See also:

Additives
Only use DEF in accordance with ISO 22241. Do not use additives with DEF and do not dilute DEF with water. This may destroy the BlueTEC exhaust gas aftertreatment system. ...

Control panel for dual-zone automatic climate control
To set the temperature, left () To set climate control to automatic () To switch climate control on/off () To switch the MONO function on/off14() To switch maximum cooling MAX COOL on/off ...

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 wor ...