Mercedes-Benz C230 2006 - 2006 MERCEDES-BENZ C230, C280 & C350

Mercedes-Benz C230 2006 - BUZZERS, RELAYS & TIMERS

Mercedes-Benz C230 2006 BUZZERS, RELAYS & TIMERS LOCATION

Component	Location
Air Pump Relay	At left rear of engine compartment, in fuse & relay box.
Circuit 15R Relay	At left rear of engine compartment, in fuse & relay box.
Fanfare Horn System Relay (I)	On front SAM control module with fuse & relay module. See Fig. 3 .
Fan Relay Module	In front SAM control module box.
Filler Cap Polarity Reverser 1 Relay (G)	On rear SAM control module with fuse & relay module. See Fig. 2 .
Fuel Filler Cap Polarity Change 2 Relay	On rear SAM control module with fuse & relay module.
Fuel Pump Relay (A)	On rear SAM control module with fuse & relay module. See Fig. 2 .
Rear Screen Blind Relay	At left side of trunk.
Rear Window Defroster Relay (E)	On rear SAM control module with fuse & relay module. See Fig. 2 .
Relay 1, Circuit 15R	Left rear of vehicle.
Relay 2, Circuit 15R	Left rear of vehicle.
Reserve 1 Relay (D)	On rear SAM control module with fuse & relay module. See Fig. 2 .
Reserve 2 Relay (C)	On rear SAM control module with fuse & relay module. See Fig. 2 .
SEQ Pump Control Relay	At left rear of engine compartment, in fuse & relay box.
Starter Relay (S)	On front SAM control module with fuse & relay module. See Fig. 3 .
Terminal 15 Relay (P)	On front SAM control module with fuse & relay module. See Fig. 3 .
Terminal 15R Relay 1 (F)	On rear SAM control module with fuse & relay module. See Fig. 2 .
Terminal 15R Relay 2 (B)	On rear SAM control module with fuse & relay module. See Fig. 2 .
Terminal 87 Relay (Chassis) (K)	On front SAM control module with fuse & relay module. See Fig. 3 .
Terminal 87 Relay (Engine) (R)	On front SAM control module with fuse & relay module. See Fig. 3 .
Warning Buzzer	Behind instrument cluster.
Wiper ON/OFF Relay (Q)	On front SAM control module with fuse & relay module. See Fig. 3 .
Wiper Speed 1 & 2 Relay (L)	On front SAM control module with fuse & relay module. See Fig. 3 .

Mercedes-Benz C230 2006 - CIRCUIT PROTECTION DEVICES

Mercedes-Benz C230 2006 CIRCUIT PROTECTION DEVICES LOCATION

Component	Location
"E" Box	In left side of engine compartment.
Front Pre-Fuse Box (F32)	At right rear of engine compartment. See Fig. 1 .
Front SAM Control Unit W/Fuse & Relay Module (N10/1)	Left rear of engine compartment. See Fig. 1 .
Fuse & Relay Box	In left side of engine compartment, in "E" box.
Interior Fuse Box	Left end of dash.
Rear SAM Control Unit W/Fuse & Relay Module (N10/2)	Left side of trunk/cargo area. See Fig. 1 .
Right Front Footwell Fuse & Relay Box	Below right side of dash, behind kick panel.

Mercedes-Benz C230 2006 - CONTROL UNITS

Mercedes-Benz C230 2006 CONTROL UNITS LOCATION

Component	Location
Blower Regulator	On bottom of blower motor.
Brake Booster Vacuum Pump Control Module	In front passenger footwell.
Central Gateway Control Unit	Under steering column.
CTEL (TEL) Interface (Wagon)	At front of cargo area.
Distronic Control Module	In front passenger footwell, under front step plate.
Driver Front Seat Adjustment Control Module (W/Memory)	Under driver's seat.
Electronic Ignition-Starter Switch (EIS) Control Module	Right side of steering column.
Electronic Selector Lever Module Control Module	At base of gear shift assembly.
Electronic Steering Lock Control Module	On steering column.
Emergency Call System Control Unit	Front of cargo area.
ESP & BAS Control Module	At left front of engine compartment.
ETC (EGS) Control Module	Under right side of dash.
Fan Relay Module	In front SAM control module box.
Frequency Switchover Control Module	Left side of cargo area.
Front Passenger Front Seat Adjustment Control Module (W/Memory)	Under front passenger's seat.
Front Passenger Side Door Control Module	In right front door.
Front SAM Control Module With Fuse & Relay Module	At left rear of engine compartment.
Fuel Pump Relay Module	At left rear of trunk.
Left Front Door Control Module	In driver's door.
ME-SFI Control Module	At left rear of engine compartment.
NECK-PRO Head Restraint Triggering Device (N139)	Under center console. See Fig. 38 .
Portable Support Electronics (PSE) CTEL Interface Module	At right side of trunk compartment.
PTS Control Module	Behind right side of dash.
Rear A/C Pushbutton Control Module	Below center console, behind rear nozzle.
Rear Blower Motor Control Module	On rear blower motor assembly.
Rear Driver-Side Door Control Module	In left rear door.
Rear Passenger-Side Door Control Module	In right rear door.
Rear SAM Control Module With Fuse & Relay Module	At left side of trunk.
Restraint System Control Module	Under front of center console.
Roof Control Unit Control Module	In overhead console.
SDAR Control Unit (N87/5)	At right rear of trunk. See Fig. 37 .
Steering Column Module	At top of steering column.
Tele Aid (Emergency Call System) & D2B Telephone Transmitter/Receiver Control Module	At front of spare tire well.
Throttle Valve Control (M271)	At left side of engine compartment.
Traction System Hydraulic Unit	Left side of engine compartment.
Universal Portable CTEL Interface (UPCI (UHI]) Control Module	Under cargo floor.
Voice Control System Control Module (Wagon)	At front of cargo area.
Voice Recognition System (VRS) Control Module	At front of spare tire well.
WSS Control Unit (Weight Sensing System)	Under right front seat.
WSS (Weight Sensing System) Control Unit	Under right front seat.
Xenon Headlight Control Module (Left/Right)	Behind respective headlight.
Xenon Headlight Ignition Module (Left/Right)	Behind respective headlight.

