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Jaguar Xj vs Jaguar Xj6 c: 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 Xj6 c
86%
MOT pass rate · 32 vehicles
Verdict: On MOT pass rate the Jaguar Xj (77%) and Jaguar Xj6 c (86%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Head to head

Measure Jaguar Xj Jaguar Xj6 c
MOT pass rate 77% 86% ✓
MOT failure rate 23% 14% ✓
Faults & advisories per test 2.0 0.9 ✓
Dangerous-fault share 1% 0% ✓
Average mileage 113,306 mi 50,795 mi
Sample size (vehicles) 80,612 32

Most common faults

Jaguar Xj

  1. Nearside Rear Tyre worn close to the legal limit (4.1.E.1)
  2. Offside Rear Tyre worn close to the legal limit (4.1.E.1)
  3. Nearside Front Tyre worn close to the legal limit (4.1.E.1)
  4. Offside Front Tyre worn close to the legal limit (4.1.E.1)
  5. Nearside Front wheel bearing has slight play (2.5.A.3c)
  6. Offside Front wheel bearing has slight play (2.5.A.3c)

Jaguar Xj6 c

  1. Exhaust has a minor leak of exhaust gases (7.1.2)
  2. Parking brake lever has little reserve travel (3.1.6b)
  3. all 4 tyres have cracks in treads
  4. park brake only just passed at 19%
  5. Nearside Rear brake disc worn, pitted or scored, but not seriously weakened (3.5.1i)
  6. Offside Rear brake disc worn, pitted or scored, but not seriously weakened (3.5.1i)

Reliability FAQ

On MOT pass rate the Jaguar Xj (77%) and Jaguar Xj6 c (86%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Full Jaguar Xj report Full Jaguar Xj6 c 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.