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Mazda Mx-5 vs Mazda Mz5: reliability comparison

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

Mazda Mx-5
77%
MOT pass rate · 162,634 vehicles
Mazda Mz5
84%
MOT pass rate · 2 vehicles
Verdict: On MOT pass rate the Mazda Mx-5 (77%) and Mazda Mz5 (84%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Head to head

Measure Mazda Mx-5 Mazda Mz5
MOT pass rate 77% 84% ✓
MOT failure rate 23% 16% ✓
Faults & advisories per test 1.8 1.5 ✓
Dangerous-fault share 1% 0% ✓
Average mileage 90,085 mi 96,393 mi
Sample size (vehicles) 162,634 2

Most common faults

Mazda Mx-5

  1. Nearside Rear Tyre worn close to the legal limit (4.1.E.1)
  2. Offside Rear Tyre worn close to the legal limit (4.1.E.1)
  3. Front Brake pad(s) wearing thin (3.5.1g)
  4. Rear Brake pad(s) wearing thin (3.5.1g)
  5. Nearside Front Tyre worn close to the legal limit (4.1.E.1)
  6. Oil leak, but not excessive (8.4.1 (a) (i))

Mazda Mz5

  1. Offside Front Brake pipe slightly corroded (3.6.B.2c)
  2. Offside Front wheel bearing has slight play (2.5.A.3c)
  3. Nearside Rear Brake pipe slightly corroded (3.6.B.2c)
  4. Parking brake: parking brake efficiency only just met. It would appear that the braking system requires adjustment or repair. (3.7.B.7)
  5. Exhaust has part of the system slightly deteriorated (7.1.1a)
  6. Front Brake pipe slightly corroded (3.6.B.2c)

Reliability FAQ

On MOT pass rate the Mazda Mx-5 (77%) and Mazda Mz5 (84%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Full Mazda Mx-5 report Full Mazda Mz5 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.