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
Gasoline and diesel fuels are highly flammable
and poisonous. They burn violently and can
cause serious injury.
Never allow sparks, flames or smoking
materials near gasoline or die ...
Tire pressure of cold tires
The tires are cold:
• if the vehicle has been parked without
direct sunlight on the tires for at least three
hours and
• if the vehicle has not been driven more than
1 mile (1.6 km). ...
Exhaust check
WARNING
Inhalation of exhaust gas is hazardous to your health. All exhaust gas contains
carbon monoxide (CO), and inhaling it can cause unconsciousness and possible death.
Do not run the engi ...