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:
Chassis and suspension: Agile handling and high comfort
The AGILITY CONTROL suspension, which is standard equipment in both the
C-Class Saloon and Estate, harmonises perfectly with the dynamic design. It is
based on an amplitude-dependent damping syste ...
Tire pressure monitor warning messages
If the tire pressure monitor detects a significant pressure loss on one or more
tires, a warning message is shown in the multifunction display. A warning tone also
sounds and the tire pressure war ...
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 ...