Mercedes-Benz C-class AMG W204/S204/С204 (2007-2011) (under driver's seat) Wiring diagrams

1 2 3 4 FLAT WIRE FLAT WIRE FLAT WIRE FLAT WIRE (+) (-) 31 (+) 1 2 5 4 CAN B L CAN B H 30 31 1 3 2 6 7 8 9 31 DATA 31 SIG 4 10 5 6 8 7 FLAT WIRE FLAT WIRE FLAT WIRE FLAT WIRE FLAT WIRE FLAT WIRE SIG 5 6 7 8 9 FLAT WIRE FLAT WIRE FLAT WIRE FLAT WIRE FLAT WIRE FLAT WIRE 6 7 8 9 ZV-MOT ZV-MOT GND SIG 9 10 12 14 15 17 CAN-B H CAN-B L ZV ZV ZV ZV BRN WIRE BRN/GRN WIRE BRN/PNK WIRE BRN/RED WIRE CENTRAL MOTOR LOCKING RIGHT FRONT DOOR LOCK CENTRAL W/ LOCKING KEYLESS GO MOTOR W/O LEFT FRONT KEYLESS GO DOOR LOCK COMPUTER DATA LINES SYSTEM FLAT WIRE FLAT WIRE FLAT WIRE FLAT WIRE FLAT WIRE 12 13 14 15 FUSE 2 FUSE 3 FUSE 89 GRN WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/GRN WIRE GRY/PNK WIRE HOT AT ALL TIMES LEFT FRONT DOOR CONTROL UNIT NCA WIRE PASSENGER-SIDE POWER WINDOW SWITCH RED WIRE RED/GRY WIRE RED/WHT WIRE RIGHT FRONT DOOR CENTRAL LOCKING INTERIOR SWITCH RIGHT FRONT DOOR CONTROL UNIT RIGHT FRONT DOOR EXIT, WARNING LAMP (W/ INTERIOR LIGHTS PACKAGE) RIGHT FRONT DOOR HANDLE ILLUMINATION (W/ INTERIOR LIGHTS PACKAGE) ROTARY TUMBLER SWITCH SIG LED TRUNK LID RELEASE/ DRIVER TAILGATE CONTROL BUTTON (IF EQUIPPED) W/ KEYLESS GO W/O KEYLESS GO W/ TRUNK LID RELEASE, TAILGATE CONTROL W/O TRUNK LID RELEASE, TAILGATE CONTROL WHT WIRE ZV-MOT ZV-MOT GND SIG

1 2 3 4 (+) (-) 31 (+) 1 2 5 4 CAN B L CAN B H 18 28 ZV SIG 3 2 FLAT WIRE FLAT WIRE 30 31 4 3 CAN-B H CAN-B L SIG SIG 5 6 7 8 9 FLAT WIRE FLAT WIRE FLAT WIRE FLAT WIRE FLAT WIRE FLAT WIRE BLU WIRE BRN WIRE BRN/GRY WIRE BRN/PNK WIRE BRN/RED WIRE CENTRAL MOTOR LOCKING COMPUTER DATA LINES SYSTEM FLAT WIRE FLAT WIRE FLAT WIRE FLAT WIRE FLAT WIRE 12 13 14 15 FUSE FUSE GRN WIRE GRN/BLU WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/GRN WIRE GRY/PNK WIRE LEFT FRONT DOOR CENTRAL LOCKING INTERIOR SWITCH LEFT FRONT DOOR DOOR HANDLE ILLUMINATION LEFT FRONT DOOR EXIT, WARNING LAMP LEFT REAR DOOR CONTROL UNIT LEFT REAR DOOR DOOR HANDLE ILLUMINATION (W/ INTERIOR LIGHTS PACKAGE) LEFT REAR DOOR EXIT, WARNING LAMP (W/ INTERIOR LIGHTS PACKAGE) LEFT REAR DOOR LOCK REAR SAM CONTROL UNIT W/ FUSE, RELAY MODULE (LEFT SIDE OF TRUNK/ CARGO AREA) RED WIRE RED/GRY WIRE RED/WHT WIRE RIGHT REAR DOOR CONTROL UNIT RIGHT REAR DOOR LOCK ROTARY TUMBLER SWITCH TAILGATE CONTROL BUTTON (W/ AUTOMATIC TAILGATE, KEYLESS GO) TANK CAP CENTRAL LOCKING MOTOR (RIGHT SIDE OF TRUNK) TRUNK LID RELEASE/ DRIVER TAILGATE CONTROL BUTTON W/ INTERIOR LIGHTS PACKAGE W/ KEYLESS W/O KEYLESS W/O KEYLESS W/ KEYLESS

