Mercedes-Benz C240 2005 - 2005 MERCEDES-BENZ C230, C240 & C320

Mercedes-Benz C240 2005 - BUZZERS, RELAYS & TIMERS

Mercedes-Benz C240 2005 BUZZERS, RELAYS & TIMERS LOCATION

Component	Location
Air Pump Relay	At left rear of engine compartment, in fuse & relay box.
Circuit 15 Relay	At left rear of engine compartment, in fuse & relay box.
Circuit 15R Relay	At left rear of engine compartment, in fuse & relay box.
Circuit 15R Relay 1	On rear SAM control module with fuse & relay module.
Circuit 15R Relay 2	On rear SAM control module with fuse & relay module.
Circuit 87 Relay (Chassis)	At left rear of engine compartment, in fuse & relay box.
Circuit 87 Relay (Engine)	At left rear of engine compartment, in fuse & relay box.
Fan Relay Module	In front SAM control module box.
Fuel Filler Cap Polarity Change 1 Relay	On rear SAM control module with fuse & relay module.
Fuel Filler Cap Polarity Change 2 Relay	On rear SAM control module with fuse & relay module.
Fuel Pump Relay Module	Left rear of vehicle.
Rear Screen Blind Relay	At left side of trunk.
Rear Window Defroster Relay	On rear SAM control module with fuse & relay module.
Relay 1, Circuit 15R	Left rear of vehicle.
Relay 2, Circuit 15R	Left rear of vehicle.
Reserve 1 Relay	On rear SAM control module with fuse & relay module.
Reserve 2 Relay	On rear SAM control module with fuse & relay module.
SEQ Pump Control Relay	At left rear of engine compartment, in fuse & relay box.
Starter Relay	At left rear of engine compartment, in fuse & relay box.
Wiper ON And OFF Relay	At left rear of engine compartment, in fuse & relay box.
Wiper Relay (Stage 1-2)	At left rear of engine compartment, in fuse & relay box.

Mercedes-Benz C240 2005 - CIRCUIT PROTECTION DEVICES

Mercedes-Benz C240 2005 CIRCUIT PROTECTION DEVICES LOCATION

Component	Location
"E" Box	In left side of engine compartment.
Front Pre-Fuse Box	At right rear of engine compartment.
Fuse & Relay Box	In left side of engine compartment, in "E" box.
Interior Fuse Box	Left end of dash.
Rear SAM Control Module With Fuse And Relay Module	Left side of trunk/cargo area.
Right Front Footwell Fuse & Relay Box	Below right side of dash, behind kick panel.

Mercedes-Benz C240 2005 - CONTROL UNITS

Mercedes-Benz C240 2005 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 ESA Control Module (With 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 Locking Control Module	On steering column.
Emergency Call System Control Unit	Front of cargo area.
ESP/SPS/BAS Control Module	At left side of engine compartment. See Fig. 3 .
ETC Control Module	Under right side of dash.
Fan Relay Module	In front SAM control module box.
Frequency Switchover Control Module	At right side of trunk.
Front Passenger Side Door Control Module	In right front door.
Front SAM Control Module With Fuse & Relay Module	At left rear of engine compartment. See Fig. 5 .
Fuel Pump Relay Module	At left rear of trunk.
Left Front Door Control Module	In driver's door.
ME-SFI (ME) Control Module (M112.961)	At left rear of engine compartment.
ME-SFI (ME) Control Module (M271)	At top left side of engine. See Fig. 7 .
Passenger Front ESA Control Module (With Memory)	Under front passenger's seat.
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 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. See Fig. 5 .
Restraint System Control Module	Under front of center console.
Roof Control Unit Control Module	In overhead console.
SDAR Control Unit	At right rear of trunk.
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. See Fig. 3 .
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 (Weight Sensing System) Control Unit	Under right front seat.
Xenon Headlamp Control Module (Left/Right)	Behind respective headlamp.
Xenon Headlamp Ignition Module (Left/Right)	Behind respective headlamp.

