Mercedes-Benz GL-Class: Refrigerant of the air-conditioningsystem
The air-conditioning system is filled with R134a refrigerant and a special PAG lubricant.
Never use refrigerant R 12 (CFC) or
mineral lubricants. Otherwise, you could
damage the air-conditioning system.
Engine oil viscosity
Viscosity describes the flow characteristics
of a fluid. If an engine oil has a high viscosity,
this means that it is thick; a low viscosity
means that it is thin.
Select an engine oil with an S ...
Brake fluid
WARNING
The brake fluid constantly absorbs moisture
from the air; this lowers its boiling point.
If the boiling point of the brake fluid is too low,
vapor pockets may form in the brake ...
See also:
System settings
• Button feedback: Soft key confirmation tone on or off.
• Clock adjust: Select 12 and 24 hour clock. Use the arrow soft keys to
alter the time. Select Date to change the date, or to alter ...
Exterior mirrors
1. Left mirror adjustment.
2. Right mirror adjustment.
3. Press both switches together to fold/unfold the mirrors.
Note: If the mirrors are manually folded or knocked into the folded position
a ...
Activating the rear view camera
► Make sure that the SmartKey is in
position
2 in the ignition lock.
► Make sure that the "rear view camera"
function is selected in COMAND (see the
separate operating inst ...
