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Fiat 500 vs Fiat Stilo: 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 Stilo
66%
MOT pass rate · 43,693 vehicles
Verdict: On MOT pass rate, the Fiat 500 is the more reliable of the two — 77% pass first time versus 66%. It's one signal among several; check the full breakdown below.

Head to head

Measure Fiat 500 Fiat Stilo
MOT pass rate 77% 66%
MOT failure rate 23% 34%
Faults & advisories per test 2.0 2.2
Dangerous-fault share 3% 0%
Average mileage 62,906 mi 98,973 mi
Sample size (vehicles) 333,596 43,693

Most common faults

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))

Fiat Stilo

  1. Offside Front Tyre worn close to the legal limit (4.1.E.1)
  2. Nearside Front Tyre worn close to the legal limit (4.1.E.1)
  3. Nearside Rear Tyre worn close to the legal limit (4.1.E.1)
  4. Rear Exhaust has part of the system slightly deteriorated (7.1.1a)
  5. Offside Rear Tyre worn close to the legal limit (4.1.E.1)
  6. Offside Front Tyre tread depth below requirements of 1.6mm (4.1.E.1)

Reliability FAQ

On MOT pass rate, the Fiat 500 is the more reliable of the two — 77% pass first time versus 66%. It's one signal among several; check the full breakdown below.

Full Fiat 500 report Full Fiat Stilo 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.