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Audi TT Mk3 (8S) (2014-2023) reliability

At a glance

Audi TT Mk3 (8S) built around 2018: about average at the MOT

Audi TT Mk3 (8S) models built around 2018 fail their MOT about as often as similar cars the same age.

Looking at an Audi TT Mk3 (8S) right now?

Enter its number plate to see its full MOT history, risk rating and running costs.

Key figure

10% of MOT tests on Audi TT Mk3 (8S) models built around 2018 ended in a fail (retests included), against 13% for similar cars the same age.

Most common issue

The most common MOT issue on Audi TT Mk3 (8S) models built around 2018 involves the tyres.

Audi TT Mk3 (8S)
excellent reliability2014-2023CoupePETROL / DIESEL

Based on 50,662 tests of TT models registered 2014-2023.

About 1 in 12 petrol TT cars registered in 2022 (8.5%) failed their first MOT.

Based on 2,384 first MOTs (DVSA MOT results, 2025).

About 1 in 50 TT Mk3 (8S) MOTs (1.8%) failed and still hadn't passed 3 days later. That's for cars built around 2018 (7 years old), all fuels combined.

Based on 6,783 tests (DVSA MOT results, 2025). A fail that passed a retest within 3 days, even the same day, isn't counted. Nor is a fail with no later MOT on record.

About 1 in 20 TT Mk3 (8S) MOTs (4.9%) found at least one dangerous defect. These are cars built around 2018 (7 years old).

Based on 6,783 tests (DVSA MOT results, 2025). Dangerous is the most serious grade an MOT gives: a direct risk to road safety.

Mk3 (8S) fail rate by age

Below typicalAbove typicalHigh (28% or more)Highest fail rateUK average for cars this age
Age / builtFail rateMOT tests
3 yearsbuilt around 2022
2,8617.3%
4 yearsbuilt around 2021
3,0247.7%
5 yearsbuilt around 2020
3,9418.1%
6 yearsbuilt around 2019
4,3879.1%
7 yearsbuilt around 2018
6,78310.4%
8 yearsbuilt around 2017
8,82810.6%
9 yearsbuilt around 2016
10,94711.8%
10 yearsbuilt around 2015
6,41413.9%
11 yearsbuilt around 2014
3,47716.9%

Fail rate is the share of MOT tests that ended in a fail. Retests count as tests. How we count fail rates Build years are worked out from age, so they are approximate. Tests counted are 2025 MOTs. Highest fail rate at 11 years old.

How the TT Mk3 (8S) compares

At each age below, see how the TT Mk3 (8S) holds up against other cars the same age. The averages combine all fuel types.

Based on 171,464 tests across 16 Audi models, built around 2018 (7 years old).

Below typicalAbove typicalHigh (28% or more)Highest fail rateAudi average
Age / builtFail rateMOT tests
3 yearsbuilt around 2022
2,8617.3%
4 yearsbuilt around 2021
3,0247.7%
5 yearsbuilt around 2020
3,9418.1%
6 yearsbuilt around 2019
4,3879.1%
7 yearsbuilt around 2018
6,78310.4%
8 yearsbuilt around 2017
8,82810.6%
9 yearsbuilt around 2016
10,94711.8%
10 yearsbuilt around 2015
6,41413.9%
11 yearsbuilt around 2014
3,47716.9%

Fail rate is the share of MOT tests that ended in a fail. Retests count as tests. How we count fail rates Build years are worked out from age, so they are approximate. Tests counted are 2025 MOTs.

What to check before viewing

The model's most common MOT issues, turned into things you can ask about or look for.

Brake discs

High priority

Ask for the date and mileage of the last disc replacement; visually check for a deep wear lip and rust pitting on each disc.

Brake pads

High priority

Ask when the pads were last replaced and check the warning-light history.

Tyres

Worth checking

Check tread depth across the full width on all four; uneven wear suggests alignment or suspension issues.

Vehicle-specific check

Worth checking

Check the car’s number plate on MOT Wise to see its own MOT history and any recalls for its build years.

Other coupes to compare

Other coupes, with each one's figures taken at the same age as the TT Mk3 (8S).

  1. 1

    Porsche 911

    Same body type, tested at the same age

    Fail rate
    5.3%
    Fail, no pass in 3 days
    1.4%
    Dangerous
    1.6%
    Still registered at 10 years
    94%

    Lower fail rate: 5.3%, against 10.4% for the Audi TT Mk3 (8S), both built around 2018.

