Used car guide

2014 Audi A8 diesel: common problems and MOT failures

What MOT testers find on the diesel Audi A8 first registered in 2014 (diesel cars only): we looked at the 2,320 MOTs these cars had during 2023–2025. Plus known faults and what to look at before you buy one.

2,320MOTs of 2014 diesel cars, done in 2023–2025
91%pass first time (all 2014 cars: 70%)
9,600typical miles a year
20%had tyres flagged

Common 2014 Audi A8 diesel MOT failures and advisories

The share of 2014 Audi A8 diesel MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.

  • Tyres
    20% 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.

  • Suspension
    9% 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.

  • 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.

  • 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.

  • Oil and fluid leaks
    2% of testsRough price £80–£600

    At the viewing: Look under the engine and on the ground where the car is usually parked for fresh oil or fluid.

Questions to ask the seller before buying a 2014 Audi A8 diesel

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 an Audi A8?

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 A8 compared

YearMOT testsMost flagged
2026–Too new for MOT data
2025–Too new for MOT data
2024–Too new for MOT data
2023279Tyres 8%
2022272Tyres 15%
2021590Tyres 16%
20201,198Tyres 18%
20192,195Tyres 18%
20182,898Tyres 19%
20171,990Tyres 20%
20162,680Tyres 20%
20152,877Tyres 20%
20132,168Tyres 23%
20122,170Tyres 23%
20112,135Tyres 24%
20101,391Suspension 27%
20091,149Tyres 25%
20082,004Tyres 26%
20071,669Tyres 30%
20061,148Tyres 27%
20051,005Tyres 30%
2004618Suspension 32%
2003337Tyres 30%
2002303Suspension 32%
2001274Suspension 38%
2000196Suspension 44%
1999165Suspension 40%
1998134Suspension 50%
1997–Too few tests
1996–Too few tests
1995–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 A8 cars first registered in 2014. "Flagged" includes advisories, so it isn't the same as a fail rate. How we score