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. ...

Important safety notes
WARNING Only use fuses that have been approved for Mercedes-Benz vehicles and that have the correct fuse rating for the systems concerned. Do not attempt to repair or bridge faulty fuses. Us ...

Level control
Important safety notes Level control adapts the vehicle level automatically to the current operating and driving situation. This results in reduced fuel consumption and improved handling. If y ...