The BMW F20/F21 is the second generation of the 1 Series five-door compact hatchback. Like its predecessor, it has rear-wheel drive, a longitudinal engine and a 50:50 weight distribution. In this material, we will analyze in detail the fuse diagrams of the BMW 1 series (2nd generation: 144d, 114i, 116d, 116i, 118d, 118i, 120d, 120i, 123d, 125i, 130i, 135i, m135i ) in the f20 / f21 body: 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 release.
Here you will find the locations and photos of the fuse blocks. Separately, we note the element responsible for the cigarette lighter.
In the passenger compartment
The mounting block is located on the passenger side under the trim of the right pillar.
Photo is an example.
| Diagram | ||
|---|---|---|
|
||
| No. | Decryption | A |
| 1 | Spare | — |
| 2 | Spare | — |
| 3 | Spare | — |
| 4 | Power passenger seat | 30 |
| 5 | central locking | 20 |
| 6 | Driver's window lift | 30 |
| 7 | Spare | |
| 8 | Spare | — |
| 9 | Spare | — |
| 10 | Control Panel | 5 |
| Driver assistance system | ||
| Heating, ventilation and air conditioning (HVAC) | ||
| Light switch | ||
| 11 | Rear module | 7.5 |
| Left headlight | ||
| 12 | Diagnostic socket | 7.5 |
| 13 | telematics | 5 |
| 14 | Signal | 15 |
In the trunk
Located on the right side under the floor, near the battery.
General view.
| Diagram | ||
|---|---|---|
|
||
| No. | Decryption | A |
| 1 | Camera control unit | 5 |
| 2 | Radio control unit | 15 |
| 6 | Audio system | 5 |
| 9 | telematics | 5 |
| 10 | Radio control unit | 20 |
| 11 | hi-fi amplifier | 30 |
| 14 | Trailer towing module | 20 |
| 15 | 20 | |
| 22 | Signaling | 5 |
| Microwave sensor | ||
| 23 | remote control receiver | 5 |
| Vacuum leak detection | ||
| 33 | Audio system | 10 |
| 34 | DVD player | 5 |
| 35 | Main board | 5 |
| 46 | End connector | 20 |
| 49 | DC-DC Converter | 30 |
In the engine compartment
The main unit is located under a plastic cover on the right side (for right-hand drive models - on the left side). An additional relay block is placed near it, as well as a power board with fusible links.
General form.
| Diagram | ||
|---|---|---|
|
||
| No. | Decryption | A |
| 1 | — | |
| 2 | — | |
| 3 | Control unit, roof electronics | 5 |
| 4 | — | |
| 5 | Door locks | 7.5 |
| Passenger Rear View Mirror | ||
| 6 | The engine control unit | 10 |
| 7 | Electronic automatic transmission (EAT) control unit | 10 |
| 8 | touch box | 5 |
| Body control unit | ||
| 9 | — | |
| 10 | Seat adjustment | 10 |
| 11 | Front left lamp | 5 |
| Front right lamp | ||
| Rain sensor | ||
| Interior lighting | ||
| 12 | trip relay | 5 |
| Dynamic Stability Control (DSC) | ||
| 13 | — | |
| 14 | — | |
| 15 | transfer case | 5 |
| 16 | coolant pump | 10 |
| Air conditioning compressor | ||
| Additional water pump | ||
| 17 | ||
| 18 | — | |
| 19 | Electrochromic rear view mirror | 5 |
| 20 | — | |
| 21 | Driver assistance system | 5 |
| 22 | Cruise control | 5 |
| 23 | Crankcase ventilation heater | 5 |
| Coolant shut-off valve | ||
| 24 | — | |
| 25 | Steering column switches | 10 |
| 26 | — | |
| 27 | instrument cluster | 5 |
| 28 | — | |
| 29 | instrument cluster | 7.5 |
| 30 | Glove compartment lighting | 5 |
| 31 | selector switch | 7.5 |
| 32 | Electronic Power Steering (EPS) | 5 |
| 33 | Air quality sensor | 5 |
| 34 39 |
— | |
| 40 | Fuse box | 40 |
| 41 | Dynamic Stability Control (DSC) | 30 |
| 42 44 |
— | |
| 45 | retractable roof | 30 |
| 46 | transfer case | 30 |
| 47 | Passenger seat heating | 20 |
| 48 | Heated driver's seat | 20 |
| 49 | BMW f20/f21 cigarette lighter fuse | 20 |
| 50 | Driver's seat control unit | 30 |
| Driver seat adjustment | ||
| 51 | Passenger seat adjustment | 30 |
| Passenger seat control unit | ||
| 52 | 12V | |
| 53 | — | |
| Auxilary panel (located next to the main) | ||
|---|---|---|
|
||
| No. | Decryption | A |
| 1 | Engine management | 20 |
| 2 | 20 | |
| 3 | 10 | |
| 4 | 15 | |
| 5 | 20 | |
| 6 | 40 | |
| 7 | coolant pump | 50 |
| R1 | Main relay DDE | |
Power fuses
Located near the main fuse box.
| Diagram | ||
|---|---|---|
|
||
| No. | Description | A |
| FL1 | Trip relay | 50 80 125 |
| FL2 | Electronic Power Steering (EPS) | 125 |
| FL3 | Additional heater | 100 |
| FL4 | Heated fuel filter | 40 |
| FL5 | Dynamic Stability Control (DSC) | 40 |
| FL6 | blower motor | 40 |
Additional fuse box
Located on the left side of the engine compartment.
| Diagram | ||
|---|---|---|
|
||
| No. | Purpose | A |
| 1 | Rail pressure control valve | 20 |
| Fuel volume regulator | ||
| Camshaft position sensor | ||
| Boost pressure control solenoid | ||
| 2 | Oxygen sensor before catalytic converter | 20 |
| Oxygen sensors behind the catalytic converter | ||
| Mass flow meter | ||
| Oil level sensor | ||
| EGR cooler changeover valve | ||
| 3 | DDE control unit | 30 |
| R1 | Main relay DDE | |
