Hello everyone, how are you guys? The discussion this time is about the BMW 1 series F20/F21. Produced in 2012, 2013, 2014, 2015, 2016, 2017. Check out this review for more details!
BMW 1-Series History
The subcompact automobiles BMW F20 (5-door hatchback) and BMW F21 (3-door hatchback) are part of the second generation of the BMW 1 Series. From 2011 through 2019, BMW developed the F20/F21 generation, which is frequently referred to as the F20.
The coupé and convertible variants of the BMW 1 Series’ second generation were sold separately under the new BMW 2 Series moniker. Initially, inline-four gasoline, inline-four diesel, and inline-six gasoline engines were used to power the F20/F21. Inline-three gasoline and diesel engines were added to the model lineup in 2015. Every engine has a turbocharger.
The F20/F21 utilises rear-wheel drive (rather than front-wheel drive) for the majority of versions, in contrast to most hatchback rivals. The first 1 Series to offer an optional all-wheel drive is the F20/F21.
BMW 1-Series BDC (Body Domain Controller)
BMW 1-Series (F20/F21) – fuse box diagram – BDC (Body Domain Controller)
| Number | Description | ||
| 1 | 54-pin connector | ||
| 2 | 12-pin connector | ||
| 3 | 42-pin connector | ||
| 4 | 54-pin connector | ||
| 5 | Fuses | ||
| 6 | Connector (1-pin, positive) | ||
| 7 | Relays | ||
| 8 | 54-pin connector | ||
| 9 | 54-pin connector | ||
| 10 | 54-pin connector | ||
| Fuses | Relays | ||
| Switching center in the steering column (SZL) | Electric windows | ||
| Control panel for driver assistance systems | Central locking | ||
| Lighting control panel | Headlight washers | ||
| LED headlights | Starter | ||
| Rear electronic module (REM) | Horn | ||
| Connector OBDII, IHKA | Windshield wiper at 1/2 speed | ||
| Electronic block of external door handle | |||
| Window lifter | |||
| Central locking | |||
BMW 1-Series Engine Compartment
BMW 1-Series (F20/F21) – fuse box diagram – engine compartment
| Number | Ampere |
| 18 | 15 |
| 19 | 10 |
| 20 | 5 |
| 21 | 5 |
| 22 | 7,5 |
| 23 | 10 |
| 24 | 10 |
| 25 | 5 |
| 26 | 5 |
| 27 | 10 |
| 28 | 5 |
| 29 | 5 |
| 30 | – |
| 31 | 7,5 |
| 32 | 5 |
| 33 | 10 |
| 34 | 10 |
| 35 | – |
| 36 | 40 |
| 37 | 40 |
| 38 | – |
| 39 | – |
| 40 | 15 |
| 41 | 10 |
| 42 | 5 |
| 43 | 15 |
| 44 | 5 |
| 45 | 5 |
| 46 | 5 |
| 47 | 5 |
| 48 | 10 |
| 49 | – |
| 50 | 5 |
| 51 | – |
| 52 | 7,5 |
| 53 | 5 |
| 54 | 7,5 |
| 55 | 5 |
| 56 | 5 |
| 57 | 40 |
| 58 | 30 |
| 59 | – |
| 60 | – |
| 61 | – |
| 62 | 30 |
| 63 | 30 |
| 64 | 20 |
| 65 | 20 |
| 65 | 20 |
| 66 | 20 |
| 67 | 30 |
| 68 | 30 |
| 69 | 20 |
| 70 | 20 |
BMW 1-Series Luggage Compartment
BMW 1-Series (F20/F21) – fuse box diagram – luggage compartment
| Number | Ampere |
| 80 | 30 |
| 82 | 20 |
| 83 | 30 |
| 85 | 7,5 |
| 100 | 15 |
| 101 | – |
| 102 | – |
| 103 | 5 |
| 104 | 5 |
| 105 | |
| 106 | 40 |
| 107 | 40 |
| 108 | – |
| 109 | – |
| 110 | – |
| 111 | – |
| 112 | – |
| 123 | 20 |
| 124 | 20 |
| 115 | – |
| 116 | 30 |
| 117 | 30 |
| 118 | – |
| 119 | – |
| 120 | 5 |
| 121 | 20 |
| 122 | 30 |
| 123 | 40 |
| 124 | 5 |
| 125 | 5 |
| 126 | 10 |
| 127 | 5 |
| 128 | 5 |
| 130 | 5 |
| 131 | – |
| 132 | 5 |
| 133 | – |
| 134 | – |
| 135 | 5 |
| 136 | – |
| 137 | 20 |
| 138 | – |
| 139 | 20 |
| 140 | 20 |
| 141 | 20 |
| 142 | 30 |
| 143 | 5 |
| 144 | 10 |
| 145 | 15 |
| 146 | 5 |
| 147 | 5 |
| 148 | 5 |
| 149 | 7,5 |
| 150 | 5 |
| 151 | 5 |
| 152 | 5 |
| 153 | 5 |
| 154 | 5 |
| 155 | 15 |
| 156 | – |
| 157 | – |
| 158 | – |
| 159 | 5 |
| 160 | 20 |
| 161 | 20 |
| 162 | 20 |
| 163 | 20 |
| 164 | 20 |
| 165 | 20 |
| 166 | – |
Conclusion
BMW F20/F21 In 2015, inline-three petrol and diesel engines were added to the model lineup. All turbocharged engines. The F20/F21 uses rear-wheel drive (not front-wheel drive) for most models. The F20/F21 is the first Series 1 to offer an optional all-wheel drive called “xDrive” by BMW. May be useful!
