Mercedes-Benz C-class W204/S204 (2006-2011) blu/gry Wiring diagrams

ABS IND. BLK WIRE BLK/RED WIRE BLS_H BLS_L BLS_M BLU/BLK WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/WHT WIRE BRAKE FLUID, PARKING BRAKE WARNING IND BRN WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/VIO WIRE CAN E H CAN E H CAN E L CAN E L CAN H H CAN H L COMPUTER DATA LINES SYSTEM DF HR M DF HR S DF VL S DF VL M 31 ECO 31 ELECTRONIC STABILITY PROGRAM CONTROL UNIT (LEFT FRONT OF ENGINE COMPT) ESP WARNING LAMP IND FRONT AXLE BRAKE PRESSURE SENSOR FRONT AXLE SWITCH OVER VALVE FRONT PRESSURE SENSOR FRONT SAM CONTROL MODULE W/ FUSE/ RELAY MODULE FUSE 20 FUSE 1 FUSE 14 FUSE 21 GRN WIRE GRN/WHT WIRE GRN/YEL WIRE HIGH PRESSURE, RETURN PUMP MOTOR HOT AT ALL TIMES HOT IN ON OR START INSTRUMENT CLUSTER LEFT FRONT AXLE RPM SENSOR (ON LEFT FRONT STEERING KNUCKLE ASSEMBLY) LEFT FRONT PRESSURE REGULATOR VALVE (HOLD) LEFT FRONT PRESSURE REGULATOR VALVE (RELEASE) LEFT REAR AXLE RPM SENSOR (ON LEFT REAR WHEEL HUB ASSEMBLY) LEFT REAR PRESSURE REGULATOR VALVE (HOLD) LEFT REAR PRESSURE REGULATOR VALVE (RELEASE) NCA WIRE PML 30 DF VR M DF VR S BLA DF HL S DF HL M PNK/BLU WIRE PNK/GRN WIRE PNK/WHT WIRE REAR PRESSURE SENSOR REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT SIDE OF TRUNK/CARGO AREA) RED/BLK WIRE RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE RIGHT FRONT AXLE RPM SENSOR (ON RIGHT FRONT STEERING KNUCKLE ASSEMBLY) RIGHT FRONT PRESSURE REGULATOR VALVE (HOLD) RIGHT FRONT PRESSURE REGULATOR VALVE (RELEASE) RIGHT REAR AXLE RPM SENSOR (ON RIGHT REAR WHEEL HUB ASSEMBLY) RIGHT REAR PRESSURE REGULATOR VALVE (HOLD) RIGHT REAR PRESSURE REGULATOR VALVE (RELEASE) TAXIMETER ELECTRICAL CONNECTOR TRACTION SYSTEM HYDRAULIC UNIT VIO WIRE VIO/WHT WIRE WHT GRN/ WIRE WHT WIRE YAW RATE, LATERAL, LONGITUDINAL ACCELERATION SENSOR (UNDER DRIVER'S SEAT)

12 13 17 18 CAN E L CAN E H CAN B L CAN B H 2 3 1 31 LIN 1 30 30 31 5 19 CAN-B H CAN-B L EWD 4 3 2 1 S_GB 30 6 5 4 3 2 1 ASS OFF ASS LED 31 6 5 4 3 2 1 OFF INTERIOR PROTECTION SWITCH ALARM SIREN (W/ ANTI-THEFT ALARM SYSTEM) (REAR OF RIGHT FRONT WHEELWELL) ANTI-THEFT ALARM SYSTEM INDICATOR LAMP INSTRUMENT PANEL SWITCH GROUP BLK WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/PNK WIRE BRN WIRE BRN/BLK WIRE BRN/GRY WIRE BRN/RED WIRE CAN B L CAN B H CAN-B H CAN-B L COMPUTER DATA LINES SYSTEM DISPLAY EMERGENCY CALL SYSTEM CONTROL UNIT (CENTER FRONT OF TRUNK) ENGINE HOOD ANTI-THEFT ALARM SYSTEM SWITCH (W/ ANTI-THEFT ALARM SYSTEM) FAN RELAY MODULE FRONT ELECTRICAL PREFUSE BOX (AT RIGHT REAR OF ENGINE COMPT) FUSE 105 FUSE 17 FUSE 18 FUSE 46 FUSE 89 FUSE 90 GRN WIRE GRN/WHT WIRE GRY/YEL WIRE HORNS SYSTEM HOT AT ALL TIMES HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED INFO INFO LED INSTRUMENT CLUSTER INTERIOR PROTECTION RECEIVER INTERIOR PROTECTION, TOW-AWAY PROTECTION CONTROL UNIT (IF EQUIPPED) IRS LED IRS-OFF LEFT INTERIOR PROTECTION TRANSMITTER LEFT REAR WINDOW GLASS BREAKAGE SENSOR NCA WIRE OF TRUNK) OFF TOWING SENSOR BUTTON 8 7 6 4 3 2 SOS LED WS LED INFO LED WS INFO SOS REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT SIDE OF TRUNK/CARGO AREA) REAR WINDOW GLASS BREAKAGE SENSOR RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRY WIRE RIGHT INTERIOR PROTECTION TRANSMITTER RIGHT REAR WINDOW GLASS BREAKAGE SENSOR SOS SOS LED W/ MODEL CODE 204.2 WHT WIRE WS LED YEL WIRE YEL/RED WIRE YEL/VIO WIRE

