The BMW 7 Series with the factory body index G11 G12 represents the sixth generation of the model, which was produced in 2015, 2016, 2017, 2018, 2019, 2020, 2021 and 2022. During this time, the model has undergone restyling. In our material, we will present a description of the fuses and relays of the BMW 7 G11 G12 with block diagrams, their locations and purpose. We will highlight the cigarette lighter fuse.
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.
Blocks in the cabin
Passenger side unit
On the right side, under the glove compartment, there is a fuse and relay block.
| № | A | Description |
|---|---|---|
| 20 | 30 | Safety system, reversible electromotor automatic reel (seat belt) |
| 21 | 40 | Dynamic Stability Control (DSC), ABS, parking |
| 22 | 30 | Safety system, reversible electromotor automatic reel (seat belt) |
| 23 | 30 | Door window regulator |
| 24 | 30 | Door window regulator |
| 25 | 30 | Door window regulator |
| 26 | 30 | Door window regulator |
| 27 | 20 | Rooftop function center |
| 28 | ||
| 29 | 20 | Headlights, rain sensor, light sensor |
| 30 | 5 | Parking brake |
| 31 | 5 | Instrument cluster control unit |
| 32 | 5 | Roof function center (map reading lamp, interior lighting, ambient lighting, hazard warning light) |
| 33 | ||
| 34 | Electronic ground clearance adjustment system | |
| 35 | Towbar module | |
| 36 | ||
| 37 | Air conditioning and ventilation system | |
| 38 | ||
| 39 | ||
| 40 | Interior lighting, BDC unit | |
| 41 | BDC Block | |
| 42 | ||
| 43 | ||
| 44 | ||
| 45 | ||
| 46 | Driver’s assistant | |
| 47 | Interior lighting, air conditioning | |
| 48 | Slag Cleaner Module | |
| 49 | Electronic transmission control, transfer case, 4*4 | |
| 50 | Cigarette lighter | |
| 51 | Seat heating | |
| 52 | Seat heating | |
| 53 | Driver’s seat module (with seat module), driver’s seat adjustment switch block (without seat module) | |
| 54 | Heater | |
| 55 | Front passenger seat module (with seat module), front passenger seat position adjustment switch block (without seat module) | |
| 56 | Electric steering column adjustment | |
| 57 | Steering column switch panel | |
| 58 | Roof function center | |
| 59 | ||
| 60 | Seat cushioning | |
| 61 | 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 light | |
| 62 | Glove box light switch, driver camera system, interior light | |
| 63 | Instrument panel speaker illumination, air freshener, CD drive, ionizer, 48 V starter generator | |
| 64 | Driver’s seat backrest width adjustment valve block, driver’s lumbar support valve block, seat adjustment switch block (driver’s side), rear footwell light (driver’s side), driver’s seat backrest rear panel light, USB charging port, front left seat inflation module | |
| 65 | Front passenger backrest width adjustment valve block, Front passenger lumbar support valve block, Seat adjustment switch block (front passenger side), Rear footwell lighting (front passenger side), Front passenger seat backrest rear panel lighting, USB charging port No. 2, front Right seat inflation module | |
| 66 | Interior lighting | |
| 67 | Driver switch cluster, Driver door seat switch cluster, Driver door interior handle illumination, Driver door trim panel illumination (center), Driver door pocket illumination, Driver door trim panel illumination (top), Front left midrange speaker illumination, Front left tweeter illumination | |
| 68 | Front passenger outside mirror, Passenger door switch assembly, Passenger inside door handle illumination, Front passenger door trim panel illumination (center), Passenger door pocket illumination, Front passenger door trim panel illumination (top), Front right midrange front right tweeter illumination | |
| 69 | Collision safety module | |
| 70 | Electric fan cut-off relay, electric fan | |
| 71 | Engine control | |
| 72 | ||
| 73 | ||
| 74 | Thermoelectric cup holder | |
| 75 | ||
| 76 |
Fuses F50, F273 and F284 are responsible for the operation of the cigarette lighter.
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 | – | |
| 2 | – | |
| 3 | – | |
| 4 | 20 | Locking relay, unlocking relay (doors, fuel tank flap) |
| 5 | – | |
| 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) |
| 7 | 15 | Signal (beep) |
| 8 | – | |
| 9 | – | |
| 10 | 5 | Steering column switch cluster, front center air vents, audio control panel, lighting control unit, head unit |
| 11 | 7,5 | Diagnostic connector, electronic ride height adjustment system, vertical dynamics platform |
| 12 | 7,5 | Heating/air conditioning system, rear door function module, rain/light/sun/condensation sensor |
| 13 | 5 | Start/stop system |
| 14 | – |
Driver’s side unit
Under the dashboard on the driver’s side is another block with fuses and relays.
The block itself will look something like this.
| № | A | Marking |
|---|---|---|
| 101 | – | |
| 102 | – | |
| 103 | – | |
| 104 | – | |
| 105 | 7,5 | Electronics and engine management |
| 106 | – | |
| 107 | 10 | Hybrid: Pressurized Fuel Tank Control Module |
| 108 | 15 | Electronics and engine management |
| 109 | – | |
| 110 | 5 | Additional electric heater, front midrange speaker illumination |
| 111 | 5 | Rear distribution board |
| 112 | – | |
| 113 | – | |
| 114 | – | |
| 115 | – | |
| 116 | – | |
| 117 | 30 | Automatic transmission, transfer case |
| 118 | – | |
| 119 | – | |
| 120 | – | |
| 121 | – | |
| 122 | – | |
| 123 | – | |
| 124 | – | |
| 125 | – | |
| 126 | – | |
| 127 | – | |
| 128 | – | |
| 129 | – | |
| 130 | – | |
| 131 | – | |
| Relay | ||
| R1 | – | |
| R2 | relay terminal 30B | |
Block in the trunk
Fuse and relay block
In the luggage compartment, on the right side under a protective cover, there is the main fuse and relay block.
Check the description and rating of the fuses with your circuit diagram on the booklet.
Additional relays, such as air suspension relays, can be installed next to the unit.
Additional fuses and relays can be installed outside the presented blocks.