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Mazda 626 executive auto vs Mazda Mx-5: reliability comparison

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

Mazda 626 executive auto
63%
MOT pass rate · 126 vehicles
Mazda Mx-5
77%
MOT pass rate · 162,634 vehicles
Verdict: On MOT pass rate the Mazda 626 executive auto (63%) and Mazda Mx-5 (77%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Head to head

Measure Mazda 626 executive auto Mazda Mx-5
MOT pass rate 63% 77% ✓
MOT failure rate 37% 23% ✓
Faults & advisories per test 1.9 1.8 ✓
Dangerous-fault share 0% ✓ 1%
Average mileage 123,693 mi 90,085 mi
Sample size (vehicles) 126 162,634

Most common faults

Mazda 626 executive auto

  1. Nearside Front Tyre tread depth below requirements of 1.6mm (4.1.E.1)
  2. Offside Front constant velocity joint gaiter split (2.5.C.1a)
  3. Offside Front Tyre tread depth below requirements of 1.6mm (4.1.E.1)
  4. Nearside Front constant velocity joint gaiter split (2.5.C.1a)
  5. Rear Exhaust has a major leak of exhaust gases (7.1.2)
  6. Nearside Front Front constant velocity joint gaiter split (2.5.C.1a)

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))

Reliability FAQ

On MOT pass rate the Mazda 626 executive auto (63%) and Mazda Mx-5 (77%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Full Mazda 626 executive auto report Full Mazda Mx-5 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.