Jaguar 420g vs Jaguar Xf: reliability comparison
MOT pass rates, common faults and mileage compared from real UK MOT data.
Jaguar 420g
82%
MOT pass rate · 200 vehicles
Jaguar Xf
81%
MOT pass rate · 116,331 vehicles
Verdict: On MOT pass rate the Jaguar 420g (82%) and Jaguar Xf (81%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Head to head
| Measure | Jaguar 420g | Jaguar Xf |
|---|---|---|
| MOT pass rate | 82% ✓ | 81% |
| MOT failure rate | 18% ✓ | 19% |
| Faults & advisories per test | 1.6 | 1.6 |
| Dangerous-fault share | 1% ✓ | 4% |
| Average mileage | 63,479 mi | 98,854 mi |
| Sample size (vehicles) | 200 | 116,331 |
Most common faults
Jaguar 420g
- Oil leak
- Windscreen washer provides insufficient washer liquid (8.2.3)
- Steering column top bearing slightly worn (2.1.2c)
- Nearside Rear wheel bearing has slight play (2.6.2)
- Parking brake: efficiency below requirements (3.7.B.7)
- Offside Rear wheel bearing has slight play (2.6.2)
Jaguar Xf
- Offside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e))
- Nearside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e))
- Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
- Offside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
- Rear Sub-frame corroded but not seriously weakened (5.3.3 (b) (i))
- Rear Brake pad(s) wearing thin (1.1.13 (a) (ii))
Reliability FAQ
On MOT pass rate the Jaguar 420g (82%) and Jaguar Xf (81%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Full Jaguar 420g report Full Jaguar Xf 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.