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:
Seat belts
Display messages
After starting the
engine, the red seat
belt warning lamp lights
up for six seconds.
Possible causes/consequences and ►
Solutions
The seat belt warning lamp reminds the ...
Please bear the following in mind
At the onset of winter, have your vehicle
winterproofed at a qualified specialist
workshop, e.g. at an authorized Mercedes-
Benz Center.
Observe the notes in the "Changing a wheel"
...
Ashtray in the rear-compartment center
console
The ashtrays are located in the rear doors.
To open: lift up cover 2.
To remove the insert: press open
cover 2 past the stop.
Insert 1 pops out of the holder.
Lift insert 1 up and out.
To ...