See also:

Windows fogged up on the outside
- Activate the windshield wipers. - Press the button repeatedly until the or symbol appears in the display. You should only select this setting until the windshield is clear again. ...

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 ...

Problems with your vehicle
If you should experience a problem with your vehicle, particularly one that you believe may affect its safe operation, we urge you to contact an authorized Mercedes-Benz Center immediately to h ...