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:
Wet roads
WARNING
After driving in heavy rain for some time
without applying the brakes or through water
deep enough to wet brake components, the
first braking action may be somewhat
reduced. You have ...
State-of-the-art engine technology from the inventor of the diesel passenger
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The 2.2-litre CDI engine turns the ML 250 BlueTEC 4MATIC into the most
economical SUV in its class. With NEDC fuel consumption of 6.0 l/100 km, the
model even outperforms any hybrid model currentl ...
Important notes
This section provides detailed information on the following topics:
• selecting a channel and program category
• memory functions
• sound settings
The satellite radio mode described below
...