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. ...

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 ...

General notes
WARNING If the vehicle becomes trapped in snow, ensure that snow is kept away from the exhaust pipe and from around the vehicle as long as the engine is running. Otherwise, poisonous carbon ...