Wiring diagrams for Mercedes-Benz S-class
Access to the online wiring database Mercedes-Benz S-class W140 facelift (1994-1999)
Anti-lock brake circuits, with acceleration slip regulation (1
of 2)
Anti-lock brake circuits, with acceleration slip regulation (1 of 2)
Anti-lock brake circuits, with traction control (1 of 2)
Anti-lock brake circuits, with traction control (1 of 2)
Anti-lock brake circuits, with electronic stability program (1 of 2)
Anti-lock brake circuits, with electronic stability program (1 of 2)
Wiring diagram engine performance 3.2ls (1 of 3)
Wiring diagram engine performance 3.2ls (1 of 3)
Instrument illumination circuit (1 of 2)
Instrument illumination circuit (1 of 2)
Power distribution circuit (1 of 2)
Power distribution circuit (1 of 2)
Front a/c circuit (1 of 2)
Front a/c circuit (1 of 2)
Wiring diagram engine performance 4.2ls (1 of 3)
Wiring diagram engine performance 4.2ls (1 of 3)
Wiring diagram engine performance 5.0ls (1 of 3)
Wiring diagram engine performance 5.0ls (1 of 3)

Wiring Diagrams for Mercedes-Benz S-class W140 facelift (1994-1999)

  • Description:
    Engines: 3.2L, 4.2L, 5.0L
  • Systems: 70 Components: 1140
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  • Finding components on wiring diagrams
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4 10 3 STOP SWITCH STOP SWITCH AIR DISTRIBUTION SWITCH ASR OFF SWITCH BACKREST ADJUST LIMIT SWITCH BACKUP SWITCH BRAKE FLUID LEVEL SWITCH CENTRAL LOCKING INSIDE SWITCH CENTRAL LOCKING/ ANTI-THEFT ALARM SWITCH CENTRAL LOCKING/ ANTI-THEFT SWITCH COMBINATION SWITCH COMBINATION SWITCH LO COMFORT, SPORT SWITCH COMFORT/SPORT SWITCH CRUISE CONTROL SWITCH CUSHION ADJUST LIMIT SWITCH DRIVER SEAT BELT BUCKLE SWITCH ELECTRONIC STEERING COLUMN ADJUSTMENT SWITCH ELECTRONIC STEERING COLUMN SWITCH ENGINE HOOD SWITCH ESP OFF SWITCH EXTERIOR LAMP SWITCH FANFARE HORN SWITCH FOG LAMP SWITCH FRONT CENTER CONSOLE LEFT FRONT POWER WINDOW SWITCH FRONT CENTER CONSOLE LEFT REAR POWER WINDOW SWITCH FRONT CENTER CONSOLE RIGHT REAR POWER WINDOW SWITCH HAZARD FLASHER SWITCH HOT AT ALL TIMES IGNITION SWITCH HOT W/ LIGHT SWITCH IN PARK OR HEAD IGNITION SWITCH IGNITION/ STARTER SWITCH INTERIOR LIGHTS SWITCH INTERLOCK SWITCH LEFT DOOR SWITCH LEFT FRONT DOOR LOCK SWITCH LEFT FRONT DOOR SWITCH LEFT FRONT POWER SEAT SWITCH GROUP LEFT FRONT SEAT BELT BUCKLE SWITCH RIGHT FRONT SEAT BELT BUCKLE SWITCH LEFT FRONT SEAT BELT BUCKLE/ COMFORT FEATURE SWITCH LEFT FRONT SEAT HEATER SWITCH LEFT OR RIGHT FRONT POWER SEAT SWITCH LEFT REAR DOOR SWITCH LEFT REAR HEAD RESTRAINT RAISE/ LOWER SWITCH LEFT REAR HEAD RESTRAINT RAISE/LOWER SWITCH LEFT REAR POWER WINDOW SWITCH LEFT REAR SEAT ADJUSTMENT SWITCH LEFT REAR SEAT BELT BUCKLE/ COMFORT FEATURE SWITCH LEFT REAR SEAT CUSHION ADJUSTMENT SWITCH LEFT REAR SEAT HEATER SWITCH LIGHT SWITCH OUTSIDE REARVIEW