1999 Audi TT · 1,631 MOT tests
1999 Audi TT reliability
1999 Audi TTs fail 43% of first MOT tests, 6% more MOT fails than the average car its age and mileage, ranking 23 of 23 TT years (1,631 DVSA tests, 2022 to 2024).
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- first-time fail rate (all Audi TTs: 22.6%)
- 43%
- first-time fail rate (all Audi TTs: 22.6%)
- fails than cars of the same age and mileage
- 6% more
- fails than cars of the same age and mileage
- typical miles at its MOT, aged about 23
- 125,704
- typical miles at its MOT, aged about 23
- MOT tests, 2022 to 2024
- 1,631
- MOT tests, 2022 to 2024
Year on year
1999 against the years either side
- 2000 cars: about average for its age (the 1999 car does worse)
- Weak spot: steering, 6.9% of tests fail here (55% above cars of the same age and mileage).
- Strong point: seat belts and airbags, 16% fewer fails than comparable cars.
Common problems
What fails on a 1999 Audi TT
Fail rate by area
- Lights and electrics20.3%
- Suspension15.8%
- Brakes15.3%
- Body, chassis and structure9.7%
- Exhaust, emissions and leaks9.4%
- Windscreen, wipers and mirrors7.8%
- Steering6.9%
Average for cars of the same age and mileage
Top failures
Position lamp not working 5.15%
A failed position lamp makes the car harder to see in poor light and is illegal, so it must be repaired.
CV joint boot split or insecure 3.8%
A split CV boot lets dirt in and grease out, so the joint wears and may need full replacement.
Coil spring fractured or broken 3.49%
A broken coil spring can leave the car sitting low or unstable, so it must be replaced before driving.
Lambda reading outside specified limits 3.13%
An out-of-range lambda reading suggests poor fuel mixture or a failing catalytic converter, so diagnosis is needed.
Suspension arm pin/bush excessively worn 3.13%
Worn suspension arm bushes allow the wheel to move unpredictably, affecting steering, handling and tyre wear.
Rigid brake pipe excessively corroded 2.82%
Badly corroded brake pipes can leak or fail, which can cause a loss of braking, so repair is urgent.
Common advisories
Brake pipes corroded and greasy (14.9%) · Engine oil leak, not excessive (13.3%) · Brake disc pitted or scored (13.12%) · Suspension arm pin/bush showing wear (12.63%) · Tyre worn close to legal limit (12.39%) · Coil spring showing some corrosion (8.28%)
Other years
Every Audi TT year
The full picture: Audi TT reliability. Before you pay for any Audi TT, a Full Check (£9.99) shows finance, stolen and write-off records the MOT can't.
Source: DVSA anonymised MOT results, 2022 to 2024, class 4 normal tests.
Is a 1999 Audi TT reliable?
1999 Audi TTs fail 43% of first MOT tests, 6% more MOT fails than the average car its age and mileage, ranking 23 of 23 TT years (1,631 DVSA tests, 2022 to 2024).
What fails on a 1999 Audi TT MOT?
Most often position lamp not working (5.15% of tests), cv joint boot split or insecure (3.8% of tests), coil spring fractured or broken (3.49% of tests).
How many miles should a 1999 Audi TT have done?
At its MOT aged about 23, a typical 1999 Audi TT shows 125,704 miles. Much higher or lower is worth asking about.
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