Mercedes-Benz CL500 2001 - 2001 MERCEDES-BENZ CL500, CL55 & CL600

Mercedes-Benz CL500 2001 - BUZZERS, RELAYS & TIMERS

Mercedes-Benz CL500 2001 BUZZERS, RELAYS & TIMERS LOCATION

Component	Component Location
Air Compressor Relay	In right front fuse & relay module box.
Air Pump Relay	In right front fuse & relay module box.
Fuel Pump Relay	In rear fuse & relay box.
High Pressure & Return Pump Relay	In left front fuse & relay box.
Horn Relay	In right front fuse & relay module box.
Rear Window Defroster Relay	In rear compartment fuse & relay box.
Rear Window Roller Blind Relay	In rear compartment fuse & relay box.
Starter Relay	In right front fuse & relay box.
Steering Column Forward/Backward Adjustment Relay 1	In left front fuse & relay box.
Steering Column Forward/Backward Adjustment Relay 2	In left front fuse & relay box.
Steering Column Height Adjustment Relay 1	In left front fuse & relay box.
Steering Column Height Adjustment Relay 2	In left front fuse & relay box.
Wiper On & Off Relay	In left front fuse & relay box.
Wiper Park Heater Relay	In left front fuse & relay box.
Wiper Stage 1 Relay	In left front fuse & relay box.
Wiper Stage 2 Relay	In left front fuse & relay box.

Mercedes-Benz CL500 2001 - CIRCUIT PROTECTION DEVICES

Mercedes-Benz CL500 2001 CIRCUIT PROTECTION DEVICES LOCATION

Component	Component Location
Fuse Box	In left front fuse & relay box.
Left Front Fuse & Relay Box	At left rear of engine compartment. See Fig. 2 .
Maxi Fuse Box	In left front fuse & relay box.
Right Front Fuse & Relay Module Box	At right rear of engine compartment. See Fig. 1 .
Rear Compartment Fuse & Relay Box	Under right side of rear seat. See Fig. 1 .
Rear Fuse Box	At right side of trunk. See Fig. 1 .

Mercedes-Benz CL500 2001 - CONTROL UNITS

Mercedes-Benz CL500 2001 CONTROL UNITS LOCATION

Component	Component Location
Active Body Control, Control Module	In right front fuse & relay module box.
ASR/ETS/ESP Hydraulic Unit	At left front of engine compartment.
ASR/SPS Control Module	In right front fuse & relay module box.
Auxiliary Fan Relay Module (Stage 1)	In left front fuse & relay box.
Auxiliary Fan Relay Module (Stage 2)	In left front fuse & relay box.
BAS Control Module	Next to brake booster.
CTEL Transmitter/Receiver/Voice Activation Module	At bottom left rear of trunk.
DAS Control Module	Behind instrument cluster.
Daytime Running Light Control Module	Behind left side of dash.
Distronic Control Unit	At front of passenger footwell, under carpet. See Fig. 3 .
Door Control Module (2)	In respective door.
Electric Cooling Fan Control Module	In left front wheelwell, on frame rail.
Engine Control Module	At right front fuse & relay module box.
ESP Control Module	At left rear of engine compartment. See Fig. 2 .
ETC Control Unit	At left rear of engine compartment. See Fig. 2 .
Exterior Light Failure Monitoring Module	In left front fuse & relay box.
Fuel Pump Relay Module	At right side of trunk.
Garage Door Opener Control Module	On left sun visor.
High Pressure/Return Pump Relay Module	In left front fuse & relay box.
Horn Relay Module	In left front fuse & relay box.
Left Engine Control Module (ME-SFI) (CL600)	At right front fuse & relay module box.
Left Front SAM Control Module	Under left front fuse & relay box.
O2S2 Heater Relay Module	In left front fuse & relay box.
PSE Control Module	At right side rear of trunk. See Fig. 2 .
PTS Control Module	Under right side of rear seat. See Fig. 1 .
Rear SAM Control Module	Under rear fuse & relay box.
Remote Central Locking Control Module	In trunk, below package shelf.
Right Engine Control Module (ME-SFI) (CL600)	At right front fuse & relay module box.
Right Front SAM Control Module	In right front fuse & relay module box.
SRS Control Module	On transmission tunnel, forward of shifter.
Starter Lock-Out Relay Module	Behind dash, above left kick panel. See Fig. 2 .
Transmission Control Module	In passenger's footwell. See Fig. 3 .
Upper Control Panel Module	Behind upper center of dash. See Fig. 3 .
Xenon Headlight Control Module (2)	Behind respective headlight.

