Fiat 500 vs Fiat Ducato dethleffs motorhome: reliability comparison
MOT pass rates, common faults and mileage compared from real UK MOT data.
Fiat 500
77%
MOT pass rate · 333,596 vehicles
Fiat Ducato dethleffs motorhome
81%
MOT pass rate · 2 vehicles
Verdict: On MOT pass rate the Fiat 500 (77%) and Fiat Ducato dethleffs motorhome (81%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Head to head
| Measure | Fiat 500 | Fiat Ducato dethleffs motorhome |
|---|---|---|
| MOT pass rate | 77% | 81% ✓ |
| MOT failure rate | 23% | 19% ✓ |
| Faults & advisories per test | 2.0 | 0.5 ✓ |
| Dangerous-fault share | 3% | 0% ✓ |
| Average mileage | 62,906 mi | 10,663 mi |
| Sample size (vehicles) | 333,596 | 2 |
Most common faults
Fiat 500
- Offside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
- Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
- Offside Rear Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii))
- Front Brake disc worn, pitted or scored, but not seriously weakened (1.1.14 (a) (ii))
- Nearside Rear Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii))
- Nearside Rear Coil spring corroded (5.3.1 (b) (i))
Fiat Ducato dethleffs motorhome
- PARK BRAKE 17%
- Nearside Front Headlamp has a product on the lens so that the light output is severely reduced (4.1.4 (b))
- Nearside Front Windscreen wiper does not clear the windscreen effectively (3.4 (b) (ii))
- Offside Front Headlamp has a product on the lens so that the light output is severely reduced (4.1.4 (b))
- Offside Front Windscreen wiper does not clear the windscreen effectively (3.4 (b) (ii))
- Offside Windscreen wiper does not clear the windscreen effectively (3.4 (b) (ii))
Reliability FAQ
On MOT pass rate the Fiat 500 (77%) and Fiat Ducato dethleffs motorhome (81%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Full Fiat 500 report Full Fiat Ducato dethleffs 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.