See also:

Hiding a service message
  Press the or button on the steering wheel. ...

Important safety notes
WARNING When opening or closing the door windows, make sure that there is no danger of anyone being harmed by the opening/closing procedure. The door windows are equipped with automatic op ...

DEF refill bottle
DEF refill bottles can be obtained at many gas stations or at an authorized Mercedes-Benz Center. Refill bottles without a threaded cap do not provide overfill protection. DEF may leak if over ...