Part of the Audi A4 B8 (2008–2015) guide: best and worst years compared.

Part of the Audi A4 B9 (2015–2024) guide: best and worst years compared.

Used car guide

2015 Audi A4 petrol: common problems and MOT failures

What MOT testers find on the petrol Audi A4 first registered in 2015 (petrol cars only): we looked at the 6,256 MOTs these cars had during 2023–2025. Plus known faults and what to look at before you buy one.

6,256MOTs of 2015 petrol cars, done in 2023–2025
83%pass first time (all 2015 cars: 74%)
7,200typical miles a year
26%had tyres flagged

Common 2015 Audi A4 petrol MOT failures and advisories

The share of 2015 Audi A4 petrol MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.

  • Tyres
    26% 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.

  • Suspension
    17% 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.

  • Brakes
    16% 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
    5% of testsRough price £10–£80

    At the viewing: Ask a friend to check every light, including brake lights and indicators, while you operate them.

  • 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.

  • Exhaust and emissions
    2% of testsRough price £100–£1,200

    At the viewing: Look for black soot in the tailpipe, listen for blowing from the exhaust and check for an engine warning light.

Known faults on the 2015 Audi A4 petrol

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.

Questions to ask the seller before buying a 2015 Audi A4 petrol

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 A4?

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 A4 compared

YearMOT testsMost flagged
2026–Too new for MOT data
2025–Too new for MOT data
2024–Too new for MOT data
2023362Tyres 19%
20227,043Tyres 28%
202114,494Tyres 28%
202025,381Tyres 28%
201939,575Tyres 30%
201840,399Tyres 28%
201763,211Tyres 28%
201665,764Tyres 29%
201450,261Tyres 31%
201347,748Tyres 32%
201240,105Tyres 33%
201141,085Suspension 39%
201038,856Suspension 40%
200938,253Suspension 41%
200845,736Suspension 47%
200745,101Suspension 48%
200638,799Suspension 50%
200522,925Suspension 49%
200419,785Suspension 50%
200311,574Suspension 52%
20026,124Suspension 54%
20012,778Suspension 48%
20002,815Suspension 45%
19992,189Suspension 46%
19981,448Suspension 45%
1997812Suspension 49%
1996551Suspension 46%
1995174Brakes 40%

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 A4 cars first registered in 2015. "Flagged" includes advisories, so it isn't the same as a fail rate. How we score