2021 Seat Arona Xcellence Lux Ecotsi S-A — MOT failures & pass rate
Across 1,610 MOT tests analysed for the 2021 Seat Arona Xcellence Lux Ecotsi S-A, the most common recorded failure areas were brakes, tyres and lighting & signalling. Its pass rate of 92.7% was above the average for cars of a similar age (91.2%).
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Brakes | 3.9% | 63 |
| 2 | Tyres | 2.9% | 46 |
| 3 | Lighting & signalling | 1.6% | 26 |
| 4 | Visibility | 0.8% | 13 |
| 5 | Seat belts & restraints | 0.6% | 9 |
| 6 | Road wheels | 0.3% | 4 |
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 | 35 |
| 2 | Service brake performance | 32 |
| 3 | Brake discs | 28 |
| 4 | Headlamp aim | 24 |
| 5 | Tread depth | 12 |
| 6 | Washers | 7 |
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 | 19.9% | 321 |
| 2 | Tyres | 13.0% | 209 |
| 3 | Other defects | 5.3% | 85 |
| 4 | Visibility | 2.0% | 32 |
| 5 | Suspension | 1.2% | 19 |
| 6 | Steering | 1.1% | 18 |
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 | 1,190 | 6.0% |
| 30-60k | 406 | 10.6% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2024 | 823 | 7.6% |
| 2025 | 761 | 6.7% |
What to check before buying a 2021 Arona Xcellence Lux Ecotsi S-A
Before buying a 2021 Seat Arona Xcellence Lux Ecotsi S-A, focus on the areas it most often fails on. Brakes accounted for 3.9% of tests for this year.
- Brakes (3.9% 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.
- Tyres (2.9% 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 (1.6% 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 2021 Seat Arona Xcellence Lux Ecotsi S-As pass their MOT?
92.7% of the 1,610 2021 Seat Arona Xcellence Lux Ecotsi S-A MOT tests in this dataset passed — a 7.3% fail rate.
What is the most common MOT failure on a 2021 Seat Arona Xcellence Lux Ecotsi S-A?
Brakes, recorded in 3.9% of tests, followed by tyres (2.9%).
Does the 2021 Arona Xcellence Lux Ecotsi S-A get worse with mileage?
Its MOT fail rate rises from 6.0% in the 0-30k band to 10.6% in the 30-60k band.
Methodology & source. Based on 1,610 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.