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:
Securing the vehicle to prevent it from
rolling away
WARNING
Only jack up the vehicle on level ground or on
slight inclines/declines. The vehicle could
otherwise fall off the jack and injure you or
others.
If your vehicle is equipped with a wh ...
The windshield wipers are inoperative
The windshield wiper drive is malfunctioning.
Select another wiper speed on
the
combination switch.
Have the windshield wipers checked
at a
qualified specialist workshop. ...
Calling up the compass
The compass shows which direction the
vehicle is currently traveling in: N, NE, E, SE,
S, SW, W or NW.
To obtain a correct display in rear-view
mirror 1, the compass must be calibrated
and ...