1998 Jaguar XK8 · 3,797 MOT tests
1998 Jaguar XK8 reliability
1998 Jaguar XK8s fail 25.8% of first MOT tests, 28% fewer MOT fails than the average car its age and mileage, ranking 8 of 9 XK8 years (3,797 DVSA tests, 2022 to 2024).
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- first-time fail rate (all Jaguar XK8s: 25.9%)
- 25.8%
- first-time fail rate (all Jaguar XK8s: 25.9%)
- fails than cars of the same age and mileage
- 28% fewer
- fails than cars of the same age and mileage
- typical miles at its MOT, aged about 25
- 89,852
- typical miles at its MOT, aged about 25
- MOT tests, 2022 to 2024
- 3,797
- MOT tests, 2022 to 2024
Year on year
1998 against the years either side
- 1997 cars: 29% fewer MOT fails than the average car its age (the 1998 car does worse)
- 1999 cars: 29% fewer MOT fails than the average car its age (the 1998 car does worse)
- Strong point: steering, 67% fewer fails than comparable cars.
Common problems
What fails on a 1998 Jaguar XK8
Fail rate by area
- Suspension10.2%
- Lights and electrics9.8%
- Brakes9.1%
- Body, chassis and structure4.7%
- Exhaust, emissions and leaks4.3%
- Windscreen, wipers and mirrors3.6%
- Tyres2.7%
Average for cars of the same age and mileage
Top failures
ABS warning lamp shows a fault 2.61%
A lit ABS warning means the anti-lock system may not work, so wheels could lock during emergency braking.
Suspension mounting area seriously corroded 2.42%
Corrosion near suspension mountings can seriously weaken the body structure, so an expert inspection is needed.
Lambda reading outside specified limits 1.9%
An out-of-range lambda reading suggests poor fuel mixture or a failing catalytic converter, so diagnosis is needed.
Wiper blade not clearing windscreen 1.55%
Wipers that do not clear the windscreen reduce visibility in rain, which is a safety risk, so replace them.
Dipped beam headlamp not working 1.53%
A failed dipped beam makes it hard to see and be seen at night, so the lamp needs fixing before driving.
Rigid brake pipe excessively corroded 1.34%
Badly corroded brake pipes can leak or fail, which can cause a loss of braking, so repair is urgent.
Common advisories
Brake pipes corroded and greasy (8.66%) · Tyre worn close to legal limit (7.77%) · Wheel bearing slight play (7.69%) · Tyre slightly damaged or cracking (6.53%) · Coil spring showing some corrosion (5.77%) · Engine oil leak, not excessive (5.45%)
Is a 1998 Jaguar XK8 reliable?
1998 Jaguar XK8s fail 25.8% of first MOT tests, 28% fewer MOT fails than the average car its age and mileage, ranking 8 of 9 XK8 years (3,797 DVSA tests, 2022 to 2024).
What fails on a 1998 Jaguar XK8 MOT?
Most often abs warning lamp shows a fault (2.61% of tests), suspension mounting area seriously corroded (2.42% of tests), lambda reading outside specified limits (1.9% of tests).
How many miles should a 1998 Jaguar XK8 have done?
At its MOT aged about 25, a typical 1998 Jaguar XK8 shows 89,852 miles. Much higher or lower is worth asking about.
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