See also:

Rear window defroster
Activating/deactivating WARNING   Any accumulation of snow and ice should be removed from the rear window before driving. Visibility could otherwise be impaired, endangering you and o ...

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 ...

Search & Send
Points to observe before use To use Search & Send, your vehicle must be equipped with mbrace and a navigation system. You must also have an mbrace service subscription. "Search & ...