Mercedes-Benz S500 1997 - 1997 MERCEDES-BENZ S320, S420, S500 & S600

Mercedes-Benz S500 1997 - BUZZERS, RELAYS & TIMERS

Mercedes-Benz S500 1997 BUZZERS, RELAYS & TIMERS

Component	Component Location
Combination Relay	On left rear corner of engine compartment.
High Pressure/Return Pump Relay (ESP & SPS)	On left side of engine compartment. See Fig. 2 .
High Pressure/Return Pump Relay W/ Traction Systems (ASR, ETS) & SPS	On left side of engine compartment. See Fig. 1 .
Immobilizer Relay	Behind top right side of dash.

Mercedes-Benz S500 1997 - CIRCUIT PROTECTION DEVICES

Mercedes-Benz S500 1997 CIRCUIT PROTECTION DEVICES

Component	Component Location
Fuse & Relay Box	On left rear corner of engine compartment.
Rear Fuse Box	In luggage compartment, behind right trim panel.

Mercedes-Benz S500 1997 - CONTROL UNITS

Mercedes-Benz S500 1997 CONTROL UNITS

Component	Component Location
AIR Relay Module (S420 & S500)	On left rear of engine compartment. See Fig. 5 .
AIR Relay Module (S600)	On left rear of engine compartment. See Fig. 9 .
Anti-Theft Alarm (ATA) Control Module	On right side of luggage compartment, behind trim panel.
ASR/ETS/ESP Hydraulic Unit (ESP & SPS)	On left side of engine compartment. See Fig. 2 .
ASR/ETS/ESP Hydraulic Unit W/ Traction Systems (ASR, ETS) & SPS	On left side of engine compartment. See Fig. 1 .
ASR/SPS Control Module (ASR Only) W/ Traction Systems (ASR, ETS) & SPS	In module box, on right rear of engine compartment. See Fig. 1 .
Base Module (BM) W/ Traction Systems (ASR, ETS) & SPS	In module box, on right rear of engine compartment. See Fig. 1 .
Base Module (ESP & SPS)	In module box, on right rear of engine compartment. See Fig. 2 .
Base Module (BM) (S420 & S500)	In module box, on right rear of engine compartment. See Fig. 5 .
Base Module (S600)	In module box, on right rear of engine compartment. See Fig. 9 .
Convenience Control Module	On right side of luggage compartment, behind trim panel.
Daytime Driving Lamp Control Module	Behind Center of dash.
Engine Control Module (ME-SFI) (S420 & S500)	In module box, on right rear of engine compartment. See Fig. 5 .
Engine Control Module (ME-SFI) (Left) (S600)	In module box, on right rear of engine compartment. See Fig. 9 .
Engine Control Module (ME-SFI) (Right) (S600)	In module box, on right rear of engine compartment. See Fig. 9 .
ESP/SPS Control Module (ESP & SPS)	In module box, on right rear of engine compartment. See Fig. 2 .
ETS/SPS Control Module (ETS Only) W/ Traction Systems (ASR, ETS) & SPS	In module box, on right rear of engine compartment. See Fig. 1 .
Fuel Pump (FP) Relay Module (S420 & S500)	On right side of trunk. See Fig. 5 .
Fuel Pump (FP) Relay Module (S600)	On right side of trunk. See Fig. 9 .
Infrared Interior Motion Sensor Control Module	On right side of trunk.
Infrared Remote Central Locking (IRCL) Control Module	On right rear of engine compartment.
Infrared Remote Control Module (Coupe)	On left side rear of passenger compartment, behind trim panel.
Infrared Remote Control Module (Sedan)	On right side of luggage compartment, behind trim panel.
Lamp Failure Monitoring Unit	On left rear of engine compartment.
Parktronic System (PTS) Control Module	Below right rear seat.
Pulse Module	Lower left front corner of engine.
Seat Belt Reminder Control Module	Behind left center of dash.
Starter Lock-Out Relay Module (S420, S500 & S600)	On right rear corner of engine compartment. See Fig. 3 .
Transmission Control Module (S420, S500 & S600)	In module box, on right rear of engine compartment. See Fig. 3 .

