2018 Audi A4 problems by component
44 owner complaints filed with NHTSA for the 2018 Audi A4, grouped by the component owners reported. Each component links to a detailed breakdown with mileage, severity and owner reports.
| Component | Complaints | Share | Median mileage |
|---|---|---|---|
| Electrical System → | 17 | 39% | — |
| Fuel/propulsion System | 6 | 14% | — |
| Structure | 6 | 14% | — |
| Engine | 5 | 11% | — |
| Power Train | 5 | 11% | — |
| Air Bags | 4 | 9% | — |
| Forward Collision Avoidance | 4 | 9% | — |
| Service Brakes | 4 | 9% | — |
| Back Over Prevention | 2 | 5% | — |
| Suspension | 2 | 5% | — |
| Electronic Stability Control (esc) | 1 | 2% | — |
| Engine and Engine Cooling | 1 | 2% | — |
| Seats | 1 | 2% | — |
| Steering | 1 | 2% | — |
| Visibility/wiper | 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%.