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:
Displaying real-time traffic reports
If necessary, switch to navigation mode
and show the menu.
Select Traffic in the navigation system
menu bar by turning
the COMAND
controller and press to confirm.
If you see the No traff ...
Important safety notes
WARNING
When leaving the vehicle, always remove the SmartKey from the ignition lock.
Always take the SmartKey with you and lock the vehicle. Do not leave children unattended
in the vehicle, ...
Important safety notes
While the vehicle is in motion, the tire
pressure loss warning system monitors the
set tire pressure using the rotational speed of
the wheels. This enables the system to detect
significant pre ...