Mercedes-Benz A-class W177 (2018-2023) blu Wiring diagrams

AC HOUSING, AIR QUALITY SENSOR BLK/RED WIRE BLU WIRE BLU/BRN WIRE BLU/GRN WIRE BRN WIRE BRN/VIO WIRE CENTRAL AIR DISTRIBUTION POSITION DETECTION MICROSWITCH CENTRAL CONTROL MODULE COOLANT CIRCULATION PUMP ELECTRONIC BLOWER MOTOR EVAPORATOR TEMPERATURE SENSOR GND 26 27 ILLU (+) GND GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/BLK WIRE GRY/GRN WIRE GRY/RED WIRE HAZARD SIG LEFT FOOTWELL VENT AIR OUTLET TEMPERATURE SENSOR LEFT SIDE AIR VENT AIR OUTLET TEMPERATURE SENSOR NCA WIRE RED/BLU WIRE RED/GRN WIRE RED/VIO WIRE REFRIGERANT PRESSURE SENSOR RIGHT FOOTWELL AIR OUTLET TEMPERATURE SENSOR RIGHT SIDE AIR VENT AIR OUTLET TEMPERATURE SENSOR SIG SIG 3 16 CLUTCH (+) SIG KLA STATIONARY HEATER RADIO REMOTE CONTROL RECEIVER TELEPHONE ANTENNA SPLITTER VALVE GND W/O WIRELESS PHONE CHARGING AT FRONT, ANTENNA WHT/BLU WIRE YEL/GRN WIRE

BLK/RED WIRE BLU WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE COMPUTER DATA LINES SYSTEM COOLANT TEMPERATURE SENSOR COOLANT THERMOSTAT HEATING ELEMENT DRIVETRAIN CONTROL UNIT ENGINE COMPARTMENT FUSE, RELAY MODULE ENGINE COMPARTMENT PREFUSE BOX FAN MOTOR (BEHIND RADIATOR) FINE PARTICLE SENSOR FUSE 103 FUSE 118 FUSE 14 FUSE 143 FUSE 166 FUSE 27 FUSE 41 FUSE 53 FUSE 54 GRN WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/BLK WIRE GRY/YEL WIRE HOT AT ALL TIMES HOT W/ HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED ME-SFI (ME) CONTROL UNIT NCA WIRE POWER SUPPLY POTENTIAL DISTRIBUTOR 3 RED WIRE RED/BLU WIRE RED/GRN WIRE RED/VIO WIRE RELAY ENERGIZED SIG SIG GND VEHICLE INTERIOR FUSE, RELAY MODULE YEL/GRN WIRE

BLK/RED WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/GRY WIRE CENTRAL AIR DISTRIBUTION ACTUATOR MOTOR CLIMATE CONTROL OPERATING UNIT FRESH AIR/ RECIRCULATION FLAP ACTUATOR MOTOR GRN WIRE GRN/VIO WIRE GRY/BLK WIRE LEFT BLEND AIR FLAP ACTUATOR NCA WIRE RED WIRE RED/GRN WIRE REFRIGERANT COMPRESSOR REFRIGERANT COMPRESSOR W/ MAGNETIC CLUTCH RIGHT BLEND AIR FLAP ACTUATOR RIGHT BLENDING AIR FLAP ACTUATOR SIG STATIONARY HEATER FUEL PUMP STATIONARY HEATER SWITCHOVER VALVE STATIONARY HEATER UNIT W/ AIR CONDITIONING W/ REFRIGERANT COMPRESSOR MAGNETIC CLUTCH W/O AIR CONDITIONING W/O REFRIGERANT COMPRESSOR MAGNETIC CLUTCH

