Used car guide

2014 Audi RS6: common problems and what to check

What gets flagged at MOT on 2014 Audi RS6s, from 106 tests in 2025, plus known faults and what to look at before you buy one.

Small sample: only 106 of these were MOT tested in 2025, so treat the percentages as rough. The known faults below don't depend on it.

106MOT tests in 2025
87%pass first time (all 2014 cars: 69%)
6,800typical miles a year
20%had tyres flagged

What gets flagged at MOT

The share of 2014 Audi RS6 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
    11% 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
    8% 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.

  • Exhaust and emissions
    5% 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 engine or DPF warning lights.

  • 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
    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.

Known faults

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.

  • Automatic gearbox failure (high mileage)
    Multitronic and S tronic automatic

    Both the Multitronic and S tronic automatics can fail on high-mileage cars, and a replacement is a four-figure job.

    At the viewing: Drive in traffic and on the open road, and check for slipping, jerks or hesitation.

    Source: Carbuyer: used Audi A6 buying guide (2011-2018)

  • Oil use (diesel)
    Diesel

    The diesels can use a lot of oil. A low level can also point to poor maintenance.

    At the viewing: Check the dipstick shows full.

    Source: Carbuyer: used Audi A6 buying guide (2011-2018)

  • Brake recall (built 2012 to Aug 2014)
    Built 2012 to Aug 2014

    Oil could get into the braking system on cars built from 2012 to August 2014, reducing braking. There was a recall.

    At the viewing: Ask for proof the recall was done.

    Source: Carbuyer: used Audi A6 buying guide (2011-2018)

  • Fuel gauge and parking brake glitches
    All engines

    The fuel gauge can read empty with a full tank, and the electronic parking brake can refuse to release. A software update fixes both.

    At the viewing: Check the fuel gauge and that the parking brake releases cleanly.

    Source: Carbuyer: used Audi A6 buying guide (2011-2018)

  • Water in the rear lights
    All engines

    Water can get into the rear light units, and new ones are expensive.

    At the viewing: Look for condensation inside the rear lights.

    Source: Carbuyer: used Audi A6 buying guide (2011-2018)

Looking at an Audi RS6?

Check the actual car: its own MOT history, mileage and what to ask the seller. Free, no sign-up.

Other years

YearMOT testsMost flagged
2008186Suspension 21%

Where this comes from: the DVSA's anonymised results for every MOT test in Great Britain in 2025, counting tests of 2014 Audi RS6s registered in 2014. "Flagged" includes advisories, so it isn't the same as a fail rate. How we score