Used car guide

2021 MINI John Cooper Works: common problems and MOT failures

What MOT testers find on the MINI John Cooper Works first registered in 2021: we looked at the 2,687 MOTs these cars had during 2025. Plus known faults and what to look at before you buy one.

2,687MOTs of 2021 cars, done in 2025
91%pass first time (all 2021 cars: 87%)
6,300typical miles a year
22%had tyres flagged

Common 2021 MINI John Cooper Works MOT failures and advisories

The share of 2021 MINI John Cooper Works 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
    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.

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

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

  • 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.

Known faults on the 2021 MINI John Cooper Works

Reported by owners, mechanics and buying guides for this model and age. Check which engine the car has, as some apply to one engine only.

  • Clutch hydraulics and pedal spring

    Manual gearbox

    On manual cars the clutch can play up, either from the hydraulics or the pedal return spring.

    At the viewing: Feel the clutch pedal on the test drive: it should be smooth and come back up fully.

    If it needs doing: Clutch replacement, about £250–£600. ClickMechanic

    Source: Auto Express: used MINI Mk3 buyer's guide

  • Jumping out of gear

    Manual gearbox

    Some cars jump out of gear, usually first gear at low speed. Adjusting the gear linkage usually fixes it.

    At the viewing: Pull away in first several times and check it stays in gear.

    Source: Auto Express: used MINI Mk3 buyer's guide

  • Paint worn at the door pillar

    All engines

    Door rubbers can wear through the paint on the pillar behind the front doors.

    At the viewing: Open the doors and check the paint on the pillar.

    Source: Auto Express: used MINI Mk3 buyer's guide

Questions to ask the seller before buying a 2021 MINI John Cooper Works

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

  1. Has the clutch or its hydraulics had any work?
  2. Has the gear linkage been adjusted?
  3. Has any paintwork been done?
  4. Can I see the service history and receipts for any big jobs?

Looking at a MINI John Cooper Works?

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 MINI John Cooper Works compared

YearMOT testsMost flagged
2026–Too new for MOT data
2025–Too new for MOT data
2024–Too new for MOT data
2023158Tyres 6%
20222,514Tyres 20%
20203,082Tyres 23%
20192,715Tyres 25%
20182,890Tyres 26%
20173,028Tyres 24%
20162,040Tyres 27%
20151,658Tyres 24%
2014347Tyres 29%
2013824Suspension 22%
2012279Tyres 23%
2011114Tyres 26%
2010–Too few tests
2009–Too few tests
2008–Too few tests
2007–Too few tests
2006–Too few tests
2005–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 MINI John Cooper Works cars first registered in 2021. "Flagged" includes advisories, so it isn't the same as a fail rate. How we score