2012 Suzuki Alto — MOT failures & pass rate
The 2012 Suzuki Alto passed 80.7% of its 28,551 recorded MOT tests. Against city cars of a similar age (20.9% fail rate), the 2012 Alto comes out 1.6pp better. Failures cluster in lighting & signalling, brakes and suspension.
What the MOT record shows
One area stands out: lighting & signalling, recorded in 11.9% of tests against 7.0% for the next-worst category.
At component level the recurring items are rigid brake pipes, wipers and stop lamp — rigid brake pipes alone was recorded 2,022 times.
Condition tracks the odometer closely. Failures run at 11.0% in the 0-30k band and 27.6% in the 150k+ band, a 16.6-point spread — more than double.
Brakes is the most common advisory, noted on 32.5% of tests — work that passed today but is likely due soon.
The trend is worsening — 17.0% of tests failed in 2021 against 21.2% in 2025, the usual pattern as a fleet ages.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Lighting & signalling | 11.9% | 3,395 |
| 2 | Brakes | 7.0% | 2,013 |
| 3 | Suspension | 6.7% | 1,921 |
| 4 | Visibility | 6.3% | 1,800 |
| 5 | Tyres | 4.9% | 1,395 |
| 6 | Body, structure & corrosion | 2.4% | 684 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Rigid brake pipes | 2,022 |
| 2 | Wipers | 1,471 |
| 3 | Stop lamp | 1,342 |
| 4 | Position lamp | 1,170 |
| 5 | Tread depth | 876 |
| 6 | Pins and bushes | 818 |
Top advisory categories
Advisories aren't failures, but they flag work likely needed soon — useful when budgeting.
| # | Category | % of tests with advisory | Tests |
|---|---|---|---|
| 1 | Brakes | 32.5% | 9,287 |
| 2 | Suspension | 30.6% | 8,723 |
| 3 | Tyres | 27.6% | 7,865 |
| 4 | Body, structure & corrosion | 8.8% | 2,514 |
| 5 | Lighting & signalling | 8.5% | 2,421 |
| 6 | Other defects | 7.7% | 2,205 |
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 | 4,086 | 11.0% |
| 30-60k | 11,838 | 17.5% |
| 60-90k | 8,835 | 22.6% |
| 90-120k | 3,026 | 25.6% |
| 120-150k | 614 | 26.9% |
| 150k+ | 152 | 27.6% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 5,807 | 17.0% |
| 2022 | 5,786 | 17.7% |
| 2023 | 5,862 | 19.8% |
| 2024 | 5,663 | 20.8% |
| 2025 | 5,433 | 21.2% |
What to check before buying a 2012 Alto
The failure pattern for this year is specific enough to inspect against: lighting & signalling accounted for 11.9% of tests. Start there.
- Lighting & signalling (11.9% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Brakes (7.0% 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.
- Suspension (6.7% 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.
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 Suzuki Altos pass their MOT?
80.7% of the 28,551 2012 Suzuki Alto MOT tests in this dataset passed — a 19.3% fail rate.
What is the most common MOT failure on a 2012 Suzuki Alto?
Lighting & signalling, recorded in 11.9% of tests, followed by brakes (7.0%).
Does the 2012 Alto get worse with mileage?
Its MOT fail rate rises from 11.0% in the 0-30k band to 27.6% in the 150k+ band.
Methodology & source. Based on 28,551 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.