Diagram sections — 32 (62 total)
AIR CONDITIONING ANTI-LOCK BRAKES ANTI-THEFT BODY CONTROL MODULES COMPUTER DATA LINES COOLING FAN CRUISE CONTROL DEFOGGERS ENGINE PERFORMANCE EXTERIOR LIGHTS GROUND DISTRIBUTION HEADLIGHTS HORN INSTRUMENT CLUSTER INTERIOR LIGHTS MEMORY SYSTEMS NAVIGATION PASSIVE RESTRAINTS POWER DISTRIBUTION POWER DOOR LOCKS POWER MIRRORS POWER SEATS POWER TOP/SUNROOF POWER WINDOWS RADIO SHIFT INTERLOCK STARTING/CHARGING SUPPLEMENTAL RESTRAINTS TRANSMISSION TRUNK, TAILGATE, FUEL DOOR WARNING SYSTEMS WIPER/WASHER
AIR CONDITIONING Automatic A/C Wiring Diagram for Mercedes-Benz C240 2004 List of elements for Automatic A/C Wiring Diagram for Mercedes-Benz C240 2004: 67 (2.3l) (2.6l, 3.2l) (behind left kick panel) w28/1 (in evaporator housing) evaporator temperature sensor (right rear of engine compt) w16/4 12v Aac multifunction sensor (in fresh air inlet) Aac pushbutton control module Aac sun sensor (right rear of engine compt) Air humidity sensor Blower motor C10 C15 C19 Can h Can l Common Computer data lines system Coolant circulation pump (w/ residual engine heat utilization system) Data Electric suction fan engine & a/c with integrated control Evap sens Fresh air flaps actuator Fresh air/recirc air flaps actuator Front pre-fuse box (right rear of engine compt) Front sam control module w/ fuse & relay module (left rear of engine compt) Fuse 125a Fuse 15a Fuse 30a Fuse 7.5a Heating systems recirc- ulation unit Heating systems recirculation unit Hot at all times Hot in run or start In-car temperature sensor In-car temperature sensor fsn motor Interior fuse box (under left end of dash) Interior lights system Left & right defroster flaps actuator Left & right footwell flaps actuator Left blending air flap actuator Left defroster vent flap actuator Left footwell flap actuator Left fresh air flap actuator Me-sfi control module Nca Overhead control panel control module Press/temp R blwr ctrl R blwr select Rear blower electronic selector wheel Rear blower motor Rear blower motor control module (below rear of center console) Recirc unit Red Refrigerant pressure & temperature sensor (bottom left side of radiator condensor) Residual heat Right blending air flap actuator Right defroster vent flap actuator Right footwell flap actuator Right fresh air flap actuator Sig W/ comfort aac W/ outside temperature indicator W16/4 (right rear of engine compt) W28/1 (behind left kick panel) W9 (at left headlamp)
ANTI-LOCK BRAKES Anti-lock Brakes Wiring Diagram for Mercedes-Benz C240 2004 List of elements for Anti-lock Brakes Wiring Diagram for Mercedes-Benz C240 2004: 68 (left rear of engine compt) (left rear of engine compt) bas brake booster (left rear of engine compt) front sam control module w/ fuse & relay module +5v 1.8l 2.6l, 3.2l Ba mv+ Bla Brk wear C10 Can-b h Can-b l Can-c h Can-c l Computer data lines system Dg1+5v Dg1-sig Diag Diaphragm travel sensor Esp & bas control module (left side of engine compt) Esp brake pressure sensor Front axle inlet solenoid valve Front axle switch- over solenoid valve Fuse 40a Fuse 50a Gd1m High pressure & return pump motor Hot at all times Left front axle solenoid valve (hold) Left front axle solenoid valve (release) Left front wheel speed sensor Left rear axle solenoid valve (hold) Left rear axle solenoid valve (release) Left rear wheel speed sensor Ls1 Ls2 Lsr Mp- Mps Nca Rear axle inlet solenoid valve Rear axle switch- over solenoid valve Red Release switch Right front axle solenoid valve (hold) Right front axle solenoid valve (release) Right front brake pad contact sensor Right front wheel speed sensor Right rear axle solenoid valve (hold) Right rear axle solenoid valve (release) Right rear brake pad contact sensor Right rear wheel speed sensor Solenoid valve Sps sol Sps solenoid valve (under vehicle, on Ss lf Ss lr Ss rf Ss rr Steering rack) Tr & la Turn rate & lateral acceleration sensor (front of cargo area) Um 1 Um 2 Vss lf Vss rf W16/3 (left side of engine compt)
ANTI-THEFT Anti-theft Wiring Diagram (1 of 2) for Mercedes-Benz C240 2004 List of elements for Anti-theft Wiring Diagram (1 of 2) for Mercedes-Benz C240 2004: 69 (-) (behind left kick panel) w28/1 (coupe) (coupe) (sedan) (sedan) A-st Alarm signal horn Amplifier module Ata hood switch Ata inclination sensor C10 C13 C14 C21 C22 C23 Can h Can l Can-b h Can-b l Computer data lines system Exterior lights system Front pre-fuse box (right rear of engine compt) Front sam control module w/ fuse & relay module (left rear of engine compt) Fuse 200a Fuse 7.5a Fzu Headlights system Hood sw Hot at all times Left front door contact switch Left rear door contact switch (sedan, wagon) Lf door ajar Lock pawl Lock pawl rotary tumbler switch Low beam Lr door ajar Motor w/ position & obstruction sensors Nca Of engine compt) Overhead control panel control module Park lamp Pnk/red Rear sam control module w/ fuse & relay module (left side of trunk) Red Rf door ajar Right front door contact switch Right rear door contact switch (sedan, wagon) Roof drive system Rr door ajar Sedan, coupe Sig Trunk ajar Trunk emerg Trunk ext Trunk lid central locking motor Trunk lid contact switch Trunk lid emergency release switch Trunk lid external operation switch Trunk motor Turn lamp Turn sig W16/3 (left side of engine compt) W16/4 (right rear W18 (at base of left "b" pillar) W19 (under right front seat) W6 (left side of trunk) Wagon Wagon, coupe Anti-theft Wiring Diagram (2 of 2) for Mercedes-Benz C240 2004 List of elements for Anti-theft Wiring Diagram (2 of 2) for Mercedes-Benz C240 2004: 33 1.8l 2.3l 2.6l, 3.2l Can-b h Can-b l Computer data lines system Di control module (provides drive-away protection) Display Door motor Electronic steering lock module (on steering column) Esa Fuse 30a Hot at all times Instrument cluster Interior central locking switch Interior fuse box (under left end of dash) Ir rec Left front door central locking motor Left front door control module Left front ir receiver Left rear door central locking motor Left rear door control module (sedan, wagon) Me-sfi control module (provides drive-away protection) Red Right front door central locking motor Right front door control module Right front ir receiver Right rear door central locking motor Right rear door control module (sean, wagon) Upper control panel control module W18 (at base of left "b" pillar) W19 (under right front seat) W28/2 (behind right kick panel)
BODY CONTROL MODULES Front SAM Control Module Wiring Diagram (1 of 3) for Mercedes-Benz C240 2004 List of elements for Front SAM Control Module Wiring Diagram (1 of 3) for Mercedes-Benz C240 2004: 52 Air pump relay Anti-lock brakes system Bla C12 C16 C17 C23 C24 Circuit 15r relay Circuit relay Circuit relay (chassis) Circuit relay (engine) Crash D2b telephone & tele aid transmitter (2003 model) emergency call system control unit (2004-2005 models) Diag Engine controls system Fanfare horns relay From fuse 45 (diagram 1 of 3) Front pre-fuse box (right rear of engine compt) Front sam control module w/ fuse & relay module (left rear of engine compt) Fuse Fuse 15a Fuse 200a Fuse 40a Fuse 5a Fuse 60a Fuse 7.5a Headlights system Hot at all times Range Red Starter relay Starting system To pin 1, conn c19 (diagram 2 of 3) To pin 1, conn c3 (diagram 2 of 3) To pin 2, conn c2 (diagram 2 of 3) To pin 2, conn c3 (diagram 2 of 3) To pin 3, conn c13 (diagram 2 of 3) To pin 4, conn c12 (diagram 1 of 3) To pin 4, conn c19 (diagram 2 of 3) To pin 6, conn c19 (diagram 2 of 3) To pin 6, conn c2 (diagram 2 of 3) To pin 8, conn c19 (diagram 2 of 3) To pin 8, conn c3 (diagram 2 of 3) To pin 9, conn c2 (diagram 2 of 3) Transmission system Vss lf Vss rf Wiper Wiper on/off relay Wiper stage 1-2 relay Wiper/washer system Front SAM Control Module Wiring Diagram (2 of 3) for Mercedes-Benz C240 2004 List of elements for Front SAM Control Module Wiring Diagram (2 of 3) for Mercedes-Benz C240 2004: 56 (2003 & early 2004 models only) (cl) (except