Mercedes-Benz C-class W204/S204/С204 facelift (2011-2015) wht/yel Wiring diagrams

BLU GRY/ WIRE BLU WIRE BLU/BLK WIRE BRN WIRE BRN/BLK WIRE COMPT) (GLK-CLASS: RIGHT REAR ENGINE COMPT) DATA FUSE 156 GRY BLU/ WIRE GRY WIRE GRY/BLU WIRE HOT AT ALL TIMES FRONT ELECTRICAL PREFUSE BOX (C-CLASS: AT RIGHT REAR ENGINE LEFT CENTER AIR OUTLET FLAP ACTUATOR MOTOR (C-CLASS: LOWER LEFT CENTER AIR OUTLET SYMBOL ILLUMINATION LEFT FRONT SIDE AIR OUTLET SYMBOL ILLUMINATION NCA WIRE PTC HEATER BOOSTER (2.0L TURBO DIESEL) (UPPER CENTER OF HVAC UNIT) REAR AUTOMATIC AIR CONDITIONING OPERATING UNIT RED WIRE RED/BLK WIRE RED/VIO WIRE RED/WHT WIRE RIGHT CENTER AIR OUTLET SYMBOL ILLUMINATION RIGHT FRONT SIDE AIR OUTLET SYMBOL ILLUMINATION VIO/GRN WIRE VIO/RED WIRE VIO/WHT WIRE W/ AIR OUTLET SYMBOL ILLUMINATION W/O AIR OUTLET SYMBOL ILLUMINATION WHT/BLK WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/GRY WIRE WHT/RED WIRE WHT/VIO WIRE WHT/YEL WIRE YEL WIRE

1 2 3 GND NTC 1.8L TURBO 3.5L 2.1L TURBO DIESEL 2 3 11 3 SOLID STATE BLK/BLU WIRE BLK/RED WIRE BLU/BLK WIRE BLU/GRN WIRE BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/YEL (OR BRN/WHT) WIRE BRN/YEL WIRE COOLANT CIRCULATION PUMP COOLANT TEMPERATURE SENSOR ENGINE CONTROLS SYSTEM EXCEPT 2.1L TURBO DIESEL FRONT SAM CONTROL UNIT W/ FUSE, RELAY MODULE FUSE 12 FUSE 22 GRN/BLU WIRE GRY/BLU WIRE HOT W/ ENGINE CIRCUIT 87 RELAY ENERGIZED INTERIOR TEMPERATURE SENSOR W/ INTEGRATED FAN LEUS OVERHEAD CONTROL PANEL ELECTRONICS (W/ OVERHEAD CONTROL PANEL W/O CAN) (C-CLASS: CENTER REAR OF TRUNK) REAR BLEND AIR FLAP RED WIRE RED/BLK WIRE RED/BRN WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE REFRIGERANT COMPRESSOR (LEFT FRONT OF ENGINE) REFRIGERANT PRESSURE SENSOR (BOTTOM LEFT SIDE OF RADIATOR CONDENSER) REG SIG SOLID STATE TMOT VIO/WHT WIRE WHT/GRN WIRE WHT/VIO WIRE WHT/YEL WIRE

1 2 3 4 5 6 7 8 HR+ VR+ VL+ HL+ HR- VR- VL- HL- 1 2 3 4 CD LVDS - RES LVDS + GND 1 2 3 4 MOST OUT MOST IN 1 2 3 4 USB 1 2 3 4 5 6 7 8 9 10 11 12 GND USB D- 5 6 PNK WIRE ANST AUDIO/COMAND DISPLAY BLK WIRE BLK/WHT WIRE BLU ORG WIRE BLU WIRE BLU/BLK WIRE BLU/RED WIRE BRN WIRE BRN/GRN WIRE BRN/ORG WIRE BRN/PNK WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE CAN A H CAN A L CAN B L MUTE CAN B H 31 ON/OFF COMAND CONTROL UNIT COMAND FAN MOTOR COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEM DIAG FRONT SAM CONTROL MODULE FUSE 11 FUSE 16 W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUSE 26 GRN BRN/ WIRE GRN WIRE GRN/YEL WIRE HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED LEFT FRONT DOOR BASS SPEAKER LEFT FRONT DOOR TWEETER LEFT FRONT DOOR SPEAKER (W/O SOUND SYSTEM) LVDS MOST DATA BUS CIRCUIT NCA NCA WIRE NCA WIRE ORG/ BLU WIRE ORG/ WIRE PNK 15 16 17 WIRE PNK WIRE RED WIRE RED/YEL WIRE RES+ USB D- USB ELECTRICAL CONNECTOR VIO WIRE WAKE-UP WHT WIRE WHT/YEL WIRE YEL WIRE YEL/BLK WIRE

