2008 Audi TT — MOT failures & pass rate
The 2008 Audi TT passed 78.7% of its 45,228 recorded MOT tests. Coupes & convertibles of a similar age fail at 21.1%, so the 2008 TT sits squarely on the average. Failures cluster in suspension, lighting & signalling and tyres.
What the MOT record shows
No single area dominates — suspension (9.2%) and lighting & signalling (8.1%) are close, so failures are spread across several systems rather than one weak point.
At component level the recurring items are coil spring, position lamp and joints — coil spring alone was recorded 1,920 times.
A 150k+ example is materially riskier than a 0-30k one: 24.5% versus 9.4%.
Fuel type barely separates them — petrol fails 21.1% of the time against 22.5% for diesel.
Advisories point at the next bill rather than this one: tyres was flagged on 26.2% of tests without failing them.
The trend is worsening — 20.6% of tests failed in 2021 against 22.2% in 2025, the usual pattern as a fleet ages.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Suspension | 9.2% | 4,139 |
| 2 | Lighting & signalling | 8.1% | 3,668 |
| 3 | Tyres | 5.1% | 2,284 |
| 4 | Brakes | 4.8% | 2,186 |
| 5 | Body, structure & corrosion | 4.1% | 1,857 |
| 6 | Visibility | 4.0% | 1,809 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Coil spring | 1,920 |
| 2 | Position lamp | 1,713 |
| 3 | Joints | 1,676 |
| 4 | Linkage ball joint dust cover | 1,590 |
| 5 | Tread depth | 1,439 |
| 6 | Headlamp aim | 1,280 |
Top advisory categories
Advisories aren't failures, but they flag work likely needed soon — useful when budgeting.
| # | Category | % of tests with advisory | Tests |
|---|---|---|---|
| 1 | Tyres | 26.2% | 11,864 |
| 2 | Suspension | 23.4% | 10,564 |
| 3 | Brakes | 17.9% | 8,106 |
| 4 | Body, structure & corrosion | 10.5% | 4,754 |
| 5 | Other defects | 6.4% | 2,910 |
| 6 | Lighting & signalling | 6.4% | 2,909 |
Failure rate by mileage
Higher-mileage cars tend to fail more — often the most useful guide to real condition.
| Mileage band | Tests | Fail rate |
|---|---|---|
| 0-30k | 520 | 9.4% |
| 30-60k | 5,052 | 16.4% |
| 60-90k | 13,626 | 20.2% |
| 90-120k | 15,130 | 22.4% |
| 120-150k | 7,687 | 23.6% |
| 150k+ | 3,200 | 24.5% |
Failure rate by age
By fuel type
| Fuel | Tests | Fail rate |
|---|---|---|
| Petrol | 39,140 | 21.1% |
| Diesel | 6,088 | 22.5% |
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 9,513 | 20.6% |
| 2022 | 9,284 | 20.7% |
| 2023 | 9,120 | 20.9% |
| 2024 | 8,851 | 22.0% |
| 2025 | 8,460 | 22.2% |
What to check before buying a 2008 TT
On a 2008 TT, suspension is what the MOT record says goes wrong most — it appeared in 9.2% of tests. Check these areas before you commit.
- Suspension (9.2% of tests): Worn drop links, bushes, springs or shocks — listen for knocks over bumps and check for uneven tyre wear. Typical repair: £150–£450 per corner.
- Lighting & signalling (8.1% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Tyres (5.1% of tests): Usually a quick, known-cost fix, but check tread, age and uneven wear (which can hint at alignment or suspension issues). Typical repair: £50–£120 per tyre.
Repair costs are rough UK ballpark ranges to set expectations, not quotes — actual prices vary widely by car, parts and garage.
Frequently asked questions
How many 2008 Audi TTs pass their MOT?
78.7% of the 45,228 2008 Audi TT MOT tests in this dataset passed — a 21.3% fail rate.
What is the most common MOT failure on a 2008 Audi TT?
Suspension, recorded in 9.2% of tests, followed by lighting & signalling (8.1%).
Does the 2008 TT get worse with mileage?
Its MOT fail rate rises from 9.4% in the 0-30k band to 24.5% in the 150k+ band.
Methodology & source. Based on 45,228 MOT tests. Dataset: DVSA MOT testing data (2021,2022,2023,2024,2025). Data last updated 2026-07-27. Figures reflect MOT-testable defects only — read the methodology for how these are calculated and what they don't measure.