Wiring diagrams for BMW 3 series
Access to the online wiring database BMW 3 series G20/G21 (2018-2023)
Power distribution circuit (1 of 8)
Power distribution circuit (1 of 8)
Body control modules circuit (1 of 3)
Body control modules circuit (1 of 3)
Courtesy lamps circuit (1 of 4)
Courtesy lamps circuit (1 of 4)
Trunk & fuel door release circuit (1 of 2)
Trunk & fuel door release circuit (1 of 2)
Exterior lamps circuit (1 of 4)
Exterior lamps circuit (1 of 4)
Headlights circuit (1 of 2)
Headlights circuit (1 of 2)
Driver"s memory seat circuit (1 of 2)
Driver"s memory seat circuit (1 of 2)
Passenger"s memory seat circuit (1 of 2)
Passenger"s memory seat circuit (1 of 2)
Supplemental restraints circuit (1 of 4)
Supplemental restraints circuit (1 of 4)
Navigation circuit, base w/ receiver audio module (1 of 6)
Navigation circuit, base w/ receiver audio module (1 of 6)

Wiring Diagrams for BMW 3 series G20/G21 (2018-2023)

  • Description:
    Engines: 2.0L TURBO
  • Systems: 182 Components: 1151
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AUTOMATIC AIR RECIRCULATION CONTROL SENSOR BOOST PRESSURE SENSOR CENTER PEDESTRIAN PROTECTION SENSOR CHARGE AIR TEMPERATURE/ INTAKE MANIFOLD PRESSURE SENSOR CONTACT-FREE TAILGATE OPENING LOWER SENSOR CONTACT-FREE TAILGATE OPENING UPPER SENSOR COOLANT LEVEL SENSOR COOLANT TEMPERATURE SENSOR CRANKCASE MANAGEMENT SENSOR CRANKCASE TEMPERATURE SENSOR CRANKSHAFT SENSOR DRIVER SEAT POSITION SENSOR ENGINE OIL PRESSURE SENSOR EVAPORATOR TEMPERATURE SENSOR EXHAUST CAMSHAFT SENSOR EXHAUST GAS PRESSURE SENSOR GASOLINE PARTICULATE FILTER FRONT PASSENGER SEAT OCCUPANCY DETECTION SEAT CUSHION HEATER/SENSOR FRONT PASSENGER SEAT OCCUPANCY DETECTION SEAT CUSHION HEATING/SENSOR FRONT PASSENGER SEAT POSITION SENSOR FRONT PASSENGER'S SEAT POSITION SENSOR FRONT RADAR SENSOR FUEL LEVEL SENSOR FUEL LEVEL SENSOR 2 GEAR SENSOR GEARBOX OIL TEMPERATURE SENSOR HALL EFFECT SENSOR HIGH BEAM ASSISTANT SENSOR, CONTROL INTAKE AIR TEMPERATURE SENSOR INTAKE CAMSHAFT SENSOR INTELLIGENT BATTERY SENSOR KNOCK SENSOR KNOCK SENSOR #2 LEFT "B" PILLAR AIR BAG SENSOR LEFT FOOTWELL TEMPERATURE SENSOR LEFT FRONT AIR BAG SENSOR LEFT FRONT BRAKE PAD WEAR SENSOR LEFT FRONT CENTER ULTRASONIC SENSOR LEFT FRONT DOOR AIR BAG SENSOR LEFT FRONT OUTER ULTRASONIC SENSOR LEFT FRONT RIDE HEIGHT SENSOR LEFT FRONT SIDE NEAR RANGE RADAR SENSOR LEFT FRONT SIDE PARKING MANEUVERING ASSISTANT ULTRASONIC SENSOR LEFT FRONT VENTILATION TEMPERATURE SENSOR LEFT FRONT VERTICAL-ACCELERATION SENSOR LEFT FRONT WHEEL RPM SENSOR LEFT PEDESTRIAN PROTECTION