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:
Driving on flooded roads
Do not drive through flooded
areas.
Check the depth of any water before drivincg
through it. Drive slowly through standing
water. Otherwise, water may enter the
vehicle interior or the engin ...
Activating/deactivating
Turn the SmartKey to position 2 in the ignition lock.
To switch on: press the button.
The indicator lamp in the button
lights up. Airflow and air distribution are set to automatic mode.
...
Vehicle remote opening
If you have unintentionally locked your
vehicle (e.g. the SmartKey is still in the
vehicle) and a replacement SmartKey is not available, the vehicle can be opened
by a
Mercedes-Benz Customer A ...
