The BMW i4 (model code G26) is a battery electric compact executive car produced by BMW in 2021, 2022, 2023, 2024, 2025, 2026. In our post you will find a description of the fuses and relays BMW i4 G26 with fuse box diagrams, their locations and photo examples of execution. Select the fuse responsible for the cigarette lighter.
The purpose of the elements may differ from that shown and depends on the year of manufacture, the level of electrical equipment and the region where your car was delivered.
Passenger side fuse box
On the right side, under the glove box, is the fuse and relay box.
Photo – example
On a RHD i4 you can find the front fusebox under the steering wheel footwell.
|20||30A Power window actuator, driver’s door with control electronics|
|21||30A Front passenger window with control electronics|
|22||30A Driver’s side rear power window with control electronics|
|23||30A Passenger side rear power window with control electronics|
|24||30A Left reversible electromotive automatic reel (seat belt)|
|25||20A Roof function center|
|26||40A Body domain controller|
|28||40A Dynamic Stability Control (DSC)|
|29||20A Electronic transmission control, transfer case|
|30||15А Media system|
|32||5A Center console control panel, parking|
|34||5A Instrument cluster control unit|
|36||5A Roof function center (map lamp, interior lighting, ambient lighting)|
|37||5A Central lock|
|38||5A Driver’s outer door handle electronic module|
|39||60A Body domain controller|
|40||40A Fan motor with output stage|
|46||20A Cigarette lighter, thermoelectric cup holder|
|47||20A Engine management|
|48||20A Heated seats|
|49||10A Electric steering column adjustment|
|50||30А Heated seats|
|51||30A Engine management|
|52||20A Seat heating electronics|
|53||30A Trailer module|
|54||20A Autonomous additional heater|
|55||30A Seat module (with seat module), seat adjustment switch block (without seat module)|
|56||30A Seat module (with seat module), seat adjustment switch block (without seat module)|
|57||10A Electric steering column adjustment|
|59||5A Electrochromic interior rear view mirror|
|60||5A Driver assitanse|
|61||5A Center rear door trim panel illumination (driver’s side), rear door pocket illumination (driver’s side), rear door interior handle illumination (driver’s side), rear door trim panel illumination driver’s side (top), rear left speaker illumination , additional water pump ( Diesel)|
|62||5A Auxiliary battery, instrument panel speaker light, air freshener, CD drive, ionizer, starter-alternator 48V (B57, B58)|
|63||5A Glove box 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 taillight (driver’s side), backlight driver’s seat back panel, USB charging port, front left seat inflation module|
|65||5A Front passenger’s backrest width adjustment valve block, Front passenger’s lumbar support valve block, Seat adjustment switch block (front passenger’s side), Rear footwell lighting (front passenger’s side), Front passenger’s backrest rear panel lighting, USB connector for charging No. 2, front Right seat inflation module|
|66||5A Upper center instrument panel light, upper front passenger side instrument panel light, lower center instrument panel light, lower driver/passenger side instrument panel light, front left/right footwell lighting|
|67||5A Driver’s door switch box, Driver’s door seat switch box, Driver’s door interior handle lighting, Driver’s door trim panel lighting (center), Driver’s door pocket lighting, Driver’s door trim panel lighting (top), Front left midrange speaker lighting, Front Left Tweeter Illumination|
|68||5A Passenger’s exterior mirror, Passenger’s door switch box, Passenger’s interior door handle illumination, Front passenger’s door trim panel illumination (center), Passenger’s door pocket illumination, Front passenger’s door trim panel illumination (top), Front right midrange speaker illumination, Illuminated front right tweeter|
|69||5A Radiator shutters (upper, lower)|
|70||5A Rear switchboard, electric fan shutdown relay, electric fan|
|71||5A Surround Camera (with Surround Camera), Rear View Camera|
|72||7,5A Engine management|
|73||5A Instrument cluster control unit|
|74||10A USB socket|
|75||10A Crash safety module|
|76||5A Driver assitanse|
The cigarette lighter is powered by fuse number 46 at 20A.
The fuse compartment is installed in the BDC (Body Domain Controller) electronic control unit, which is mounted on the right pillar, under the passenger compartment trim on the right side of the passenger.
- 5A Steering column switch box, front center air vent, audio control panel, lighting control unit, head unit
- 7.5A Diagnostic socket, electronic ride height control, vertical dynamics platform
- 7.5A Heating/air conditioning system, tailgate function module, rain/light/ sun/condensation sensor
- 5A Passenger Side Outer Door Handle Electronic Module, Driver Side Rear Door Outer Handle Electronic Module, Rear Passenger Side Outer Door Handle Electronic Module, Power Control Unit, Telematics Unit
- 20A Lock Relay, Unlock Relay (Doors, Fuel Cap)
- 20A Driver’s Door Lock Relay, Lockout Relay (Driver’s Door Lock, Front Passenger’s Door Lock, Driver’s Side Rear Door Lock, Rear Passenger’s Side Door Lock, Fuel Door Central Lock Actuator)
Driver side fuse box
Under the instrument panel on the driver’s side is another box with fuses and relays.
The fuse box itself will look something like this.
|102||7.5A Electronics, engine management|
|107||10A Hybrid: Pressurized fuel tank control module|
|117||30A Hybrid: Automatic transmission, transfer case|
|118||5A Auxiliary electric heater, front midrange speaker lighting|
- R2 – Terminal 30B relay
Main fuse box
In the luggage compartment, on the right side under the protective cover is the main fuse and relay box.
Check the appointment with your scheme, on the fusecard
An example of a layout with a designation
Have something to add or found a mistake – write in the comments.