Common Audi TT faults, from MOT records

335,445 Audi TTs went through an MOT in the period we analysed, and 76.2% passed. Set against the 71.7% national pass rate, that is a good result on the raw numbers. Allowing for age, the TT beats a typical car tested at the same age by 11.5 points. That is the fairer test, and it puts the model well above average. At its first MOT, at three years old, 91.2% of TTs pass; the national figure for three-year-old cars is 87.9%. The most common reason for a fail is tyre tread below the legal minimum.

76.2%MOT pass rate, all years
+11.5points vs cars of the same age
335,445tests analysed
91.2%pass at first MOT, age 3

The TT's weak points

The TT's failures cluster around tyres and suspension: tyre tread below the legal minimum on 11.9% of fails, a broken coil spring on 7.1%. Percentages can add to more than 100 because one failed test often records several defects.

1Tyre: tread below the 1.6mm legal minimum11.9%
2Coil spring: fractured or broken7.1%
3Sidelight: not working6.5%
4Warning light: on, or not working4.8%
5Driveshaft joint: CV boot split4.5%
6Tyre: deep cut reaching the cords4.1%

A tyre fail usually means a tyre that was already an advisory last year. Worth looking at the previous certificate before booking.

Warning signs on the certificate

An advisory is the tester telling you what fails next year. On the TT the usual suspects are tyre tread below the legal minimum (15.9% of tests) and worn brake discs (9.5%). How often each category of advisory turns into a failure is measured across the whole dataset.

Tyre: tread below the 1.6mm legal minimum15.9%
Brake discs: seriously weakened9.5%
Tyre: sidewall tear or separation5.2%
Brake pipes: excessively corroded4%
Suspension bush: excessively worn3.9%

Does fuel type matter on a TT?

Among Audi TT cars, diesel versions pass 77.7% of the time and petrol versions 75.8%, so fuel makes little difference on this model.

FuelPass rateTests
Petrol75.8%278,636
Diesel77.7%56,728

Every TT year, 2000 to 2022

The oldest TTs on the road, from 2000, pass 59.2% of the time; the 2022 cars pass 91.6%. Read the table as an age curve first and a quality ranking second.

First usedPass rateTestsMiles a yearFirst MOT pass
Audi TT 202291.6%2,6686,57591.7%
Audi TT 202191.3%4,8326,42390.6%
Audi TT 202091.4%8,9536,16091.1%
Audi TT 201991.2%13,6266,037–
Audi TT 201889.8%12,2166,526–
Audi TT 201788.9%21,9606,528–
Audi TT 201687.8%27,2346,715–
Audi TT 201585.6%25,4876,840–
Audi TT 201483.1%11,7186,665–
Audi TT 201382.8%18,7346,579–
Audi TT 201280.9%16,5856,630–
Audi TT 201175.9%18,8986,734–
Audi TT 201072.3%19,0116,720–
Audi TT 200971.6%17,6296,581–
Audi TT 200868.4%21,0476,380–
Audi TT 200766.1%23,0976,188–
Audi TT 200661.3%8,5605,891–
Audi TT 200560.4%10,5735,374–
Audi TT 200459.8%13,5705,280–
Audi TT 200358.9%13,7635,261–
Audi TT 200258.5%12,0425,324–
Audi TT 200159%8,0845,148–
Audi TT 200059.2%5,1584,848–

Pass rate by mileage

On the 2016 cars, a TT under 40,000 miles passes 91.7% of the time; one over 100,000 passes 79.5%. When comparing two used TTs, the odometer tells you more than the year.

Mileage at test (2016 cars)Pass rateTests
Under 40,00091.7%7,869
40,000 to 60,00088.6%10,061
60,000 to 80,00085.2%6,033
80,000 to 100,00081.3%2,281
Over 100,00079.5%989

How the TT compares

Set against the rest of the Audi range, which averages 78.1%, the TT at 76.2% is below par. Within the family, see Audi A3 reliability (75.2%), Audi A4 MOT pass rate (72.8%), how the A1 does (77.2%) and Q3 common problems (83.3%), or Audi reliability by model. Buyers weighing a TT against other cars of similar popularity often compare it with the Ford Ranger (71.9%) and Hyundai i30 (65.1%). The full reliability table puts them side by side, and the statistics for all 98 million tests give the baseline.