ANT GPS SHIELD BLK WIRE BLK/YEL WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/PNK WIRE BLU/VIO WIRE BRN WIRE CAN D H CAN D L CENTER INSTRUMENT PANEL SPEAKER COMAND CONTROL UNIT COMPUTER DATA LINES SYSTEM DIAGNOSTIC CONNECTOR (UNDER LEFT SIDE OF DASH) ELECTRONICS (W/O CAN) EMERGENCY CALL SYSTEM ANTENNA (CENTER OF HAT SHELF) EMERGENCY CALL SYSTEM BUTTON EMERGENCY CALL SYSTEM CONTROL UNIT (CENTER FRONT OF TRUNK) FRONT SAM CONTROL UNIT W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUSE 83 (LEFT SIDE OF TRUNK/CARGO AREA) FUSE 87 GLOBAL POSITIONING SYSTEM ANTENNA SPLITTER (RIGHT FRONT OF TRUNK) GPS GRY WIRE GRY/BLU WIRE GRY/WHT WIRE HOT AT ALL TIMES HOT W/ CIRCUIT INFO MB-INFO, BREAKDOWN ASSISTANCE BUTTON MIKR + MIKR - (-) KEEP ON MULTI-FUNCTION ANTENNA MUTE NCA WIRE OVERHEAD CONTROL PANEL CONTROL MODULE (W/ CAN) OVERHEAD CONTROL PANEL REAR SAM CONTROL UNIT W/ FUSE, RELAY MODULE RED/BLU WIRE SHIELD SIG ANT NOT SHIELD 1 2 SOS LED WS LED INFO LED SOS WS INFO CRASH SOUND SYSTEM AMPLIFIER CONTROL UNIT (LEFT SIDE OF TRUNK) SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT (UNDER FRONT OF CENTER CONSOLE) TEL TELEDIAGNOSIS VIO WIRE W/ NAVIGATION W/ SOUND SYSTEM W/O NAVIGATION W/O SOUND SYSTEM YEL WIRE YEL/BLK WIRE YEL/RED WIRE YEL/VIO WIRE

