BMW 1 Series F20, F21 (2012-2018) – fuse box
BMW 1 Series F20, F21 fuses and relays (2012-2018)
Year of production: 2012, 2013, 2014, 2015, 2016, 2017, 2018.
Models: 114i, 116i, 118i, 120i, 125i, 114d, 116d, 118d, 120d, 125d.
Fuse layout BMW 1 Series F20, F21 (2012-2018)
Fuse box in the engine compartment
The scheme of the fuse box
| Number | Amperes [A] | Description |
|---|---|---|
| 1 | Not used | |
| 2 | Not used | |
| 3 | 5A | Control unit, roof electronics |
| 4 | Not used | |
| 5 | 7.5A | Door lock switches;
Passenger’s rear-view mirror. |
| 6 | 10 A. | Engine control unit |
| 7 | 10 A. | Automatic transmission electronic control unit (EAT) |
| 8 | 5A | Touch body control unit |
| 9 | Not used | |
| 10 | 10 A. | Seat adjustment |
| 11 | 5A | Left front lamp in the bathroom;
Front right lamp in the bathroom; Rain sensor; Interior lighting. |
| 12 | 5A | Cut-off relay;
Dynamic Stability Control (DSC). |
| 13 | Not used | |
| 14 | Not used | |
| 15 | 5A | Transfer box |
| 16 | 10 A. | Coolant pump;
Air conditioning compressor; Additional water pump. |
| 17 | Not used | |
| 18 | Not used | |
| 19 | 5A | Electrochromic rear view mirror |
| 20 | Not used | |
| 21 | 5A | Driver assistance system |
| 22 | 5A | Cruise control |
| 23 | 5A | Crankcase breather heater;
Coolant shut-off valve. |
| 24 | Not used | |
| 25 | 10 A. | Steering column switches |
| 26 | Not used | |
| 27 | 5A | Instrument cluster |
| 28 | Not used | |
| 29 | 7.5A | Instrument cluster |
| 30 | 5A | Glove box lighting |
| 31 | 7.5A | Gear shift switch |
| 32 | 5A | Electronic Power Steering (EPS) |
| 33 | 5A | Air quality sensor |
| 34 | Not used | |
| 35 | Not used | |
| 36 | Not used | |
| 37 | Not used | |
| 38 | Not used | |
| 39 | Not used | |
| 40 | 40A | Fuse box |
| 41 | 30A | Dynamic Stability Control (DSC) |
| 42 | Not used | |
| 43 | Not used | |
| 44 | Not used | |
| 45 | 30A | Convertible roof |
| 46 | 30A | Transfer box |
| 47 | 20A | Heated passenger seat |
| 48 | 20A | Heated driver’s seat |
| 49 | 20A | Lighter |
| 50 | 30A | Driver’s seat controller;
Driver seat adjustment. |
| 51 | 30A | Passenger seat adjustment;
Passenger seat control unit. |
| 52 | 12 V power supply | |
| 53 | Not used |
Fuse box in engine compartment (right side)
The scheme of the fuse box
| Number | Amperes [A] | Description |
|---|---|---|
| FL1 | 50A | (also 80 A) (also 125 A) Shut-off relay |
| FL2 | 125A | Electronic Power Steering (EPS) |
| FL3 | 100A | Additional heater |
| FL4 | 40A | Heated fuel filter |
| FL5 | 40A | Dynamic Stability Control (DSC) |
| FL6 | 40A | Blower motor |
Fuse and relay box in the engine compartment
| Number | Amperes [A] | Description |
|---|---|---|
| 1 | 20A | Engine control unit |
| 2 | 20A | Engine control unit |
| 3 | 10 A. | Engine control unit |
| 4 | 15A | Engine control unit |
| 5 | 20A | Engine control unit |
| 6 | 40A | Engine control unit |
| 7 | 50A | Coolant pump |
| R1 | Main DDE Relay |
Additional fuses in the passenger compartment
| Number | Amperes [A] | Description |
|---|---|---|
| 1 | Not used | |
| 2 | Not used | |
| 3 | Not used | |
| 4 | 30A | Passenger’s electric window |
| 5 | 20A | Central lock |
| 6 | 30A | Electric driver’s window |
| 7 | Central lock | |
| 8 | Not used | |
| 9 | Not used | |
| 10 | 5A | Control panel;
Driving Assistant System; Heating, ventilation and air conditioning (HVAC); Light switch. |
| 11 | 7.5A | Rear module,Left headlight. |
| 12 | 7.5A | Diagnostic socket |
| 13 | 5A | Telematics |
| 14 | 15A | Horn |
Fuse and relay box in the trunk
The scheme of the fuse box
| Number | Amperes [A] | Description |
|---|---|---|
| 1 | 5A | Camera control unit |
| 2 | 15A | Radio control unit |
| 3 | Not used | |
| 4 | Not used | |
| 5 | Not used | |
| 6 | 5A | Sound system |
| 7 | Not used | |
| 8 | Not used | |
| 9 | 5A | Telematics |
| 10 | 20A | Radio control unit |
| 11 | 30A | Hi-Fi amplifier |
| 12 | Not used | |
| 13 | Not used | |
| 14 | 20A | Trailer towing module |
| 15 | 20A | Trailer towing module |
| 16 | Not used | |
| 17 | Not used | |
| 18 | Not used | |
| 19 | Not used | |
| 20 | Not used | |
| 21 | Not used | |
| 22 | 5A | Siren, microwave sensor |
| 23 | 5A | Remote control receiver;
Vacuum leak detection. |
| 24 | Not used | |
| 25 | Not used | |
| 26 | Not used | |
| 27 | Not used | |
| 28 | Not used | |
| 29 | Not used | |
| 30 | Not used | |
| 31 | Not used | |
| 32 | Not used | |
| 33 | 10 A. | Sound system |
| 34 | 5A | DVD player |
| 35 | 5A | Base tiles |
| 36 | Not used | |
| 37 | Not used | |
| 38 | Not used | |
| 39 | Not used | |
| 40 | Not used | |
| 41 | Not used | |
| 42 | Not used | |
| 43 | Not used | |
| 44 | Not used | |
| 45 | Not used | |
| 46 | 20A | Trailer socket |
| 47 | Not used | |
| 48 | Not used | |
| 49 | 30A | DC-DC converter |
Fuse box in the trunk
| Number | Amperes [A] | Description |
|---|---|---|
| FL1 | 50A | Rear module |
| FL2 | 10 A. | Fuse box |
| FL3 | 10 A. | Power distribution |
| FL4 | 125A | Power distribution |
| FL5 | 125A | Integrated power module |
