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
Consult an authorized Mercedes-Benz Center
if you require information on approved and
recommended tires and wheels for summer
and winter operation. Advice on purchasing
and caring for tires is ...
Before changing a fuse
Park the vehicle and apply the electric
parking brake.
Switch off all electrical consumers.
Remove the SmartKey from the ignition
lock.
The fuses are located in various fuse boxes:
• fuse ...
General notes
You can store music files in MP3 or WMA
format in the MUSIC REGISTER. The memory
has a capacity of approximately 7 GB.
Retain the original music files in a secure
location. An error in COMAND ...