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:
Off-road menu
Depending on your vehicle's optional
equipment, you can set the following current
settings to be shown in the Off-road menu:
• Level control
• compass
• differential locks
Large buildings, powe ...
Notes on care
Regular care of your vehicle is a condition for
retaining the quality in the long term.
Use care products and cleaning agents
recommended and approved by Mercedes-
Benz.
WARNING
Many cleanin ...
Removing the mechanical key
- Push release catch 1 in the direction of
the arrow and at the same time, remove
mechanical key 2 from the SmartKey. ...