Fiat 500 vs Fiat Marea 100 sx weeken: reliability comparison
MOT pass rates, common faults and mileage compared from real UK MOT data.
Fiat 500
77%
MOT pass rate · 333,596 vehicles
More reliable
Fiat Marea 100 sx weeken
63%
MOT pass rate · 46 vehicles
Verdict: On MOT pass rate, the Fiat 500 is the more reliable of the two — 77% pass first time versus 63%. It's one signal among several; check the full breakdown below.
Head to head
| Measure | Fiat 500 | Fiat Marea 100 sx weeken |
|---|---|---|
| MOT pass rate | 77% ✓ | 63% |
| MOT failure rate | 23% ✓ | 37% |
| Faults & advisories per test | 2.0 | 1.7 ✓ |
| Dangerous-fault share | 3% | 0% ✓ |
| Average mileage | 62,906 mi | 106,202 mi |
| Sample size (vehicles) | 333,596 | 46 |
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 Marea 100 sx weeken
- Child seat fitted not allowing full inspection of adult belt
- Offside Rear Tyre worn close to the legal limit (4.1.E.1)
- Parking brake: efficiency below requirements (3.7.B.7)
- Offside Rear Brake pipe excessively corroded (3.6.B.2c)
- Oil leak
- Front Brake pad(s) wearing thin (3.5.1g)
Reliability FAQ
On MOT pass rate, the Fiat 500 is the more reliable of the two — 77% pass first time versus 63%. It's one signal among several; check the full breakdown below.
Full Fiat 500 report Full Fiat Marea 100 sx weeken 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.