2001 Audi Tt — MOT failures & pass rate
Across 20,723 MOT tests analysed for the 2001 Audi Tt, the most common recorded failure areas were lighting & signalling, suspension and brakes. Its pass rate of 71.5% was below the average for coupes & convertibles of a similar age (77.2%). Higher-mileage examples failed more often — 30.8% in the 150k+ group versus 13.9% in the 0-30k group.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Lighting & signalling | 16.1% | 3,329 |
| 2 | Suspension | 11.9% | 2,466 |
| 3 | Brakes | 10.6% | 2,193 |
| 4 | Emissions & environmental | 9.3% | 1,925 |
| 5 | Body, structure & corrosion | 7.2% | 1,502 |
| 6 | Tyres | 5.6% | 1,162 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Catalyst emissions | 2,417 |
| 2 | Headlamp aim | 1,836 |
| 3 | Position lamp | 1,313 |
| 4 | Joints | 1,284 |
| 5 | Pins and bushes | 1,125 |
| 6 | Headlamp | 1,116 |
Top advisory categories
Advisories aren't failures, but they flag work likely needed soon — useful when budgeting.
| # | Category | % of tests with advisory | Tests |
|---|---|---|---|
| 1 | Suspension | 40.0% | 8,285 |
| 2 | Brakes | 36.2% | 7,503 |
| 3 | Tyres | 24.0% | 4,969 |
| 4 | Lighting & signalling | 18.4% | 3,804 |
| 5 | Body, structure & corrosion | 17.5% | 3,618 |
| 6 | Emissions & environmental | 13.8% | 2,854 |
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 | 137 | 13.9% |
| 30-60k | 890 | 17.5% |
| 60-90k | 3,216 | 25.4% |
| 90-120k | 6,701 | 28.8% |
| 120-150k | 6,366 | 30.2% |
| 150k+ | 3,375 | 30.8% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 5,555 | 29.2% |
| 2022 | 4,815 | 29.1% |
| 2023 | 4,094 | 28.5% |
| 2024 | 3,396 | 27.7% |
| 2025 | 2,863 | 26.9% |
What to check before buying a 2001 Tt
Before buying a 2001 Audi Tt, focus on the areas it most often fails on. Lighting & signalling accounted for 16.1% of tests for this year.
- Lighting & signalling (16.1% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Suspension (11.9% 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.
- Brakes (10.6% of tests): Pads/discs are routine wear; binding, imbalance or corroded pipes are more serious — test for pulling under braking. Typical repair: £100–£350 per axle.
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 2001 Audi Tts pass their MOT?
71.5% of the 20,723 2001 Audi Tt MOT tests in this dataset passed — a 28.5% fail rate.
What is the most common MOT failure on a 2001 Audi Tt?
Lighting & signalling, recorded in 16.1% of tests, followed by suspension (11.9%).
Does the 2001 Tt get worse with mileage?
Its MOT fail rate rises from 13.9% in the 0-30k band to 30.8% in the 150k+ band.
Methodology & source. Based on 20,723 MOT tests. Dataset: DVSA MOT testing data (2021,2022,2023,2024,2025). Data last updated 2026-07-01. Figures reflect MOT-testable defects only — read the methodology for how these are calculated and what they don't measure.