BMW X7 is a full-size luxury crossover of the German company BMW, which was produced in 2019, 2020, 2021, 2022, 2023, 2024. In this post, we will present a description of the BMW X7 fuses and relays with fuse box diagrams, their locations and photographs. 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.
Contents
Passenger compartment
Passenger side fuse box
On the right side, under the glove box, is the fuse and relay box.
Photo – example
Diagram
Assignment
| 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 | 20A Body domain controller |
| 27 | – |
| 28 | 40A Dynamic Stability Control (DSC) |
| 29 | 15A Body domain controller |
| 30 | – |
| 31 | – |
| 32 | 5A Center console control panel |
| 33 | 5A Driver’s outer door handle electronic module |
| 34 | 5A Instrument cluster control unit |
| 35 | 5A Auxiliary control box |
| 36 | 5A Roof function center (map lamp, interior lighting, ambient lighting) |
| 37 | 10A Output stage for rear fan motor (4-zone A/C) |
| 38 | – |
| 39 | 60A Body domain controller |
| 40 | 40A Fan motor with output stage |
| 41 | – |
| 46 | 20A Rear cigarette lighter, front cigarette lighter (without thermoelectric cup holder), thermoelectric cup holder |
| 47 | 30A Wiper module |
| 48 | – |
| 49 | 20A Electric steering column adjustment |
| 50 | 15A Thermoelectric cup holder |
| 51 | 30A B46, B48, B58, N63: Electronic transmission control, transfer case |
| 52 | 20A Front passenger seat heating electronics |
| 53 | 30A Driver’s seat module (with seat module), driver’s side seat adjustment switch block (without seat module) |
| 54 | 20A Independent Auxiliary Heater (SHZH) |
| 55 | 30A Front passenger seat module (with seat module), front passenger seat adjustment switch block (without seat module) |
| 56 | 10A Heated armrest electronic control unit, front passenger side |
| 57 | 10A Heated armrest electronic control unit, driver’s side |
| 59 | 5A USB socket #2 electrochromic interior rear view mirror |
| 60 | 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) |
| 61 | 5A Glove box light switch, driver camera system, 48V power control unit (PCU48), 48V battery |
| 62 | – |
| 63 | 5A Auxiliary battery, instrument panel speaker light, air freshener, CD drive, ionizer, starter-alternator 48V (B57, B58) |
| 64 | 10A 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 | 10A 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 USB Charging Socket No.3 (Rear Console) |
| 73 | 5A Instrument cluster control unit |
| 74 | 10A Steering column switch box |
| 75 | 10A Crash safety module |
| 76 | 15A Auxiliary Coolant Pump (Rear Air Conditioner) |
R1 – Terminal 30B relay
Fuse 46 is responsible for the operation of the cigarette lighter.
Fuse box
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.
Diagram
Designation
- 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.
Diagram
Allocation
| 101 | – |
| 102 | – |
| 103 | – |
| 104 | – |
| 105 | 7.5A Electronics of electrical machines |
| 106 | – |
| 107 | 10A Hybrid: Pressurized fuel tank control module |
| 108 | – |
| 109 | – |
| 110 | 5A Auxiliary electric heater, front midrange speaker lighting |
| 111 | 5A Rear switchboard |
| 112 | – |
| 113 | – |
| 114 | – |
| 115 | – |
| 116 | – |
| 117 | 30A Hybrid: Automatic transmission, transfer case |
| 118 | – |
| 119 | – |
| 120 | – |
| 121 | – |
| 122 | – |
| 123 | – |
| 124 | – |
| 125 | – |
| 126 | – |
| 127 | – |
| 128 | – |
| 129 | – |
| 130 | – |
| 131 | – |
- R1-
- R2 – Terminal 30B relay
Luggage compartment
Main fuse box
In the luggage compartment, on the right side under the protective cover is the main fuse and relay box.
