Mercedes-Benz GLC-class Coupe C253 facelift (2019-2023) w/o fuel cell retrofitting Wiring diagrams

BLK WIRE BLK/RED WIRE BLU/BRN WIRE BRN BRN/YEL) WIRE BRN WIRE CAN H H CAN H L CAN HMI H CAN HMI L CENTER STOP LAMP COMPUTER DATA LINES SYSTEM COUPE DRIVER-SIDE FUSE, RELAY MODULE ELECTRIC PARKING BRAKE SWITCH ELECTRONIC STABILITY PROGRAM CONTROL UNIT ENGINE FUSE, RELAY MODULE EXTERIOR LIGHTS SWITCH FUSE 128 FUSE 209 206 FUSE 3 FUSE 305 FUSE 322 GRN WIRE GRN/BRN WIRE GRN/RED WIRE GRN/VIO WIRE GRY/BLK WIRE GRY/BLU WIRE HAZARD LIGHT HAZARD SIG HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED HOT W/ ENGINE COMPARTMENT TERMINAL 15 RELAY ENERGIZED INSTRUMENT CLUSTER LEFT LICENSE PLATE LAMP LIN 1 MULTIPLE FUSE 1 PASSENGER-SIDE A-PILLAR FUSE BOX PNK WIRE PNK/RED WIRE RED WIRE RED/GRN WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE RIGHT LICENSE PLATE LAMP SENS SIG SIG (1) SIG (2) SIG 3 STOP LAMP SWITCH UPPER CONTROL PANEL CONTROL UNIT VIO WIRE VIO/WHT WIRE W/ FUEL CELL RETROFITTING W/O FUEL CELL RETROFITTING WHT WIRE YEL WIRE YEL/WHT WIRE

BLK WIRE BLK/RED WIRE BLU WIRE BLU/BRN WIRE BLU/GRN WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L CAN H H CAN H L CAN HMI H CAN HMI L COMPUTER DATA LINES COMPUTER DATA LINES SYSTEM DRIVER-SIDE FUSE, RELAY MODULE ELECTRIC PARKING BRAKE SWITCH ELECTRONIC STABILITY PROGRAM CONTROL UNIT ENGINE FUSE, RELAY MODULE EXTERIOR LIGHTS SWITCH FLEX-E BM FLEX-E BP FRONT SAM CONTROL UNIT FUSE 128 FUSE 200 FUSE 210 FUSE 322 GRN WIRE GRN/BRN WIRE GRN/RED WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/VIO WIRE GRY/YEL WIRE HAZARD LIGHT COC HAZARD SIG HOT AT ALL TIMES HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED HOT W/ ENGINE COMPARTMENT TERMINAL 15 RELAY ENERGIZED INSTRUMENT CLUSTER LEFT FRONT DOOR CONTROL UNIT (IN LEFT FRONT DOOR) LEFT FRONT LAMP UNIT LEFT OUTSIDE MIRROR LEFT OUTSIDE MIRROR TURN SIGNAL LAMP NCA WIRE PASSENGER-SIDE A-PILLAR FUSE BOX PNK WIRE PNK/RED WIRE RED WIRE RED/BLK WIRE RED/YEL WIRE RIGHT FRONT DOOR CONTROL UNIT (IN RIGHT FRONT DOOR) RIGHT FRONT LAMP UNIT RIGHT OUTSIDE MIRROR RIGHT OUTSIDE MIRROR TURN SIGNAL LAMP SENS SIG SIG (1) SIG (2) SIG 3 SIG 3 PNK SENS (+) WIRE SML STEERING COLUMN MODULE CONTROL UNIT STOP LAMP SWITCH SYSTEM TSI R (+) TSI-L (+) VIO WIRE VIO/WHT WIRE W/O FUEL CELL RETROFITTING YEL WIRE YEL/WHT WIRE

