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

1 2 MOST 1 2 MOST OUT MOST IN 1 VID 3 4 WAKE UP AFM ANT AUDIO/COMAND CONTROL PANEL AUDIO/COMAND CONTROLLER BACK BUTTON BLK WIRE BLK/WHT WIRE BLU/BLK WIRE BLUETOOTH ANTENNA (GLK-CLASS: FRONT CENTER OF INTERIOR ROOF) (C-CLASS: FRONT BRN WIRE BRN/GRN WIRE BRN/ORG WIRE CAN A H CAN A L COMAND CONTROL UNIT COMPUTER DATA LINES SYSTEM DAB DELETE BUTTON DIGITAL AUDIO BROADCASTING CONTROL UNIT (GLK CLASS: CENTER FRONT OF CARGO AREA) DVD PLAYER FM, AM, CL (ZV) ANTENNA AMPLIFIER (CENTER REAR OF ROOF) GRN WIRE MOST DATA BUS CIRCUIT MULTIMEDIA INTERFACE CIRCUIT NCA WIRE ORG/ WIRE RED WIRE RED/BLU WIRE RIGHT FRONT DOOR BASS SPEAKER RIGHT FRONT DOOR SPEAKER (W/O SOUND SYSTEM) RIGHT FRONT DOOR TWEETER SHIELD VIO/BLU WIRE WHT WIRE YEL 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

16 15 23 2 BSL R 24 22 21 NSL-L RFL-L RFL-R 31 30 CAN B L CAN B H 31 LIN 2 4 1 2 30 CAN E L CAN E H 58 58 54 SL R 6 7 CAN B L CAN B H BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BRN WIRE BRN/GRY WIRE BRN/RED WIRE BSL L COMBINATION SWITCH COMPUTER DATA LINES SYSTEM FOG BACKUP BACKUP LAMP LAMP LAMP FRONT SAM CONTROL UNIT W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUSE 13 FUSE 164 GRN WIRE GRN/BLU WIRE GRN/WHT WIRE GRY WIRE GRY/BLU WIRE GRY/RED WIRE GRY/VIO WIRE GRY/YEL WIRE HEADLAMP FLASHER/ HIGH BEAM SWITCH HOT AT ALL TIMES INNER STOP/ TAIL LAMP INNER TURN SIGNAL LAMP TAIL/ STOP/ PARKING TAIL LAMP LAMP LEFT LICENSE PLATE LAMP CENTER STOP LAMP LEFT REAR LAMP UNIT NSL-R PNK SL L WIRE PNK WIRE PNK/RED WIRE RAIN/LIGHT SENSOR (W/ RAIN/LIGHT SENSOR) REAR SAM CONTROL UNIT W/ FUSE, RELAY MODULE (RIGHT SIDE OF TRUNK) RED WIRE RED/BLU WIRE RIGHT LICENSE PLATE LAMP RIGHT REAR LAMP UNIT SIDE MARKER LAMP SIDE MARKER LAMP FOG LAMP STEERING COLUMN MODULE CONTROL UNIT (TOP OF STEERING COLUMN) STOP STOP/ TURN SIGNAL LAMP TAIL/ PARKING LAMP TURN SIGNAL LAMPS SWITCH VIO WIRE VIO/BLU WIRE W/O ECO START/STOP FUNCTION W/ ECO START/STOP FUNCTION WHT WIRE YEL WIRE

1 2 3 4 USB (-) CABLE DET USB (+) 2 1 MOST 4 3 2 1 MOST IN MOST OUT BLK WIRE BLU WIRE BLU/BLK WIRE BRN WIRE COMAND CONTROL UNIT FUSE 81 (RIGHT SIDE OF TRUNK/CARGO AREA) GRN WIRE GRY/BLU WIRE HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED MEDIA INTERFACE CONTROL UNIT MEDIA INTERFACE ELECTRICAL CONNECTOR MOST DATA BUS CIRCUIT NCA WIRE ORG/ WIRE REAR SAM CONTROL UNIT W/ FUSE, RELAY MODULE RED WIRE RED/WHT WIRE VID VIO/BLU WIRE WAKE-UP WHT WIRE YEL WIRE YEL/BLU WIRE