30 31 CAN L CAN H BRN WIRE COMPUTER DATA LINES SYSTEM FUSE GRN WIRE GRN/WHT WIRE HOT AT ALL TIMES LEFT FRONT REVERSIBLE EMERGENCY TENSIONING RETRACTOR REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT SIDE OF TRUNK/CARGO AREA) RED/VIO WIRE RED/WHT WIRE RIGHT FRONT REVERSIBLE EMERGENCY TENSIONING RETRACTOR

2 7 8 31 (+) (+) 30 31 CAN-B H CAN-B L BLK/GRY WIRE BLK/VIO WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/RED WIRE CAN C H CAN C L COMPUTER DATA LINES SYSTEM CONTROL UNIT) DRIVER SEAT CONTACTING STRIP FRONT PASSENGER SEAT CONTACTING FRONT SAM CONTROL UNIT W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUSE 12 GRY/YEL WIRE HOT AT ALL TIMES LEFT FRONT BACKREST HEATED CUSHION (IF EQUIPPED) LEFT FRONT HEATED SEAT BUTTON LEFT FRONT SEAT SITTING SURFACE HEATED CUSHION (IF EQUIPPED) LIN 1 31 REAR SAM CONTROL UNIT W/ FUSE, RELAY MODULE (LEFT SIDE OF RED WIRE RED/GRN WIRE RIGHT FRONT BACKREST HEATED CUSHION (IF EQUIPPED) RIGHT FRONT HEATED SEAT BUTTON RIGHT FRONT SEAT SITTING SURFACE HEATED CUSHION (IF EQUIPPED) STRIP TRUNK/CARGO AREA) UPPER CONTROL PANEL

1 2 HOCH TIEF 1 2 VOR ZUR 2 1 TIEF HOCH 2 1 ZUR VOR BLK/BLU WIRE BLK/GRY WIRE BLK/VIO WIRE BLK/YEL WIRE BRN WIRE DRIVER SEAT BACKREST ADJUSTMENT SWITCH DRIVER SEAT HEIGHT ADJUSTMENT SWITCH DRIVER SEAT BACKREST INCLINATION ADJUSTMENT MOTOR (IN DRIVER'S SEAT BACK) DRIVER SEAT HEIGHT ADJUSTMENT MOTOR (UNDER DRIVER'S SEAT) DRIVER SEAT PARTIALLY ELECTRIC SEAT ADJUSTMENT SWITCH FRONT PASSENGER SEAT BACKREST ADJUSTMENT SWITCH FRONT PASSENGER SEAT HEIGHT ADJUSTMENT MOTOR (UNDER FRONT PASSENGER'S SEAT) FRONT PASSENGER SEAT HEIGHT ADJUSTMENT SWITCH FRONT PASSENGER SEAT PARTIALLY ELECTRIC SEAT ADJUSTMENT SWITCH FUSE REAR SAM CONTROL UNIT W/ FUSE, RELAY MODULE (LEFT SIDE OF TRUNK/CARGO AREA) RED WIRE SEAT ADJUSTMENT RELAY WHT/BLK WIRE WHT/GRN WIRE

