Vauxhall Astra vs Vauxhall Monterey 3.5 v6: 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 Monterey 3.5 v6
—
MOT pass rate · 2 vehicles
Verdict: On MOT pass rate the Vauxhall Astra (72%) and Vauxhall Monterey 3.5 v6 (0%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Head to head
| Measure | Vauxhall Astra | Vauxhall Monterey 3.5 v6 |
|---|---|---|
| MOT pass rate | 72% ✓ | 0% |
| MOT failure rate | 28% | 0% ✓ |
| Faults & advisories per test | 2.1 | 0.0 ✓ |
| Dangerous-fault share | 2% | — ✓ |
| Average mileage | 111,290 mi | — |
| Sample size (vehicles) | 2,126,137 | 2 |
Most common faults
Vauxhall Astra
- Nearside Front Tyre worn close to the legal limit (4.1.E.1)
- Offside Front Tyre worn close to the legal limit (4.1.E.1)
- Oil leak, but not excessive (8.4.1 (a) (i))
- Nearside Rear Tyre worn close to the legal limit (4.1.E.1)
- Offside Rear Tyre worn close to the legal limit (4.1.E.1)
- Oil leak
Vauxhall Monterey 3.5 v6
No fault breakdown available.
Reliability FAQ
On MOT pass rate the Vauxhall Astra (72%) and Vauxhall Monterey 3.5 v6 (0%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Full Vauxhall Astra report Full Vauxhall Monterey 3.5 v6 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.