AC HOUSING, ADDITIONAL BATTERY ADDITIONAL BATTERY RELAY CIRCUIT 30 ADDITIONAL FUSE ALTERNATOR STARTER BATTERY SENSOR BLK WIRE BLU/WHT WIRE BRN WIRE BRN/BLU WIRE BRN/GRN WIRE COMPT) FROM FUSE 158 (DIAGRAM 1 OF 5) FRONT ELECTRICAL PREFUSE BOX (AT RIGHT REAR OF ENGINE FUSE FUSE 158 160 FUSE 159 161 FUSE 159 FUSE 157 FUSE 160 162 FUSE 162 FUSE 164 FUSE 46 FUSE 47 RES FUSE 60 FUSE 61 FUSE 64 FUSE FUSE FUSE FUSE 154 153 FUSE MODULE CIRCUIT 30 FUSE GLOW OUTPUT STAGE (2.1L TURBO DIESEL) GRY/YEL WIRE MULTICONTOUR SEAT PNEUMATIC PUMP (GLK-CLASS, C-CLASS SEDAN) ON-BOARD ELECTRICAL SYSTEM BATTERY PTC SUPPLEMENTAL HEATER RESTRAINT BOOSTER SYSTEM CONTROL UNIT QUIESCENT CURRENT CUTOUT RELAY REAR SAM CONTROL UNIT W/ FUSE, RELAY REAR WINDOW ANTENNA FM ANTENNA AMPLIFIER, FM, AM, CL (ZV) ANTENNA AMPLIFIER RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE RES+ SPECIAL- PURPOSE VEHICLE MULTIFUNTION CONTROL UNIT SUPPLEMENTAL RESTRAINTS SYSTEM CONTROL UNIT TAILGATE CONTROL UNIT (W/ AUTOMATIC TAILGATE) TO CIRCUIT 15 RELAY (DIAGRAM 2 OF 5) TO DC/AC CONVERTER CONTROL UNIT (DIAGRAM 3 OF 5) TO FRONT SAM CONTROL UNIT W/ FUSE, RELAY MODULE (DIAGRAM 4 OF 5) TO FUSE 150 (DIAGRAM 1 OF 5) TO FUSE 89 (DIAGRAM 2 OF 5) VIO/BLU WIRE W/O ECO START/ STOP FUNCTION W/ ECO START/ STOP FUNCTION WHT/GRN 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

BLK WIRE BLK/GRY WIRE BLK/VIO WIRE BLK/WHT WIRE BLK/YEL WIRE BLU/BLK WIRE BLU/GRN WIRE BRN WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/PNK WIRE BRN/VIO WIRE BRN/YEL WIRE CAN L COMPUTER DATA LINES SYSTEM DRIVER ETR (GUS) SQUIB DRIVER PELVIS AIR BAG SQUIB (IF EQUIPPED) (OUTER SIDE OF DRIVER FRONT SEAT) DRIVER SEAT NECK-PRO HEAD RESTRAINT SOLENOID (C-CLASS: IN DRIVER HEADREST) FRONT ELECTRICAL PRE-FUSE BOX (AT RIGHT REAR OF ENGINE COMPT) FRONT PASSENGER ETR (GUS) SQUIB FRONT SAM CONTROL FUSE FUSE 150 FUSE MODULE W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) GRN WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GS, HL+ GS, HL- SB, BF- SB, BF+ GS, HR+ GS, HR- PG, BF- PG, BF+ PG, FA+ PG, FA- CAK, FA CAK, BF HOT AT ALL TIMES HOT W/ INSTRUMENT CLUSTER LEFT WINDOW BAG SQUIB PNK WIRE REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE (RIGHT SIDE OF TRUNK/ CARGO AREA) RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/VIO WIRE RED/YEL WIRE RELAY 1 ENERGIZED RIGHT REAR SIDE BAG SQUIB (IF EQUIPPED) (RIGHT REAR "C" PILLAR) RIGHT WINDOW AIR BAG SQUIB SB, FA- SB, FA+ (+) (-) WB, VR- WB, VR+ SB, HR+ SB, HR- SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT SUPPLEMENTAL RESTRAINT SYSTEM INDICATOR LAMP VIO/BLU WIRE VIO/GRN WIRE VIO/YEL WIRE W/O ECO START/STOP FUNCTION WHT WIRE WHT/BLK WIRE WHT/BRN WIRE WHT/GRN WIRE WHT/VIO WIRE

