2021 Mercedes-Benz GLC 300 problems by component
61 owner complaints filed with NHTSA for the 2021 Mercedes-Benz GLC 300, 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 → | 29 | 48% | — |
| Exterior Lighting → | 10 | 16% | — |
| Fuel/propulsion System | 9 | 15% | — |
| Electrical System | 7 | 11% | — |
| Back Over Prevention | 3 | 5% | — |
| Forward Collision Avoidance | 3 | 5% | — |
| Power Train | 3 | 5% | — |
| Structure | 3 | 5% | — |
| Visibility/wiper | 3 | 5% | — |
| Fuel System, Gasoline | 2 | 3% | — |
| Vehicle Speed Control | 2 | 3% | — |
| Air Bags | 1 | 2% | — |
| Lane Departure | 1 | 2% | — |
| Visibility | 1 | 2% | — |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.