Mercedes-Benz CLK550 2008 - 2008 MERCEDES-BENZ CLK350, CLK550 & CLK63 AMG

Mercedes-Benz CLK550 2008 - BUZZERS, RELAYS & TIMERS

Mercedes-Benz CLK550 2008 BUZZERS, RELAYS & TIMERS LOCATION

Component	Location
Air Pump Relay (O)	Integral to front SAM. See Fig. 64.
Circuit 15 Relay (P)	Integral to front SAM. See Fig. 64.
Circuit 15R Relay (M)	Integral to front SAM. See Fig. 64.
Circuit 87 Relay (Chassis) (K)	Integral to front SAM. See Fig. 64.
Circuit 87 Relay (Engine) (R)	Integral to front SAM. See Fig. 64.
Fan Relay Module (I)	Integral to front SAM. See Fig. 64.
Fuel Filler Cap Polarity Change 1 Relay (G)	Integral to rear SAM. See Fig. 65.
Fuel Filler Cap Polarity Change 2 Relay (H)	Integral to rear SAM. See Fig. 65.
Fuel Pump Relay Module (A)	Integral to rear SAM. See Fig. 65.
Rear Screen Blind Relay	Left rear of trunk.
Rear Window Defroster Relay (E)	Integral to rear SAM. See Fig. 65.
Relay 1, Circuit 15R (F)	Integral to rear SAM. See Fig. 65.
Relay 2, Circuit 15R (B)	Integral to rear SAM. See Fig. 65.
Reserve 1 Relay (D)	Integral to rear SAM. See Fig. 65.
Reserve 2 Relay (C)	Integral to rear SAM. See Fig. 65.
SEQ (ASG) Pump Control Relay (N)	Integral to front SAM. See Fig. 64.
Starter Relay (S)	Integral to front SAM. See Fig. 64.
Wiper ON & OFF Relay (Q)	Integral to front SAM. See Fig. 64.
Wiper Relay, Stage 1-2 (L)	Integral to front SAM. See Fig. 64.

Mercedes-Benz CLK550 2008 - CIRCUIT PROTECTION DEVICES

Mercedes-Benz CLK550 2008 CIRCUIT PROTECTION DEVICES LOCATION

Component	Location
Front Prefuse Box (F32)	Right rear of engine compartment. See Fig. 1.
Front SAM Control Module W/Fuse & Relay Module (N10/1)	Left rear of engine compartment. See Fig. 1.
Interior Fuse Box	Left side of dash.
Rear SAM Control Module W/Fuse & Relay Module (N10/2)	Left side of trunk. See Fig. 1.

Mercedes-Benz CLK550 2008 - CONTROL UNITS

Mercedes-Benz CLK550 2008 CONTROL UNITS LOCATION

Component	Location
Blower Regulator	Integral to blower motor assembly.
DI Control Module	Integral to ignition switch assembly.
Driver Front Seat Adjustment Control Module W/Memory & Easy Entry	Under driver's seat.
DTR Control Module	Integral to DTR control unit.
DTR Control Unit	Front center of engine compartment. See Fig. 10.
Electric Control Unit (VGS) (Y3/8)	Under automatic gearbox. See Fig. 55.
Electric Control Unit (Y3/6)	In transmission. See Fig. 54.
Electronic Selector Lever Module Control Module	Under center console, at base of selector lever assembly.
Electronic Steering Lock Control Module	Left upper footwell.
ESP & BAS Control Module	Left side of engine compartment.
ETC (EGS) Control Module	Behind right kick panel.
Fan Relay Module	Integral to front SAM.
Front Passenger Front Seat Adjustment Control Module W/Memory & Easy Entry	Under right front seat.
Fuel Pump Relay Module	Integral to rear SAM.
Fully Integrated Transmission Control (VGS) Control Unit (Y3/8n4)	Integral to electric control unit (VGS). See Fig. 55.
Headlamp Range Adjustment Control Module (N71)	Behind right kick panel. See Fig. 27.
Interior Module Keyless Go Control Module	Under rear of center console.
Left Door Keyless Go Control Module (N69/8)	In driver's door. See Fig. 25.
Left Front Door Control Module	In left front door.
Left Front Seat Ventilation Blower Regulator	In driver's seat back.
ME-SFI (ME) Control Module	In front SAM control module.
Power Soft Top Control Module	Left front of trunk.
PTS Control Module	Behind right kick panel.
Rear Blower Motor Control Module	Rear of center console.
Rear Control Module	Left side of trunk.
Rear Module Keyless Go Control Module	Left side of trunk.
Restraint Systems Control Module	In center console.
Right Door Control Module	In right front door.
Right Door Keyless Go Control Module (N69/9)	In front passenger's door. See Fig. 26.
Right Front Seat Ventilation Blower Regulator	In front passenger's seat back.
SDAR Control Unit (N87/5)	At right rear of trunk. See Fig. 28.
Soft Top Mechanism Hydraulic Unit (A7/5)	Left rear of trunk. See Fig. 8.
Steering Column Module	Behind steering wheel, in column.
Tele Aid (Emergency Call System) & D2B Telephone Transmitter/Receiver Control Module	Front center of trunk.
Traction System Hydraulic Unit	Left front of engine compartment.
Voice Control System Control Module	Front center of trunk.
WSS Control Unit (Weight Sensing System) (N2/13)	Under front passenger's seat. See Fig. 13.
Xenon Headlight Control Module (Left)	Integral to left front headlight unit.
Xenon Headlight Control Module (Right)	Integral to right front headlight unit.
Xenon Headlight Ignition Module (Left)	Integral to left front headlight unit.
Xenon Headlight Ignition Module (Right)	Integral to right front headlight unit.

