One problem related to turn signal has been reported for the 2006 BMW Z4. The most recently reported issues are listed below.
The insulated wiring inside the headlight housing has hardened and the insulation had cracked and fallen off. This allows the wires to short and causes unexpected failure of the headlights, parking lights, turn signals and other items inside the headlight housing. The lights failed unexpectedly and intermittently.
| Headlights problems | |
| Turn Signal problems |