Mercedes-Benz SL500 1999 - 1999 MERCEDES-BENZ SL500 & SL600

Mercedes-Benz SL500 1999 - BUZZERS, RELAYS & TIMERS

Mercedes-Benz SL500 1999 BUZZERS, RELAYS & TIMERS LOCATION

Component	Component Location
AIR Relay	In fuse & relay box.
Auxiliary Fan Relay	In fuse & relay box.
CF Relay	In fuse & relay box.
Combination Relay	In fuse & relay box.
Fuel Pump Relay	At right side of luggage compartment.
High Pressure Return Pump Relay	In fuse & relay box.
Horn Relay	In fuse & relay box.
Overvoltage Protection Relay	In right component compartment.
Rear Window Defroster Relay	At right side of luggage compartment.
Wiper Relay	In right component compartment.

Mercedes-Benz SL500 1999 - CIRCUIT PROTECTION DEVICES

Mercedes-Benz SL500 1999 CIRCUIT PROTECTION DEVICES LOCATION

Component	Component Location
Front Auxiliary Fuse Box	At left rear of engine compartment, behind brake booster.
Fuse & Relay Box	At left component compartment.
Left Component Compartment	At left rear of engine compartment. See Fig. 2 .
Rear Fuse Box	At right front of luggage compartment.
Right Component Compartment	At right rear of engine compartment. See Fig. 2 .

Mercedes-Benz SL500 1999 - CONTROL UNITS

Mercedes-Benz SL500 1999 CONTROL UNITS LOCATION

Component	Component Location
ABS Control Module	In right component compartment.
ADS Control Module	In right component compartment.
AIR Control Module	At left front of engine compartment, on fender. See Fig. 2 .
ASR/SPS Control Module	In right component compartment.
ATA Control Module	In right front side of luggage compartment. See Fig. 2 .
Base Module	In right component compartment.
DAS Control Module	Behind left side of dash. See Fig. 2 .
Diagnostic Module (OBDII)	In right component compartment.
DI/KSS Control Module	At left front inner fender. See Fig. 2 .
Engine Control Module	In right component compartment.
Engine Systems Control Module	In right component compartment.
ESP/SPS Control Module	In right component compartment.
ETS/SPS Control Module	In right component compartment.
In-Dash Controller	At top center of dash, inside storage compartment.
Power Soft Top Control Module	On floor, behind right seat. See Fig. 2 .
RCL Control Module	At right front side of luggage compartment. See Fig. 2 .
Roll Bar Control Module	Behind front seats, on transmission hump. See Fig. 2 .
Seat Belt Warning Module	Behind right side of dash. See Fig. 2 .
SRS Control Module	Under center console, ahead of shifter. See Fig. 2 .
Transmission Control Module	In right component compartment.

Mercedes-Benz SL500 1999 - MOTORS

Mercedes-Benz SL500 1999 MOTORS LOCATION

Component	Component Location
Air Pump	At front of engine.
Blower Motor	In heater box.
Coolant Circulation Pump	In right component compartment.
EA/CC/ISC Actuator (SL500)	Under intake manifold.
Fuel Pump	Under vehicle, between rear wheels.
Left EA/CC/ISC Actuator (SL600)	At top right of engine.
Right EA/CC/ISC Actuator (SL600)	At top right of engine.
Vacuum Supply Pump	At right side of luggage compartment, inside foam covering.