BACKUP LAMPS CIRCUIT BL (+) BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/RED WIRE BLK/VIO WIRE BLK/WHT WIRE BRN WIRE BRN/RED WIRE BRN/YEL) BRN WIRE CAN A H CAN A L CAN B H CAN B L CENTER STOP LAMP COMPUTER DATA LINES SYSTEM COUPE DIAG DRIVER-SIDE FUSE, RELAY MODULE FUSE 209 206 FUSE 3 FUSE 305 FUSE 477 GRN/BLU WIRE GRN/BRN WIRE GRN/ORG WIRE GRN/VIO WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/YEL WIRE HAZARD LIGHT HAZARD SIG HECKR HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED INNER LEFT REAR LAMP UNIT INNER RIGHT REAR LAMP UNIT LEFT LICENSE PLATE LAMP LEFT REAR LAMP UNIT LIN MULTIPLE FUSE 1 PASSENGER-SIDE A-PILLAR FUSE BOX RAIN/LIGHT SENSOR W/ ADDITIONAL FUNCTIONS REAR FUSE, RELAY MODULE REAR SAM CONTROL UNIT RED WIRE RED/GRN WIRE RED/GRY WIRE RED/WHT WIRE RFL (+) HECKD RIGHT LICENSE PLATE LAMP RIGHT REAR LAMP UNIT SIG SML SML (+) DIAG TL (+) TL/PL (+) TOUCHPAD TSI (+) HECKL TSI (+) SIG UPPER CONTROL PANEL CONTROL UNIT W/ FUEL CELL RETROFITTING W/O FUEL CELL RETROFITTING WHT WIRE YEL WIRE YEL/WHT WIRE

BL (+) BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/VIO WIRE BLK/WHT WIRE BRN WIRE BRN/RED WIRE BRN/YEL WIRE BUL (+) CAN A H CAN A L CAN B L CENTER STOP LAMP COMPUTER COMPUTER DATA LINES SYSTEM COUPE DATA LINES DIAG FUSE 476 GRN/BLU WIRE GRN/VIO WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/YEL WIRE HECKR HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED INNER LEFT REAR LAMP UNIT INNER RIGHT REAR LAMP UNIT LEFT LICENSE PLATE LAMP LEFT REAR LAMP UNIT LIN REAR FUSE, RELAY MODULE REAR SAM CONTROL UNIT RED WIRE RED/GRN WIRE RED/GRY WIRE RFL (+) RIGHT LICENSE PLATE LAMP RIGHT REAR LAMP UNIT SIG SIG (+) CAN-B H SIG (+) HECKD SYSTEM TL (+) TL/PL/BL TSI (+) TL/PL/BL TSI (+) HECKL TL/PL/BL/TSI (+) TL/PL/BL/TSI (+) DIAG TOUCHPAD TSI (+) W/ FUEL CELL RETROFITTING W/O FUEL CELL RETROFITTING YEL WIRE YEL/WHT WIRE

BLK WIRE BLK/RED WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L CAN HMI H CAN HMI L COMPUTER DATA LINES SYSTEM DRIVER-SIDE FUSE, RELAY MODULE FLEX-E BM FLEX-E BP FUSE 209 206 FUSE 210 FUSE 3 FUSE 305 FUSE 322 GRN WIRE GRY/BLK WIRE GRY/YEL WIRE HAZARD LIGHT HAZARD SIG HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED INSTRUMENT CLUSTER LEFT FRONT DOOR CONTROL UNIT (IN LEFT FRONT DOOR) LEFT OUTSIDE MIRROR LEFT OUTSIDE MIRROR TURN SIGNAL LAMP LIN MULTIPLE FUSE 1 NCA WIRE PASSENGER-SIDE A-PILLAR FUSE BOX PNK WIRE PNK/RED WIRE RED/BLK WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FRONT DOOR CONTROL UNIT (IN RIGHT FRONT DOOR) RIGHT FRONT LAMP UNIT RIGHT OUTSIDE MIRROR RIGHT OUTSIDE MIRROR TURN SIGNAL LAMP SIG STEERING COLUMN MODULE CONTROL UNIT TSI R (+) UPPER CONTROL PANEL CONTROL UNIT W/ FUEL CELL RETROFITTING W/O FUEL CELL RETROFITTING YEL WIRE YEL/WHT WIRE