Mercedes-Benz C230 2006 - MOTORS

Mercedes-Benz C230 2006 MOTORS LOCATION

Component	Location
Activated Charcoal Filter Flap Adjustment Motor	On right side of heater system air circulation unit.
Actuator Motor	Right side of engine compartment.
Automatic Dimming Interior Rearview Mirror Sensor (Forward)	At left side of engine compartment.
Backrest Fore/Aft Motor (Left)	In left front seat back.
Backrest Fore/Aft Motor (Right)	In right front seat back.
Blower Motor	Part of heating systems recirculation unit.
Brake Booster Vacuum Pump	At right front of engine compartment.
Charge Air Cooler Circulation Pump (M112.961)	Behind right side of front bumper.
CL (ZV) Motor	Part of tailgate pawl rotary tumbler switch.
Coolant Circulation Pump	Right front of engine compartment.
Driver Door CL Motor	At rear of driver's door.
Electric Air Pump (M112.961)	At right front of engine compartment.
Electric Air Pump (M113) (M33)	On front center of engine. See Fig. 34 .
Engine & A/C Electric Suction Fan With Integrated Control	At front of engine.
ESC Motor	On steering column.
Folding Mirror Motor (Left)	In driver's door mirror.
Folding Mirror Motor (Right)	In front passenger's door mirror.
Fore/Aft Motor (Left)	Under left front seat.
Fore/Aft Motor (Right)	Under right front seat.
Fresh Air Flaps Actuator	At center of heater system air circulation unit.
Fresh Air/Recirculated Air Flaps Actuator Motor (M2/5)	On right side of heater system air circulation unit. See Fig. 30 .
Front Raise/Lower Motor (Left)	Under left front seat.
Front Raise/Lower Motor (Right)	Under right front seat.
Fuel Filler Flap CL Motor	At right side of trunk.
Fuel Pump	In top of fuel tank, under right rear seat.
HCS Pump (M5/2)	In left wheelwell, on washer fluid reservoir. See Fig. 32 .
Head Restraint Raise/Lower Motor (Left)	In left front seat back.
Head Restraint Raise/Lower Motor (Right)	In right front seat back.
Height Adjustment Up/Down Motor (M20m2)	Integral to ESC (ELV)motor group. See Fig. 33 .
High-Pressure/Return Pump	At left side of engine compartment.
In-Car Temperature Sensor Fan Motor (N70m1)	In overhead panel. See Fig. 36 .
Left Blending Air Flap Actuator (M2/6)	On left side of heater system air circulation unit. See Fig. 31 .
Left Defroster Vent Flap Actuator Motor	On left end of heater system air circulation unit.
Left Footwell Flap Actuator Motor	On left side of heater system air circulation unit.
Left Fresh Air Flap Actuator	On left side of heater system air circulation unit.
Left Front ESA Motor Group	Under left front seat.
Left Front Power Window Motor	In driver's door.
Left Headlight Range Adjustment Motor	Behind left headlight.
Left Rear Door CL Motor	At rear of left rear door.
Left Rear Power Window Motor	In left rear door.
Left & Right Defroster Flaps Actuator	On left end of heater system air circulation unit.
Left & Right Footwell Flaps Actuator	On left side of heater system air circulation unit.
Longitudinal Adjustment Forward/Back Motor (M20m1)	Integral to ESC (ELV)motor group. See Fig. 33 .
Mirror Adjustment Motor (In/Out) (Left)	In driver's door mirror.
Mirror Adjustment Motor (In/Out) (Right)	In front passenger's door mirror.
Mirror Adjustment Motor (Up/Down) (Left)	In driver's door mirror.
Mirror Adjustment Motor (Up/Down) (Right)	In front passenger's door mirror.
Multicontour Seat Pneumatic Pump (Wagon) (M40)	Left side of cargo area. See Fig. 35 .
Radio Additional Fan	Front of center console.
Rear Blower Motor (M2/1)	Below rear of center console. See Fig. 29 .
Rear Raise/Lower Motor (Left)	Under left front seat.
Rear Raise/Lower Motor (Right)	Under right front seat.
Rear Sun Shade Motor	At right rear of sun roof opening.
Rear Window Blind Motor	At right rear of sun roof opening.
Recirculated Air Flap Actuator	At right front of engine.
Right Blending Air Flap Actuator	On right side of heater system air circulation unit.
Right Defroster Vent Flap Actuator Motor	On right side of heater system air circulation unit.
Right Footwell Flap Actuator Motor	On right side of heater system air circulation unit.
Right Fresh Air Flap Actuator	At center of heater system air circulation unit.
Right Front Door CL Motor	At rear of right front door.
Right Front ESA Motor Group	Under right front seat.
Right Front Power Window Motor	In right front door.
Right Headlight Range Adjustment Motor	Behind right headlight.
Right Rear Door CL Motor	At rear of right rear door.
Right Rear Power Window Motor	In right rear door.
Roller Sun Blind Motor	Center of roof.
Roof Drive System (203.7)	At front center of roof.
Roof Motor	At front center of roof.
Sliding/Pop-Up Roof Drive Assembly	At center front of roof, above dome light.
Sliding/Pop-Up Roof Motor	At center, front of roof.
Starter	Left rear of engine.
Tailgate Washer Pump (M5/3)	In left wheelwell, on side of washer fluid reservoir. See Fig. 32 .
Tailgate Wiper Motor	In liftgate, behind trim.
Telescopic Adjustment Motor (In/Out)	On steering column.
Throttle Valve Actuator (M112.961)	At rear of engine.
Throttle Valve Actuator (M271)	On front left side of engine.
Throttle Valve Control Element	On throttle body.
Tilt Adjustment Motor (Up/Down)	On steering column.
Trunk Lid CL Motor	In center rear of trunk lid.
Up/Down Motor (Left)	Under driver's seat.
Up/Down Motor (Right)	Under right front seat.
Windshield Washer Fluid Pump (M5/1)	In left front wheelwell, on washer fluid reservoir. See Fig. 32 .
Wiper Motor	At left rear of engine compartment.

