Mercedes-Benz S500 2005 - 2005 MERCEDES-BENZ S430, S500, S55 & S600

Mercedes-Benz S500 2005 - BUZZERS, RELAYS & TIMERS

Mercedes-Benz S500 2005 BUZZERS, RELAYS & TIMERS LOCATION

Component	Location
Charge Air Relay	Right rear of engine compartment.
Circuit 15 Relay	In rear fuse/relay box. See Fig. 7.
Engine Electronic/Chassis Relay	Right rear of engine compartment. See Fig. 13.
Fuel Pump Relay	In rear fuse/relay box. See Fig. 7.
Intank Fuel Pump Relay	Right rear of engine compartment.
Motronic Relay	Right rear of engine compartment.
Rear Screen Blind Relay	In rear fuse/relay box. See Fig. 7.
Rear Window Defrost Relay	In rear fuse/relay box. See Fig. 7.
Secondary Air Pump Relay	Right rear of engine compartment. See Fig. 13.
Starter Relay	Right rear of engine compartment. See Fig. 13.
Towing Sensor Relay	In rear fuse/relay box. See Fig. 7.
Wiper On/Off Relay	In left front fuse/relay module. See Fig. 8.
Wiper Park Position Heater Relay	In left front fuse/relay module. See Fig. 8.
Wiper Stage 1 & 2 Relay	In left front fuse/relay module. See Fig. 8.

Mercedes-Benz S500 2005 - CIRCUIT PROTECTION DEVICES

Mercedes-Benz S500 2005 CIRCUIT PROTECTION DEVICES LOCATION

Component	Location
Left Front Fuse/Relay Module	Left rear of engine compartment. See Fig. 6.
Rear Fuse/Relay Module	Under right rear seat. See Fig. 9.
Right Front Fuse/Relay Module	Right rear of engine compartment. See Fig. 10.
Interior Right Front Footwell Terminal Block And Fuse Block	Right Front Footwell. See Fig. 14 and Fig. 15 .

Mercedes-Benz S500 2005 - CONTROL UNITS

Mercedes-Benz S500 2005 CONTROL UNITS LOCATION

Component	Location
AB Control Module	In center console.
Active Body Control (ABC) Control Module	Left rear of engine compartment.
Electronic Selector Lever Control Module	Under center console, at base of selector lever assembly.
Electronic Stepper Motor Control Module	In center console.
Engine Control Module (ME-SFI)	Right rear of engine compartment. See Fig. 12.
ETC Control Module	Right rear of engine compartment.
Left Front Door Control Module	In left front door.
Left Front ESA Control Module (With Memory)	Under left front seat.
Left Front SAM Control Module	In fuse/relay box, left side. See Fig. 8.
Pneumatic Suspension With ADS Control Module	In left fuse/relay box.
PSE Control Module	Left side of trunk. See Fig. 11.
Rear A/C Electronic Blower Regulator	In rear of center console.
Rear Multi-Contour Backrest Control Module	In driver's backrest.
Rear SAM Control Module	Under right rear seat. See Fig. 9.
Right Front Door Control Module	In right front door.
Right Front ESA Control Module (With Memory)	Under right front seat.
Right Front SAM Control Module	In fuse/relay box, right side. See Fig. 10.
Right Rear Door Control Module	In right rear door.
Roof Control Unit Control Module	Center front of roof.
Steering Column Module	At top of steering column.
Suction Cooling Fan Control Module	Behind right front bumper.
Traction System Hydraulic Unit	Left front of engine compartment. See Fig. 6.

