See also:

Context help - Owner's Manual to thetemporarily selected function
The relevant information can be opened directly. Opening during operation via iDrive To move directly from the application on the Control Display to the options menu: 1. Press the button or move ...

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. ...

Avoid high engine speeds
Driving at a low engine speed reduces fuel consumption and minimizes wear. ...