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DSR
General notes
i
DSR (Downhill Speed Regulation) is only
available for vehicles with the ON&OFF-
ROAD package.
DSR is an aid to assist you when driving down-
hill. It keeps the speed of travel at the speed
selected on the on-board computer. The
steeper the downhill gradient, the greater the
DSR braking effect on the vehicle. When driv-
ing on flat stretches of road or on an uphill
gradient, the DSR braking effect is minimal or
nonexistent.
DSR controls the vehicle’s speed when it is
activated and the transmission is in position
h, k or i. You can drive at a higher or a
lower speed than that set on the on-board
computer at any time by accelerating or brak-
ing.
Important safety notes
G
WARNING
If the speed driven and the set speed devi-
ate and you activate DSR on a slippery road
surface, the wheels may lose traction. There
is an increased danger of skidding and acci-
dents.
Before switching DSR on, please take into
consideration the road surface and the dif-
ference between driving speed and the set
speed.
If you fail to adapt your driving style, DSR can
neither reduce the risk of accident nor over-
ride the laws of physics. DSR cannot take
account of road, weather and traffic condi-
tions. DSR is only an aid. You are responsible
for the distance to the vehicle in front, for
vehicle speed, for braking in good time and for
staying in your lane.
You are always responsible for keeping control
of the vehicle and for assessing whether the
downhill gradient can be managed. DSR may
not always be able to keep to the set speed,
depending on road surface and tire conditions.
Select a set speed suitable for the prevailing
conditions and when necessary, apply the
brakes manually.
Further information about "Driving off-road"
(Y page 153).
Activating/deactivating DSR
If you activate DSR and no speed has been
set, the vehicle decelerates to 4 mph (Canada:
6 km/h).
You can only activate DSR when driving at
speeds below 19 mph (Canada: 30 km/h).
Activating DSR
X
Press button :.
Indicator lamp ; lights up.
The status indicator in the multifunction dis-
play shows, e.g. DSR 6 km/hDSR 6 km/h.
If the current vehicle speed is too high, the
DSR symbol appears on the multifunction dis-
play. You will also see the message: Max.Max.
Speed 30 km/hSpeed 30 km/h .
If you enter or exit a parking space using
Active Parking Assist, and press button :,
indicator lamp ; flashes. DSR can then not
be switched on.
Deactivating DSR
X
Press button :.
Indicator lamp ; goes out.
The DSR symbol appears in the multifunc-
tion display with the OffOff message.
DSR is deactivated automatically if you drive
faster than 22 mph (Canada: 35 km/h). The
DSR symbol appears in the multifunction dis-
play along with the OffOff message. You also
hear a warning tone.
Driving systems
169
Driving and parking
Z
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