Mercedes-Benz SL500 1999 - SENDING UNITS & SENSORS

Mercedes-Benz SL500 1999 SENDING UNITS & SENSORS LOCATION

Component	Component Location
Body Acceleration Sensor	At left side of engine compartment, forward of shock tower.
Camshaft Hall Effect Sensor (SL500)	At front of engine.
Crankshaft Position Sensor	At left rear of engine, on transmission flange.
DM Pressure Sensor	At front of engine.
Engine Coolant Temperature Gauge Sensor	On top front of engine.
Engine Coolant Temperature Sensor	On top front of engine.
ESP Yaw Rate Sensor	On floor, behind seats. See Fig. 2 .
Evaporator Temperature Sensor	On evaporator housing, right of steering column.
Fuel Tank Pressure Sensor	At left side of engine compartment.
Hot Film Mass Airflow Sensor (SL500)	At top center of engine.
Intake Air Temperature Sensor (SL500)	At top center of engine.
Interior Temperature Sensor	Integral to dome light housing.
Left Camshaft Hall Effect Sensor (SL600)	At right front of engine.
Left Engine Coolant Temperature Sensor (SL600)	At top left front of engine.
Left Front Knock Sensor (SL600)	Under intake manifold, between cylinders No. 7 & 8.
Left Heater Core Temperature Sensor	On left side of heater box.
Left Hot Film Mass Airflow Sensor (SL600)	On left front of engine compartment, on air intake duct.
Left Intake Air Temperature Sensor (SL600)	On left front of engine compartment, on air intake duct.
Left Knock Sensor (SL500)	On left outer side of engine.
Left Oxygen Sensor No. 1	In left exhaust pipe, upstream of catalyst.
Left Oxygen Sensor No. 2	In left exhaust pipe, downstream of catalyst.
Left Pressure Sensor (SL600)	At front side of engine.
Left Rear Knock Sensor (SL600)	Under intake manifold, between cylinders 10 & 11.
Left Side Air Bag Sensor	Under left front seat.
Oil Pressure Sensor (SL500)	At lower right side of engine.
Outside Temperature Gauge Sensor	At right side of front bumper.
Outside Temperature Sensor (A/C)	At rear center of engine compartment.
Pedal Value Sensor	At left side of engine compartment.
Right Camshaft Hall Effect Sensor (SL600)	At front of engine.
Right Engine Coolant Temperature Sensor (SL600)	At top right front of engine.
Right Front Knock Sensor (SL600)	Under intake manifold, between cylinders No. 1 & 2.
Right Hot Film Mass Airflow Sensor (SL600)	On top of engine.
Right Knock Sensor (SL500)	On right outer side of engine.
Right Heater Core Temperature Sensor	Behind center console.
Right Intake Air Temperature Sensor (SL600)	On right front of engine compartment, on air intake duct.
Right Oxygen Sensor No. 1	In exhaust pipe, upstream of catalyst.
Right Oxygen Sensor No. 2	In exhaust pipe, downstream of catalyst.
Right Pressure Sensor (SL600)	At front side of engine.
Right Rear Knock Sensor (SL600)	Under intake manifold, between cylinders No. 3 & 4.
Right Side Air Bag Sensor	Under right front seat.

Mercedes-Benz SL500 1999 - SOLENOIDS & SOLENOID VALVES

Mercedes-Benz SL500 1999 SOLENOIDS & SOLENOID VALVES LOCATION

Component	Component Location
ASR/ETS/ESP Hydraulic Unit	At left front of engine compartment. See Fig. 2 .
Automatic A/C Monovalve	In right component compartment.
EGR Switchover Valve	In right component compartment.
Left Adjustable Camshaft Timing Solenoid (SL600)	At front of left cylinder head.
Left Purge Control Valve (SL600)	Behind left headlight.
Right Adjustable Camshaft Timing Solenoid (SL600)	At front of right cylinder head.
Right Purge Control Valve (SL600)	Rear of coolant reservoir.
RST/RB Hydraulic Unit (Power Soft Top)	In spare tirewell.
Switchover Valve Block	Behind right side of dash.
Upshift Delay Solenoid Valve	On bottom left side of engine.
Upshift Delay Switchover Valve	In right component compartment.

Mercedes-Benz SL500 1999 - SWITCHES

Mercedes-Benz SL500 1999 SWITCHES LOCATION

Component	Component Location
A/C Compressor Low Pressure Switch	At left front of engine compartment, on receiver-drier.
Auxiliary Fan A/C Compressor Switch	At left front of engine compartment, on receiver-drier.
Brake Fluid Level Switch	On brake fluid reservoir.
ECL Switch	Under coolant reservoir.
ESC Switch	On underside of steering column.
Hood Switch (ATA)	At right side of radiator support.
Kickdown Switch	Under accelerator pedal.
Oil Level Switch	At right front of oil pan.
Parking Brake Switch	Near top of parking brake lever.
Roll Bar Retracted Switch	Behind left rear seat.
Starter Lockout/Back-Up Light Switch	On left side of transmission.
Transmission Overload Protection Switch	On left side of transmission.

