2004 Jaguar XJR: common problems and what to check
What gets flagged at MOT on 2004 Jaguar XJRs, from 167 tests in 2025, plus known faults and what to look at before you buy one.
Small sample: only 167 of these were MOT tested in 2025, so treat the percentages as rough. The known faults below don't depend on it.
What stands out
Parts flagged at MOT more often on 2004 Jaguar XJRs than on all cars registered in 2004.
- Ball joint dust cover3.9× usualJaguar XJR18.6% All 2004 cars4.8%
Failed outright at MOT: 9.6%, against 1.8% of all 2004 cars. The rest were advisories or minor defects.
Rough price £60–£150 (one joint) ClickMechanicAt the viewing: Listen for knocking over bumps and check the rubber boots behind the wheels aren't split.
By area
The share of 2004 Jaguar XJR MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.
- Suspension43% 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.
- Brakes26% 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.
- Tyres18% 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 electrics17% of testsRough price £10–£80
At the viewing: Ask a friend to check every light, including brake lights and indicators, while you operate them.
- Oil and fluid leaks12% 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.
- Wipers, windscreen and mirrors8% of testsRough price £15–£250
At the viewing: Check for chips in the driver's view, and test the wipers and washers.
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Other years
| Year | MOT tests | Most flagged |
|---|---|---|
| 2007 | 151 | Suspension 37% |
| 2006 | 124 | Suspension 34% |
| 2003 | 231 | Suspension 38% |
| 2001 | 114 | Suspension 34% |
| 2000 | 112 | Suspension 28% |
| 1999 | 105 | Suspension 30% |
| 1998 | 183 | Suspension 37% |
Where this comes from: the DVSA's anonymised results for every MOT test in Great Britain in 2025, counting tests of 2004 Jaguar XJRs registered in 2004. "Flagged" includes advisories, so it isn't the same as a fail rate. How we score