Photo
Diagram
Appointment
| 200 | – |
| 201 | – |
| 202 | – |
| 203 | 7.5A Electric Exhaust Damper (B46, B46, B58, N63, S63), Electric Exhaust Damper #2 (N63, S63) |
| 204 | 5A Rear axle tilt control, AUC sensor, adjustable rear axle differential lock |
| 205 | – |
| 206 | – |
| 207 | 5A Front left/right side short range radar sensor, rear left/right short range radar sensor, optional add-on system |
| 208 | 5A Electromechanical power steering |
| 209 | 5A Long range front radar sensor (active cruise control (high version)), front radar sensor (basic cruise control (high version)), front electrical active roll stabilization, rear electrical active roll stabilization |
| 210 | 5A Electric fuel pump control electronics |
| 211 | 5A Electronic night vision module (BMW Night Vision) |
| 212 | 15A head unit |
| 213 | 15A Trailer socket |
| 214 | 5A Booster |
| 215 | 10A Rear Seat Entertainment |
| 216 | 5A Wireless Charging Tray Antenna Amplifier |
| 217 | 40A Booster |
| 218 | 12A 12V connection #2 (luggage compartment) |
| 219 | – |
| 220 | 30A Receiver audio module |
| 221 | – |
| 222 | – |
| 223 | – |
| 224 | 20A Vertical dynamics platform (Executive Drive Pro) |
| 225 | – |
| 226 | 40A Rear door function module |
| 227 | 30A Selective catalytic reduction (SCR) control unit |
| 228 | – |
| 229 | – |
| 230 | 30A Right reversible electromotive automatic reel (seat belt) |
| 231 | 30A Rear window heating |
| 232 | – |
| 233 | – |
| 234 | – |
| 235 | – |
| 236 | – |
| 237 | – |
| 238 | – |
| 239 | – |
| 240 | 20A Trailer module |
| 242 | – |
| 243 | – |
| 244 | 5A Remote Control Receiver, Natural Vacuum Leak Detection, Tilt Alarm Siren, High Voltage Battery Pack (Hybrid), Gas Generator with Battery Protective Terminal (with Dual Storage System, with 48V System) |
| 245 | – |
| 246 | – |
| 247 | 15A Rear Compartment Air Conditioning System |
| 248 | – |
| 249 | 10A Passenger’s door closer |
| 250 | 5A Interior lighting, vanity mirror lighting, glass hatch lighting |
| 251 | 10A Automatic driver’s door closer |
| 252 | 5A Auxiliary battery |
| 253 | 7.5A Parking assistant, automatic rear air conditioner, camera-based driving assistance system, rear right seat heating switch, rear left seat heating switch |
| 254 | 5A Luggage compartment lighting, trunk lid button for the bottom of the trunk lid, trunk lid button on the inside of the trunk lid |
| 255 | 5A Luggage compartment switch box |
| 256 | 10A Automatic closer drive, rear passenger side |
| 257 | 5A Rear right speaker light, rear passenger door pocket light, rear passenger side interior door handle light, rear passenger side center door trim panel light, upper rear passenger door trim panel light, left/right reversible electric motor automatic drum |
| 258 | 10A Rear wheel drive with driver’s side automatic closer |
| 259 | 15A Selective catalytic reduction (SCR) control unit |
| 260 | 10A Automatic soft closing tailgate lower left |
| 261 | 5A USB Charging Socket No.: 4 & 5 (Third Row of Seats) |
| 262 | 5A Controller, Self Leveling Suspension Button, Wireless Charging Tray, Center Console Light, Front Center Armrest Light |
| 263 | 10A Automatic soft close right lower tailgate |
| 264 | 10A Trunk lid/trunk lock |
| 265 | 30A Adjustable rear axle differential lock |
| 266 | 20A Trailer module |
| 267 | 30A Trailer module |
| 268 | – |
| 269 | 30A Driver side rear seat module |
| 270 | 30A Electric fuel pump control electronics |
| 271 | 30A with seat module: Rear passenger side seat module |
| 30A without seat module: passenger side rear seat heating module, driver’s side rear seat heating module | |
| 272 | – |
| 273 | – |
| 274 | 30A Seat Heating Electronics in Third Row of Seats |
| 276 | – |
| 277 | – |
| 278 | 5A Hybrid: Charging controller for auxiliary battery |
| 279 | 5A Non-contact tailgate evaluation electronics |
| 280 | 5A Convenient electronics charging |
| 281 | – |
| 282 | – |
| 283 | – |
| 284 | – |
| 285 | – |
| 286 | – |
| 287 | – |
| 288 | – |
| 289 | 20A Trailer module |
| 290 | – |
| 291 | – |
| 292 | – |
| 293 | – |
| 294 | – |
| 295 | – |
| 296 | – |
R1 – Terminal 30B relay
Check the appointment with your scheme, on the booklet.
An example of a diagram with a designation
Power fuse box
It is also located on the right, under the covery.
Diagram
Decoding
| 500 | 50A Booster |
| 501 | 250A Rear power distributor (luggage fuse box) |
| 502 | 250A Front Right Power Distribution Box (Passenger Compartment Fuse Box #2) |
| 503 | 40A 3rd row auxiliary heating control |
| 504 | 60A Body domain controller |
| 505 | 100A Front left switchboard |
| 506 | 80A Rear Axle King Pin Inclination Control (Integral Active Steering) |
| 508 | 60A except hybrid: power control unit |
| 60A Hybrid: Charging controller for auxiliary battery | |
| 510 | 40A Electronic ride height control |
Engine compartment
If one of the fuses in these units is defective, the entire power module must be replaced.