1 2 3 4 5 6 30 RLS SIG SIG SIG SIG GND 1 2 3 4 5 6 7 8 LIN 2 1 2 3 4 5 6 IRS OFF IRS LED 30 32 31 29 28 27 SOS INFO WS INFO LED WS LED SOS LED 30 S GB 31 ASS LED ASS OFF 31 FL 8 7 6 5 4 3 2 1 SOS LED WS LED INFO LED AMBIENT LAMP AUTOMATIC AIR CONDITIONING CONTROL, OPERATING UNIT AUTOMATIC DIMMING MIRROR BLK WIRE BLK/GRY WIRE BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/PNK WIRE BLU/WHT WIRE BRN WIRE BRN/BLK WIRE BRN/GRY WIRE BRN/RED WIRE BRN/WHT WIRE CAN B L CAN B H COMPASS DISPLAY BUTTON (USA) COMPASS MODULE W/ DISPLAY (USA) COMPUTER DATA LINES SYSTEM EMERGENCY CALL SYSTEM CONTROL UNIT EQUIPMENT) RAIN/LIGHT SENSOR (W/ RAIN/LIGHT SENSOR) (RAIN/LIGHT FRONT DOME LAMP SWITCH FRONT SAM CONTROL UNIT W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUSE 12 FUSE 46 GARAGE DOOR OPENER GARAGE DOOR OPENER BUTTON 1 GARAGE DOOR OPENER BUTTON 2 GARAGE DOOR OPENER BUTTON 3 GARAGE DOOR OPENER INDICATOR LAMP GND NTC (+) GRN WIRE GRN/WHT WIRE GRY WIRE GRY/BLU WIRE GRY/RED WIRE GRY/YEL WIRE HOT AT ALL TIMES HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED INSIDE REARVIEW MIRROR INTERIOR LAMP AUTOMATIC FUNCTION SWITCH INTERIOR PROTECTION RECEIVER INTERIOR PROTECTION SWITCH (W/ TOW-WAY PROTECTION, INTERIOR PROTECTION) INTERIOR PROTECTION, TOW-WAY PROTECTION CONTROL UNIT (IF EQUIPPED) INTERIOR TEMPERATURE SENSOR W/ INTEGRATED FAN LEFT FRONT INTERIOR LAMP LEFT FRONT READING LAMP SWITCH LEFT INTERIOR PROTECTION TRANSMITTER LEFT REAR WINDOW GLASS BREAKAGE SENSOR (W/ MODEL CODE 204.2) LEFT RIGHT READING READING LAMP LAMP LIGHT SENSOR (W/ STANDARD LIN 2 NCA WIRE NTC- OVERHEAD CONTROL PANEL ELECTRONICS PNK WIRE POWER TOPS SYSTEM REAR DOME LAMP, SWITCH REAR SAM CONTROL UNIT REAR WINDOW GLASS BREAKAGE SENSOR (W/ MODEL CODE 204.2) RED WIRE RED/BLK WIRE RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/VIO WIRE RED/WHT WIRE RIGHT FRONT INTERIOR LAMP RIGHT FRONT READING LAMP SWITCH RIGHT INTERIOR PROTECTION TRANSMITTER RIGHT REAR WINDOW GLASS BREAKAGE SENSOR (W/ MODEL CODE 204.2) SENSOR) (TOP CENTER OF WINDSHIELD) SIG LIN 2 TOWING SENSOR BUTTON (W/ TOW-WAY PROTECTION, INTERIOR PROTECTION) USA USA DRIVER'S SEAT) 1 2 3 4 5 6 7 8 9 10 W/ FUSE, RELAY MODULE (LEFT SIDE OF TRUNK/CARGO AREA) W/ MODEL CODE 204.2 WHT WIRE WS INFO SOS 31 YEL WIRE YEL/RED WIRE YEL/VIO WIRE

1 2 3 4 5 6 7 8 LIN 2 1 2 3 4 5 6 IRS OFF IRS LED 30 32 31 29 28 27 SOS INFO WS INFO LED WS LED SOS LED 30 S GB 31 ASS LED ASS OFF 31 FL 31 HS 1 HS(+) HS 2 MOTOR - MOTOR + 8 7 6 5 4 3 2 1 SOS LED WS LED INFO LED AUTOMATIC DIMMING MIRROR BLK WIRE BLK/GRY WIRE BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/PNK WIRE BRN WIRE BRN/BLK WIRE BRN/GRY WIRE BRN/RED WIRE CAN B L CAN B H CAN B L CAN B H LIN 2 30 31 COMPASS DISPLAY BUTTON (USA) COMPASS MODULE W/ DISPLAY (USA) COMPUTER DATA LINES SYSTEM EMERGENCY CALL SYSTEM CONTROL UNIT FRONT DOME LAMP SWITCH FRONT SAM CONTROL UNIT W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUSE 17 FUSE 46 GARAGE DOOR OPENER BUTTON 1 GARAGE DOOR OPENER BUTTON 2 GARAGE DOOR OPENER BUTTON 3 GARAGE DOOR OPENER INDICATOR LAMP GRN WIRE GRY WIRE GRY/BLU WIRE GRY/RED WIRE GRY/YEL WIRE HOT AT ALL TIMES INSIDE REARVIEW MIRROR INTERIOR LAMP AUTOMATIC FUNCTION SWITCH INTERIOR PROTECTION RECEIVER INTERIOR PROTECTION SWITCH (W/ TOW-WAY PROTECTION, INTERIOR PROTECTION) INTERIOR PROTECTION, TOW-WAY PROTECTION CONTROL UNIT (IF EQUIPPED) INTERIOR TEMPERATURE SENSOR W/ INTEGRATED FAN LEFT FRONT INTERIOR LAMP LEFT FRONT READING LAMP SWITCH LEFT INTERIOR PROTECTION TRANSMITTER LEFT READING LAMP GARAGE DOOR OPENER LEFT REAR WINDOW GLASS BREAKAGE SENSOR (W/ MODEL CODE 204.2) LIN 2 NCA WIRE OVERHEAD CONTROL PANEL CONTROL MODULE PNK WIRE POWER TOPS SYSTEM REAR DOME LAMP, SWITCH REAR SAM CONTROL UNIT W/ FUSE, RELAY MODULE REAR WINDOW GLASS BREAKAGE SENSOR (W/ MODEL CODE 204.2) RED WIRE RED/BLK WIRE RED/BLU WIRE RED/VIO WIRE RIGHT AMBIENT READING LAMP LAMP RIGHT FRONT INTERIOR LAMP RIGHT FRONT READING LAMP SWITCH RIGHT INTERIOR PROTECTION TRANSMITTER RIGHT REAR WINDOW GLASS BREAKAGE SENSOR (W/ MODEL CODE 204.2) TILTING/SLIDING ROOF SWITCH TOWING SENSOR BUTTON (W/ TOW-WAY PROTECTION, INTERIOR PROTECTION) USA VIO WIRE W/ MODEL CODE 204.2 WHT WIRE WS INFO SOS 31 YEL WIRE YEL/RED WIRE YEL/VIO WIRE