Mercedes-Benz S500 2005 - MOTORS

Mercedes-Benz S500 2005 MOTORS LOCATION

Component	Location
Air Distribution (Up/Down) Actuator Motor	Behind center of dash.
Air Suspension Compressor Unit	Under right front of vehicle.
Backrest Adjustment Motor (Fore/Aft) (Left Front)	In backrest of left front seat.
Backrest Adjustment Motor (Fore/Aft) (Right Front)	In backrest of right front seat.
Coolant Circulation Pump	In left rear of engine compartment.
Electric Air Pump (Engine 113)	On front center of engine.
Electric Air Pump (Engine 275)	On left front of engine. See Fig. 4.
ESC Motor Group	On steering column.
Fresh Air/Recirculated Air Actuator Motor	Behind right side of dash.
Front Seat Adjustment Motor (Fore/Aft)	Under left front seat.
Front Seat Adjustment Motor (Fore/Aft)	Under right front seat.
Front Seat Adjustment Motor (Raise/Lower)	Under left front seat.
Front Seat Adjustment Motor (Raise/Lower)	Under right front seat.
Fuel Pump	Left rear of vehicle.
HCS Pump	Right front of engine compartment.
Head Restraint Adjustment Motor (Raise/Lower) (Left Front)	In backrest of left front seat.
Head Restraint Adjustment Motor (Raise/Lower) (Right Front)	In backrest of right front seat.
High-Pressure/Return Pump	Behind left headlamp unit.
Left Center Vent Diverter Flap Actuator Motor	Right side of steering column.
Left Center Vent Temperature Control Actuator Motor	Right side of steering column.
Left Defroster Vent Flap Actuator Motor	Right side of steering column.
Left Footwell Flap Actuator Motor	Under center console.
Left Front ESA Motor Group (With Memory)	Under left front seat.
Left Headlamp Range Adjuster	Left front of engine compartment.
Multicontour Seat Pneumatic Pump	Left side of trunk.
Rear Blower Motor	In rear of center console.
Rear Seat Adjustment Motor (Raise/Lower) (Left Front)	Under left front seat.
Rear Seat Adjustment Motor (Raise/Lower) (Right Front)	Under right front seat.
Rear Window Sun Shade Motor	Under center of rear window shelf.
Recirculated Air Flap Actuator	Rear center of engine compartment.
Right Center Vent Diverter Flap Actuator Motor	Behind center of dash.
Right Defroster Vent Flap Actuator Motor	Under center of dash.
Right Footwell Flap Actuator Motor	Under center console.
Right Front ESA Motor Group (With Memory)	Under right front seat.
Right Headlamp Range Adjuster	Right front of engine compartment.
Right Seat Fore/Aft Adjustment Motor	Under right rear seat.
Seat Cushion Adjustment Motor (Fore/Aft) (Left Front)	Under left front seat.
Seat Cushion Adjustment Motor (Fore/Aft) (Right Front)	Under right front seat.
Sliding/Pop-Up Roof Drive Assembly	At front center of roof.
Telescopic Adjustment Motor (In/Out)	Right side of steering column.
Throttle Valve Actuator	Rear top center of engine. See Fig. 1.
Windshield Washer Fluid Pump	Right front of engine compartment.
Wiper Motor	Left rear of engine compartment. See Fig. 8.

