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:
Sliding sunroof
Important safety notes
WARNING
When opening or closing the sliding sunroof,
make sure that there is no danger of anyone
being harmed by the opening/closing
procedure.
The sliding sun ...
Checking the brake fluid level
WARNING
Brake fluid is highly toxic - keep containers sealed and out of the reach of
children. If accidental consumption of fluid is suspected, seek medical attention
immediately.
If the fl ...
Intelligent Key battery replacement
CAUTION
Be careful not to allow children to swallow
the battery and removed parts.
Replace the battery as follows:
1. Release the lock knob at the back of the
Intelligent Key and remove t ...