cl) (left side of engine compt) w16/3 (under left side of dash) 15r Air conditioning system Air pump Anti-lock brakes system Anti-theft system Bridge C11 C13 C19 Can-b h Can-b l Computer data lines system Cooling fans system Cpp Data link connector Di control module Diag Ecm Engine controls system From fanfare l horns relay (diagram 1 of 3) From fuse 47 f (diagram 1 of 3) From fuse 48 h (diagram 1 of 3) From fuse 50 i (diagram 1 of 3) From fuse 51 j (diagram 1 of 3) From fuse 51 k (diagram 1 of 3) From fuse 53 b (diagram 1 of 3) From fuse 53 c (diagram 1 of 3) From fuse 53 d (diagram 1 of 3) From fuse 54 e (diagram 1 of 3) From fuse 57 a (diagram 1 of 3) Front cigar lighter Front sam control module w/ fuse & relay module (left rear of engine compt) Fuse 57 5a Fuse 59 50a Fuse 60 40a Fuse 62 5a Fuse 63 5a Fuse 64 10a Headlights system Hood Horns system Hot at all times Instrument cluster Interior lights system Kpr Memory system Pnk/red Rear sam control module w/ fuse & relay module Red Sound systems W28/2 (behind right kick panel) Front SAM Control Module Wiring Diagram (3 of 3) for Mercedes-Benz C240 2004 List of elements for Front SAM Control Module Wiring Diagram (3 of 3) for Mercedes-Benz C240 2004: 68 (2003 & 2004 early production models only) 58d A/c system Anti-lock brakes system Backup Brk lvl C10 C14 C15 C18 C20 C21 C22 C24 C25 C26 Can-b h Can-b l Charging system Computer data lines system Control module box blower motor Cool lvl Cooling fans system Cpp Crash sig Data link connector (under left side of dash) Di control module Diag Dlc Ecm Emergency call system control unit (front of cargo area) Engine controls system Except models Exterior lights system Fan Front sam control module w/ fuse & relay module (left rear of engine compt) Frt wiper Headlights system Headlights system (xenon) Hose heat L fog L hi L lo Lamp sw Lf mark Lf park Lf turn Mod cool Nzl heat Park brk Pnk R fog R hi R lo R press Rf mark Rf park Rf turn Sra Telephone wiring Temp Transmission system Vss lf sig out W9 (at left headlamp unit) Warning systems Wash lvl Wiper/washer system Xenon diagnos. Rear SAM Control Module Wiring Diagram (1 of 2) for Mercedes-Benz C240 2004 List of elements for Rear SAM Control Module Wiring Diagram (1 of 2) for Mercedes-Benz C240 2004: 62 (-) (2003 & 2004 early production models) Anti-theft system C10 C12 C13 C19 C20 Can-b h Can-b l Circuit 15r (1) relay Circuit 15r (2) relay Computer data lines system Crash Defogger system Door locks system Engine controls system Front pre-fuse box (right rear of engine compt) Front sam control module w/ fuse & relay module (left rear of engine compt) Fuel lvl Fuel pump relay Fuse 15a Fuse 17 20a Fuse 20 7.5a Fuse 200a Fuse 20a Fuse 30a Fuse 40a Fuse 5a Fuse 7.5a Fuse 8 7.5a Hot at all times Interior socket Kpr Lf comfort Lf door Lr door Memory system & seat system) Passive restraints system Pnk Pnk/red Power windows system Rear defogger relay Rear sam control module w/ fuse & relay module (left side of trunk) Red Rf comfort Rf door Rr door S17 S18 S19 S20 Sdar control unit (right rear of trunk) Seats system Side of trunk) (coupe) Side of trunk) (sedan & wagon) Sig Telephone wiring To pin 2 conn c26 (diagram 2 of 2) W55 (right W6 (left Wiper/ washer system Rear SAM Control Module Wiring Diagram (2 of 2) for Mercedes-Benz C240 2004 List of elements for Rear SAM Control Module Wiring Diagram (2 of 2) for Mercedes-Benz C240 2004: 64 Amp mod C10 C11 C12 C13 C14 C15 C16 C17 C18 C21 C22 C23 C24 C25 C26 C27 C28 Chmsl Common Coupe & wagon only Door locks system Exterior lights system From fuse 7 (diagram 1 of 2) Fuel filter cap polarity change 1 relay Fuel filter cap polarity change 2 relay Fuse 15 10a Fuse 3 7.5a Fuse 8 7.5a Fuse 9 25a Hot at all times Interior lights system L license Lock pawl Lr back Lr fog lmp Lr mark Lr park Lr stop Lr turn Models only Nca Neck-pro head restraint triggering device Overhead control panel control module Power windows system R license R wiper Radio Rear blind Rear sam control module w/ fuse & relay module (left side of trunk) Rhr (kaf) release valve (left side of trunk) Rhr rel Rr back Rr mark Rr park Rr stop Rr turn Sound systems Trk lamp Trunk cl Trunk emerg Trunk ext Trunk sw Wiper/washer system
COMPUTER DATA LINES Data Link Connector Wiring Diagram for Mercedes-Benz C240 2004 List of elements for Data Link Connector Wiring Diagram for Mercedes-Benz C240 2004: 36 (1.8l) (2.6l, 3.2l) Brake booster vacuum pump control module (2003 c230) C10 C11 C20 C21 C24 Can h Can l Comand operating, display & control module Computer data lines system (high/low bus circuit) D2b telephone & tele aid transmitter/ receiver Data link connector (under left side of dash) Di control module Diag Electronic selector lever module Engine control module (left rear of engine compt) Esp & bas control module (left side of engine compt) Etc control module (under right side of dash) Front pre-fuse box (right rear of engine compt) Front sam control module w/ fuse & relay module (left rear of engine compt) Fuse 200a Fuse 5a Hot at all times J10 Left headlamp unit Pnk/red Radio Red Right headlamp unit W/ comand W/o comand W16/3 (left side of engine compartment) W16/3 (left side of engine compt) W16/5 (left rear of engine compt) High/Low Bus Wiring Diagram (1 of 2) for Mercedes-Benz C240 2004 List of elements for High/Low Bus Wiring Diagram (1 of 2) for Mercedes-Benz C240 2004: 26 1.8l 2.6l, 3.2l Aac pushbutton control module Brake booster vacuum pump control module (c230) (left rear of engine compt) C10 C20 Can databus adapter connector (behind left kick panel) Can h Can l Can-b h Can-b l Can-c h Can-c l Cockpit voltage distributor connector (under left side of dash) Di control module Electronic selector lever control module (base of gear selector lever) Engine control module (me-sfi) (left rear of engine compt) Esp & bas control module (left side of engine compt) Etc control module (egs) (under right side of dash) Front sam control module w/ fuse & relay module (left rear of engine compt) Instrument cluster Overhead control panel control module Steering column module Steering column module (at top of steering column) Upper control panel control module W28/1 (behind left kick panel) High/Low Bus Wiring Diagram (2 of 2) for Mercedes-Benz C240 2004 List of elements for High/Low Bus Wiring Diagram (2 of 2) for Mercedes-Benz C240 2004: 22 C10 Can h Can l Can-b h Can-b l Comand operating, display & control module (w/ comand) Coupe D2b telephone & tele aid transmitter/ receiver Driver seat adjustment control module (w/ memory) (under seat) Front sam control module w/ fuse & relay module (left rear of engine compt) J10 Left front door control module Left rear door control module Left voltage distributor connector (behind left kick panel) kick panel) Radio (w/o comand) Rear sam control module w/ fuse & relay module (at left side of trunk) Restraint systems control module Right front door control module Right front seat adjustment control module (w/ memory) (under seat) Right rear door control module Right voltage distributor connector (behind right kick panel) Sedan, wagon
COOLING FAN Cooling Fan Wiring Diagram for Mercedes-Benz C240 2004 List of elements for Cooling Fan Wiring Diagram for Mercedes-Benz C240 2004: 25 C10 C15 Can h Can l Computer data lines system Cool fan Coolant circulation pump (w/ residual engine heat utilization system) Coolant temperature sensor (right front of engine) Ct sens + Electric suction fan engine & a/c with integrated control Engine controls system Front pre-fuse box (right rear of engine compt) Front sam control module w/ fuse & relay module (left rear of engine compt) Fuse 125a Fuse 7.5a Hot at all times Hot in run or start Me-sfi control module Press/temp Red Refrigerant pressure & temperature sensor (bottom left side of radiator condenser) Residual heat Sens - W16/4 (right rear of engine compt) W9 (at left headlamp)
