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:
Registering satellite radio
Select Audio in the main function bar by
sliding and turning
the COMAND
controller and press to confirm.
Select Sat. Radio and press
to
confirm.
Service information screen
1 Provid ...
Notes on using climate control
The following contains notes and
recommendations on optimum operation of
dual-zone automatic climate control.
- Activate climate control using the
and
buttons. The indicator lamps in
the ...
Cleaning the seat belts
Use clean, lukewarm water and soap
solution.
Do not clean the seat belts
using chemical
cleaning agents. Do not dry the seat belts
by warming them above 176 °F (80 °C) or
placing th ...