Mercedes-Benz Audio 20 Operating Instructions Manual page 47

Adjusting the volume
During a navigation announcement:
Turn the q control knob.
X
or
Press the W or X button on the mul-
X
tifunction steering wheel.
You can set the volume for navigation
i
announcements to be different from the
volume of the respective media source.
GARMIN ® MAP PILOT navigation module
45
Z