Volume and sound settings
You will find details on volume and sound settings in the "At a glance" section.
WARNING
External video sources may have different
volumes, which can mean that system
messages such as traffic announcements and
navigation system announcements are much
louder. If necessary, please deactivate the
system messages or adjust their volume
manually.
In some cases, the volume of the AUX
device may be quieter or louder, or the
usual maximum possible volume cannot be
reached. On some devices, it is possible to
adjust the volume separately. In this case,
start at a medium volume and increase it
gradually. This enables you to determine
whether the system is able to play the
music at high volume without distorting it.
See also:
Brake fluid level
If you notice that the brake fluid level in
the brake fluid reservoir has fallen to the
MIN mark or less, check the brake system
immediately for leaks. Also check the
thickness of the brake li ...
Vehicle data, GL 350 BlueTEC
The data stated here refers specifically to a
vehicle with standard equipment. Consult an
authorized Mercedes-Benz Center for the
data for all vehicle variants and trim levels.
...
Steering wheel heating
Switching on/off
The steering-wheel heating heats the leather
areas of the steering wheel.
► Make sure that the SmartKey is in
position
2 in the ignition lock.
► To switch on/off: ...