Used car guide

2019 Audi S6: common problems and MOT failures

What MOT testers find on the Audi S6 first registered in 2019: we looked at the 295 MOTs these cars had during 2023–2025. Plus known faults and what to look at before you buy one.

Small sample: there were only 295 MOTs of these cars during 2023–2025, so treat the percentages as rough. The known faults below don't depend on it.

295MOTs of 2019 cars, done in 2023–2025
91%pass first time (all 2019 cars: 85%)
9,500typical miles a year
18%had tyres flagged

Common 2019 Audi S6 MOT failures and advisories

The share of 2019 Audi S6 MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.

  • Tyres
    18% 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
    5% 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.

  • Suspension
    5% 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
    4% of testsRough price £80–£250

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

  • Wipers, windscreen and mirrors
    3% 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.

Known faults on the 2019 Audi S6

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.

  • Electrical and infotainment faults

    All engines

    It came last of 24 executive cars in What Car?'s survey: 44% had a fault, about two-thirds electrical or infotainment (phones not connecting, flickering screens), and nearly half took over a week to fix.

    At the viewing: Connect your phone, use the screens, and check every electrical item.

    Source: What Car?: used Audi A6 (2018 on) reliability

  • Rattles and trim buzzes

    All engines

    Rattling parcel shelves and buzzing trim are reported.

    At the viewing: Drive on a rough road and listen.

    Source: What Car?: used Audi A6 (2018 on) reliability

Questions to ask the seller before buying a 2019 Audi S6

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

  1. What has been fixed under warranty, and has the software been updated?
  2. Can I see the service history and receipts for any big jobs?

Looking at an Audi S6?

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 S6 compared

YearMOT testsMost flagged
2026–Too new for MOT data
2025–Too new for MOT data
2024–Too new for MOT data
2023–Too new for MOT data
2022–Too few tests
2021–Too few tests
2020174Tyres 22%
2018–Too few tests
2017–Too few tests
2016–Too few tests
2015–Too few tests
2014–Too few tests
2013–Too few tests
2012–Too few tests
2010–Too few tests
2009–Too few tests
2008–Too few tests
2007–Too few tests
2006100Lights and electrics 28%
2003–Too few tests
2002–Too few tests
2001–Too few tests
2000–Too few tests
1997–Too few tests
1996–Too few tests
1995–Too few tests
1994–Too few tests

Where this comes from: the DVSA's anonymised results for every MOT test done in Great Britain during 2023–2025, counting the MOTs of Audi S6 cars first registered in 2019. "Flagged" includes advisories, so it isn't the same as a fail rate. How we score