1989 Vauxhall Nova — MOT failures & pass rate
Across 760 MOT tests, the 1989 Vauxhall Nova recorded an 86.2% pass rate. Against all cars of a similar age (21.3% fail rate), the 1989 Nova comes out 7.5pp better. Failures cluster in lighting & signalling, brakes and body, structure & corrosion.
What the MOT record shows
No single area dominates — lighting & signalling (8.3%) and brakes (6.5%) 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, headlamp aim and service brake performance — component mounting prescribed areas alone was recorded 33 times.
Mileage matters less than usual here: the 1989 Nova fails 10.4% of the time in the 0-30k band and 11.7% at 90-120k, a spread of only 1.3 points.
Brakes is the most common advisory, noted on 13.4% of tests — work that passed today but is likely due soon.
The trend is improving — the fail rate fell from 17.0% in 2021 to 11.6% in 2025, as the worst-kept examples leave the fleet.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Lighting & signalling | 8.3% | 63 |
| 2 | Brakes | 6.5% | 49 |
| 3 | Body, structure & corrosion | 4.2% | 32 |
| 4 | Emissions & environmental | 4.2% | 32 |
| 5 | Suspension | 4.1% | 31 |
| 6 | Visibility | 3.2% | 24 |
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 | 33 |
| 2 | Headlamp aim | 33 |
| 3 | Service brake performance | 32 |
| 4 | Non catalyst emissions | 29 |
| 5 | Washers | 20 |
| 6 | Service brake imbalance | 15 |
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 | 13.4% | 102 |
| 2 | Suspension | 12.2% | 93 |
| 3 | Tyres | 8.9% | 68 |
| 4 | Body, structure & corrosion | 8.7% | 66 |
| 5 | Emissions & environmental | 7.1% | 54 |
| 6 | Other defects | 3.8% | 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 | 183 | 10.4% |
| 30-60k | 217 | 13.4% |
| 60-90k | 238 | 17.6% |
| 90-120k | 103 | 11.7% |
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 159 | 17.0% |
| 2022 | 165 | 15.2% |
| 2023 | 144 | 12.5% |
| 2024 | 154 | 12.3% |
| 2025 | 138 | 11.6% |
What to check before buying a 1989 Nova
The failure pattern for this year is specific enough to inspect against: lighting & signalling accounted for 8.3% of tests. Start there.
- Lighting & signalling (8.3% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Brakes (6.5% 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.
- Body, structure & corrosion (4.2% of tests): The one to take seriously on older cars — corrosion to structural areas can be costly and is an MOT failure. Typical repair: £200–£1,500+.
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 1989 Vauxhall Novas pass their MOT?
86.2% of the 760 1989 Vauxhall Nova MOT tests in this dataset passed — a 13.8% fail rate.
What is the most common MOT failure on a 1989 Vauxhall Nova?
Lighting & signalling, recorded in 8.3% of tests, followed by brakes (6.5%).
Does the 1989 Nova get worse with mileage?
Its MOT fail rate rises from 10.4% in the 0-30k band to 11.7% in the 90-120k band.
Methodology & source. Based on 760 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.