See also:

Overview: changing bulbs/bulb types
You can change the following bulbs. The bulb type can be found in the legend. Halogen headlamps Turn signal lamp/side marker lamp: WY 5 W Turn signal lamp: PY 21 W High-beam headlamp: H7 55 ...

Increasing the volume
In some cases, the volume of the AUX device may be quieter or louder, or the usual maximum possible volume cannot be reached. On some devices, it is possible to adjust the volume separately. I ...

Problems with the SmartKey
Problem Possible causes/consequences and  Solutions You cannot lock or unlock the vehicle using the SmartKey. The SmartKey battery is discharged or nearly discharged ...