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Mazda 6 vs Mazda Se v6 b3000: reliability comparison

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

Mazda 6
75%
MOT pass rate · 159,403 vehicles
Mazda Se v6 b3000
60%
MOT pass rate · 1 vehicles
Verdict: On MOT pass rate the Mazda 6 (75%) and Mazda Se v6 b3000 (60%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Head to head

Measure Mazda 6 Mazda Se v6 b3000
MOT pass rate 75% ✓ 60%
MOT failure rate 25% ✓ 40%
Faults & advisories per test 1.9 ✓ 3.0
Dangerous-fault share 2% 0% ✓
Average mileage 113,866 mi 113,264 mi
Sample size (vehicles) 159,403 1

Most common faults

Mazda 6

  1. Nearside Front Tyre worn close to the legal limit (4.1.E.1)
  2. Offside Front Tyre worn close to the legal limit (4.1.E.1)
  3. Nearside Rear Tyre worn close to the legal limit (4.1.E.1)
  4. Rear Brake pad(s) wearing thin (3.5.1g)
  5. Offside Rear Tyre worn close to the legal limit (4.1.E.1)
  6. Under-trays fitted obscuring some underside components

Mazda Se v6 b3000

  1. slight play in n/s and o/s bottom ball joints
  2. Nearside Rear Tyre worn close to the legal limit (4.1.E.1)
  3. Offside Rear Tyre worn close to the legal limit (4.1.E.1)
  4. Nearside Front Tyre tread depth below requirements of 1.6mm (4.1.E.1)
  5. Nearside Rear Tyre tread depth below requirements of 1.6mm (4.1.E.1)
  6. Offside Front Tyre tread depth below requirements of 1.6mm (4.1.E.1)

Reliability FAQ

On MOT pass rate the Mazda 6 (75%) and Mazda Se v6 b3000 (60%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Full Mazda 6 report Full Mazda Se v6 b3000 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.