2015 Vauxhall Mokka — MOT failures & pass rate
262,946 MOT tests on the 2015 Vauxhall Mokka are in this dataset, and 81.3% of them passed. Against small SUVs of a similar age (16.5% fail rate), the 2015 Mokka comes out 2.2pp worse. Failures cluster in suspension, lighting & signalling and tyres.
What the MOT record shows
No single area dominates — suspension (8.9%) and lighting & signalling (8.6%) are close, so failures are spread across several systems rather than one weak point.
At component level the recurring items are ball joint dust cover, position lamp and coil spring — ball joint dust cover alone was recorded 14,815 times.
Condition tracks the odometer closely. Failures run at 8.9% in the 0-30k band and 30.4% in the 150k+ band, a 21.5-point spread — more than double.
The petrol cars hold up better: 17.9% fail against 20.5% for diesel, a 2.6-point gap across 262,946 tests.
Tyres is the most common advisory, noted on 24.9% of tests — work that passed today but is likely due soon.
The trend is worsening — 13.2% of tests failed in 2021 against 23.8% in 2025, the usual pattern as a fleet ages.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Suspension | 8.9% | 23,329 |
| 2 | Lighting & signalling | 8.6% | 22,608 |
| 3 | Tyres | 5.1% | 13,377 |
| 4 | Brakes | 3.9% | 10,364 |
| 5 | Visibility | 3.9% | 10,187 |
| 6 | Steering | 2.8% | 7,286 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Ball joint dust cover | 14,815 |
| 2 | Position lamp | 11,812 |
| 3 | Coil spring | 9,317 |
| 4 | Track rod end | 8,741 |
| 5 | Wipers | 8,442 |
| 6 | Headlamp aim | 7,754 |
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 | 24.9% | 65,385 |
| 2 | Brakes | 18.1% | 47,644 |
| 3 | Suspension | 12.0% | 31,682 |
| 4 | Other defects | 9.5% | 25,011 |
| 5 | Emissions & environmental | 7.9% | 20,694 |
| 6 | Body, structure & corrosion | 5.3% | 14,017 |
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 | 25,518 | 8.9% |
| 30-60k | 124,020 | 16.0% |
| 60-90k | 85,497 | 22.9% |
| 90-120k | 22,653 | 26.8% |
| 120-150k | 4,281 | 28.1% |
| 150k+ | 957 | 30.4% |
Failure rate by age
By fuel type
| Fuel | Tests | Fail rate |
|---|---|---|
| Petrol | 173,273 | 17.9% |
| Diesel | 89,673 | 20.5% |
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 50,053 | 13.2% |
| 2022 | 51,363 | 15.6% |
| 2023 | 52,994 | 19.0% |
| 2024 | 53,853 | 21.5% |
| 2025 | 54,683 | 23.8% |
What to check before buying a 2015 Mokka
The failure pattern for this year is specific enough to inspect against: suspension accounted for 8.9% of tests. Start there.
- Suspension (8.9% 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 (8.6% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Tyres (5.1% 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.
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 2015 Vauxhall Mokkas pass their MOT?
81.3% of the 262,946 2015 Vauxhall Mokka MOT tests in this dataset passed — a 18.7% fail rate.
What is the most common MOT failure on a 2015 Vauxhall Mokka?
Suspension, recorded in 8.9% of tests, followed by lighting & signalling (8.6%).
Does the 2015 Mokka get worse with mileage?
Its MOT fail rate rises from 8.9% in the 0-30k band to 30.4% in the 150k+ band.
Methodology & source. Based on 262,946 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.