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:
The Inside
Mercedes has been reshaping its lineup for the past few years, and the
interiors of models like the C-Class and new E-Class have taken on a more
angular appearance. That's true in the new GLK350, ...
SmartKey
Display messages
Possible causes/consequences and
Solutions
You have put the wrong SmartKey in the ignition lock.
Use the correct SmartKey.
The SmartKey ...
External authorization
If COMAND does not detect your mobile
phone, this may be due to particular security
settings on your mobile phone. In this case,
you can test if your mobile phone can find
COMAND. The Bluetoot ...
