See also:

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 ...

General notes
If you use the mechanical key to unlock and open the driver's door or the trunk lid, the anti-theft alarm system will be triggered. There are several ways to turn off the alarm: To turn the a ...

Setting the exterior mirrors
This function is only available in vehicles for Canada. If the battery has been disconnected or completely discharged, the exterior mirrors must be reset. The exterior mirrors will otherwise ...