2021 Seat Arona Fr Ecotsi — MOT failures & pass rate
Across 6,247 MOT tests analysed for the 2021 Seat Arona Fr Ecotsi, the most common recorded failure areas were brakes, tyres and visibility. Its pass rate of 90.0% was below the average for cars of a similar age (91.2%). Higher-mileage examples failed more often — 18.3% in the 60-90k group versus 8.3% in the 0-30k group.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Brakes | 5.5% | 342 |
| 2 | Tyres | 3.0% | 189 |
| 3 | Visibility | 2.3% | 146 |
| 4 | Lighting & signalling | 1.7% | 106 |
| 5 | Seat belts & restraints | 0.9% | 59 |
| 6 | Emissions & environmental | 0.3% | 21 |
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 | 237 |
| 2 | Brake discs | 181 |
| 3 | Service brake performance | 122 |
| 4 | Washers | 104 |
| 5 | Headlamp aim | 97 |
| 6 | Wipers | 60 |
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 | 23.9% | 1,495 |
| 2 | Tyres | 19.0% | 1,188 |
| 3 | Other defects | 6.6% | 410 |
| 4 | Visibility | 1.9% | 116 |
| 5 | Steering | 1.2% | 76 |
| 6 | Suspension | 1.1% | 67 |
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 | 3,803 | 8.3% |
| 30-60k | 2,205 | 12.1% |
| 60-90k | 229 | 18.3% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2023 | 136 | 7.3% |
| 2024 | 3,078 | 10.5% |
| 2025 | 3,030 | 9.6% |
What to check before buying a 2021 Arona Fr Ecotsi
Before buying a 2021 Seat Arona Fr Ecotsi, focus on the areas it most often fails on. Brakes accounted for 5.5% of tests for this year.
- Brakes (5.5% 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 (3.0% 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.
- Visibility (2.3% of tests): Wipers, washers, mirrors and screen damage — usually inexpensive, but check for chips in the driver's line of sight. Typical repair: £15–£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 Fr Ecotsis pass their MOT?
90.0% of the 6,247 2021 Seat Arona Fr Ecotsi MOT tests in this dataset passed — a 10.0% fail rate.
What is the most common MOT failure on a 2021 Seat Arona Fr Ecotsi?
Brakes, recorded in 5.5% of tests, followed by tyres (3.0%).
Does the 2021 Arona Fr Ecotsi get worse with mileage?
Its MOT fail rate rises from 8.3% in the 0-30k band to 18.3% in the 60-90k band.
Methodology & source. Based on 6,247 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.