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:
Cup holder in the rear seat armrest
Do not sit on or support your body weight
on the rear seat armrest when it is folded
down, as you could otherwise damage it.
Close the cup holder before folding the
rear seat armrest up. Othe ...
Cleaning the wheels
WARNING
Do not use power washers with circular-jet
nozzles (dirt grinders) to clean your vehicle, in
particular the tires. You could otherwise
damage the tires and cause an accident. ...
Safety guidelines for seat belts, Emergency Tensioning Devices (ETDs) and air
bags
WARNING
Damaged seat belts or seat belts that have been subjected to stress in
an accident must be replaced. Their anchoring points must also be checked. Only
use seat belts installed o ...