Audi TT MOT Failure Rate & Common Faults
We analysed 115,747 MOT tests on the Audi TT carried out in 2023. 24% failed at the first attempt, which is noticeably below the 29% average across all cars in the same data. Put another way, about 8 in 10 TT models passed first time.
Results cover cars first registered from 1999 to 2021. Compared with other cars of the same age, 2012 models did best (82% passed, +16.3 points against the average for 11-year-old cars), while 1999 models fared worst (59%, −3.9 points). Tested cars had covered 76,846 miles on average, against 73,145 across all cars.
The most common reason for failure was lights and electrics, found on 8.5% of tests (slightly below the 11.3% seen across all cars). The single most frequent fault was "not working", on 4.0% of tests.
- MOT tests analysed
- 115,747
- First-time pass rate
- 76%
- All cars: 71%
- Versus all cars
- +4.4 points
- Average mileage at test
- 76,846
- All cars: 73,145
Checking a particular TT?
See its own MOT history, advisories and mileage for free.
TT MOT pass rate by year
Older cars fail more often, so each year is compared with all cars of the same age. Bars above the dashed line did better than average for their age.
| First registered | Tests | Pass rate | All cars, same age | Difference | Avg mileage |
|---|---|---|---|---|---|
| 2021 | 92 | 96% | 91% | +4.8 points | 17,093 |
| 2020 | 3,056 | 91% | 88% | +3.4 points | 18,625 |
| 2019 | 4,680 | 92% | 86% | +5.7 points | 24,029 |
| 2018 | 4,182 | 91% | 84% | +6.9 points | 32,886 |
| 2017 | 7,426 | 90% | 82% | +8.1 points | 39,595 |
| 2016 | 9,258 | 89% | 79% | +10.0 points | 47,615 |
| 2015 | 8,665 | 86% | 75% | +10.8 points | 55,573 |
| 2014 | 4,000 | 86% | 72% | +13.8 points | 61,191 |
| 2013 | 6,361 | 84% | 68% | +15.6 points | 67,042 |
| 2012 | 5,675 | 82% | 66% | +16.3 points | 74,383 |
| 2011 | 6,481 | 77% | 63% | +14.2 points | 82,660 |
| 2010 | 6,554 | 74% | 60% | +13.1 points | 89,495 |
| 2009 | 6,163 | 72% | 59% | +12.9 points | 94,742 |
| 2008 | 7,399 | 69% | 57% | +12.1 points | 98,075 |
| 2007 | 8,189 | 67% | 57% | +9.6 points | 101,657 |
| 2006 | 3,075 | 62% | 56% | +5.8 points | 103,719 |
| 2005 | 3,858 | 61% | 56% | +4.3 points | 100,174 |
| 2004 | 5,043 | 59% | 56% | +3.2 points | 104,281 |
| 2003 | 5,268 | 58% | 57% | +1.5 points | 109,802 |
| 2002 | 4,656 | 57% | 58% | −0.7 points | 115,567 |
| 2001 | 3,175 | 57% | 59% | −1.2 points | 117,711 |
| 2000 | 2,061 | 58% | 61% | −2.9 points | 116,313 |
| 1999 | 423 | 59% | 62% | −3.9 points | 124,068 |
Why the Audi TT fails its MOT
The share of tests with at least one failure in each area, compared with all cars.
| Failure area | TT | All cars |
|---|---|---|
| Lights and electrics | 8.5% | 11.3% |
| Suspension | 7.2% | 8.9% |
| Tyres | 6.2% | 6.3% |
| Brakes | 5.6% | 6.8% |
| Noise, emissions and leaks | 3.9% | 3.1% |
| Visibility | 3.3% | 4.8% |
| Body and structure | 3.0% | 3.5% |
| Seatbelts and airbags | 1.3% | 1.0% |
| Steering | 1.0% | 1.8% |
| Number plates and VIN | 0.5% | 0.4% |
Top 10 specific failure reasons
- 1not working4.0%
- 2tread depth below requirements of 1.6mm2.8%
- 3fractured or broken2.6%
- 4inoperative or indicates a malfunction2.3%
- 5ball joint dust cover no longer prevents the ingress of dirt2.2%
- 6constant velocity boot split or insecure, no longer prevents the ingress of dirt1.9%
- 7does not clear the windscreen effectively1.5%
- 8has ply or cords exposed1.3%
- 9excessively binding1.3%
- 10less than 1.5 mm thick1.1%
Common TT MOT advisories
Advisories don't cause a fail, but they show what's wearing out. On a used TT, check whether these have been dealt with. Read our guide to MOT advisories.
