Smart key MERCEDES-BENZ R350 2008 W251 Repair Manual

186 Controls in detail
Control system
Fuel consumption statistics since start
Press buttonÿ orè repeatedly
until the message
From Start appears
in the multifunction display.
1Distance driven since start
2Time elapsed since start
3Average speed since start
4Average fuel consumption since startFuel consumption statistics since last
resetPress buttonÿ orè repeatedly
until the message
From Start appears
in the multifunction display.
Press buttonj ork repeatedly
until the message
From Reset appears
in the multifunction display.
1Distance driven since last reset
2Time elapsed since last reset
3Average speed since last reset
4Average fuel consumption since last
resetResetting fuel consumption statistics
Press buttonÿ orè repeatedly
until the message
From Start appears
in the multifunction display.
Press buttonj ork repeatedly
until the fuel consumption statistics
which you want to reset appear in the
multifunction display.
Press and hold the reset button in the
instrument cluster (
page 154) until
the respective values are reset to
0.
iAll statistics stored since the last engine
start will be reset approximately 4 hours after
the SmartKey in the starter switch is turned to
position0 or removed from the starter switch.
Resetting will not occur if you turn the SmartKey
back to position1 or2 within this time period.
iThe fuel consumption statistics reset auto-
matically to
0 when either of the following values
is exceeded:

distance covered: 100 000 miles

time elapsed: 10 000 hours

194 Controls in detail
Automatic transmission
Transmission positions
The current transmission position appears
in the multifunction display.
1Current transmission position
!If the current transmission position does not
appear in the multifunction display due to a
malfunction, for example, make sure that the
automatic transmission is in the desired position
by carefully driving off with the transmission in
drive positionD and program modeS
(
page 200) selected. Do not limit the gear
range.
Effect
ìPark 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.
If the vehicle’s electrical system
is malfunctioning, the automatic
transmission could remain
locked in park positionP.
Have the vehicle checked as
soon as possible by an autho-
rized Mercedes-Benz Light
Truck Center.
!SmartKey:
If you turn off the engine using the SmartKey and

remove the SmartKey from the starter
switch
or

open a front door
the transmission will shift to park positionP
automatically.
Keep in mind that turning off the engine with the
SmartKey alone only will automatically shift the
transmission to neutral positionN.
!KEYLESS-GO*:
If you turn off the engine using the KEYLESS-GO
start/stop button and open a front door, the
transmission will shift to park positionP
automatically.
Keep in mind that turning off the engine using
the KEYLESS-GO start/stop button alone only
will automatically shift the transmission to
neutral positionN.

195 Controls in detail
Automatic transmission
If you want the gear position to remain in
neutral positionN, e.g. when taking the
vehicle through an automatic conveyor
type car wash, observe the following
instructions.
iMake it a practice to always shift into park
positionP before turning off the engine and

remove the SmartKey from the starter
switch
or

open a front door
or when using KEYLESS-GO*, before turning off
the engine with the start/stop button and open-
ing a front door.
Effect
íReverse gear
Shift into reverse gearR only
when the vehicle is stopped.
ëNeutral
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 neutral
positionN while driving.
If the ESP
® is deactivated or
malfunctioning:
Shift into neutral positionN only
if the vehicle is in danger of
skidding, e.g. on icy roads.
!If you turn off the engine using the
SmartKey or the KEYLESS-GO* start/stop
button, the transmission will shift to neutral
positionN automatically.
Warning!G
When leaving the SmartKey or SmartKey
with KEYLESS-GO* in the starter switch, do
not leave children unattended in the vehicle.
It is possible for children to switch on the
ignition which could result in unsupervised
use of vehicle equipment.
A child’s unsupervised access to a vehicle
could result in an accident and/or serious
personal injury.

