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 in gasoline
One of the major problems with poor quality fuels is the creation of carbon deposits during the combustion process. Mercedes-Benz recommends that you use fuel brands containing additives that prev ...

"Minispare" emergency spare wheel
The "Minispare" emergency spare wheel can be found in the stowage well under the trunk floor.   Lift the trunk floor up.   Remove tool kit tray 1.   Turn stowage well ...