See also:

SETUP
SETUP shows the drive program, the ESP® (Electronic Stability Program) mode and the SPORT handling mode. Press or on the steering wheel to select the AMG menu. Press the button repeate ...

System self-test
After you have switched on the ignition, the system carries out a self-diagnosis. WARNING A malfunction in the system has been detected if one of the following conditions occurs: • the indi ...

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 ...