Mercedes-Benz CL500 2001 - MOTORS

Mercedes-Benz CL500 2001 MOTORS LOCATION

Component	Component Location
A/C System Blower Unit	Beneath lower right side of dash.
Air Pump	At center front of engine.
ASR/ESP Charging Pump	On master cylinder.
Auxiliary Fan	Front of engine compartment.
Fuel Pump	At rear underside of vehicle, right of differential.
Headlight Range Adjustment Motor (2)	Behind respective headlight.
Headlight Washer Pump	On lower front of washer reservoir.
Headlight Wiper Motor (2)	Beneath respective headlight.
In-Vehicle Temperature Sensor Aspirator Blower	Near center of windshield header, above dome light.
Left Throttle Valve Actuator (CL600)	On left throttle body.
Right Throttle Valve Actuator (CL600)	On right throttle body.
Sliding/Pop-Up Roof Motor	At center of windshield header, behind dome light.
Throttle Valve Actuator (CL55)	At center rear of intake manifold, on throttle body.
Throttle Valve Actuator (CL500)	At center rear of intake manifold, on throttle body.
Windshield Washer Pump	On lower right side of washer reservoir.
Wiper Motor	At center rear of engine compartment.

Mercedes-Benz CL500 2001 - SENDING UNITS & SENSORS

Mercedes-Benz CL500 2001 SENDING UNITS & SENSORS LOCATION

Component	Component Location
ABC Lateral Acceleration Sensor	At left side of transmission tunnel.
ABC Longitudinal Acceleration Sensor	Under left side of right front seat.
ABC Pressure Sensor	Under center right of vehicle.
ATA Tow Sensor	At left rear of trunk, below carpet.
Brake Pad Wear Sensor (4)	On respective brake caliper.
Camshaft Hall Effect Sensor (CL55)	On front of right cylinder head.
Camshaft Hall Effect Sensor (CL500)	On front of right cylinder head.
Right Camshaft Hall Effect Sensor (CL600)	On front of right cylinder head.
CKP Sensor (CL55)	At left rear of engine.
CKP Sensor (CL500)	At left rear of engine.
Distronic Radar Sensor	Behind center of grille. See Fig. 2 .
ECT Sensor (CL55)	At front of engine.
ECT Sensor (CL500)	At front of engine.
EGR Pressure Transducer	At rear of engine, near EGR valve.
ESP Yaw Rate Sensor	At center of trunk floor, forward of spare tire.
Evaporator Temperature Sensor	Above accelerator pedal, on left side of HVAC unit.
Front Axle Sensor (Headlight Range Adjustment)	In right front wheelwell, on upper control arm.
Fuel Tank Level Sensor	On top of fuel tank.
Fuel Tank Pressure Sensor	Incorporated into fuel level sensor.
Heater Core Temperature Sensor	In console behind radio, on heater box.
Hot Film MAF Sensor (CL500)	At center rear of intake manifold.
Hot Film MAF Sensor (CL55)	At center rear of intake manifold.
IAT Sensor (CL55)	Integrated into hot film MAF sensor.
IAT Sensor (CL500)	Integrated into hot film MAF sensor.
In-Car Temperature Sensor	In dome light assembly.
Left Camshaft Hall Effect Sensor (CL600)	On front of left cylinder head.
Left CKP Sensor (CL600)	At left rear of engine.
Left ECT Sensor (CL600)	At front of left cylinder head.
Left IAT Sensor (CL600)	Incorporated into left hot film MAF Sensor.
Left Front Axle VSS Sensor	On left front wheel hub assembly.
Left Front Body Acceleration Sensor	On left front shock tower.