Mercedes-Benz S500 2005 - SENDING UNITS & SENSORS

Mercedes-Benz S500 2005 SENDING UNITS & SENSORS LOCATION

Component	Location
ABS Lateral Acceleration Sensor	Under right rear seat. See Fig. 6.
A/C Multi-Function Sensor	Right rear of engine compartment.
Air Suspension Pressure Sensor	Under right front of vehicle.
Ambient Temperature Display Temperature Sensor	Behind left side of front bumper. See Fig. 8.
ATA Tow Sensor	Under right rear seat.
Brake Pad Wear Sensor (Left Front)	Behind left front wheel.
Brake Pad Wear Sensor (Left Rear)	Behind left rear wheel.
Brake Pad Wear Sensor (Right Front)	Behind right front wheel.
Brake Pad Wear Sensor (Right Rear)	Behind right rear wheel.
Camshaft Hall Effect Sensor	On right front side of engine.
Camshaft Hall Effect Sensor (Left)	At rear of left valve cover. See Fig. 3.
Camshaft Hall Effect Sensor (Right)	At rear of right valve cover. See Fig. 3.
Charge Air Temperature Sensor (275)	On top front of engine. See Fig. 1.
Charge Pressure Control Vacuum Transducer	On rear of engine. See Fig. 2.
Coolant Temperature Sensor (Engine 275)	On front of engine. See Fig. 4.
Crankshaft Position Sensor (Engine 113)	Left rear of engine block.
Crankshaft Position Sensor (Engine 275)	On top rear of engine. See Fig. 3.
Driver-Side Frontal Acceleration Sensor	Left front of engine compartment.
ECT Sensor	On front center of engine.
EGR Pressure Transducer	Center rear of engine.
ESP Brake Pressure Sensor	Behind left headlamp unit. See Fig. 6.
ESP Yaw Rate Sensor	Under right rear seat.
Evaporator Temperature Sensor	In center console.
Front Knock Sensor (Left) (Engine 275)	On front left side of engine. See Fig. 5.
Front Knock Sensor (Right) (Engine 275)	On right front side of engine. See Fig. 5.
Fuel Level Sensor	Center front of trunk.
Fuel Tank Pressure Sensor	Center front of trunk.
Hot Film MAF Sensor	At center rear of engine compartment.
Intake Air Temperature Sensor	Rear center of engine compartment.
Left Airbag And Left Window Airbag Sensor	Under left rear seat.
Left Front Body Acceleration Sensor	Left side of engine compartment.
Left Front Level Sensor	At left front wheelhouse.
Left Front Plunger Travel Sensor	Left rear of engine compartment.
Left Front VSS	Left front wheelhouse.
Left Front Wheel Acceleration Sensor	Left side of engine compartment.
Left Heater Core Temperature Sensor	In center console.
Left Knock Sensor 2	Below intake manifold.
Left O2S 1 (Before TWC)	Left rear of engine compartment.
Left O2S 2 (After TWC)	Under left front of vehicle.
Left Rear Heater Core Temperature Sensor	In center console.
Left Rear VSS	Left rear wheelhouse.
Membrane Travel Sensor Connector	Left rear of engine compartment.
Oil Sensor (Level, Temperature, Quality)	Lower right side of engine.
Oil Sensor (Level, Temperature, Quality) (Engine 275)	Lower left side of engine. See Fig. 4.
Passenger Seat Occupied And Child Seat Recognition Sensor	Right front of engine compartment.
Passenger-Side Frontal Acceleration Sensor	Right front of engine compartment.
Pedal Value Sensor	On accelerator pedal. See Fig. 12.
Pressure Sensor (Downstream Of Throttle Valve Actuator)	Top front of engine. See Fig. 2.
Pressure Sensor (Left & Right)	On right front of engine. See Fig. 1.
PTS Sensor Assembly (Rear Bumper)	Behind rear bumper.
Rear Axle Level Sensor	Under rear center of vehicle.
Rear Evaporator Temperature Sensor	Rear of center console.
Rear Knock Sensor (Left) (Engine 275)	On rear left side of engine. See Fig. 5.
Rear Knock Sensor (Right) (Engine 275)	On right rear side of engine. See Fig. 5.
Refrigerant Temperature Sensor	In left front of engine compartment.
Right Airbag And Right Window Airbag Sensor	Under right rear seat.
Right Front Body Acceleration Sensor	Right side of engine compartment.
Right Front Level Sensor	Right front wheelhouse.
Right Front Plunger Travel Sensor	Right rear of engine compartment.
Right Front VSS	Right front wheelhouse.
Right Front Wheel Acceleration Sensor	Right side of engine compartment.
Right Heater Core Temperature Sensor	In center console.
Right Knock Sensor 1	Below intake manifold.
Right O2S 1 (Before TWC)	Right rear of engine compartment.
Right O2S 2 (After TWC)	Under right front of vehicle.
Right Rear Body Acceleration Sensor	Right side of trunk.
Right Rear Heater Core Temperature Sensor	Rear of center console.
Right Rear Plunger Travel Sensor	At right "C" pillar.
Right Rear VSS	At right rear wheelhouse.
Wheel Speed Sensor (4)	At each wheel. See Fig. 6.