Mercedes-Benz CLK550 2008 - MOTORS

Mercedes-Benz CLK550 2008 MOTORS LOCATION

Component	Location
Activated Charcoal Filter Flap Adjustment Motor	Under right side of dash.
Actuator Motor	Integral to throttle valve actuator.
AIR Pump	Front of engine.
Backrest Motor (Driver)	Integral to driver seat adjustment motor group.
Backrest Motor (Front Passenger)	Integral to passenger seat adjustment motor group.
Blower Motor	Under right side of dash.
Coolant Circulation Pump	Right front of engine compartment.
Driver Seat Adjustment Motor Group W/Memory	In driver's seat.
Electric Air Pump (M112) (M33)	Top front of engine. See Fig. 58.
Electric Air Pump (M113) (M33)	Top front of engine. See Fig. 60.
Electric Air Pump (M156)	Top front of engine.
Electric Suction Fan Engine & AC W/Integrated Control (M4/7)	Front of engine compartment. See Fig. 21.
ESC (ELV) Motor Group (M20)	In steering column. See Fig. 23.
Fan Motor 1	Integral to radio additional fan.
Fan Motor 2	Integral to radio additional fan.
Forward/Back Motor (Driver)	Integral to driver seat adjustment motor group.
Forward/Back Motor (Front Passenger)	Integral to passenger seat adjustment motor group.
Fresh Air/Re-Circulated Air Flaps Actuator Motor	Behind right side of dash.
Front Throttle Valve Actuator (M16/3)	Front center of engine. See Fig. 63.
Front Up/Down Motor (Driver)	Integral to driver seat adjustment motor group.
Front Up/Down Motor (Front Passenger)	Integral to passenger seat adjustment motor group.
Fuel Filler Flap CL Motor	At fuel filler door.
Fuel Pump (FP)	Under left rear seat, in fuel tank.
HCS Pump (M5/2)	Front left wheelwell. See Fig. 36.
Head Restraint Raise/Lower Motor (Driver)	Integral to driver seat adjustment motor group.
Head Restraint Raise/Lower Motor (Front Passenger)	Integral to passenger seat adjustment motor group.
Height Adjustment Up/Down Motor (M20m2)	Integral to ESC (ELV) motor group. See Fig. 23.
High-Pressure/Return Pump	Integral to traction system hydraulic unit.
Left Blending Air Flap Actuator (M2/6)	Behind left side of dash. See Fig. 15.
Left Defroster Vent Flap Actuator Motor (M2/8)	Behind left side of dash. See Fig. 17.
Left Door CL (ZV) Motor	In left door.
Left Dynamic Cornering Lamp Motor	Integral to left front headlight unit.
Left Electrically Adjustable & Heated Exterior Mirror	On driver's door.
Left Footwell Flap Actuator Motor (M2/10)	Behind left side of dash. See Fig. 18.
Left Fresh Air Flap Actuator (M2/19)	Behind center of dash. See Fig. 20.
Left Front Power Window Motor	In left front door.
Left Front Seat Backrest Ventilation Motor Group	In driver's seat back.
Left Front Seat Cushion Ventilation Motor Group	In driver's seat cushion.
Left Headlight Range Adjustment Motor	Integral to left front headlight unit.
Left Rear Power Window Motor	In left rear door.
Longitudinal Adjustment Forward/Back Motor (M20m1)	Integral to ESC (ELV) motor group. See Fig. 23.
Passenger Seat Adjustment Motor Group W/Memory	In front passenger's seat.
Radio Additional Fan	Behind radio.
Rear Blind Drive Unit	Under rear parcel shelf.
Rear Blower Motor	Rear of center console.
Rear Throttle Valve Actuator (M16/4)	Rear center of engine. See Fig. 63.
Rear Up/Down Motor (Driver)	Integral to driver seat adjustment motor group.
Rear Up/Down Motor (Front Passenger)	Integral to passenger seat adjustment motor group.
Right Blending Air Flap Actuator (M2/7)	Behind glove box. See Fig. 16.
Right Defroster Vent Flap Actuator Motor	Behind center of dash.
Right Door CL (ZV) Motor	In right door.
Right Dynamic Cornering Lamp Motor	Integral to right front headlight unit.
Right Electrically Adjustable & Heated Exterior Mirror	On front passenger's door.
Right Footwell Flap Actuator Motor (M2/11)	Under center of dash. See Fig. 19.
Right Fresh Air Flap Actuator	Behind center of dash.
Right Front Power Window Motor	In right front door.
Right Front Seat Backrest Ventilation Motor Group	In right front seat back.
Right Front Seat Cushion Ventilation Motor Group	In right front seat cushion.
Right Headlight Range Adjustment Motor	Integral to right front headlight unit.
Right Rear Power Window Motor	In right rear door.
Sliding/Pop-Up Roof Drive Assembly	Center of roof.
SR Motor	Integral to sliding/pop-up roof drive assembly.
Starter	Lower left rear of engine.
Throttle Valve Actuator (M112) (M16/6)	Rear of engine. See Fig. 59.
Throttle Valve Actuator (M113) (M16/6)	Rear of engine. See Fig. 61.
Windshield Washer Fluid Pump (M5/1)	Front left wheelwell. See Fig. 22.
Wiper Motor	Center rear of engine compartment.

