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:
Loading guidelines
WARNING
Always fasten items being carried as securely as possible using cargo tie-down
rings and fastening materials appropriate for the weight and size of the load.
In an accident, during ha ...
Top Tether
WARNING
Always lock the rear seat backrests in their
upright position when the rear seats are
occupied by passengers. Lock the rear seat
backrests in their upright position before
installin ...
Message memory
The on-board computer saves certain display messages. You can call up the
display messages
in the message memory.
•► Press the button on the steering
wheel to select the Serv. menu.
If ...