Mercedes-Benz S500 1997 - MOTORS

Mercedes-Benz S500 1997 MOTORS

Component	Component Location
Activated Charcoal Filter Actuator	On center front of cowl, near blower motor.
ASR/ESP Charging Pump (ESP & SPS)	On lower left rear corner of engine compartment. See Fig. 2 .
Automatic Antenna	On left side of trunk.
Auxiliary Fans (2)	On front of engine compartment.
Blower Motor	Center front of cowl.
Electronic Accelerator (EA)/ Cruise Control (CC)/ Idle Speed Control (ISC) Actuator (S420)	On top center of engine.
Electronic Accelerator (EA)/ Cruise Control (CC)/ Idle Speed Control (ISC) Actuator (Left) (S500 & S600)	On right side of engine.
Electronic Accelerator (EA)/ Cruise Control (CC)/ Idle Speed Control (ISC) Actuator (Right) (S500 & S600)	On left side of engine.
Washer Pump	On washer fluid reservoir.

Mercedes-Benz S500 1997 - SENDING UNITS & SENSORS

Mercedes-Benz S500 1997 SENDING UNITS & SENSORS

Component	Component Location
ABS Lateral Acceleration Sensor (ESP & SPS)	On center rear, underside of vehicle. See Fig. 2 .
ABS Lateral Acceleration Sensor W/ Traction Systems (ASR, ETS) & SPS (S420, S500 & S600)	On center rear, underside of vehicle. See Fig. 1 .
Body Acceleration Sensor	On left front of engine compartment.
Camshaft Hall-Effect Sensor (Left) (S600)	On top front of engine. See Fig. 8 .
Camshaft Hall-Effect Sensor (Right) (S600)	On top front of engine. See Fig. 8 .
Camshaft Hall Sensor (S420)	On top left front of engine.
CKP Sensor (Left) (S600)	On left rear of engine. See Fig. 7 .
CKP Sensor (Right) (S600)	On right rear of engine. See Fig. 7 .
Crankshaft Position Sensor (S420)	On left rear of engine.
ECT Sensor (Left) (S600)	On left front of engine. See Fig. 8 .
ECT Sensor (Right) (S600)	On right front of engine. See Fig. 8 .
Engine Coolant Temperature Sensor (A/C)	On top left front corner of engine.
Engine Coolant Temperature Sensor (S420)	On top front of engine.
ESP Brake Pressure Sensor (ESP & SPS)	On lower left rear of engine compartment. See Fig. 2 .
ESP Yaw Rate Sensor (ESP & SPS)	On left side of trunk. See Fig. 2 .
Evaporator Temperature Sensor	On left side of evaporator housing, above accelerator pedal.
Front Axle VSS Sensor (Left) W/ Traction Systems (ASR, ETS) & SPS	On left front wheel hub assembly. See Fig. 1 .
Front Axle VSS Sensor (Right) W/ Traction Systems (ASR, ETS) & SPS	On right front wheel hub assembly. See Fig. 1 .
Front VSS Sensor (Left) (ESP & SPS)	On left front wheel hub assembly. See Fig. 2 .
Front VSS Sensor (Right) (ESP & SPS)	On right front wheel hub assembly. See Fig. 2 .
Fuel Level Sensor	On top, in fuel tank.
Fuel Tank Pressure Sensor	On top of fuel level sensor, in fuel tank.
Heater Core Temperature Sensors	Behind center of dashboard, below radio.
Hot Film Mass Air Flow Sensor (S420)	On top center of engine.
Hot Film MAF Sensor (Left) (S600)	On right side air intake. See Fig. 7 .
Hot Film MAF Sensor (Right) (S600)	On left side air intake. See Fig. 7 .
IAT Sensor (Left) (S600)	On right side air intake. See Fig. 7 .
IAT Sensor (Right) (S600)	On left side air intake. See Fig. 7 .
In-Car Temperature Sensor (A/C)	In dome lamp assembly.
Infrared Transmitter/Receiver & Motion Sensors (Left & Right)	On top of left & right "B" pillars.
Intake Air Temperature Sensor (S420)	In air intake.
Knock Sensors (2) (S420)	On top of engine.
Knock Sensors (2) (Left) (S600)	On top left side of engine.
Knock Sensors (2) (Right) (S600)	On top right side of engine.
Outside Temperature Sensor	Left rear side of engine compartment.
Oxygen Sensor 1 (Left) (Before TWC) (S420 & S500)	On left exhaust pipe, in front of TWC. See Fig. 6 .
Oxygen Sensor 1 (Left) (Before TWC) (S600)	On left exhaust pipe, in front of TWC. See Fig. 10 .
Oxygen Sensor 1 (Right) (Before TWC) (S420 & S500)	On right exhaust pipe, in front of TWC. See Fig. 6 .
Oxygen Sensor 1 (Right) (Before TWC) (S600)	On right exhaust pipe, in front of TWC. See Fig. 10 .
Oxygen Sensor 2 (Left) (After TWC) (S420 & S500)	On left exhaust pipe, after TWC. See Fig. 6 .
Oxygen Sensor 2 (Left) (After TWC) (S600)	On left exhaust pipe, after TWC. See Fig. 10 .
Oxygen Sensor 2 (Right) (After TWC) (S420 & S500)	On right exhaust pipe, after TWC. See Fig. 6 .
Oxygen Sensor 2 (Right) (After TWC) (S600)	On right exhaust pipe, after TWC. See Fig. 10 .
Parktronic System (PTS) Bumper Sensors (10)	On front & rear bumpers.
Pedal Value Sensor (S600)	On accelerator linkage.
Pressure Sensor (S420 & S500)	On top front of engine.
Pressure Sensor (Left) (S600)	On left front of engine. See Fig. 8 .
Pressure Sensor (Right) (S600)	On left front of engine. See Fig. 8 .
Rear Axle VSS Sensor (Left) W/ Traction Systems (ASR, ETS) & SPS	On left rear wheel hub assembly. See Fig. 1 .
Rear Axle VSS Sensor (Right) W/ Traction Systems (ASR, ETS) & SPS	On right rear wheel hub assembly. See Fig. 1 .
Rear Body Acceleration Sensor	In front center of luggage compartment.
Rear VSS Sensor (Left) (ESP & SPS)	On left rear wheel hub assembly. See Fig. 2 .
Rear VSS Sensor (Right) (ESP & SPS)	On right rear wheel hub assembly. See Fig. 2 .
Refrigerant Pressure Sensor	Left front corner of engine compartment.
Refrigerant Temperature Sensor	Left front corner of engine compartment.
Steering Angle Sensor (ESP & SPS)	In top of steering column. See Fig. 2 .
Sun Sensor	Top center of dash.

