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 work, it must not be returned to the tank. The purity of the fluid can no longer be guaranteed.
Impurities in DEF (e.g. due to other
service products, cleaning agents or dust)
lead to:
- increased emission values
- damage to the catalytic converter
- engine damage
- malfunctions in the BlueTEC exhaust gas aftertreatment system
See also:
Opening/closing the help window
In addition to the audible instructions, the
help window will show you other information
during voice control operation and the
individualization process.
Select Vehicle in the main function b ...
Removing the mechanical key
•► Push release catch 1 in the direction of
the arrow and at the same time, remove
mechanical key 2 from the SmartKey. ...
Overview of interior lighting
Switches the rear interior
lighting on/off
Switches the automatic interior
lighting control on/off
Switches the right-hand front
reading lamp on/off
Switches the front interior ...
