2007 MERCEDES-BENZ ML500 Shift program

197 Controls in detail
Automatic transmission
Upshifting
Briefly press right shift button2
(page 194).
The transmission shifts to the next
higher gear.If you have selected the AMG menu in the
control system and you are driving in the
manual program modeM, upshift
indicator2 in the multifunction display
advises you to upshift before the engine
reaches the overspeed range. Thus you
can drive at the maximum engine speed for
each gear without overrevving the engine.
1Gear indicator
2Upshift indicator

Shift to the next higher gear.
The fuel supply will otherwise be inter-
rupted to prevent the engine from over-
revving.Downshifting

Briefly press left shift button1
(page 194).
The transmission shifts to the next
lower gear.
i
The manual program modeM will not be
stored. When the engine is turned off with the
manual program modeM selected, the transmis-
sion will go to the automatic program mode
(CorS) when the engine is restarted.
!
In the manual program modeM, the trans-
mission will not upshift, even if the engine has
reached its overrewing range. Shift up to the
next gear before the engine has reached its over-
rewing range. Make absolutely certain that the
engine speed does not reach the red marking on
the tachometer (
page 28). Otherwise the en-
gine could be damaged which is not covered by
the Mercedes-Benz Limited Warranty.
Warning!
G
On slippery road surfaces, never downshift
in order to obtain braking action. This could
result in drive wheel slip and reduced
vehicle control. Your vehicle’s ABS will not
prevent this type of loss of control.i
When you brake or stop, the transmission
shifts down to a gear from which you can easily
accelerate or drive off.

198 Controls in detailAutomatic transmissionKickdown
Using the kickdown when driving in the
manual program modeM is not possible.
Deactivating manual shift program
Press the program mode selector
switch (
page 195) repeatedly until
Cor
S appears in the multifunction
display.
or

Restart the engine.
The transmission will go to the
automatic program mode (C orS).
The manual program modeM is not
stored.Emergency operation (Limp-Home
Mode)
If vehicle acceleration becomes less re-
sponsive or sluggish or the transmission
no longer shifts, the transmission is most
likely operating in limp-home (emergency
operation) mode. In this mode only second
gear and reverse gear can be activated.
Stop the vehicle in a safe location.

Shift to park positionP.

Turn off the engine.

Wait at least 10 seconds before
restarting.

Restart the engine.

Shift to drive positionD (for second
gear) or reverse gearR.

Have the transmission checked at an
authorized Mercedes-Benz Light Truck
Center as soon as possible.

264 Controls in detailDriving systemsDownhill Speed Regulation (DSR)For more information, see “Off-road driv-
ing” (
page 333).
The DSR is an aid for driving downhill. DSR
regulates your vehicle’s speed when driv-
ing downhill to the value set in the control
system (page 179). The steeper the
downhill gradient is, the greater the brake
application. On flat road surfaces, DSR
brakes only slightly or not at all.
DSR regulates the vehicle’s speed in auto-
matic transmission positionsD, orR.
You can drive slower or faster than the set
speed at any time by braking the vehicle or
depressing the accelerator pedal.
Warning!
G
Downhill Speed Regulation is a convenience
system designed to assist the driver during
vehicle operation. The system must be set
to be appropriate for the topographical and
weather conditions encountered which can
change quickly. The driver is and must
remain at all times responsible for the vehi-
cle speed and for safe brake operation.
Depending on the programmed speed
(page 179), actual vehicle speed and gra-
dient, switching on the DSR while driving
can cause the vehicle to slow down rapidly
and you may hear a sound which is caused
by the activation of the vehicle’s brake sys-
tem through the DSR. Sudden and unex-
pected deceleration can result in loss of
vehicle control, causing an accident and/or
serious personal injury to you and others.
Do not switch on the DSR in a circumstance
where rapid deceleration could result in a
loss of vehicle control.
i
In addition, make use of the engine’s braking
effect by shifting the automatic transmission
into a lower gear.
i
Whenever DSR is switched on, DSR will use
the programmed default speed to regulate the
vehicle’s speed. The default speed programmed
at the factory is 4 mph (Canada: 6 km / h). The
default speed can be reprogrammed using the
control system (
page 179). The next time DSR
is switched on, DSR will use the newly pro-
grammed default speed to regulate the vehicle’s
speed.
Once DSR is switched on, you can adjust the set
speed using the cruise control lever
(
page 255). Keep in mind that adjusting the
set speed using the cruise control lever with DSR
switched on will not change the programmed
default speed. If DSR is switched off and then
switched on again, DSR will use the programmed
default speed.
Depending on the road surface and level of
downhill grade, the DSR may not be able to
maintain the set speed. To maintain the set
speed, apply the brakes if necessary.