Failure lists and mileage by year

Each year opens to show its own failure list and pass rate by mileage.

Audi TT 2022 91.6% pass 2,668 tests91.7% at first MOT

On a 2022 Audi TT, tyre tread below the legal minimum appears on 35.4% of failed tests, with a tyre worn or cut to the cords next at 17.9%.

Tyre: tread below the 1.6mm legal minimum35.4%
Tyre: deep cut reaching the cords17.9%
Tyre: bulge in the sidewall11.2%
Headlamp aim: too high7.2%
Tyre: cords exposed6.7%

2022 cars pass 91.8% of the time at under 40,000 miles, falling to 0% over 100,000.

Mileage at testPass rateTests
Under 40,00091.8%2,562
40,000 to 60,00087.2%94
60,000 to 80,000100%10
80,000 to 100,000100%1
Over 100,0000%1
Audi TT 2021 91.3% pass 4,832 tests90.6% at first MOT

On a 2021 Audi TT, tyre tread below the legal minimum appears on 29.9% of failed tests, with a tyre worn or cut to the cords next at 19.5%.

Tyre: tread below the 1.6mm legal minimum29.9%
Tyre: deep cut reaching the cords19.5%
Airbag warning light: warning lamp on11.9%
Tyre: cords exposed11.4%
Tyre: bulge in the sidewall6.7%

2021 cars pass 91.5% of the time at under 40,000 miles, falling to 100% over 100,000.

Mileage at testPass rateTests
Under 40,00091.5%4,453
40,000 to 60,00088.8%331
60,000 to 80,00085%40
80,000 to 100,000100%4
Over 100,000100%4
Audi TT 2020 91.4% pass 8,953 tests91.1% at first MOT

On a 2020 Audi TT, tyre tread below the legal minimum appears on 25.6% of failed tests, with a tyre worn or cut to the cords next at 16.3%.

Tyre: tread below the 1.6mm legal minimum25.6%
Tyre: deep cut reaching the cords16.3%
Airbag warning light: warning lamp on8.7%
Tyre: cords exposed8.4%
Tyre: bulge in the sidewall7.8%

2020 cars pass 91.8% of the time at under 40,000 miles, falling to 100% over 100,000.

Mileage at testPass rateTests
Under 40,00091.8%7,910
40,000 to 60,00087.9%893
60,000 to 80,00087.6%137
80,000 to 100,00081.8%11
Over 100,000100%2
Audi TT 2019 91.2% pass 13,626 tests

On a 2019 Audi TT, tyre tread below the legal minimum appears on 25% of failed tests, with a tyre worn or cut to the cords next at 14.8%.

Tyre: tread below the 1.6mm legal minimum25%
Tyre: deep cut reaching the cords14.8%
Brake pads: less than 1.5 mm thick9.3%
Tyre: cords exposed8.7%
Tyre: bulge in the sidewall7.2%

2019 cars pass 92.3% of the time at under 40,000 miles, falling to 86.7% over 100,000.

Mileage at testPass rateTests
Under 40,00092.3%10,519
40,000 to 60,00087.4%2,522
60,000 to 80,00087.1%498
80,000 to 100,00084.7%72
Over 100,00086.7%15
Audi TT 2018 89.8% pass 12,216 tests

On a 2018 Audi TT, tyre tread below the legal minimum appears on 25% of failed tests, with a tyre worn or cut to the cords next at 13%.

Tyre: tread below the 1.6mm legal minimum25%
Tyre: deep cut reaching the cords13%
Brake pads: less than 1.5 mm thick9.1%
Tyre: cords exposed6.4%
Tyre: bulge in the sidewall5.4%

2018 cars pass 92.2% of the time at under 40,000 miles, falling to 70.1% over 100,000.

