Mercedes-Benz 2013 M Class - Manual (Page 249)

surface and tire conditions. Select a set
speed suitable for the prevailing conditions
and when necessary, apply the brakes
manually.
G
WARNING
If the speed driven and the set speed deviate
and you activate DSR on a slippery road
surface, the wheels may lose traction. If the
wheels lose traction. the vehicle can no longer
be steered. There is an increased danger of
skidding and accidents.
Never activate DSR on slippery road surfaces.
Activating DSR
G
WARNING
If you drive faster than the set speed and
activate DSR, the vehicle will decelerate on
downhill gradients. If you do not know the set
speed, the vehicle could decelerate
unexpectedly. There is a risk of an accident.
Decelerate the vehicle to the set speed before
activating DSR. If you do not know what the
stored set speed is, store the desired set
speed again.
Example: vehicles with the ON&OFFROAD package
:
DSR button
;
DSR indicator lamp
X Press button :.
Indicator lamp ; lights up.
The à DSR symbol appears in the
multifunction display.
You can only activate DSR when driving at
speeds below 25 mph (40 km/h).
If the current vehicle speed is too high, the
à DSR symbol appears in the
multifunction display with the
Max. Speed
25 mph message (Canada: 40 km/h ).
i You cannot activate DSR if the SPORT on-
road program is activated. The à DSR
symbol and the
Not in Drive Program
SPORT message then appear in the
multifunction display.
Deactivating DSR
X Press button :.
Indicator lamp ; goes out.
The à DSR symbol appears in the
multifunction display with the
Off
message.
DSR switches off automatically if you drive
faster than 28 mph (Canada: 45 km/h). The
à DSR symbol appears in the
multifunction display with the
Off message.
The status indicator in the multifunction
display goes out. You also hear a warning. On
vehicles with the ON&OFFROAD package, if
you select a different on-road/off-road
program, DSR is also deactivated.
Changing the set speed
Driving systems
247
Driving and parking
Z