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:
Overall evaluation
This function is shown if you have stored at
least one lap and stopped the RACETIMER.
Press or
on the steering wheel
to select the AMG menu.
Press the button repeatedly
until the
overa ...
System self-test
After you have switched on the ignition, the
system carries out a self-diagnosis.
WARNING
A malfunction in the system has been
detected if one of the following conditions
occurs:
• the indi ...
Installing the towing eye
Vehicles with a trailer tow hitch: if possible, secure the towing device on the
trailer tow hitch ().
X Remove the towing eye from the vehicle tool kit ().
WARNING
The exhaust tail pipe may ...