SENSOR LEFT REAR CENTER ULTRASONIC SENSOR LEFT REAR NEAR RANGE RADAR SENSOR LEFT REAR OUTER ULTRASONIC SENSOR LEFT REAR RIDE HEIGHT SENSOR LEFT REAR ULTRASONIC SENSOR LEFT REAR WHEEL RPM SENSOR LONG- DISTANCE RANGE FRONT RADAR SENSOR HEATING LONG-DISTANCE RANGE FRONT RADAR SENSOR MEMORY FUNCTION HALL SENSOR OIL LEVEL SENSOR OUTSIDE TEMPERATURE SENSOR OXYGEN SENSOR AFTER CATALYTIC CONVERTER OXYGEN SENSOR BEFORE CATALYTIC CONVERTER POSITION SENSOR POWER TAILGATE ACOUSTIC SENSOR RADIATOR OUTLET TEMPERATURE SENSOR RAIL PRESSURE SENSOR RAIN/LIGHT/ SOLAR CONDENSATION SENSOR RAIN/LIGHT/SOLAR CONDENSATION SENSOR REAR SEAT FOOTWELL TEMPERATURE SENSOR REAR SEAT VENTILATION TEMPERATURE SENSOR REFRIGERANT PRESSURE SENSOR RIGHT "B" PILLAR AIR BAG SENSOR RIGHT FOOTWELL TEMPERATURE SENSOR RIGHT FRONT AIR BAG SENSOR RIGHT FRONT CENTER ULTRASONIC SENSOR RIGHT FRONT DOOR AIR BAG SENSOR RIGHT FRONT NEAR RANGE SIDE RADAR SENSOR RIGHT FRONT OUTER ULTRASONIC SENSOR RIGHT FRONT SIDE NEAR RANGE RADAR SENSOR RIGHT FRONT SIDE PARKING MANEUVERING ASSISTANT ULTRASONIC SENSOR RIGHT FRONT VENTILATION TEMPERATURE SENSOR RIGHT FRONT VERTICAL-ACCELERATION SENSOR RIGHT FRONT WHEEL RPM SENSOR RIGHT PEDESTRIAN PROTECTION SENSOR RIGHT REAR BRAKE PAD WEAR SENSOR RIGHT REAR CENTER ULTRASONIC SENSOR RIGHT REAR NEAR RANGE RADAR SENSOR RIGHT REAR OUTER ULTRASONIC SENSOR RIGHT REAR ULTRASONIC SENSOR RIGHT REAR WHEEL RPM SENSOR ROTOR POSITION SENSOR SIREN W/ TILT ALARM SENSOR STEERING TORQUE SENSOR VENTURI NOZZLE PRESSURE SENSOR WASHER FLUID LEVEL SENSOR

2.0L TURBO 3.0L TURBO (OR ACCELERATOR PEDAL MODULE ACCENT LIGHT ACTIVE BODYWORKS SYSTEM ACTIVE SOUND DESIGN ADJUSTMENT DRIVE AIR CONDITIONING AIR CONDITIONING COMPRESSOR AIR CONDITIONING SYSTEM AIR DISTRIBUTION MICROSWITCH ANTI SLIP RAILS CONTROL ELECTRONICS ANTI-THEFT ALARM SYSTEM LED ANTI-THEFT SYSTEM ANTI-THEFT, TRUNK, TAILGATE, FUEL DOORS SYSTEMS AUDIO CONTROL PANEL AUTOMATIC A/C CIRCUIT AUTOMATIC REAR AIR CONDITIONING OPERATING FACILITY BACKUP LAMPS CIRCUIT BEHIND RIGHT FRONT CORNER OF FRONT BUMPER) BODY DOMAIN CONTROLLER BOTTOM RADIATOR BLIND DRIVE BRAKE LIGHT/ TURN SIGNAL CAPACITOR BOX CAR SHARING MODULE CD DRIVE CENTER CONSOLE CONTROL CENTER CONSOLE CONTROL CENTER CENTER CONSOLE CONTROL PANEL CENTER STACK LIGHTING CENTRAL INFORMATION DISPLAY CHARGING CIRCUIT CLUTCH MODULE COMPUTER DATA COMPUTER DATA LINES COMPUTER DATA LINES SYSTEM CONTACT FREE TAILGATE OPENING EVALUATION ELECTRONICS CONTACT FREE TAILGATE OPERATING EVALUATION ELECTRONICS CONVENIENCE CHARGING ELECTRONICS COOLING FANS SYSTEM