Volvo S40 vs Volvo S80 se nav d4 auto: reliability comparison
MOT pass rates, common faults and mileage compared from real UK MOT data.
Volvo S40
70%
MOT pass rate · 104,637 vehicles
Volvo S80 se nav d4 auto
100%
MOT pass rate · 5 vehicles
Verdict: On MOT pass rate the Volvo S40 (70%) and Volvo S80 se nav d4 auto (100%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Head to head
| Measure | Volvo S40 | Volvo S80 se nav d4 auto |
|---|---|---|
| MOT pass rate | 70% | 100% ✓ |
| MOT failure rate | 30% | 0% ✓ |
| Faults & advisories per test | 2.1 | 0.0 ✓ |
| Dangerous-fault share | 1% | — ✓ |
| Average mileage | 123,409 mi | 104,498 mi |
| Sample size (vehicles) | 104,637 | 5 |
Most common faults
Volvo S40
- 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)
- 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)
- Front Brake pad(s) wearing thin (3.5.1g)
- Parking brake: efficiency below requirements (3.7.B.7)
Volvo S80 se nav d4 auto
No fault breakdown available.
Reliability FAQ
On MOT pass rate the Volvo S40 (70%) and Volvo S80 se nav d4 auto (100%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Full Volvo S40 report Full Volvo S80 se 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.