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Fiat 125p vs Fiat 500: reliability comparison

MOT pass rates, common faults and mileage compared from real UK MOT data.

Fiat 125p
59%
MOT pass rate · 2 vehicles
Fiat 500
77%
MOT pass rate · 333,596 vehicles
Verdict: On MOT pass rate the Fiat 125p (59%) and Fiat 500 (77%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Head to head

Measure Fiat 125p Fiat 500
MOT pass rate 59% 77% ✓
MOT failure rate 41% 23% ✓
Faults & advisories per test 2.4 2.0 ✓
Dangerous-fault share 0% ✓ 3%
Average mileage 56,786 mi 62,906 mi
Sample size (vehicles) 2 333,596

Most common faults

Fiat 125p

  1. Offside Front wheel bearing has slight play (2.5.A.3c)
  2. Service brake: efficiency below requirements (3.7.B.7)
  3. Parking brake: efficiency below requirements (3.7.B.7)
  4. Nearside Headlamp aim beam image obviously incorrect (1.8.A.1b)
  5. Offside Headlamp aim beam image obviously incorrect (1.8.A.1b)
  6. Nearside Front wheel bearing has slight play (2.5.A.3c)

Fiat 500

  1. Offside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  2. Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  3. Offside Rear Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii))
  4. Front Brake disc worn, pitted or scored, but not seriously weakened (1.1.14 (a) (ii))
  5. Nearside Rear Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii))
  6. Nearside Rear Coil spring corroded (5.3.1 (b) (i))

Reliability FAQ

On MOT pass rate the Fiat 125p (59%) and Fiat 500 (77%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Full Fiat 125p report Full Fiat 500 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.