Bmw 3 series vs Bmw G450 x: 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 G450 x
75%
MOT pass rate · 2 vehicles
Verdict: On MOT pass rate the Bmw 3 series (75%) and Bmw G450 x (75%) 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 G450 x |
|---|---|---|
| MOT pass rate | 75% | 75% |
| MOT failure rate | 25% | 25% |
| Faults & advisories per test | 2.0 ✓ | 4.0 |
| Dangerous-fault share | 2% ✓ | 12% |
| Average mileage | 128,558 mi | 2,793 mi |
| Sample size (vehicles) | 996,044 | 2 |
Most common faults
Bmw 3 series
- Nearside Rear Tyre worn close to the legal limit (4.1.E.1)
- Offside Rear Tyre worn close to the legal limit (4.1.E.1)
- Nearside Front Tyre worn close to the legal limit (4.1.E.1)
- Offside Front Tyre worn close to the legal limit (4.1.E.1)
- Under-trays fitted obscuring some underside components
- Oil leak, but not excessive (8.4.1 (a) (i))
Bmw G450 x
- Exhaust slightly loose rivets hanging out of front of silencer - only held in place with silencer bracket which is not a tight fit (6.1.2 (a))
- Front Tyre not fitted in accordance with side wall instructions incorrect rotation (5.2.3 (i))
- Headlamp aim too low (4.1.2 (a))
- Horn not working no horn fitted (7.7 (a))
- Rear Brake performance not tested unable to test due to missing knobbles of tyre (1.2.1 (g))
- Rear Position lamp missing no light fitted (4.2.1 (a))
Reliability FAQ
On MOT pass rate the Bmw 3 series (75%) and Bmw G450 x (75%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Full Bmw 3 series report Full Bmw G450 x 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.