| Advisory | Area | Share of tests |
|---|---|---|
| tread depth below requirements of 1.6mm | Tyres | 15.7% |
| in such a condition that it is seriously weakened | Brakes | 9.5% |
| has a tear, caused by separation or partial failure of its structure | Tyres | 6.3% |
| less than 1.5 mm thick | Brakes | 5.8% |
| pin or bush excessively worn | Suspension | 5.2% |
| corroded and seriously weakened | Suspension | 5.0% |
| excessively corroded | Brakes | 4.6% |
| corroded so that its cross sectional area is reduced and seriously weakened | Suspension | 4.2% |
| leaking excessively from engine | Noise, emissions and leaks | 3.4% |
| tread pattern not visible over the whole tread area when minimum depth required is 1.0mm | Tyres | 2.4% |
Tips to help your TT pass
Based on where TT models most often fail. For a full list, use our pre-MOT checklist.
Lights and electrics · 8.5% of TT tests
Walk round every light
With a helper, check headlights on dipped and main beam, sidelights, brake lights, indicators, the rear fog light and the number plate lamp. Replace blown bulbs in pairs and make sure no lenses are cracked.
Brakes · 5.6% of TT tests
Don't ignore brake warning signs
Grinding, squealing, a soft pedal or the car pulling to one side under braking are all worth investigating before the MOT. Check whether the last test noted worn pads or discs; if so, they may now be below the limit.
Compare with other models
Is the TT ULEZ compliant? See the Audi TT ULEZ check, or view all Audi models.
Models with similar pass rates
About this data
Based on 115,747 first MOT tests of the Audi TT carried out in 2023.
Source: DVSA anonymised MOT test data (contains public sector information licensed under the Open Government Licence v3.0). First attempts on cars only; “pass rate” means passing first time. Averages cover all 32,735,164 cars tested (71% passed), and years with under 50 tests are hidden.
Learn more about how our data works.
Frequently asked questions
Answers from 115,747 first MOT tests of the Audi TT.
What is the Audi TT MOT failure rate?
In our data, 24% of 115,747 first MOT attempts on the Audi TT ended in a fail, compared with 29% for all cars.
What is the most common reason a Audi TT fails its MOT?
The most common failure areas were lights and electrics (8.5% of tests), suspension (7.2% of tests), tyres (6.2% of tests).
Which TT year has the best MOT pass rate?
Allowing for age, 2012 cars performed best: 82% passed first time, +16.3 points against the average for 11-year-old cars. The weakest was 1999, at 59% (−3.9 points).
How many miles had a typical Audi TT covered at its MOT?
The average was 76,846 miles, against 73,145 for all cars tested. 2021 cars averaged 17,093 miles and 1999 cars 124,068.
What is the most common MOT advisory on the Audi TT?
"tread depth below requirements of 1.6mm" was recorded on 15.7% of tests, in the tyres area. 6.2% of TT models failed in that area too.
How can I check a specific TT's MOT history?
Enter its registration in our free MOT check. Across the 115,747 TT models in our data, first-time pass rates ranged from 57% to 96% by year, so one car's own record says more than the average.
Related guides
- MOT · 6 min readPre-MOT checklist: 20 things to check yourself before the testTwenty quick checks, grouped by area, that you can do on your driveway in under half an hour. No tools beyond a coin and a helper needed for most.Read the guide
- MOT · 6 min readThe most common reasons cars fail their MOT (and how to avoid them)Lights alone failed 11.3% of cars at their 2023 MOT, more than any other area. The common failure areas, ranked, and the driveway checks that prevent them.Read the guide
- MOT · 4 min readTyre tread depth and the MOT: the legal limit and how to check6.3% of cars failed their 2023 MOT on tyres. The 1.6mm legal limit, what testers look for beyond tread, and a one-minute check with a 20p coin.Read the guide
Check any TT's MOT history
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