ADAPTIVE DAMPING CONTROL UNIT BLK/BLU WIRE BLK/YEL WIRE BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/YEL WIRE CAN E H CAN E L COMPUTER DATA LINES SYSTEM GND SIG GRN WIRE GRN/BLK WIRE GRN/WHT WIRE GRY/WHT WIRE H SIDE H SIDE GND L SIDE LEFT FRONT AXLE DAMPING VALVE UNIT LEFT FRONT BODY LATERAL ACCELERATION SENSOR NCA WIRE PNK/WHT WIRE RIGHT FRONT AXLE DAMPING VALVE UNIT RIGHT FRONT BODY LATERAL ACCELERATION SENSOR RIGHT FRONT LEVEL SENSOR (IN RIGHT FRONT WHEEL WELL) SIG SIG GND VIO/BLU WIRE WHT/BLU WIRE WHT/RED WIRE WHT/YEL WIRE YEL/BLU WIRE YEL/WHT WIRE

12 13 17 18 CAN E L CAN E H CAN B L CAN B H 30 31 CAN E H CAN E L ABBL-R 31 15 ABBL-L BLK/BLU WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L COMBINATION SWITCH COMPUTER DATA LINES SYSTEM FRONT ELECTRICAL PREFUSE BOX (AT RIGHT REAR OF ENGINE COMPT) FRONT FOG LAMPS INDICATOR LAMP FUSE GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/WHT WIRE GRN/YEL WIRE HEADLAMP CONTROL UNIT HEADLAMP FLASHER/ HIGH BEAM SWITCH HIGH BEAM INDICATOR HOT AT ALL TIMES ILLUMINATION INSTRUMENT CLUSTER LEFT ACTIVE CURVE ILLUMINATION ACTUATOR MOTOR LEFT ACTIVE CURVE ILLUMINATION POSITION SENSOR LEFT CORNERING LEFT FRONT LAMP UNIT LEFT HEADLAMP RANGE ADJUSTMENT ACTUATOR MOTOR LEFT LIGHT DISTRIBUTION ACTUATOR MOTOR LEFT LIGHT DISTRIBUTION POSITION SENSOR LEFT REAR LAMP UNIT LEFT XENON BULB W/ INTEGRATED IGNITION MODULE LEFT XENON LIGHT POWER SUPPLY MODULE (BEHIND LEFT SIDE OF FRONT BUMPER) LOW BEAM INDICATOR LAMP LOW BEAM SWITCH PNK/WHT WIRE REAR FOG LAMP REAR FOG LAMP INDICATOR RED WIRE RED/BLU WIRE RIGHT DAYTIME RUNNING LAMPS HEADLAMPS (IF EQUIPPED) RIGHT REAR LAMP UNIT SIG SIG 31 31 CAN G L CAN G H STEERING COLUMN MODULE CONTROL UNIT W/O ECO START/STOP FUNCTION WHT/BLU WIRE WHT/RED WIRE WHT/YEL WIRE YEL/BLK WIRE YEL/WHT WIRE

1 2 3 4 5 6 7 8 9 10 11 12 WH (-) (-) SV WH (DATA) BLK/GRN WIRE BLK/PNK WIRE BLK/WHT WIRE BLK/YEL WIRE BLU/BRN WIRE BLU/YEL WIRE BRN WIRE BRN/BLU WIRE BRN/RED WIRE BRN/YEL WIRE BUMPER) CAN B L CAN B H (-) SH WV (-) 31 CAN E H CAN E L CENTER LEFT FRONT PARKTRONIC DISTANCE SENSOR (LEFT FRONT BUMPER) CENTER RIGHT FRONT PARKTRONIC DISTANCE SENSOR (RIGHT FRONT COMPUTER DATA LINES SYSTEM FRONT SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUSE 59 MODULE W/ FUSE, RELAY MODULE (RIGHT SIDE OF TRUNK/CARGO AREA) GRN WIRE GRN/WHT WIRE GRY/YEL WIRE HOT W/ CIRCUIT 15 RELAY ENERGIZED INNER LEFT FRONT PARKTRONIC DISTANCE SENSOR (LEFT FRONT BUMPER) INNER LEFT REAR PARKTRONIC DISTANCE SENSOR INNER RIGHT FRONT PARKTRONIC DISTANCE SENSOR (RIGHT FRONT INNER RIGHT REAR PARKTRONIC DISTANCE SENSOR (RIGHT REAR INSTRUMENT PANEL PARKTRONIC WARNING INDICATOR LIN 1 OUTER LEFT FRONT PARKTRONIC DISTANCE SENSOR (LEFT FRONT BUMPER) OUTER LEFT REAR PARKTRONIC DISTANCE SENSOR OUTER RIGHT FRONT PARKTRONIC DISTANCE SENSOR (RIGHT FRONT BUMPER) OUTER RIGHT REAR PARKTRONIC DISTANCE SENSOR (RIGHT REAR BUMPER) PARKTRONIC BUTTON PARKTRONIC CONTROL UNIT (RIGHT FRONT FOOTWELL) REAR PARKING SYSTEM WARNING INDICATOR REAR SAM CONTROL RED/BLU WIRE UPPER CONTROL PANEL CONTROL UNIT WH (+) (+) SV WHT/RED WIRE WHT/YEL WIRE WV (DATA) YEL/RED WIRE YEL/VIO WIRE YEL/WHT WIRE

