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:
System self-test
The indicator lamp illuminates
when you:
• turn the SmartKey to position 1 or 2 in the ignition lock
• press the KEYLESS-GO Start/Stop button once or twice
If an adult occupant is properly s ...
Opening and closing the sidewindows
1 Front left
2 Front right
3 Rear right
4 Rear left
The switches for all side windows are located
on the driver's door. There is also a switch on
each door for the corresponding side window.
...
Rear
Rear
...