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:
Switching the display design
Select Settings using the
button
and confirm with the button.
Select Day Mode, Night Mode or
Automatic using the buttons
and press the button to confirm.
The icon indicates the curren ...
Extending/retracting the roller sunblind
Make sure that the roller
sunblind can
move freely. Otherwise, the roller sunblind
or other objects could be damaged.
Turn the SmartKey to position 2
in the
ignition lock.
To extend o ...
Problems with the seat heating
The seat heating has switched off
prematurely or cannot be switched on. The
vehicle's electrical system voltage is too low
because too many electrical consumers are
switched on.
Switch off e ...
