Volvo Unknown vs Volvo Xc90 d se awd auto: reliability comparison
MOT pass rates, common faults and mileage compared from real UK MOT data.
Volvo Unknown
86%
MOT pass rate · 319,034 vehicles
More reliable
Volvo Xc90 d se awd auto
59%
MOT pass rate · 80 vehicles
Verdict: On MOT pass rate, the Volvo Unknown is the more reliable of the two — 86% pass first time versus 59%. It's one signal among several; check the full breakdown below.
Head to head
| Measure | Volvo Unknown | Volvo Xc90 d se awd auto |
|---|---|---|
| MOT pass rate | 86% ✓ | 59% |
| MOT failure rate | 14% ✓ | 41% |
| Faults & advisories per test | 0.7 | 0.0 ✓ |
| Dangerous-fault share | 4% | — ✓ |
| Average mileage | 431,427 mi | 178,288 mi |
| Sample size (vehicles) | 319,034 | 80 |
Most common faults
Volvo Unknown
- Oil leak, but not excessive (8.4.1 (a) (i))
- Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
- Offside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
- Parking brake efficiency below requirements (1.4.2 (a) (i))
- Service brake efficiency below requirements (1.2.2 (a) (i))
- Rear Brake pad(s) wearing thin (1.1.13 (a) (ii))
Volvo Xc90 d se awd auto
No fault breakdown available.
Reliability FAQ
On MOT pass rate, the Volvo Unknown is the more reliable of the two — 86% pass first time versus 59%. It's one signal among several; check the full breakdown below.
Full Volvo Unknown report Full Volvo Xc90 d se awd auto 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.