Mercedes-Benz CLK550 2008 - SENDING UNITS & SENSORS

Mercedes-Benz CLK550 2008 SENDING UNITS & SENSORS LOCATION

Component	Location
Accelerator Pedal Sensor	On accelerator pedal assembly.
Air Humidity Sensor	Right rear engine compartment.
Ambient Temperature Display Temperature Sensor	Behind right side of front bumper.
ATA (EDW) Inclination Sensor	Left side of trunk.
Automatic Dimming Interior Rearview Mirror Sensor (Back)	Inside rear view mirror.
Automatic Dimming Interior Rearview Mirror Sensor (Forward)	Inside rear view mirror.
BAS Diaphragm Travel Sensor	Integral to BAS brake booster.
Belt Tension Sensor (B48/3)	At right side of driver's seat. See Fig. 12.
C-AAC (K-KLA) Multifunction Sensor	Right rear of engine compartment.
C-AAC Sun Sensor (4)	Center of engine hood.
Camshaft Hall Sensor (M112) (B6/1)	Right front of engine. See Fig. 58.
Camshaft Hall Sensor (M113) (B6/1)	Right front of engine. See Fig. 60.
Center Left Sensor (Front Bumper)	Left side of front bumper.
Center Right Sensor (Front Bumper)	Right side of front bumper.
Coolant Temperature Sensor (M112) (B11/4)	Front of engine. See Fig. 58.
Coolant Temperature Sensor (M113) (B11/4)	Front of engine. See Fig. 60.
Crankshaft Hall Sensor (M272)	Rear of left cylinder bank.
Crankshaft Position Sensor (M112) (L5)	Left rear of engine. See Fig. 58.
Crankshaft Position Sensor (M113) (L5)	Left rear of engine. See Fig. 60.
Driver-Side Frontal Acceleration Sensor (B48/1)	Left front of engine compartment. See Fig. 11.
DTR Radar Sensor	Integral to DTR control unit.
EGR (ARF) Vacuum Transducer	Right rear of engine.
Emergency Call System Control Unit (N123/4)	At front center of trunk. See Fig. 29.
Engine Coolant Temperature Sensor (B11/4)	Front of engine. See Fig. 63.
ESP Brake Pressure Hall Sensor (M272)	Right front of engine.
ESP Brake Pressure Sensor (M113.968)	On brake master cylinder assembly.
Evaporator Temperature Sensor	Under left side of dash.
Front Axle Sensor (Headlight Range Adjustment)	At right front wheelwell.
Fuel Pressure Sensor (B4/15)	Top left front of engine. See Fig. 63.
Fuel Tank Pressure Sensor	Under left rear seat, in fuel tank.
Gear Display Sensor	Integral to gear shifter assembly.
Hall Sensor 1	Integral to sliding/pop-up roof drive assembly.
Hall Sensor 2	Integral to sliding/pop-up roof drive assembly.
Hot Film MAF Sensor W/Intake Air Temperature Sensor (M112) (B2/5)	Center rear of engine. See Fig. 58.
Hot Film MAF Sensor W/Intake Air Temperature Sensor (M113) (B2/5)	Center rear of engine. See Fig. 60.
In-Car Temperature Sensor	Integral to roof control unit control module.
Intake Air Temperature Sensor (B17)	Center rear of engine. See Fig. 63.
Intake Manifold Pressure Sensor (M113) (B28)	Top front of engine. See Fig. 60.
Intake Manifold Pressure Sensor (M156) (B28)	Top front of engine. See Fig. 63.
Internal Speed Sensor (VGS) (Y3/8n2)	Integral to electric control unit (VGS). See Fig. 55.
Left Exhaust Camshaft Hall Sensor (B6/6)	Left front of engine. See Fig. 63.
Left Front Wheel Speed Sensor	Left front steering knuckle assembly.
Left Fuel Level Sensor	Under left rear seat, in fuel tank.
Left Inner Sensor (Front Bumper)	Inner left side of front bumper.
Left Inner Sensor (Rear Bumper)	Left side of rear bumper.
Left Intake Camshaft Hall Sensor (B6/4)	Left front of engine. See Fig. 63.
Left Intake Manifold Tumble Flap Position Sensor	Center rear of engine compartment.
Left Knock Sensor 2 (M112) (A16/2)	Top center of engine. See Fig. 59.
Left Knock Sensor 2 (M113) (A16/2)	Top center of engine. See Fig. 61.
Left Knock Sensor 2 (M156) (A16/2)	Left side of engine. See Fig. 63.
Left Mass Air Flow Sensor (B2/6)	Left rear of engine. See Fig. 63.
Left Outer Sensor (Front Bumper)	Left corner of front bumper.
Left Outer Sensor (Rear Bumper)	Left corner of rear bumper.
