2013 Audi TT — MOT failures & pass rate
The 2013 Audi TT passed 88.4% of its 35,604 recorded MOT tests. That is 3.1 percentage points better than coupes & convertibles of a similar age, which fail at 14.7%. Failures cluster in tyres, lighting & signalling and brakes.
What the MOT record shows
No single area dominates — tyres (4.7%) and lighting & signalling (3.9%) are close, so failures are spread across several systems rather than one weak point.
At component level the recurring items are tread depth, brake pads and washers — tread depth alone was recorded 1,208 times.
Mileage is the strongest signal on the record: 6.2% of 0-30k cars fail, rising to 21.1% once past 150k — 3.4× the risk.
Split by fuel, diesel examples fail 2.4pp more often than petrol ones (13.1% vs 10.8%) — worth weighing if you have a choice.
Advisories point at the next bill rather than this one: tyres was flagged on 24.0% of tests without failing them.
The trend is worsening — 9.8% of tests failed in 2021 against 13.2% in 2025, the usual pattern as a fleet ages.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Tyres | 4.7% | 1,688 |
| 2 | Lighting & signalling | 3.9% | 1,373 |
| 3 | Brakes | 2.5% | 908 |
| 4 | Suspension | 2.3% | 828 |
| 5 | Visibility | 2.3% | 825 |
| 6 | Emissions & environmental | 1.0% | 349 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Tread depth | 1,208 |
| 2 | Brake pads | 491 |
| 3 | Washers | 482 |
| 4 | Headlamp aim | 452 |
| 5 | Wipers | 427 |
| 6 | Stop lamp | 400 |
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 | 24.0% | 8,551 |
| 2 | Brakes | 13.6% | 4,836 |
| 3 | Suspension | 8.4% | 3,005 |
| 4 | Other defects | 4.3% | 1,523 |
| 5 | Visibility | 3.3% | 1,171 |
| 6 | Lighting & signalling | 3.2% | 1,144 |
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 | 2,188 | 6.2% |
| 30-60k | 12,959 | 9.3% |
| 60-90k | 13,657 | 12.6% |
| 90-120k | 5,227 | 15.1% |
| 120-150k | 1,255 | 17.9% |
| 150k+ | 313 | 21.1% |
Failure rate by age
By fuel type
| Fuel | Tests | Fail rate |
|---|---|---|
| Petrol | 22,632 | 10.8% |
| Diesel | 12,972 | 13.1% |
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 7,000 | 9.8% |
| 2022 | 7,123 | 10.6% |
| 2023 | 7,138 | 11.6% |
| 2024 | 7,173 | 12.9% |
| 2025 | 7,170 | 13.2% |
What to check before buying a 2013 TT
On a 2013 TT, tyres is what the MOT record says goes wrong most — it appeared in 4.7% of tests. Check these areas before you commit.
- Tyres (4.7% 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.
- Lighting & signalling (3.9% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Brakes (2.5% 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 2013 Audi TTs pass their MOT?
88.4% of the 35,604 2013 Audi TT MOT tests in this dataset passed — a 11.6% fail rate.
What is the most common MOT failure on a 2013 Audi TT?
Tyres, recorded in 4.7% of tests, followed by lighting & signalling (3.9%).
Does the 2013 TT get worse with mileage?
Its MOT fail rate rises from 6.2% in the 0-30k band to 21.1% in the 150k+ band.
Methodology & source. Based on 35,604 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.