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:
Important safety notes
WARNING
On slippery road surfaces, never downshift in order to obtain braking action.
This could result in drive wheel slip and reduced vehicle control. Your vehicle's
ABS will not preve ...
Stowage compartments in the front
Glove box
The glove box can be cooled.
To open: pull handle 1
and open glove box
flap 2.
To close: fold glove box
flap 2 upwards
until it engages.
The glove box can only be locked and ...
Additional systems for the ultimate in listening pleasure and entertainment
Mercedes customers can, if desired, combine the infotainment facilities for
the CLS with other systems:
The Logic7 surround sound system developed by Mercedes-Benz together with the
audio specia ...