Used car guide

2020 Ford Mustang: common problems and MOT failures

What MOT testers find on the Ford Mustang first registered in 2020: we looked at the 1,073 MOTs these cars had during 2025. Plus known faults and what to look at before you buy one.

1,073MOTs of 2020 cars, done in 2025
87%pass first time (all 2020 cars: 86%)
4,300typical miles a year
22%had tyres flagged

Common 2020 Ford Mustang MOT failures and advisories

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

  • Tyres
    22% 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
    12% 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
    5% of testsRough price £15–£250

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

  • 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.

  • Suspension
    1% 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.

  • Seats and seatbelts
    1% of testsRough price £80–£250

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

Questions to ask the seller before buying a 2020 Ford Mustang

Ask before you travel to see it. A seller who knows the car will have answers, and receipts.

  1. Can I see the service history and receipts for any big jobs?

Looking at a Ford Mustang?

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

Other years

Every year of the Ford Mustang compared

YearMOT testsMost flagged
2026–Too new for MOT data
2025–Too new for MOT data
2024–Too new for MOT data
2023115Tyres 20%
20225,060Tyres 25%
20213,119Tyres 26%
20191,226Tyres 19%
20182,115Tyres 23%
20171,873Tyres 23%
20162,533Tyres 24%
2015335Tyres 22%
2014105Brakes 12%
2013110Tyres 14%
2012–Too few tests
2011–Too few tests
2010104Brakes 15%
2009–Too few tests
2008212Suspension 25%
2007297Suspension 24%
2006259Suspension 25%
2005324Suspension 25%
2004–Too few tests
1978–Too few tests
1972–Too few tests

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