    2,547 MOT tests on cars built around 2018

  2. 2

    Porsche Cayman

    Same body type, tested at the same age

    Fail rate
    5.5%
    Fail, no pass in 3 days
    1.3%
    Dangerous
    2.4%
    Still registered at 10 years
    93%

    Lower fail rate: 5.5%, against 10.4% for the Audi TT Mk3 (8S), both built around 2018.

    1,235 MOT tests on cars built around 2018

  3. 3

    Jaguar F-Type

    Same body type, tested at the same age

    Fail rate
    8.6%
    Fail, no pass in 3 days
    1.9%
    Dangerous
    2.4%
    Still registered at 10 years
    95.3%

    Fewer dangerous faults: 2.4%, against 4.9% for the Audi TT Mk3 (8S).

    2,085 MOT tests on cars built around 2018

  4. 4

    Ford Mustang

    Same body type, tested at the same age

    Fail rate
    14.8%
    Fail, no pass in 3 days
    4.9%
    Dangerous
    5.3%

    No clear edge over the Audi TT Mk3 (8S) on these figures.

    2,337 MOT tests on cars built around 2018

Fail rate
= the share of MOT tests that ended in a fail. Retests count as tests.
Fail, no pass in 3 days
= the share of MOT tests that failed and still hadn't passed 3 days later. A fail that passed a retest within 3 days, even the same day, isn't counted.
Dangerous
= the share of MOT tests where the tester marked a fault as dangerous. It is against the law to drive the car until it is fixed.
Still registered at 10 years
= the share of cars still registered (taxed or declared off the road) 10 years after they were first registered.

How many are still registered

96%of all Audi TT cars first registered in 2014 to 2015 were still registered 10 years later. This is the whole model, not only this generation.

UK average for cars first registered in 2014 to 2015: 92% · About typical

The share still registered can reflect demand, the cost of repairs, exports, write-offs and how owners use the car. It isn't proof of how long the car lasts mechanically.

Source: DfT vehicle licensing statistics (VEH0124).

Recall context

15 recalls in all

7 of the 15 TT Mk3 (8S) recalls cover cars built in these years.

  • 2 Critical
  • 5 more

Top concerns

  • Stop-drive Takata PSAN
  • If a front airbag is deployed it is possible that the gas generator housing in which the propellant is generated may bur
  • Replacing Takata driver airbag

For the exact car, check GOV.UK's recall checker with the number plate.

What has gone wrong on TT Mk3 (8S) cars built around 2018

The share of petrol cars that have ever failed an MOT on each part of the car. Based on 297 cars.

Structural systems

Emissions
2%
Suspension
1%

Wear items

Tyres
25%
Lighting
6%
Brakes
4%
How TT Mk3 (8S) cars have aged

How TT Mk3 (8S) cars have aged

How fail rates have changed as these cars got older. Each line follows cars first registered in about the same year across several years of MOT data. Not a prediction for any one car.

Some lines cover only a year or two, so read this as a rough guide.

