Mercedes-Benz C-class W205/S205/C205/A205 facelift (2018-2021) red/blk Wiring diagrams

BLU WIRE BLU/WHT WIRE BRN WIRE CAN HMI H CAN HMI L CAN LR H CAN LR L COMPUTER DATA LINES SYSTEM DRIVER-SIDE FUSE, RELAY MODULE ELECTRONIC IGNITION SWITCH CONTROL UNIT FLEXRAY E BP PNK FLEXRAY E BM WIRE FULLY INTEGRATED TRANSMISSION CONTROL UNIT FUSE 10 FUSE 209 FUSE 210 GRN WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER NCA WIRE P NOT RED WIRE RED/BLK WIRE RED/WHT WIRE SIG STEERING COLUMN MODULE CONTROL UNIT STEERING WHEEL DOWNSHIFT BUTTON STEERING WHEEL ELECTRONICS STEERING WHEEL UPSHIFT BUTTON UPPER CONTROL PANEL CONTROL UNIT VEHICLE INTERIOR PREFUSE BOX YEL WIRE YEL/WHT WIRE

2 3 A M K KK 6 7 TMP VD V 6 7 WAPU+ AC HOUSING, AFV BLK WIRE BLOWER MOTOR BLOWER REGULATOR BOOSTER BLOWER ELECTRONIC BLOWER REGULATOR BRN WIRE BRN/BLU WIRE BRN/RED WIRE BRN/VIO WIRE BRN/WHT WIRE CAN B H CAN B L CENTRAL AIR DISTRIBUTION POSITION DETECTION MICROSWITCH CLIMATE CONTROL UNIT (RIGHT SIDE OF DASH) COMPUTER DATA LINES SYSTEM DRIVER-SIDE FUSE, RELAY MODULE EVAPORATOR TEMPERATURE SENSOR FUSE 207 FUSE 208 FUSE 3 FUSE 415 FUSE 5 GRN WIRE GRN/BLU WIRE GRN/VIO WIRE GRN/WHT WIRE GRY/RED WIRE HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED LEFT FOOTWELL AIR OUTLET TEMPERATURE SENSOR NCA WIRE PASSENGER- SIDE A-PILLAR BOX PERFUME ATOMIZER GENERATOR PNK WIRE REAR CENTER AIR VENT AIR OUTLET TEMPERATURE SENSOR REAR FUSE, RELAY MODULE RED WIRE RED/BLK WIRE RED/GRN WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FOOTWELL AIR OUTLET TEMPERATURE SENSOR SIG STATIONARY HEATER UNIT SW POS TEMP TMP FR L TMP FR R VEHICLE INTERIOR PREFUSE BOX VIO/YEL WIRE W/ AIR BALANCE PACKAGE WHT/BLU WIRE YEL WIRE YEL/VIO WIRE

BLK/YEL WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/GRN WIRE BRN/RED WIRE CAN B H CAN B L CAN C H CAN C L CAN HMI H CAN HMI L CLIMATE CONTROL UNIT COMPUTER DATA LINES SYSTEM COOLANT CIRCULATION PUMP COOLANT LEVEL SWITCH COOLANT PUMP RELAY COOLANT TEMPERATURE GAUGE COOLANT TEMPERATURE SENSOR COOLANT TEMPERATURE WARNING LAMP COOLANT THERMOSTAT HEATING ELEMENT DRIVER-SIDE FUSE, RELAY MODULE DRIVETRAIN CONTROL UNIT ELECTRIC COOLANT PUMP ENGINE COMPARTMENT PREFUSE BOX ENGINE FUSE, RELAY MODULE FAN MOTOR (BEHIND RADIATOR) FRONT SAM CONTROL UNIT FUSE 101 FUSE 107 FUSE 120 FUSE 207 FUSE 315 FUSE 5 FUSE 7 GRN WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/YEL WIRE HOT W/ HOT W/ BATTERY DISCONNECT (LEFT REAR OF ENGINE COMPT) SWITCH RELAY ENERGIZED HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED HOT W/ CPC RELAY ENERGIZED INSTRUMENT CLUSTER INTERIOR TEMPERATURE SENSOR W/ INTEGRATED FAN LEFT VEHICLE-END, ENGINE-END BUSBAR STUD 3 ME-SFI (ME) CONTROL UNIT OVERHEAD CONTROL PANEL CONTROL UNIT PASSENGER-SIDE A-PILLAR FUSE BOX POWER SUPPLY POTENTIAL DISTRIBUTOR 3 PURGE CONTROL VALVE PWR-1 RBA-1 RED WIRE RED/BLK WIRE RED/GRN WIRE RED/WHT WIRE REG RELAY ENERGIZED SIG SIG GND WAPU+ WHT/BLU WIRE YEL WIRE YEL/BRN WIRE YEL/WHT WIRE

BRN WIRE CAN HMI H CAN HMI L COMPUTER DATA LINES SYSTEM FUSE 1 FUSE 3 FUSE 411 FUSE 454 HOT AT ALL TIMES HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED LEFT FRONT REVERSIBLE EMERGENCY TENSIONING RETRACTOR MULTIPLE FUSE 2 PASSENGER-SIDE A-PILLAR FUSE BOX REAR FUSE, RELAY MODULE RED WIRE RED/BLK WIRE RED/GRN WIRE RIGHT FRONT REVERSIBLE EMERGENCY TENSIONING RETRACTOR YEL WIRE YEL/WHT WIRE

