See also:

General information
The sound settings are stored for the remote control currently in use. ...

Fuses
Never attempt to repair a blown fuse and do not replace a defective fuse with a substitute of another color or amperage rating; otherwise, this could lead to a circuit overload, ultimately result ...

Front active seat ventilation
The seat cushion and backrest surfaces are cooled by means of integrated fans. The ventilation rapidly cools the seat, e.g., if the vehicle interior is overheated or for continuous cooling at h ...