2001 Audi A4 problems by component
131 owner complaints filed with NHTSA for the 2001 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 → | 35 | 27% | 43,570 mi |
| Engine and Engine Cooling → | 31 | 24% | 63,521 mi |
| Service Brakes, Hydraulic → | 28 | 21% | 65,000 mi |
| Air Bags → | 11 | 8% | 80,000 mi |
| Power Train | 5 | 4% | — |
| Exterior Lighting | 3 | 2% | — |
| Steering | 3 | 2% | — |
| Suspension | 3 | 2% | — |
| Visibility | 3 | 2% | — |
| Engine | 2 | 2% | — |
| Equipment | 2 | 2% | — |
| Fuel System, Other | 2 | 2% | — |
| Seats | 2 | 2% | — |
| Service Brakes, Air | 2 | 2% | — |
| Service Brakes, Electric | 2 | 2% | — |
| Tires | 2 | 2% | — |
| Fuel System, Gasoline | 1 | 1% | — |
| Latches/locks/linkages | 1 | 1% | — |
| Service Brakes | 1 | 1% | — |
| Structure | 1 | 1% | — |
| Vehicle Speed Control | 1 | 1% | — |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.