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Fiat 500 vs Fiat Uno s i: 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 Uno s i
60%
MOT pass rate · 10 vehicles
Verdict: On MOT pass rate the Fiat 500 (77%) and Fiat Uno s i (60%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Head to head

Measure Fiat 500 Fiat Uno s i
MOT pass rate 77% 60%
MOT failure rate 23% 40%
Faults & advisories per test 2.0 2.1
Dangerous-fault share 3% 1%
Average mileage 62,906 mi 68,977 mi
Sample size (vehicles) 333,596 10

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 Uno s i

  1. Horn not working (1.6.2a)
  2. Nearside Front position lamp(s) not working (1.1.A.3b)
  3. Offside rear parking brake recording little or no effort (3.7.B.6a)
  4. Brake pipe slightly corroded (3.6.B.2c)
  5. Offside Front Brake pipe slightly corroded (3.6.B.2c)
  6. Nearside Front Suspension component mounting prescribed area is excessively corroded (2.4.A.3)

Reliability FAQ

On MOT pass rate the Fiat 500 (77%) and Fiat Uno s i (60%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Full Fiat 500 report Full Fiat Uno s i 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.