15 SIG 30 30 (+) 31 SIG 58 SL-L SL-R (+) PNK WIRE 7 8 9 10 11 12 13 14 (+) ANST ZV ANT BSL-R ANTI-THEFT SYSTEM SOUND SYSTEMS SEATS SYSTEM SUPPLEMENTAL BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/RED WIRE BLK/VIO WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/VIO WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/PNK WIRE BRN/RED WIRE BRN/YEL WIRE BSL-R BSL-L ZV CAN B H CAN B L 31 31 31 31 CAN B L CAN B H (+) (+) SIG LIN COMPUTER DATA LINES SYSTEM DEFOGGER SYSTEM DOOR LOCKS SYSTEM ENGINE CONTROLS SYSTEM EXTERIOR LIGHTS SYSTEM ANTI-THEFT SYSTEM EXTERIOR LIGHTS SYSTEM EXTERIOR LIGHTS SYSTEM TRUNK, TAILGATE, FUEL DOORS SYSTEM EXTERIOR LIGHTS SYSTEM INTERIOR LIGHTS SYSTEM FRONT ELECTRICAL PREFUSE BOX (AT RIGHT REAR OF ENGINE COMPT) FUSE FUSE 164 GRN WIRE GRN/BLU WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/BLU WIRE GRY/PNK WIRE GRY/VIO WIRE GRY/YEL WIRE HFE HFE SIG SIG SIG HOT AT ALL TIMES HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED INSTRUMENT CLUSTER SYSTEM POWER DISTRIBUTION SYSTEM INSTRUMENT CLUSTER, ANTI-THEFT SYSTEMS INSTRUMENT CLUSTER, ANTI-THEFT SYSTEMS INSTRUMENT CLUSTER, ANTI-THEFT SYSTEMS PNK BSL-L WIRE PNK/RED WIRE POWER DISTRIBUTION SYSTEM REAR SAM CONTROL UNIT W/ FUSE, RELAY MODULE (RIGHT SIDE OF TRUNK/CARGO AREA) RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE RFL-R RFL-L NSL-R NSL-L RSS EIN RSS AUS SEATS SYSTEM SEATS SYSTEM SUPPLEMENTAL RESTRAINTS SYSTEM SIG SIG SIG SIG SOUND SYSTEMS SOUND SYSTEMS SEATS SYSTEM SUPPLEMENTAL RESTRAINTS SYSTEM TRUNK, TAILGATE, FUEL DOORS SYSTEM TRUNK, TAILGATE, FUEL DOORS SYSTEM STARTING/CHARGING SYSTEM VIO/BLU WIRE VIO/WHT WIRE W/O ECO START/STOP FUNCTION WHT/BLU WIRE WHT/YEL WIRE WIPER/WASHER SYSTEM WIPER/WASHER SYSTEM SOUND SYSTEMS EXTERIOR LIGHTS SYSTEM YEL WIRE

