Bmw 118 vs Bmw M4 competition: reliability comparison
MOT pass rates, common faults and mileage compared from real UK MOT data.
Bmw 118
81%
MOT pass rate · 195,122 vehicles
Bmw M4 competition
91%
MOT pass rate · 1 vehicles
Verdict: On MOT pass rate the Bmw 118 (81%) and Bmw M4 competition (91%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Head to head
| Measure | Bmw 118 | Bmw M4 competition |
|---|---|---|
| MOT pass rate | 81% | 91% ✓ |
| MOT failure rate | 19% | 9% ✓ |
| Faults & advisories per test | 1.5 | 0.4 ✓ |
| Dangerous-fault share | 4% | 0% ✓ |
| Average mileage | 85,676 mi | 68,233 mi |
| Sample size (vehicles) | 195,122 | 1 |
Most common faults
Bmw 118
- Offside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e))
- Nearside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e))
- Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
- Offside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
- 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)
Bmw M4 competition
- Front Registration plate insecure but not likely to fall off (0.1 (a))
- Rear differential damp
- Windscreen damaged but not adversely affecting driver's view small stonechip (3.2 (a) (i))
- Nearside Side repeater not working (4.4.1 (a) (ii))
Reliability FAQ
On MOT pass rate the Bmw 118 (81%) and Bmw M4 competition (91%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Full Bmw 118 report Full Bmw M4 competition 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.