See also:

Displaying navigation instructions
In the Navi menu, the multifunction display shows navigation instructions. For more information, see the separate operating instructions. Switch on COMAND (see the separate operating instruction ...

DEF
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 ...

Servicing the brakes
If the red brake warning lamp lights up in the instrument cluster and you hear a warning tone while the engine is running, the brake fluid level may be too low. Observe additional warning messa ...