CRUISE CONTROL Cruise Control Wiring Diagram for Mercedes-Benz C240 2004 List of elements for Cruise Control Wiring Diagram for Mercedes-Benz C240 2004: 31 (top of column) Acc Accel/ set Accelerator pedal assembly (above pedal assembly) C19 Can-b h Can-b l Can-c h Can-c l Computer data lines system Contact Cruise control switch Dec Decel/ set Engine control module (left rear of engine compt) Front sam control module w/ fuse & relay module (left rear of engine compt) Off Pedal sens 1 + Pedal sens 1 - Pedal sens 2 + Pedal sens 2 - Pedal sens volt Res Resume Safety Steering column module Throttle valve actuator (front left side of engine) Tva Tva mtr Tva sig W28/2 (behind right kick panel)
DEFOGGERS Heated Mirrors Wiring Diagram for Mercedes-Benz C240 2004 List of elements for Heated Mirrors Wiring Diagram for Mercedes-Benz C240 2004: 20 Aac pushbutton control module Can-b h Can-b l Computer data lines system Defroster switch Fuse 15a Fuse 30a Hot at all times Interior fuse box (under left end of dash) Left "b" pillar) Left exterior mirror Left front door control module Nca Right exterior mirror Right front door control module Sh (+) Sh (-) W18 (at base of W19 (under right front seat) W28/1 (behind left kick panel) Rear Defogger Wiring Diagram for Mercedes-Benz C240 2004 List of elements for Rear Defogger Wiring Diagram for Mercedes-Benz C240 2004: 19 Aac pushbutton control module C20 Can-b h Can-b l Computer data lines system Front pre-fuse box (right rear of engine compt) Fuse 15a Fuse 200a Fuse 40a Heated rear window Hot at all times Interior fuse box (under left end of dash) Rear signal pickup & activation control module (sam) w/ fuse & relay module (left side of trunk) Rear window defroster relay Rear window defroster switch Red W13 (at rear window defroster) W28/1 (behind left kick panel) W6 (left side of trunk)
ENGINE PERFORMANCE
2.6L 2.6L, Engine Performance Wiring Diagram (1 of 3) for Mercedes-Benz C240 2004 List of elements for 2.6L, Engine Performance Wiring Diagram (1 of 3) for Mercedes-Benz C240 2004: 51 (left side of engine compt) w16/3 (rear of right cyl bank) egr vacuum transducer (top of engine) air pump switchover sensor Accelerator pedal sensor (above pedal assembly) Acf vlv Activated charcoal filter shutoff valve (above right rear wheelwell) Air pump Aps vlv Can h Can l Clutch pedal switch Coil 5a Computer data lines system Cooling fans system Data link connector Diag Egr Engine control module (me-sfi) (left rear of engine compt) Fan Ftp +5v Ftp - Ftp sig Fuel injectors Fuel pump Fuel tank pressure sensor (under left rear seat) Gen Generator Inj 2 Inj 3 Inj 5 Inj 6 Kickdown switch (incorporated w/ accelerator pedal assembly) Kickdwn L o2 d L o2 s Left o2 sensor (downstream) (left front of vehicle, in exhaust) Nca O2 d P/n R o2 d R o2 u Right o2 sensor (downstream) (right front of vehicle, in exhaust) Sp1m Sp1s Sp2m Sp2s Start Tna Usp1 Variable intake manifold switchover valve Vims vlv 2.6L, Engine Performance Wiring Diagram (2 of 3) for Mercedes-Benz C240 2004 List of elements for 2.6L, Engine Performance Wiring Diagram (2 of 3) for Mercedes-Benz C240 2004: 36 (base of left "b" pillar) w18 (left rear of engine compt) front sam control module w/ fuse & relay module 87 m1 87 m2 Air pump (front center of eng compt) C10 C13 C17 Can h Can l Circuit 87 relay (engine) Computer data lines system Cpp Front pre-fuse box (right rear of engine compt) Fuel pump Fuel pump assembly Fuel pump relay Fuse 15a Fuse 200a Fuse 25a Fuse 5a Fuse 60a Hot at all times Hot in run or start Left fuel level sensor Left o2 sensor (upstream) (left front of vehicle, in exhaust) Nca Of engine compt) Rear sam control module w/ fuse & relay module (left side of trunk) Red Right fuel level sensor Right o2 sensor (upstream) (right front of vehicle, in exhaust) Throttle valve actuator (front left side of engine) Tna W11/3 (top center front of engine) W16/3 (left side 2.6L, Engine Performance Wiring Diagram (3 of 3) for Mercedes-Benz C240 2004 List of elements for 2.6L, Engine Performance Wiring Diagram (3 of 3) for Mercedes-Benz C240 2004: 60 (center rear of intake manifold) hot film maf sensor (left cyl bank) left knock sensor (left rear corner of engine compt) purge control valve (left rear of engine compt) (left rear of engine) crankshaft position sensor (lower right front of engine) oil sensor (pins 29-38: not used) (right cyl bank) right knock sensor (right front of engine) camshaft hall sensor (right front of engine) coolant temperature sensor +5v Akf Ap mo+ Ap mo- Ckp Clear Cmp sig Coil 1a Coil 1b Coil 2a Coil 2b Coil 3a Coil 3b Coil 4a Coil 4b Coil 5b Coil 6a Coil 6b Cool tmp Cylinder ignition coils Ea ip1s Ea ip2s Engine control module (me-sfi) (left rear of engine compt) Inj 1 Inj 4 L ks - L ks sig L o2 d L o2 u Maf Maf +5v Maf - Maf sig Mr ip O2 u Oil sens Pnk Press sig R ks - R ks sig R o2 d R o2 u Radio interference suppression capacitor 1 (top of engine) Radio interference suppression capacitor 2 (top of engine) Red Sens - To spark plugs Uref 2 W11/3 (top center front of engine) W16/5
EXTERIOR LIGHTS Backup Lamps Wiring Diagram for Mercedes-Benz C240 2004 List of elements for Backup Lamps Wiring Diagram for Mercedes-Benz C240 2004: 17 Back- up lamp Back- up lamp switch (on right side of transmission) (m/t) C10 C14 Can-b h Can-b l Computer data lines system Electronic selector lever control module (at base of selector lever) (a/t) Front sam control module w/ fuse & relay module (left rear of engine compt) Left taillamp unit Lr backup Rear sam control module w/ fuse & relay module (left side of trunk) Reverse Right taillamp unit Rr backup W18 (at base of left "b" pillar) W6 (left side of trunk) Exterior Lamps Wiring Diagram (1 of 2) for Mercedes-Benz C240 2004 List of elements for Exterior Lamps Wiring Diagram (1 of 2) for Mercedes-Benz C240 2004: 61 Auto C10 C13 C19 C20 Can h Can l Can-b h Can-b l Computer data lines system Esp & bas control module (left side of engine compt) Exterior lamps Fog lamp Fog lamp ind Front sam control module w/ fuse & relay module (left rear of engine compt) Fuse 5a Head Headlamp wash Hot at all times Hot in run or start Hot in run, acc, or start In Instrument cluster Lamp switch module Left Left exterior mirror Left front door control module Left front side marker lamp Left headlamp unit Left turn ind Lf mark Lf park Lf turn Mirror adjust Mirror fold Mirror select Mls Nca Off Out Park Pnk/red Red Rf mark Rf park Rf turn Right Right exterior mirror Right front door control module Right front side marker lamp Right headlamp unit Right turn ind Sounder Stand/ park lamp Stoplamp switch (on brake pedal bracket) Turn Turn lamp W16/3 (left side of engine compt) W16/4 (right rear of engine compt) W28/2 (behind right kick panel) W9 (at left headlamp) Exterior Lamps Wiring Diagram (2 of 2) for Mercedes-Benz C240 2004 List of elements for Exterior Lamps Wiring Diagram (2 of 2) for Mercedes-Benz C240 2004: 48 (coupe) (sedan & wagon) (right side of trunk) w55 w6 (left side of trunk) Ambient light & road ahead sensors Automatic light switch daylight sensor (front of headliner) Back- up lamp C14 C21 Can-b h Can-b l Center high mount stop lamp Chmsl Combination switch Computer data lines system Di control module Front pre-fuse box (right rear of engine compt) Fuse 200a Hazard switch Hot at all times L license Left license plate lamp Left rear side marker lamp (coupe) Left taillamp unit Lr backup Lr mark Lr park Lr stop Lr turn Overhead control panel control module Pnk Pnk/red R license Rear sam control module w/ fuse & relay module (left side of trunk) Red Right license plate lamp Right rear side marker lamp (coupe) Right taillamp unit Rr backup Rr mark Rr park Rr stop Rr turn Stop lamp Tail/ park lamp Turn signal lamp Turn signal switch Upper control panel control module W28/2 (behind right kick panel) W6 (left side of trunk)
