See also:

Connecting headphones
You can connect headphones with a jack plug or operate them using the infrared interface. To enable optimal use of the infrared interface, use infrared headphones that comply with the IEC 61603 ...

Loss of the remote controls
Lost remote controls can be blocked by your service center. ...

The concept
The automatic engine start-stop function helps save fuel. The system switches off the engine during a stop, e. g., in a traffic congestion or at traffic lights. The ignition remains switched on. ...