MIRROR SWITCH PARKING BRAKE SWITCH PARKTRONIC SYSTEM ON/OFF SWITCH PASSENGER SEAT BELT BUCKLE SWITCH PTS ON/OFF SWITCH REAR HEAD RESTRAINT SWITCH REAR POWER WINDOWS SAFETY SWITCH REAR WINDOW SUN SHADE SWITCH REMOTE TRUNK RELEASE SWITCH RIGHT DOOR SWITCH RIGHT FRONT DOOR SWITCH RIGHT FRONT POWER SEAT SWITCH GROUP RIGHT FRONT POWER WINDOW SWITCH RIGHT FRONT SEAT BELT BUCKLE/ COMFORT FEATURE SWITCH RIGHT FRONT SEAT BELT BUCKLE/BELT COMFORT SWITCH RIGHT FRONT SEAT HEATER SWITCH RIGHT REAR DOOR SWITCH RIGHT REAR HEAD RESTRAINT RAISE/ LOWER SWITCH RIGHT REAR HEAD RESTRAINT RAISE/LOWER SWITCH RIGHT REAR POWER WINDOW SWITCH RIGHT REAR SEAT ADJUSTMENT SWITCH RIGHT REAR SEAT BELT BUCKLE/ COMFORT FEATURE SWITCH RIGHT REAR SEAT CUSHION ADJUSTMENT SWITCH RIGHT REAR SEAT HEATER SWITCH SAFETY SWITCH SEAT BELT EXTENDER SWITCH SEAT BELT EXTENDER SWITCH ASR OFF SWITCH OR ESP OFF SWITCH SLIDING/ POP-UP ROOF SWITCH STOP LAMP SWITCH STOP LAMP SWITCH, SEAT BELT WARNING MODULE TO EXTERIOR LAMP SWITCH TRANSMISSION OVERLOAD PROTECTION SWITCH TRANSMISSION RANGE RECOGNITION SWITCH TRUNK LID LOCK SWITCH TURN SIGNAL SWITCH WARM/COOL AIR SWITCH WASHER SWITCH WINDSHIELD WASHER FLUID LEVEL SWITCH WIPER SWITCH

1 2 3 4 5 6 PNK WIRE 2 11 9 18 19 17 16 8 10 13 20 12 PNK WIRE BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/BRN/VIO WIRE BLK/GRN WIRE BLK/GRN/RED WIRE BLK/GRN/VIO WIRE BLK/GRY WIRE BLK/GRY/BLU WIRE BLK/GRY/RED WIRE BLK/HWT WIRE BLK/PNK WIRE BLK/RED WIRE BLK/RED/GRN WIRE BLK/RED/VIO WIRE BLK/RED/WHT WIRE BLK/RED/YEL WIRE BLK/VIO WIRE BLK/VIO/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLK/YEL/GRN WIRE BLK/YEL/PNK WIRE BLK/YEL/RED WIRE BLK/YEL/WHT WIRE BLL/RED WIRE BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/BLU/WHT WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/PNK WIRE BRN/RED WIRE BRN/RED/GRN WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/PNK WIRE GRN/RED WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/BLK/VIO WIRE GRY/BLK/YEL WIRE GRY/BLU WIRE GRY/BLU/WHT WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/GRN/VIO WIRE GRY/GRN/WHT WIRE GRY/PNK WIRE GRY/RED WIRE GRY/RED/VIO WIRE GRY/RED/WHT WIRE GRY/RED/YEL WIRE GRY/VIO WIRE GRY/VIO/WHT WIRE GRY/WHT WIRE GRY/WHT/VIO WIRE GRY/YEL WIRE GRY/YEL/GRN WIRE GRY/YEL/RED WIRE GRY/YEL/VIO WIRE GRY/YEL/WHT WIRE NCA (OR WIRE NCA WIRE ORG/ WIRE PNK PNK WIRE PNK WIRE PNK/BLK WIRE PNK/BLU WIRE PNK/GRN WIRE PNK/GRN/BLK WIRE PNK/GRY WIRE PNK/RED WIRE PNK/VIO WIRE PNK/WHT WIRE PNK/YEL WIRE PNK/YEL/BLK WIRE RED WIRE RED/BLK WIRE RED/BLK/YEL WIRE RED/BLU WIRE RED/BLU/BLK WIRE RED/BLU/YEL WIRE RED/BRN WIRE RED/BRN/BLK WIRE RED/GRN WIRE RED/GRY WIRE RED/WHT WIRE RED/WHT/YEL WIRE RED/YEL WIRE RED/YEL/WHT WIRE RUN WIRE VIO WIRE VIO/BLK WIRE VIO/BLU WIRE VIO/WHT WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/GRN WIRE