GROUND DISTRIBUTION Ground Distribution Wiring Diagram for Mercedes-Benz C240 2004 List of elements for Ground Distribution Wiring Diagram for Mercedes-Benz C240 2004: 22 Amplifier module 1, amplifier module 2 Cd changer, front passenger front seat adjustment control module with memory, driver front seat adjustment control module with memory, left rear door contact switch, lower control field control module, left front door contact switch, backup lamp switch, clutch pedal switch, driver seat backrest release microswitch, fuel pump (fp), right front backrest heated cushion, right front seat heated cushion, left front backrest heated cushion, left front seat heated cushion, left front seat belt comfort solenoid, right front seat belt comfort solenoid, left front door control module, rear left door control module, fan motors 1 & 2 Central gateway control unit, right fog lamp, right front side marker lamp, air pump, charge air cooler circulation pump, fanfare horns, c-aac [k-kla] multifunction sensor, c-aac sun sensor, coolant circulation pump, right front headlamp unit, alarm signal horn Esp and bas control module, front sam control module with fuse and relay module, ata [edw] hood switch, brake fluid indicator switch, parking brake indicator switch, clutch pedal switch, washer nozzle heaters Hcs pump, left front headlamp unit, tailgate washer fluid pump, level control oil level switch, washer nozzle hose heater, electric suction fan engine and ac with integrated control, left fog lamp, left front side marker lamp, windshield washer fluid pump, control module box blower motor Overhead control panel control module, rear blower motor control module, rear blower electronic selector wheel, can databus adapter connector, aac pushbutton control module, heating systems recirculation unit Radio interference suppression capacitor, air pump, radio interference suppression capacitor 1, radio interference suppression capacitor 2 Radio, command operating, display and control module, right front door contact switch, right rear door contact switch, front passenger seat backrest release microswitch, rear right door control module, right front door control module, ctel separation point Rear sam control module, left taillamp, right taillamp, subwoofer loudspeaker, interior socket, rear screen blind relay, tailgate wiper motor, trunk lid external operation switch, lock pawl rotary tumbler switch, trunk lid external operation switch, trunk lid contact switch, right license plate lamp, center high-mounted stop lamp, left license plate lamp, trunk lid cl actuator motor, right rear side marker lamp, left rear side marker lamp Sound amplifier, voice control system control module, universal portable ctel interface (upci [uhi]) control module, sdar control unit, d2b telephone and tele aid transmitter/receiver, auxiliary battery, sos pushbutton switch, mb-info and breakdown assistance button group, e-net compensator, frequency switchover control module, ctel (tel) interface Upper control panel control module, electric steering lock control module, di control module, steering column module, instrument cluster, glove compartment illumination with switch, front ashtray illumination, front cigar lighter, left front seat ventilation blower regulator, right front seat ventilation blower regulator, center air outlet illumination, left air outlet illumination, right air outlet illumination, combination switch, fanfare horns and airbag clock spring contact, steering angle sensor, brake booster vacuum pump control module, lamp switch module W11/3 (top center front of engine) W16/3 (left side of engine compt) W16/4 (right rear of engine compt) W18 (base of left "b" pillar) W19 (under right front seat) W28/1 (behind left kick panel) W28/2 (behind right kick panel) W6 (left side of trunk) W7 (right side of trunk) W8/1 (right side of trunk) W9 (at left headlamp)
HEADLIGHTS Headlights Wiring Diagram, with Xenon Lamps for Mercedes-Benz C240 2004 List of elements for Headlights Wiring Diagram, with Xenon Lamps for Mercedes-Benz C240 2004: 60 Ambient light & road ahead sensors Auto Automatic light switch daylight sensor (front of headliner) C10 C14 C19 C20 Can h Can l Can-b h Can-b l Computer data lines system Diag Exterior lamps Fog lamp Fog lamp ind Front axle sensor Front pre-fuse box (right rear of engine compt) Front sam control module w/ fuse & relay module (left rear of engine compt) Fuse 200a Fuse 5a Fuse 7.5a Head Headlamp range adjustment motor Headlamp wash High beam indicator High xenon beam Hot at all times Hot in run or start In Instrument cluster L fog L hi beam L lo beam Lamp switch module Left Left front fog lamp Left headlamp unit Mirror adjust Mirror fold Mirror select Off Out Overhead control panel control module Park R fog R hi beam R lo beam Rear axle sensor Red Right Right front fog lamp Right headlamp unit W16/3 (left side of engine compt) W16/4 (right rear of engine compt) W28/2 (behind right kick panel) W9 (at left headlamp) Xenon beam Xenon control module Xenon ignition module Headlights Wiring Diagram, without Xenon Lamps for Mercedes-Benz C240 2004 List of elements for Headlights Wiring Diagram, without Xenon Lamps for Mercedes-Benz C240 2004: 53 Ambient light & road ahead sensors Auto Automatic light switch daylight sensor (front of headliner) C10 C14 C19 C20 Can h Can l Can-b h Can-b l Computer data lines system Exterior lamps Fog lamp Fog lamp ind Front pre-fuse box (right rear of engine compt) Front sam control module w/ fuse & relay module (left rear of engine compt) Fuse 200a Fuse 5a Head Headlamp wash High beam High beam indicator Hot at all times Hot in run or start In Instrument cluster L fog L hi beam L lo beam Lamp switch module Left Left front fog lamp Left headlamp unit Low beam Mirror adjust Mirror fold Mirror select Off Out Overhead control panel control module Park R fog R hi beam R lo beam Red Right Right front fog lamp Right headlamp unit W16/3 (left side of engine compt) W16/4 (right rear of engine compt) W28/2 (behind right kick panel) W9 (at left headlamp)
HORN Horn Wiring Diagram for Mercedes-Benz C240 2004 List of elements for Horn Wiring Diagram for Mercedes-Benz C240 2004: 28 30z C10 C19 C20 Can-b h Can-b l Can-c h Can-c l Clock- spring Computer data lines system Fanfare horns Fanfare horns relay Front pre-fuse box (right rear of engine compt) Front sam control module w/ fuse & relay module (left rear of engine compt) Fuse 200a Fuse 60a Horn switch Hot at all times Left multi-function steering wheel pushbutton group Nca Red Relay Right multi-function steering wheel pushbutton group Steering column module Str whl W16/3 (left side of engine compt) W16/4 (right rear of engine compt) W28/2 (behind right kick panel)
INSTRUMENT CLUSTER Instrument Cluster Wiring Diagram for Mercedes-Benz C240 2004 List of elements for Instrument Cluster Wiring Diagram for Mercedes-Benz C240 2004: 51 (-) (1.8l) (2.6l, 3.2l) Abs mil Airbag indicator & warning lamp Brake fluid & parking brake warning lamp Brake fluid indicator switch (in brake fluid reservoir) Brk fluid Can h Can l Computer data lines system Driver seat belt buckle restraint systems switch Drvr belt Dtr warning lamp Electronic selector lever control module (base of gear selector lever) Engine malfunction indicator lamp Esp warning lamp Etc control module (under right side of dash) Front sam control module w/ fuse & relay module (left rear of engine compt) Fuel level gauge w/ reserve indicator Fuse 7.5a Gear display (prndl) High beam indicator lamp Hot at all times Hot in run or start Illumination Illumination rheostat Instrument cluster Interior fuse box (under left end of dash) L fuel Left fuel level sensor (under left front seat) Left turn indicator Me-sfi control module (left rear of engine compt) Multifunction display Nca Parking brake indicator switch (near park brake lever) Prk brk R fuel Rear sam control module w/ fuse & relay module (left side of trunk) Restraint systems control module (under center console, left of shifter) Right fuel level sensor (under right front seat) Right turn indicator Seat belt reminder lamp Sounder Speedometer Tachometer Trip odometer reset button W16/3 (left side of engine compt) W26 (under center console, left of shifter) W28/2 (behind right kick panel) Warning buzzer
