2008 Audi A3 — MOT failures & pass rate
The 2008 Audi A3 passed 74.6% of its 134,693 recorded MOT tests. Small family cars of a similar age fail at 26.3%, so the 2008 A3 sits squarely on the average. Failures cluster in suspension, lighting & signalling and brakes.
What the MOT record shows
No single area dominates — suspension (13.3%) and lighting & signalling (12.6%) are close, so failures are spread across several systems rather than one weak point.
At component level the recurring items are headlamp aim, coil spring and joints — headlamp aim alone was recorded 8,997 times.
Condition tracks the odometer closely. Failures run at 13.3% in the 0-30k band and 27.2% in the 150k+ band, a 14.0-point spread — more than double.
Fuel type barely separates them — petrol fails 24.5% of the time against 25.9% for diesel.
Advisories point at the next bill rather than this one: suspension was flagged on 32.1% of tests without failing them.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Suspension | 13.3% | 17,854 |
| 2 | Lighting & signalling | 12.6% | 17,021 |
| 3 | Brakes | 7.8% | 10,446 |
| 4 | Body, structure & corrosion | 6.8% | 9,177 |
| 5 | Tyres | 6.5% | 8,751 |
| 6 | Emissions & environmental | 4.7% | 6,289 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Headlamp aim | 8,997 |
| 2 | Coil spring | 8,822 |
| 3 | Joints | 7,771 |
| 4 | Linkage ball joint dust cover | 5,590 |
| 5 | Tread depth | 5,337 |
| 6 | Ball joint dust cover | 4,727 |
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 | 32.1% | 43,308 |
| 2 | Tyres | 29.8% | 40,180 |
| 3 | Brakes | 23.5% | 31,724 |
| 4 | Lighting & signalling | 14.8% | 19,873 |
| 5 | Body, structure & corrosion | 13.4% | 18,086 |
| 6 | Emissions & environmental | 11.9% | 16,001 |
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 | 512 | 13.3% |
| 30-60k | 5,381 | 17.5% |
| 60-90k | 20,487 | 22.7% |
| 90-120k | 38,099 | 25.4% |
| 120-150k | 36,962 | 26.6% |
| 150k+ | 33,192 | 27.2% |
Failure rate by age
By fuel type
| Fuel | Tests | Fail rate |
|---|---|---|
| Diesel | 86,627 | 25.9% |
| Petrol | 48,063 | 24.5% |
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 31,741 | 24.6% |
| 2022 | 29,944 | 25.1% |
| 2023 | 27,693 | 25.9% |
| 2024 | 24,472 | 25.8% |
| 2025 | 20,843 | 26.0% |
What to check before buying a 2008 A3
On a 2008 A3, suspension is what the MOT record says goes wrong most — it appeared in 13.3% of tests. Check these areas before you commit.
- Suspension (13.3% 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 (12.6% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Brakes (7.8% 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 2008 Audi A3s pass their MOT?
74.6% of the 134,693 2008 Audi A3 MOT tests in this dataset passed — a 25.4% fail rate.
What is the most common MOT failure on a 2008 Audi A3?
Suspension, recorded in 13.3% of tests, followed by lighting & signalling (12.6%).
Does the 2008 A3 get worse with mileage?
Its MOT fail rate rises from 13.3% in the 0-30k band to 27.2% in the 150k+ band.
Methodology & source. Based on 134,693 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.