Mercedes-Benz A-class W177 (2018-2023) head unit/ instrument cluster control unit Wiring diagrams

BLU WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L CAN-D H CAN-D L CARSHARING CONTROL UNIT DIAGNOSTIC CONNECTOR DRIVER MULTICONTOUR SEAT CONTROL UNIT DRIVER SEAT CONTROL UNIT (UNDER DRIVER'S SEAT) ELECTRONIC IGNITION SWITCH CONTROL UNIT ETH (-) ETHERNET FUSE 109 GRN WIRE GRY WIRE GRY/WHT WIRE HEAD UNIT (LOWER LEFT END OF DASH) HEAD UNIT/ INSTRUMENT CLUSTER CONTROL UNIT HERMES CONTROL UNIT HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED INSTRUMENT CLUSTER CONTROL UNIT PNK WIRE RED WIRE VEHICLE INTERIOR FUSE, RELAY MODULE W/ LEFT/RIGHT FRONT MULTICONTOUR SEATS W/O LEFT/RIGHT FRONT MULTICONTOUR SEATS WAKE-UP WHT WIRE WHT/BLK WIRE

BACKUP CAMERA CONTROL UNIT BRN WIRE CENTER CONSOLE CUP HOLDER AMBIANCE ILLUMINATION DIAGNOSTIC CONNECTOR DRIVER SEAT HEAD RESTRAINT AMBIANCE ILLUMINATION DRIVER-SIDE AIR VENT AMBIANCE ILLUMINATION ELECTRIC STEERING LOCK CONTROL UNIT FRONT PASSENGER SIDE AIR VENT AMBIANCE ILLUMINATION HEAD UNIT HEAD UNIT/ INSTRUMENT CLUSTER CONTROL UNIT HEAD UNIT/ INSTRUMENT CLUSTER DISPLAY CLUSTER HEAD-UP DISPLAY HERMES CONTROL UNIT LEFT CENTER CONSOLE AMBIANCE ILLUMINATION LEFT FRONT FOOTWELL AMBIANCE ILLUMINATION LEFT FRONT FOOTWELL LAMP LEFT REAR FOOTWELL AMBIANCE ILLUMINATION LEFT REAR SEAT HEAD RESTRAINT AMBIANCE ILLUMINATION LEFT REAR SEAT HEAD RESTRAINT ILLUMINATION LOWER DRIVER-SIDE INSTRUMENT PANEL AMBIANCE ILLUMINATION LOWER PASSENGER-SIDE INSTRUMENT PANEL AMBIANCE ILLUMINATION NCA WIRE RIGHT CENTER CONSOLE AMBIANCE ILLUMINATION START/STOP BUTTON UPPER DRIVER-SIDE INSTRUMENT PANEL AMBIANCE ILLUMINATION UPPER PASSENGER-SIDE INSTRUMENT PANEL AMBIANCE ILLUMINATION USER INTERFACE CAN (CAN HMI) POTENTIAL DISTRIBUTOR W/ SEAT MODEL VARIANT 3 W/ STYLE PACKAGE W/O AMBIANCE ILLUMINATION W/O SEAT MODEL VARIANT 3

BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/RED WIRE BRN WIRE BRN/BLU WIRE BRN/RED WIRE CAN B H CAN B L CENTER LEFT FRONT PARKING SYSTEM DISTANCE SENSOR CENTER RIGHT FRONT PARKING SYSTEM DISTANCE SENSOR CENTRAL CONTROL MODULE COMPUTER DATA LINES SYSTEM DISP/RVC HEAD UNIT/ INSTRUMENT CLUSTER CONTROL UNIT INNER LEFT FRONT PARKING SYSTEM DISTANCE SENSOR INNER RIGHT FRONT PARKING SYSTEM DISTANCE SENSOR MOT GND/(+) NCA WIRE OUTER LEFT FRONT PARKING SYSTEM DISTANCE SENSOR OUTER RIGHT FRONT PARKING SYSTEM DISTANCE SENSOR PARKING SYSTEM SPEAKER REAR CAMERA COVER MOTOR RED WIRE SHIELD SIG STERN WHT/RED WIRE WHT/YEL WIRE YEL/RED WIRE YEL/VIO WIRE YEL/WHT WIRE