AIR CONDITIONING SYSTEM BLK WIRE BLK/GRY WIRE BLK/ORG WIRE BLK/RED WIRE BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/PNK WIRE BLU/RED WIRE BLU/VIO WIRE BLU/YEL WIRE BRN WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/YEL WIRE CYLINDER 1 INJECTION VALVE CYLINDER 2 INJECTION VALVE CYLINDER 3 INJECTION VALVE DCP DCM GRN/BLK WIRE GRN/BLU WIRE GRN/BRN WIRE GRN/RED WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/BRN WIRE GRY/RED WIRE GRY/YEL WIRE HAV IGNITION COILS (TOP RIGHT SIDE OF ENGINE) KWDGA LEFT KNOCK SENSOR ME-SFI (ME) CONTROL MODULE OIL LEVEL SWITCH (LEFT SIDE OF OIL PAN) OSS NWSA 2 PNK WIRE PNK/BLU WIRE PNK/GRN WIRE PNK/GRY WIRE PNK/VIO WIRE PNK/YEL WIRE RADIO INTERFERENCE SUPPRESSION CAPACITOR 1 (TOP RIGHT SIDE OF ENGINE) RED/BLK WIRE RED/BLU WIRE RED/GRY WIRE RED/WHT WIRE RIGHT EXHAUST CAMSHAFT SOLENOID RIGHT INTAKE CAMSHAFT SOLENOID RIGHT KNOCK SENSOR TMOT EA TANS TO SPARK PLUGS VIO/BLK WIRE VIO/BRN WIRE VIO/GRY WIRE VIO/RED WIRE WHT WIRE WHT/BLK WIRE WHT/BRN WIRE WHT/RED WIRE YEL/BLK WIRE YEL/GRN WIRE YEL/GRY WIRE YEL/RED WIRE

AIR CONDITIONING SYSTEM BLK WIRE BLK/GRY WIRE BLK/ORG WIRE BLK/RED WIRE BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/PNK WIRE BLU/RED WIRE BLU/VIO WIRE BLU/YEL WIRE BRN WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/YEL WIRE CYLINDER 1 INJECTION VALVE CYLINDER 2 INJECTION VALVE CYLINDER 3 INJECTION VALVE DCP DCM GRN/BLK WIRE GRN/BLU WIRE GRN/BRN WIRE GRN/RED WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/BRN WIRE GRY/RED WIRE GRY/YEL WIRE HAV IGNITION COILS (TOP RIGHT SIDE OF ENGINE) KWDGA LEFT KNOCK SENSOR ME-SFI (ME) CONTROL MODULE OIL LEVEL SWITCH (LEFT SIDE OF OIL PAN) OSS NWSA 2 PNK WIRE PNK/BLU WIRE PNK/GRN WIRE PNK/GRY WIRE PNK/VIO WIRE PNK/YEL WIRE RADIO INTERFERENCE SUPPRESSION CAPACITOR 1 (TOP RIGHT SIDE OF ENGINE) RED/BLK WIRE RED/BLU WIRE RED/GRY WIRE RED/WHT WIRE RIGHT EXHAUST CAMSHAFT SOLENOID RIGHT INTAKE CAMSHAFT SOLENOID RIGHT KNOCK SENSOR TMOT EA TANS TO SPARK PLUGS VIO/BLK WIRE VIO/BRN WIRE VIO/GRY WIRE VIO/RED WIRE WHT WIRE WHT/BLK WIRE WHT/BRN WIRE WHT/RED WIRE YEL/BLK WIRE YEL/GRN WIRE YEL/GRY WIRE YEL/RED WIRE