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:
Important safety notes
WARNING
In order to help prevent spilling liquids on
vehicle occupants and/or vehicle equipment,
only use containers that fit into the cup
holder. Use lids on open containers and do
not fil ...
Removing a wheel
Unscrew the wheel bolts.
Do not place wheel bolts in sand or on a dirty surface. The bolt and wheel
hub threads could otherwise be damaged when you screw them in.
Remove the wheel.
...
Trip computer "From start" or "From
reset"
The values in the From Start submenu are
calculated from the start of a journey, while
the values in the From Reset submenu are
calculated from the last time the submenu
was reset.
– Press th ...