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Jaguar Xj vs Jaguar Xj 4.2c auto: 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 4.2c auto
40%
MOT pass rate · 1 vehicles
Verdict: On MOT pass rate the Jaguar Xj (77%) and Jaguar Xj 4.2c auto (40%) 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 4.2c auto
MOT pass rate 77% ✓ 40%
MOT failure rate 23% ✓ 60%
Faults & advisories per test 2.0 ✓ 7.2
Dangerous-fault share 1% ✓ 14%
Average mileage 113,306 mi 71,766 mi
Sample size (vehicles) 80,612 1

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 Xj 4.2c auto

  1. surface corrosion to front and rear brake discs
  2. welded repair s have been carried out to osf floor,nsf chassis leg and bulkhead on os
  3. center exhaust blowing
  4. offside front brake hose ferrules corroded
  5. rack bushs worn
  6. slight play in both bottom ball joints

Reliability FAQ

On MOT pass rate the Jaguar Xj (77%) and Jaguar Xj 4.2c auto (40%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Full Jaguar Xj report Full Jaguar Xj 4.2c auto 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.