3 2 SIG SIG 30 RLS 5 4 SIG SIG 5 6 8 7 9 10 31 HS 1 HS 2 HS (+) MOTOR - MOTOR + 9 10 6 7 30 31 CAN B L CAN B H BLK WIRE BLK/GRY WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/RED WIRE BRN/WHT WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM DRIVE UNIT FRONT SAM CONTROL UNIT W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) GRN WIRE GRN/WHT WIRE GRY WIRE HALL SENSOR 1 HALL SENSOR 2 HOT AT ALL TIMES FUSE 17 OVERHEAD CONTROL PANEL CONTROL MODULE (W/ POWER GLASS TILTING/SLIDING SUNROOF) OVERHEAD CONTROL PANEL ELECTRONICS PANORAMIC SLIDING ROOF CONTROL MODULE (LEFT FRONT OF ROOF) PANORAMIC SLIDING ROOF CONTROL UNIT PANORAMIC SLIDING ROOF HALL SENSOR 1 PANORAMIC SLIDING ROOF HALL SENSOR 2 PANORAMIC SLIDING ROOF MOTOR PANORAMIC SLIDING ROOF ROLLER SUN BLIND DRIVE UNIT RED WIRE RED/BLU WIRE RED/WHT WIRE ROOF MOTOR SENSOR 1 HALL SENSOR 2 HALL SIG SIG HS 2 SIG HS 1 SUN BLIND MOTOR TILTING/ SLIDING ROOF TILTING/ SLIDING ROOF SWITCH VIO WIRE W/ OVERHEAD CONTROL PANEL WHT WIRE YEL WIRE

1 2 4 5 HS 1 HS (+) FH H FH T 1 2 5 4 CAN B L CAN B H 1 2 5 4 CAN B L CAN B H 30 31 4 1 3 PASSENGER SIDE POWER WINDOW SWITCH 4 5 2 1 FH H FH T H (+) HS 1 7 6 31 SIG 9 6 8 LED SIG BLK WIRE BLK/BRN WIRE BLK/PNK WIRE BLK/VIO WIRE BRN WIRE BRN/RED WIRE COMPUTER DATA LINES SYSTEM DOOR FUSE 2 FUSE 3 FUSE 41 GRN WIRE GRY WIRE H (-) HOT AT ALL TIMES HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED HS(+) LEFT FRONT DOOR CONTROL UNIT LEFT FRONT POWER WINDOW MOTOR (CENTER OF LEFT FRONT DOOR) LEFT FRONT POWER WINDOW SWITCH LEFT REAR DOOR CONTROL UNIT LEFT REAR POWER WINDOW MOTOR (CENTER OF LEFT REAR LEFT REAR POWER WINDOW SWITCH NCA WIRE REAR SIDE RIGHT REAR WINDOW POWER CHILD SAFETY WINDOW LOCK SWITCH SWITCH RED WIRE RED/GRY WIRE RED/WHT WIRE RIGHT FRONT DOOR CONTROL UNIT RIGHT FRONT POWER WINDOW MOTOR (CENTER OF RIGHT FRONT DOOR) RIGHT REAR DOOR CONTROL UNIT RIGHT REAR POWER WINDOW MOTOR (CENTER OF RIGHT REAR RIGHT REAR POWER WINDOW SWITCH SIG WHT WIRE

1 2 MOST MOST OUT MOST IN 31 30 WAKE UP 31 CAN A H CAN A L AUDIO/ COMAND CONTROLLER AUDIO/COMAND CONTROL PANEL AUDIO/COMAND DISPLAY BACK BUTTON BLK WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/VIO WIRE BLU/WHT WIRE BRN WIRE BRN/GRY WIRE CAN A H CAN A L 31 CAN A L GND SND RTN CAN A H CENTER INSTRUMENT PANEL SPEAKER COMAND CONTROL UNIT COMPUTER DATA LINES SYSTEM DELETE BUTTON EMERGENCY CALL SYSTEM CONTROL UNIT (IF EQUIPPED) FRONT SAM CONTROL UNIT W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUSE 11 FUSE 84 MODULE (LEFT SIDE OF TRUNK/CARGO AREA) GRN WIRE GRN/WHT WIRE GRY WIRE HOT AT ALL TIMES HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED LCT MOST DATA BUS CIRCUIT MULTI-FUNCTION ANTENNA NCA WIRE ORG/ WIRE ORG/WHT WIRE RADIO W/ AUTO PILOT SYSTEM REAR SAM CONTROL UNIT W/ FUSE, RELAY RED WIRE RED/BLK WIRE RED/BLU WIRE RED/BRN WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE SAT 1 2 3 4 SATELLITE DIGITAL AUDIO RADIO (SDAR) CONTROL UNIT SHIELD ANT W/O AUDIO 50 WHT WIRE YEL/BLK WIRE