INTERIOR LIGHTS Courtesy Lamps Wiring Diagram for Mercedes-Benz C240 2004 List of elements for Courtesy Lamps Wiring Diagram for Mercedes-Benz C240 2004: 60 (behind left kick panel) w28/1 C10 C13 C17 C19 C21 C22 C24 Can h Can l Can-b h Can-b l Computer data lines system Ctsy lmp Except wagon Front dome Front pre-fuse box (right rear of engine compt) Front sam control module w/ fuse & relay module (left rear of engine compt) Fuse 15a Fuse 200a Glove compartment switch & lamp Hot at all times Hot in run or start Left front door contact switch Left front door control module Left front door entrance & exit lamp Left reading Left rear door contact switch (sedan, wagon) Left rear door control Left rear door entrance & exit lamp Left trunk lamp Left vanity mirror lamp Lf door ajar Lr door ajar Overhead control panel control module Pnk/red Rear dome Rear dome lamp Rear sam control module w/ fuse & relay module (left side of trunk) Red Rf door ajar Right front door contact switch Right front door control module Right front door entrance & exit lamp Right reading Right rear door contact switch (sedan, wagon) Right rear door control module Right rear door entrance & exit lamp Right trunk lamp Right vanity mirror lamp Rr door ajar Trunk ajar Trunk lamp (except wagon) Trunk lid contact switch W16/3 (left side of engine compt) W18 (at base of left "b" pillar) W19 (under right front seat) W28/2 (behind right kick panel) W6 (left side of trunk) Wagon Instrument Illumination Wiring Diagram for Mercedes-Benz C240 2004 List of elements for Instrument Illumination Wiring Diagram for Mercedes-Benz C240 2004: 63 (-) Auto Automatic transmission program selector pushbutton C10 C11 C19 C20 C25 Can h Can l Can-b h Can-b l Center air outlet illumination Clock- spring Computer data lines system Exterior lamps Fog lamp Fog lamp ind Front ashtray illumination Front cigar lighter Front pre-fuse box (right rear of engine compt) Front sam control module w/ fuse & relay module (left rear of engine compt) Fuse 200a Fuse 5a Fuse 7.5a Head Headlamp wash Hot at all times Hot in run or start Illum Illumination Illumination rheostat In Instrument cluster Lamp switch module Left Left air outlet illumination Left rear door control module Left rear power window switch Lower control field control module Mb-info & breakdown assistance button group Mirror adjust Mirror fold Mirror select Nca Off Out Park Rear blower electronic selector wheel Red Right Right air outlet illumination Right front door control module Right front power window switch Right rear door control module Right rear power window switch Sos push button switch Steering wheel multi- function switches (2001, 2002 early production) Upper control panel control module W16/3 (left side of engine compt) W19 (under right front seat) W28/2 (behind right kick panel) W7 (right side of trunk)
MEMORY SYSTEMS Driver"s Memory Seat Wiring Diagram for Mercedes-Benz C240 2004 List of elements for Driver"s Memory Seat Wiring Diagram for Mercedes-Benz C240 2004: 36 (+) (-) (at base of left "b" pillar) w18 15r Backrest Can-b h Can-b l Computer data lines system Coupe Driver front seat adjustment control module (under seat) Driver seat backrest adjustment motor Driver seat forward/back adjustment motor Driver seat front up/down adjustment motor Driver seat head restraint raise/lower adjustment motor Driver seat rear up/down adjustment motor Esa sw Front (raise/ lower) Front pre-fuse box (right rear of engine compt) Fuse 200a Fuse 30a Head restraint (raise/ lower) Hot at all times Interior fuse box (under left end of dash) Left front door control module Left front door esa switch group Memory location Memory store Rear (raise/ lower) Rear sam control module w/ fuse & relay module (left side of trunk) Red Seat (forward/ back) Sedan & wagon Steering column memory circuit W18 (at base of left "b" pillar) W55 (at right side of trunk) W6 (left side of trunk) Passenger"s Memory Seat Wiring Diagram for Mercedes-Benz C240 2004 List of elements for Passenger"s Memory Seat Wiring Diagram for Mercedes-Benz C240 2004: 35 (+) (-) (at base of left "b" pillar) w18 15r Backrest Can-b h Can-b l Computer data lines system Coupe Esa sw Front (raise/ lower) Front pre-fuse box (right rear of engine compt) Fuse 200a Fuse 30a Head restraint (raise/ lower) Hot at all times Interior fuse box (under left end of dash) Memory location Memory store Passenger front seat adjustment control module (under seat) Passenger seat backrest adjustment motor Passenger seat forward/back adjustment motor Passenger seat front up/down adjustment motor Passenger seat head restraint raise/lower adjustment motor Passenger seat rear up/down adjustment motor Rear (raise/ lower) Rear sam control module w/ fuse & relay module (left side of trunk) Red Right front door control module Right front door esa switch group Seat (forward/ back) Sedan & wagon W18 (at base of left "b" pillar) W55 (at right side of trunk) W6 (left side of trunk)
NAVIGATION D2B Data Bus Wiring Diagram for Mercedes-Benz C240 2004 List of elements for D2B Data Bus Wiring Diagram for Mercedes-Benz C240 2004: 19 Cd changer Command operating, display & control unit Computer data lines system D2b D2b fiber optics connector (under right rear seat) D2b in D2b out D2b telephone & tele aid transmitter/receiver Diag J10 Radio Sdars control unit Sound amplifier Telephone interface Voice control system control module W/ command actuation circuit W/ radio circuit Wake up Wake up signal connector (inside interior of right footwell) Tele Aid Wiring Diagram for Mercedes-Benz C240 2004 List of elements for Tele Aid Wiring Diagram for Mercedes-Benz C240 2004: 57 (at right side of trunk) w7 +aux. batt 15r Airbag sig Aux. antenna Auxiliary battery C11 C23 C25 C26 Can h Can l Computer data lines system Ctel antenna D2b D2b data bus circuit D2b in D2b out D2b telephone & tele aid transmitter/ receiver (at front of cargo area) Diag Emergency call spare antenna Frequency switchover control module Front sam control module fuse & relay module (left rear of engine compt) Fuse 30a Gps Gps antenna Hot at all times Info led Info sw Interior fuse box (left side of dash) J10 Led Left front emergency call speaker Mb-info & breakdown assistance switch Mic + Mic - Mic+ Mic- Mute Navigation system (voice activation circuit) Nca Pnk Radio/command operating, display & control unit or radio Rap sw Rear sam control module w/ fuse & relay module (left side of trunk) Red Rf sw Sos led Sos pushbutton switch Sos sw Speaker + Speaker - Telephone system Trunk lid/ ffs separation point Unlock W7 (at right side of trunk) Wake up Voice Activation Wiring Diagram for Mercedes-Benz C240 2004 List of elements for Voice Activation Wiring Diagram for Mercedes-Benz C240 2004: 19 15r D2b D2b data bus circuit D2b in D2b out D2b telephone & tele aid transmitter/ receiver Fuse 5a Fuse 7.5a Hands free microphone Hot at all times Hot in acc, run or start J10 Mic+ Mic- Nca Rear sam control module fuse & relay module (left side of trunk) Voice control system control module W7 (at right rear wheelwell) Wake up
PASSIVE RESTRAINTS Passive Restraints Wiring Diagram, Early Production for Mercedes-Benz C240 2004 List of elements for Passive Restraints Wiring Diagram, Early Production for Mercedes-Benz C240 2004: 16 (coupe) (right side of trunk) w55 w6 (left side of trunk) (sedan & wagon) Can-b h Can-b l Comfort Computer data lines system Front pre-fuse box (right rear of engine compt) Fuse 200a Hot at all times Left front seat belt comfort solenoid Pnk Rear sam control module w/ fuse & relay module (left side of trunk) Red Right front seat belt comfort solenoid W18 (base of left "b" pillar)