Mileage at testPass rateTests
Under 40,00092.2%7,022
40,000 to 60,00088.2%3,769
60,000 to 80,00084.1%1,110
80,000 to 100,00078.5%247
Over 100,00070.1%67

By fuel: petrol 90% (11,378 tests), diesel 87.2% (838 tests).

Audi TT 2017 88.9% pass 21,960 tests

On a 2017 Audi TT, tyre tread below the legal minimum appears on 24% of failed tests, with a tyre worn or cut to the cords next at 11.9%.

Tyre: tread below the 1.6mm legal minimum24%
Tyre: deep cut reaching the cords11.9%
Brake pads: less than 1.5 mm thick10%
Number plate light: not working8.4%
Tyre: cords exposed8.1%

2017 cars pass 92% of the time at under 40,000 miles, falling to 80.1% over 100,000.

Mileage at testPass rateTests
Under 40,00092%9,482
40,000 to 60,00087.7%7,930
60,000 to 80,00085.3%3,255
80,000 to 100,00082.6%976
Over 100,00080.1%316

By fuel: petrol 89.4% (18,924 tests), diesel 85.7% (3,036 tests).

Audi TT 2016 87.8% pass 27,234 tests

On a 2016 Audi TT, tyre tread below the legal minimum appears on 20.8% of failed tests, with a number plate light not working next at 11.1%.

Tyre: tread below the 1.6mm legal minimum20.8%
Number plate light: not working11.1%
Tyre: deep cut reaching the cords9.7%
Brake pads: less than 1.5 mm thick7.5%
Tyre: cords exposed7.3%

2016 cars pass 91.7% of the time at under 40,000 miles, falling to 79.5% over 100,000.

Mileage at testPass rateTests
Under 40,00091.7%7,869
40,000 to 60,00088.6%10,061
60,000 to 80,00085.2%6,033
80,000 to 100,00081.3%2,281
Over 100,00079.5%989

By fuel: petrol 88.7% (21,210 tests), diesel 84.6% (6,024 tests).

Audi TT 2015 85.6% pass 25,487 tests

On a 2015 Audi TT, tyre tread below the legal minimum appears on 19% of failed tests, with a number plate light not working next at 13.4%.

Tyre: tread below the 1.6mm legal minimum19%
Number plate light: not working13.4%
Shock absorbers: leaking9.2%
Brake pads: less than 1.5 mm thick8.8%
Tyre: deep cut reaching the cords8.3%

2015 cars pass 90.6% of the time at under 40,000 miles, falling to 74.8% over 100,000.

Mileage at testPass rateTests
Under 40,00090.6%5,082
40,000 to 60,00087.9%8,159
60,000 to 80,00084.4%6,957
80,000 to 100,00080.8%3,402
Over 100,00074.8%1,887

By fuel: petrol 87.1% (17,273 tests), diesel 82.3% (8,214 tests).

Audi TT 2014 83.1% pass 11,718 tests

On a 2014 Audi TT, tyre tread below the legal minimum appears on 15% of failed tests, with wipers not clearing the screen next at 8.6%.

Tyre: tread below the 1.6mm legal minimum15%
Wiper: not clearing the screen8.6%
Brake pads: less than 1.5 mm thick7.5%
Brake light: not working6.5%
Tyre: cords exposed6.5%

2014 cars pass 90.4% of the time at under 40,000 miles, falling to 72.3% over 100,000.

Mileage at testPass rateTests
Under 40,00090.4%1,740
40,000 to 60,00085.8%3,315
60,000 to 80,00083%3,490
80,000 to 100,00078.5%1,993
Over 100,00072.3%1,180

By fuel: petrol 84.6% (7,702 tests), diesel 80.2% (4,016 tests).

Audi TT 2013 82.8% pass 18,734 tests

On a 2013 Audi TT, tyre tread below the legal minimum appears on 15.7% of failed tests, with a broken coil spring next at 7.8%.

