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:
Checklist after driving off-road
WARNING
If you notice sudden significant vibrations or
unusual handling performance or if you
suspect that damage has occurred to the
vehicle, you should activate the hazard
warning l ...
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 mbrace ...
Cleaning the exterior lighting
Clean the plastic lenses of the exterior lights with a wet sponge and
a mild cleaning agent, e.g. Mercedes-Benz car shampoo or cleaning cloths.
Only use cleaning agents or cleaning cloths ...