1 2 3 4 31 30 WAKE UP 1 2 3 4 MIC - SHIELD MIC + 1 2 MOST OUT MOST IN BASS BASS SPEAKER BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BRN WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/ORG WIRE BRN/PNK WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE CONTROL UNIT (LEFT SIDE OF TRUNK) DAB BAND III ANTENNA DIGITAL AUDIO BROADCASTING CONTROL UNIT FUSE 67 MODULE (LEFT SIDE OF TRUNK/CARGO AREA) FUSE 84 GRN WIRE GRY WIRE HOT AT ALL TIMES LEFT FRONT DOOR SPEAKER LEFT REAR DOOR SPEAKER MOST MOST DATA BUS CIRCUIT MULTI-FUNCTION ANTENNA MUTE NCA WIRE ORG/ WIRE PNK WIRE REAR SAM CONTROL UNIT W/ FUSE, RELAY RED/BLU WIRE RIGHT FRONT DOOR SPEAKER RIGHT REAR DOOR SPEAKER RIGHT REAR SURROUND SPEAKER SHIELD ANT SHIELD ANT SOUND SYSTEM AMPLIFIER SOUND SYSTEM MICROPHONE TV 1, DAB BAND III ANTENNA TWEETER TWEETER LEFT REAR SURROUND SPEAKER VIO WIRE W/ MODEL CODE 204.0 W/ MODEL CODE 204.2 WAKE-UP WHT WIRE YEL WIRE YEL/BLK WIRE

BLK/BLU WIRE BLK/GRY WIRE BLK/RED WIRE BLK/VIO WIRE BLK/YEL WIRE BRN WIRE DRIVER SEAT BACKREST INCLINATION ADJUSTMENT MOTOR (IN DRIVER'S SEAT BACK) DRIVER SEAT FORE/AFT ADJUSTMENT MOTOR (UNDER DRIVER'S SEAT) DRIVER SEAT HEIGHT ADJUSTMENT MOTOR (UNDER DRIVER'S SEAT) DRIVER SEAT INCLINATION ADJUSTMENT MOTOR (UNDER DRIVER'S SEAT) FRONT ELECTRICAL PREFUSE BOX FRONT PASSENGER SEAT FORE/AFT ADJUSTMENT MOTOR FRONT PASSENGER SEAT HEIGHT ADJUSTMENT MOTOR (UNDER FRONT PASSENGER'S SEAT) FRONT PASSENGER SEAT INCLINATION ADJUSTMENT MOTOR (UNDER FRONT PASSENGER'S SEAT) FUSE (AT RIGHT REAR OF ENGINE COMPT) FUSE FUSE HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED LEFT FRONT BACKREST ADJUSTMENT SWITCH LEFT FRONT SEAT ADJUSTMENT SWITCH GROUP LEFT FRONT SEAT HEIGHT ADJUSTMENT SWITCH REAR SAM CONTROL UNIT W/ FUSE, RELAY MODULE (LEFT SIDE OF TRUNK/CARGO AREA) RED WIRE RIGHT FRONT BACKREST ADJUSTMENT SWITCH RIGHT FRONT SEAT ADJUSTMENT SWITCH GROUP RIGHT FRONT SEAT HEIGHT ADJUSTMENT SWITCH SEAT ADJUSTMENT RELAY VOR ZUR HOCH TIEF VOR ZUR HOCH TIEF WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE ZUR VOR TIEF HOCH ZUR VOR TIEF HOCH