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:
Importing contacts automatically
If a mobile phone is connected to COMAND
via the Bluetooth® interface, the contacts
(phone book entries) of the mobile phone are
automatically imported into COMAND's
phone book.
Depending on ...
Additives in gasoline
One of the main problems of poor fuel quality is the forming
of deposits that are caused during the gasoline combustion process. Mercedes-Benz
recommends that you use fuel brands that have the add ...
Charging the battery
WARNING
Never charge a battery still installed in the vehicle unless
a battery charger unit approved by Mercedes-Benz is being used. Gases may escape
during charging and cause explosions tha ...