2020 Seat Leon Dynamic — MOT failures & pass rate
Across 1,282 MOT tests analysed for the 2020 Seat Leon Dynamic, the most common recorded failure areas were tyres, lighting & signalling and suspension. Its pass rate of 90.8% was in line with the average for cars of a similar age (90.5%). Higher-mileage examples failed more often — 16.1% in the 60-90k group versus 6.6% in the 0-30k group.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Tyres | 5.0% | 64 |
| 2 | Lighting & signalling | 2.5% | 32 |
| 3 | Suspension | 2.3% | 30 |
| 4 | Visibility | 1.7% | 22 |
| 5 | Emissions & environmental | 0.9% | 11 |
| 6 | Brakes | 0.8% | 10 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Headlamp aim | 29 |
| 2 | Tread depth | 21 |
| 3 | Shock absorbers | 20 |
| 4 | Washers | 13 |
| 5 | Pins and bushes | 12 |
| 6 | Wipers | 11 |
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 | 24.4% | 313 |
| 2 | Suspension | 12.9% | 165 |
| 3 | Brakes | 6.6% | 85 |
| 4 | Other defects | 6.5% | 83 |
| 5 | Visibility | 2.9% | 37 |
| 6 | Lighting & signalling | 0.3% | 4 |
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 | 587 | 6.6% |
| 30-60k | 608 | 10.9% |
| 60-90k | 81 | 16.1% |
Failure rate by age
By fuel type
| Fuel | Tests | Fail rate |
|---|---|---|
| Petrol | 1,234 | 9.0% |
| Diesel | 48 | 14.6% |
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2023 | 419 | 7.9% |
| 2024 | 434 | 9.4% |
| 2025 | 429 | 10.3% |
What to check before buying a 2020 Leon Dynamic
Before buying a 2020 Seat Leon Dynamic, focus on the areas it most often fails on. Tyres accounted for 5.0% of tests for this year.
- Tyres (5.0% 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.
- Lighting & signalling (2.5% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Suspension (2.3% 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 2020 Seat Leon Dynamics pass their MOT?
90.8% of the 1,282 2020 Seat Leon Dynamic MOT tests in this dataset passed — a 9.2% fail rate.
What is the most common MOT failure on a 2020 Seat Leon Dynamic?
Tyres, recorded in 5.0% of tests, followed by lighting & signalling (2.5%).
Does the 2020 Leon Dynamic get worse with mileage?
Its MOT fail rate rises from 6.6% in the 0-30k band to 16.1% in the 60-90k band.
Methodology & source. Based on 1,282 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.