Mercedes-Benz SL500 1999 - MISCELLANEOUS

Mercedes-Benz SL500 1999 MISCELLANEOUS LOCATION

Component	Component Location
Alarm Horn	At right front of vehicle, below headlight assembly.
Antenna Splitter	At left side of luggage compartment.
Auxiliary Fan Pre-Resistor	At front center of vehicle, in front of radiator.
CD Changer	In luggage compartment, behind left wheelwell.
CTEL Interface	At left rear of luggage compartment.
CTEL Transmitter-Receiver	At left rear of luggage compartment.
Left/Right Audio Power Amplifier	Behind left seat.
Tuner/Amplifier	At left side of luggage compartment.
Navigation Processor (APS)	At left rear of luggage compartment.
Reference Resistor	At left front of engine compartment.

Mercedes-Benz SL500 1999 - CONNECTORS

Mercedes-Benz SL500 1999 CONNECTORS LOCATION

Component	Component Location
X18 (12 Pin)	Under left kick panel.
X18/3 (Green, 8 Pin)	Under left kick panel.
X18/9 (12 Pin)	At right front of luggage compartment.
X18/10	At rear of right component compartment.
X22/12	In passenger footwell.
X22/2 (8 Pin)	Under radio.
X22/5	Under radio.
X23/1	At base of right "A" pillar.
X24	Under fuse & relay box.
X26/2	In right component compartment.
X26/12	Under radio.
X27 (5 Pin)	In right component compartment.
X30/1	In right component compartment.
X33/15	In right footwell.
X35	Behind right side of dash.
X35/16	In right component compartment.
X54/7 (8 Pin)	Behind left side of dash, left of steering column.
X54/8	Behind left side of dash, left of steering column.
X62/1	In right footwell.
X62/2	In right footwell.
X85 (4 Pin)	In right component compartment.
X85/2 (12 Pin)	Behind right side of instrument cluster.

Mercedes-Benz SL500 1999 - GROUNDS

Mercedes-Benz SL500 1999 GROUNDS LOCATION

Component	Component Location
W1	Behind instrument cluster, left of steering column. See Fig. 1 .
W2	Behind right headlight. See Fig. 1 .
W3	On left front frame rail. See Fig. 1 .
W6	At left front of luggage compartment. See Fig. 1 .
W7	At right front of luggage compartment. See Fig. 1 .
W9	Behind left headlight. See Fig. 1 .
W10	At right rear of luggage compartment. See Fig. 1 .
W11	At left front of engine compartment. See Fig. 1 .
W11/2	On right front of engine. See Fig. 1 .
W11/3	On left front of engine. See Fig. 1 .
W12	Under center console, forward of shifter. See Fig. 1 .
W14	On ABS hydraulic unit bracket. See Fig. 1 .
W15/1	Behind right side of dash. See Fig. 1 .
W16	At rear of right component compartment. See Fig. 1 .
W16/2	At rear of right component compartment. See Fig. 1 .
W17	Behind right rear seat. See Fig. 1 .
W18	Under left front seat. See Fig. 1 .
W19	Under right front seat. See Fig. 1 .
W24	On right rear floor. See Fig. 1 .
W26	Under center console, under bolt for SRS control module. See Fig. 1 .
W27	At right front of right component compartment. See Fig. 1 .
W31	In luggage compartment, behind left wheelwell. See Fig. 1 .

Mercedes-Benz SL500 1999 - SPLICES

Mercedes-Benz SL500 1999 SPLICES LOCATION

Component	Component Location
Z6	In right component compartment.
Z6/1	In right component compartment.
Z6/8	In right component compartment.
Z7/16	In left footwell, near center console.
Z7/25	In right component compartment.
Z7/35	In right component compartment.
Z10	At center of right kick panel.
Z12	In left footwell.
Z13	In left footwell.
Z16	In right component compartment.
Z21/10	At right front floor.
Z24	In left footwell.
Z29/3	In left footwell.
Z30/6	In left footwell.
Z40	In right component compartment.
Z81/4	In right footwell, near center console.
Z82/7	At right rear floor, near harness entry into luggage compartment.
Z84/1	In right component compartment.
Z84/2	In right component compartment.
Z99/1	In right component compartment.