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Vauxhall Astra vs Vauxhall Viaro: 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 Viaro
60%
MOT pass rate · 1 vehicles
Verdict: On MOT pass rate the Vauxhall Astra (72%) and Vauxhall Viaro (60%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Head to head

Measure Vauxhall Astra Vauxhall Viaro
MOT pass rate 72% ✓ 60%
MOT failure rate 28% ✓ 40%
Faults & advisories per test 2.1 ✓ 2.9
Dangerous-fault share 2% ✓ 9%
Average mileage 111,290 mi 174,631 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 Viaro

  1. Nearside Rear Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii))
  2. Nearside Rear Tyre worn close to the legal limit (4.1.E.1)
  3. front and rear disc lipped
  4. slight movememt in o/s/f top mount
  5. Windscreen has damage to an area less than a 40mm circle outside zone 'A' (8.3.1d)
  6. Oil leak

Reliability FAQ

On MOT pass rate the Vauxhall Astra (72%) and Vauxhall Viaro (60%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Full Vauxhall Astra report Full Vauxhall Viaro 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.