Mercedes-Benz S500 1997 - SOLENOIDS & SOLENOID VALVES

Mercedes-Benz S500 1997 SOLENOIDS & SOLENOID VALVES

Component	Component Location
Activated Charcoal Canister Shut-Off Valve (S420, S500 & S600)	Under left rear of vehicle, near charcoal canister.
Adjustable Camshaft Timing Solenoid (Left) (S600)	On left front of engine. See Fig. 8 .
Adjustable Camshaft Timing Solenoid (Right) (S600)	On right front of engine. See Fig. 8 .
Air Pump Switchover Valve (S600)	On right side of engine, near (MAF) sensor. See Fig. 7 .
Master Brake Cylinder Switchover Valve (ESP & SPS)	On brake master cylinder. See Fig. 2 .
Master Brake Cylinder Switchover Valve W/ Traction Systems (ASR, ETS) & SPS (S420, S500 & S600)	On brake master cylinder. See Fig. 1 .
Purge Control Valve (S420 & S500)	On left side of engine compartment.
Purge Control Valve (Left) (S600)	On right side of engine compartment, near data link connector.
Purge Control Valve (Right) (S600)	On left side of engine compartment, near body acceleration sensor.
Rear Refrigerant Shut-Off Valve	On lower left rear corner of engine compartment.
R/P Lock Solenoid	On gear shift selector assembly. See Fig. 4 .

