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Mazda 3 vs Mazda Roadstar eunos: reliability comparison

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

Mazda 3
78%
MOT pass rate · 164,058 vehicles
Mazda Roadstar eunos
67%
MOT pass rate · 1 vehicles
Verdict: On MOT pass rate the Mazda 3 (78%) and Mazda Roadstar eunos (67%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Head to head

Measure Mazda 3 Mazda Roadstar eunos
MOT pass rate 78% ✓ 67%
MOT failure rate 22% ✓ 33%
Faults & advisories per test 2.0 ✓ 3.2
Dangerous-fault share 3% 2% ✓
Average mileage 90,915 mi 148,575 mi
Sample size (vehicles) 164,058 1

Most common faults

Mazda 3

  1. Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  2. Offside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  3. Nearside Front Tyre worn close to the legal limit (4.1.E.1)
  4. Rear Sub-frame corroded but not seriously weakened (5.3.3 (b) (i))
  5. Offside Front Tyre worn close to the legal limit (4.1.E.1)
  6. Front Brake pad(s) wearing thin (1.1.13 (a) (ii))

Mazda Roadstar eunos

  1. o/s/f tyre has side wall damage
  2. Suspension joint nearside upper dust cover split/missing
  3. Suspension joint offside upper dust cover split/missing
  4. Rear brake disc worn, pitted or scored, but not seriously weakened (3.5.1i)
  5. O/Side Tyre Wall Cracking
  6. Offside Front Steering rack gaiter split (2.2.D.2d)

Reliability FAQ

On MOT pass rate the Mazda 3 (78%) and Mazda Roadstar eunos (67%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Full Mazda 3 report Full Mazda Roadstar eunos 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.