BMW 3 F30/F31/F34 (2011-2019) – fuse box diagram
Year of production:2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019.
Fuse box in the engine compartment
Diagram of the fuse box
| No. | Amps [A] | Description |
|---|---|---|
| 1 | Unused | |
| 2 | Unused | |
| 3 | 5A | Control unit, roof electronics |
| 4 | 5A | Heater control unit |
| 5 | 7,5A | Door lock switches;
Passenger rearview mirror. |
| 6 | 10 A | DDE main relay |
| 7 | 10 A | Electronic automatic transmission (EAT) control unit. |
| 8 | 5A | Touchbox;
Body control unit. |
| 9 | Unused | |
| 10 | 10 A | Seat adjustment |
| 11 | 5A | Front left bathroom light;
Front right lamp in the bathroom; Rain sensor; Interior lighting. |
| 12 | 5A | Cutoff relay;
Dynamic Stability Control (DSC). |
| 13 | Unused | |
| 14 | Unused | |
| 15 | 5A | Transfer box |
| 16 | 10 A | Coolant pump;
A/C compressor; Additional water pump. |
| 17 | Unused | |
| 18 | Unused | |
| 19 | 5A | Electrochromatic rear view mirror |
| 20 | Unused | |
| 21 | 5A | Driver assistance system |
| 22 | 5A | Cruise control |
| 23 | 5A | Crankcase vent heater;
Coolant shut-off valve. |
| 24 | Unused | |
| 25 | 10 A | Steering column switches |
| 26 | Unused | |
| 27 | 5A | Instrument cluster |
| 28 | Unused | |
| 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 | Unused | |
| 35 | Unused | |
| 36 | Unused | |
| 37 | Unused | |
| 38 | Unused | |
| 39 | Unused | |
| 40 | 40A | Fuse box |
| 41 | 30A | Dynamic stability control (DSC) |
| 42 | Unused | |
| 43 | Unused | |
| 44 | Unused | |
| 45 | 30A | Replacement 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’s seat control. |
| 51 | 30A | Passenger seat adjustment;
Passenger seat control unit. |
| 52 | 12 V power supply | |
| 53 | Unused |
Fuse and relay box in the engine compartment
| No. | Amps [A] | Protected circuits |
|---|---|---|
| 1 | 20 | Rail pressure control valve;
Fuel quantity regulator; Camshaft position sensor; Charge pressure regulator solenoid valve. |
| 2 | 20 | Oxygen sensor before catalytic converter;
Oxygen sensors after catalytic converter; Mass flow meter; Oil level sensor; EGR radiator switch valve. |
| 3 | 30 | DDE control unit |
| 4 | Unused | |
| 5 | Unused | |
| R1 | DDE main relay |
Fuse and relay box in the engine compartment (type 2)
| No. | Amps [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 | DDE main relay |
Fuse box in the engine compartment on the right side
| No. | Amps [A] | Description |
|---|---|---|
| FL1 | 50A | (also 80A) (also 125 A) Cutoff 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 trunk
Diagram of the fuse box
| No. | Amps [A] | Description |
|---|---|---|
| 1 | 5A | Camera control unit |
| 2 | 15A | Radio control unit |
| 3 | Unused | |
| 4 | Unused | |
| 5 | Unused | |
| 6 | 5A | Sound system |
| 7 | Unused | |
| 8 | Unused | |
| 9 | 5A | Telematics |
| 10 | 20A | Radio control unit |
| 11 | 30A | Hi-Fi amplifier |
| 12 | Unused | |
| 13 | Unused | |
| 14 | 20A | Trailer towing module |
| 15 | 20A | Trailer towing module |
| 16 | Unused | |
| 17 | Unused | |
| 18 | Unused | |
| 19 | Unused | |
| 20 | Unused | |
| 21 | Unused | |
| 22 | 5A | Microwave sensor siren |
| 23 | 5A | Remote control receiver
Vacuum leak detection |
| 24 | Unused | |
| 25 | Unused | |
| 26 | Unused | |
| 27 | Unused | |
| 28 | Unused | |
| 29 | Unused | |
| 30 | Unused | |
| 31 | Unused | |
| 32 | Unused | |
| 33 | 10 A | Sound system |
| 34 | 5A | DVD player |
| 35 | 5A | Base plates |
| 36 | Unused | |
| 37 | Unused | |
| 38 | Unused | |
| 39 | Unused | |
| 40 | Unused | |
| 41 | Unused | |
| 42 | Unused | |
| 43 | Unused | |
| 44 | Unused | |
| 45 | Unused | |
| 46 | 20A | Trailer socket |
| 47 | Unused | |
| 48 | Unused | |
| 49 | 30A | DC-DC converter |
Fuse box in the trunk on the right side
| No. | Amps [A] | Description |
|---|---|---|
| FL1 | 50A | Rear module |
| FL2 | 100A | Fuse box |
| FL3 | 100A | Power distribution |
| FL4 | 125A | DDE main relay |
| FL5 | 125A | Integrated power module |
Additional fuses in the passenger compartment
| No. | Amps [A] | Description |
|---|---|---|
| 1 | Unused | |
| 2 | Unused | |
| 3 | Unused | |
| 4 | 30A | Electric passenger window |
| 5 | 20A | Central locking system |
| 6 | 30A | Electric driver’s window |
| 7 | ||
| 8 | Unused | |
| 9 | Unused | |
| 10 | 5A | Control Panel;
Driver assistance 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 |