BLK WIRE BLK/WHT WIRE BLU WIRE BLU/BRN WIRE BLU/RED WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/RED WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE CAN B H CAN B H STERN CAN B L CENTER ENGINE HOOD CONTACT SWITCH CENTRAL CONTROL MODULE CENTRAL LOCKING STATUS DISPLAY COMPUTER DATA LINES SYSTEM DCS DCS (+) DCS GND DRIVER DOOR AMBIANCE ILLUMINATION DRIVER DOOR CENTRAL LOCKING INSIDE DOOR HANDLE SWITCH DRIVER DOOR CONTROL UNIT DRIVER DOOR HANDLE AMBIANCE ILLUMINATION DRIVER DOOR HANDLE ILLUMINATION DRIVER DOOR LOCK DRIVER DOOR POCKET LIGHTING ENGINE COMPARTMENT FUSE, RELAY MODULE FUSE 156 FUSE 21 GRN WIRE GRN/BLU WIRE GRN/RED WIRE GRY/RED WIRE HOT AT ALL TIMES LED LIN LOCK UNLOCK MOT GND/(+) MOT- PNK/BLU WIRE PNK/VIO WIRE PNK/WHT WIRE RED WIRE RED/BLK WIRE RED/GRN WIRE SIG SIG (1) SIG (2) SIG GND TRUNK LID/LIFTGATE EXTERNAL OPERATION BUTTON TRUNK LID/LIFTGATE LOCK TRUNK LID/LIFTGATE UNLOCKING BUTTON VEHICLE INTERIOR FUSE, RELAY MODULE VIO/PNK WIRE W/ INCREASED THEFT PROTECTION WHT/GRN WIRE WHT/VIO WIRE YEL WIRE

ALARM SIREN BLK WIRE BLU WIRE BRN WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/RED WIRE CAN B H CAN B L CAN HMI H CAN HMI L COMPUTER DATA COMPUTER DATA LINES SYSTEM CORNER OF ROOF) DCS (+) DCS GND DRIVER DOOR EXIT, WARNING LAMP FRONT PASSENGER DOOR LOCK FRONT RIGHT - FUSE 129 FUSE 140 FUSE 161 FUSE 163 GRN WIRE GRY/RED WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER CONTROL UNIT LEFT REAR DOOR CENTRAL LOCKING INSIDE DOOR HANDLE SWITCH LEFT REAR DOOR CONTROL UNIT LEFT REAR DOOR HANDLE AMBIANCE ILLUMINATION LEFT REAR DOOR HANDLE ILLUMINATION LEFT REAR DOOR LOCK LEFT REAR DOOR STOWAGE COMPARTMENT ILLUMINATION LIN LINES SYSTEM LOCK UNLOCK MOT GND/(+) OVERHEAD CONTROL PANEL CONTROL UNIT PNK WIRE PNK/BLU WIRE PNK/GRN WIRE PNK/VIO WIRE PNK/WHT WIRE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE SIG GND VEHICLE INTERIOR FUSE, RELAY MODULE VIO WIRE VIO/WHT WIRE VISION PACKAGE W/ INCREASED THEFT PROTECTION W/ LIGHTS, WHEELWELL) WHT/VIO WIRE YEL WIRE YEL/GRN WIRE

BLK WIRE BLU WIRE BRN WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/RED WIRE BRN/WHT WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM DCS DCS GND FRONT PASSENGER DOOR AMBIANCE ILLUMINATION FRONT PASSENGER DOOR CENTRAL LOCKING INSIDE DOOR HANDLE SWITCH FRONT PASSENGER DOOR CONTROL UNIT FRONT PASSENGER DOOR EXIT, WARNING LAMP FRONT PASSENGER DOOR HANDLE AMBIANCE ILLUMINATION FRONT PASSENGER DOOR HANDLE ILLUMINATION FRONT PASSENGER DOOR POCKET LIGHTING FUSE 154 GRN WIRE GRY/RED WIRE HOT AT ALL TIMES LED LIN MOT GND/(+) MOT GND/(+) LOCK UNLOCK PNK WIRE PNK/BLU WIRE PNK/GRN WIRE PNK/VIO WIRE PNK/WHT WIRE RED WIRE RED/BLK WIRE RED/BLU WIRE RIGHT REAR DOOR CENTRAL LOCKING INSIDE DOOR HANDLE SWITCH RIGHT REAR DOOR CONTROL UNIT RIGHT REAR DOOR HANDLE AMBIANCE ILLUMINATION RIGHT REAR DOOR HANDLE ILLUMINATION RIGHT REAR DOOR LOCK RIGHT REAR DOOR STOWAGE COMPARTMENT ILLUMINATION SIG SIG GND VEHICLE INTERIOR FUSE, RELAY MODULE VIO/PNK WIRE W/ INCREASED THEFT PROTECTION WHT/VIO WIRE YEL WIRE

