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:
Important safety notes
Your vehicle may be equipped with a sliding
sunroof or a panorama roof with power tilt/sliding panel. In the following
section, the
term "sliding sunroof" refers to both types of
sli ...
Important safety notes
WARNING
When operating the climate control, the air
that enters the passenger compartment
through the air vents can be very hot or very
cold (depending on the set temperature). This
could ca ...
Important safety notes
You will find an illustration of the instrument
cluster in the "At a glance" section.
WARNING
A driver's attention to the road and traffic
conditions must always be his/her p ...