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:
Calling up a stored setting
If you want to move the seat from the fully reclined position to a stored seat
position, first raise the backrest. The seat could otherwise be damaged.
Press and hold the relevant storage positi ...
Rear fog lamp
•► To switch on the rear fog lamp: turn the
SmartKey in the ignition lock to position 2
or start the engine.
•► Turn the light switch to
or or
.
If the light switch is set to ...
Setting the map to the vehicle position,
intermediate stop or destination
position
Centering the map on the vehicle position
To show the menu: press
the COMAND
controller.
Select Position in the navigation system
menu bar by sliding and turning
the COMAND controller a ...