Mercedes-Benz C230 2006 - SENDING UNITS & SENSORS

Mercedes-Benz C230 2006 SENDING UNITS & SENSORS LOCATION

Component	Location
Accelerator Pedal Sensor	Top of accelerator pedal assembly.
Actual Value Potentiometer (Sliding Contact 1)	Right side of engine compartment.
Air Humidity Sensor	Near right front shock tower.
Altitude Sensor (M271)	On top of engine.
Ambient Light Sensor	At front of headliner.
Ambient Pressure Sensor	At left side of engine compartment.
Ambient Temperature Display Temperature Sensor	Right front of vehicle.
ATA (EDW) Inclination Sensor	Left side of trunk.
ATA Tow Sensor	At left side of trunk.
Automatic Climate Control Multifunction Sensor	In fresh air inlet, at right rear of engine compartment.
Automatic Climate Control Sun Sensor	At right rear of engine compartment.
Automatic Dimming Interior Rearview Mirror Sensor (Back)	At top right side of interior rearview mirror.
Automatic Dimming Interior Rearview Mirror Sensor (Forward)	At bottom right side of interior rearview mirror.
Automatic Light Switch Daylight Sensor	Top center of front windshield.
Belt Tension Sensor	In left front footwell.
C-AAC (K-KLA) Multifunction Sensor (B31)	Right rear of engine compartment. See Fig. 24 .
C-AAC Sun Sensor (4)	Center rear of engine hood.
Camshaft Hall Effect Sensor	On right front of engine.
Charge Air Pressure Sensor (AMG) (M112.961)	At center rear of engine compartment.
Charge Air Temperature Sensor (M112.961)	Rear center of engine compartment.
Charge Air Temperature Sensor (M271)	On top of engine.
Coolant Temperature Sensor (M112.961)	At right front of engine.
Coolant Temperature Sensor (M272)	Left rear of engine.
Crankshaft Hall Sensor (M272)	At left rear of engine.
Crankshaft Position Sensor (M112.961)	On left rear of engine.
Distance Warning Radar Sensor	Behind right side of front bumper.
Drive Actual Value Potentiometer	Right side of engine compartment.
Driver-Side Frontal Acceleration Sensor	Left front of engine compartment.
Driver-Side Frontal Acceleration Sensor	Left front of engine compartment.
ECT Sensor	On front center of engine.
EGR Pressure (Vacuum) Transducer	At rear of right cylinder bank.
ESP Brake Pressure Hall Sensor (M271)	At right front of engine compartment.
ESP Brake Pressure Sensor 1	In left rear of engine compartment.
ESP Brake Pressure Sensor 2	In left rear of engine compartment.
ESP Lateral Acceleration Sensor	In trunk, in front of spare tire well.
ESP Rotational Speed Sensor	In trunk, at front of spare tire well.
ESP Yaw Rate Sensor	Front center of trunk.
Evaporator Temperature Sensor (B10/6)	Downstream of left evaporator, in evaporator housing.
Exhaust Camshaft Hall Sensor (M271)	Top left side of engine.
Front Axle Sensor (Headlight Range Adjustment)	Right front wheel house.
Front Axle Sensor (Headlight Range Adjustment)	At right front side of front subframe.
Fuel Tank Pressure Sensor (B4/3)	Under left rear seat. See Fig. 22 .
Gear Display Sensor	Next to gear lever.
Hall Sensor 1 (Roller Sun Blind)	Integral to roller sun blind drive unit.
Hall Sensor 1, SR	At center front of roof, above dome light.
Hall Sensor 2 (Roller Sun Blind)	Integral to roller sun blind drive unit.
Hall Sensor 2, SR	At center front of roof, above dome light.
Hot Film MAF Sensor/Intake Air Temperature Sensor (M112)	At center rear of intake manifold.
Hot Film MAF Sensor (M271)	On top of engine.
In-Car Temperature Sensor (N70b1)	In overhead panel. See Fig. 36 .
Intake Air Temperature Sensor (M271)	Left front of engine compartment.
Intake Camshaft Hall Sensor (M271)	Top left side of engine.
Intake Manifold Pressure Sensor (M271)	At left rear of engine.
Knock Sensor (M111)	On left rear of engine.
Left Center Sensor (Front Bumper)	Behind left center of front bumper.
Left Door Air Bag Sensor	Under left rear seat.
Left Exhaust Camshaft Hall Sensor (M272)	Front of left cylinder bank.
Left Exhaust Camshaft Hall Sensor (M272)	Front of right cylinder bank.
Left Front Brake Pad Contact Sensor	At left front wheel.
Left Fuel Level Sensor	Under left rear seat.
Left Inner Sensor (Front Bumper)	Behind left center of front bumper.
Left Inner Sensor (Rear Bumper)	Behind left center of rear bumper.
Left Intake Camshaft Hall Sensor (M272)	Front of left cylinder bank.
Left Intake Manifold Tumble Flap Position Sensor (M272)	Left rear of engine compartment.
Left Knock Sensor No. 2 (M272) (A16/2)	Between cylinder banks. See Fig. 21 .
