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:
Hiding display messages
You can hide some display messages with a low priority.
Press the or
button on the steering wheel to
hide the display message. The display message is cleared.
Display messages with a hig ...
Data stored in the vehicle
Information about electronic data acquisition in the vehicle
(Including notice pursuant to California Code § 9951)
Your vehicle records electronic data. If your vehicle is equipped with mbrace1,
d ...
Engine emergency off
If the engine cannot be switched off as
described, observe the following procedure:
Take the fuse allocation chart out of the
vehicle document wallet.
Search for “Emergency engine shutdown”
...