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:
Important safety notes
For BlueTEC vehicles only.
DEF is a non-flammable, non-toxic, colorless,
odorless and water-soluble fluid.
Rinse surfaces that have come into
contact with DEF immediately with water or
remov ...
The spray nozzles are misaligned
The windshield washer fluid from the spray
nozzles no longer hits the center of the
windshield. The spray nozzles are misaligned.
Have the spray nozzles adjusted
at a
qualified specialist wo ...
Before changing a fuse
Park the vehicle and apply the parking
brake.
Switch off all electrical consumers.
Remove the SmartKey from the ignition
lock.
The fuses are located in various fuse boxes:
...
