BMW 1 F40 represents the 3rd generation of the BMW 1 model range, which was produced in 2019, 2020, 2021, 2022, 2023, 2024,2025. During this time, this model has been updated. In this article you will find a description of the fuses and relays of the BMW 1 F40 with block diagrams, their locations and photos. Let’s highlight the fuse responsible for the cigarette lighter.
The purpose of fuses and relays may differ from the one presented and depends on the year of manufacture and the level of electrical equipment of your vehicle.
Fuse block
The fuse compartment is installed in the BDC (Body Domain Controller) electronic control unit, which is mounted on the right pillar under the interior trim on the passenger’s right side.
| № | A | Marking |
|---|---|---|
| 1 | 5 | Steering column switch cluster, front center air vents, audio control panel, lighting control unit, head unit |
| 2 | 7.5 | Diagnostic connector, electronic ride height adjustment system, vertical dynamics platform |
| 3 | 7.5 | Heating/air conditioning system, rear door function module, rain/light/sun/condensation sensor |
| 4 | 5 | Electronic module for the passenger side exterior door handle, electronic module for the driver side rear exterior door handle, electronic module for the rear passenger side exterior door handle, power control unit, telematics unit |
| 5 | 20 | Locking relay, unlocking relay (doors, fuel tank flap) |
| 6 | 20 | Driver’s door lock relay, lock relay (driver’s door lock, front passenger door lock, driver’s side rear door lock, rear passenger side door lock, fuel filler flap central locking actuator) |
Fuse and relay block
Inside the car, behind the rear glove compartment cover, there is a main unit with fuses and relays.
Check the assignment of fuses and relays with your circuit diagram, which is located in the brochure or other technical documentation.
Fuses 56, 62, 65, 86 are responsible for the operation of the cigarette lighters.