Left O2 Sensor Downstream Of Catalytic Converter (G3/5)	In left catalytic converter. See Fig. 63.
Left O2 Sensor Upstream Of Catalytic Converter (G3/3)	In left exhaust. See Fig. 63.
Left Rear Wheel Speed Sensor	Left rear wheel hub assembly.
Left Side Air Bag & Window Air Bag Sensor	In left "B" pillar.
Light Activation Sensor Assembly	Top center of windshield.
Obstruction Sensor Unit	Integral to sliding/pop-up roof drive assembly.
Oil Pressure Sensor (M113) (B40/2)	Top left front of engine. See Fig. 62.
Oil Sensor (Level, Temperature & Quality) (M112) (B40)	Right side of oil pan. See Fig. 59.
Oil Sensor (Level, Temperature & Quality) (M113) (B40)	Right side of oil pan. See Fig. 61.
Oil Temperature Sensor (B1)	Left side of engine. See Fig. 63.
Output Speed Sensor (VGS) (Y3/8n3)	Integral to electric control unit (VGS). See Fig. 55.
Passenger Seat Occupied & Child Seat Recognition Sensor	In front passenger seat.
Passenger-Side Frontal Acceleration Sensor	Right front of engine compartment.
Pressure Sensor Front Passenger's Seat) (B48/4)	Under front passenger's seat. See Fig. 13.
Pressure Sensor (M112) (B28)	Front of engine. See Fig. 58.
PTS Sensor Unit (Front Bumper)	Left side of front bumper.
Rain/Light Sensor	Top center of windshield.
Rear Axle Sensor (Headlight Range Adjustment)	At right rear wheelwell.
Refrigerant Pressure & Temperature Sensor	Behind left side of front bumper.
Right Exhaust Camshaft Hall Sensor (B6/7)	Right front of engine. See Fig. 63.
Right Front Brake Pad Contact Sensor	On right front brake assembly.
Right Front Wheel Speed Sensor	Right front steering knuckle assembly.
Right Fuel Level Sensor	Under right rear seat, in fuel tank.
Right Inner Sensor (Front Bumper)	Inner right side of front bumper.
Right Inner Sensor (Rear Bumper)	Right side of rear bumper.
Right Intake Camshaft Hall Sensor (B6/5)	Right front of engine. See Fig. 63.
Right Intake Manifold Tumble Flap Position Sensor	Top center rear of engine, between cylinder banks.
Right Knock Sensor 1 (M112) (A16/1)	Top center of engine. See Fig. 59.
Right Knock Sensor 1 (M113) (A16/1)	Top right of engine. See Fig. 61.
Right Knock Sensor 1 (M156) (A16/1)	Right side of engine. See Fig. 63.
Right Mass Air Flow Sensor (B2/7)	Right rear of engine. See Fig. 63.
Right Outer Sensor (Front Bumper)	Right corner of front bumper.
Right Outer Sensor (Rear Bumper)	Right corner of rear bumper.
Right O2 Sensor Downstream Of Catalytic Converter (G3/6)	In right catalytic converter. See Fig. 63.
Right O2 Sensor Upstream Of Catalytic Converter (G3/4)	In right exhaust. See Fig. 63.
Right Rear Wheel Speed Sensor	Right rear wheel hub assembly.
Right Side Air Bag & Window Air Bag Sensor	In right "B" pillar.
RPM Sensor 2	Integral to electric control unit.
RPM Sensor 3	Integral to electric control unit.
Selection Range Sensor (VGS) (Y3/8s1)	Integral to electric control unit (VGS). See Fig. 55.
Steering Angle Sensor (N49)	In steering column assembly. See Fig. 24.
TLC (HDS) Control Module	Left side of trunk.
TPM (RDK) Wheel Sensor (Left Front) (A69/1)	In left front wheel. See Fig. 9.
TPM (RDK) Wheel Sensor (Left Rear) (A69/3)	In left rear wheel. See Fig. 9.
TPM (RDK) Wheel Sensor (Right Front) (A69/2)	In right front wheel. See Fig. 9.
TPM (RDK) Wheel Sensor (Right Rear) (A69/4)	In right rear wheel. See Fig. 9.
Transmission Oil Temperature Sensor	Integral to electric control unit.
Transmission Oil Temperature Sensor (VGS) (Y3/8s2)	Integral to electric control unit (VGS). See Fig. 55.
Trunk Lid Opening Angle Detection Sensor	Behind left rear quarterpanel.
Turbine Speed Sensor (VGS) (Y3/8n1)	Integral to electric control unit (VGS). See Fig. 55.
Turn Rate & Lateral Acceleration Sensor	Front center of trunk.
Universal Portable CTEL Interface (UPCI (UHI)) Control Module	At left "C" pillar.

