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:
Storing the current speed or calling upthe last stored speed
WARNING
The set speed stored in memory should only
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legal speed limits permit. Possible
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arising ...
SmartKey
Display messages
Possible causes/consequences and •► Solutions
Key Does Not
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You have put the wrong SmartKey in the ignition lock.
•► Use the correct ...
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As in the S-Class, the cabin is a highlight of the CL-Class, with
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