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 linings. Contact a
qualified specialist workshop, e.g. an
authorized Mercedes-Benz Center
immediately.
Do not add brake fluid. This does not
correct the error.
Only check the brake fluid level when the vehicle is stationary and on a level surface.

The brake fluid level is correct if it is between MIN marking 2 and MAX marking 1 on the brake fluid reservoir.
See also:
Preparing the vehicle
Stop the vehicle as far away as possible from traffic on solid, non-slippery
and level ground.
Switch on the hazard warning lamps.
Firmly depress the parking brake.
Bring the front wheels ...
Calling up the compass
To obtain a correct display in rear-view mirror 1, the compass must be calibrated
and the magnetic field zone must be set. ...
Securing hooks
Only use the mounting hooks to secure items
of luggage up to maximum of 9 lbs (4 kg) in
weight.
There are two securing hooks 1 on each side
of the cargo compartment. ...
