2004 Mazda RX-7: common problems and MOT failures
What MOT testers find on the Mazda RX-7 first registered in 2004: we looked at the 101 MOTs these cars had during 2023–2025. Plus known faults and what to look at before you buy one.
Small sample: there were only 101 MOTs of these cars during 2023–2025, so treat the percentages as rough. The known faults below don't depend on it.
Common 2004 Mazda RX-7 MOT failures and advisories
The share of 2004 Mazda RX-7 MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.
- 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.
- Brakes12% 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.
- Exhaust and emissions9% of testsRough price £100–£1,200
At the viewing: Look for black soot in the tailpipe, listen for blowing from the exhaust and check for engine or DPF warning lights.
- Oil and fluid leaks9% 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.
- Tyres9% 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.
- Lights and electrics7% of testsRough price £10–£80
At the viewing: Ask a friend to check every light, including brake lights and indicators, while you operate them.
Questions to ask the seller before buying a 2004 Mazda RX-7
Ask before you travel to see it. A seller who knows the car will have answers, and receipts.
- Can I see the service history and receipts for any big jobs?
Looking at a Mazda RX-7?
Check the actual car: its own MOT history, mileage and what to ask the seller. Free, no sign-up.
Other years
Every year of the Mazda RX-7 compared
| Year | MOT tests | Most flagged |
|---|---|---|
| 2026 | – | Too new for MOT data |
| 2003 | 116 | Suspension 12% |
| 1995 | – | Too few tests |
| 1994 | – | Too few tests |
| 1993 | – | Too few tests |
| 1992 | 116 | Suspension 20% |
| 1991 | – | Too few tests |
| 1990 | – | Too few tests |
| 1989 | – | Too few tests |
| 1988 | – | Too few tests |
| 1987 | – | Too few tests |
| 1986 | – | Too few tests |
| 1985 | – | Too few tests |
| 1984 | – | Too few tests |
| 1983 | – | Too few tests |
| 1982 | – | Too few tests |
| 1981 | – | Too few tests |
Where this comes from: the DVSA's anonymised results for every MOT test done in Great Britain during 2023–2025, counting the MOTs of Mazda RX-7 cars first registered in 2004. "Flagged" includes advisories, so it isn't the same as a fail rate. How we score