WHT/PNK WIRE WHT/PNK/VIO WIRE WHT/RED WIRE WHT/VIO WIRE WHT/YEL WIRE YEL WIRE YEL/BLK WIRE YEL/BLK/GRN WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRN WIRE YEL/GRY WIRE YEL/PNK WIRE YEL/RED WIRE YEL/VIO WIRE YEL/WHT WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 DIAGN 1 2 3 4 5 6 7 8 9 10 11 12 13 LED R LED G LED R IR +12 V 1 4 3 ESP/ SPS 1 11 3 ASR/ SPS 2 3 4 5 6 TK DF HD SN 2 TK SN 1 3 1 6 2 HS ON-OFF 5.1 5/1 5/2 9/1 5/1 12/1 4/1 8 27 STOP FEED VOLTAGE SUPPLY 12/1 12/2 12/2 14/1 12/2 14/3 14/1 14/3 12/1 14/2 14/3 14/1 15 SN 2 17/2 17/1 32/1 29/2 28/1 30 15 DZA 30 ZV 15 TK 36/2 36/1 31/2 37/2 37/1 47 -1 47 -2 65/1 68/2 74/2 74/1 71/2 78/1 82/2 78/2 82/1 78/2 65/1 69/1 69/2 78/1 68/2 82/1 82/2 87 HH 1995 VFTC 1995-99 1996-99 1998, 1999 +12 V 31 A/C COMPRESSOR ABS IND. ADS IND ADS WARNING IND. AKF+ AKF- CAN B CAN A ANTI- THEFT ALARM SYSTEM, INFRARED REMOTE CONTROL, REAR HEATED SEATS ANTI-THEFT ALARM SYSTEM, INFRARED REMOTE CONTROL, REAR HEAD RESTRAINTS ASR/ESP IND ASR/ESP WARNING IND AUTO DIMMING INSIDE REAR-VIEW MIRROR AUTOMATIC DIMMING INSIDE REARVIEW MIRROR AUX TAIL BACK-UP LAMPS CIRCUIT BACKREST ADJUSTMENT BACKREST FWD/ BKWD BACKREST HEAD RESTRAINT UP/DOWN BASE MODULE BLS LAM ZAS BRAKE IND BRAKE PAD WEAR IND CAN A CAN B CAN-H- CAN-L- CAN-L CAN-H CD CHANGER CENTER AIR OUTLET CONTROLS CENTER CONSOLE CENTER CONSOLE REAR POWER WINDOWS CHARGING SYSTEM CL 30 COMPUTER DATA LINES SYSTEM COUPE ONLY CRUISE CONTROL SYSTEM CTEL TRANSMITTER/ RECEIVER CTRL CONTACT CTRL OFF RES DEC CUSHION ANGLE DATA A DATA B DATA C DATA D POWER GROUND DAYTIME RUNNING LAMPS DAYTIME RUNNING LAMPS DAYTIME RUNNING LAMPS DF HD TK REVERSE 31 DN TO LIMIT DN TO LIMIT UP DN UP TO LIMIT DN TO LIMIT UP TO LIMIT UP DN UP TO LIMIT DOME/READING LAMPS W/ SHUT OFF DELAY DOOR INPUT ELECTRICALLY ADJUSTABLE AND HEATED DRIVER-SIDE OUTSIDE REARVIEW MIRROR ELECTRICALLY ADJUSTABLE, HEATED DRIVER'S SIDE OUTSIDE REARVIEW MIRROR ELECTRICALLY ADJUSTABLE, HEATED FRONT PASSENGER OUTSIDE REARVIEW MIRROR ELECTROLYTIC CAPACITOR ELECTRONIC ACCELERATOR/ CRUISE CONTROL/IDLE ELECTRONIC CLOCK ELECTRONIC SPEEDOMETER/ MAIN ODOMETER ELECTRONIC SUSPENSION SYSTEM FORWARD BACKWARD FRONT A/C CIRCUIT FRONT CIGAR LIGHTER FRONT CIGAR LIGHTER W/ ASHTRAY ILLUMINATION FRONT WIPER/ WASHER CIRCUIT FUEL INJECTOR VALVES FUEL INJECTORS FUEL LEVEL GAUGE FUEL PUMPS FUEL RESERVE IND HEAD LH HEAD RESTRAINT UP/DOWN HEADLIGHTS SYSTEM HEADLIGHTS SYSTEM WIPER/ WASHER SYSTEM HEATED REAR WINDOW HEATED SEATS HEATED WINDSHIELD WASHER SYSTEM THERMOSWITCH HI FLASH HI FLASH- TO- PASS HI LO HIGH BEAM IND HIGH LOW HORIZONTAL ADJUSTMENT HOT AT ALL TIMES HOT AT ALL TIMES TERMINAL HOT IN ACC, RUN OR START HOT IN ACC, RUN, START HOT IN ACCY, RUN, OR START HOT IN OFF, ACCY HOT IN RUN HOT IN RUN AND START HOT IN RUN OR START HOT IN RUN, ACC OR START HS ON-OFF IGNITION COILS IN