Tyre: tread below the 1.6mm legal minimum15.7%
Coil spring: fractured or broken7.8%
Wiper: not clearing the screen7.8%
Brake pads: less than 1.5 mm thick6.9%
Brake light: not working6.7%

2013 cars pass 90.4% of the time at under 40,000 miles, falling to 76.3% over 100,000.

Mileage at testPass rateTests
Under 40,00090.4%2,130
40,000 to 60,00085.5%4,588
60,000 to 80,00082.4%5,350
80,000 to 100,00080.6%3,801
Over 100,00076.3%2,865

By fuel: petrol 83.8% (12,036 tests), diesel 80.9% (6,698 tests).

Audi TT 2012 80.9% pass 16,585 tests

On a 2012 Audi TT, tyre tread below the legal minimum appears on 15.4% of failed tests, with a broken coil spring next at 7.8%.

Tyre: tread below the 1.6mm legal minimum15.4%
Coil spring: fractured or broken7.8%
Brakes: binding7.7%
Wiper: not clearing the screen7.1%
Tyre: cords exposed6.6%

2012 cars pass 89.3% of the time at under 40,000 miles, falling to 74.5% over 100,000.

Mileage at testPass rateTests
Under 40,00089.3%1,368
40,000 to 60,00085.6%3,160
60,000 to 80,00081.7%4,366
80,000 to 100,00079.5%3,966
Over 100,00074.5%3,724

By fuel: petrol 81.6% (10,934 tests), diesel 79.7% (5,648 tests).

Audi TT 2011 75.9% pass 18,898 tests

On a 2011 Audi TT, a split ball joint dust cover appears on 12.7% of failed tests, with tyre tread below the legal minimum next at 12%.

Ball joint: dust cover split12.7%
Tyre: tread below the 1.6mm legal minimum12%
Coil spring: fractured or broken10.1%
Wiper: not clearing the screen7%
Tyre: cords exposed6%

2011 cars pass 87.7% of the time at under 40,000 miles, falling to 72.1% over 100,000.

Mileage at testPass rateTests
Under 40,00087.7%1,017
40,000 to 60,00081.3%2,723
60,000 to 80,00076.2%4,635
80,000 to 100,00074.8%4,530
Over 100,00072.1%5,989

By fuel: petrol 76.3% (12,650 tests), diesel 75.2% (6,248 tests).

Audi TT 2010 72.3% pass 19,011 tests

On a 2010 Audi TT, a split ball joint dust cover appears on 13.9% of failed tests, with tyre tread below the legal minimum next at 10.7%.

Ball joint: dust cover split13.9%
Tyre: tread below the 1.6mm legal minimum10.7%
Warning light: on, or not working9.2%
Coil spring: fractured or broken8.7%
Sidelight: not working8.4%

2010 cars pass 86.1% of the time at under 40,000 miles, falling to 67.7% over 100,000.

Mileage at testPass rateTests
Under 40,00086.1%841
40,000 to 60,00078.7%2,129
60,000 to 80,00074.9%3,990
80,000 to 100,00072.4%4,427
Over 100,00067.7%7,621

By fuel: petrol 73.4% (12,082 tests), diesel 70.6% (6,926 tests).

Audi TT 2009 71.6% pass 17,629 tests

On a 2009 Audi TT, a broken coil spring appears on 14.2% of failed tests, with a split ball joint dust cover next at 13%.

Coil spring: fractured or broken14.2%
Ball joint: dust cover split13%
Sidelight: not working11.2%
Warning light: on, or not working11%
Tyre: tread below the 1.6mm legal minimum9.1%

2009 cars pass 82% of the time at under 40,000 miles, falling to 67.6% over 100,000.

Mileage at testPass rateTests
Under 40,00082%605
40,000 to 60,00079%1,642
60,000 to 80,00075%3,140
80,000 to 100,00072.3%4,208
Over 100,00067.6%8,027

By fuel: petrol 73.3% (11,356 tests), diesel 68.5% (6,273 tests).

Audi TT 2008 68.4% pass 21,047 tests

On a 2008 Audi TT, a broken coil spring appears on 14.3% of failed tests, with a sidelight not working next at 12.7%.