BACKUP CAMERA CONTROL UNIT CENTRAL CONTROL MODULE DRIVER DOOR CONTROL UNIT FROM FUSE 149 (DIAGRAM 5 OF 7) FRONT CENTER CONSOLE USB CONNECTOR FRONT PASSENGER DOOR CONTROL UNIT FUEL PUMP CONTROL UNIT FUSE 150 FUSE 152 FUSE 154 FUSE 156 FUSE 157 FUSE 158 FUSE 159 FUSE 160 FUSE 161 FUSE 162 FUSE 163 FUSE 164 FUSE 165 FUSE 167 FUSE 168 FUSE 169 FUSE 170 FUSE 171 HAND MOTION SENSOR HEAD UNIT HEAD UNIT/ INSTRUMENT CLUSTER CONTROL UNIT LEFT REAR DOOR CONTROL UNIT MONO MULTI-FUNCTION CAMERA MULTIMEDIA CONNECTION UNIT N/A NCA WIRE PARKING SYSTEM CONTROL UNIT RAIN/LIGHT SENSOR W/ ADDITIONAL FUNCTIONS REAR SWITCHING MODULE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE RIGHT REAR DOOR CONTROL UNIT STEERING COLUMN MODULE CONTROL UNIT STEREO MULTI-FUNCTION CAMERA TIRE PRESSURE MONITOR CONTROL UNIT TO ELECTRIC STEERING LOCK CONTROL UNIT (DIAGRAM 7 OF 7) W/ DISTRONIC DISTANCE-PILOT W/ TIRE PRESSURE MONITOR W/ WIRELESS MOBILE PHONE CHARGING W/O ACTIVE PARKING ASSIST W/ PARKTRONIC W/O ACTIVE PARKING ASSIST, PARKTRONIC W/O DISTRONIC DISTANCE-PILOT W/O TIRE PRESSURE MONITOR W/O WIRELESS MOBILE PHONE CHARGING

BACKUP CAMERA CONTROL UNIT (CENTER OF LIFTGATE) BLU/BLK WIRE BLU/GRN WIRE BLU/GRY WIRE BRN WIRE BRN/RED WIRE CAN B H STERN CAN B L CAN HMI H CAN HMI L CENTRAL CONTROL MODULE COMPUTER DATA LINES SYSTEM ENGINE COMPARTMENT FUSE, RELAY MODULE FUSE 171 FUSE 21 HEAD UNIT HEAD UNIT/ INSTRUMENT CLUSTER CONTROL UNIT HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED MOT GND/(+) NCA WIRE REAR CAMERA COVER MOTOR RED WIRE RED/WHT WIRE SHIELD SHIELD DISP/RVC SHIELD RVC SIG VEHICLE INTERIOR FUSE, RELAY MODULE VIO WIRE VIO/WHT WIRE W/ CONNECT 20 W/ CONNECT 5

BLK WIRE BLK/BLU WIRE BLK/YEL WIRE BLU WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/VIO WIRE BRN/YEL WIRE DRIVER ETR (GUS) SQUIB DRIVER KNEE BAG SQUIB FRONT PASSENGER AIR BAG BLEED VALVE SQUIB FRONT PASSENGER AIR BAG SQUIB 1 FRONT PASSENGER AIR BAG SQUIB 2 FRONT PASSENGER SEAT OCCUPIED RECOGNITION GRN WIRE GRN/YEL WIRE GRY WIRE GRY/YEL WIRE HEAD UNIT/ INSTRUMENT CLUSTER CONTROL UNIT HERMES CONTROL UNIT NCA WIRE PNK/BLK WIRE PNK/YEL WIRE RED/BLU WIRE SIG VIO WIRE VIO/YEL WIRE WEIGHT SENSING SYSTEM (WSS) CONTROL UNIT WHT/VIO WIRE