Mercedes-Benz CLK550 2008 - SOLENOIDS & SOLENOID VALVES

Mercedes-Benz CLK550 2008 SOLENOIDS & SOLENOID VALVES LOCATION

Component	Location
AC Compressor	Left front of engine.
Activated Charcoal Filter Shutoff Valve	In right rear wheelwell.
Air Pump Switchover Valve (M112) (Y32)	Right front of engine. See Fig. 58.
Air Pump Switchover Valve (M113) (Y32)	Right front of engine. See Fig. 60.
Air Pump Switchover Valve (M156) (Y32)	Top front of engine. See Fig. 63.
BAS Brake Booster	Integral to master cylinder.
BAS Solenoid Valve	Integral to BAS brake booster.
B1 Brake Control Solenoid Valve (VGS) (Y3/8y5)	Integral to electric control unit (VGS). See Fig. 55.
B2 Brake Control Solenoid Valve (VGS) (Y3/8y6)	Integral to electric control unit (VGS). See Fig. 55.
B3 Brake Control Solenoid Valve (VGS) (Y3/8y7)	Integral to electric control unit (VGS). See Fig. 55.
Front Axle Inlet Solenoid Valve	Integral to traction system hydraulic unit.
Front Axle Switchover Solenoid Valve	Integral to traction system hydraulic unit.
Front Axle Vacuum Solenoid Valve	Integral to traction system hydraulic unit.
Glove Compartment CL (ZV) Electromagnetic Actuator	Left rear of trunk.
Heating System Shutoff Valve (Y16/2)	Top right rear of engine. See Fig. 63.
Injectors (6) (M112) (Y62)	Top of left/right cylinder banks. See Fig. 58.
Injectors (8) (M113) (Y62)	Top of left/right cylinder banks. See Fig. 60.
Injectors (8) (M156) (Y62)	Top of left/right cylinder bank. See Fig. 63.
Intake Manifold Tumble Flap Switchover Valve	Top center of engine.
K1 Clutch Control Solenoid Valve (VGS) (Y3/8y2)	Integral to electric control unit (VGS). See Fig. 55.
K2 Clutch Control Solenoid Valve (VGS) (Y3/8y3)	Integral to electric control unit (VGS). See Fig. 55.
K3 Clutch Control Solenoid Valve (VGS)	Integral to electric control unit (VGS). See Fig. 55.
Left Camshaft Exhaust Solenoid (Y49/6)	Top left front of engine. See Fig. 63.
Left Camshaft Intake Solenoid (Y49/4)	Top left front of engine. See Fig. 63.
Left Cylinder Shutoff Valve (M113) (Y81)	Front of left cylinder bank. See Fig. 62.
Left Front Axle Solenoid Valve (Hold)	Integral to traction system hydraulic unit.
Left Front Axle Solenoid Valve (Release)	Integral to traction system hydraulic unit.
Left High Beam Solenoid	Integral to left front headlight unit.
Left Rear Axle Solenoid Valve (Hold)	Integral to traction system hydraulic unit.
Left Rear Axle Solenoid Valve (Release)	Integral to traction system hydraulic unit.
Left Rollover Module Deployment Solenoid (Y57/2)	In left rear seat back. See Fig. 57.
Modulating Pressure Control Solenoid Valve (Y3/6y1)	Integral to electric control unit. See Fig. 54.
Power Steering Pump Pressure Regulator Valve (Y10/1)	Left side of engine.
Purge Control Valve	Left side of engine compartment.
Rear Axle Inlet Solenoid Valve	Integral to traction system hydraulic unit.
Rear Axle Switchover Solenoid Valve	Integral to traction system hydraulic unit.
RHR (KAF) Release Valve	At left wheelwell.
Right Camshaft Exhaust Solenoid (Y49/7)	Top right front of engine. See Fig. 63.
Right Camshaft Intake Solenoid (Y49/5)	Top right front of engine. See Fig. 63.
Right Cylinder Shutoff Valve (M113) (Y80)	Front of right cylinder bank. See Fig. 62.
Right Front Axle Solenoid Valve (Hold)	Integral to traction system hydraulic unit.
Right Front Axle Solenoid Valve (Release)	Integral to traction system hydraulic unit.
Right High Beam Solenoid	Integral to right front headlight unit.
Right Rear Axle Solenoid Valve (Hold)	Integral to traction system hydraulic unit.
Right Rear Axle Solenoid Valve (Release)	Integral to traction system hydraulic unit.
Shift Pressure Control Solenoid Valve (Y3/6y2)	Integral to electric control unit. See Fig. 54.
SPS (PML) Solenoid Valve (Y10)	On steering column. See Fig. 56.
Three-Disk Thermostat Valve	Top left front of engine.
Torque Converter Lockup Clutch Control Solenoid Valve (VGS) (Y3/8y8)	Integral to electric control unit (VGS). See Fig. 55.
Torque Converter Lockup PWM Solenoid Valve (Y3/6y6)	Integral to electric control unit. See Fig. 54.
Variable Intake Manifold Switchover Valve (M112) (Y22/6)	Top front of engine. See Fig. 59.
Variable Intake Manifold Switchover Valve (M113) (Y22/6)	Top front of engine. See Fig. 61.
Variable Intake Manifold Switchover Valve (M156) (Y22/6)	Top front of engine. See Fig. 63.
Working Pressure Control Solenoid Valve (VGS) (Y3/8y1)	Integral to electric control unit. See Fig. 55.
1-2 & 4-5 Shift Solenoid Valve (Y3/6y3)	Integral to electric control unit. See Fig. 54.
2-3 Shift Solenoid Valve (Y3/6y5)	Integral to electric control unit. See Fig. 54.
3-4 Shift Solenoid Valve (Y3/6y4)	Integral to electric control unit. See Fig. 54.

