Vauxhall Astra design cdti vs Vauxhall Zafira: reliability comparison
MOT pass rates, common faults and mileage compared from real UK MOT data.
Vauxhall Astra design cdti
85%
MOT pass rate · 283 vehicles
More reliable
Vauxhall Zafira
72%
MOT pass rate · 574,048 vehicles
Verdict: On MOT pass rate, the Vauxhall Astra design cdti is the more reliable of the two — 85% pass first time versus 72%. It's one signal among several; check the full breakdown below.
Head to head
| Measure | Vauxhall Astra design cdti | Vauxhall Zafira |
|---|---|---|
| MOT pass rate | 85% ✓ | 72% |
| MOT failure rate | 15% ✓ | 28% |
| Faults & advisories per test | 0.0 ✓ | 2.1 |
| Dangerous-fault share | — ✓ | 2% |
| Average mileage | 109,975 mi | 116,941 mi |
| Sample size (vehicles) | 283 | 574,048 |
Most common faults
Vauxhall Astra design cdti
No fault breakdown available.
Vauxhall Zafira
- 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)
- Child seat fitted not allowing full inspection of adult belt
Reliability FAQ
On MOT pass rate, the Vauxhall Astra design cdti is the more reliable of the two — 85% pass first time versus 72%. It's one signal among several; check the full breakdown below.
Full Vauxhall Astra design cdti report Full Vauxhall Zafira 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.