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:
Removing a wheel
Unscrew the wheel bolts.
Do not place wheel bolts in sand
or on a
dirty surface. The bolt and wheel hub
threads could otherwise be damaged when
you screw them in.
Remove the w ...
Steering wheel paddle shifters
1 Left-hand steering wheel paddle shifter
2 Right-hand steering wheel paddle shifter
You can restrict or derestrict the shift range
by using the steering wheel paddle shifters.
You can change ...
Safety systems
Problem
Possible causes/consequences and •► Solutions
(USA only)
(Canada only)
The red brake system
warning lamp comes on
while the engine is
running. A warning ...