BMW 2-series F45, F46 (2015 – 2021) Fuse Box Location & Diagrams
Maintaining the electrical system in your BMW 2-series F45 or F46 (2015–2021) is simple with the right information. Access precise fuse box locations and clear, easy-to-read diagrams to troubleshoot issues efficiently. Keep your vehicle performing at its best by mastering these essential DIY maintenance and repair steps.
Fuse Box Location
Passenger Compartnent Fuse Box & BDC
The fuse/relay box is located behind a cover in the glove compartment on the front passenger side. Push the holder down, arrow 1, and remove the cover, arrow 2.

BDC
It is located in the front pillar on the passenger side, under the glove box.
Fuse Box Diagrams
Passenger Compartment Fuse Box

| № | Amps | Description |
|---|---|---|
| 32 | 40A | Body Domain Controller |
| 34 | 40A | Fan output stage |
| 35 | 50A | Body Domain Controller |
| 37 | 5A | Parking brake button |
| 38 | 5A | Siren with tilt sensor |
| 39 | 5A | Roof function center |
| 40 | 5A | Dynamic Stability Control (DSC) |
| 41 | 5A | Instrument cluster control unit |
| 42 | 5A | Remote control receiver |
| 43 | 30A | Roof Function Center |
| 44 | 20A | Right headlight |
| 45 | 30A | Without electromechanical parking brake: Dynamic Stability Control (DSC) |
| 40A | With electromechanical parking brake: Dynamic Stability Control (DSC) | |
| 46 | 5A | Natural vacuum leak detection |
| 47 | 20A | Left headlight |
| 48 | 30A | Selective Catalytic Regeneration (SCR) Control Unit |
| 49 | 5A | Electric exhaust flap, electric auxiliary heater control electronics No. 2 |
| 50 | 5A | Radiator shutter actuator, catalytic converter sensor (except PHEV) |
| 51 | 5A | Fan Base |
| 52 | 5A | Electrochromic interior rear view mirror |
| 53 | 5A | Automatic air recirculation control (AUC) sensor |
| 54 | 5A | Electromechanical power steering |
| 55 | 4A | Reversing camera, parking assistant |
| 56 | 5A | Longitudinal Torque Distribution, Vehicle Sound Generator (PHEV), Vehicle Sound Generator No.2 (PHEV) |
| 58 | 10A | Steering column switch |
| 59 | 5A | Camera-based driver assistance system |
| 60 | 5A | Additional optional system |
| 61 | 20A | Head unit (radio or navigation system) |
| 62 | 5A | Front interior lighting, rain light, solar condensation sensor, vanity mirror lighting, third row interior lighting, trim strip lighting, interior trim lighting, door trim lighting |
| 63 | 20A | Trailer socket |
| 65 | 20A | Front cigarette lighter (12V socket), socket (under glove box) |
| 66 | 20A | Electric fuel pump control electronics |
| 67 | 5A | Outside mirror (front passenger) |
| 68 | 5A | Touchbox, controller (CON), USB hub, USB charging connector No.3 |
| 69 | 5A | Outside mirror (switch block – driver’s door) |
| 70 | 5A | Luggage compartment light, glove box light, rear lid button on the inside of the rear lid |
| 71 | 7.5A | Instrument cluster control unit |
| 72 | 5A | Electric fan cut-out relay |
| 5A | Fan >400W: Built-in power module | |
| 73 | 10A | Driver’s Seat Back Adjustment (Valve Block), Driver’s Lumbar Support Valve Block, Driver’s Seat Back Width Adjustment Switch |
| 74 | 7.5A | Gasoline (TU): Turbocharger coolant pump |
| 75 | 10A | Front passenger seat backrest adjustment (valve block), passenger lumbar support valve block, passenger seat backrest width adjustment switch |
| 77 | 10A | Nitrogen Oxide Sensor Downstream Selective Catalytic Reduction (SCR) Converter |
| 78 | 15A | Selective Catalytic Regeneration (SCR) Control Unit |
| 79 | 5A | Base, Wireless Charging Accessory Tray, Wireless Charging Accessory Tray Antenna Booster |
| 80 | 5A | Front interior lighting |
| 81 | 15A | Electronic transmission control |
| 82 | 5A | Selector level (gear switch) |
| 83 | 7.5A | Digital engine electronics. |
| 84 | 5A | With manual transmission: clutch module |
| 5A | With dual clutch transmission: dual clutch transmission control unit, dual clutch transmission relay. | |
| 85 | 5A | Electrochromic interior rear view mirror |
| 90 | 5A | Automatic tailgate release |
| 92 | 10A | Optional optional system |
| 94 | 20A | Remote control electronics for seat back release |
| 95 | 30A | Seat adjustment switch block, front passenger side |
| 96 | 10A | Trunk/tailgate lock |
| 97 | 5A | Auxiliary control unit |
| 100 | 5A | PHEV: High voltage battery pack |
| 101 | 5A | ID Reader, Car Sharing Module (CSM) |
| 103 | 20A | Right headlight |
| 104 | 20A | Left headlight |
| 107 | 40A | Rear door function module |
| 109 | 5A | Bistable relay |
| 110 | 5A | Bistable relay |
| 115 | 5A | PHEV: Convenient charging electronics |
| 119 | 20A | Trailer module |
| 120 | 20A | Trailer module |
| 121 | 7.5A | USB charging port #4 |
| 122 | 5A | PHEV: Gas generator with safety battery terminal |
| 123 | 5A | PHEV: Electric air conditioning compressor, additional electric heater |
| 124 | 10A | PHEV: Electrical Machine Electronics |
| 127 | 30A | Electronic driver’s seat heater (basic version), driver’s seat module (High version) |
| 128 | 30A | Electronically heated front passenger seat |
| 129 | 30A | Hi-Fi amplifier |
| 130 | 10A | Petrol: Coolant pump 2 in low temperature coolant circuit |
| 131 | 30A | Longitudinal torque distribution, transmission oil pump (PHEV) |
| 132 | 20A | Socket under armrest, rear socket, socket in trunk |
Body Domain Controller

| № | Amps | Description |
|---|---|---|
| 1 | 30A | Electric windows (passenger) |
| 2 | 30A | Electric windows (driver’s side – rear) |
| 3 | 20A | Door lock (front passenger) |
| 4 | 30A | Electric windows (driver) |
| 5 | 30A | Heated rear window |
| 6 | 30A | Power window (passenger side – rear) |
| 7 | 30A | Door lock (driver) |
| 9 | 5A | Lighting control panel, steering column switch combination, driver assistance system control panel with hazard warning light switch |
| 10 | 7.5A | Diagnostic connector |
| 11 | 7.5A | Heating/Air Conditioning System, Rear Door Function Module |
| 12 | 5A | Analysis of the electronics for contactless opening of the rear door, telematic communication unit, electronic module of the external door handle (driver/passenger) |
| 13 | 15A | Horn |