Mercedes-Benz S500 2005 - SOLENOIDS & SOLENOID VALVES

Mercedes-Benz S500 2005 SOLENOIDS & SOLENOID VALVES LOCATION

Component	Location
AIR Pump Switch-Over Valve	On right front of engine compartment. See Fig. 2.
Divert Air Switch-Over Valve	On rear of engine. See Fig. 2.
Fuel Injector Cylinder 1	On right side of engine.
Fuel Injector Cylinder 2	On right side of engine.
Fuel Injector Cylinder 3	On right side of engine.
Fuel Injector Cylinder 4	On right side of engine.
Fuel Injector Cylinder 5	On left side of engine.
Fuel Injector Cylinder 6	On left side of engine.
Fuel Injector Cylinder 7	On left side of engine.
Fuel Injector Cylinder 8	On left side of engine.
Left Cylinder Bank Switch-Off Valve	Left side of engine. See Fig. 4.
Left Duovalve	Left rear of engine compartment.
Left Front Axle Damper Valve Assembly	At left front wheelhouse.
Left Front Seat Belt Comfort Feature Solenoid	At base of left "B" pillar.
Left Head Restraint Raise Valve	Under left rear window shelf.
Left Rear Axle Damper Valve Assembly	At left rear wheelhouse.
Left Rear Seat Belt Comfort Feature Solenoid	Under left rear window shelf.
Level Regulating Valve Assembly	Under right front of vehicle.
Middle Head Restraint Raise Valve	Under center of rear window shelf.
Purge Control Valve	Left rear of engine compartment.
Rear Refrigerant Shut-Off Valve	At left front wheelhouse.
Release Switch/Solenoid Valve Connector	Left rear of engine compartment.
Right Cylinder Bank Switch-Off Valve	Right side of engine. See Fig. 4.
Right Duovalve	Left rear of engine compartment.
Right Head Restraint Raise Valve	Under right rear window shelf.
Right Rear Axle Damper Valve Assembly	At right rear wheelhouse.
SPS P-Valve	On power steering pump.

Mercedes-Benz S500 2005 - SWITCHES

Mercedes-Benz S500 2005 SWITCHES LOCATION

Component	Location
Brake Fluid Indicator Switch	Left rear of engine compartment.
ECL Switch	Right front of engine compartment.
ECL/Windshield Washer Fluid Level Switch	Right front of engine compartment.
Engine Hood Close Switch (ATA)	Right front of vehicle.
Left Front Door CA Microswitch	In left front door.
Left Rear Door Pull Contact Microswitch	In left rear door handle.
Left Rear Seat Belt Buckle/Belt Comfort Feature Switch	In left rear seat belt buckle.
Parking Brake Switch	On parking brake support bracket.
Right Rear Seat Belt Buckle/Belt Comfort Feature Switch	In right rear seat belt buckle.
Stop Lamp Switch	On top of brake pedal.
Tilt Adjustment Microswitch	On steering column.
Trunk Lid CA Microswitch	At rear of trunk lid.
Trunk Lid Lock Switch (CF)	At rear of trunk lid.
Windshield Washer Fluid Level Indicator Switch	Right front of engine compartment.

Mercedes-Benz S500 2005 - MISCELLANEOUS

Mercedes-Benz S500 2005 MISCELLANEOUS LOCATION

Component	Location
Alarm Siren With Auxiliary Battery	At left front wheelhouse.
Audio Amplifier	Right side of luggage compartment.
Battery	Right side of trunk.
CTEL/GPS Roof Antenna	At rear center of roof.
CTEL Interface	Under right rear seat.
CTEL Transmitter-Receiver	Left side of trunk.
Cylinder 1 Ignition Coil	On right side of engine.
Cylinder 2 Ignition Coil	On right side of engine.
Cylinder 3 Ignition Coil	On right side of engine.
Cylinder 4 Ignition Coil	On right side of engine.
Cylinder 5 Ignition Coil	On left side of engine.
Cylinder 6 Ignition Coil	On left side of engine.
Cylinder 7 Ignition Coil	On left side of engine.
Cylinder 8 Ignition Coil	On left side of engine.
Data Link Connector	At upper left footwell.
Driver ETR Squib	Bottom of left "B" pillar.
Fanfare Horns	Behind front bumper.
Generator (Engine 275)	On front of engine. See Fig. 5.
Left Front IR Receiver Unit	In left front door.
Left Window Airbag Squib	At left "C" pillar.
LR ETR Squib	At left "C" pillar.
Passenger ETR Squib	Bottom of right "B" pillar.
Passenger Side AB Squib 1	Right side of dash.
Passenger Side AB Squib 2	Right side of dash.
Right Front Door Airbag Squib	In right front door.
Right Front IR Receiver Unit	In right front door.
Right Window Airbag Squib	At right "C" pillar.
RR ETR Squib	At right "C" pillar.
Top Rear Window Antenna Amplifier	Center rear of roof.

