Volvo Unknown vs Volvo V40 se lux nav d4 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
Volvo V40 se lux nav d4 auto
94%
MOT pass rate · 7 vehicles
Verdict: On MOT pass rate the Volvo Unknown (86%) and Volvo V40 se lux nav d4 auto (94%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Head to head
| Measure | Volvo Unknown | Volvo V40 se lux nav d4 auto |
|---|---|---|
| MOT pass rate | 86% | 94% ✓ |
| MOT failure rate | 14% | 6% ✓ |
| Faults & advisories per test | 0.7 | 0.0 ✓ |
| Dangerous-fault share | 4% | — ✓ |
| Average mileage | 431,427 mi | 60,831 mi |
| Sample size (vehicles) | 319,034 | 7 |
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 V40 se lux nav d4 auto
No fault breakdown available.
Reliability FAQ
On MOT pass rate the Volvo Unknown (86%) and Volvo V40 se lux nav d4 auto (94%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Full Volvo Unknown report Full Volvo V40 se lux nav d4 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.