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:
Front fog lamps and rear fog lamp
Front fog lamps
Only vehicles with front fog lamps have the
"fog lamps" function.
WARNING
If you suspect that driving conditions will be
foggy, turn the light switch to
b ...
Important safety notes
WARNING
Air bags are designed to reduce the incidence
of injuries and fatalities in certain situations:
- frontal impacts (driver's and frontpassenger
front air bags and driver's knee
bag)
- ...
Collision warning
If a vehicle is detected in the monitoring range
of Blind Spot Assist and you switch on the turn
signal, a double warning tone sounds. Red
warning lamp 1 flashes. If the turn signal
remains on, de ...