Fiat Ducato vs Fiat Hymer b644 motorhome: reliability comparison
MOT pass rates, common faults and mileage compared from real UK MOT data.
Fiat Ducato
75%
MOT pass rate · 145,137 vehicles
Fiat Hymer b644 motorhome
91%
MOT pass rate · 1 vehicles
Verdict: On MOT pass rate the Fiat Ducato (75%) and Fiat Hymer b644 motorhome (91%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Head to head
| Measure | Fiat Ducato | Fiat Hymer b644 motorhome |
|---|---|---|
| MOT pass rate | 75% | 91% ✓ |
| MOT failure rate | 25% | 9% ✓ |
| Faults & advisories per test | 1.9 ✓ | 3.1 |
| Dangerous-fault share | 2% | 0% ✓ |
| Average mileage | 93,121 mi | 123,288 mi |
| Sample size (vehicles) | 145,137 | 1 |
Most common faults
Fiat Ducato
- Oil leak, but not excessive (8.4.1 (a) (i))
- Parking brake: efficiency below requirements (3.7.B.7)
- Oil leak
- 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)
- Parking brake efficiency below requirements (1.4.2 (a) (i))
Fiat Hymer b644 motorhome
- Suspension joint nearside lower dust cover split/missing
- Nearside Front Coil spring corroded (5.3.1 (b) (i))
- Offside Front Coil spring corroded (5.3.1 (b) (i))
- Offside Front Brake pipe corroded, covered in grease or other material (1.1.11 (c))
- front suspension corroded
- Nearside Front Shock absorbers has light misting of oil (5.3.2 (b))
Reliability FAQ
On MOT pass rate the Fiat Ducato (75%) and Fiat Hymer b644 motorhome (91%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Full Fiat Ducato report Full Fiat Hymer b644 motorhome 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.