CORNERING LIGHT CRASH SAFETY MODULE DASHBOARD LIGHTING DASHBOARD LIGHTING 2 DASHBOARD LIGHTING 3 DEFOGGER SYSTEM DOOR LOCKS SYSTEM DOOR LOCKS, ANTI-THEFT SYSTEMS DRIVER OUTSIDE DOOR HANDLE ELECTRONIC DRIVER OUTSIDE DOOR HANDLE ELECTRONICS DRIVER RETRACTOR TENSIONER DRIVER SEAT MODULE DRIVER VEHICLE EXTERIOR MIRROR DRIVER'S AIR BAG GAS GENERATORS DRIVER'S DOOR ENTRY LIGHTING DRIVER'S DOOR INSIDE DOOR HANDLE LIGHT DRIVER'S DOOR INSIDE HANDLE LIGHT DRIVER'S DOOR POCKET LIGHTING DRIVER'S DOOR POWER WINDOW DRIVE W/ CONTROL ELECTRONICS DRIVER'S SEAT BACKREST ANGLE ADJUSTMENT DRIVE DRIVER'S SEAT BELT BUCKLE CONTACT DRIVER'S SEAT HEADREST HEIGHT ADJUSTMENT DRIVE DRIVER'S SEAT MODULE DRIVER'S SIDE REAR POWER WINDOW DRIVE W/ CONTROL ELECTRONIC DRIVER'S SIDE REAR POWER WINDOW DRIVE W/ CONTROL ELECTRONICS EARLY PRODUCTION ELECTRIC FAN ELECTRICAL EXHAUST FLAP ELECTRICAL MACHINE ELECTRONICS ELECTRICAL STEERING COLUMN ADJUSTMENT ELECTROCHROMIC INTERIOR MIRROR ELECTROCHROMIC INTERIOR REAR VIEW MIRROR ELECTROCHROMIC MIRROR ELECTROMECHANICAL POWER STEERING ELECTRONIC SUSPENSION SYSTEM ELECTRONIC TRANSMISSION CONTROL ELECTRONICS TOUCH DETECTION EMERGENCY LOUDSPEAKER EXTERIOR LAMPS CIRCUIT FRONT CENTER ARMREST LIGHT FRONT CENTER TWEETER FRONT CENTER VENTILATION GRILLE FRONT INTERIOR LIGHT FRONT PASSENGER AIR BAG GAS GENERATORS FRONT PASSENGER DOOR ENTRY LIGHTING FRONT PASSENGER DOOR INSIDE DOOR HANDLE LIGHT FRONT PASSENGER DOOR POCKET LIGHTING FRONT PASSENGER DOOR POWER WINDOW DRIVE W/ CONTROL ELECTRONICS FRONT PASSENGER EXTERIOR MIRROR FRONT PASSENGER INSIDE DOOR HANDLE LIGHT FRONT PASSENGER RETRACTOR TENSIONER FRONT PASSENGER SEAT ANGLE ADJUSTMENT DRIVE FRONT PASSENGER SEAT BACKREST ANGLE ADJUSTMENT DRIVE FRONT PASSENGER SEAT FORWARD/ BACK SEAT ADJUSTMENT FRONT PASSENGER SEAT FORWARD/ BACKWARD ADJUSTMENT DRIVE FRONT PASSENGER SEAT HEADREST HEIGHT ADJUSTMENT DRIVE FRONT PASSENGER SEAT HEIGHT ADJUSTMENT DRIVE FRONT PASSENGER SEAT MODULE FRONT PASSENGER SEAT OCCUPANCY DETECTION EVALUATION ELECTRONICS FRONT PASSENGER VEHICLE EXTERIOR MIRROR FRONT PASSENGER'S DOOR GROUND LIGHT 3 FRONT PASSENGER'S DOOR POCKET LIGHTING FRONT PASSENGER'S SEAT BELT BUCKLE CONTACT FRONT PASSENGER'S SEAT OCCUPANCY DETECTION EVALUATION ELECTRONICS FRONT POWER DISTRIBUTION BOX FRONT RIGHT DOOR SILL LIGHT STRIP FRONT RIGHT VENTILATION GRILLE FUEL FILLER FLAP CENTRAL LOCKING DRIVE FUEL INJECTOR CYLINDER 1 FUEL INJECTOR CYLINDER 2 FUEL INJECTOR CYLINDER 3 FUEL INJECTOR CYLINDER 4 GLOVE COMPARTMENT LIGHT GROUND DISTRIBUTION SYSTEM HEAD-UP DISPLAY HEADLIGHTS SYSTEM