Coil spring: fractured or broken14.3%
Sidelight: not working12.7%
Driveshaft joint: CV boot split12.7%
Warning light: on, or not working12.2%
Ball joint: dust cover split10.5%

2008 cars pass 83.8% of the time at under 40,000 miles, falling to 64.7% over 100,000.

Mileage at testPass rateTests
Under 40,00083.8%618
40,000 to 60,00077.3%1,674
60,000 to 80,00073.2%3,318
80,000 to 100,00068.2%4,928
Over 100,00064.7%10,503

By fuel: petrol 68.8% (18,240 tests), diesel 66% (2,807 tests).

Audi TT 2007 66.1% pass 23,097 tests

On a 2007 Audi TT, a broken coil spring appears on 15.6% of failed tests, with a sidelight not working next at 14.2%.

Coil spring: fractured or broken15.6%
Sidelight: not working14.2%
Warning light: on, or not working12.7%
Driveshaft joint: CV boot split10.9%
Ball joint: dust cover split9.4%

2007 cars pass 84.5% of the time at under 40,000 miles, falling to 62.3% over 100,000.

Mileage at testPass rateTests
Under 40,00084.5%619
40,000 to 60,00077.2%1,487
60,000 to 80,00071.8%3,257
80,000 to 100,00066.3%5,187
Over 100,00062.3%12,542
Audi TT 2006 61.3% pass 8,560 tests

On a 2006 Audi TT, a sidelight not working appears on 19.5% of failed tests, with a broken coil spring next at 15.5%.

Sidelight: not working19.5%
Coil spring: fractured or broken15.5%
Driveshaft joint: CV boot split15.2%
Warning light: on, or not working14.4%
Ball joint: dust cover split10.1%

2006 cars pass 86.4% of the time at under 40,000 miles, falling to 57% over 100,000.

Mileage at testPass rateTests
Under 40,00086.4%264
40,000 to 60,00069.4%523
60,000 to 80,00065.3%1,122
80,000 to 100,00064.5%1,830
Over 100,00057%4,818
Audi TT 2005 60.4% pass 10,573 tests

On a 2005 Audi TT, a sidelight not working appears on 21% of failed tests, with a broken coil spring next at 14.5%.

Sidelight: not working21%
Coil spring: fractured or broken14.5%
Warning light: on, or not working14.4%
Driveshaft joint: CV boot split13%
Airbag warning light: warning lamp on11.9%

2005 cars pass 83.3% of the time at under 40,000 miles, falling to 54.4% over 100,000.

Mileage at testPass rateTests
Under 40,00083.3%359
40,000 to 60,00073.6%947
60,000 to 80,00066.6%1,652
80,000 to 100,00060.6%2,396
Over 100,00054.4%5,217
Audi TT 2004 59.8% pass 13,570 tests

On a 2004 Audi TT, a dashboard warning light appears on 18.1% of failed tests, with a sidelight not working next at 17.9%.

Warning light: on, or not working18.1%
Sidelight: not working17.9%
Coil spring: fractured or broken12.4%
Driveshaft joint: CV boot split11.7%
Suspension bush: excessively worn11%

2004 cars pass 84.1% of the time at under 40,000 miles, falling to 54% over 100,000.

Mileage at testPass rateTests
Under 40,00084.1%434
40,000 to 60,00073.7%893
60,000 to 80,00066.1%1,892
80,000 to 100,00062.6%2,862
Over 100,00054%7,481
Audi TT 2003 58.9% pass 13,763 tests

On a 2003 Audi TT, a sidelight not working appears on 16.8% of failed tests, with a dashboard warning light next at 12.2%.

Sidelight: not working16.8%
Warning light: on, or not working12.2%
Driveshaft joint: CV boot split12.2%
Coil spring: fractured or broken11.7%
Suspension bush: excessively worn11.3%

2003 cars pass 83.5% of the time at under 40,000 miles, falling to 55.6% over 100,000.