POWER DISTRIBUTION Power Distribution Wiring Diagram for Mercedes-Benz C240 2004 List of elements for Power Distribution Wiring Diagram for Mercedes-Benz C240 2004: 49 (diagram 1 of 2) 1.8l super- charged 175a Battery Brake booster vacuum pump control module Cd changer Central gateway control unit Comfort acc pushbutton control module, upper control panel control module D2b telephone & tele aid transmitter/ receiver Di control module Driver front seat adjustment control module Electric suction fan engine & a/c w/ integrated control Electronic steering lock control module Emergency call system control unit Emergency call system control unit, e-net compensator, ctel interface Except 1.8l super- charged From fuse 31 a Front pre-fuse box (right rear of engine compt) Front sam control module w/ fuse & relay module Fuse 125a Fuse 15a Fuse 200a Fuse 20a Fuse 25a ('03) Fuse 30a Fuse 30a (c230) Fuse 30a (c240, c320) Fuse 60a Fuse 7.5a Generator Heating systems recirculation unit Instrument cluster Interior fuse box (under left end of dash) Left front door control module Passenger front seat adjustment control module Rear blower motor control module Rear left door control module Rear right door control module Rear sam control module w/ fuse & relay module Red Red/ pnk Right front door control module Sedan & coupe Sound amplifier Starter motor Starter/ alternator fuse To fuse 32 (diagram 1 of 2) Trunk lid emergency release switch, rear sam control module w/ fuse & relay module Upper control panel control module
POWER DOOR LOCKS Power Door Locks Wiring Diagram (1 of 2) for Mercedes-Benz C240 2004 List of elements for Power Door Locks Wiring Diagram (1 of 2) for Mercedes-Benz C240 2004: 51 (behind left kick panel) w28/1 (left rear of engine compt) front sam control module w/ fuse & relay module (sedan) (coupe) C10 C13 C21 C22 Can h Can l Can-b h Can-b l Computer data lines system Display Front pre-fuse box (right rear of engine compt) Fuel cap Fuel filler cap central locking motor Fuse 200a Hot at all times Instrument cluster Interior central locking switch Left front door contact switch Left rear door contact switch (sedan, wagon) Lf door ajar Lock pawl Lock pawl rotary tumbler switch (coupe, sedan) Lr door ajar Motor w/ position & obstruction sensors Nca Overhead control panel control module Pnk/red Rear sam control module w/ fuse & relay module (left side of trunk) Red Rf door ajar Right front door contact switch Right rear door contact switch (sedan, wagon) Roof drive system Rr door ajar Sedan, wagon Trunk ajar Trunk emerg Trunk ext Trunk lid central locking motor Trunk lid contact switch Trunk lid emergency release switch Trunk lid external operation switch Trunk motor Upper control panel control module W16/3 (left side of engine compt) W18 (at base of left "b" pillar) W19 (under right front seat) W6 (left side of trunk) Power Door Locks Wiring Diagram (2 of 2) for Mercedes-Benz C240 2004 List of elements for Power Door Locks Wiring Diagram (2 of 2) for Mercedes-Benz C240 2004: 27 Can-b h Can-b l Computer data lines system Door motor Esp & bas control module Fuse 30a Hot at all times Interior fuse box (under left end of dash) Ir rec Left front door central locking motor Left front door control module Left front ir receiver Left rear door central locking motor Left rear door control module (sedan, wagon) Red Right front door central locking motor Right front door control module Right front ir receiver Right rear door central locking motor Right rear door control module (sedan, wagon) Ss lf Ss lr Ss rf Ss rr To wheel speed sensors W18 (at base of left "b" pillar) W19 (under right front seat)
POWER MIRRORS Electrochromic Mirror Wiring Diagram for Mercedes-Benz C240 2004 List of elements for Electrochromic Mirror Wiring Diagram for Mercedes-Benz C240 2004: 33 15r 31 ais Ais Auto dim C22 Can-b h Can-b l Can-c h Can-c l Computer data lines system Coupe Dim Electronic selector lever control module (at base of selector lever) Front pre-fuse box (right rear of engine compt) Fuse 200a Fuse 30a Hot at all times Interior fuse box (under left end of dash) Interior rearview mirror unit Left exterior mirror Left front door control module Mirror sensor (back) Mirror sensor (front) Nca Overhead control panel control module Pnk/red Rear sam control module w/ fuse & relay module (left side of trunk) Red Sedan & covertible W18 (at base of left "b" pillar) W28/1 (behind left kick panel) W55 (rightside of trunk) W6 (left side of trunk) Power Mirror Wiring Diagram for Mercedes-Benz C240 2004 List of elements for Power Mirror Wiring Diagram for Mercedes-Benz C240 2004: 58 30z Auto Auto dim C10 C19 C20 Can h Can l Can-b h Can-b l Common Computer data lines system Dim Exterior lamps Fog lamp Fog lamp ind Fold Fold-in motor Front pre-fuse box (right rear of engine compt) Front sam control module w/ fuse & relay module (left rear of engine compt) Fuse 200a Fuse 30a Fuse 5a Fuse 60a Head Headlamp wash Heat Heating element Hot at all times Hot in run or start In Interior fuse box (under left end of dash) L/r mtr Lamp switch module Left Left exterior mirror Left front door control module Left/ right motor Mirror adjust Mirror fold Mirror select Nca Off Out Park Pnk/red Red Right Right exterior mirror Right front door control module Turn Turn signal U/d mtr Up/ down motor W16/3 (left side of engine compt) W18 (at base of left "b" pillar) W19 (under right front seat) W28/2 (behind right kick panel)
POWER SEATS Heated Seats Wiring Diagram for Mercedes-Benz C240 2004 List of elements for Heated Seats Wiring Diagram for Mercedes-Benz C240 2004: 21 (at base of left "b" pillar) w18 (behind right kick panel) w28/2 (under right front seat) w19 Can-b h Can-b l Comfort aac pushbutton control module Computer data lines system Fuse 10a Fuse 15a Hot at all times Interior fuse box (under left end of dash) Left front heated backrest cushion Left front heated seat cushion Left front heated seat switches Lf htd seat Nca Rf htd seat Right front heated backrest cushion Right front heated seat cushion Right front heated seat switches Upper control panel control module Power Seats Wiring Diagram for Mercedes-Benz C240 2004 List of elements for Power Seats Wiring Diagram for Mercedes-Benz C240 2004: 14 Aft Back rest switch Backrest fore/aft motor Down Driver seat adjustment switch Fore Front passenger seat adjustment switch Fuse 30a Hot in run, acc or start Rear sam control module w/ fuse & relay module (left side of trunk) Seat height switch Seat height up/down motor W18 (at base of left "b" pillar) W19 (under right front seat)
POWER TOP/SUNROOF Power Top/Sunroof Wiring Diagram for Mercedes-Benz C240 2004 List of elements for Power Top/Sunroof Wiring Diagram for Mercedes-Benz C240 2004: 27 (coupe) (right side of trunk) (left side of trunk) (sedan & wagon) w6 (sedan & wagon only) C22 Can-b h Can-b l Computer data lines system Front pre-fuse box (right rear of engine compt) Fuse 200a Hall sensor Hot at all times Hs1 Hs2 Nca Obstruction sensor Overhead control panel control module Power roof switch Rear roller blind (if equipped) Rear sam control module w/ fuse & relay module (left side of trunk) Red Roof drive system Roof motor Shd (+) Shd (-) Ukb W28/1 (behind left kick panel) W55
