See also:

Closing
Replace the fuel filler cap and turn it clockwise. The fuel filler cap audibly engages. Close the fuel filler flap. If you drive with the fuel filler cap open, reserve fuel warning lamp ...

Important safety notes
If a tire pressure monitor system is installed, the vehicle's wheels have sensors that monitor the tire pressures in all four tires. The tire pressure monitor warns you when the pressure drops in ...

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. ...