0%10%357911Age at MOTBuilt around 2021, 3 years old at the time of MOT: 9.7% (1,875 tests, 2024 data)Built around 2021, 4 years old at the time of MOT: 8.0% (1,643 tests, 2025 data)2021Built around 2020, 3 years old at the time of MOT: 9.0% (2,212 tests, 2023 data)Built around 2020, 4 years old at the time of MOT: 8.8% (2,019 tests, 2024 data)Built around 2020, 5 years old at the time of MOT: 7.5% (1,855 tests, 2025 data)2020Built around 2019, 3 years old at the time of MOT: 7.5% (3,762 tests, 2022 data)Built around 2019, 4 years old at the time of MOT: 7.7% (3,320 tests, 2023 data)Built around 2019, 5 years old at the time of MOT: 8.7% (3,172 tests, 2024 data)Built around 2019, 6 years old at the time of MOT: 8.8% (3,012 tests, 2025 data)2019Built around 2018, 3 years old at the time of MOT: 8.4% (3,632 tests, 2021 data)Built around 2018, 4 years old at the time of MOT: 7.1% (3,314 tests, 2022 data)Built around 2018, 5 years old at the time of MOT: 8.6% (3,274 tests, 2023 data)Built around 2018, 6 years old at the time of MOT: 9.6% (3,262 tests, 2024 data)Built around 2018, 7 years old at the time of MOT: 10.3% (3,196 tests, 2025 data)2018Built around 2017, 4 years old at the time of MOT: 7.7% (5,384 tests, 2021 data)Built around 2017, 5 years old at the time of MOT: 7.6% (5,102 tests, 2022 data)Built around 2017, 6 years old at the time of MOT: 9.5% (4,966 tests, 2023 data)Built around 2017, 7 years old at the time of MOT: 10.6% (4,817 tests, 2024 data)Built around 2017, 8 years old at the time of MOT: 10.5% (4,723 tests, 2025 data)2017Built around 2016, 5 years old at the time of MOT: 8.4% (6,821 tests, 2021 data)Built around 2016, 6 years old at the time of MOT: 9.4% (6,617 tests, 2022 data)Built around 2016, 7 years old at the time of MOT: 10.5% (6,488 tests, 2023 data)Built around 2016, 8 years old at the time of MOT: 11.9% (6,446 tests, 2024 data)Built around 2016, 9 years old at the time of MOT: 11.4% (6,276 tests, 2025 data)2016Built around 2015, 6 years old at the time of MOT: 9.2% (5,712 tests, 2021 data)Built around 2015, 7 years old at the time of MOT: 10.9% (5,645 tests, 2022 data)Built around 2015, 8 years old at the time of MOT: 12.6% (5,506 tests, 2023 data)Built around 2015, 9 years old at the time of MOT: 12.9% (5,290 tests, 2024 data)Built around 2015, 10 years old at the time of MOT: 13.9% (5,224 tests, 2025 data)2015Built around 2014, 7 years old at the time of MOT: 11.6% (3,364 tests, 2021 data)Built around 2014, 8 years old at the time of MOT: 12.6% (3,377 tests, 2022 data)Built around 2014, 9 years old at the time of MOT: 12.5% (3,352 tests, 2023 data)Built around 2014, 10 years old at the time of MOT: 15.5% (3,466 tests, 2024 data)Built around 2014, 11 years old at the time of MOT: 16.9% (3,477 tests, 2025 data)2014
First registered around 2021First registered around 2020First registered around 2019First registered around 2018
How each part holds up as Mk3 (8S) cars age

How each part holds up as Mk3 (8S) cars age

The share of petrol cars built 2017-2020 that have ever failed an MOT on each part of the car. Rates usually rise with age, but can dip slightly as cars leave the road.

Part of the car5 years6 years7 years8 years
SuspensionNo figure1%1%1%
Brakes3%5%4%7%
EmissionsNo figure1%2%3%
Tyres16%17%25%24%
Lighting4%3%6%7%
Corrosion0%0%0%0%

Based on petrol cars in the 2017-2020 build-year band, from 232 to 497 cars at each age.

Mk3 (8S) variants compared

TT Mk3 (8S) variants built around 2018

The fail rate for each TT Mk3 (8S) variant, grouped by fuel. Each row counts fails per MOT test, the same way as the main fail rate chart.

Petrol

  • TT10.2%6,063 tests

Diesel

  • TT11.5%712 tests
All generations of this modelPlenty of data

Most common issues on Audi TTs of this age

This list covers every Audi TT built around 2018, whichever generation it is. We don't have a defect list for the Mk3 (8S) on its own.

Most common advisories and fails

In order of the share of MOT tests that recorded each one

  1. 1
    Advisory

    Tyre worn close to the legal limit or worn on the edge

    17.9%
    Advisory: 1,853Fail: 213 (10% of the times it was found)
  2. 2
    Advisory

    Brake pads wearing thin

    11.0%
    Advisory: 828Fail: 82 (9% of the times it was found)
  3. 3
    Advisory

    Brake disc worn, pitted or scored, but not seriously weakened

    9.7%
    Advisory: 950Fail: 6 (1% of the times it was found)
  4. 4
    Advisory

    Tyre slightly damaged, cracking or perishing

    7.9%
    Advisory: 676Fail: 128 (16% of the times it was found)
  5. 5
    Advisory

    Tyre has a cut that does not reach the ply or cords

    3.8%
    Advisory: 207Fail: 110 (35% of the times it was found)

Based on 6,783 tests

Looking at an Audi TT Mk3 (8S) right now?

Enter its number plate to see its full MOT history, risk rating and running costs.

Frequently asked questions

Built around 2018 (7 years old), the Audi TT Mk3 (8S) (2014-2023) fails MOTs noticeably less often than typical for this age. This is based on 6,783 7-year-old MOT tests from DVSA data. Each retest counts as a test.

*The build year is worked out from the date a car was first used on UK roads. For most cars this matches when it was registered, but imports may differ by a few months.

Data sourced from DVSA MOT History API. From 50,662 MOT tests on Audi TTs first registered between 2014-2023. These figures are a guide, not a guarantee.