POWER WINDOWS Power Windows Wiring Diagram for Mercedes-Benz C240 2004 List of elements for Power Windows Wiring Diagram for Mercedes-Benz C240 2004: 40 (+) (-) 58d C11 Can-b h Can-b l Computer data lines system Driver power window switch group Fh h Fh t Fh vr Fuse 30a H (-) H sig 1 H sig 2 Hot at all times If equipped Interior fuse box (under left end of dash) Left front door control module Left front power window motor Left front window Left rear door control module (if equipped) Left rear power window motor Left rear power window switch Left rear window Rear windows lockout Red Rf w/l Right front door control module Right front power window motor Right front power window switch Right front window Right rear door control module (if equipped) Right rear power window motor Right rear power window switch Right rear window Sw group Trunk lid release W18 (at base of left "b" pillar) W19 (under right front seat) Rear Window Sun Shade Wiring Diagram for Mercedes-Benz C240 2004 List of elements for Rear Window Sun Shade Wiring Diagram for Mercedes-Benz C240 2004: 26 (behind right kick panel) w28/2 (coupe) (right side of trunk) w55 (sedan & wagon) C25 Can-b h Can-b l Comfort aac pushbutton control module Computer data lines system Front pre-fuse box (right rear of engine compt) Fuse 10a Fuse 15a Fuse 200a Fuse 7.5a Hot at all times Hto at all times Interior fuse box (under left end of dash) R blind Rear blind switch Rear roller blind motor Rear sam control module w/ fuse & relay module (left side of trunk) Rear screen blind relay (left side of trunk) Red S20 Upper control panel control module W6 (left side of trunk)
RADIO COMAND Actuation Wiring Diagram (1 of 2) for Mercedes-Benz C240 2004 List of elements for COMAND Actuation Wiring Diagram (1 of 2) for Mercedes-Benz C240 2004: 49 A-st Am/fm Amfm Amplifier module 1 (screen antenna) Amplifier module 2 C10 C11 C23 Can h Can l Can-b h Can-b l Cd changer Clear Command operating, display & control module Computer data lines system Control Ctel interface (if equipped) D2b D2b fiber optic cable connector D2b in D2b out D2b telephone & tele aid transmitter/ receiver (front of spare tire well) Diag Front pre-fuse box (right rear of engine compt) Front sam control module w/ fuse & relay module (left rear of engine compt) Fuse 200a Fzu Gps Gps antenna (if equipped) Hot at all times J10 Mute Nca Rear sam control module w/ fuse & relay module Red Sdar control unit (right rear of trunk) Voice control module (if equipped) W16/3 (left side of engine compt) W19 (under right front seat) W6 (left side of trunk) W8/1 (right side of trunk) Wake Wake up Wake-up signal connector X1/19 X1/20 X1/22 X35/71 COMAND Actuation Wiring Diagram (2 of 2) for Mercedes-Benz C240 2004 List of elements for COMAND Actuation Wiring Diagram (2 of 2) for Mercedes-Benz C240 2004: 42 (+) (-) (or pnk) Can-b h Can-b l Center cockpit speaker Clear Command operating, display & control module Computer data lines system Coupe D2b D2b in D2b out Fuse 30a Gnd Hot at all times Interior fuse box (under left end of dash) Left front door mirror speaker Left front door speaker Left rear door speaker Mic + Mic - Nca Nf-l Nf-r Pnk Right front door mirror speaker Right front door speaker Right rear door speaker Sedan Shld Sound amplifier Sound amplifier microphone Subwoofer loudspeaker W/o amp W/o amplifier W6 (left side of trunk) W7 (right side of trunk) Wagon Wake Wake up Walkman separation point Radio Wiring Diagram, with Amplifier (1 of 2) for Mercedes-Benz C240 2004 List of elements for Radio Wiring Diagram, with Amplifier (1 of 2) for Mercedes-Benz C240 2004: 59 (+) (-) A-st Am/fm Amplifier module 1 Amplifier module 2 Ant Bass module loudspeaker (sedan & wagon) C10 C11 C23 C24 Can h Can l Can-b h Can-b l Cd changer Clear Computer data lines system D2b D2b data bus circuit D2b in D2b out D2b telephone & tele aid transmitter/ receiver Diag Front pre-fuse box (right rear of engine compt) Front sam control module w/ fuse & relay module (left rear of engine compt) Fuse 200a Fzu Gps Gps antenna (if equipped) Hot at all times J10 Left front door mirror speaker Left front door speaker Left rear door speaker Mute Nca Pnk Radio Rear sam control module w/ fuse & relay module Red Right front door mirror speaker Right front door speaker Right rear door speaker Sdar control unit (right rear of trunk) Universal portable ctel interface (if equipped) Voice control system control module (at front cargo area) W16/3 (left side of engine compt) W19 (under right front seat) W6 (left side of trunk) W8/1 (right side of trunk) Wake Wake up Wake-up signal connector X1/19 X1/20 X1/22 X35/71 Radio Wiring Diagram, with Amplifier (2 of 2) for Mercedes-Benz C240 2004 List of elements for Radio Wiring Diagram, with Amplifier (2 of 2) for Mercedes-Benz C240 2004: 31 (+) (-) (or pnk) Center cockpit speaker Clear Coupe D2b D2b data bus circuit D2b in D2b out Fuse 30a Hot at all times Interior fuse box (under left end of dash) Left front door mirror speaker Left front door speaker Left rear door speaker Mic + Mic - Nca Pnk Right front door mirror speaker Right front door speaker Right rear door speaker Sedan Shld Sound amplifier microphone Subwoofer loudspeaker W6 (left side of trunk) W7 (right side of trunk) Wagon Wake Radio Wiring Diagram, without Amplifier for Mercedes-Benz C240 2004 List of elements for Radio Wiring Diagram, without Amplifier for Mercedes-Benz C240 2004: 60 (+) (-) A-st Am/fm Amplifier module 1 Amplifier module 2 Ant Bass module loudspeaker (sedan & wagon) C10 C11 C23 C24 Can h Can l Can-b h Can-b l Cd changer Clear Computer data lines system D2b D2b data bus circuit D2b in D2b out D2b telephone & tele aid transmitter/ receiver Diag Front pre-fuse box (right rear of engine compt) Front sam control module w/ fuse & relay module (left rear of engine compt) Fuse 200a Fzu Gps Gps antenna (if equipped) Hot at all times J10 Left front door mirror speaker Left front door speaker Left rear door speaker Mute Nca Out Pnk Radio Rear sam control module w/ fuse & relay module Red Right front door mirror speaker Right front door speaker Right rear door speaker Sdar control unit (right rear of trunk) Universal portable ctel interface (if equipped) Voice control system control module (at front cargo area) W16/3 (left side of engine compt) W19 (under right front seat) W6 (left side of trunk) W8/1 (right side of trunk) Wake Wake up Wake-up signal connector X1/19 X1/20 X1/22 X35/71
SHIFT INTERLOCK Shift Interlock Wiring Diagram for Mercedes-Benz C240 2004 List of elements for Shift Interlock Wiring Diagram for Mercedes-Benz C240 2004: 27 (2003 & 2004 early prod.) (2004 late prod & 2005) 30z C10 C20 C22 Can h Can l Computer data lines system Diag Electronic selector lever control module (base of gear selector lever) Esp & bas control module (left side of engine compt) Etc control module (under right side of dash) Front pre-fuse box (right rear of engine compt) Front sam control module w/ fuse & relay module (left rear of engine compt) Fuse 200a Fuse 5a Fuse 60a Hot at all times Hot in run, acc, or start Mls Pnk Red Stoplamp switch (on brake pedal bracket) W16/3 (left side of engine compt) W18 (base of left "b" pillar) W19 (under right front seat)
STARTING/CHARGING Charging Wiring Diagram for Mercedes-Benz C240 2004 List of elements for Charging Wiring Diagram for Mercedes-Benz C240 2004: 19 1.8l 175a 2.6l, 3.2l Battery C18 Can-b h Can-b l Can-c h Can-c l Computer data lines system Display Front sam control module w/ fuse & relay module c10 (left rear of engine compt) Gen Generator Instrument cluster Me-sfi (me) control module (at top left side of c2 engine) Starter motor Starter/ alternator fuse W10 (right rear of engine compt) Starting Wiring Diagram, A/T for Mercedes-Benz C240 2004 List of elements for Starting Wiring Diagram, A/T for Mercedes-Benz C240 2004: 22 (ignition/ start protection) Battery C10 C17 Can-b h Can-b l Can-c h Can-c l Computer data lines system Di control module Electronic selector lever Front pre-fuse box (right rear of engine compt) Front sam control module w/ fuse & relay module (left rear of engine compt) Fuse 15a Fuse 200a Me-sfi control module (me) (left rear of engine compt) Red Start Starter motor Starter relay W10 (right rear of engine compt) W16/3 (left side of engine compt) Starting Wiring Diagram, M/T for Mercedes-Benz C240 2004 List of elements for Starting Wiring Diagram, M/T for Mercedes-Benz C240 2004: 26 (ignition/ start protection) 1.8l 2.6l, 3.2l Battery C10 C17 Can-b h Can-b l Can-c h Can-c l Clutch pedal switch (1.8l) Clutch pedal switch (2.6l, 3.2l) Computer data lines system Di control module Front pre-fuse box (right rear of engine compt) Front sam control module w/ fuse & relay module (left rear of engine compt) Fuse 15a Fuse 200a Kup2 Me-sfi control module (me) Red Start Starter motor Starter relay W10 (right rear of engine compt) W16/3 (left side of engine compt)
