1993 Volvo 900 Series — MOT failures & pass rate
1,890 MOT tests on the 1993 Volvo 900 Series are in this dataset, and 76.3% of them passed. All cars of a similar age fail at 23.4%, so the 1993 900 Series sits squarely on the average. Failures cluster in lighting & signalling, emissions & environmental and brakes.
What the MOT record shows
Lighting & signalling dominates the failure mix at 12.0% of all tests — 3.1 points clear of emissions & environmental, so it is the first thing to check.
At component level the recurring items are catalyst emissions, exhaust system and position lamp — catalyst emissions alone was recorded 191 times.
A 150k+ example is materially riskier than a 0-30k one: 25.4% versus 29.7%.
Advisories point at the next bill rather than this one: brakes was flagged on 27.8% of tests without failing them.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Lighting & signalling | 12.0% | 227 |
| 2 | Emissions & environmental | 8.9% | 169 |
| 3 | Brakes | 8.3% | 156 |
| 4 | Body, structure & corrosion | 7.2% | 136 |
| 5 | Suspension | 6.4% | 121 |
| 6 | Visibility | 4.9% | 92 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Catalyst emissions | 191 |
| 2 | Exhaust system | 107 |
| 3 | Position lamp | 105 |
| 4 | Wipers | 75 |
| 5 | Component mounting prescribed areas | 69 |
| 6 | Stop lamp | 62 |
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 | 27.8% | 526 |
| 2 | Suspension | 27.7% | 524 |
| 3 | Emissions & environmental | 24.6% | 464 |
| 4 | Tyres | 23.8% | 450 |
| 5 | Body, structure & corrosion | 18.8% | 356 |
| 6 | Other defects | 16.1% | 305 |
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 | 29.7% |
| 30-60k | 65 | 13.9% |
| 60-90k | 156 | 19.9% |
| 90-120k | 335 | 23.0% |
| 120-150k | 411 | 22.9% |
| 150k+ | 885 | 25.4% |
By fuel type
| Fuel | Tests | Fail rate |
|---|---|---|
| Petrol | 1,795 | 23.8% |
| Diesel | 95 | 21.1% |
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 450 | 24.4% |
| 2022 | 432 | 23.6% |
| 2023 | 369 | 22.8% |
| 2024 | 327 | 22.0% |
| 2025 | 312 | 25.3% |
What to check before buying a 1993 900 Series
On a 1993 900 Series, lighting & signalling is what the MOT record says goes wrong most — it appeared in 12.0% of tests. Check these areas before you commit.
- Lighting & signalling (12.0% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Emissions & environmental (8.9% of tests): More common on older diesels (DPF/EGR) — can be expensive; check for warning lights and smoke. Typical repair: £100–£600.
- Brakes (8.3% 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 1993 Volvo 900 Seriess pass their MOT?
76.3% of the 1,890 1993 Volvo 900 Series MOT tests in this dataset passed — a 23.6% fail rate.
What is the most common MOT failure on a 1993 Volvo 900 Series?
Lighting & signalling, recorded in 12.0% of tests, followed by emissions & environmental (8.9%).
Does the 1993 900 Series get worse with mileage?
Its MOT fail rate rises from 29.7% in the 0-30k band to 25.4% in the 150k+ band.
Methodology & source. Based on 1,890 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.