Mercedes-Benz CLK550 2008 - SWITCHES

Mercedes-Benz CLK550 2008 SWITCHES LOCATION

Component	Location
ATA (EDW) Hood Switch	Left front of engine compartment.
BAS Release Switch	Integral to BAS brake booster.
Brake Fluid Indicator Switch	Left rear of engine compartment, on brake fluid reservoir.
Coolant Level Indicator Switch	Right front of engine compartment.
Driver Seat Backrest Release Microswitch	Left side of driver's seat.
Driver Seat Height Release Microswitch	Right side of driver's seat.
Driver-Side Seat Belt Buckle Restraint Systems Switch	In driver's seat belt buckle assembly.
Front Passenger Seat Backrest Release Microswitch	Right side of front passenger's seat.
Front Passenger Seat Height Release Microswitch	Left side of front passenger's seat.
Glove Box Switch (ATA (EDW))	Behind left side of glove box.
Kickdown Switch (S16/6)	Under accelerator pedal assembly. See Fig. 35.
Left Door Contact Switch	On left "B" pillar.
Oil Level Switch	Left rear of engine oil pan. See Fig. 37.
Parking Brake Indicator Switch	On parking brake support bracket.
Passenger-Side Seat Belt Buckle Restraint Systems Switch	In front passenger's seat belt buckle assembly.
Power Locking Switch (S88/14)	Center rear of trunk lid. See Fig. 39.
Right Door Contact Switch	On right "B" pillar.
Ski Bag "closed" Limit Switch (S84/20)	In center of trunk. See Fig. 38.
Soft Top Bow Down/Up Limit Switch	Right rear of soft top well.
Soft Top Bow Limit Switch (Catch)	On left soft top compartment cover.
Soft Top Compartment Cover Limit Switch (Catch)	In left soft top compartment.
Soft Top Compartment Cover Limit Switch (Closed)	Integral to soft top compartment cover switch group (open/close).
Soft Top Compartment Cover Limit Switch (Open)	Integral to soft top compartment cover switch group (open/close).
Soft Top Compartment Cover Switch Group (Open/Close)	Left front of trunk.
Soft Top Limit Switch (Catch)	Right windshield header.
Soft Top Limit Switch (Open)	Behind left quarterpanel.
Soft Top Locked Limit Switch (Left)	Left windshield header.
Starter Lockout Contact	Integral to electric control unit.
Trunk Lid Contact Switch	Center rear of trunk lid.
Variable Soft Top Well Limit Switch	Left side of soft top well.
Windshield Washer Fluid Level Indicator Switch (S42)	In washer fluid reservoir. See Fig. 36.