DASH CONTROLLER INFRARED CENTRAL LOCKING INSTR CLUST SYSTEM INSTRU- MENT CLUSTER INSTRUMENT CLUSTER INSTRUMENT CLUSTER SYSTEM INT LO IR 30 LED G IR DIAG LED G LED R LED HS LEFT AUXILIARY FAN LEFT DUOVALVE LEFT FRONT AXLE DAMPER LEFT FRONT DOOR CLOSING ASSIST MICROSWITCH LEFT FRONT DOOR IR RECEIVER LEFT FRONT ESA MODULE LEFT FRONT ETR SQUIB LEFT FRONT ONLY LEFT FRONT RIGHT FRONT LEFT REAR AXLE DAMPER LEFT REAR DOOR CLOSING ASSIST MICROSWITCH LEFT REAR DOOR PLUG CONNECTION LEFT REAR VANITY MIRROR LEFT SEAT BELT EXTENDER LEFT SUN VISOR W/ ILLUMINATED VANITY MIRROR LEFT TURN IND LEFT TURN SIGNAL IND LH HEAD LH HEAD HEAD LO HI FLASH LOW ECL IND LOW WASHER FLUID IND LW DF M- M+ MARKER AUX TAIL FOG MARKER FOG MD WIK MD LED+ MD LED- LED HS MIRROR POSITION MIRROR SELECT NOT USED NOTE: COMPONENTS MAY BE GROUNDED AT EITHER OFF HI OFF PARK OFF PARK HEAD OFF PARK RH OFF RH OFF RH PARK OFF RH PARK HEAD LH OFF RH PARK LH HEAD P+ P- PASSENGER AIRBAG SQUIB PASSIVE RESTRAINTS SYSTEM POSITION 1 POSITION 2 POSITION 3 RAISE/ LOWER READ- ING READ- ING DOME REAR AIR OUTLET REAR BACKREST ADJUSTMENT REAR CIGAR LIGHTER REAR CLIMATE CONTROL REAR HEAD RESTRAINT REAR POWER SEAT LEFT/RIGHT SEAT MEMORY, FRONT ESA MODULES REAR WINDOW DEFROSTER REAR WINDOW DEFROSTER ELEMENT RH LH RH OFF PARK RH PARK LH HEAD RIGHT AUXILIARY FAN RIGHT DUOVALVE RIGHT FRONT AXLE DAMPER RIGHT FRONT DOOR CLOSING ASSIST MICROSWITCH RIGHT FRONT DOOR IR RECEIVER RIGHT FRONT ESA MODULE RIGHT FRONT ETR SQUIB DRIVER AIRBAG SQUIB RIGHT REAR AXLE DAMPER RIGHT REAR DOOR CLOSING ASSIST MICROSWITCH RIGHT REAR DOOR PLUG CONNECTION RIGHT REAR SEAT RIGHT REAR VANITY MIRROR RIGHT SEAT BELT EXTENDER RIGHT SUN VISOR W/ ILLUMINATED VANITY MIRROR RIGHT TURN IND RIGHT TURN SIGNAL IND ROTARY TUMBLER/ TRUNK LID MICROSWITCH RTR A/C DOME RHR SEAT BELT EXTENDERS POWER WINDOWS SEAT BELT REMINDER IND SEAT CUSHION HEIGHT SEAT CUSHION INCLINE BACKREST FWD/ BKWD SEAT FORWARD/ BACKWARD SEAT FWD/BACK SEAT HEIGHT REAR SEAT HEIGHT FRONT SEAT HEIGHT REAR SEATBELT WARNING MODULE, INSTRUMENT CLUSTER SEDAN, COUPE SLIDING/ POP-UP ROOF SLIP RING SN 1 SPARK PLUG #1 SPARK PLUG #6 SPARK PLUG #2 SPARK PLUG #5 SPARK PLUG #3 SPARK PLUG #4 SRS IND STANDING OFF RH PARK STANDING RH STARTING SYSTEM STARTING/ CHARGING SYSTEM STARTING/CHARGING SYSTEM STEERING COLUMN IN/OUT STEERING COLUMN UP/DOWN STOP MARKER FOG SUPPLEMENTAL RESTRAINTS SYSTEM TAIL/ PARK TAIL/ PARK TAIL/ PARK TELE- PHONE TELESCOPIC ADJUSTMENT TERMINAL BLOCK TERMINAL BLOCK X/4 TF TFL TFR SEN SENS TILT ADJUSTMENT TK 15 TK TK DF HD TRANSMISSION SELECTOR LEVER TRANSMISSION SYSTEM TRUNK LID IR RECEIVER TRUNK LID MICROSWITCH TRUNK RELEASE SYSTEM TRUNK TERMINAL BLOCK UP DN UP DN TO LIMIT UP TO LIMIT VERTICAL ADJUSTMENT VSS RF VVR+ W/ XENON LAMPS W/O XENON LAMPS WARNING BUZZER WIPER/ WASHER SYSTEM ZA+ VVL ZA+ ZA- HAL ZA- ZR+ ZR- ZRS 31