Mileage at testPass rateTests
Under 40,00083.5%278
40,000 to 60,00072.7%718
60,000 to 80,00064.5%1,586
80,000 to 100,00059.6%2,839
Over 100,00055.6%8,329
Audi TT 2002 58.5% pass 12,042 tests

On a 2002 Audi TT, a split CV boot appears on 16.2% of failed tests, with a sidelight not working next at 14.6%.

Driveshaft joint: CV boot split16.2%
Sidelight: not working14.6%
Coil spring: fractured or broken12.9%
Driveshaft joint: CV boot perished10.7%
Suspension bush: excessively worn10.3%

2002 cars pass 82% of the time at under 40,000 miles, falling to 56.1% over 100,000.

Mileage at testPass rateTests
Under 40,00082%206
40,000 to 60,00074.6%562
60,000 to 80,00062.5%1,132
80,000 to 100,00059.2%1,994
Over 100,00056.1%8,135
Audi TT 2001 59% pass 8,084 tests

On a 2001 Audi TT, a split CV boot appears on 15% of failed tests, with a sidelight not working next at 14%.

Driveshaft joint: CV boot split15%
Sidelight: not working14%
Driveshaft joint: CV boot perished12.2%
Suspension bush: excessively worn11.1%
Emissions: lambda reading out of limits11%

2001 cars pass 81.6% of the time at under 40,000 miles, falling to 56.4% over 100,000.

Mileage at testPass rateTests
Under 40,00081.6%141
40,000 to 60,00073.8%320
60,000 to 80,00068.2%661
80,000 to 100,00059.5%1,384
Over 100,00056.4%5,568
Audi TT 2000 59.2% pass 5,158 tests

On a 2000 Audi TT, a split CV boot appears on 13.8% of failed tests, with a sidelight not working next at 12.7%.

Driveshaft joint: CV boot split13.8%
Sidelight: not working12.7%
ABS: ABS warning lamp on11.5%
Coil spring: fractured or broken11.3%
Driveshaft joint: CV boot perished10%

2000 cars pass 76.5% of the time at under 40,000 miles, falling to 54.8% over 100,000.

Mileage at testPass rateTests
Under 40,00076.5%102
40,000 to 60,00070.4%257
60,000 to 80,00069.1%475
80,000 to 100,00066.2%850
Over 100,00054.8%3,467

Questions people ask

Is the Audi TT reliable?

On MOT evidence the Audi TT is well above average. It passes 76.2% of tests against 71.7% for all cars, and beats cars of the same age by 11.5 points. 91.2% pass their first MOT at three years old. Figures from 335,445 DVSA tests.

What are the most common Audi TT MOT failures?

Tyre tread below the legal minimum (11.9% of failed tests), a broken coil spring (7.1%) and a sidelight not working (6.5%). A tyre fail usually means a tyre that was already an advisory last year. Worth looking at the previous certificate before booking.

Which Audi TT year is the most reliable?

Among years with a large sample, 2020 cars have the highest pass rate at 91.4% and 2002 cars the lowest at 58.5%. Newer years pass more because they are younger, so compare a specific car's year against the table above rather than against the overall figure.

What advisories does a Audi TT usually get?

Tyre tread below the legal minimum is the most frequent, noted on 15.9% of all TT tests, then worn brake discs (9.5%). An advisory passes the car today but marks the item most likely to fail next year.

How many miles a year does a Audi TT do?

About 6,284 miles a year on average, calculated from the odometer readings recorded at consecutive MOTs. That is close to the UK average of roughly 7,400.

How do I check a particular Audi TT?

The figures describe the whole fleet. For one car, enter its registration in the free MOT check to see its own test history, advisories and mileage, set against these averages for its year.

Checking a TT before you buy?

Enter the registration to see its own MOT history, advisories and mileage set against these figures, including whether it has done more or fewer than the 6,284 miles a year typical of the model.

Source: DVSA anonymised MOT tests and results, 2023 to 2025. Class 4 cars, normal tests only; a pass after rectification counts as an initial failure. Age-adjusted figures compare the model's pass rate at each age with the national rate at the same age. Methodology.