Mercedes-Benz C240 2005 - MOTORS

Mercedes-Benz C240 2005 MOTORS LOCATION

Component	Location
Active 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	On right side of heater system air circulation unit.
Brake Booster Vacuum Pump	At right front of engine compartment.
Charge Air Cooler Circulation Pump (M112.961)	Behind right side of front bumper.
Coolant Circulation Pump	In right rear 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 (V6)	On front center of engine. See Fig. 1 .
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	On right side of heater system air circulation unit.
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	In left front of engine compartment, on washer fluid reservoir.
Head Restraint Raise/Lower Motor (Left)	In left front seat back.
Head Restraint Raise/Lower Motor (Right)	In right front seat back.
High-Pressure/Return Pump	At left side of engine compartment. See Fig. 3 .
In-Car Temperature Sensor Fan Motor	In overhead panel.
Left Blending Air Flap Actuator	On left side of heater system air circulation unit.
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 Headlamp Range Adjustment Motor	Behind left headlamp.
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.
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)	Left side of cargo area.
Radio Additional Fan	Front of center console.
Rear Blower Motor	Below rear center console.
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.
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 Headlamp Range Adjustment Motor	Behind right headlamp.
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.
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.
Sun Blind Motor	At right rear of sun roof opening.
Tailgate Washer Pump	In left side of engine compartment, on side of washer fluid reservoir.
Tailgate Wiper Motor	In liftgate, behind trim.
Telescopic Adjustment Motor (In/Out)	On steering column.
Throttle Valve Actuator (M112.961)	At rear of engine. See Fig. 2 .
Throttle Valve Actuator (M271)	On front left side of engine. See Fig. 7 .
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 Pump	In left front of engine compartment, on washer fluid reservoir.
Wiper Motor	At left rear of engine compartment.

