One problem related to software has been reported for the 2006 BMW Z4. The most recently reported issues are listed below.
The battery on the vehicle was dead and replaced. After the battery was replaced, the vehicle is in "transportation mode". Under this mode, the ac, fan and rear defroster do not work. The vehicle need to be returned to the dealer to reinitialize the software to remove the transportation mode.
| Electrical System problems | |
| Wiring problems | |
| Software problems |