2006 MERCEDES-BENZ ML500 Owner's Manual

184 Controls in detailAutomatic transmissionShifting from D, R, or N to P
If you want to select park positionP with
the transmission being in drive positionD,
reverse positionR or neutral positionN:
Depress the brake pedal and keep it
pressed.

Step firmly on parking brake pedal
(page 52).

Press button at the end of the gear
selector lever in direction of arrow
(page 182) to select park positionP.

Release the brake.
Shifting procedure
The automatic transmission selects indi-
vidual drive gears automatically, depend-
ing on:

drive positionD with gear ranges
(page 187)


the position of the accelerator pedal
(page 190)


the vehicle speed
The current transmission gear selection
appears in the multifunction display.
With gear positionD selected, you can use
the steering wheel gearshift control but-
tons (
page 189) to influence transmis-
sion shifting by:


limiting the gear range


changing gears manually
!Shift the automatic transmission
directly from positionD toR, fromR
toD or dire c tly to pos itionP only when
the vehicle is stopped. Otherwise the
automatic transmission could be
damaged.
When trying to free a vehicle stuck in
mud or snow, see “Rocking the vehicle”
(page 191).
!Allow engine to warm up under low
load use. Do not place full load on the
engine until the operating temperature
has been reached.
Shift into reverse gearR or park
positionP only when the vehicle is
stopped.
Avoid spinning of a drive wheel for an
extended period when driving off on
slippery road surfaces. This may cause
serious damage to the drivetrain which
is not covered by the Mercedes-Benz
Limited Warranty.

185 Controls in detail
Automatic transmission
Transmission positions
Effect
ì
Park position
Shift into park positionP only
when vehicle is stopped. The
park position is not intended to
serve as a brake when the vehi-
cle is parked. Rather, the driver
should always set the parking
brake in addition to shifting into
park positionP to secure the
vehicle.
!SmartKey:
If you turn off the engine using the
SmartKey and remove the SmartKey
from the starter switch, the transmis-
sion automatically will shift to park
positionP. Keep in mind that turning
off the engine with the SmartKey alone
will not automatically shift the trans-
mission toP. Only when the SmartKey
is removed from the starter switch will
the transmission automatically shift
toP.
KEYLESS-GO*:
If you turn off the engine using the
KEYLESS-GO start/stop button and
open the driver’s door, the transmis-
sion automatically will shift to park
positionP. Keep in mind that turning
off the engine using the KEYLESS-GO
start/stop button alone will not auto-
matically shift the transmission toP.
Only when the driver’s door is opened
will the transmission automatically
shift toP.
Even though this is possible, make it a
practice to always shift into park
positionP before turning off the engine
and removing the SmartKey from the
starter switch, or when using
KEYLESS-GO*, before turning off the
engine with the start/stop button and
opening the driver’s door.Warning!
G
If you want the gear position to remain inN
(for example when the vehicle is pulled
through a car wash), do not remove the
SmartKey from the starter switch or, when
using KEYLESS-GO*, do not turn off the
engine using the KEYLESS-GO start/stop
button* and open the driver’s door. Other-
wise, the transmission will shift toP and
lock the wheels, preventing the vehicle from
being pulled through a car wash.

186 Controls in detailAutomatic transmission
Effect
í
Reverse gear
Shift into reverse gearR only
when the vehicle is stopped.
ë
Neutral
No power is transmitted from the
engine to the drive axle. When
the brakes are released, the
vehicle can be moved freely
(pushed or towed).
To avoid damage to the trans-
mission, never shift into
positionN while driving.
If the ESP
® is deactivated or
malfunctioning:
Shift into positionN only if the
vehicle is in danger of skidding,
e.g. on icy roads.
ê
Drive
The transmission shifts
automatically. All forward gears
are available.
!Coasting the vehicle, or driving for any
other reason in positionN can result in
transmission damage that is not cov-
ered by the Mercedes-Benz Limited
Warranty.
Warning!
G
Getting out of your vehicle without shifting
into positionP is dangerous. Also,
positionP alone is not intended to or capa-
ble of preventing your vehicle from moving,
possibly hitting people or objects.
Always set the parking brake in addition to
shifting to positionP (
page 52).
When parked on an incline, turn the front
wheels towards the road curb.
Do not park this vehicle in areas where com-
bustible materials such as grass, hay or
leaves can come into contact with the hot
exhaust system, as these materials could be
ignited and cause a vehicle fire.

187 Controls in detail
Automatic transmission
Gear ranges
With the automatic transmission in drive
positionD, you can limit the transmis-
sion’s gear range by pressing the inside of
one of the steering wheel gearshift but-
tons, and reverse the gear range limit by
pressing the outside of one of the steering
wheel gearshift buttons. The steering
wheel gearshift buttons are located on the
back of the steering wheel (
page 189).
The selected gear range appears in the
multifunction display.
If you press on the accelerator when the
engine has reached its rpm limit, the trans-
mission will upshift beyond any gear range
limit selected.
Warning!
G
When leaving the vehicle, always remove the
SmartKey or SmartKey with KEYLESS-GO*
from the starter switch, take it with you, and
lock the vehicle. Do not leave children unat-
tended in the vehicle, or with access to an
unlocked vehicle. Children could shift the
transmission out of positionP, which could
result in an accident and/or serious person-
al injury.
Effect
ê
The transmission shifts through
all seven forward gears.
ï
The transmission shifts through
sixth gear only.
î
The transmission shifts through
fifth gear only.
é
The transmission shifts through
fourth gear only.
è
The transmission shifts through
third gear only.
With this selection you can use
the braking effect of the engine.