268 Controls in detailDriving systemsOff-road driving program
The off-road driving program is designed to
assist the driver when driving off-road in
terrain and crossing water. The off-road
driving program adjusts the engine power
and shifting of the automatic transmission
to be more suitable for the off-road use of
the vehicle. In addition, the ABS, ESP
®, and
4-ETS designed for off-road use are
automatically activated.
In the following situations you should
switch to the off-road driving program:


during off-road driving


when crossing water (
page 338)


when towing up or down on steep
gradientsThe switch is located on the lower part of
the center console.
1Switch for off-road driving program
2Indicator lampSwitching Off-road driving program on

Press switch1 (
page 268).
Indicator lamp2 comes on. The
symboly appears in the lower
multifunction display.
Switching Off-road driving program off

Press switch1 again.
Indicator lamp2 goes out. The
symboly disappears.
i
In the ML 63 AMG, the off-road driving
program is switched on and off via the control
system (
page 159).

324 OperationIn the “Operation” section you will find
detailed information on operating, main-
taining and caring for your vehicle.The first 1000 miles (1500 km)
The more cautiously you treat your vehicle
during the break-in period, the more satis-
fied you will be with its performance later
on.

Drive your vehicle during the first
1000 miles (1500 km) at varying but
moderate vehicle and engine speeds.


During this period, avoid heavy loads
(full throttle driving) and excessive
engine speeds (no more than
2/3 of
maximum rpm in each gear).


Shift gears in a timely manner.


Avoid accelerating by kick-down.


Do not attempt to slow the vehicle
down by shifting to a lower gear using
the gear selector lever.


Select gear ranges3, 2 or1
(page 193) only when driving at
moderate speeds (for hill driving).After 1000 miles (1500 km) you may
gradually increase vehicle and engine
speeds to the permissible maximum.
All of the above instructions, as may apply
to your vehicle type, also apply when driv-
ing the first 1000 miles (1500 km) after
the engine, the transfer case, the front dif-
ferential or the rear differential has been
replaced.
!
Additional instructions for ML 63 AMG:


During the first 1000 miles (1500 km), do
not exceed a speed of 85 mph (140 km/h).


During this period, avoid engine speeds
above 4500 rpm in each gear.


Shift gears at the correct time.


SelectC as the preferred shift program
(page 195) for the first 1000 miles
(1500 km).
i
Always obey applicable speed limits.

335 Operation
Driving instructions
Off-road driving rules

Engage the off-road driving program
(page 268) before driving under
off-road conditions.


Vehicles with air suspension package*:
Make sure you select a vehicle level
(page 270) appropriate to the topo-
graphical conditions. Always make
sure the vehicle has enough ground
clearance.


Fasten items being carried as securely
as possible (
page 281).


Always navigate gradients with the en-
gine on and with the transmission en-
gaged in a gear. Switch on the DSR
(page 265) to help maintain a preset
speed.
!
Observe the following during off-road
driving:


Keep doors, tailgate, windows, and
tilt/sliding sunroof* closed whenever driving
off-road.


Adjust vehicle speed to condition of terrain.
The more uneven, rutty and steeper the ter-
rain, the lower the speed should be. Drive
through water slowly at an even speed,
avoiding a bow wave.


Be especially careful when driving in un-
known territory. It may be necessary to get
out of the vehicle and scout the path you in-
tend to take.


Watch out for obstacles, such as rocks,
holes, tree stumps and ruts.


Before driving through water, determine its
depth.


Do not stop vehicle while immersed in water,
and do not shut off the engine.


In sandy soil, drive at a steady speed as al-
lowed by conditions. This helps overcome
the vehicle rolling resistance and reduces
the likelihood of the vehicle sinking into the
ground.


