See also:

Important safety notes
WARNING If you tow the vehicle, you must use a rigid towing bar if: the engine is not running. there is a brake system malfunction. there is a malfunction in the power supply or the vehi ...

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 ...

Styling
The 2012 M-Class retains many of the previous generation's styling cues, like a wide front grille and forward-swept C-pillars, but the new design looks more substantial and imposing. Contributing ...