2020 BMW 120: common problems and what to check
What gets flagged at MOT on 2020 BMW 120s, from 621 tests in 2025, plus known faults and what to look at before you buy one.
What gets flagged at MOT
The share of 2020 BMW 120 MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.
- Tyres25% of testsRough price £70–£150
At the viewing: Check the tread on all four tyres, including the inside edges, and look for cracks or bulges.
- Brakes11% of testsRough price £150–£350
At the viewing: Look for a lip on the disc edges and feel for judder or pulling when braking firmly from about 40mph.
- Wipers, windscreen and mirrors3% of testsRough price £15–£250
At the viewing: Check for chips in the driver's view, and test the wipers and washers.
- Lights and electrics3% of testsRough price £10–£80
At the viewing: Ask a friend to check every light, including brake lights and indicators, while you operate them.
- Seats and seatbelts2% of testsRough price £80–£250
At the viewing: Pull each seatbelt sharply. It should lock, and retract cleanly.
- Suspension2% of testsRough price £120–£400
At the viewing: Listen for knocks over speed bumps, and look behind each front wheel for a snapped coil spring.
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Other years
| Year | MOT tests | Most flagged |
|---|---|---|
| 2019 | 642 | Tyres 26% |
| 2018 | 1,396 | Tyres 28% |
| 2017 | 2,316 | Tyres 27% |
| 2016 | 3,349 | Tyres 27% |
| 2015 | 3,584 | Tyres 29% |
| 2014 | 2,942 | Tyres 32% |
| 2013 | 2,330 | Tyres 31% |
| 2012 | 2,386 | Tyres 34% |
| 2011 | 3,160 | Tyres 36% |
| 2010 | 3,451 | Suspension 39% |
| 2009 | 2,909 | Suspension 40% |
| 2008 | 3,328 | Brakes 45% |
| 2007 | 1,964 | Brakes 47% |
| 2006 | 1,752 | Brakes 54% |
| 2005 | 1,712 | Brakes 50% |
| 2004 | 534 | Brakes 47% |
Where this comes from: the DVSA's anonymised results for every MOT test in Great Britain in 2025, counting tests of 2020 BMW 120s registered in 2020. "Flagged" includes advisories, so it isn't the same as a fail rate. How we score