Fiat 500 vs Fiat Dethleffs trend somo t 6717: 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 Dethleffs trend somo t 6717
94%
MOT pass rate · 3 vehicles
Verdict: On MOT pass rate the Fiat 500 (77%) and Fiat Dethleffs trend somo t 6717 (94%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Head to head
| Measure | Fiat 500 | Fiat Dethleffs trend somo t 6717 |
|---|---|---|
| MOT pass rate | 77% | 94% ✓ |
| MOT failure rate | 23% | 6% ✓ |
| Faults & advisories per test | 2.0 | 0.1 ✓ |
| Dangerous-fault share | 3% | 0% ✓ |
| Average mileage | 62,906 mi | 27,614 mi |
| Sample size (vehicles) | 333,596 | 3 |
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 Dethleffs trend somo t 6717
- Offside Windscreen wiper does not clear the windscreen effectively (3.4 (b) (ii))
- deterioration starting to both rear tyres
Reliability FAQ
On MOT pass rate the Fiat 500 (77%) and Fiat Dethleffs trend somo t 6717 (94%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Full Fiat 500 report Full Fiat Dethleffs trend somo t 6717 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.