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Vauxhall Astra vs Vauxhall Cavallier: reliability comparison

MOT pass rates, common faults and mileage compared from real UK MOT data.

Vauxhall Astra
72%
MOT pass rate · 2,126,137 vehicles
Vauxhall Cavallier
50%
MOT pass rate · 1 vehicles
Verdict: On MOT pass rate the Vauxhall Astra (72%) and Vauxhall Cavallier (50%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Head to head

Measure Vauxhall Astra Vauxhall Cavallier
MOT pass rate 72% ✓ 50%
MOT failure rate 28% ✓ 50%
Faults & advisories per test 2.1 ✓ 4.0
Dangerous-fault share 2% 0% ✓
Average mileage 111,290 mi 123,786 mi
Sample size (vehicles) 2,126,137 1

Most common faults

Vauxhall Astra

  1. Nearside Front Tyre worn close to the legal limit (4.1.E.1)
  2. Offside Front Tyre worn close to the legal limit (4.1.E.1)
  3. Oil leak, but not excessive (8.4.1 (a) (i))
  4. Nearside Rear Tyre worn close to the legal limit (4.1.E.1)
  5. Offside Rear Tyre worn close to the legal limit (4.1.E.1)
  6. Oil leak

Vauxhall Cavallier

  1. Hazard warning switch faulty (1.4.B.1d)
  2. Nearside Front Headlamp aim too high when the centre of the headlamp is below 850mm from the ground (1.6.B2)
  3. Nearside Rear Service brake: service brake efficiency only just met. It would appear that the braking system requires adjustment or repair. (3.7.B.7)
  4. Nearside Rear Tyre has a bulge, caused by separation or partial failure of its structure (4.1.D.1b)
  5. Offside Front Headlamp aim too low when the centre of the headlamp is below 850mm from the ground (1.6.B2)
  6. Offside Front Headlamp insecure (1.7.3)

Reliability FAQ

On MOT pass rate the Vauxhall Astra (72%) and Vauxhall Cavallier (50%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Full Vauxhall Astra report Full Vauxhall Cavallier 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.