2012 Audi S3 — MOT failures & pass rate
Across 1,001 MOT tests analysed for the 2012 Audi S3, the most common recorded failure areas were suspension, lighting & signalling and emissions & environmental. Its pass rate of 84.3% was above the average for cars of a similar age (79.4%). Higher-mileage examples failed more often — 22.9% in the 120-150k group versus 10.9% in the 30-60k group.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Suspension | 6.2% | 62 |
| 2 | Lighting & signalling | 5.5% | 55 |
| 3 | Emissions & environmental | 4.3% | 43 |
| 4 | Tyres | 3.4% | 34 |
| 5 | Brakes | 3.0% | 30 |
| 6 | Body, structure & corrosion | 2.3% | 23 |
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 | 42 |
| 2 | Headlamp aim | 32 |
| 3 | Catalyst emissions | 25 |
| 4 | Linkage ball joint dust cover | 19 |
| 5 | Service brake performance | 18 |
| 6 | Malfunction indicator lamp | 16 |
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 | 21.7% | 217 |
| 2 | Brakes | 15.1% | 151 |
| 3 | Suspension | 14.1% | 141 |
| 4 | Lighting & signalling | 8.2% | 82 |
| 5 | Emissions & environmental | 7.9% | 79 |
| 6 | Body, structure & corrosion | 6.4% | 64 |
Failure rate by mileage
Higher-mileage cars tend to fail more — often the most useful guide to real condition.
| Mileage band | Tests | Fail rate |
|---|---|---|
| 30-60k | 175 | 10.9% |
| 60-90k | 490 | 16.3% |
| 90-120k | 267 | 16.1% |
| 120-150k | 48 | 22.9% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 206 | 16.0% |
| 2022 | 195 | 13.3% |
| 2023 | 197 | 12.7% |
| 2024 | 194 | 17.5% |
| 2025 | 209 | 18.7% |
What to check before buying a 2012 S3
Before buying a 2012 Audi S3, focus on the areas it most often fails on. Suspension accounted for 6.2% of tests for this year.
- Suspension (6.2% 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 (5.5% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Emissions & environmental (4.3% of tests): More common on older diesels (DPF/EGR) — can be expensive; check for warning lights and smoke. Typical repair: £100–£600.
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 2012 Audi S3s pass their MOT?
84.3% of the 1,001 2012 Audi S3 MOT tests in this dataset passed — a 15.7% fail rate.
What is the most common MOT failure on a 2012 Audi S3?
Suspension, recorded in 6.2% of tests, followed by lighting & signalling (5.5%).
Does the 2012 S3 get worse with mileage?
Its MOT fail rate rises from 10.9% in the 30-60k band to 22.9% in the 120-150k band.
Methodology & source. Based on 1,001 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.