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Bmw 3 series vs Bmw G 450: 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 G 450
83%
MOT pass rate · 13 vehicles
Verdict: On MOT pass rate the Bmw 3 series (75%) and Bmw G 450 (83%) 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 G 450
MOT pass rate 75% 83% ✓
MOT failure rate 25% 17% ✓
Faults & advisories per test 2.0 0.5 ✓
Dangerous-fault share 2% 0% ✓
Average mileage 128,558 mi 2,021 mi
Sample size (vehicles) 996,044 13

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 G 450

  1. Exhaust noisy (8.1.1 (a))
  2. Rear reflector missing (4.8.2 (a) (ii))
  3. aggressive tyres fitted
  4. NO LIGHTS DAYTIME USE ONLY
  5. Headlamp aim too high (4.1.2 (a))
  6. Drive chain slightly tight (6.1.7 (k) (i))

Reliability FAQ

On MOT pass rate the Bmw 3 series (75%) and Bmw G 450 (83%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Full Bmw 3 series report Full Bmw G 450 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.