Find BMW 3 Series fuse box diagrams for 2019–2026 models with fuse locations, panel layouts, and detailed electrical system information for popular petrol, diesel, and hybrid variants. This article covers the seventh-generation BMW 3 Series (Model Code: G20), available from 2019, and includes fuse box diagrams for BMW 3 Series 2019, 2020, 2021, 2022, 2023, 2024, 2025 and 2026 (Models: 318i, 320Li, 320i, 320e, 330e, 325Li, 330i, M340i, 316d, 318d, 330d and M340d), along with details about the location of the fuse panels inside the vehicle and a clear explanation of the assignment of each fuse (fuse layout).
Two fuse panels are positioned beneath the dashboard: the first is on the passenger side, and the second is on the driver side. In addition, there are several fuses on the Body Domain Controller, which is located in the passenger-side pillar behind the trim.
Fuse Box Diagram (No.1)
Fuses
Assignment of the fuses in the passenger compartment (Passenger’s Side)
Fuse Data
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Rear center door trim illumination (driver’s side), rear door pocket illumination (driver’s side), rear door handle illumination (driver’s side), driver’s side rear door trim illumination (top), rear left speaker illumination additional water pump (Diesel)
62
5A
Auxiliary battery, instrument panel speaker light, air freshener, CD drive, ionizer, 48V starter-alternator (B57, B58)
63
5A
Glovebox Light Switch Driver Camera System 48V Power Control Unit (PCU48), 48V Battery
64
5A
Driver’s seat back width adjustment valve block driver’s lumbar support valve block, seat adjustment switch block (driver’s side), footwell rear light (driver’s side), driver’s seat rear panel illumination USB charging port, front left inflation module seats
65
5A
Front Passenger Backrest Width Adjustment Valve Block Front Passenger Lumbar Support Valve Block, Seat Adjustment Switch Block (Front Passenger Side), Rear Footwell Light (Front Passenger Side), Front Passenger Backrest Rear Panel Light USB charging connector No.2, front right seat inflation module
66
5A
Upper Center Instrument Panel Light Front Passenger Side Upper Instrument Panel Light, Lower Center Instrument Panel Light, Driver/Passenger Side Lower Instrument Panel Light Front Left/Right Footwell Light
67
5A
Driver’s door switch box, Driver’s door switch box, Driver’s door inner handle illumination Driver’s door panel illumination (center), Driver’s door pocket illumination Driver’s door panel illumination (top), Front left midrange speaker illumination Front left tweeter Lighting
68
5A
Passenger Exterior Mirror, Passenger Door Switch Box, Passenger Door Inner Door Handle Lights, Front Passenger Door Panel Lights (Center), Passenger Door Pocket Lights, Front Passenger Door Panel Lights (Top), Front Right Midrange Loudspeaker Lights, illumination of the front right tweeter
69
5A
Radiator louvers (upper, lower)
70
5A
Rear switchboard electric fan off relay, electric fan
71
5A
Surround camera (with surround camera), rear view camera
72
7.5A
Motor control
73
5A
Instrument cluster control unit
74
10A
USB socket
75
10A
Failsafe protection module
76
5A
Driver Assistant
Fuse Box Diagram (No.2)
Fuses
Assignment of the fuses in the passenger compartment (Driver’s Side)
Fuse Data
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Steering column transfer case, front center vent, audio control panel, lighting control unit, head unit
F2
7.5A
Diagnostic socket, electronic ride height control vertical dynamic platform
F3
7.5A
Heating/A/C system. Tailgate function module Rain/Light/Sun/Sun/Condensation: sensor
F4
5A
Passenger Side Outside Door Handle Control Module Rear Driver Side Outside Door Handle Control Module, Rear Passenger Side Outside Door Handle Control. Module Power Control Module Telematics Module
F5
20A
Latching Relay. Unlocking Relay (Doors, Fuel Cap)
F6
20A
Driver Door Lock Relay, Lock Relay (Driver Door Lock, Front Passenger Door Lock, Driver Rear Door Lock, Passenger Rear Door Lock, Fuel Filler Door Central, Lock Actuator)
Luggage Compartment
Fuse Box Location
It is situated behind the trim panel on the right-hand side.
Fuse Box Diagram
Fuses
Assignment of the fuses in the luggage compartment
Fuse Data
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