Mercedes-Benz S500 1997 - SWITCHES

Mercedes-Benz S500 1997 SWITCHES

Component	Component Location
ASR Off Switch (ASR Only) W/ Traction Systems (ASR, ETS) & SPS	On center of dash. See Fig. 1 .
Back-Up Lamp Switch	On gear shift selector assembly. See Fig. 4 .
ESP Off Switch (ESP & SPS)	On center of dash. See Fig. 2 .
Kickdown Switch	Under accelerator pedal. See Fig. 4 .
Oil Level Indicator Switch (S420)	On right side of oil pan.
Oil Level Switch (S600)	On right side of engine. See Fig. 8 .
Parking Brake Switch (ESP & SPS)	At top of parking brake assembly. See Fig. 2 .
Parking Brake Switch W/ Traction Systems (ASR, ETS) & SPS	At top of parking brake assembly. See Fig. 1 .
Stop Lamp Switch (ESP & SPS)	At top of brake pedal. See Fig. 2 .
Stop Lamp Switch W/ Traction Systems (ASR, ETS) & SPS	At top of brake pedal. See Fig. 1 .
Transmission Range Recognition Switch (Voltage Coded)	On gear shift selector assembly. See Fig. 4 .

Mercedes-Benz S500 1997 - MISCELLANEOUS

Mercedes-Benz S500 1997 MISCELLANEOUS

Component	Component Location
ABS MIL (ESP & SPS)	In dash instrument panel. See Fig. 2 .
ABS MIL W/ Traction Systems (ASR, ETS) & SPS	In dash instrument panel. See Fig. 1 .
ASR MIL (ASR Only) W/ Traction Systems (ASR, ETS) & SPS	In dash instrument panel. See Fig. 1 .
ASR Warning Lamp (ASR Only) W/ Traction Systems (ASR, ETS) & SPS	In dash instrument panel. See Fig. 1 .
Blower Regulator	Center front of cowl, near blower motor.
CHECK ENGINE MIL	In dash instrument panel.
Control Module Box (S420 & S500)	On right rear of engine compartment. See Fig. 5 .
Control Module Box (S600)	On right rear of engine compartment. See Fig. 9 .
Data Link Connector (DTC Readout) (S600)	On right side of engine compartment.
Data Link Connector (ESP & SPS)	On right side of engine compartment. See Fig. 2 .
Data Link Connector W/ Traction Systems (ASR, ETS) & SPS	On right side of engine compartment. See Fig. 1 .
Electromagnetic AIR Pump Clutch (S600)	On lower right front of engine. See Fig. 8 .
EPC MIL (ESP & SPS)	In dash instrument panel. See Fig. 2 .
ESP MIL (ESP & SPS)	In dash instrument panel. See Fig. 2 .
ESP Warning Lamp (ESP & SPS)	In dash instrument panel. See Fig. 2 .
ETS MIL (ETS Only) W/ Traction Systems (ASR, ETS) & SPS	In dash instrument panel. See Fig. 1 .
ETS Warning Lamp (ETS Only) W/ Traction Systems (ASR, ETS) & SPS	In dash instrument panel. See Fig. 1 .