Left Hot Film MAF Sensor (CL600)	In left side intake duct.
Left Knock Sensor (CL500)	Under left side of intake manifold.
Left Knock Sensor (CL55)	Under left side of intake manifold.
Left Knock Sensor No. 1 (CL600)	Under front left of intake manifold.
Left Knock Sensor No. 2 (CL600)	Under rear left of intake manifold.
Left Rear Axle VSS Sensor	On left rear wheel hub assembly.
Left Side Air Bag Sensor	Under left front seat, beneath carpet.
Membrane Travel Sensor	On brake master cylinder booster.
Oil Sensor	On right side of oil pan.
Outside Temperature Indicator Temperature Sensor	At front right side air intake below bumper.
Oxygen Sensor No. 1 (Before TWC)	On exhaust pipe, before TWC.
Oxygen Sensor No. 2 (After TWC)	On exhaust pipe, after TWC.
Pedal Value Sensor	At top of accelerator pedal assembly.
Pressure Sensor	At top front of engine.
Rain Sensor	At top center of windshield, forward of rearview mirror.
Rear Axle Sensor (Headlight Range Adjustment)	Beneath rear of vehicle, on center of rear axle.
Rear VSS Sensor	On rear differential assembly.
Refrigerant Pressure Sensor	On the receiver-drier, behind left headlight.
Refrigerant Temperature Sensor	On the receiver-drier, behind left headlight.
Right CKP Sensor (CL600)	At right rear of engine.
Right ECT Sensor (CL600)	At front of right cylinder head.
Right Front Body Acceleration Sensor	On right front shock tower.
Right Front VSS Sensor	On right front wheel hub assembly.
Right Hot Film MAF Sensor (CL600)	In right side intake duct.
Right IAT Sensor (CL600)	Integrated in right hot film MAF Sensor.
Right Knock Sensor (CL55)	Under right side of intake manifold.
Right Knock Sensor (CL500)	Under right side of intake manifold.
Right Knock Sensor No. 1 (CL600)	Under front right of intake manifold.
Right Knock Sensor No. 2 (CL600)	Under rear right of intake manifold.
Right Rear Axle VSS Sensor	On right rear wheel hub assembly.
Right Rear Body Acceleration Sensor	At right rear shock tower.
Right Side Air Bag Sensor	Under right front seat, beneath carpet.
Steering Angle Sensor	Behind left side of dash, below instrument cluster.

Mercedes-Benz CL500 2001 - SOLENOIDS & SOLENOID VALVES

Mercedes-Benz CL500 2001 SOLENOIDS & SOLENOID VALVES LOCATION

Component	Component Location
Activated Charcoal Canister Shut-Off Valve	Behind left rear wheelwell.
AIR Pump Switchover Valve (CL55)	At top front of engine.
AIR Pump Switchover Valve (CL500)	At top front of engine.
Divert Air Switchover Valve	On right front side of left cylinder head.
Duovalve	At right rear corner of engine compartment.
EGR Switchover Valve	On top front of engine.
ETC Valve Unit	On left side of transmission.
Left AIR Pump Switchover Valve (CL600)	Near left hot film MAF sensor.
Pressure Control Flap Vacuum Transducer	At left front corner of engine compartment.
Purge Control Valve	At left rear of engine compartment.
Purge Flow Switchover Valve	At left front corner of engine compartment.
Right AIR Pump Switchover Valve (CL600)	At front of right cylinder head.
SPS Solenoid Valve	On steering rack pinion housing.
Trunk Release Control Valve	On trunk lock assembly.