Mercedes-Benz CLK550 2008 - MISCELLANEOUS

Mercedes-Benz CLK550 2008 MISCELLANEOUS LOCATION

Component	Location
Actual Value Potentiometer (Sliding Contact 1)	Integral to throttle valve actuator.
Actual Value Potentiometer (Sliding Contact 2)	Integral to throttle valve actuator.
Alarm Signal Horn	In right front wheelwell.
Amplifier Module 1 (Screen Antenna)	Top left side of rear window.
AM Trunk Lid Antenna Amplifier (A2/16)	Right side of trunk lid. See Fig. 3.
Audio Amplifier	Right side of luggage compartment.
Battery	Right rear of engine compartment.
Bluetooth Antenna (A2/91)	Left rear of roof. See Fig. 7.
Clock Spring Contact	In steering column.
CTEL Antenna	Center rear of roof.
Cylinder 1, 2 & 3 Ignition Coils (M112) (T1/1 - T1/3)	Top of right cylinder bank. See Fig. 58.
Cylinder 1, 2, 3 & 4 Ignition Coils (M113) (T1/1 - T1/4)	Top of right cylinder bank. See Fig. 60.
Cylinder 1, 2, 3 & 4 Ignition Coils (M156) (T1/1 - T1/4)	Top of right cylinder bank. See Fig. 63.
Cylinder 4, 5 & 6 Ignition Coils (M112) (T1/4 - T1/6)	Top of left cylinder bank. See Fig. 58.
Cylinder 5, 6, 7 & 8 Ignition Coils (M113) (T1/5 - T1/8)	Top of left cylinder bank. See Fig. 60.
Cylinder 5, 6, 7 & 8 Ignition Coils (M156) (T1/5 - T1/8)	Top of left cylinder bank. See Fig. 63.
Data Link Connector	Under left side of dash.
Drive Actual Value Potentiometer	Integral to throttle valve actuator.
Driver Air Bag Ignition Squib 1	In steering wheel.
Driver Air Bag Ignition Squib 2	In steering wheel.
Driver ETR (GUS) Ignition Squib (R12/1)	Near base of left "B" pillar. See Fig. 31.
D2B Telephone & TELE AID Transmitter/Receiver	Front center of trunk.
EGR Vacuum Transducer (M113) (Y31/1)	Right rear of engine. See Fig. 61.
Electrolytic Capacitor 1 (Generator/Battery Harness Noise Suppressor)	Left front of engine compartment.
Electrolytic Capacitor 2 (Generator/Battery Harness Noise Suppressor)	Left front of engine compartment.
Emergency Call Spare Antenna	Left side of rear bumper.
Emergency Call System Antenna Splitter	Right 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	Right front of trunk.
Fanfare Horns (H2)	Right front of engine compartment. See Fig. 14.
Front Passenger Air Bag Ignition Squib 1 (R12/4)	Behind right side of dash. See Fig. 33.
Front Passenger Air Bag Ignition Squib 2 (R12/5)	Behind right side of dash. See Fig. 33.
Front Passenger ETR (GUS) Squib (R12/2)	Near base of right "B" pillar. See Fig. 32.
Garage Door Opener Transmitter Unit	Integral to interior rearview mirror unit.
Generator	Right front of engine.
GPS Antenna	Center of trunk lid.
GPS Antenna Splitter	At right "C" pillar.
Hands-Free System Microphone Group	Integral to interior rearview mirror unit.
Interior Keyless Go Antenna	In center console.
Keyless Go Left Door Antenna	In driver's door.
Keyless Go Rear Bumper Antenna	Center of rear bumper.
Keyless Go Right Door Antenna	In front passenger's door.
Keyless Go Trunk Antenna	Rear center of trunk lid.
Left Antenna Amplifier Module (A2/64)	Under top left side of dash. See Fig. 5.
Left Front IR Receiver	In left front door.
Left Front Side Air Bag Ignition Squib (Sedan)	In driver's door.
Left Front TPM (RDK) Wheel Antenna	Left front wheelwell.
Left Rear ETR Ignition Squib (R12/6)	Under left rear seat. See Fig. 34.
Left Rear Side Air Bag Ignition Squib	Behind left rear quarterpanel.
Left Rear TPM (RDK) Wheel Antenna	Left rear wheelwell.
Left SBE (GUB)	Behind left rear quarterpanel.
Left Window Air Bag Ignition Squib	At left "C" pillar.
Right Antenna Amplifier Module (A2/65)	Under top right side of dash. See Fig. 6.
Right Fanfare Horn	Center front of engine compartment.
Right Front IR Receiver	In right front door.
Right Front Side Air Bag Ignition Squib (Sedan)	In front passenger's door.
Right Front TPM (RDK) Wheel Antenna	Right front wheelwell.
Right Rear ETR Ignition Squib (R12/7)	Under right rear seat. See Fig. 34.
Right Rear Side Air Bag Ignition Squib	Behind right rear quarterpanel.
Right Rear TPM (RDK) Wheel Antenna	Right rear wheelwell.
Right SBE (GUB)	Behind right rear quarterpanel.
Right Window Air Bag Ignition Squib	At right "C" pillar.
Sound Amplifier (A2/13)	At right rear of trunk. See Fig. 2.
Sound Amplifier Microphone	Front center of roof.
Telephone Interface	Right side of trunk.
Throttle Valve Actual Value Potentiometer	Integral to throttle valve actuator.
TV Tuner (A2/42)	Right side of trunk. See Fig. 4.
Two-Disc Thermostat Heating Element (R48)	Top front of engine. See Fig. 63.
Vacuum Transducer (M112) (Y31/1)	Right rear of engine. See Fig. 59.
Washer Nozzle Heater (Left/Right) (R2/1)	On respective rear sides of engine compartment hood. See Fig. 30.
Washer Nozzle Hose Heater	On engine compartment hood.

