Used car guide

2021 Audi Q7: common problems and MOT failures

What MOT testers find on the Audi Q7 first registered in 2021: we looked at the 3,146 MOTs these cars had during 2025. Plus known faults and what to look at before you buy one.

3,146MOTs of 2021 cars, done in 2025
89%pass first time (all 2021 cars: 87%)
9,800typical miles a year
1.9×the usual rate for nail or damage in a tyre

What goes wrong more than usual on a 2021 Audi Q7?

Parts flagged at MOT more often on the 2021 Audi Q7 than on all cars registered in 2021.

  • Nail or damage in a tyre1.9× usual
    Audi Q7
    4% All 2021 cars
    2.1%

    Failed outright at MOT: 0%, against 0% of all 2021 cars. The rest were advisories or minor defects.

    Rough price £70–£150 our estimate

    At the viewing: Check the tread on all four tyres, including the inside edges. Uneven wear can point to tracking or suspension problems.

  • Number plates2.5× usual
    Audi Q7
    2% All 2021 cars
    0.8%

    Failed outright at MOT: 0.5%, against 0.2% of all 2021 cars. The rest were advisories or minor defects.

    Rough price £5–£40 our estimate

    At the viewing: Check the number plate lights work and the plates are clean and legal.

Common 2021 Audi Q7 MOT failures and advisories

The share of 2021 Audi Q7 MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.

  • Tyres
    24% 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
    14% 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.

  • Seats and seatbelts
    5% of testsRough price £80–£250

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

  • 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
    3% 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
    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.

Known faults on the 2021 Audi Q7

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.

  • Below-par reliability

    All engines

    The Q7 scored just 74% in What Car?'s reliability survey, and parts are expensive.

    At the viewing: Get a full inspection, test every electrical item and check the VIN for outstanding recalls.

    Source: What Car?: used Audi Q7 (2015 on) review

Questions to ask the seller before buying a 2021 Audi Q7

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

  1. What has gone wrong and been fixed, and is there a full history?
  2. Any recent work on the nail or damage in a tyre? (Flagged at MOT 1.9× as often on the 2021 Audi Q7 as on other cars the same age.)
  3. Any recent work on the number plates? (Flagged at MOT 2.5× as often on the 2021 Audi Q7 as on other cars the same age.)
  4. Can I see the service history and receipts for any big jobs?

Looking at an Audi Q7?

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 Audi Q7 compared

YearMOT testsMost flagged
2026–Too new for MOT data
2025–Too new for MOT data
2024–Too new for MOT data
2023116Tyres 16%
20223,209Tyres 26%
20203,591Tyres 25%
20194,443Tyres 26%
20184,695Tyres 26%
20175,195Tyres 25%
20164,755Tyres 24%
20153,159Tyres 26%
20143,121Tyres 30%
20133,083Tyres 30%
20122,217Tyres 30%
20111,681Tyres 30%
20101,346Tyres 34%
20091,131Tyres 31%
20081,847Tyres 34%
20072,484Tyres 35%
2006953Suspension 34%

Where this comes from: the DVSA's anonymised results for every MOT test done in Great Britain during 2025, counting the MOTs of Audi Q7 cars first registered in 2021. "Flagged" includes advisories, so it isn't the same as a fail rate. How we score