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Ford Fiesta vs Ford Swb: reliability comparison

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

Ford Fiesta
73%
MOT pass rate · 2,835,744 vehicles
Ford Swb
64%
MOT pass rate · 4 vehicles
Verdict: On MOT pass rate the Ford Fiesta (73%) and Ford Swb (64%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Head to head

Measure Ford Fiesta Ford Swb
MOT pass rate 73% ✓ 64%
MOT failure rate 27% ✓ 36%
Faults & advisories per test 2.1 ✓ 2.5
Dangerous-fault share 2% 0% ✓
Average mileage 84,529 mi 56,250 mi
Sample size (vehicles) 2,835,744 4

Most common faults

Ford Fiesta

  1. Nearside Front Tyre worn close to the legal limit (4.1.E.1)
  2. Offside Front Tyre worn close to the legal limit (4.1.E.1)
  3. Offside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  4. Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  5. Nearside Rear Tyre worn close to the legal limit (4.1.E.1)
  6. Offside Rear Brake pipe slightly corroded (3.6.B.2c)

Ford Swb

  1. Offside Front Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings (6.1.B.2)
  2. Windscreen washer provides insufficient washer liquid (8.2.3)
  3. Front Brake pad(s) wearing thin (3.5.1g)
  4. Nearside Front Tyre worn close to the legal limit (4.1.E.1)
  5. Nearside Front brake disc slightly pitted (3.5.1h)
  6. Nearside Front brake disc worn, pitted or scored, but not seriously weakened (3.5.1i)

Reliability FAQ

On MOT pass rate the Ford Fiesta (73%) and Ford Swb (64%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Full Ford Fiesta report Full Ford Swb 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.