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Mazda 3 vs Mazda Rx: 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 Rx
76%
MOT pass rate · 11 vehicles
Verdict: On MOT pass rate the Mazda 3 (78%) and Mazda Rx (76%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Head to head

Measure Mazda 3 Mazda Rx
MOT pass rate 78% ✓ 76%
MOT failure rate 22% ✓ 24%
Faults & advisories per test 2.0 1.9 ✓
Dangerous-fault share 3% 0% ✓
Average mileage 90,915 mi 88,338 mi
Sample size (vehicles) 164,058 11

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 Rx

  1. Oil leak
  2. Nearside Rear Suspension arm has slight play in a pin/bush (2.4.G.2)
  3. Front registration plate missing (6.3.1a)
  4. front plastic trims touching front tyres
  5. slight movement in front suspension when on rolling road
  6. slight play / movement in rear suspension

Reliability FAQ

On MOT pass rate the Mazda 3 (78%) and Mazda Rx (76%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Full Mazda 3 report Full Mazda Rx 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.