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:
Dialing a number from the phone book
If your mobile phone is able to receive calls, you can search for and dial a
number from the phone book in the audio system or COMAND at any time.
Copy the telephone book of the mobile phone int ...
System self-test
The indicator lamp illuminates when
you:
turn the SmartKey to position 1 or 2 in the ignition lock
on vehicles with KEYLESS-GO, press the Start/Stop button once or twice
If an adult occupa ...
Lights
Display messages about LEDs:
This display message will only appear if all LEDs have failed.
Display messages
Cornering Lamp
Left or Cornering
Lamp Right
Possible causes/consequences an ...
