See also:

High outside temperatures
If DEF heats up to over 122 °F (50 °C ) for extended periods, e.g. as a result of direct sunlight on the DEF reservoir, DEF can decompose. Ammonia vapors develop as a result. WARNING When o ...

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. ...

Removing a wheel
► Unscrew the uppermost wheel bolt completely. ► Screw alignment bolt 1 into the thread instead of the wheel bolt. ► Unscrew the remaining wheel bolts fully. Do not place wh ...