Bmw 118 vs Bmw M4 competition m xdrive auto: 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 m xdrive auto
93%
MOT pass rate · 3,798 vehicles
More reliable
Verdict: On MOT pass rate, the Bmw M4 competition m xdrive auto is the more reliable of the two — 93% pass first time versus 81%. It's one signal among several; check the full breakdown below.
Head to head
| Measure | Bmw 118 | Bmw M4 competition m xdrive auto |
|---|---|---|
| MOT pass rate | 81% | 93% ✓ |
| MOT failure rate | 19% | 7% ✓ |
| Faults & advisories per test | 1.5 | 0.5 ✓ |
| Dangerous-fault share | 4% ✓ | 8% |
| Average mileage | 85,676 mi | 22,636 mi |
| Sample size (vehicles) | 195,122 | 3,798 |
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 m xdrive auto
- Nearside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e))
- Offside Rear 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 Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
- Offside Front Inner Tyre worn close to legal limit/worn on edge (5.2.3 (e))
- Nearside Front Inner Tyre worn close to legal limit/worn on edge (5.2.3 (e))
Reliability FAQ
On MOT pass rate, the Bmw M4 competition m xdrive auto is the more reliable of the two — 93% pass first time versus 81%. It's one signal among several; check the full breakdown below.
Full Bmw 118 report Full Bmw M4 competition m xdrive auto 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.