Mercedes-Benz C240 2005 - SENDING UNITS & SENSORS

Mercedes-Benz C240 2005 SENDING UNITS & SENSORS LOCATION

Component	Location
ABS Lateral Acceleration Sensor	In trunk, in front of spare tire well.
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. See Fig. 7 .
Ambient Light Sensor	At front of headliner.
Ambient Pressure Sensor	At left side of engine compartment.
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.
Belt Tension Sensor	Right front door sill.
Camshaft Hall Effect Sensor	On right front of engine. See Fig. 1 .
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. See Fig. 7 .
Coolant Temperature Sensor (M112.961)	At right front of engine. See Fig. 1 .
Coolant Temperature Sensor (M271)	At top right side of engine. See Fig. 6 .
Crankshaft Position Sensor (M112.961)	On left rear of engine. See Fig. 1 .
Crankshaft Position Sensor (M271)	At left rear of engine. See Fig. 7 .
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.
ECT Sensor	On front center of engine.
EGR Pressure (Vacuum) Transducer	At rear of right cylinder bank. See Fig. 2 .
ESP Brake Pressure Hall Sensor (M271)	At right front of engine compartment.
ESP Brake Pressure Sensor 1	In left rear of engine compartment. See Fig. 5 .
ESP Brake Pressure Sensor 2	In left rear of engine compartment. See Fig. 5 .
ESP Rotational Speed Sensor	In trunk, at front of spare tire well.
Evaporator Temperature Sensor	Downstream of left evaporator, in evaporator housing.
Exhaust Camshaft Hall Sensor (M271)	Top left side of engine. See Fig. 6 .
Front Axle Sensor (Headlamp Range Adjustment)	Right front wheel house.
Front Axle Sensor (Headlight Range Adjustment)	At right front side of front subframe.
Fuel Tank Pressure Sensor	Under left rear seat.
Gear Display Sensor	Next to gear lever.
Hall Sensor 1, SR	At center front of roof, above dome light.
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. See Fig. 1 .
Hot Film MAF Sensor (M271)	On top of engine. See Fig. 6 .
In-Car Temperature Sensor	In overhead panel.
Intake Air Temperature Sensor (M271)	Left front of engine compartment.
Intake Camshaft Hall Sensor (M271)	Top left side of engine. See Fig. 6 .
Intake Manifold Pressure Sensor (M271)	At left rear of engine. See Fig. 7 .
Knock Sensor (M271)	On left side of engine. See Fig. 7 .
Knock Sensor No. 1	On right cylinder bank. See Fig. 2 .
Knock Sensor No. 2	On left cylinder bank. See Fig. 2 .
Left Center Sensor (Front Bumper)	Behind left center of front bumper.
Left Door Airbag Sensor	Under left rear seat.
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 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.
Light Activation Sensor Assembly	At front of headliner.
Membrane Travel Sensor (BAS)	At left rear of engine compartment.
Oil Sensor (Oil Level, Temperature And Quality) (M112.961)	Lower right side of engine. See Fig. 2 .
Oil Sensor (Oil Level, Temperature And Quality) (M271)	Lower left side of engine. See Fig. 7 .
Outside Temperature Indicator Temperature Sensor	Behind right side of front bumper.
O2 Sensor 1 Upstream TWC (KAT) (M271)	At right rear of engine compartment.
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 Recognition With Automatic Child Seat Recognition (ACSR)	Under front passenger seat.
Passenger-Side Frontal Acceleration Sensor	Right front of engine compartment.
Pedal Value Sensor	Above throttle pedal assembly.
Pressure Sensor	On right front of engine. See Fig. 1 .
Pressure Sensor	Under right front seat.
Pressure Sensor (M271)	At left rear of engine compartment.
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 (Headlamp 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	At bottom left side of radiator condenser.
Right Center Sensor (Front Bumper)	Behind right center of front bumper.
Right Door Airbag Sensor	Under right rear seat.
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 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 Window Glass Breakage Sensor (Wagon)	Behind right rear quarterpanel.
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. See Fig. 5 .
Transmission Oil Temperature Sensor	In transmission valve unit.
Turn Rate And Lateral Acceleration Sensor (203.2)	At front of cargo area.
Wheel Speed Sensor (Left Front)	Behind left front wheel. See Fig. 4 .
Wheel Speed Sensor (Left Rear)	Behind left rear wheel. See Fig. 4 .
Wheel Speed Sensor (Right Front)	Behind right front wheel. See Fig. 4 .
Wheel Speed Sensor (Right Rear)	Behind right rear wheel. See Fig. 4 .
Yaw Rate And Lateral Acceleration Sensor	Right rear of vehicle. See Fig. 5 .

Mercedes-Benz C240 2005 - SOLENOIDS & SOLENOID VALVES

Mercedes-Benz C240 2005 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. See Fig. 1 .
Air Pump Switchover Valve (M271)	At top of engine. See Fig. 6 .
AIR Pump Switchover Valve (V6)	On right front of engine.
Exhaust Camshaft Solenoid (M271)	At right front of engine. See Fig. 6 .
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. See Fig. 1 .
Fuel Injector Cylinder 2 (M112.961)	At top right of engine. See Fig. 1 .
Fuel Injector Cylinder 3 (M112.961)	At top right of engine. See Fig. 1 .
Fuel Injector (1st Cylinder) (M271)	At top left of engine. See Fig. 7 .
Fuel Injector (2nd Cylinder) (M271)	At top left of engine. See Fig. 7 .
Fuel Injector (3rd Cylinder) (M271)	At top left of engine. See Fig. 7 .
Fuel Injector (4th Cylinder) (M271)	At top left of engine. See Fig. 7 .
Intake Camshaft Solenoid (M271)	At left front of engine. See Fig. 6 .
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	Behind left headlight assembly.
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 C240 2005 - SWITCHES

