Mercedes-Benz M-Class Owners Manual
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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 ...
Convenience opening feature
You can ventilate the vehicle before you start
driving. To do this, the key is used to carry out
the following functions simultaneously:
- unlock the vehicle
- open the side windows
- open the ...
Operation
Depending on the date of manufacture of your vehicle, the
or
symbol for the automatic headlamp mode/daytime
running lamps is located on the light switch.
Illustration: light switch with the
...
