ents, the DSR brakes the vehicle minimally or
not at all.
When DSR is activated and the transmission is in
position h, k or i, DSR controls the driving
speed. The target speed can be set to a value
between 1 mph (2 km/h) and 11 mph
(18 km/h). By braking or accelerating, you can
drive at a higher or lower speed than the target
speed at any time.
DSR is deactivated automatically if you drive at
speeds greater than 28 mph (45 km/h) or select
drive program C. The î Off message
then appears in the multifunction display. The
status indicator in the multifunction display dis‐
appears. You also hear a warning tone.
Notes on DSR
&
WARNING Risk of skidding and accident
when DSR is activated on slippery road
surfaces
If the driven speed and the target speed dif‐
fer, the wheels may lose traction.
#
Take into account the road surface and
the difference between the driving
speed and target speed before activat‐
ing DSR.
Observe the notes on driving systems and your
responsibility; you may otherwise fail to recog‐
nize dangers (/ page 172).
You are always responsible for keeping control of
the vehicle and for assessing whether the down‐
hill gradient can be negotiated. Depending on
road surface and tires, DSR may not always be
able to keep to the target speed. Select a target
speed suitable for the environmental conditions
and also apply the brakes yourself if required.
Activating or deactivating DSR (Downhill
Speed Regulation)
Requirements:
R
You are driving at 25 mph (40 km/h) or
slower.
If the current vehicle speed is too high, the
Max. Speed 24 mph message appears in the
multifunction display.
R
Active Distance Assist DISTRONIC is deacti‐
vated.
Multimedia system:
4
©
5
Settings
5
Quick Access
#
Select î.
A status display appears in the multifunction
display when the function is activated.
Changing the target speed
184
Driving and parking
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