Do not initiate jumps with the vehicle. It
interrupts the forward momentum of the
vehicle.


Always drive onto slopes with the engine
running and the vehicle in gear.


Do not shift automatic transmission to
positionN.Warning!
G
Do not reduce the tire inflation pressure
before driving through sand. However, if you
do so, remember to correct the tire inflation
pressure (
page 375) before continuing
your trip. Driving with reduced tire inflation
pressure increases the risk of losing control
of the vehicle and rolling over.

339 Operation
Driving instructions


Before driving through water, deter-
mine its depth.


Vehicles with air suspension package*:
Select the highest vehicle level
possible (
page 270).


Switch to off-road driving program
(page 268) before driving through
water.


Shift automatic transmission to
position1 or2 (
page 193).


Avoid high engine speeds.


Enter and leave the water only at a
shallow spot, driving at walking speed.


Drive through the water slowly and at a
constant speed.


Do not stop vehicle while immersed in
water, and do not shut off the engine.


There is a very high level of driving re-
sistance in water. The surface is slip-
pery and may not be firm, making
pulling away in water difficult and dan-
gerous.


Make sure that only small bow waves
are formed when driving the vehicle
through water.


Clean mud off the tire tread after driv-
ing through water.


To dry the brakes, apply pressure to the
brake pedal several times while driving
after leaving the water.Crossing obstacles
!
The water depth must not exceed the
respective value listed in the table. The ground
under the water might not be firm which could
result the water being deeper than expected
when driving the vehicle through it. Please note
that the water level is correspondingly lower for
flowing water.
!
Never accelerate before driving into the
water. The bow wave could force water into the
engine and auxiliary equipment, thus damaging
them.
!
Do not open any of the vehicle’s doors while
driving through water. Water could otherwise en-
ter the vehicle interior and damage the vehicle’s
electronics, as well as the interior equipment.
!
Obstacles can damage the vehicle
underbody or suspension components. If possi-
ble use the assistance of a second person out-
side the vehicle to scout the path you intend to
take and check for adequate ground clearance
when you cross obstacles with your vehicle. The
person assisting you outside the vehicle should
always be a safe distance away from the vehicle
and positioned so that he or she cannot get hurt
in case of any unexpected vehicle movement.
After off-road driving or crossing obstacles, in-
spect vehicle for any damage, especially vehicle
underbody and suspension components. Failure
to do so can adversely affect the vehicle’s future
performance, including increased chance of an
accident.

340 OperationDriving instructionsWhen driving over tree stumps, big rocks
and other obstacles, observe the following
rules:

Make sure the off-road driving program
(page 268) is switched on.


Avoid high engine speeds.


Shift automatic transmission to
position1 (
page 193).


Check the vehicle clearance before
crossing obstacles.


Cross obstacles (e.g. tree stumps or
big rocks) very slowly by aiming one of
the front wheels at the center of the ob-
stacle, and repeat same with the rear
wheel.Driving on sand
When driving on sand, observe the follow-
ing rules:


Vehicles with air suspension package*:
Set the raised level (
page 270).


Avoid high engine speeds.


Shift automatic transmission into a
gear range that is appropriate for the
terrain.


In sandy soil, drive at a steady speed as
allowed by conditions. This helps over-
come the vehicle rolling resistance and
reduce the likelihood of the vehicle
sinking into the ground.


Drive in tracks of other vehicles if they
are not too deep and if you have suffi-
cient clearance.
Ruts
A number of off-road tracks or other by-
ways have deep ruts which can cause the
underbody to come in contact with the
ground.


Make sure the off-road driving program
(page 268) is switched on.


Vehicles with air suspension package*:
Set the raised level (
page 270).
!
Special attention is needed when you cross
obstacles on a steep incline.
The vehicle could slide sideways as a result of its
possible slanted position which in turn may
result in the vehicle tipping or rolling over.
Warning!
G
Do not reduce the tire inflation pressure
before driving through sand. However, if you
do so, remember to correct the tire inflation
pressure (
page 375) before continuing
your trip. Driving with reduced tire inflation
pressure increases the risk of losing control
of the vehicle and rolling over.