HEADLIGHTS, WIPER/WASHER SYSTEM HEAT MANAGEMENT MODULE HEATED REAR WINDOW BAND ELIMINATION CIRCUIT 2 HIGH BEAM HORNS SYSTEM HOT AT ALL TIMES HOT FILM AIR MASS METER HOT W/ HOT W/ TERMINAL INSTRUMENT CLUSTER SYSTEM INSTRUMENT PANEL INTEGRATED SUPPLY MODULE INTERFERENCE SUPPRESSION FILTER INTERFERENCE SUPPRESSOR FILTER JUMP START TERMINAL LASER MOTORWAY BEAM PATTERN LATE PRODUCTION LED ANTI- THEFT ALARM SYSTEM LED MODULE LEFT "C" PILLAR) LEFT FOG LIGHT LEFT FRONT FOOTWELL LIGHT LEFT FRONT MIXING FLAP DRIVE LEFT FRONT TWEETER LEFT FRONT VANITY MIRROR LIGHT LEFT FRONT VENTILATION GRILLE LEFT FRONT WHEEL ELECTRONICS SYSTEM LEFT FRONTAL LIGHT ELECTRONICS LEFT ILLUMINATED CARPET LEFT INNER TAILLIGHT LEFT OUTER TAILLIGHT LEFT PARKING BRAKE DRIVE LEFT REAR DOOR SILL LIGHT STRIP LEFT REAR RETRACTOR TENSIONER LEFT REAR SEAT BELT BUCKLE CONTACT LEFT REAR SEAT OCCUPANCY DETECTION LEFT REAR TWEETER LEFT REAR TWEETER 2 LEFT REAR WHEEL ELECTRONICS SYSTEM LEFT REVERSIBLE ELECTROMOTIVE AUTOMATIC REEL LEFT SHIFT PADDLE LIGHT SOURCE 3 LIGHT SOURCE 4 LIGHT SOURCE 5 LIGHT SOURCE 6 LIGHT SOURCE 10 LIN POWER DISTRIBUTION BOX LINES SYSTEM LOW BEAM MAGNETIC COUPLING MICROPHONE 2 + MIRROR FOLD- IN DRIVE MIRRORS SYSTEM NATURAL VACUUM LEAK DETECTION NAVIGATION SYSTEM OPTIONAL EQUIPMENT SYSTEM OPTIONAL W/ TERMINATION PLUG PARKING MANEUVERING ASSISTANT PASSENGER OUTSIDE DOOR HANDLE ELECTRONICS PASSENGER'S SIDE REAR POWER WINDOW DRIVE W/ CONTROL ELECTRONICS POWER DISTRIBUTION SYSTEM POWER WINDOWS SYSTEM POWER WINDOWS, DOOR LOCKS, ANTI-THEFT SYSTEMS POWER WINDOWS, DOOR LOCKS, ANTI-THEFT, TRUNK, TAILGATE, FUEL DOORS SYSTEMS PREPARATION TRAILER MODULE PLUG CONNECTION PREPARING THE NFC READER REAR AIR VENT GRILLE REAR CENTER SEAT BELT BUCKLE CONTACT REAR CENTER SEAT OCCUPANCY DETECTION REAR DRIVER SIDE OUTSIDE DOOR HANDLE ELECTRONICS REAR DRIVER'S SIDE DOOR INSIDE DOOR HANDLE LIGHT REAR DRIVER'S SIDE DOOR POCKET LIGHTING REAR DRIVER'S SIDE DOOR SILL COURTESY LIGHT REAR DRIVER'S SIDE FOOTWELL LIGHT REAR DRIVER'S SIDE FOOTWELL LIGHTING 3 REAR DRIVER'S SIDE INSIDE DOOR HANDLE LIGHT REAR DRIVER'S SIDE OUTSIDE DOOR HANDLE ELECTRONICS REAR INTERIOR LIGHT REAR PASSENGER INSIDE DOOR HANDLE LIGHT REAR PASSENGER SIDE COURTESY LIGHT REAR PASSENGER SIDE OUTSIDE DOOR HANDLE ELECTRONICS REAR PASSENGER SIDE SILL COURTESY LIGHT REAR PASSENGER'S SIDE COURTESY LIGHT REAR PASSENGER'S SIDE DOOR POCKET LIGHTING REAR PASSENGER'S SIDE DOOR POCKET LIGHTING 2 REAR PASSENGER'S SIDE FOOTWELL LIGHT REAR PASSENGER'S SIDE INSIDE DOOR HANDLE LIGHT REAR PASSENGER'S SIDE OUTSIDE DOOR HANDLE