See also:

Operation
Press to operate the air quality sensor (normal setting). or: Select one of the following three functions by pressing 1, 2 or 3 times. 1. The AUT LED lights. The air quality sensor is now acti ...

Volume control
Turn the knob (2) clockwise or counterclockwise to raise or lower the volume. The volume control is electronic and has no end position. Volume can also be raised (+) or lowered (–) using the ste ...

Putting ACC in standby mode
Before ACC can be used to regulate speed and/or the distance to a vehicle ahead, it must first be put in standby mode. To do so: Press . The symbol appears in the display and parentheses (---) ...