Dsr (Downhill Speed Regulation) - Mercedes-Benz Sprinter Operating Instructions Manual

Engaging and disengaging LOW RANGE
Engages and disengages LOW RANGE –
:
vehicles without DSR
Engages and disengages LOW RANGE –
;
vehicles with DSR
The button for LOW RANGE transmission
ratio : is replaced by button ; on vehicles
with DSR (Downhill Speed Regulation).
X
To engage or disengage: press button :
or ;.
The + indicator lamp flashes in the instru-
ment cluster for the duration of the engaging/
disengaging process.
If the engaging/disengaging process is suc-
cessful:
and LOW RANGE is engaged, the + indi-
R
cator lamp lights up.
and LOW RANGE is disengaged, the +
R
indicator lamp goes out.
As long as the + indicator lamp is flashing,
you can cancel the engaging/disengaging
process by pressing button : or ; again.
If the engaging/disengaging process fails, the
+ indicator lamp briefly flashes three
times. One of the conditions for changing
gear was not met.

DSR (Downhill Speed Regulation)

Important safety notes
Observe the notes on braking in the section on
"Driving and parking". If you fail to adapt your
driving style or you are inattentive, DSR can nei-
ther reduce the risk of accident nor override the
laws of physics. DSR cannot take road, weather
and traffic conditions into account. DSR is only
an aid. You are responsible for the distance to
the vehicle in front, for vehicle speed and for
braking in good time.
General notes
DSR supports you with the LOW RANGE trans-
mission ratio when you are driving downhill off-
road and on construction sites. DSR maintains a
preset speed for you on downhill gradients by
applying the brakes as required. Maintaining the
speed is dependent on the road surface condi-
tions and the downhill gradient and cannot
therefore be guaranteed in all situations.
You can set the speed to between 4 km/h and
18 km/h using the brake and accelerator pedals
or the cruise control lever.
If the vehicle is stationary, or its speed is less
R
than 4 km/h, the speed is set to 4 km/h.
If you drive faster than 18 km/h off-road, DSR
R
switches to standby mode. DSR remains acti-
vated, but does not brake automatically.
If you drive downhill slower than 18 km/h,
R
DSR sets the speed to the previously set
speed.
If you drive faster than 45 km/h, DSR
R
switches off automatically.
Cruise control lever
Activates DSR and stores the current or
:
higher speed
LIM indicator lamp – has no function for DSR
;
Activates DSR and stores the current speed
=
Activates DSR and stores the current or
?
lower speed
Changes between cruise control and varia-
A
ble SPEEDTRONIC – has no function for DSR
Deactivates DSR
B
The cruise control lever is the uppermost lever
on the left of the steering column. For as long as
the LOW RANGE transmission ratio is engaged,
only use the cruise control lever to operate DSR.
When the LOW RANGE transmission ratio is dis-
engaged, only use the cruise control lever to
Driving systems
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