Mercedes-Benz S500 2005 - CONNECTORS

Mercedes-Benz S500 2005 CONNECTORS LOCATION

Component	Location
X4/10	Front passenger footwell.
X8/4 (10 Pin)	Right front of trunk.
X18 (14 Pin)	Left front footwell.
X20/1	At left "C" pillar.
X25/8 (28 Pin)	At right "C" pillar.
X28/12 (10 Pin)	In right front door.
X30/4	Right front door sill.
X30/5	Left front door sill.
X30/6	Upper left footwell.
X35/28 (6 Pin)	Right rear of trunk.
X35/66 (14 Pin)	At left front door sill.
X55/3	Under left front seat.
X55/4	Under right front seat.
X58/3	Under right rear seat.
X62/6 (5 Pin)	Right side of engine compartment.
X62/7 (5 Pin)	Left side of engine compartment.
X62/8 (D)	Under right rear seat.
X62/8 (E)	Under left rear seat.
X64/3	Right rear of engine compartment.
X85/1 (10 Pin)	Left rear of engine compartment.
X86	Right rear of engine compartment.

Mercedes-Benz S500 2005 - GROUNDS

Mercedes-Benz S500 2005 GROUNDS LOCATION

Component	Location
W2	Right side of engine compartment.
W3/6	Behind right headlight unit.
W6	At left front of trunk.
W7/1	Near right taillight.
W9	Left side of engine compartment.
W10	At right rear of trunk.
W11/3	Left front of engine compartment.
W13	At left "C" pillar.
W15/2	At left footwell.
W16/5	At left rear of engine compartment.
W16/6	Right rear of engine compartment.
W17/1	Under left rear seat.
W26/27	Right front of engine compartment.
W28/1	At left door sill.
W28/2	At right door sill.
W36/1	At right footwell.
W36/2	At right footwell.
W50	At right front door sill.
W50/1	At left front door sill.
W50/2	Under right rear seat.

Mercedes-Benz S500 2005 - SPLICES

Mercedes-Benz S500 2005 SPLICES LOCATION

Component	Location
Z3	Behind center of dash.
Z3/4	Behind center of dash.
Z3/12	Under right rear seat.
Z3/26	Right rear door sill.
Z3/29 (1)	Left rear of engine compartment.
Z3/29 (2)	Right rear of engine compartment.
Z4/1	Right rear interior compartment.
Z4/3 (1)	Behind center of dash.
Z4/4	Right front door sill.
Z6	Behind center of dash.
Z6/1	Right rear interior compartment.
Z6/1 (1)	Right side of trunk.
Z6/16	Behind center of dash.
Z6/30	Right front interior compartment.
Z6/33 (1)	Behind center of dash.
Z6/33 (2)	Behind center of dash.
Z6/33 (4)	Behind center of dash.
Z7/5	Right front door sill.
Z7/21	Behind center of dash.
Z7/32	Behind center of dash.
Z7/36 (1)	Right front of engine compartment.
Z7/36 (2)	Right front of engine compartment.
Z7/40	In left fuse/relay box.
Z7/40 (ESP)	In left fuse/relay box.
Z11/3	Right front interior compartment.
Z11/4	Right front interior compartment.
Z28/25	Right front interior compartment.
Z28/26	Right front interior compartment.
Z28/35	Right rear door sill.
Z35/1	Left front door sill.
Z35/2	Left front door sill.
Z35/10	Left front door sill.
Z36/1	Right side of trunk.
Z36/2	Right side of trunk.
Z36/3	Right front of engine compartment.
Z36/4	Right front of engine compartment.
Z36/8	Behind center of dash.
Z36/9	Behind center of dash.
Z36/10	Behind center of dash.
Z37/2	Left front door sill.
Z37/3	Left front door sill.
Z37/8	Behind center of dash.
Z37/13	Behind center of dash.
Z37/14	Behind center of dash.
Z52/5	Left front interior compartment.
Z73	Right front door sill.
Z73 (1)	Right front door sill.
Z73/1	Left front door sill.
Z73/1 (1)	Left front door sill.
Z73/2	Right front door sill.
Z73/3	Under right rear seat.
Z81	Behind center of dash.
Z81/4	Left front door sill.
Z82/6	Right rear interior compartment.
Z87/17	Left rear door sill.
Z87/18	Left rear door sill.
Z88	Left front door sill.
Z89	Left front door sill.
Z107	Right rear of engine compartment.
Z108	Right rear of engine compartment.