2018 Alfa Romeo Stelvio — MOT failures & pass rate
Across 5,858 MOT tests analysed for the 2018 Alfa Romeo Stelvio, the most common recorded failure areas were tyres, brakes and lighting & signalling. Its pass rate of 89.5% was in line with the average for cars of a similar age (89.0%). Higher-mileage examples failed more often — 18.8% in the 90-120k group versus 8.3% in the 0-30k group.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Tyres | 4.5% | 266 |
| 2 | Brakes | 3.3% | 192 |
| 3 | Lighting & signalling | 2.7% | 156 |
| 4 | Visibility | 1.5% | 86 |
| 5 | Emissions & environmental | 0.8% | 44 |
| 6 | Suspension | 0.7% | 38 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Brake pads | 205 |
| 2 | Tread depth | 203 |
| 3 | Headlamp aim | 94 |
| 4 | Washers | 74 |
| 5 | Brake discs | 44 |
| 6 | Malfunction indicator lamp | 33 |
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 | 22.6% | 1,324 |
| 2 | Tyres | 20.3% | 1,192 |
| 3 | Other defects | 4.6% | 270 |
| 4 | Suspension | 3.6% | 212 |
| 5 | Lighting & signalling | 2.1% | 122 |
| 6 | Visibility | 1.8% | 105 |
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 | 1,641 | 8.3% |
| 30-60k | 2,976 | 10.3% |
| 60-90k | 1,056 | 12.9% |
| 90-120k | 154 | 18.8% |
Failure rate by age
By fuel type
| Fuel | Tests | Fail rate |
|---|---|---|
| Petrol | 2,968 | 9.7% |
| Diesel | 2,890 | 11.3% |
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 1,177 | 9.8% |
| 2022 | 1,175 | 9.7% |
| 2023 | 1,162 | 9.3% |
| 2024 | 1,189 | 11.7% |
| 2025 | 1,155 | 11.8% |
What to check before buying a 2018 Stelvio
Before buying a 2018 Alfa Romeo Stelvio, focus on the areas it most often fails on. Tyres accounted for 4.5% of tests for this year.
- Tyres (4.5% 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.
- Brakes (3.3% 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.
- Lighting & signalling (2.7% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
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 2018 Alfa Romeo Stelvios pass their MOT?
89.5% of the 5,858 2018 Alfa Romeo Stelvio MOT tests in this dataset passed — a 10.4% fail rate.
What is the most common MOT failure on a 2018 Alfa Romeo Stelvio?
Tyres, recorded in 4.5% of tests, followed by brakes (3.3%).
Does the 2018 Stelvio get worse with mileage?
Its MOT fail rate rises from 8.3% in the 0-30k band to 18.8% in the 90-120k band.
Methodology & source. Based on 5,858 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.