Low Range Transmission Ratio - Mercedes-Benz Sprinter Operating Instructions Manual

Driving systems
168
Engaging all-wheel drive
Conditions for engaging/disengaging
All-wheel drive can only be engaged or disen-
gaged if:
the engine is running
R
the vehicle is not travelling faster than
R
10 km/h
the vehicle is not being driven around a bend
R
If it is not possible to engage all-wheel drive
when the vehicle is rolling:
depress the clutch pedal on vehicles with
R
manual transmission
shift the selector lever briefly to position N on
R
vehicles with automatic transmission
i It is not possible to engage all-wheel drive
when the vehicle is stationary. Move the
selector lever from N to D or R and back
again.
i When you engage all-wheel drive, variable
SPEEDTRONIC is automatically deactivated.
The corresponding display message is
cleared. You may need to reactivate variable
SPEEDTRONIC after disengaging all-wheel
Y
drive ( page 157).
Engaging/disengaging all-wheel drive
X
To engage/disengage: press the ; but-
ton.
The indicator lamp in the ; button flashes.
The h and : indicator lamps light up in
the instrument cluster. ESP
deactivated for the duration of the engaging/
disengaging process.
If the engaging/disengaging process is suc-
cessful, the h and : indicator lamps in
the instrument cluster go out and ESP
ASR are reactivated.
As long as the indicator lamp in the ; button
is flashing, you can cancel the engaging/disen-
gaging process by pressing the ; again.
i

LOW RANGE transmission ratio

General notes
The LOW RANGE transmission ratio assists you
when driving on difficult terrain. If you engage
LOW RANGE, the engine's performance charac-
teristics and the automatic transmission's shift-
ing characteristics are adjusted accordingly.
The transmission ratio from the engine to the
wheels is around 40 % lower than in the on-road
position. The drive torque is increased corre-
spondingly.
Conditions for engaging/disengaging
LOW RANGE can only be engaged or disengaged
if:
R
R
R
R
R
R
®
and ASR are
®
and
If the indicator lamp in the ; button is lit,
all-wheel drive is engaged. On vehicles with
steering-wheel buttons, the display then
shows the following message:
drive active.
If the engaging/disengaging process fails, the
indicator lamp in the ; button flashes
three times briefly. One of the conditions for
changing gear was not met.
If the LOW RANGE transmission ratio
Y
( page 168) is engaged, all-wheel drive can-
not be disengaged.
the engine is running
the vehicle is stationary
the brake pedal is depressed
the manual transmission is in neutral
the selector lever of the automatic transmis-
sion is in position P or N
all-wheel drive is engaged
Four-wheel