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:
Notes on selecting, mounting andreplacing tires
• Only mount tires and wheels of the same
type and make.
• Only mount tires of the correct size onto
the wheels.
• After mounting new tires, run them in at
moderate speeds for the first 60 miles ...
Setting the rear-compartment air vents
Setting the center vents in the rear compartment
Setting the center vents in the rear compartment
1 Rear-compartment air vent thumbwheel
2 Rear-compartment air vent, right
3 Rear control panel f ...
General notes
If you cannot lock or unlock the vehicle with
the SmartKey, either the battery in the
SmartKey is discharged, the SmartKey is
faulty or the starter battery is discharged.
•► Check the bat ...
