Mercedes-Benz GLK 300 4MATIC 2012 Owner's Manual page 38

Multifunction steering wheel
4-button multifunction steering wheel
Function
:
Multifunction display
;
Audio display; see the sep-
arate operating instruc-
tions
= W
Increases the volume
?
X
Decreases the volume
A
C
Scrolls through lists
Resets values
Hides display messages
Multifunction steering wheel
Page Function
B V
226
Press briefly:
Selects a menu
Press and hold:
Selects the standard dis-
play
35
Page