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:
Dashboard fuse box
Do not use a pointed object such as a
screwdriver to open the cover in the
dashboard. You could damage the
dashboard or the cover.
► To open: pull cover 1 outwards in
the
direction ...
Cargo tie-down rings
Observe the following notes on securing
loads:
- secure the load using the cargo tie down
rings.
- do not use elastic straps or nets to secure
a load, as these are only intended as an
anti-s ...
Cleaning the headliner and carpets
► Roof lining: use soft brushes or dry
shampoo if it is particularly dirty.
► Carpets: use carpet and textile cleaners
that have been approved and
recommended by Mercedes-Benz. ...