2012 Audi S3 — MOT failures & pass rate
Across 1,007 MOT tests, the 2012 Audi S3 recorded an 84.4% pass rate. That is 5.7 percentage points better than small family cars of a similar age, which fail at 21.3%. Failures cluster in suspension, lighting & signalling and emissions & environmental.
What the MOT record shows
No single area dominates — suspension (6.2%) and lighting & signalling (5.5%) are close, so failures are spread across several systems rather than one weak point.
At component level the recurring items are coil spring, headlamp aim and catalyst emissions — coil spring alone was recorded 42 times.
Condition tracks the odometer closely. Failures run at 10.5% in the 30-60k band and 22.9% in the 120-150k band, a 12.4-point spread — more than double.
Tyres is the most common advisory, noted on 21.6% of tests — work that passed today but is likely due soon.
The trend is worsening — 16.0% of tests failed in 2021 against 18.4% in 2025, the usual pattern as a fleet ages.
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 | 21.6% | 218 |
| 2 | Brakes | 15.1% | 152 |
| 3 | Suspension | 14.1% | 142 |
| 4 | Lighting & signalling | 8.1% | 82 |
| 5 | Emissions & environmental | 7.9% | 80 |
| 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 | 181 | 10.5% |
| 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 | 196 | 13.3% |
| 2023 | 198 | 12.6% |
| 2024 | 195 | 17.4% |
| 2025 | 212 | 18.4% |
What to check before buying a 2012 S3
The failure pattern for this year is specific enough to inspect against: suspension accounted for 6.2% of tests. Start there.
- 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?
84.4% of the 1,007 2012 Audi S3 MOT tests in this dataset passed — a 15.6% 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 10.5% in the 30-60k band to 22.9% in the 120-150k band.
Methodology & source. Based on 1,007 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.