See also:

MAX COOL maximum cooling
The MAX COOL function is only available in vehicles for the USA. MAX COOL is only operational when the engine is running. When you activate MAX COOL, climate control switches to the following ...

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 ...

Important safety notes
RACE START is only available in AMG vehicles. RACE START enables optimal acceleration from a standing start. The precondition for this is a suitable high-grip road surface. WARNING RACE S ...