BLK WIRE BLK/RED WIRE BLU/BLK WIRE BLU/BRN WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L CAN H H CAN H L COC COMPUTER DATA LINES SYSTEM DRIVER-SIDE FUSE, RELAY MODULE DTRL ELECTRIC PARKING BRAKE SWITCH ELECTRONIC STABILITY PROGRAM CONTROL UNIT ENGINE FUSE, RELAY MODULE EXTERIOR LIGHTS SWITCH FUSE 126 FUSE 128 FUSE 200 GRN WIRE GRN/BRN WIRE GRN/RED WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/YEL WIRE HAZARD LIGHT HAZARD SIG HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED HOT W/ ENGINE COMPARTMENT TERMINAL 15 RELAY ENERGIZED LEFT FRONT LAMP UNIT PNK WIRE PNK/RED WIRE RAIN/LIGHT SENSOR W/ ADDITIONAL FUNCTIONS RED WIRE RED/WHT WIRE SENS SIG SIG (1) SIG (2) SIG 3 STOP LAMP SWITCH TSI R (+) VIO WIRE VIO/WHT WIRE W/O FUEL CELL RETROFITTING YEL WIRE

BATTERY DISCONNECT SWITCH RELAY BLK WIRE BRN WIRE CENTER FUEL CELL COOLING COOLANT PUMP ECO START/STOP FUNCTION ADDITIONAL BATTERY RELAY ELECTRIC COOLANT PUMP ELECTRICAL POWER STEERING CONTROL UNIT ELECTRONIC BLOWER CONTROLLER ELECTRONIC STABILITY PROGRAM CONTROL UNIT FAN MOTOR FRONT SAM CONTROL UNIT FULLY INTEGRATED TRANSMISSION CONTROL UNIT FUSE 1 FUSE 10 FUSE 13 FUSE 2 FUSE 3 FUSE 4 FUSE 5 FUSE 6 FUSE 7 FUSE 8 FUSE 9 LEFT FUEL CELL COOLING COOLANT PUMP N/A NCA WIRE ON-BOARD ELECTRICAL SYSTEM BATTERY POWER ELECTRONICS CONTROL UNIT RED (OR RED/BLU) WIRE RED WIRE RED/BLU WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE REL C (+) REL O (+) REL O GND SPECIAL PURPOSE VEHICLE FUSE BLOCK 1 TERMINAL BLOCK (CIRCUIT 30) TO DRIVER-SIDE FUSE, RELAY MODULE (DIAGRAM 2 OF 9) TO ELECTRONIC IGNITION SWITCH CONTROL UNIT (DIAGRAM 5 OF 9) TO ENGINE FUSE, RELAY MODULE (DIAGRAM 9 OF 9) TO PASSENGER- SIDE A-PILLAR FUSE BOX (DIAGRAM 6 OF 9) TO PASSENGER-SIDE A-PILLAR FUSE BOX (DIAGRAM 7 OF 9) TO REAR FUSE, RELAY MODULE (DIAGRAM 3 OF 9) VOLTAGE DIP LIMITER W/ FUEL CELL RETROFITTING W/O FUEL CELL RETROFITTING

