Conditions for engaging/disengaging
LOW RANGE can only be engaged or disengaged
if:
R
the engine is running
R
the vehicle is stationary
R
the brake pedal is depressed
R
the selector lever of the automatic transmis-
sion is in position P or N
R
all-wheel drive is engaged
Engaging and disengaging LOW RANGE
:
Engages and disengages LOW RANGE
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:
R
and LOW RANGE is engaged, the + indi-
cator lamp lights up.
R
and LOW RANGE is disengaged, the +
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 gear change conditions was
not fulfilled.
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 2.5 mph
(4 km/h) and 11 mph (18 km/h) using the brake
and accelerator pedals or the cruise control
lever.
R
If the vehicle is stationary, or its speed is less
than 2.5 mph (4 km/h) the speed is set to
2.5 mph (4 km/h).
R
If you drive faster than 11 mph (18 km/h) off-
road, DSR switches to standby mode. DSR
remains activated, but does not brake auto-
matically.
R
If you drive downhill slower than 11 mph
(18 km/h), DSR sets the speed to the previ-
ously set speed.
R
DSR switches off automatically if you drive
faster than 28 mph (45 km/h).
Cruise control lever
:
Activates DSR and stores the current or
higher speed
;
Activates DSR and stores the current speed
=
Activates DSR and stores the current or
lower speed
?
Deactivates DSR
The cruise control lever is the uppermost lever
on the left of the steering column. For as long as
Driving systems
149
Driving and parking
Z