1988 Ford Fiesta — MOT failures & pass rate
The 1988 Ford Fiesta passed 84.0% of its 2,003 recorded MOT tests. That is 4.9 percentage points better than superminis of a similar age, which fail at 21.0%. Failures cluster in lighting & signalling, suspension and brakes.
What the MOT record shows
No single area dominates — lighting & signalling (9.0%) and suspension (7.5%) are close, so failures are spread across several systems rather than one weak point.
At component level the recurring items are component mounting prescribed areas, non catalyst emissions and service brake performance — component mounting prescribed areas alone was recorded 146 times.
Mileage is the strongest signal on the record: 11.8% of 0-30k cars fail, rising to 21.1% once past 90-120k.
Advisories point at the next bill rather than this one: suspension was flagged on 17.4% of tests without failing them.
The trend is improving — the fail rate fell from 16.7% in 2021 to 13.2% in 2025, as the worst-kept examples leave the fleet.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Lighting & signalling | 9.0% | 180 |
| 2 | Suspension | 7.5% | 151 |
| 3 | Brakes | 6.7% | 134 |
| 4 | Emissions & environmental | 5.4% | 108 |
| 5 | Body, structure & corrosion | 4.1% | 82 |
| 6 | Visibility | 3.4% | 69 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Component mounting prescribed areas | 146 |
| 2 | Non catalyst emissions | 89 |
| 3 | Service brake performance | 82 |
| 4 | Service brake imbalance | 81 |
| 5 | Headlamp aim | 76 |
| 6 | Wheel bearings | 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 | Suspension | 17.4% | 348 |
| 2 | Brakes | 12.5% | 250 |
| 3 | Body, structure & corrosion | 11.0% | 221 |
| 4 | Emissions & environmental | 10.7% | 214 |
| 5 | Tyres | 9.2% | 185 |
| 6 | Other defects | 5.3% | 107 |
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 | 422 | 11.8% |
| 30-60k | 727 | 15.3% |
| 60-90k | 663 | 18.1% |
| 90-120k | 185 | 21.1% |
By fuel type
| Fuel | Tests | Fail rate |
|---|---|---|
| Petrol | 1,968 | 16.0% |
| Diesel | 35 | 17.1% |
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 396 | 16.7% |
| 2022 | 434 | 17.7% |
| 2023 | 395 | 17.0% |
| 2024 | 408 | 15.2% |
| 2025 | 370 | 13.2% |
What to check before buying a 1988 Fiesta
On a 1988 Fiesta, lighting & signalling is what the MOT record says goes wrong most — it appeared in 9.0% of tests. Check these areas before you commit.
- Lighting & signalling (9.0% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Suspension (7.5% 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 (6.7% 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
How many 1988 Ford Fiestas pass their MOT?
84.0% of the 2,003 1988 Ford Fiesta MOT tests in this dataset passed — a 16.0% fail rate.
What is the most common MOT failure on a 1988 Ford Fiesta?
Lighting & signalling, recorded in 9.0% of tests, followed by suspension (7.5%).
Does the 1988 Fiesta get worse with mileage?
Its MOT fail rate rises from 11.8% in the 0-30k band to 21.1% in the 90-120k band.
Methodology & source. Based on 2,003 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.