1990 Porsche 944: common problems and what to check
What gets flagged at MOT on 1990 Porsche 944s, from 323 tests in 2025, plus known faults and what to look at before you buy one.
Small sample: only 323 of these were MOT tested in 2025, so treat the percentages as rough. The known faults below don't depend on it.
What gets flagged at MOT
The share of 1990 Porsche 944 MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.
- Brakes19% of testsRough price £150–£350
At the viewing: Look for a lip on the disc edges and feel for judder or pulling when braking firmly from about 40mph.
- Lights and electrics19% of testsRough price £10–£80
At the viewing: Ask a friend to check every light, including brake lights and indicators, while you operate them.
- Suspension16% of testsRough price £120–£400
At the viewing: Listen for knocks over speed bumps, and look behind each front wheel for a snapped coil spring.
- Tyres15% of testsRough price £70–£150
At the viewing: Check the tread on all four tyres, including the inside edges, and look for cracks or bulges.
- Oil and fluid leaks13% of testsRough price £80–£600
At the viewing: Look under the engine and on the ground where the car is usually parked for fresh oil or fluid.
- Rust and bodywork8% of testsRough price £150–£1,000
At the viewing: Check the sills, wheel arches and underneath for rust, and look along the panels for uneven gaps or paint.
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Other years
| Year | MOT tests | Most flagged |
|---|---|---|
| 1992 | 144 | Lights and electrics 21% |
| 1991 | 276 | Brakes 19% |
Where this comes from: the DVSA's anonymised results for every MOT test in Great Britain in 2025, counting tests of 1990 Porsche 944s registered in 1990. "Flagged" includes advisories, so it isn't the same as a fail rate. How we score