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:
Switching the ZONE function on/off
- To switch on: press the
button.
The indicator lamp in the button
lights
up.
Dual-zone automatic climate control: the
temperature setting for the driver's side is
not adopted for the fr ...
Please bear the following in mind
Resetting service interval display
If the qualified specialist workshop, e.g. a
Mercedes-Benz Center, carried out the
maintenance work, the service interval
display will be reset.
Further info ...
Storing a destination permanently in
the destination memory
Proceed as described in the "From the list
of previous destinations" section. ...