1998 Fiat Cinquecento — MOT failures & pass rate
Across 267 MOT tests, the 1998 Fiat Cinquecento recorded a 72.3% pass rate. Against all cars of a similar age (25.7% fail rate), the 1998 Cinquecento comes out 2.0pp worse. Failures cluster in lighting & signalling, brakes and visibility.
What the MOT record shows
No single area dominates — lighting & signalling (16.1%) and brakes (15.0%) are close, so failures are spread across several systems rather than one weak point.
At component level the recurring items are service brake performance, headlamp aim and service brake imbalance — service brake performance alone was recorded 26 times.
Mileage is the strongest signal on the record: 21.6% of 0-30k cars fail, rising to 40.8% once past 90-120k.
Advisories point at the next bill rather than this one: brakes was flagged on 22.1% of tests without failing them.
The trend is improving — the fail rate fell from 37.5% in 2021 to 25.0% in 2025, as the worst-kept examples leave the fleet.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Lighting & signalling | 16.1% | 43 |
| 2 | Brakes | 15.0% | 40 |
| 3 | Visibility | 9.4% | 25 |
| 4 | Body, structure & corrosion | 9.4% | 25 |
| 5 | Emissions & environmental | 7.5% | 20 |
| 6 | Suspension | 7.5% | 20 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Service brake performance | 26 |
| 2 | Headlamp aim | 25 |
| 3 | Service brake imbalance | 23 |
| 4 | Component mounting prescribed areas | 21 |
| 5 | Catalyst emissions | 20 |
| 6 | Wipers | 17 |
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 | 22.1% | 59 |
| 2 | Body, structure & corrosion | 19.1% | 51 |
| 3 | Tyres | 18.0% | 48 |
| 4 | Suspension | 17.6% | 47 |
| 5 | Emissions & environmental | 17.6% | 47 |
| 6 | Lighting & signalling | 10.9% | 29 |
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 | 37 | 21.6% |
| 30-60k | 103 | 28.2% |
| 60-90k | 53 | 18.9% |
| 90-120k | 49 | 40.8% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 80 | 37.5% |
| 2022 | 58 | 24.1% |
| 2023 | 52 | 23.1% |
| 2024 | 37 | 21.6% |
| 2025 | 40 | 25.0% |
What to check before buying a 1998 Cinquecento
On a 1998 Cinquecento, lighting & signalling is what the MOT record says goes wrong most — it appeared in 16.1% of tests. Check these areas before you commit.
- Lighting & signalling (16.1% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Brakes (15.0% 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.
- Visibility (9.4% 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 1998 Fiat Cinquecentos pass their MOT?
72.3% of the 267 1998 Fiat Cinquecento MOT tests in this dataset passed — a 27.7% fail rate.
What is the most common MOT failure on a 1998 Fiat Cinquecento?
Lighting & signalling, recorded in 16.1% of tests, followed by brakes (15.0%).
Does the 1998 Cinquecento get worse with mileage?
Its MOT fail rate rises from 21.6% in the 0-30k band to 40.8% in the 90-120k band.
Methodology & source. Based on 267 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.