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:
Hiding a service message
– Press the
or button on the
steering wheel. ...
Interior
The M-Class seats five people on front buckets and a three-place split rear
seat that folds to expand cargo space to 81.2 cubic feet. An optional two-place
third-row seat increases passenger capac ...
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 primary
...