ELECTRONICS REAR POWER DISTRIBUTION BOX REAR WINDOW DEFOGGER REBOUND STAGE RECEIVER AUDIO MODULE REMOTE CONTROL RECEIVER RIGHT FOG LIGHT RIGHT FRONT FOOTWELL LIGHT RIGHT FRONT MIXING FLAP DRIVE RIGHT FRONT POWER DISTRIBUTION BOX RIGHT FRONT TWEETER RIGHT FRONT VANITY MIRROR LIGHT RIGHT FRONT VENTILATION GRILLE RIGHT FRONT WHEEL ELECTRONICS SYSTEM RIGHT FRONTAL LIGHT ELECTRONICS RIGHT ILLUMINATED CARPET RIGHT INNER TAILLIGHT RIGHT OUTER TAILLIGHT RIGHT PARKING BRAKE DRIVE RIGHT REAR DOOR SILL LIGHT STRIP RIGHT REAR RETRACTOR TENSIONER RIGHT REAR SEAT BELT BUCKLE CONTACT RIGHT REAR SEAT OCCUPANCY DETECTION RIGHT REAR TWEETER RIGHT REAR TWEETER 2 RIGHT REAR WHEEL ELECTRONICS SYSTEM RIGHT REVERSIBLE ELECTROMOTIVE AUTOMATIC REEL RIGHT SHIFT PADDLE RIGHT SIDE OF RADIATOR) RIGHT TRUNK LID LIFTING DRIVE ROOF FUNCTION CENTER SEATS SYSTEM SIDE MARKER LIGHT SOUND SYSTEMS SOURCE 1 SOURCE 2 SOURCE 3 SOURCE 4 SOURCE 6 SOURCE 7 SOURCE 8 SOURCE 9 SOURCE 11 SOURCE 12 SPARK PLUG STARTING/ CHARGING SYSTEM STARTING/CHARGING SYSTEM STARTING/CHARGING, ANTI-THEFT SYSTEMS STEERING WHEEL MODULE SUNROOF SHADE DRIVE SWIVEL MODULE TAIL LIGHT/ SIDE MARKER LIGHT TELEMATIC COMMUNICATION BOX TELEMATIC COMMUNICATION BOX SHIELD TOP DRIVER'S DOOR TRIM PANEL LIGHTING TOP FRONT PASSENGER DOOR TRIM PANEL LIGHTING TOP OF TRANSMISSION) TOP RADIATOR BLIND DRIVE TOP REAR DRIVER'S SIDE DOOR TRIM PANEL LIGHTING TOP REAR PASSENGER DOOR TRIM PANEL LIGHTING TRAILER BRAKE SYSTEM PLUG CONNECTION TRAILER MODULE TRANSFER BOX TRANSFER TERMINAL POINT TRANSMISSIONS SYSTEM TRUNK LID POWERTRAIN AUTOMATIC SOFT CLOSE SYSTEM TRUNK, TAILGATE, FUEL DOORS SYSTEM USB CONNECTION USB PORT USB- HUB VALVETRONIC SERVOMOTOR VERTICAL DYNAMICS PLATFORM W/0 DYNAMICS MANAGEMENT W/0 USB HUB W/ ADAPTIVE HEADLIGHTS W/ CAR SHARING MODULE W/ DYNAMICS MANAGEMENT W/ ELECTRICAL SEAT ADJUSTMENT W/ EXTENDABLE THIGH SUPPORT W/ HOT FILM AIR MASS METER W/ MEMORY W/ OPTIONAL EQUIPMENT SYSTEM W/ PREPARATION TRAILER MODULE W/ RECEIVER AUDIO MODULE W/ REGULATED REAR AXLE DIFFERENTIAL W/ SEAT MODULE W/ TELEMATICS W/ TRAILER MODULE W/ USB HUB W/ VERTICAL DYNAMICS PLATFORM W/O ACTIVE SEAT VENTILATION W/O CAR SHARING MODULE W/O ELECTRICAL SEAT ADJUSTMENT W/O EXTENDABLE THIGH SUPPORT W/O HOT FILM AIR MASS METER W/O INTERIOR LIGHT PACKAGE W/O LIN BUS FUNCTION W/O MEMORY W/O OPTIONAL EQUIPMENT SYSTEM W/O RECEIVER AUDIO MODULE W/O REGULATED REAR AXLE DIFFERENTIAL W/O SEAT MODULE W/O TELEMATICS W/O TRAILER MODULE W/O USB HUB W/O VERTICAL DYNAMICS PLATFORM WIPER DRIVE WIPER/WASHER SYSTEM WIRELESS CHARGING STORAGE