1985 Porsche 944 — MOT failures & pass rate
The 1985 Porsche 944 passed 81.0% of its 1,031 recorded MOT tests. Against coupes & convertibles of a similar age (15.7% fail rate), the 1985 944 comes out 3.3pp worse. Failures cluster in lighting & signalling, visibility and brakes.
What the MOT record shows
No single area dominates — lighting & signalling (11.1%) and visibility (10.6%) are close, so failures are spread across several systems rather than one weak point.
At component level the recurring items are washers, service brake performance and headlamp aim — washers alone was recorded 101 times.
Mileage matters less than usual here: the 1985 944 fails 19.7% of the time in the 0-30k band and 17.6% at 150k+, a spread of only 2.1 points.
Suspension is the most common advisory, noted on 23.1% of tests — work that passed today but is likely due soon.
The trend is improving — the fail rate fell from 22.2% in 2021 to 15.0% in 2025, as the worst-kept examples leave the fleet.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Lighting & signalling | 11.1% | 114 |
| 2 | Visibility | 10.6% | 109 |
| 3 | Brakes | 7.7% | 79 |
| 4 | Suspension | 5.3% | 55 |
| 5 | Emissions & environmental | 3.6% | 37 |
| 6 | Body, structure & corrosion | 2.9% | 30 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Washers | 101 |
| 2 | Service brake performance | 63 |
| 3 | Headlamp aim | 62 |
| 4 | Component mounting prescribed areas | 38 |
| 5 | Position lamp | 35 |
| 6 | Rear fog lamp | 32 |
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 | 23.1% | 238 |
| 2 | Brakes | 21.1% | 217 |
| 3 | Emissions & environmental | 14.3% | 148 |
| 4 | Tyres | 9.0% | 93 |
| 5 | Body, structure & corrosion | 8.8% | 91 |
| 6 | Other defects | 8.1% | 83 |
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 | 244 | 19.7% |
| 30-60k | 229 | 20.1% |
| 60-90k | 240 | 19.6% |
| 90-120k | 142 | 15.5% |
| 120-150k | 83 | 19.3% |
| 150k+ | 91 | 17.6% |
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 234 | 22.2% |
| 2022 | 228 | 19.3% |
| 2023 | 220 | 18.2% |
| 2024 | 189 | 19.1% |
| 2025 | 160 | 15.0% |
What to check before buying a 1985 944
The failure pattern for this year is specific enough to inspect against: lighting & signalling accounted for 11.1% of tests. Start there.
- Lighting & signalling (11.1% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Visibility (10.6% 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.
- Brakes (7.7% 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 1985 Porsche 944s pass their MOT?
81.0% of the 1,031 1985 Porsche 944 MOT tests in this dataset passed — a 19.0% fail rate.
What is the most common MOT failure on a 1985 Porsche 944?
Lighting & signalling, recorded in 11.1% of tests, followed by visibility (10.6%).
Does the 1985 944 get worse with mileage?
Its MOT fail rate rises from 19.7% in the 0-30k band to 17.6% in the 150k+ band.
Methodology & source. Based on 1,031 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.