Left Outer Sensor (Front Bumper)	Behind left end of front bumper.
Left Outer Sensor (Rear Bumper)	Behind left end of rear bumper.
Left O2S Downstream TWC (KAT) (M112.961)	Under left front of vehicle, in exhaust.
Left O2 Sensor Upstream TWC (KAT) (M112.961)	Under left front of vehicle, in exhaust.
Left O2S 1 (Before TWC)	Near left front wheel, on left catalytic converter.
Left O2S 2 (After TWC)	Near left front wheel, on left catalytic converter.
Left O2S 2 Connector (After TWC)	Near left front wheel, on left catalytic converter.
Left Rear Window Glass Breakage Sensor (Wagon)	Behind left rear quarterpanel.
Left/Right Front Brake Lining Wear Sensors	At respective front disc brake assemblies.
Left Side Air Bag & Window Air Bag Sensor	Under left rear seat.
Light Activation Sensor Assembly	At front of headliner.
Membrane Travel Sensor (BAS)	At left rear of engine compartment.
Obstruction Sensor Unit	At center front of roof, above dome light.
Oil Sensor (Oil Level, Temperature & Quality) (M112.961)	Lower right side of engine.
Oil Sensor (Oil Level, Temperature & Quality) (M271)	Lower left side of engine.
Outside Temperature Indicator Temperature Sensor	Behind right side of front bumper.
O2 Sensor 1 Upstream TWC (KAT) (G3/2)	At right side of transmission. See Fig. 27 .
O2 Sensor 2 Downstream TWC (KAT) (M271)	At right rear of engine compartment.
O2S 1 (Before TWC)	Under right front of vehicle, in exhaust.
O2S 2 (After TWC) (M111)	Under right side of vehicle, in exhaust.
Passenger Seat Occupied & Automatic Child Seat Recognition Sensor	Under front passenger seat.
Passenger-Side Frontal Acceleration Sensor	Right front of engine compartment.
Passenger-Side Frontal Acceleration Sensor	Right front of engine compartment.
Pedal Value Sensor	Above throttle pedal assembly.
Pressure Sensor (B48/4)	Under right front seat.
Pressure Sensor (M271)	At left rear of engine compartment.
Pressure Sensor (M271)	On left rear of engine.
PTS Sensor Assembly (Front Bumper)	Behind left side of front bumper.
PTS Sensor Assembly (Rear Bumper)	Behind left end of rear bumper.
Rain/Light Sensor	At front of headliner.
Rain Sensor	At front of headliner.
Rear Axle Sensor (Headlight Range Adjustment)	Right side of rear axle.
Rear Window Glass Breakage Sensor	At lower center of rear window.
Recirculated Air Flap Actual Value Potentiometer	Right side of engine compartment.
Refrigerant Pressure Sensor & Temperature Sensor (M112.961)	At bottom left side of radiator condenser.
Right Center Sensor (Front Bumper)	Behind right center of front bumper.
Right Door Air Bag Sensor	Under right rear seat.
Right Front Brake Pad Contact Sensor	At right front wheel.
Right Fuel Level Sensor	Under right rear seat.
Right Inner Sensor (Front Bumper)	Behind right center of front bumper.
Right Inner Sensor (Rear Bumper)	Behind right center of rear bumper.
Right Intake Manifold Tumble Flap Position Sensor (M272)	Between engine cylinder banks.
Right Knock Sensor No. 1 (M272) (A16/1)	Between cylinder banks. See Fig. 21 .
Right Outer Sensor (Front Bumper)	Behind right end of front bumper.
Right Outer Sensor (Rear Bumper)	Behind right end of rear bumper.
Right O2S Downstream TWC (KAT) (M112.961)	Under right front of vehicle, in exhaust.
Right O2 Sensor Upstream TWC (KAT) (M112.961)	Under right front of vehicle, in exhaust.
Right O2S 1 (Before TWC)	Near right front wheel, on right catalytic converter.
Right O2S 2 (After TWC)	Near right front wheel, on right catalytic converter.
Right Rear Brake Pad Contact Sensor	At right rear wheel.
Right Rear Window Glass Breakage Sensor (Wagon)	Behind right rear quarterpanel.
Right Side Air Bag & Window Air Bag Sensor	Under right rear seat.
Road Ahead Light Sensor	At front of headliner.
RPM Sensor 2	On transmission valve unit.
RPM Sensor 3	On transmission valve unit.
Steering Angle Sensor	At top of steering column.
Transmission Oil Temperature Sensor	In transmission valve unit.
Turn Rate & Lateral Acceleration Sensor (203.2)	At front of cargo area.
TWC (KAT) Temperature Sensor (B19)	Downstream of catalytic converter. See Fig. 23 .
Wheel Speed Sensor (Left Front) (L6/1)	Behind left front wheel. See Fig. 28 .
Wheel Speed Sensor (Left Rear) (L6/3)	Behind left rear wheel. See Fig. 28 .
Wheel Speed Sensor (Right Front)	Behind right front wheel. See Fig. 28 .
Wheel Speed Sensor (Right Rear)	Behind right rear wheel. See Fig. 28 .
Yaw Rate & Lateral Acceleration Sensor	Right rear of vehicle.