Mercedes-Benz S500 1997 - CONNECTORS

Mercedes-Benz S500 1997 CONNECTORS

Component	Component Location
X1/6	At left kick panel.
X1/7	At right kick panel.
X4 (2-Pin)	At left rear of engine compartment, at fuse & relay box.
X4/5 (1-Pin)	At right side of luggage compartment.
X4/10	At right rear of engine compartment.
X4/17	At left top of left front footwell.
X4/20 (4-Pin)	At left rear of engine compartment, at fuse & relay box.
X4/23 (2-Pin)	Under foot plate, at right front footwell.
X4/28	Under steering column.
X6	Under center of dash.
X8/6	At top front of left front door.
X8/7	At top front of left front door.
X9 (1-Pin)	At left rear of engine compartment.
X11	At left middle of engine compartment.
X11/2 (9-Pin)	At left middle of engine compartment.
X11/3 (9-Pin)	At right rear of engine compartment.
X11/4 (35-Pin)	At right rear of engine compartment.
X11/7 (4-Pin)	At center of heater intake plenum.
X11/13 (12-Pin)	At center of heater intake plenum.
X11/14 (2 or 4-Pin)	At right side of heater intake plenum.
X11/15 (16-Pin)	At right kick panel.
X11/21 (3-Pin)	At right side of heater intake plenum.
X11/22 (16-Pin)	Under left side of dash.
X11/26	At left side of luggage compartment.
X18	At left top of left front footwell.
X20/1	At right top of rear partition panel.
X20/2	At left kick panel.
X20/3 (4-Pin)	At left rear of engine compartment.
X21/1	At left top of left front footwell.
X22/5 (4-Pin)	At right side of heater intake plenum.
X22/8	At right side of left front footwell.
X22/9 (4-Pin)	At right front of left front footwell.
X24 (6-Pin)	At left rear of engine compartment.
X26	At left rear of engine compartment.
X26/2 (36-Pin)	At right side of engine compartment.
X26/27	Behind left side of front bumper.
X27	At right rear of engine compartment.
X27/6	Near coolant reservoir.
X28/4 (2-Pin)	Under steering column.
X28/5 (2-Pin)	Behind steering wheel.
X29/1 (2-Pin)	In glove box.
X29/2 (2-Pin)	Under center of dash.
X29/3	Behind center face vents.
X29/4 (2-Pin)	At left rear of engine compartment.
X33/14 (16-Pin)	Under right front foot plate.
X34/3	In right front door jamb.
X34/5	At right rear door jamb.
X35/1	At left kick panel.
X35/2	At right kick panel.
X35/3	At left "B" pillar.
X35/4	At right "B" pillar.
X35/5 (12-Pin)	At right kick panel.
X35/7 (18-Pin)	At right side of heater intake plenum.
X35/8 (16-Pin)	At right side of heater intake plenum.
X35/15	At right kick panel.
X35/16 (8-Pin)	At right side of heater intake plenum.
X35/20 (12-Pin)	At right kick panel.
X35/21	Behind right headlamp.
X35/22 (1-Pin)	At left kick panel.
X35/26	Under right front foot plate.
X35/27	Under right side of dash.
X35/28	At right rear of luggage compartment.
X35/35	At left kick panel.
X35/51 (4-Pin)	At right kick panel.
X35/58 (10-Pin)	At left rear of engine compartment.
X35/59	Under right front foot plate.
X35/60	At right kick panel.
X35/61	Under right front foot plate.
X35/62	Under right front foot plate.
X35/63	In control module box.
X35/64 (18-Pin)	Under right front foot plate.
X35/65	At left rear of engine compartment.
X35/66	Under right front foot plate.
X36/3 (2-Pin)	Under rear seat, at right side of propeller shaft tunnel.
X39/3 (4-Pin)	Under center of dash.
X39/4 (4-Pin)	Under left front of center console.
X39/10 (12-Pin)	Under right front of center console.
X39/14	Under right front of center console.
X39/36 (4-Pin)	Under center console, left of shifter lever.
X42/13 (1-Pin)	Behind radio.
X42/15	At right front of engine compartment.
X43 (3-Pin)	Behind center of dash.
X44/4	Under rear seat cushion.
X46/5 (3-Pin)	At right side of heater intake plenum.
X47/2	At right rear of engine.
X47/3	At right rear of engine.
X47/4	At right rear of engine.
X49/2 (10-Pin)	At right side of left front footwell.
X49/4 (1-Pin)	In fuse & relay box.
X50/1 (4-Pin)	At right side of left front footwell.
X54/7	Behind left side of dash.
X55/3	Under front of left front seat.
X55/4	Under front of left front seat.
X59/1 (2-Pin)	At left middle of engine compartment.
X62/6	At right rear of engine compartment.
X62/7	At left side of engine compartment.
X62/8	Under right rear of vehicle, near fuel filter.
X62/14	At left front wheel.
X62/15	At right front wheel.
X72/1 (2-Pin)	Under center of dash.
X83/1 (2-Pin)	At left front of right front footwell.
X83/8 (1-Pin)	At left side of engine compartment.
X83/13	Under steering column.
X85/1 (2-Pin)	At left rear of engine compartment.
X87/1	At right rear of engine compartment.
X88/2	Under right front foot plate.
X96/1 (4-Pin)	At right side of heater intake plenum.

