2021 Audi Tt MOT pass rate: 91.8% (3,990 tests)
Is the 2021 Tt getting worse?
Pass rate of 2021-registered cars across recent test years:
| Test year | Pass rate | |
|---|---|---|
| 2024 | 91.0% +0.3 vs same-age |
|
| 2025 | 92.6% +2.4 vs same-age |
The raw rate normally falls as cars age. The “vs same-age” figure compares this cohort with all UK cars registered in the same year, so normal ageing is not mistaken for a bad model year.
What fails on a 2021 Tt
| # | System | Defects recorded | Share |
|---|---|---|---|
| 1 | Tyres | 346 | 63.1% |
| 2 | Seat belts and supplementary restraint systems | 44 | 8.0% |
| 3 | Lamps, reflectors and electrical equipment | 37 | 6.8% |
| 4 | Visibility | 31 | 5.7% |
| 5 | Identification of the vehicle | 31 | 5.7% |
| 6 | Brakes | 25 | 4.6% |
All Tt years compared
| Registration year | Tests | Pass rate | Vs same-age | Median mileage |
|---|---|---|---|---|
| 2001 | 8,084 | 64.9% | -1.7 pts | 117,322 |
| 2002 | 12,039 | 64.0% | -1.7 pts | 115,052 |
| 2003 | 13,757 | 64.9% | -0.2 pts | 108,411 |
| 2004 | 13,568 | 65.8% | +1.4 pts | 104,254 |
| 2005 | 10,569 | 66.1% | +1.6 pts | 99,531 |
| 2006 | 8,560 | 67.4% | +3.0 pts | 104,978 |
| 2007 | 23,097 | 71.4% | +6.2 pts | 103,512 |
| 2008 | 21,042 | 73.1% | +8.0 pts | 99,907 |
| 2009 | 17,619 | 76.0% | +9.6 pts | 96,334 |
| 2010 | 19,001 | 76.4% | +9.0 pts | 91,092 |
| 2011 | 18,891 | 79.3% | +10.2 pts | 84,511 |
| 2012 | 16,572 | 84.1% | +12.9 pts | 77,307 |
| 2013 | 18,726 | 85.8% | +12.5 pts | 69,647 |
| 2014 | 11,713 | 86.0% | +10.2 pts | 64,195 |
| 2015 | 25,477 | 87.5% | +8.8 pts | 58,694 |
| 2016 | 27,232 | 89.6% | +8.3 pts | 51,032 |
| 2017 | 21,953 | 90.5% | +6.5 pts | 43,216 |
| 2018 | 12,200 | 91.5% | +5.1 pts | 36,703 |
| 2019 | 13,590 | 92.6% | +4.3 pts | 27,865 |
| 2020 | 8,780 | 92.5% | +2.6 pts | 22,526 |
| 2021 (this page) | 3,990 | 91.8% | +1.4 pts | 20,298 |
| 2022 | 2,285 | 92.9% | +1.7 pts | 17,909 |
Weighing up which year to buy? See the full ranking: Audi Tt years to avoid.
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FAQs
Is a 2021 Audi Tt reliable?
2021-registered examples passed 91.8% of their MOT tests (3,990 tests, 2023–2025), +1.4 points versus all UK cars registered in the same year. At roughly 5 years old with a median 20,298 miles, condition now varies car by car — always check the individual MOT history.
What mileage is too high for a 2021 Tt?
The median tested example shows 20,298 miles. Anything far beyond that isn't automatically bad — a motorway-mile car with consistent service records often beats a low-mileage school-run car — but price accordingly and scrutinise the mileage trail for gaps or drops.
Source: DVSA Anonymised MOT tests and results, 2023–2025 extracts (96 million Class 4 initial tests; retests excluded). Only vehicles old enough for a routine first MOT are included. Age-adjusted figures compare the model-year cohort with all vehicles of the same registration year tested in the same calendar year. Contains public sector information licensed under OGL v3.0.