Jaguar Xj vs Jaguar Xj l supercharged: reliability comparison
MOT pass rates, common faults and mileage compared from real UK MOT data.
Jaguar Xj
77%
MOT pass rate · 80,612 vehicles
Jaguar Xj l supercharged
67%
MOT pass rate · 1 vehicles
Verdict: On MOT pass rate the Jaguar Xj (77%) and Jaguar Xj l supercharged (67%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Head to head
| Measure | Jaguar Xj | Jaguar Xj l supercharged |
|---|---|---|
| MOT pass rate | 77% ✓ | 67% |
| MOT failure rate | 23% ✓ | 33% |
| Faults & advisories per test | 2.0 | 1.3 ✓ |
| Dangerous-fault share | 1% ✓ | 25% |
| Average mileage | 113,306 mi | 76,566 mi |
| Sample size (vehicles) | 80,612 | 1 |
Most common faults
Jaguar Xj
- Nearside Rear Tyre worn close to the legal limit (4.1.E.1)
- Offside Rear Tyre worn close to the legal limit (4.1.E.1)
- Nearside Front Tyre worn close to the legal limit (4.1.E.1)
- Offside Front Tyre worn close to the legal limit (4.1.E.1)
- Nearside Front wheel bearing has slight play (2.5.A.3c)
- Offside Front wheel bearing has slight play (2.5.A.3c)
Jaguar Xj l supercharged
- Front Registration plate does not conform to the specified requirements (0.1 (d))
- Nearside Rear Tyre slightly damaged/cracking or perishing Perished and splitting on inside sidewall. (5.2.3 (d) (ii))
- Rear Registration plate does not conform to the specified requirements (0.1 (d))
- Offside Rear Outer Tyre has a bulge, caused by separation or partial failure of its structure Sidewall. (5.2.3 (d) (ii))
Reliability FAQ
On MOT pass rate the Jaguar Xj (77%) and Jaguar Xj l supercharged (67%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Full Jaguar Xj report Full Jaguar Xj l supercharged report Most reliable cars
Pass rates are computed over completed (pass/fail) MOT tests. Reliability also depends on age, mileage and upkeep — see each model's page for the full picture.