Mercedes-Benz C230 2006 - SOLENOIDS & SOLENOID VALVES

Mercedes-Benz C230 2006 SOLENOIDS & SOLENOID VALVES LOCATION

Component	Location
Activated Charcoal Canister Shutoff Valve	Above right rear wheelwell.
Adjustable Camshaft Timing Solenoid (M271)	At right front of engine.
Air Pump Switchover Valve (M112.961)	At right front of engine.
Air Pump Switchover Valve (M271)	At top of engine.
AIR Pump Switchover Valve (V6)	On right front of engine.
Exhaust Camshaft Solenoid (M271)	At right front of engine.
Front Axle Switchover Solenoid Valve	At left front of engine compartment.
Front Axle Vacuum Solenoid Valve	At left front of engine compartment.
Fuel Injector Cylinder 1 (M112.961)	At top right of engine.
Fuel Injector Cylinder 2 (M112.961)	At top right of engine.
Fuel Injector Cylinder 3 (M112.961)	At top right of engine.
Fuel Injector (1st Cylinder) (M271)	At top left of engine.
Fuel Injector (2nd Cylinder) (M271)	At top left of engine.
Fuel Injector (3rd Cylinder) (M271)	At top left of engine.
Fuel Injector (4th Cylinder) (M271)	At top left of engine.
Intake Camshaft Solenoid (M271)	At left front of engine.
Left Front Axle Solenoid Valve (Hold)	At left front of engine compartment.
Left Front Axle Solenoid Valve (Release)	At left front of engine compartment.
Left High Beam Solenoid (E1l1)	Behind left headlight assembly. See Fig. 25 .
Left Rear Axle Solenoid Valve (Hold)	At left front of engine compartment.
Left Rear Axle Solenoid Valve (Release)	At left front of engine compartment.
Modulating Pressure Regulating Solenoid Valve	On transmission valve unit.
Purge Control Valve	In left rear corner of engine compartment.
PWM Solenoid Valve (Torque Converter Lock-Up)	On transmission valve unit.
Rear Axle Switchover Solenoid Valve	At left front of engine compartment.
Rear Axle Vacuum Solenoid Valve	At left front of engine compartment.
RHR Release Valve	Left side of trunk.
Right Front Axle Solenoid Valve (Hold)	At left front of engine compartment.
Right Front Axle Solenoid Valve (Release)	At left front of engine compartment.
Right High Beam Solenoid	Behind right headlight assembly.
Right Rear Axle Solenoid Valve (Hold)	At left front of engine compartment.
Right Rear Axle Solenoid Valve (Release)	At left front of engine compartment.
Right Rear Release Valve	At left side of trunk.
Shifting Induction Pipe Switchover Valve	On top front center of engine.
Shift Pressure Regulating Solenoid Valve	On transmission valve unit.
Solenoid Valve (BAS)	Integral to brake booster.
SPS Solenoid Valve	Under vehicle, on steering rack.
Super Charger Magnetic Clutch (M112.961)	At front of engine.
Valve (Cylinder 1) (V6)	At top of right cylinder bank.
Valve (Cylinder 2) (V6)	At top of right cylinder bank.
Valve (Cylinder 3) (V6)	At top of right cylinder bank.
Valve Unit (ETC)	At right front of transmission housing.
1-2/4-5 Shift Solenoid Valve	On transmission valve unit.
2-3 Shift Solenoid Valve	On transmission valve unit.
3-4 Shift Solenoid Valve	On transmission valve unit.

