See also:

Neutral N with ECO start/stop function activated
The ECO start/stop function switches the engine off automatically if the vehicle is braked to a standstill when in neutral N and the brake is still depressed. For further information on the ECO ...

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. ...

Starting the engine
Important safety notes WARNING   Inhalation of exhaust gas is hazardous to your health. All exhaust gas contains carbon monoxide (CO), and inhaling it can cause unconsciousness and poss ...