Mercedes-Benz M-Class 2009 Owners Manual - Manual (Page 147)

Control system
145
by opening the engine hood. Stay away
from the engine if you see or hear steam
coming from it.
Stop the vehicle in a safe location away
from other traffic. Turn off the engine, get
out of the vehicle and do not stand near the
vehicle until the engine has cooled down.
X Press button j or k repeatedly until
the coolant temperature appears in the
multifunction display.
During severe operating conditions, e.g. stop-
and-go traffic, the coolant temperature may
rise close to 248‡ (120†).
! Excessive coolant temperature triggers a
warning in the multifunction display.
The engine should not be operated with a
coolant temperature above 248‡
(120†). Doing so may cause serious
engine damage which is not covered by the
Mercedes-Benz Limited Warranty.
Calling up digital speedometer or
outside temperature
You can select whether the digital
speedometer or the outside temperature
appears in the multifunction display
(
Y page 154).
G Warning!
The outside temperature indicator is not
designed to serve as an ice-warning device
and is therefore unsuitable for that
purpose.
Indicated temperatures just above the
freezing point do not guarantee that the
road surface is free of ice. The road may still
be icy, especially in wooded areas or on
bridges.
X Press button j or k repeatedly until
the digital speedometer or the outside
temperature appears in the multifunction
display.
Digital speedometer
Outside temperature
AMG menu
This function is only available in AMG
vehicles.
The main screen of the
AMG menu shows you
the gear currently engaged as well as the
engine oil temperature.
X Press button è or ÿ repeatedly until
the AMG menu appears in the
multifunction display.
Controls in detail
Z