Mercedes-Benz C230 2006 - SWITCHES

Mercedes-Benz C230 2006 SWITCHES LOCATION

Component	Location
ATA (EDW) Hood Switch	Right front of engine compartment.
Back-Up Lamp Switch (M/T) (S16/2)	On right rear of transmission. See Fig. 39 .
Brake Fluid Indicator Switch	In brake fluid reservoir.
Clutch Pedal Switch	At top of clutch pedal assembly.
Coolant Level Indicator Switch	Right front of engine compartment.
Driver Seat Backrest Release Microswitch	In left front seat.
Driver Seat Height Release Microswitch	Left side of driver's seat.
ECL/Windshield Washer Fluid Level Switch	In windshield washer reservoir.
Engine Hood Switch (ATA)	At left front of engine compartment.
Front Passenger Seat Height Release Microswitch	Right side of front passenger's seat.
Kickdown Switch	Incorporated into accelerator pedal assembly.
Left Front Door Contact Switch	At left "B" pillar.
Left Front Seat Belt Buckle Switch	In driver's seat belt buckle.
Left Rear Door Contact Switch	At left "C" pillar.
Oil Level Switch (M272) (S43)	Left side of oil pan. See Fig. 40 .
Parking Brake Indicator Switch	On parking brake support bracket.
Passenger-Side Seat Belt Buckle Restraint Systems Switch	In passenger-side seat belt buckle.
Pawl Rotary Tumbler Switch	Center rear of tailgate.
Release Switch (BAS)	Integral to brake booster.
Right Front Door Contact Switch	At right "B" pillar.
Right Front Seat Belt Buckle Switch	In passengers seat belt buckle.
Right Rear Door Contact Switch	At right "C" pillar.
Starter Lock-Out Contact	On transmission valve unit.
Stoplight Switch	On brake pedal support.
Trunk Lamp Switch	At center rear of trunk lid.
Trunk Lid Contact Switch	At center rear of trunk lid.
Trunk Lid Emergency Release Switch (203.0)	At rear of trunk lid.
Trunk Lid Exterial Operation Switch (203.0)	In trunk lid.
Trunk Lid Rotary Tumbler Microswitch (Wagon) Tailgate	At center of trunk lid.
Windshield Washer Fluid Level Indicator Switch (S42)	Left front wheelwell, in washer bottle. See Fig. 32 .