Additional fuse box
Location and diagram
Assignment
| 400 | 80A Fan 400W, 600W: electric fan shutdown relay |
| 125A Fan 850W: Electric Fan Shutdown Relay | |
| 150A Fan 1000W: Electric Fan Shutdown Relay | |
| 401 | 150A Electromechanical power steering |
| 402 | 100A Front electric auxiliary heater |
| 403 | – |
| 404 | 80A Dynamic Stability Control (DSC) |
| 405 | – |
| 406 | Built-in power module 125 A |
Integrated supply module
Diagram
Designation
| 1 | 7.5A N63: oil level sensor, oil pressure control valve, shut-off valve for the entire heater circuit |
| 7.5A S63: oil pressure control valve | |
| 7.5A B48, B58: oil level sensor, oil pressure control valve, heating control module | |
| 7.5A B47, B57: oil level sensor, oil pressure control valve, fuel quantity control valve | |
| 2 | 5A N63, B48, B58, S63: Turbocharger coolant pump |
| 5A B57: Piston cooling solenoid valve | |
| 3 | 10A N63: Coolant pump switch element |
| 10A S63: Thermostat with characteristic map | |
| 10A B48: Coolant bottle shut-off valve | |
| 10A B47, B57: Engine support switching valve, oxygen sensor after catalytic converter | |
| 4 | 15A N63 (M50i): purge valve 1 and 2 |
| 15A B48, B58: Engine ventilation heater, purge air line shut-off valve (except recovery system) | |
| 15A B47, B57: oxygen sensor before catalytic converter | |
| 5 | 20A N63: thermostat curve, lambda probe before catalytic converter, lambda probe after catalytic converter |
| 20A S63: Lambda probe before catalytic converter, lambda probe after catalytic converter, lambda probe after catalytic converter #2 | |
| 20A B48, B58: pre-catalyst oxygen sensor, post-catalyst oxygen sensor, purge valve (with additional volume, RDE) | |
| 20A B57 TOP: Compressor bypass plate bypass valve, turbine control damper pressure transducer | |
| 20A B57S: High pressure compressor actuator flap changeover valve, turbine control flap changeover valve | |
| 20A B47: Compressor bypass plate changeover valve, coolant shut-off valve for low stage turbocharger | |
| 6 | 15A N63, B48, B58: Coolant pump in the low temperature coolant circuit |
| 20A B57: Pressure converter for bypass valve, low pressure compressor bypass valve, coolant pump changeover valve (except B57S), EGR cooler bypass valve, nitric oxide sensor before SCR catalytic converter, nitric oxide sensor after SCR catalytic converter | |
| 7 | 15A N63: oxygen sensor #2 before catalytic converter, oxygen sensor #2 after catalytic converter |
| 15A S63: Lambda probe before catalytic converter #2, lambda probe after catalytic converter #2, lambda probe after catalytic converter #2 | |
| 15A B47, B57: Diesel particulate sensor, low pressure EGR damper | |
| 8 | 15A N63, B48, B58, S63: Digital Engine Electronics (DME) |
| 10A B47, B57: Digital Diesel Electronics (DDE), engine breather heater, rail pressure control valve | |
| 9 | 20A B48, B58: Coolant pump in the low temperature coolant circuit |
| 10 | 30A N63, B48, B58, S63: Digital Engine Electronics (DME) |
| 30A B47, B57: Digital Diesel Electronics (DDE) | |
| 11 | 20A N63, B48, B58, S63: Digital Engine Electronics (DME) |
| 12 | 30A N63, S63: Digital Engine Electronics (DME) No. 2 |
| 40A B47, B57: fuel filter heater | |
| 13 | 20A N63, S63: Digital Engine Electronics (DME) No. 2 |
| 15A B47, B57: Digital Diesel Electronics (DDE) | |
| 14 | 40A N63, B48, B58, S63: Digital Engine Electronics (DME) |
| 40A B47, B57: Digital Diesel Electronics (DDE) | |
| 15 | 40A N63, S63: Digital Engine Electronics (DME) No. 2 |
| 40A B48, B58: transmission oil pump | |
| 30A B47, B57: Digital Diesel Electronics (DDE) | |
| 16 | – |
| 17 | 20A S63: Coolant pump 3 in the low temperature coolant circuit |
| 18 | 10A N63, S63: VANOS solenoid actuator for intake/exhaust valves, fuel tank vent valve |
| 10A B48, B58: Digital Engine Electronics (DME), VANOS intake/exhaust solenoid actuator, fuel tank vent valve | |
| 19 | 10A N63, S63: VANOS intake/exhaust solenoid actuator no. 2, fuel tank vent valve no. 2 |
| 20 | 15A N63, S63: Digital Engine Electronics (DME) No. 2 |
Petrol engines
B48 – 2.0L (xDrive30i)
B58 – 3.0L (xDrive40i, sDrive40i and Hybrid xDrive45e)
N63 – 4.4L V8 (xDrive50i and M50i)
S63 – 4.4L V8 (M&M Competition)
Diesel engines
B47 – 2.0L (xDrive25d)
B57 – 3.0L (xDrive30d, xDrive40d & M50d)
Have something to add or found a mistake – write in the comments.