BRN WIRE CAN LR H CAN LR L COMPUTER DATA LINES SYSTEM DRIVER-SIDE FUSE, RELAY MODULE FLEX-E BM FLEX-E BP FUSE 210 GRN WIRE HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED NCA WIRE PNK WIRE RED/BLK WIRE SENS GND SIG STEERING COLUMN MODULE CONTROL UNIT STEERING WHEEL ELECTRONICS STEERING WHEEL HEATER (IF EQUIPPED) TEMP

BRN WIRE BRN/RED WIRE CAN B H CAN B L CAN LR H CAN LR L COMPUTER DATA LINES SYSTEM DRIVER-SIDE FUSE, RELAY MODULE ELECTRONIC IGNITION SWITCH CONTROL UNIT FLEX-E BP PNK FLEX-E BM WIRE FRONT SAM CONTROL UNIT FUSE 200 FUSE 210 GRN WIRE HORNS CONTACT PLATE HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED LEFT FANFARE HORN NCA WIRE RED WIRE RED/BLK WIRE RIGHT FANFARE HORN SIG STEERING COLUMN MODULE CONTROL UNIT STEERING WHEEL ELECTRONICS YEL WIRE

BLU WIRE BRN WIRE BRN/WHT WIRE DRIVER SEAT LUMBAR SUPPORT ADJUSTMENT CONTROL UNIT DRIVER SEAT LUMBAR SUPPORT ADJUSTMENT SWITCH DRIVER SEAT LUMBAR SUPPORT PNEUMATIC PUMP FRONT PASSENGER SEAT LUMBAR SUPPORT ADJUSTMENT CONTROL UNIT FRONT PASSENGER SEAT LUMBAR SUPPORT ADJUSTMENT SWITCH FRONT PASSENGER SEAT LUMBAR SUPPORT PNEUMATIC PUMP FUSE 425 FUSE 426 HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED REAR FUSE, RELAY MODULE RED/BLK WIRE RED/WHT WIRE SIG WHT WIRE

AB 1 (+) AB 1 GND AB 2 (+) AB 2 GND BLK/YEL WIRE BLU WIRE BRN WIRE CAN LR H CAN LR L COMPUTER DATA LINES SYSTEM DRIVER-SIDE FUSE, RELAY MODULE FLEX-E BM FLEX-E BP FUSE 210 FUSE 6 GRN WIRE HEAD UNIT MULTI-FUNCTION STEERING WHEEL BUTTON GROUP HORNS CONTACT PLATE HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED INSTRUMENT CLUSTER MULTI-FUNCTION STEERING WHEEL BUTTON GROUP LIN 1 NCA WIRE PASSENGER-SIDE A-PILLAR FUSE BOX PNK WIRE RED WIRE RED/BLK WIRE RES+ SENS GND SIG SIG GND SPI CLK SPI MOSI STEERING COLUMN MODULE CONTROL UNIT (TOP OF STEERING COLUMN) STEERING WHEEL DOWNSHIFT BUTTON STEERING WHEEL ELECTRONICS STEERING WHEEL HEATER STEERING WHEEL UPSHIFT BUTTON SUPPLEMENTAL RESTRAINTS SYSTEM TEMP VIO/YEL WIRE

AAG BL (+) BLK WIRE BLK/GRN WIRE BLK/RED WIRE BLK/WHT WIRE BRN WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE BUL (+) CAN B H CAN B L COMPUTER DATA LINES SYSTEM COUPE F LIGHT GND FUSE 444 FUSE 445 FUSE 446 FUSE 447 FUSE 448 GRN WIRE GRN/WHT WIRE GRY WIRE GRY/BLK WIRE GRY/RED WIRE GRY/YEL WIRE HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED ILLU ILLU GND MOT GND/(+) PNK WIRE PNK/RED WIRE REAR FUSE, RELAY MODULE REAR SAM CONTROL UNIT RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE RFL (+) SENS SENS (+) SENS GND SIG (1) SIG (2) TL L (+) TL-R (+) TRAILER HITCH RELEASE TRAILER HITCH RELEASE SWITCH TRAILER RECOGNITION CONTROL UNIT TRAILER SOCKET (UNDER CENTER OF REAR BUMPER) TSI R (+) TSI-L (+) WHT WIRE YEL WIRE

BLK/BLU WIRE BLU/WHT WIRE BRN WIRE BRN/RED WIRE BRN/YEL WIRE CAN B H CAN B L CAN HMI H CAN HMI L COMPUTER DATA LINES SYSTEM DRIVER-SIDE FUSE, RELAY MODULE ENGINE COMPARTMENT PREFUSE BOX ENGINE FUSE, RELAY MODULE FRONT SAM CONTROL UNIT FUSE 106 FUSE 112 FUSE 200 FUSE 3 FUSE 5 HOT AT ALL TIMES INSTRUMENT CLUSTER MULTIPLE FUSE 1 N/A PASSENGER-SIDE A-PILLAR FUSE BOX RAIN/LIGHT SENSOR W/ ADDITIONAL FUNCTIONS RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE SIG WINDSHIELD WASHER SYSTEM PUMP WINDSHIELD WASHER SYSTEM WASHER FLUID LEVEL SWITCH WIPER MOTOR WIPER PARK POSITION HEATER RELAY YEL WIRE YEL/WHT WIRE