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Vauxhall Ampera vs Vauxhall Astra: reliability comparison

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

Vauxhall Ampera
80%
MOT pass rate · 1,314 vehicles
More reliable
Vauxhall Astra
72%
MOT pass rate · 2,126,137 vehicles
Verdict: On MOT pass rate, the Vauxhall Ampera is the more reliable of the two — 80% pass first time versus 72%. It's one signal among several; check the full breakdown below.

Head to head

Measure Vauxhall Ampera Vauxhall Astra
MOT pass rate 80% ✓ 72%
MOT failure rate 20% ✓ 28%
Faults & advisories per test 1.6 ✓ 2.1
Dangerous-fault share 4% 2% ✓
Average mileage 102,693 mi 111,290 mi
Sample size (vehicles) 1,314 2,126,137

Most common faults

Vauxhall Ampera

  1. Offside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  2. Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  3. Rear Brake disc worn, pitted or scored, but not seriously weakened (1.1.14 (a) (ii))
  4. Offside Rear Brake disc worn, pitted or scored, but not seriously weakened (1.1.14 (a) (ii))
  5. Nearside Rear Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii))
  6. Nearside Rear Brake disc worn, pitted or scored, but not seriously weakened (1.1.14 (a) (ii))

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

Reliability FAQ

On MOT pass rate, the Vauxhall Ampera is the more reliable of the two — 80% pass first time versus 72%. It's one signal among several; check the full breakdown below.

Full Vauxhall Ampera report Full Vauxhall Astra 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.