AUTOMATIC CHILD SEAT RECOGNITION AIR BAG OFF IND LAMP BLK/GRY WIRE BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/PNK WIRE BRN/VIO WIRE BRN/YEL WIRE CAN-E L CAN-E H COMPUTER DATA LINES SYSTEM CRH OUT ANLG DRIVER SEAT BELT BUCKLE RESTRAINT SYSTEM SWITCH (IN DRIVER SEAT BELT BUCKLE) FUSE 15 FUSE 18 FUSE 21 GRN WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/GRN WIRE GRY/YEL WIRE HOT AT ALL TIMES HOT W/ CIRCUIT KB, FA- KB, FA+ LEFT FRONT DOOR PRESSURE SENSOR (IN LEFT FRONT DOOR) LIN LIN 1 ME-SFI (ME) CONTROL UNIT (3.5L: LEFT SIDE OF ENGINE) PNK/BLK WIRE PNK/WHT WIRE REAR HEAD RESTRAINTS BUTTON RED/BRN WIRE RED/GRN WIRE RIGHT FRONT DOOR PRESSURE SENSOR (IN RIGHT FRONT DOOR) SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT (UNDER FRONT OF CENTER CONSOLE) UPPER CONTROL PANEL CONTROL UNIT VIO WIRE VIO/GRN WIRE W/ WEIGHT SENSING SYSTEM WHT/YEL WIRE YEL WIRE YEL/BRN WIRE

BLK WIRE BLK/GRY WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/VIO WIRE BRN/YEL WIRE DRIVER AIR BAG SQUIB 1 DRIVER AIR BAG SQUIB 2 DRIVER KNEEBAG SQUIB (IF EQUIPPED) (LOWER LEFT SIDE OF DASH) FANFARE HORNS, AIR BAG CLOCK SPRING CONTACT (TOP OF STEERING COLUMN) GRN WIRE GRN/YEL WIRE GRY WIRE LEFT FRONTAL ACCELERATION SENSOR (BEHIND LEFT SIDE OF FRONT BUMPER) LEFT REAR SIDE BAG SQUIB (IF EQUIPPED) (LEFT REAR "C" PILLAR) LEFT SIDE AIR BAG SENSOR (BASE OF LEFT "B" PILLAR) NCA WIRE PNK/BLK WIRE RED WIRE RED/VIO WIRE RIGHT FRONTAL ACCELERATION SENSOR (BEHIND RIGHT SIDE OF FRONT BUMPER) RIGHT SIDE AIR BAG SENSOR (BASE RIGHT "B" PILLAR) STEERING COLUMN MODULE CONTROL UNIT (TOP OF STEERING COLUMN) VIO WIRE VIO/GRN WIRE WHT WIRE WHT/BRN WIRE WHT/YEL WIRE YEL WIRE

-1 +2 1 2 3 4 5 6 7 8 9 10 GND GND 1-2, 3-4, 5-6, 7-8) 4 2 1 5 31 CAN B H CAN B L 30 BLK/WHT WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/RED WIRE BRN/YEL WIRE CAN B H CAN B L CAN B L CAN B H COMPUTER DATA LINES SYSTEM FRONT SAM CONTROL UNIT W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUSE 2 FUSE 61 GND SIG GRN/BLK WIRE GRN/BLU WIRE GRN/GRY WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/BLU WIRE GRY/PNK WIRE HFE HOT AT ALL TIMES HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED LEFT FRONT DOOR CONTROL UNIT (FRONT OF LEFT FRONT DOOR) NCA WIRE ORG/ WIRE ORG/GRN WIRE REAR SAM CONTROL UNIT W/ FUSE, RELAY MODULE (RIGHT SIDE OF TRUNK) RED/WHT WIRE RED/YEL WIRE RIGHT TAILGATE CONTROL OBSTRUCTION SENSOR STRIP (RIGHT SIDE OF TAILGATE) SIG SIG SIG TAILGATE CENTRAL LOCKING MOTOR TAILGATE CONTROL BUTTON (W/ AUTOMATIC TAILGATE, KEYLESS GO SYSTEM) TAILGATE CONTROL DRIVE UNIT TAILGATE CONTROL MAGNETIC CLUTCH TAILGATE CONTROL POSITION SENSOR TAILGATE CONTROL TAILGATE ELECTRIC CONTROL MOTOR HALL SENSOR TAILGATE CONTROL UNIT (GLK-CLASS) TAILGATE CONTROL WARNING BUZZER (BOTTOM OF TAILGATE) TAILGATE EXTERNAL OPERATION SWITCH TAILGATE LOCKING ELEMENT (GLK-CLASS) TRUNK LID EMERGENCY OPENING SWITCH (TRUNK LID) W/ AUTOMATIC TAILGATE W/O AUTOMATIC TAILGATE WHT WIRE WHT/BLU WIRE WHT/YEL WIRE YEL WIRE