Used car guide

2020 BMW X3: common problems and what to check

What gets flagged at MOT on 2020 BMW X3s, from 7,575 tests in 2025, plus known faults and what to look at before you buy one.

7,575MOT tests in 2025
89%pass first time (all 2020 cars: 86%)
8,300typical miles a year
23%had tyres flagged

What gets flagged at MOT

The share of 2020 BMW X3 MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.

  • Tyres
    23% 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.

  • Brakes
    7% 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 mirrors
    6% of testsRough price £15–£250

    At the viewing: Check for chips in the driver's view, and test the wipers and washers.

  • Seats and seatbelts
    3% of testsRough price £80–£250

    At the viewing: Pull each seatbelt sharply. It should lock, and retract cleanly.

  • Suspension
    2% 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.

  • Lights and electrics
    2% of testsRough price £10–£80

    At the viewing: Ask a friend to check every light, including brake lights and indicators, while you operate them.

Looking at a BMW X3?

Check the actual car: its own MOT history, mileage and what to ask the seller. Free, no sign-up.

Other years

YearMOT testsMost flagged
20227,442Tyres 21%
202110,679Tyres 23%
201915,680Tyres 24%
20188,148Tyres 25%
20178,054Tyres 26%
20168,948Tyres 27%
20157,025Tyres 26%
20146,052Tyres 28%
20137,109Tyres 28%
20126,659Suspension 29%
20113,844Suspension 30%
2010818Suspension 31%
20091,181Suspension 31%
20081,257Suspension 33%
20071,787Suspension 40%
20062,382Suspension 40%
20052,022Suspension 45%
20041,719Oil and fluid leaks 42%

Where this comes from: the DVSA's anonymised results for every MOT test in Great Britain in 2025, counting tests of 2020 BMW X3s registered in 2020. "Flagged" includes advisories, so it isn't the same as a fail rate. How we score