Vauxhall Astra vs Vauxhall Insignia sri 160 cdti: 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 Insignia sri 160 cdti
80%
MOT pass rate · 463 vehicles
More reliable
Verdict: On MOT pass rate, the Vauxhall Insignia sri 160 cdti 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 Astra | Vauxhall Insignia sri 160 cdti |
|---|---|---|
| MOT pass rate | 72% | 80% ✓ |
| MOT failure rate | 28% | 20% ✓ |
| Faults & advisories per test | 2.1 | 0.0 ✓ |
| Dangerous-fault share | 2% | — ✓ |
| Average mileage | 111,290 mi | 144,222 mi |
| Sample size (vehicles) | 2,126,137 | 463 |
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 Insignia sri 160 cdti
No fault breakdown available.
Reliability FAQ
On MOT pass rate, the Vauxhall Insignia sri 160 cdti 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 Astra report Full Vauxhall Insignia sri 160 cdti 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.