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Bmw 3 series vs Bmw X6m: reliability comparison

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

Bmw 3 series
75%
MOT pass rate · 996,044 vehicles
Bmw X6m
100%
MOT pass rate · 1 vehicles
Verdict: On MOT pass rate the Bmw 3 series (75%) and Bmw X6m (100%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Head to head

Measure Bmw 3 series Bmw X6m
MOT pass rate 75% 100%
MOT failure rate 25% 0%
Faults & advisories per test 2.0 0.7
Dangerous-fault share 2% 0%
Average mileage 128,558 mi 57,961 mi
Sample size (vehicles) 996,044 1

Most common faults

Bmw 3 series

  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. Nearside Front Tyre worn close to the legal limit (4.1.E.1)
  4. Offside Front Tyre worn close to the legal limit (4.1.E.1)
  5. Under-trays fitted obscuring some underside components
  6. Oil leak, but not excessive (8.4.1 (a) (i))

Bmw X6m

  1. Offside Front tyre has slight wear inner and outer edge
  2. Offside Rear tyre has slight wear inner edge
  3. Windscreen wiper blade defective (3.4 (b) (i))
  4. Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  5. Offside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))

Reliability FAQ

On MOT pass rate the Bmw 3 series (75%) and Bmw X6m (100%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Full Bmw 3 series report Full Bmw X6m 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.