Mercedes-Benz CLK550 2008 - CONNECTORS

Mercedes-Benz CLK550 2008 CONNECTORS LOCATION

Component	Location
X1/16 (2 Pin)	In left "C" pillar. See Fig. 42.
X1/19 (2 Pin)	In left "C" pillar. See Fig. 43.
X1/20 (2 Pin)	In left "C" pillar. See Fig. 43.
X1/27 (2 Pin)	In right "C" pillar. See Fig. 44.
X1/35 (2 Pin)	Right side of trunk. See Fig. 45.
X4/37 (3 Pin)	Left side of trunk. See Fig. 46.
X18/23 (3 Pin)	Under roof console. See Fig. 47.
X18/33 (3 Pin)	Left front of engine compartment.
X18/36 (2 Pin)	At right kick panel. See Fig. 48.
X18/37 (4 Pin)	In right "C" pillar.
X25/4 (6 Pin)	Left kick panel.
X26/27 (8 Pin)	Behind right side of front bumper.
X28/12 (12 Pin)	Under front of center console.
X30/4 (2 Pin)	In right kick panel. See Fig. 49.
X30/6 (2 Pin)	At left kick panel.
X30/7 (2 Pin)	At left kick panel.
X30/8 (8 Pin)	At right kick panel. See Fig. 50.
X30/12 (2 Pin)	Under left doorsill.
X35/27 (4 Pin)	At right kick panel.
X35/28 (6 Pin)	Right side of trunk.
X35/33 (6 Pin)	At right kick panel.
X35/37 (6 Pin)	In left "C" pillar.
X35/56 (8 Pin)	Left rear of engine compartment.
X36/3 (5 Pin)	Under left rear seat. See Fig. 51.
X39/5 (10 Pin)	Under front of center console. See Fig. 52.
X39/36 (4 Pin)	At right kick panel.
X55/3 (4 Pin)	Under driver's seat.
X58/3 (2 Pin)	Over right rear wheelwell. See Fig. 53.
X62/6 (4 Pin)	In right front wheelwell.
X62/7 (4 Pin)	In left front wheelwell.
X62/8 (4 Pin)	In right rear wheelwell.
X63/4 (3 Pin)	Under left doorsill.
X85/9 (2 Pin)	Under left doorsill.
X88/7 (2 Pin)	In engine compartment hood.
X88/11 (2 Pin)	Under left doorsill.

Mercedes-Benz CLK550 2008 - GROUNDS

Mercedes-Benz CLK550 2008 GROUNDS LOCATION

Component	Location
W6	At left rear wheelwell. See Fig. 66.
W6/1	Left rear corner of trunk. See Fig. 67.
W7	At right rear wheelwell. See Fig. 68.
W7/1	Near right taillight, in trunk.
W9	Left front of engine compartment. See Fig. 69.
W10	At right rear of engine compartment. See Fig. 70.
W11	Right front of engine. See Fig. 82.
W11/1	Left front of engine. See Fig. 71.
W11/3	Left side of engine compartment. See Fig. 72.
W13	Beside right rear seat. See Fig. 40.
W14	Left rear of trunk. See Fig. 73.
W16/3	At left front of engine compartment. See Fig. 74.
W16/4	Right front of engine compartment. See Fig. 41.
W16/5	Left rear of engine compartment. See Fig. 75.
W18	At left doorsill. See Fig. 76.
W19	At right doorsill. See Fig. 77.
W26	Front of center console. See Fig. 78.
W28/1	At left doorsill. See Fig. 79.
W28/2	At right doorsill. See Fig. 80.
W29/3	Left "C" pillar. See Fig. 81.

Mercedes-Benz CLK550 2008 - SPLICES

Mercedes-Benz CLK550 2008 SPLICES LOCATION

Component	Location
Z3/29z1	Top of engine.
Z3/29z2	Top front of engine.
Z3/31	Under left side of center console.
Z6/1	Left side of trunk.
Z6/8	In front SAM control module.
Z6/26	In front SAM control module.
Z6/27	In front SAM control module.
Z7/26	At base of right "A" pillar.
Z7/35	Top front of engine.
Z7/36	In front SAM control module.
Z7/46	Left rear of trunk.
Z20/62	Left rear wheelwell.
Z36/1	Right rear of trunk.
Z36/2	Right rear of trunk.
Z36/3	Left front wheelwell.
Z36/4	Left front wheelwell.
Z81	Behind left side of dash.
Z81/4	Under left side of center console.
Z85	In front SAM control module.
Z87/15	At right "C" pillar.
Z87/22	Near right rear wheelwell.
Z87/23	Near right rear wheelwell.