BMW 3 series G20/G21 facelift (2022-2024) independent auxiliary heater Wiring diagrams

AIR CONDITIONING AIR DISTRIBUTION MICROSWITCH AUXILIARY WATER PUMP BASIC BLK WIRE BLK/VIO WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BODY DOMAIN CONTROLLER BRN WIRE BRN/BLK WIRE COMPUTER DATA LINES SYSTEM COOLANT SHUTOFF VALVE ENGINE COMPARTMENT POWER DISTRIBUTION BOX FRONT ELECTRIC AUXILIARY HEATER FUSE 3 FUSE 402 GRN WIRE GRY/RED WIRE HOT AT ALL TIMES HOT W/ BI-STABLE RELAY ENERGIZED INDEPENDENT AUXILIARY HEATER NCA WIRE RED WIRE RED/BLU WIRE RED/GRN WIRE REFRIGERANT PRESSURE SENSOR RIGHT FRONT VENTILATION GRILLE VIO WIRE VIO/GRN WIRE WHT WIRE WHT/BRN WIRE WHT/GRN WIRE YEL WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRN WIRE

ACTIVE SOUND DESIGN AUXILIARY HEATER COOLANT CHANGEOVER VALVE AUXILIARY HEATER FUEL METERING PUMP AUXILIARY WATER PUMP BLK WIRE BOOSTER BRN WIRE CAR SHARING MODULE CD DRIVE COUPE ELECTRIC AUXILIARY HEATER COOLANT CHANGEOVER VALVE ELECTRIC VACUUM PUMP EXCEPT 3.0L TURBO FANFARE HORN BUTTON HEAD UNIT HEAD UNIT BASIC HEAD UNIT HIGH, MID HIFI AMPLIFIER IGNITION COIL CYLINDER 1 IGNITION COIL CYLINDER 2 IGNITION COIL CYLINDER 3 IGNITION COIL CYLINDER 4 INDEPENDENT AUXILIARY HEATER LEFT HEADLIGHT LEFT REVERSIBLE ELECTROMOTIVE ELECTRICALLY MOTORIZED REEL LEFT SHIFT PADDLE LEFT-HAND MULTI-FUNCTION STEERING COLUMN SWITCH CLUSTER NCA WIRE PREPARING THE NFC READER REAR WINDOW DEFOGGER RECEIVER AUDIO MODULE RIGHT REVERSIBLE ELECTROMOTIVE ELECTRICALLY MOTORIZED REEL RIGHT SHIFT PADDLE STEERING COLUMN SWITCH CLUSTER TELEMATIC COMMUNICATION BOX SHIELD USB CHARGING SOCKET 2 USB CHARGING SOCKET 3 USB- HUB WIRELESS CHARGING SHELF ANTENNA AMPLIFIER WIRELESS CHARGING STORAGE YEL WIRE

AUTOMATIC A/C CIRCUIT AUXILIARY HEATER COOLANT CHANGEOVER VALVE AUXILIARY HEATER FUEL METERING PUMP AUXILIARY HEATER RECIRCULATING PUMP BLK WIRE BLK/RED WIRE BLK/YEL WIRE BRN WIRE FUSE 54 HOT W/ INDEPENDENT AUXILIARY HEATER RED WIRE RED/VIO WIRE RELAY ENERGIZED RIGHT FRONT POWER DISTRIBUTION BOX WHT/BRN WIRE YEL WIRE YEL/BRN WIRE

AUXILIARY CONTROL UNIT AUXILIARY CONTROL UNIT FOR INTELLIGENT POWER DISTRIBUTION BLK/RED WIRE BLU/VIO WIRE BLU/WHT WIRE BRN WIRE CAR SHARING MODULE CD DRIVE CENTER CONSOLE CONTROL DISPLAY GROUP DRIVER CAMERA SYSTEM DRIVER OUTSIDE DOOR HANDLE ELECTRONICS DRIVER SEAT MODULE DRIVER'S SEAT HEATING ELECTRONICS ELECTRICAL STEERING COLUMN ADJUSTMENT ELECTROCHROMIC INTERIOR MIRROR ELECTRONIC TOLL TAG CONNECTOR ELECTRONIC TRANSMISSION CONTROL FROM ELECTRIC FAN CUT-OFF RELAY (DIAGRAM 5 OF 8) FROM FUSE 107 (DIAGRAM 2 OF 8) FROM FUSE BOX (DIAGRAM 2 OF 8) FRONT PASSENGER SEAT HEATING ELECTRONICS FRONT PASSENGER SEAT MODULE FUSE 113 FUSE 29 FUSE 30 FUSE 32 FUSE 33 FUSE 34 FUSE 35 FUSE 37 FUSE 38 FUSE 46 FUSE 48 FUSE 49 FUSE 51 FUSE 52 FUSE 53 FUSE 54 FUSE 55 FUSE 56 FUSE 57 FUSE 59 FUSE 63 GRN/BLU WIRE INDEPENDENT AUXILIARY HEATER INSTRUMENT CLUSTER (KOMBI) INSTRUMENT PANEL LATE PRODUCTION LEFT FRONT POWER DISTRIBUTION BOX LIN POWER DISTRIBUTION BOX NCA WIRE PASSENGER'S SIDE SEAT ADJUSTMENT SWITCH BLOCK PREPARING CONNECTOR ELECTRONIC TOLL TAG PREPARING THE NFC READER REAR POWER DISTRIBUTION BOX RED WIRE RED) RED/YEL WIRE RED/BLK WIRE RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE STEERING COLUMN SWITCH CLUSTER TO AUXILIARY BATTERY (DIAGRAM 1 OF 8) TO FUSE 118 (DIAGRAM 2 OF 8) TO FUSE 28 (DIAGRAM 2 OF 8) TO FUSE 60 (DIAGRAM 4 OF 8) TRAILER BRAKE SYSTEM PLUG CONNECTION TRANSFER BOX VERTICAL DYNAMICS PLATFORM W/ SEAT MODULE W/O SEAT MODULE YEL WIRE YEL/BLU WIRE YEL/BRN WIRE