Mercedes-Benz C240 2005 SWITCHES LOCATION

Component	Location
Back-Up Lamp Switch (M/T)	On right side of transmission.
Brake Fluid Indicator Switch	In brake fluid reservoir. See Fig. 5 .
Clutch Pedal Switch	At top of clutch pedal assembly.
ECL/Windshield Washer Fluid Level Switch	In windshield washer reservoir.
Engine Hood Switch (ATA)	At left front of engine compartment.
Kickdown Switch	Incorporated into accelerator pedal assembly.
Left Front Door Switch	At left "B" pillar.
Left Front Seat Belt Buckle Switch	In driver's seat belt buckle.
Left Rear Door Switch	At left "C" pillar.
Parking Brake Switch	On parking brake support bracket. See Fig. 5 .
Release Switch (BAS)	Integral to brake booster.
Right Front Door Switch	At right "B" pillar.
Right Front Seat Belt Buckle Switch	In passengers seat belt buckle.
Right Rear Door 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 Switch	Left front of engine compartment, in washer bottle.

Mercedes-Benz C240 2005 - MISCELLANEOUS

Mercedes-Benz C240 2005 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 (Except Kompressor)	At right rear of cargo area.
Audio Amplifier (Kompressor)	Right side of right rear seat.
Battery	Next to right front shock tower.
Blower Regulator	Under right side of dash.
Bluetooth Antenna	Near rear center of roof.
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. See Fig. 1 .
Cylinder 2 Ignition Coil (M112.961)	At right side of engine compartment. See Fig. 1 .
Cylinder 3 Ignition Coil (M112.961)	At right side of engine compartment. See Fig. 1 .
Cylinder 4 Ignition Coil (M112.961)	At left side of engine compartment. See Fig. 1 .
Cylinder 5 Ignition Coil (M112.961)	At left side of engine compartment. See Fig. 1 .
Cylinder 6 Ignition Coil (M112.961)	At left side of engine compartment. See Fig. 1 .
Drive Actual Value Potentiometer	At right side of engine compartment.
Driver Airbag (AB) Squib 1	Behind driver's air bag.
Driver Airbag (AB) Squib 2	Behind driver's air bag.
Driver ETR Squib	At base of left "B" pillar.
D2B Telephone And 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.
Generator (V6)	At right front of engine.
GPS Antenna	At center rear of roof.
GPS Antenna (Wagon)	At top left of tailgate.
Horn/Airbag Clock Spring Contact	At top of steering column.
Ignition Coil (Cylinder 1) (M271)	At top of engine. See Fig. 6 .
Ignition Coil (Cylinder 1) (V6)	At top right side of engine.
Ignition Coil (Cylinder 2) (M271)	At top of engine. See Fig. 6 .
Ignition Coil (Cylinder 2) (V6)	At top right side of engine.
Ignition Coil (Cylinder 3) (M271)	At top of engine. See Fig. 6 .
Ignition Coil (Cylinder 3) (V6)	At right side of engine.
Ignition Coil (Cylinder 4)(M271)	At top of engine. See Fig. 6 .
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 And Receiver	Under center of headliner.
Left Front Door Airbag Squib	In left front door.
Left Front IR Receiver Unit	At rear of left front door.
Left Rear Door Airbag Squib	In left rear door.
Left Rear ETR Squib	Under left rear seat.
Left Rear Window Airbag Ignition Squib (Wagon) Left Rear Roof	Near top of left "C" pillar.
Left Rear Window (Curtain) Airbag Squib	At left rear "C" pillar.
LF Backrest Heater Element	In left front seat back.
LF Seat Heater Element	Under left front seat.
Passenger AB Squib 1	Behind right side of dash.
Passenger AB Squib 2	Behind right side of dash.
Passenger ETR Squib	At base of right "B" pillar.
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	Top of engine.
Radio Interference Suppression Capacitor 1	Top left side of engine.
Radio Interference Suppression Capacitor 2	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 Airbag Squib	In right front door.
Right Front IR Receiver Unit	At rear of right front door.
Right Rear Door Airbag Squib	In right rear door.
Right Rear ETR Squib	Under right rear seat.
Right Rear Window Airbag Ignition Squib (Wagon)	Near top of right "C" pillar.
Right Rear Window (Curtain) Airbag Squib	At 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.
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.
TV Tuner	At right rear side wall of trunk.