188 Controls in detailAutomatic transmission
Steering wheel gearshift control
With drive positionD selected, you can use
the steering wheel gearshift control but-
tons to manually shift the gears. When
doing so, you are also limiting or extending
the gear range.
Effect
ç
The transmission shifts through
second gear only.
Allows the use of engine’s
braking power when driving:

on steep downgrades


in mountainous regions


under extreme operating
conditions
æ
The transmission operates in
first gear only.
For maximum use of engine’s
braking effect on very steep or
lengthy downgrades.
iTo avoid overrevving the engine when
downshifting with steering wheel
gearshift buttons, the transmission will
not shift to a lower gear if the engine’s
max. speed would be exceeded.
!Allow engine to warm up under low
load use. Do not place full load on the
engine until the operating temperature
has been reached.
Shift into reverse gearR or park
positionP only when the vehicle is
stopped.
Avoid spinning of a drive wheel for an
extended period when driving off on
slippery road surfaces. This may cause
serious damage to the drivetrain which
is not covered by the Mercedes-Benz
Limited Warranty.

189 Controls in detail
Automatic transmission
The steering wheel gearshift buttons are
located to the left and right of the steering
wheel.
1Button, inside: downshift
2Button, outside: upshiftDownshifting

Briefly press the inside of one of the
buttons1 on the steering wheel.
The transmission will shift to the next
lower gear as permitted by the shift
program. This action simultaneously limits
the gear range of the transmission
(
page 187).Upshifting

Briefly press the outside of one of the
buttons2 on the steering wheel.
The transmission will shift to the next
higher gear as permitted by the shift
program. This action simultaneously
extends the gear range of the transmission
(
page 187).
iYou cannot shift with the steering
wheel gearshift buttons when the
transmission is in positionP,N orR.
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.

190 Controls in detailAutomatic transmissionShifting into optimal gear range
Press and hold the inside of one of the
buttons1 on the steering wheel
(page 189).
The transmission will automatically select
the gear range suited for optimal
acceleration and deceleration. This will
involve shifting down one or more gears.
Canceling gear range limit
Press and hold the outside of one of the
buttons2 on the steering wheel
(page 189) until
D reappears in the
multifunction display.
The transmission will shift from the current
gear range directly to gear rangeD.
Driving tips
Accelerator position
Your driving style influences the
transmission’s shifting behavior:
Less throttle Earlier upshifting
More throttle Later upshifting
Kickdown
Use kickdown when you want maximum
acceleration.
Press the accelerator past the point of
resistance.
The transmission shifts into a lower
gear.

Ease on the accelerator when you have
reached the desired speed.
The transmission shifts up again.Stopping
When you stop briefly, e.g. at traffic lights:

Leave the transmission in gear.

Hold the vehicle with the brake.
When you stop longer with the engine
idling and/or on a hill:

Set the parking brake.

Shift into park positionP.
Maneuvering
When you maneuver in tight areas,
e.g. when pulling into a parking space:

Control the vehicle speed by gradually
releasing the brakes.

Accelerate gently.

Never abruptly step on the accelerator.

191 Controls in detail
Automatic transmission
Rocking the vehicle
Rocking the vehicle by shifting betweenD
andR can help free a vehicle stuck in mud
or snow. The engine control system of this
vehicle electronically limits shifting
betweenD andR to very low speeds
(i.e. approx. 2 mph). To shift betweenD
andR, move the gear selector lever past
the resistance point up or down.
Hill start assist system
On uphill grades, the hill start assist
system maintains the pressure in the
brake system for approximately
one second after you have released the
brake pedal. Therefore, you can start off
smoothly without the vehicle moving im-
mediately after releasing the brake pedal.
The hill start assist system is inactive

on driving downhill


in positionN


with the parking brake setWorking on the vehicle
Towing a trailer
If you tow a trailer, note the following
points:

Manually shift to a lower gear range
(page 187) if the transmission hunts
between gears on inclines.
A lower gear range and reduction of
speed reduces the chance to overload
or overheat the engine.
For more information on trailer towing, see
the “Operation” section (
page 314).
Warning!
G
The hill start assist system is not designed
to function as a parking brake and does not
prevent the vehicle from moving when
parked on an incline.
Always set the parking brake in addition to
shifting to park position
P.
iIf the ESP
® has switched off due to a
malfunction, the hill start assist system
is also unavailable.
Warning!
G
When working on the vehicle, set the
parking brake and shift to park positionP.
Otherwise the vehicle could roll away.