Mercedes-Benz CL500 2001 - SWITCHES

Mercedes-Benz CL500 2001 SWITCHES LOCATION

Component	Component Location
Back-Up Light Switch	On gear shift selector assembly.
Brake Fluid Level Switch	On brake fluid reservoir.
Buckle Switch (2)	At respective front seat belt buckle.
ECL Switch	At bottom of coolant reservoir.
Engine Hood Switch (Anti-Theft Alarm)	At front center of engine compartment.
Kickdown Switch	Under accelerator pedal.
Parking Brake Switch	On parking brake assembly.
Stoplight Switch	At top of brake pedal.
Transmission Range Recognition Switch	On gear shift selector assembly.
Windshield Washer Fluid Level Switch	On windshield washer fluid reservoir.

Mercedes-Benz CL500 2001 - MISCELLANEOUS

Mercedes-Benz CL500 2001 MISCELLANEOUS LOCATION

Component	Component Location
Alarm Horn	Behind left side of front bumper. See Fig. 2 .
Antenna Amplifier Module	At top of rear window. See Fig. 2 .
Audio Amplifier	At left side of luggage compartment. See Fig. 2 .
Battery	At right rear of trunk, below carpet.
CD Changer	At left side of luggage compartment.
CTEL Interface	At left side of trunk, behind carpet.
CTEL Transmitter/Receiver	At left front of luggage compartment.
Data Link Connector (DLC) (OBD II)	At lower left side of dash. See Fig. 3 .
Data Link Connector (DTC Readout)	At right rear corner of engine compartment. See Fig. 1 .
Infrared Remote Central Locking (IRCL) Receiver	On interior rear view mirror.
Left Front Door IR Receiver	Part of driver's door handle.
Right Front Door IR Receiver	Part of passenger's door handle.
SRS Test Connector	Behind right kick panel.
Trailer Hitch Socket	Beneath center of rear bumper.
Transponder Coil	Surrounding ignition lock cylinder. See Fig. 3 .
Trunk Lid IR Receiver	On trunk lid, left of lock cylinder.

Mercedes-Benz CL500 2001 - CONNECTORS

Mercedes-Benz CL500 2001 CONNECTORS LOCATION

Component	Component Location
X18 (12 Pin)	Under left kick panel.
X25/8 (26 Pin)	At base of left "C" pillar.
X26/27 (8 Pin)	In front of right front wheelwell.
X28/12 (10 Pin)	Under left kick panel.
X35/1(1) (6 Pin)	In left door.
X35/1(2) (2 Pin)	In left door.
X35/1(3) (6 Pin)	In left door.
X35/2(1) (6 Pin)	In right door.
X35/2(2) (6 Pin)	In right door.
X35/2(3) (6 Pin)	In right door.
X35/3 (6 Pin)	Under trim panel, behind left door.
X35/4 (6 Pin)	Under trim panel, behind right door.
X35/28 (6 Pin)	At right rear of luggage compartment.
X35/66 (13 Pin)	Under left kick panel.
X62/6 (4 Pin)	At right side of engine compartment, under coolant reservoir.
X64/3 (2 Pin)	At right rear of engine compartment, near heater air intake.
X85/1 (10 Pin)	In left fuse & relay box.

Mercedes-Benz CL500 2001 - GROUNDS

Mercedes-Benz CL500 2001 GROUNDS LOCATION

Component	Component Location
W2	At right rear of engine compartment. See Fig. 1 .
W3/6	Behind right side of front bumper. See Fig. 1 .
W6	At left front of luggage compartment. See Fig. 1 .
W7/1	At right rear of luggage compartment, near battery. See Fig. 1 .
W9	At left rear of engine compartment. See Fig. 2 .
W10	At right rear of luggage compartment, near battery. See Fig. 1 .
W11/3	At left front of luggage compartment. See Fig. 2 .
W13	At base of left "C" pillar, under trim. See Fig. 2 .
W15/2	Behind left kick panel. See Fig. 2 .
W16/6	At right rear of engine compartment. See Fig. 1 .
W17/1	Under right rear of left front seat. See Fig. 2 .
W26	Under center console, on mounting bolt for SRS ECU. See Fig. 3 .
W28/1	Near center of left door sill. See Fig. 2 .
W28/2	At base of right "B" pillar. See Fig. 1 .
W36/1	Under right kick panel. See Fig. 1 .
W36/2	Under right kick panel. See Fig. 1 .
W50/2	Under right rear of right front seat. See Fig. 1 .

