See also:

Fuel filler flap
The fuel filler flap is unlocked or locked automatically when you open or close the vehicle with the SmartKey or using KEYLESS-GO. The position of the fuel filler cap is displayed in the instru ...

Engaging parking position P in AMG vehicles
•► If the vehicle is stationary, press P button 1. ...

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. ...