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Mazda 3 vs Mazda Cx-5 sport nav d: 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 Cx-5 sport nav d
93%
MOT pass rate · 417 vehicles
More reliable
Verdict: On MOT pass rate, the Mazda Cx-5 sport nav d is the more reliable of the two — 93% pass first time versus 78%. It's one signal among several; check the full breakdown below.

Head to head

Measure Mazda 3 Mazda Cx-5 sport nav d
MOT pass rate 78% 93% ✓
MOT failure rate 22% 7% ✓
Faults & advisories per test 2.0 0.0 ✓
Dangerous-fault share 3% 0% ✓
Average mileage 90,915 mi 84,993 mi
Sample size (vehicles) 164,058 417

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 Cx-5 sport nav d

  1. Front Tyre worn close to legal limit/worn on edge both sides - 2mm (5.2.3 (e))
  2. Oil leak, but not excessive (8.4.1 (a) (i))
  3. Nearside Rear Coil spring fractured or broken (5.3.1 (b) (i))
  4. Nearside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii))
  5. Nearside Front Anti-roll bar linkage ball joint has slight play (5.3.4 (a) (i))
  6. Offside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii))

Reliability FAQ

On MOT pass rate, the Mazda Cx-5 sport nav d is the more reliable of the two — 93% pass first time versus 78%. It's one signal among several; check the full breakdown below.

Full Mazda 3 report Full Mazda Cx-5 sport nav d 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.