SEAT Arosa MOT pass rate & common failures
The SEAT Arosa appears in 16,223 MOT tests spanning model years 1997–2022, and 72.8% of them passed. That is effectively the same as all cars of a similar age (27.3% fail rate), so the MOT record here is unremarkable in either direction. Its most common failure areas are lighting & signalling, suspension and brakes.
What the MOT record shows
Lighting & signalling dominates the failure mix at 16.0% of all tests — 4.7 points clear of suspension, so it is the first thing to check.
At component level the recurring items are headlamp aim, catalyst emissions and exhaust system — headlamp aim alone was recorded 1,242 times.
Mileage is the strongest signal on the record: 15.6% of 0-30k cars fail, rising to 31.9% once past 150k — 2.0× the risk.
Fuel type barely separates them — petrol fails 27.1% of the time against 28.1% for diesel.
Advisories point at the next bill rather than this one: suspension was flagged on 37.1% of tests without failing them.
How it compares
By model year
Every Arosa model year with a usable sample. Years with their own detailed report are linked.
| Year | Tests | Pass rate | Fail rate | Most common failure |
|---|---|---|---|---|
| 1997 | 226 | 71.2% | 28.8% | Suspension |
| 1998 | 773 | 72.8% | 27.2% | Lighting & signalling |
| 1999 | 655 | 75.4% | 24.6% | Lighting & signalling |
| 2000 | 994 | 75.0% | 25.1% | Lighting & signalling |
| 2001 | 1,844 | 74.1% | 25.9% | Lighting & signalling |
| 2002 | 3,053 | 71.5% | 28.5% | Lighting & signalling |
| 2003 | 3,766 | 73.2% | 26.8% | Lighting & signalling |
| 2004 | 4,494 | 72.1% | 27.9% | Lighting & signalling |
| 2005 | 388 | 72.9% | 27.1% | Lighting & signalling |
Most common failures (all years)
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Lighting & signalling | 16.0% | 2,592 |
| 2 | Suspension | 11.3% | 1,827 |
| 3 | Brakes | 9.4% | 1,525 |
| 4 | Body, structure & corrosion | 8.5% | 1,376 |
| 5 | Emissions & environmental | 7.9% | 1,288 |
| 6 | Visibility | 6.3% | 1,028 |
| 7 | Tyres | 5.5% | 884 |
| 8 | Steering | 2.3% | 370 |
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 | 1,242 |
| 2 | Catalyst emissions | 858 |
| 3 | Exhaust system | 789 |
| 4 | Wipers | 755 |
| 5 | Service brake performance | 747 |
| 6 | Position lamp | 709 |
| 7 | Stop lamp | 609 |
| 8 | Joints | 554 |
Top advisory categories
Advisories aren't failures, but they flag work likely needed soon — useful when budgeting.
| # | Category | % of tests with advisory | Tests |
|---|---|---|---|
| 1 | Suspension | 37.1% | 6,026 |
| 2 | Brakes | 32.9% | 5,339 |
| 3 | Tyres | 27.3% | 4,426 |
| 4 | Body, structure & corrosion | 20.3% | 3,298 |
| 5 | Emissions & environmental | 18.1% | 2,945 |
| 6 | Lighting & signalling | 14.6% | 2,371 |
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 | 842 | 15.6% |
| 30-60k | 4,422 | 23.2% |
| 60-90k | 5,526 | 28.5% |
| 90-120k | 3,582 | 30.8% |
| 120-150k | 1,219 | 29.9% |
| 150k+ | 602 | 31.9% |
Failure rate by age
By fuel type
| Fuel | Tests | Fail rate |
|---|---|---|
| Petrol | 14,852 | 27.1% |
| Diesel | 1,371 | 28.1% |
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 4,607 | 28.0% |
| 2022 | 3,775 | 27.4% |
| 2023 | 3,104 | 26.3% |
| 2024 | 2,576 | 25.8% |
| 2025 | 2,161 | 27.8% |
What to check before buying a SEAT Arosa
- Lighting & signalling (16.0% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Suspension (11.3% 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.
- Brakes (9.4% 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.
Repair costs are rough UK ballpark ranges to set expectations, not quotes — actual prices vary widely by car, parts and garage.
Frequently asked questions
What is the MOT pass rate for the SEAT Arosa?
72.8% of the 16,223 SEAT Arosa MOT tests in this dataset passed, a 27.2% fail rate, across model years 1997–2022.
What does the SEAT Arosa most often fail its MOT on?
Lighting & signalling, recorded in 16.0% of tests, then suspension (11.3%).
How much does mileage affect Arosa MOT results?
Fail rates run at 15.6% for cars in the 0-30k band and 31.9% for 150k+, a 16.3-point difference.
Is the petrol or diesel Arosa more reliable at MOT time?
On MOT-testable defects the petrol fails 27.1% of the time against 28.1% for the diesel. This covers testable items only, not engine or gearbox reliability.
Methodology & source. Based on 16,223 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.