ADAPTIVE DAMPING SYSTEM CONTROL UNIT AIR BODY CONTROL UNIT ALL-WHEEL DRIVE CONTROL UNIT AUDIO/ COMAND DISPLAY BLK WIRE DRIVER SEAT CONTROL UNIT DRIVER'S SEAT LUMBAR SUPPORT ELECTROPNEUMATIC CONTROLLER UNIT DRIVETRAIN CONTROL UNIT ELECTRIC BRAKE CONTROL ELECTRICAL CONNECTOR FROM VEHICLE INTERIOR PREFUSE BOX (DIAGRAM 1 OF 9) FRONT PASSENGER SEAT CONTROL UNIT FRONT PASSENGER SEAT LUMBAR SUPPORT ELECTROPNEUMATIC CONTROLLER UNIT FRONT SEAT HEATER CONTROL UNIT FUSE 1 FUSE 2 FUSE 3 FUSE 301 FUSE 302 FUSE 303 FUSE 304 FUSE 305 FUSE 306 FUSE 307 FUSE 308 FUSE 309 FUSE 310 FUSE 311 FUSE 312 FUSE 313 FUSE 314 FUSE 315 FUSE 316 FUSE 317 FUSE 4 FUSE 5 FUSE 6 HEAD UNIT ME-SFI (ME) CONTROL UNIT MULTIPLE FUSE 1 OVERHEAD CONTROL PANEL CONTROL UNIT PANORAMIC SLIDING SUNROOF CONTROL MODULE RAIN/LIGHT SENSOR W/ ADDITIONAL FUNCTIONS RED WIRE RED/BLU WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FRONT DOOR CONTROL UNIT RIGHT REAR DOOR CONTROL UNIT SHORT, LONG-RANGE RADAR SENSOR SLIDING ROOF CONTROL MODULE STATIONARY HEATER UNIT SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT THEFT DETECTION SYSTEM HORN RELAY TO FUSE 6 (DIAGRAM 6 OF 9) W/ FUEL CELL RETROFITTING W/O FUEL CELL RETROFITTING

ALTERNATING CURRENT CHARGER HIGH-VOLTAGE BATTERY BLK WIRE BRN WIRE DC/AC CONVERTER CONTROL UNIT DRIVER'S SEAT LUMBAR SUPPORT ELECTROPNEUMATIC CONTROLLER UNIT ELECTRONIC DIFFERENTIAL CONTROL UNIT FROM FUSE 472 (DIAGRAM 4 OF 9) FROM REAR FUSE, RELAY MODULE (DIAGRAM 3 OF 9) FROM VEHICLE INTERIOR TERMINAL 15 RELAY (DIAGRAM 3 OF 9) FRONT PASSENGER SEAT LUMBAR SUPPORT ELECTROPNEUMATIC CONTROLLER UNIT FUSE 414 FUSE 416 FUSE 425 FUSE 426 FUSE 428 FUSE 436 FUSE 459 FUSE 460 FUSE 465 FUSE 467 FUSE 470 LEFT FRONT MULTICONTOUR SEAT CONTROL UNIT MPAC U MPAC V N/A ORG/ WIRE ORG/BLK WIRE ORG/BLU WIRE PNK/GRN WIRE PNK/GRY WIRE RED WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FRONT MULTICONTOUR SEAT CONTROL UNIT SENS SENS GND TIRE PRESSURE MONITOR CONTROL UNIT W/ FUEL CELL RETROFITTING W/O FUEL CELL RETROFITTING W/O SEATING COMFORT PACKAGE YEL WIRE

BLK/YEL WIRE BLU WIRE BRN WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/RED WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM CRASH DRIVER AIR BAG SQUIB 1 DRIVER AIR BAG SQUIB 2 DRIVER SEAT BELT BUCKLE SWITCH DRIVER-SIDE FUSE, RELAY MODULE FRONT PASSENGER SEAT BELT BUCKLE SWITCH FRONT SAM CONTROL UNIT FUSE 200 FUSE 312 FUSE 316 GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/YEL WIRE GRY/GRN WIRE HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED NCA WIRE PASSENGER-SIDE A-PILLAR FUSE BOX PNK/GRN WIRE PNK/RED WIRE RED WIRE RED/WHT WIRE RIGHT REAR DOOR PRESSURE SENSOR RIGHT REAR EMERGENCY TENSIONING RETRACTOR SQUIB RIGHT SIDE BAG SENSOR STEERING COLUMN MODULE CONTROL UNIT VIO WIRE VIO/YEL WIRE W/ FUEL CELL RETROFITTING W/O FUEL CELL RETROFITTING WHT/BLK WIRE WHT/BLU WIRE WHT/GRY WIRE