BLK WIRE BLK/BLU WIRE BLK/RED WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/PNK WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/BLU WIRE BRN/GRY WIRE BRN/ORG WIRE BRN/RED WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DCM DOWNSTREAM OF CATALYTIC CONVERTER (UNDER RIGHT FRONT OF VEHICLE, IN EXHAUST) ENGINE OIL PUMP VALVE EV 1 FRONT SAM CONTROL MODULE W/ FUSE, FUSE FUSE RELAY MODULE (LEFT REAR OF ENGINE COMPT) GRN WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/VIO WIRE GRN/WHT WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/GRN WIRE GRY/PNK WIRE GRY/VIO WIRE HOT AT ALL TIMES HOT W/ CHASSIS CIRCUIT 87 RELAY ENERGIZED HOT W/ CIRCUIT INTAKE MANIFOLD RESONANCE FLAP SWITCH OVER VALVE INTAKE MANIFOLD SELECTOR DRUM SWITCH OVER VALVE IPM LEFT NOX SENSOR LSHK ME-SFI (ME) CONTROL MODULE (LEFT SIDE OF ENGINE) NCA WIRE NWSA 1 NWSE 2 DCM ORG/ WIRE PNK COMPUTER DATA LINES SYSTEM WIRE PNK WIRE PNK/BLU WIRE PNK/GRN WIRE PNK/RED WIRE PNK/WHT WIRE RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/WHT WIRE RELAY ENERGIZED RIGHT NOX SENSOR RIGHT NOX SENSOR CONTROL UNIT (W/ STRATIFIED CHARGE) VIO WIRE VIO/BLU WIRE VIO/BRN WIRE VIO/WHT WIRE WHT/BLK WIRE WHT/BRN WIRE WHT/GRN WIRE WHT/GRY WIRE WHT/VIO WIRE WHT/YEL WIRE YEL/BRN WIRE YEL/GRY WIRE YEL/VIO WIRE ZUE 1 ZUE 4 ZUE 3 ZUE 5 ZUE 6 ZEU 2

AIR CONDITIONING SYSTEM BLK WIRE BLK/BLU WIRE BLK/RED WIRE BLU WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/GRY WIRE BRN/ORG WIRE BRN/RED WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE CAN C H CAN E H CAN I H COMPUTER DATA LINES SYSTEM COOLANT TEMPERATURE WARNING LAMP COOLING FANS SYSTEM CRASH CYLINDER 1 FUEL INJECTION CYLINDER 2 FUEL INJECTION CYLINDER 3 FUEL INJECTION DST EKPR ENGINE CIRCUIT 87 RELAY ENGINE DIAGNOSIS INDICATOR LAMP EXP FRONT SAM CONTROL MODULE FUEL TANK PRESSURE SENSOR (IN FUEL TANK) FUSE FUSE FUSE FUSE GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/WHT WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/GRN WIRE GRY/PNK WIRE GRY/VIO WIRE GRY/WHT WIRE INSTRUMENT CLUSTER ME-SFI (ME) CONTROL MODULE (LEFT SIDE OF ENGINE) ORG/ WIRE PNK/BLU WIRE PNK/GRN WIRE PNK/RED WIRE PNK/WHT WIRE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE VIO WIRE VIO/BLU WIRE VIO/BRN WIRE VIO/GRN WIRE VIO/WHT WIRE W/ ECO START/ STOP FUNCTION W/ FUSE/ RELAY MODULE (LEFT REAR OF ENGINE COMPT) W/ STRATIFIED CHARGE W/O STRATIFIED CHARGE WHT/BLK WIRE WHT/BRN WIRE WHT/GRY WIRE WHT/VIO WIRE WHT/YEL WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRY WIRE

AAV ACCELERATOR PEDAL SENSOR (TOP OF ACCELERATOR PEDAL ASSEMBLY) BLK WIRE BLK/BLU WIRE BLK/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/GRN WIRE BRN/GRY WIRE BRN/RED WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE CAN C L CAN E L CAN I L COMPUTER DATA LINES SYSTEM FRONT ELECTRICAL FUSE PREFUSE BOX (AT RIGHT REAR OF ENGINE COMPT) GRN WIRE GRN/BLK WIRE GRN/GRY WIRE GRN/WHT WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/GRN WIRE GRY/PNK WIRE GRY/WHT WIRE HOT AT ALL TIMES HOT AT ALL TIMES FUSE LPV ME-SFI (ME) CONTROL MODULE (LEFT SIDE OF ENGINE) NCA WIRE OF TRUNK) ORG/ WIRE PNK WIRE PNK/BLU WIRE PNK/GRN WIRE PNK/WHT WIRE REAR SAM CONTROL MODULE W/ FUSE/ RELAY MODULE (RIGHT SIDE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/WHT WIRE STARTING/ CHARGING SYSTEM STR+ TG L TG R VIO WIRE VIO/BLU WIRE VIO/BRN WIRE VIO/GRN WIRE VIO/WHT WIRE VIO/YEL WIRE WHT/BRN WIRE WHT/YEL WIRE YEL/GRY WIRE