Mercedes-Benz C240 2005 - CONNECTORS

Mercedes-Benz C240 2005 CONNECTORS LOCATION

Component	Location
X1/16 (1 Pin)	At right "C" pillar.
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.
X11/4 (16 Pin)	Under left side of dash.
X15 (4 Pin)	Under left front of vehicle.
X18/35 (2 Pin)	Behind right kick panel.
X18/36 (2 Pin)	Behind right kick panel.
X18/37 (4 Pin)	At right "C" pillar.
X23/11 (2 Pin)	At right side of trunk.
X25/4 (6 Pin)	Behind left kick panel.
X25/9 (2 Pin)	Above right rear wheelwell.
X26/2 (1 Pin)	At left rear of engine compartment.
X26/22 (Natural, 4 Pin)	Behind left kick panel.
X28/12 (10 Pin)	Under center console, left of shifter.
X28/26 (Violet, 4 Pin)	Under top center of dash.
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 (Black, 10 Pin)	Behind right kick panel.
X30/12 (1 Pin)	Behind left kick panel.
X35/1 (4 Pin)	Behind left kick panel.
X35/2 (Violet, 4 Pin)	Behind right kick panel.
X35/3 (4 Pin)	At left "B" pillar.
X35/4 (4 Pin)	At right "B" pillar.
X35/56 (Green, 4 Pin)	Behind left kick panel.
X36/3 (2 Pin)	Under left rear seat.
X39/5 (2 Pin)	Under center console, left of shifter.
X39/36 (Natural, 4 Pin)	Behind left kick panel.
X39/47 (2 Pin)	Under front of center console.
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.
X88/11 (2 Pin)	Behind left kick panel.

Mercedes-Benz C240 2005 - GROUNDS

Mercedes-Benz C240 2005 GROUNDS LOCATION

Component	Location
W6	At left side of trunk.
W7	At right side of trunk.
W8/1 (Wagon)	Top left of tailgate.
W8/2 (Wagon)	Top right of tailgate.
W9	At left front wheel house.
W10	At right rear of engine compartment.
W11	At front of engine, on air pump.
W11/3	At top center front of engine.
W13 (Wagon)	At top right side of tailgate.
W16/3	At left side of engine compartment.
W16/4	At right rear of engine compartment.
W16/5	At left rear of engine compartment.
W18	At base of left "B" pillar.
W19	Under right front seat, under carpet.
W26	Under center console, left of shifter.
W28/1	Behind left kick panel.
W28/2	Behind right kick panel.
W29/3	At left "C" pillar.
W55	At right side of trunk.

Mercedes-Benz C240 2005 - SPLICES

Mercedes-Benz C240 2005 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 trunk lid.
Z6/8	At left rear of engine compartment.
Z6/26	Left rear of engine compartment.
Z6/27	Left rear of engine compartment.
Z6/30 (Wagon)	Front of cargo area.
Z7	At right "C" pillar.
Z7/35(1) (M112)	On left top of engine.
Z7/35(2) (M112)	On top front of engine.
Z7/36 (Except M271)	At left side of trunk.
Z7/36 (M271)	At left rear of engine compartment.
Z7/41	At left rear of engine compartment.
Z7/43	At left rear of engine compartment.
Z7/43 (1)	At left rear of engine compartment.
Z7/43 (2)	At left rear of engine compartment.
Z10	At left side of trunk.
Z20/1	Under center console, left of shifter.
Z36/1	At left side of trunk.
Z36/2	At left side of trunk.
Z36/3	At left front of engine compartment.
Z36/4	At left front of engine compartment.
Z56/8	At right rear corner of engine compartment.
Z81	Under center of dash.
Z81/4	Under center of dash.
Z83/6 (Wagon)	Left side of tailgate.
Z85	At left side of trunk.
Z87/17	At left "C" pillar.
Z87/18	At left "C" pillar.
Z87/22	Above right rear wheelwell.
Z87/23	Above right rear wheelwell.