Used car guide

2021 Audi E-Tron: common problems and what to check

What gets flagged at MOT on 2021 Audi E-Trons, from 7,094 tests in 2025, plus known faults and what to look at before you buy one.

7,094MOT tests in 2025
90%pass first time (all 2021 cars: 87%)
9,400typical miles a year
1.7×the usual rate for nail or damage in a tyre

What stands out

Parts flagged at MOT more often on 2021 Audi E-Trons than on all cars registered in 2021.

  • Nail or damage in a tyre1.7× usual
    Audi E-Tron
    3.6% 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.

Better than most

Brake pads: 0.4% here, against 6.8% of all 2021 cars. Brake discs: 2.2% here, against 7.1% of all 2021 cars.

By area

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

  • Tyres
    27% 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.

  • Seats and seatbelts
    4% of testsRough price £80–£250

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

  • Wipers, windscreen and mirrors
    4% of testsRough price £15–£250

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

  • Brakes
    3% 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.

  • 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.

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Other years

YearMOT testsMost flagged
20225,932Tyres 31%
20205,223Tyres 29%
20191,015Tyres 29%

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