2021 Fiat 500 Pop Mhev — MOT failures & pass rate
Across 1,432 MOT tests analysed for the 2021 Fiat 500 Pop Mhev, the most common recorded failure areas were tyres, lighting & signalling and visibility. Its pass rate of 89.9% was below the average for cars of a similar age (91.2%).
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Tyres | 6.6% | 94 |
| 2 | Lighting & signalling | 3.4% | 48 |
| 3 | Visibility | 2.9% | 42 |
| 4 | Brakes | 1.1% | 16 |
| 5 | Body, structure & corrosion | 0.6% | 8 |
| 6 | Emissions & environmental | 0.5% | 7 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Tread depth | 49 |
| 2 | Headlamp aim | 28 |
| 3 | Wipers | 27 |
| 4 | Washers | 22 |
| 5 | Headlamp | 13 |
| 6 | Rbt (sp) | 9 |
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 | 23.5% | 337 |
| 2 | Brakes | 5.5% | 79 |
| 3 | Other defects | 3.1% | 44 |
| 4 | Suspension | 2.1% | 30 |
| 5 | Road wheels | 1.8% | 26 |
| 6 | Visibility | 1.3% | 19 |
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 | 908 | 8.6% |
| 30-60k | 480 | 12.9% |
| 60-90k | 44 | 11.4% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2024 | 703 | 10.7% |
| 2025 | 717 | 9.3% |
What to check before buying a 2021 500 Pop Mhev
Before buying a 2021 Fiat 500 Pop Mhev, focus on the areas it most often fails on. Tyres accounted for 6.6% of tests for this year.
- Tyres (6.6% 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 (3.4% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Visibility (2.9% 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 Fiat 500 Pop Mhevs pass their MOT?
89.9% of the 1,432 2021 Fiat 500 Pop Mhev MOT tests in this dataset passed — a 10.1% fail rate.
What is the most common MOT failure on a 2021 Fiat 500 Pop Mhev?
Tyres, recorded in 6.6% of tests, followed by lighting & signalling (3.4%).
Does the 2021 500 Pop Mhev get worse with mileage?
Its MOT fail rate rises from 8.6% in the 0-30k band to 11.4% in the 60-90k band.
Methodology & source. Based on 1,432 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.