Bmw 3 series vs Bmw F 800 st: 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 F 800 st
93%
MOT pass rate · 177 vehicles
Verdict: On MOT pass rate the Bmw 3 series (75%) and Bmw F 800 st (93%) 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 F 800 st |
|---|---|---|
| MOT pass rate | 75% | 93% ✓ |
| MOT failure rate | 25% | 7% ✓ |
| Faults & advisories per test | 2.0 | 0.0 ✓ |
| Dangerous-fault share | 2% ✓ | 50% |
| Average mileage | 128,558 mi | 21,445 mi |
| Sample size (vehicles) | 996,044 | 177 |
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 F 800 st
- Nearside Handlebar deformed but serviceable slightly misaligned (2.2.1 (c) (i))
- Rear Stop lamp remains on when the brakes are released (4.3.2 (a) (iii))
- Rear Tyre tread depth is below minimum requirements of 1.0mm (5.2.3 (e))
Reliability FAQ
On MOT pass rate the Bmw 3 series (75%) and Bmw F 800 st (93%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Full Bmw 3 series report Full Bmw F 800 st 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.