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:
2008 Mercedes-Benz M-Class Review
Until a 2008 M-Class was assigned to me for this review, I had kind of
forgotten that Mercedes redesigned this luxury SUV two years ago. Sure, I knew
about the update when it was first announced, ...
Checking the vehicle and trailer weight
To check that the weights of the towing vehicle and the trailer comply
with the maximum permissible values, have the vehicle/trailer combination (including
the driver, passengers, and cargo w ...
Convenience
Activating/deactivating the EASYENTRY/ EXIT feature
You can use the Easy Entry/Exit: function to activate or deactivate the EASY
ENTRY/ EXIT feature ().
WARNING
You must make sure no one can ...
