2004 BMW Z4 problems by component
411 owner complaints filed with NHTSA for the 2004 BMW Z4, grouped by the component owners reported. Each component links to a detailed breakdown with mileage, severity and owner reports.
| Component | Complaints | Share | Median mileage |
|---|---|---|---|
| Steering → | 378 | 92% | 46,032 mi |
| Air Bags → | 18 | 4% | 57,425 mi |
| Electrical System → | 14 | 3% | 56,000 mi |
| Exterior Lighting | 6 | 1% | — |
| Electronic Stability Control (esc) | 3 | 1% | — |
| Power Train | 3 | 1% | — |
| Structure | 3 | 1% | — |
| Visibility/wiper | 3 | 1% | — |
| Service Brakes | 2 | 0% | — |
| Equipment Adaptive/mobility | 1 | 0% | — |
| Seats | 1 | 0% | — |
| Service Brakes, Hydraulic | 1 | 0% | — |
| Suspension | 1 | 0% | — |
| Vehicle Speed Control | 1 | 0% | — |
| Visibility | 1 | 0% | — |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.