2020 BMW M340I problems by component
50 owner complaints filed with NHTSA for the 2020 BMW M340I, grouped by the component owners reported. Each component links to a detailed breakdown with mileage, severity and owner reports.
| Component | Complaints | Share | Median mileage |
|---|---|---|---|
| Engine → | 35 | 70% | — |
| Electrical System | 6 | 12% | — |
| Engine and Engine Cooling | 4 | 8% | — |
| Fuel/propulsion System | 3 | 6% | — |
| Power Train | 2 | 4% | — |
| Tires | 2 | 4% | — |
| Service Brakes | 1 | 2% | — |
| Wheels | 1 | 2% | — |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.