2004 Mercedes-Benz M-Class Review
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 ...
Hiding display messages
You can hide some display messages with a low priority.
► Press the
,
button on the steering wheel to
select another display.
or
► Press the R reset button on the instrument clus ...
Front air bags
The front air bags increase protection for the
driver's and front-passenger's head and
chest.
Driver's air bag 1 deploys in front of the
steering wheel; front-passenger front air
bag 2 depl ...
