See also:

Cleaning the steering wheel and gear orselector lever
► Thoroughly wipe with a damp cloth or use leather care agents that have been recommended and approved by Mercedes- Benz. ...

Purity
Assuring the purity of DEF is particularly important with respect to avoiding malfunctions in the exhaust gas aftertreatment system. If DEF is pumped out of the DEF tank, e.g. during repair wor ...

Calling up the compass
To obtain a correct display in rear-view mirror 1, the compass must be calibrated and the magnetic field zone must be set. ...