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:
Vehicle operation outside the USA
and Canada
If you plan to operate your vehicle in foreign
countries, please be aware that:
- service facilities or replacement parts may
not be readily available.
- unleaded fuel for vehicles w ...
Activating/deactivating Blind SpotAssist
Further information about Blind Spot Assist.
► Press
on the steering wheel
to select the Additional functions menu.
► Press the
button to select the
Blind Spot Assist function.
...
Display design
Your COMAND display features optimized
designs for operation during daytime and
night-time hours. You can customize the
design to suit your personal preferences by
manually selecting day or ni ...