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:
Problems with the engine
Problem
Possible causes/consequences and
Solutions
The engine does not start. The starter motor can be
heard.
• There is a malfunction in the engine electronics.
• ...
Immobilizer
The immobilizer prevents your vehicle from
being started without the correct SmartKey.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. The
engine can be starte ...
Standard display
► Press the
button on the
steering wheel to select the standard
display.
Standard display
1 Trip odometer
2 Odometer
You can select the following functions in the
Standard display men ...
