Jaguar Xj vs Jaguar Xj-sc v12 aut: 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-sc v12 aut
75%
MOT pass rate · 1 vehicles
Verdict: On MOT pass rate the Jaguar Xj (77%) and Jaguar Xj-sc v12 aut (75%) 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-sc v12 aut |
|---|---|---|
| MOT pass rate | 77% ✓ | 75% |
| MOT failure rate | 23% ✓ | 25% |
| Faults & advisories per test | 2.0 ✓ | 2.8 |
| Dangerous-fault share | 1% | 0% ✓ |
| Average mileage | 113,306 mi | 82,570 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-sc v12 aut
- Nearside Headlamp aim too low (1.8)
- Nearside Rear Trailing arm rubber bush deteriorated but not resulting in excessive movement (2.4.G.2)
- Nearside Seat belt retracting mechanism defective (5.2.5b)
- Nearside Steering rack gaiter split (2.2.D.2d)
- Offside Headlamp aim too low (1.8)
- Offside Headlamp not working on main beam (1.7.5a)
Reliability FAQ
On MOT pass rate the Jaguar Xj (77%) and Jaguar Xj-sc v12 aut (75%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Full Jaguar Xj report Full Jaguar Xj-sc v12 aut 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.