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:
Setting the center vents in the rear compartment
ear-compartment air vent thumbwheel
ear-compartment air vent, right
ear-compartment air vent, left
To open/close: turn thumbwheel 1 up or down. ...
Important safety notes
For reasons of safety, Mercedes-Benz
recommends that you drive with the lights
switched on even during the daytime. In some
countries, operation of the headlamps varies
due to legal requirements a ...
Bag hooks
The bag hook can bear a maximum
load
of 11 lbs (5 kg). Do not use it to secure a
load.
1 Bag hook ...