Mercedes-Benz S500 1997 - GROUNDS

Mercedes-Benz S500 1997 GROUNDS

Component	Component Location
W1	Behind instrument cluster. See Fig. 4 .
W3	At left front wheelwell, near ignition coil.
W3/1	At right front wheelwell, near ignition coil.
W3/2	At left side of engine compartment. See Fig. 4 .
W3/3	At right side of engine compartment. See Fig. 4 .
W6	At left side of luggage compartment.
W6/1	At left rear of luggage compartment. See Fig. 4 .
W7/1	At right rear of luggage compartment.
W9/1	Behind left headlamp. See Fig. 4 .
W9/2	Behind right headlamp. See Fig. 4 .
W10	At right rear of luggage compartment.
W11	At top middle of engine. See Fig. 4 .
W11/1	At left rear bottom of engine.
W12	In front of shifter lever.
W13/1	Under left "C" pillar trim.
W14	At left side of engine compartment.
W15	At right kick panel.
W15/1	At right kick panel.
W16	At right side of engine compartment. See Fig. 4 .
W16/2	At left side of engine compartment.
W17	Under right side of rear seat. See Fig. 4 .
W26	In front of shifter lever.
W28/1	On sill panel below left front door. See Fig. 4 .
W28/2	On sill panel below right front door.
W29	At left "A" pillar.
W29/1	At left "A" pillar.
W29/2	At right kick panel.
W29/4	At right "C" pillar.
W30	At left rear bottom of engine.
W31	At left side of luggage compartment. See Fig. 4 .
W36	At right kick panel.

Mercedes-Benz S500 1997 - SPLICES

Mercedes-Benz S500 1997 SPLICES

Component	Component Location
Z3	In left interior harness, at sill panel, under left rear door.
Z3/1	In dash harness, at center of dash.
Z3/4	In left engine compartment harness, at fuse & relay box.
Z3/5	In dash harness, at center of dash.
Z3/7	In dash harness, at center of dash.
Z3/8	In dash harness, at center of dash.
Z3/11	In dash harness, at center of dash.
Z3/12	In left interior harness, at sill panel, under left front door.
Z3/13	In left interior harness, at sill panel, under left "B" pillar.
Z3/29	In right interior harness, at sill panel, below right rear door.
Z3/31	In body harness, behind center console.
Z4/3	In luggage compartment harness, on left side of compartment.
Z6/8	In right engine harness, at right rear of engine compartment.
Z6/16	In dash harness, at center of dash.
Z6/18	In left engine compartment harness, at middle of engine.
Z6/21	In left engine compartment harness, at front of fuse & relay box.
Z6/24	In left engine compartment harness, at middle of engine
Z6/25	In left engine compartment harness, at middle of engine
Z7/1	In right interior harness, at sill panel, below right rear door.
Z7/19	In left engine compartment harness, at fuse & relay box.
Z7/21	In dash harness, at center of dash.
Z7/26	In body harness, under left front seat.
Z7/35	In right engine harness, at right rear of engine compartment.
Z7/36	In right engine harness, at right rear of engine compartment.
Z7/38	In left engine compartment harness, at middle front of engine.
Z7/39	In left engine compartment harness, at middle front of engine.
Z8	In left engine compartment harness, at front of fuse & relay box.
Z20/2	In luggage compartment harness, on left side of compartment.
Z20/3	In luggage compartment harness, on left side of compartment.
Z20/4	In luggage compartment harness, on left side of compartment.
Z20/5	In luggage compartment harness, on left side of compartment.
Z20/10	In luggage compartment harness, on left side of compartment.
Z20/16	In luggage compartment harness, on left side of compartment.
Z21/2	In right interior harness, at sill panel, below right "B" pillar.
Z21/3	In right interior harness, at sill panel, below right rear door.
Z25/3	In luggage compartment harness, on left side of compartment.
Z28/2	In luggage compartment harness, on left side of compartment.
Z28/18	In luggage compartment harness, on left side of compartment.
Z29	In left engine compartment harness, at fuse & relay box.
Z30/1	In left engine compartment harness, at fuse & relay box.
Z30/2	In left engine compartment harness, at fuse & relay box.
Z30/5	In left interior harness, at sill panel, under left rear door.
Z35/1	In left interior harness, at sill panel, under left rear door.
Z35/2	In left interior harness, at sill panel, under left rear door.
Z37/2	In right engine harness, at right rear of engine compartment.
Z37/3	In right engine harness, at right rear of engine compartment.
Z38	In right interior harness, at sill panel, below right rear door.
Z81	In body harness, under left front seat.
Z82/3	In right interior harness, at sill panel, below right rear door.
Z85/1	In right engine harness, at right rear of engine compartment.
Z88/1	In right interior harness, at sill panel, below right "B" pillar.
Z94	In right engine harness, at right rear of engine compartment.
Z99/1	In right engine harness, at right rear of engine compartment.