See also:

Function restrictions
For safety reasons, some COMAND functions are restricted or unavailable while the vehicle is in motion. You will notice this, for example, because you will either not be able to select certain ...

Important safety notes
WARNING When expanding the cargo volume, always fold the seat backrests fully forward. Unless you are transporting cargo, the seat backrests must remain properly locked in the upright posi ...

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 ...