Mercedes-Benz C230 2006 - MISCELLANEOUS

Mercedes-Benz C230 2006 MISCELLANEOUS LOCATION

Component	Location
A/C Compressor	At top right front of engine.
Actual Value Potentiometer (Sliding Contact 1)	At right side of engine compartment.
Actual Value Potentiometer (Sliding Contact 2)	At right side of engine compartment.
Alarm Horn	At rear of right front wheelwell.
Amplifier Module 1, Screen Antenna (203.2)	Left rear of roof.
Amplifier Module 2, Screen Antenna (203.2)	Top left of tailgate.
Audio Amplifier	At right rear of cargo area.
Auxiliary Battery (G1/1)	Left front of trunk. See Fig. 26 .
Battery	Next to right front shock tower.
Blower Regulator	Under right side of dash.
Bluetooth Antenna	Beside right rear seat.
Brake Booster (BAS)	At left rear of engine compartment.
CD Changer	In glove compartment.
CTEL Antenna (203.2)	At top center of tailgate.
CTEL (TEL)Interface (Wagon)	Front of cargo area.
Cylinder 1 Ignition Coil (M112.961)	At right side of engine compartment.
Cylinder 2 Ignition Coil (M112.961)	At right side of engine compartment.
Cylinder 3 Ignition Coil (M112.961)	At right side of engine compartment.
Cylinder 4 Ignition Coil (M112.961)	At left side of engine compartment.
Cylinder 5 Ignition Coil (M112.961)	At left side of engine compartment.
Cylinder 6 Ignition Coil (M112.961)	At left side of engine compartment.
Data Link Connector X11/4	Under left side of dash.
Drive Actual Value Potentiometer	At right side of engine compartment.
Driver Air Bag Ignition Squib 1	Behind driver's air bag.
Driver Air Bag Ignition Squib 2	Behind driver's air bag.
Driver ETR (GUS) Ignition Squib	At base of left "B" pillar.
D2B Telephone & TELE AID Receiver (Wagon)	At front of cargo area.
Emergency Call System Antenna Splitter	Left side of rear bumper.
Emergency Call System Left Backup Antenna	Left side of rear bumper.
Emergency Call System Right Backup Antenna	Right side of rear bumper.
E-Net Compensator	At right side of trunk.
Fanfare Horns	At center front of engine compartment.
Fanfare Horns & Air Bag Clock Spring Contact	Inside steering wheel.
Front Passenger Air Bag Ignition Squib 1	Behind right side of dash.
Front Passenger Air Bag Ignition Squib 2	Behind right side of dash.
Front Passenger ETR (GUS) Squib	At base of right "B" pillar.
Generator (V6)	At right front of engine.
GPS Antenna	At center rear of roof.
GPS Antenna (Wagon)	At top left of tailgate.
Horn/Air Bag Clock Spring Contact	At top of steering column.
Ignition Coil (Cylinder 1) (M271)	At top of engine.
Ignition Coil (Cylinder 1) (V6)	At top right side of engine.
Ignition Coil (Cylinder 2) (M271)	At top of engine.
Ignition Coil (Cylinder 2) (V6)	At top right side of engine.
Ignition Coil (Cylinder 3) (M271)	At top of engine.
Ignition Coil (Cylinder 3) (V6)	At right side of engine.
Ignition Coil (Cylinder 4)(M271)	At top of engine.
Ignition Coil (Cylinder 4) (V6)	At left side of engine.
Ignition Coil (Cylinder 5) (V6)	At left side of engine.
Ignition Coil (Cylinder 6) (V6)	At left side of engine.
Interior Motion Sensor Transmitter & Receiver	Under center of headliner.
Left Backrest Heater Element	In left front seat back.
Left Front Door Air Bag Squib	In left front door.
Left Front IR Receiver Unit	At rear of left front door.
Left Front Side Air Bag Ignition Squib	In left front door.
Left Rear ETR Ignition Squib	Under left rear seat.
Left Rear Side Air Bag Ignition Squib	In left rear door.
Left Rear Window Air Bag Ignition Squib	At left rear "C" pillar.
Left Rear Window Air Bag Ignition Squib (Wagon)	Near top of left "C" pillar.
Left Seat Heater Element	Under left front seat.
Phone/CTEL/STH Radio Remote Control Antenna Splitter	Right "C" pillar.
Portable CTEL	At front of center console, inside ashtray compartment.
Portable CTEL Antenna Amplifier (Wagon)	At front of cargo area.
Radio Interference Suppression Capacitor (M271)	Top of engine.
Radio Interference Suppression Capacitor 1 (M112)	Top left side of engine.
Radio Interference Suppression Capacitor 2 (M112)	Top left side of engine.
Rear Window Antenna Amplifier Module No. 3	At center rear of roof.
Rear Window Antenna Amplifier Module No. 4	At center rear of roof.
Recirculated Air Flap Actual Value Potentiometer	At right side of engine compartment.
RF Backrest Heater Element	In right front seat back.
RF Seat Heater Element	Under right front seat.
Right Front Door Air Bag Squib	In right front door.
Right Front IR Receiver Unit	At rear of right front door.
Right Front Side Air Bag Ignition Squib	In right front door.
Right Rear ETR Ignition Squib	Under right rear seat.
Right Rear Side Air Bag Ignition Squib	In right rear door.
Right Rear Window Air Bag Ignition Squib	At right "C" pillar.
Right Rear Window Air Bag Ignition Squib (Wagon)	Near top of right "C" pillar.
Screen Antenna Amplifier Module No. 1 (Wagon)	At left rear of roof.
Screen Antenna Amplifier Module No. 2 (Wagon)	At top left of tailgate.
Sound Amplifier Microphone	Right of interior rearview mirror, in roof.
TELE Aid (Emergency Call System) Spare Antenna	Behind right side of rear bumper.
TELE Aid Primary Antenna (Except Wagon)	At center rear of roof.
TELE Aid Primary Antenna (Wagon)	In tailgate.
Telephone Interface	Front center of trunk.
Telephone & TELE AID Transmitter/Receiver	Left side of trunk.
TV Tuner	At right rear side wall of trunk.