Mercedes-Benz CL500 2001 - SPLICES

Mercedes-Benz CL500 2001 SPLICES LOCATION

Component	Component Location
Z3	In passenger harness, behind center of dash.
Z3/29 (1)	In left engine harness, at left rear of engine.
Z3/29 (2)	In right engine harness, at right rear of engine.
Z4/1	In right interior harness, under rear of center console.
Z4/3	In passenger harness, behind center of dash.
Z4/3 (1)	In left interior harness, under rear of left front seat.
Z4/4	In right interior harness, at front of right kick panel.
Z6	In passenger harness, behind center of dash.
Z6/1	In right interior harness, under rear of center console.
Z6/6 (1)	In right luggage compartment harness, behind right rear wheelwell.
Z6/16	In passenger harness, behind center of dash.
Z6/30	In right interior harness, under center of center console.
Z6/33 (1)	In passenger harness, behind center of dash.
Z6/33 (2)	In passenger harness, behind center of dash.
Z6/33 (4)	In passenger harness, behind center of dash.
Z7/5	In right interior harness, at front of right kick panel.
Z7/21	In passenger harness, behind center of dash.
Z7/32	In passenger harness, behind center of dash.
Z7/36	In right engine harness, at right side of engine compartment.
Z7/40	In left engine harness, at left side of engine compartment.
Z7/49	In left interior harness, near rear of left kick panel.
Z28/1	In left luggage compartment harness, behind left rear wheelwell.
Z28/2	In left luggage compartment harness, behind left rear wheelwell.
Z28/3	In right luggage compartment harness, behind right rear wheelwell.
Z28/4	In right luggage compartment harness, behind right rear wheelwell.
Z28/25	In right interior harness, under center of center console.
Z28/26	In right interior harness, under center of center console.
Z28/35	In right interior harness, at rear of right kick panel.
Z35/1	In left interior harness, near front of left kick panel.
Z35/2	In left interior harness, near front of left kick panel.
Z35/4	In left interior harness, near rear of left kick panel.
Z35/5	In left interior harness, near rear of left kick panel.
Z35/6	In left interior harness, near rear of left kick panel.
Z35/10	In left interior harness, near front of left kick panel.
Z36/1	In right luggage compartment harness, behind right rear wheelwell.
Z36/2	In right luggage compartment harness, behind right rear wheelwell.
Z36/8	In passenger harness, behind center of dash.
Z36/9	In passenger harness, behind center of dash.
Z36/3	In right engine harness, behind right side of front bumper.
Z36/4	In right engine harness, behind right side of front bumper.
Z36/10	In passenger harness, behind center of dash.
Z37/2	In left interior harness, near front of left kick panel.
Z37/3	In left interior harness, near front of left kick panel.
Z37/8	In passenger harness, behind center of dash.
Z37/13	In passenger harness, behind center of dash.
Z37/14	In passenger harness, behind center of dash.
Z81	In passenger harness, behind center of dash.
Z52/5 (1)	In passenger harness, behind center of dash.
Z73	In right interior harness, at front of right kick panel.
Z73 (1)	In right interior harness, at front of right kick panel.
Z73/1	In left interior harness, near front of left kick panel.
Z73/1 (1)	In left interior harness, near front of left kick panel.
Z73/2	In right interior harness, at front of right kick panel.
Z81/4	In left interior harness, near front of left kick panel.
Z82/3	In right luggage compartment harness, behind right rear wheelwell.
Z87/17	In left interior harness, near rear of left kick panel.
Z87/18	In left interior harness, near rear of left kick panel.
Z88	In left interior harness, near front of left kick panel.
Z89	In left interior harness, near front of left kick panel.