SUPPLEMENTAL RESTRAINTS Supplemental Restraints Wiring Diagram (1 of 2) for Mercedes-Benz C240 2004 List of elements for Supplemental Restraints Wiring Diagram (1 of 2) for Mercedes-Benz C240 2004: 51 (pins 5 thru 28: not used) 15r Ab bf1+ Ab bf1- Ab bf2+ Ab bf2- Ab f1+ Ab f1- Ab f2+ Ab f2- C12 Can h Can l Computer data lines system Crash sig Driver seat belt buckle restraint systems switch Drvr belt Front sam control module w/ fuse & relay module (left rear of engine compt) Gs bf+ Gs bf- Gs f+ Gs f- Gs hl+ Gs hl- Gs hr+ Gs hr- Left airbags sensor (under left rear seat) Left rear etr squib (under left rear seat) Pass belt Passenger seat belt buckle restraint systems switch Passenger seat occupied & child seat recognition sensor) (under front passenger seat) Pnk Red Restraint systems control module (under center console, left of shifter) Right airbags sensor (under right rear seat) Right rear etr squib (under right rear seat) Sb hl+ Sb hl- Sb hr+ Sb hr- Sb vl+ Sb vl- Sb vr+ Sb vr- Seat occ Side W26 (under center console, left of shifter) Wb l+ Wb l- Wb r+ Wb r- Supplemental Restraints Wiring Diagram (2 of 2) for Mercedes-Benz C240 2004 List of elements for Supplemental Restraints Wiring Diagram (2 of 2) for Mercedes-Benz C240 2004: 15 Clockspring Driver airbag squib 1 (behind drivers airbag) Driver airbag squib 2 (behind drivers airbag) Driver etr squib (at base of left "b" pillar) Front passenger airbag squib 1 (behind right side of dash) Front passenger airbag squib 2 (behind right side of dash) Front passenger etr squib (at base of right "b" pillar) Left front side airbag squib (in left front door) Left rear side airbag squib (in left rear door) Left rear window airbag squib (at left "c" pillar) Pnk Right front side airbag squib (in right front door) Right rear side airbag squib (in right rear door) Right rear window airbag squib (at right "c" pillar) Steering column module
TRANSMISSION A/T Wiring Diagram for Mercedes-Benz C240 2004 List of elements for A/T Wiring Diagram for Mercedes-Benz C240 2004: 42 1-2/ 4-5 valve 1-2/4-5 vlv 2-3 shift valve 2-3 vlv 3-4 shift valve 3-4 vlv Automatic transmission program selector pushbutton C10 C22 Can (+) Can (-) Can h Can l Computer data lines system Diag Electronic selector lever control module (base of gear selector lever) Etc control module (under right side of dash) Front sam control module w/ fuse & relay module (left rear of engine compt) Gear Gear display sensor Illum Kickdn Kickdown switch (in accel pedal assembly) Lock up valve Mode Modul- ator valve Modulator vlv Pins 2 thru 28: not used Pnk Pwm vlv Rpm 2 Rpm 3 Rpm sensor Sensor ground Sensor v+ Shift valve Shift vlv Start interlock switch Temp sensor Temp/start Valve unit (right front of transmission housing) W19 (under right front seat)
TRUNK, TAILGATE, FUEL DOOR Trunk, Tailgate, Fuel Door Wiring Diagram for Mercedes-Benz C240 2004 List of elements for Trunk, Tailgate, Fuel Door Wiring Diagram for Mercedes-Benz C240 2004: 29 (coupe) (left rear of engine compt) front sam control module w/ fuse & relay module (right side of trunk) w55 (sedan & wagon) C10 C13 C21 Can h Can l Can-b h Can-b l Computer data lines system Front pre-fuse box (right rear of engine compt) Fuse 200a Hot at all times Nca Pnk/red Rear sam control module w/ fuse & relay module (left side of trunk) Red Trunk ajar Trunk emerg Trunk ext Trunk lid central locking motor Trunk lid contact switch Trunk lid emergency release switch Trunk lid external switch Trunk motor W16/3 (left side of engine compt) W6 (left side of trunk)
WARNING SYSTEMS Warning Systems Wiring Diagram for Mercedes-Benz C240 2004 List of elements for Warning Systems Wiring Diagram for Mercedes-Benz C240 2004: 33 1.8l 2.6l, 3.2l Bk wear Brake fluid & parking brake warning lamp Brake fluid indicator switch (in brake fluid reservoir) Brk fluid C19 Can h Can l Compt) Computer data lines system Driver seat belt buckle restraint systems switch Drvr belt Esp & bas control module (left side of engine compt) Front sam control module w/ fuse & relay module (left rear of engine c6 Fuse 7.5a Hot at all times Hot in run or start Instrument cluster Interior fuse box (under left end of dash) Left front brake pad contact sensor Multifunction display Nca Parking brake indicator switch (near park brake lever) Prk brk Restraint systems control module (under center console, left of shifter) Right front brake pad contact sensor Seat belt reminder lamp W16/3 (left side of engine compt) W26 (under center console, left of shifter) W28/2 (behind right kick panel) Warning buzzer
WIPER/WASHER Headlamp Washer Wiring Diagram for Mercedes-Benz C240 2004 List of elements for Headlamp Washer Wiring Diagram for Mercedes-Benz C240 2004: 18 30z C15 C20 Can h Can l Computer data lines system Front pre-fuse box (right rear of engine compt) Front sam control module w/ fuse & relay module (left rear of engine compt) Fuse 200a Fuse 60a Headlamp cleaning system (hcs) pump (left front of engine compt, on washer reservoir) Headlamp cleaning system (hcs) switch Hot at all times Lamp switch module Red Sra W16/3 (left side of engine compt) W9 (at left headlamp unit) Wiper/Washer Wiring Diagram, Sedan & Coupe for Mercedes-Benz C240 2004 List of elements for Wiper/Washer Wiring Diagram, Sedan & Coupe for Mercedes-Benz C240 2004: 52 15r 30z C10 C13 C16 C19 C22 Can-b h Can-b l Can-c h Can-c l Combination switch Computer data lines system Coolant fluid level switch (in reservoir) Di control module Esp & bas control module Front pre-fuse box (right rear of engine compt) Front sam control module w/ fuse & relay module (left rear of engine compt) Fuse 200a Fuse 20a Fuse 60a Hot at all times Int Interior fuse box (under left end of dash) Motor Nca Off Overhead control panel control module Pnk/red Rain sensor (front of headliner) Rear sam control module w/ fuse & relay module (left side of trunk) Red Relay Ss lf Ss lr Ss rf Ss rr Steering column module To wheel speed sensors W16/3 (left side of engine compt) W28/1 (behind left kick panel) W28/2 (behind right kick panel) W6 (left side of trunk) W9 (at left headlamp unit) Washer fluid level switch (in reservoir) Washer nozzle heaters Washer nozzle hose heater Washer switch Windshield washer fluid pump (on fluid reservoir) Wiper motor (left rear of engine compt) Wiper on/off relay Wiper switch Wiper/Washer Wiring Diagram, Wagon for Mercedes-Benz C240 2004 List of elements for Wiper/Washer Wiring Diagram, Wagon for Mercedes-Benz C240 2004: 61 15r 30z C10 C13 C16 C19 C20 C21 C22 Can-b h Can-b l Can-c h Can-c l Combination switch Comfort aac pushbutton control module Computer data lines system Coolant fluid level switch (in reservoir) Di control module Esp & bas control module Front pre-fuse box (right rear of engine compt) Front sam control module w/ fuse & relay module (left rear of engine compt) Fuse 15a Fuse 200a Fuse 20a Fuse 60a Hot at all times Int Interior fuse box (under left end of dash) Motor Nca Off Overhead control panel control module Pnk/red Rain sensor (front of headliner) Rear fluid switch Rear sam control module w/ fuse & relay module (left side of trunk) Rear wiper switch Red Relay Ss lf Ss lr Ss rf Ss rr Steering column module Tailgate washer fluid pump (on side of fluid reservoir) Tailgate wiper motor (in liftgate) To wheel speed sensors Upper control panel control module W16/3 (left side of engine compt) W28/1 (behind left kick panel) W28/2 (behind right kick panel) W6 (left side of trunk) W9 (at left headlamp unit) Washer fluid level switch (in reservoir) Washer nozzle heaters Washer nozzle hose heater Washer switch Windshield washer fluid pump (on fluid reservoir) Wiper motor (left rear of engine compt) Wiper on/off relay Wiper switch