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

ACTIVE BRAKE ASSIST CONTROLLER UNIT (BEHIND RIGHT SIDE OF FRONT BUMPER) BLK WIRE BLK/WHT WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/RED WIRE CAN B L CAN H H CAN H L CAN HMI H CAN HMI L CAN PER H CAN PER L DRIVE UNIT CONTROL UNIT (UNDER TRUNK FLOOR) ELECTRICAL POWER STEERING CONTROL UNIT ELECTRONIC IGNITION SWITCH CONTROL UNIT ELECTRONIC STABILITY PROGRAM CONTROL UNIT FLEX E BM CAN-B H FLEX E BM PNK FLEX E BP PNK FLEX E BP WIRE FLEX-E BM FLEX-E BP FLEX-E BP PNK FLEX-E BM WIRE GRN WIRE GRN/WHT WIRE GRY/WHT WIRE LEFT FRONT LAMP UNIT LEFT OUTER REAR INTEGRATED RADAR SENSOR MONO MULTI-FUNCTION CAMERA (TOP CENTER OF WINDSHIELD) PERIPHERALS CAN (CAN PER) POTENTIAL DISTRIBUTOR ELECTRICAL CONNECTOR PNK FLEX-E BM WIRE PNK FLEX-E BP WIRE PNK WIRE PNK/GRN WIRE RIGHT OUTER REAR INTEGRATED RADAR SENSOR SHORT, LONG-RANGE RADAR SENSOR (IN CENTER OF FRONT BUMPER) STEERING COLUMN MODULE CONTROL UNIT SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT (UNDER FRONT OF CENTER CONSOLE) VIO WIRE VIO/WHT WIRE W/ ACTIVE DISTANCE ASSIST DISTRONIC W/ ACTIVE DISTANCE ASSIST DISTRONIC, COLLISION PREVENTION ASSIST W/ COLLISION PREVENTION ASSIST W/ DISTRONIC DISTANCE-PILOT WHT WIRE

BLK WIRE BLK/ORG WIRE BLU WIRE BRN WIRE BRN/BLK WIRE BRN/GRY WIRE BRN/PNK WIRE BRN/RED WIRE CAN B H CAN B L CAN HMI H CAN HMI L CENTER CONSOLE KEYLESS GO ANTENNA COMPUTER DATA LINES SYSTEM DRIVER DOOR KEYLESS-GO DOOR HANDLE ELECTRONIC IGNITION SWITCH CONTROL UNIT FM 1, AM, CL (ZV), KEYLESS GO ANTENNA AMPLIFIER FRONT PASSENGER DOOR KEYLESS-GO DOOR HANDLE FUSE 132 GRY/BLK WIRE GRY/YEL WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER CONTROL UNIT KAPA LEFT REAR KEYLESS GO DOOR HANDLE LEFT UNDER FLOOR KEYLESS GO ANTENNA LF 1 LF 2 LF MID LOAD COMPARTMENT KEYLESS-GO ANTENNA RED WIRE RED/YEL WIRE RIGHT REAR KEYLESS GO DOOR HANDLE RIGHT UNDER FLOOR KEYLESS GO ANTENNA VEHICLE INTERIOR FUSE, RELAY MODULE VIO WIRE VIO/WHT WIRE WHT WIRE YEL/BRN WIRE YEL/GRN WIRE

AIR CONDITIONING SYSTEM BLU WIRE BRN WIRE BRN/GRY WIRE ENGINE COMPARTMENT FUSE, RELAY MODULE FUSE 166 FUSE 53 GRN/VIO WIRE GRY/RED WIRE HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED HOT W/ CIRCUIT NCA WIRE RED/GRN WIRE RED/GRY WIRE SHD SHIELD SIG STATIONARY HEATER FUEL PUMP STATIONARY HEATER RADIO REMOTE CONTROL RECEIVER STATIONARY HEATER SWITCHOVER VALVE STATIONARY HEATER UNIT TELEPHONE ANTENNA SPLITTER VEHICLE INTERIOR FUSE, RELAY MODULE W/O WIRELESS PHONE CHARGING AT FRONT, ANTENNA