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:
Introduction
You can establish a Bluetooth® connection to
COMAND (see the separate operating
instructions).
WARNING
A driver's attention to the road must always
be his/her primary focus when driving. For ...
Deactivating/activating ESP® (except AMG vehicles)
WARNING
ESP® should not be deactivated during
normal driving other than in the
circumstances described below. Disabling
the system will reduce vehicle stability in
driving maneuvers.
Do no ...
Manual interior lighting control
To switch the front interior lighting on/off: press the c button.
To switch the rear interior lighting on/off: press the u button.
To switch the reading lamps on/off: press the p button. ...