Mercedes-Benz C230 2006 - CONNECTORS

Mercedes-Benz C230 2006 CONNECTORS LOCATION

Component	Location
X1/16 (1 Pin)	At right "C" pillar. See Fig. 13 .
X1/19 (2 Pin)	At left "C" pillar.
X1/20 (2 Pin)	At left "C" pillar.
X1/22 (6 Pin)	At left "C" pillar.
X8/18 (1 Pin)	At left side of trunk.
X15 (4 Pin)	Under left front of vehicle.
X18/23 (3 Pin)	Under roof console.
X18/33 (2 Pin)	Left front of engine compartment. See Fig. 14 .
X18/35 (2 Pin)	Behind right kick panel. See Fig. 16 .
X18/36 (2 Pin)	Behind right kick panel. See Fig. 16 .
X18/37 (4 Pin)	At right "C" pillar.
X23/11 (2 Pin)	Left side of trunk.
X25/4 (6 Pin)	At left "B" pillar.
X25/9 (2 Pin)	Above right rear wheelwell.
X26/2 (1 Pin)	At left rear of engine compartment.
X26/22 (4 Pin)	Behind left kick panel.
X28/12 (10 Pin)	Under center console, left of shifter.
X28/26 (4 Pin)	On engine hood.
X30/4 (2 Pin)	Behind right kick panel.
X30/6 (2 Pin)	Under left side of dash.
X30/7 (2 Pin)	Behind left kick panel.
X30/8 (10 Pin)	Behind right kick panel.
X30/12 (1 Pin)	Behind left kick panel.
X35/1 (4 Pin)	Behind left kick panel.
X35/2 (4 Pin)	Behind right kick panel. See Fig. 16 .
X35/3 (4 Pin)	At left "B" pillar.
X35/4 (4 Pin)	At right "B" pillar.
X36/3 (2 Pin)	Under left rear seat. See Fig. 15 .
X39/36 (4 Pin)	Behind left kick panel. See Fig. 16 .
X39/43 (14 Pin)	Under right rear seat. See Fig. 17 .
X39/45 (3 Pin)	Behind right side of glove compartment. See Fig. 18 .
X39/47 (2 Pin)	Under front of center console. See Fig. 19 .
X39/48 (6 Pin)	Under center console, left of shifter.
X55/3 (4 Pin)	Under left front seat.
X55/4 (4 Pin)	Under right front seat.
X58/3 (3 Pin)	At right "C" pillar.
X62/6 (4 Pin)	In right front wheelwell.
X62/7 (4 Pin)	In left front wheelwell.
X62/8 (4 Pin)	In trunk, in front of spare tire well.
X63/4 (2 Pin)	Behind left kick panel. See Fig. 20 .
X85/9 (2 Pin)	At left kick panel.
X88/7 (2 Pin)	Front of left front wheelwell.
X88/11 (2 Pin)	On engine hood.

Mercedes-Benz C230 2006 - GROUNDS

Mercedes-Benz C230 2006 GROUNDS LOCATION

Component	Location
W6	Left side of trunk.
W7	Right side of trunk.
W8/1	Top left side of tailgate.
W9	Behind left headlight. See Fig. 32 .
W10	Right rear of engine compartment. See Fig. 4 .
W11	Left side of engine compartment. See Fig. 5 .
W11w1	On left cylinder bank.
W11w2	On right cylinder bank.
W11/3	Left front of engine.
W16/3	Left rear of engine compartment. See Fig. 6 .
W16/4	Right rear of engine compartment. See Fig. 7 .
W16/5	Left rear of engine compartment. See Fig. 8 .
W18	Under driver's seat. See Fig. 9 .
W19	Under right front door sill. See Fig. 10 .
W26	Under center console, near shift lever. See Fig. 11 .
W28/1	Under left front door sill. See Fig. 9 .
W29/3	At left "C" pillar. See Fig. 9 .
W55	Left side of trunk, near rear SAM. See Fig. 12 .

Mercedes-Benz C230 2006 - SPLICES

Mercedes-Benz C230 2006 SPLICES LOCATION

Component	Location
Z3/12	Above right rear wheelwell.
Z3/29	At left front of engine compartment.
Z3/31	At left side of transmission tunnel.
Z4/3	In trunk, in front of spare tire well.
Z6	At front of engine compartment.
Z6/1	Inside right side of tailgate.
Z6/8	At left rear of engine compartment.
Z6/26	Left rear of engine compartment.
Z6/27	Left rear of engine compartment.
Z6/30	Center of tailgate.
Z7	At right "C" pillar.
Z7/3z2 (M112)	On top front of engine.
Z7/35z1 (M112)	Left rear of engine.
Z7/36 (M112)	Left side of engine.
Z7/41 (M271)	At left rear of engine compartment.
Z7/43 (M271)	At left rear of engine compartment.
Z7/43z1 (M271)	At left rear of engine compartment.
Z7/43z2 (M271)	At left rear of engine compartment.
Z20/1	Under front of center console, left of shifter.
Z56/8	At right rear corner of engine compartment.
Z81	Under left front of center console.
Z81/4	Under left front of center console.
Z83/6	Top left side of tailgate.
Z85	Left rear of engine compartment.
Z87/22	Above right rear wheelwell.
Z87/23	Above right rear wheelwell.