196 Controls in detail
Automatic transmission
Vehicles with SmartKey:
With the vehicle at a standstill and the
ignition switched on shift the
automatic transmission to neutral
positionN.
If engaged, release the parking brake
(
page 56).
Switch off the ignition and leave the
SmartKey in the starter switch.
Vehicles with KEYLESS-GO*:
With the vehicle at a standstill, depress
the brake pedal and keep it pressed.
With the ignition switched on shift the
automatic transmission to park
positionP.
Release the brake pedal.
Remove the KEYLESS-GO* start/stop
button from the starter switch
(
page 41).
Insert the SmartKey with
KEYLESS-GO* into the starter switch.
Switch on the ignition.
Depress the brake pedal.
Shift the automatic transmission to
neutral positionN.
Release the brake pedal.
If engaged, release the parking brake
(
page 56).
Switch off the ignition and leave the
SmartKey with KEYLESS-GO* in the
starter switch.
!Observe instructions

when taking the vehicle through an
automatic conveyor type car wash
(
page 405)

when towing the vehicle (page 513)
!Coasting the vehicle, or driving for any other
reason in neutral positionN can result in trans-
mission damage that is not covered by the
Mercedes-Benz Limited Warranty.
Effect
êDrive
The transmission shifts
automatically. All forward gears
are available.
Warning!G
Getting out of your vehicle without shifting
into park positionP is dangerous. Also, park
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 park positionP (
page 65).
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.

197 Controls in detail
Automatic transmission
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.
Depending on the engine speed 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 for a longer period of time
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.
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
automatic transmission out of park
positionP, which could result in an accident
and/or serious personal injury.

241 Controls in detail
Power windows
Power windows
The door windows and the hinged quarter
windows* are opened and closed electri-
cally. The switches for all door windows
and the hinged quarter windows* are
located on the driver’s door control panel.
The switches for the respective door win-
dows are located on the front passenger
door and the rear doors. The hinged
quarter windows* can be operated from
the driver’s seat only.
Switch on the ignition (page 39).
Warning!G
When closing the windows, make sure that
there is no danger of anyone being harmed
by the closing procedure.
Activate the override switch (
page 97)
when children are riding in the back seats of
the vehicle. The children could otherwise in-
jure themselves, e.g. by becoming trapped
in the window opening.
The closing of a door window can be imme-
diately halted by releasing the switch or, if
switch was pulled past the resistance point
and released, by either pressing or pulling
the respective switch.
If a door window encounters an obstruction
that blocks its path in a circumstance where
you pulled the switch past the resistance
point and released it to close the door win-
dow, the automatic reversal function will
stop the door window and open it slightly.
If a door window encounters an obstruction
that blocks its path in a circumstance where
you are closing a door window by pulling and
holding the switch, or by pressing and hold-
ing button‹on the SmartKey, by press-
ing and holding the lock button (vehicles
with KEYLESS-GO*) on the door handle, the
automatic reversal function will not operate.
When leaving the vehicle, always remove the
SmartKey or SmartKey with KEYLESS-GO*
from starter switch, take it with you, and
lock the vehicle. Do not leave childrenunattended in the vehicle, or with access to
an unlocked vehicle. A child’s unsupervised
access to a vehicle could result in an
accident and/or serious personal injury.
iYou can also open or close the windows
using the SmartKey, see “Summer opening
feature” (
page 244) and “Convenience
closing feature” (
page 245).
Depending on the current position, the power
windows may also open or close when the air
recirculation button:on the control panel
of the climate control (
page 210) or automatic
climate control* (
page 224) is pressed and
held.
iAfter switching off the ignition (page 39)
or removing the SmartKey from the starter
switch, the windows can be operated

until you open the driver’s or front passenger
door

for at least 5 minutes if nor door was opened

244 Controls in detail
Power windows
Synchronizing the door windows
The door windows must be synchronized

after the battery was disconnected

if the door windows cannot be fully
opened (Express-open) or closed
(Express-close)
Close all doors.
Switch on the ignition (page 39).
Pull and hold switch1, 2, 3, or4
(
page 242).
Once a door window is closed
completely, hold the respective switch
for approximately 3 seconds.
The door window is synchronized.
Summer opening feature
If the weather is warm, you can ventilate
the vehicle before driving off by simulta-
neously

opening the door windows

opening the hinged quarter windows*

opening the tilt/sliding sunroof* (or
the tilt/sliding panel*)

switching on the seat ventilation* for
the driver’s seat
Aim transmitter eye of the SmartKey or
SmartKey with KEYLESS-GO* at the
driver’s outside door handle.
The SmartKey or SmartKey with
KEYLESS-GO* must be in close proxim-
ity to the driver’s outside door handle.
Vehicles without tilt/sliding panel
Press and hold buttonŒon the
SmartKey or SmartKey with
KEYLESS-GO* until the windows and
the tilt/sliding sunroof* have reached
the desired position.
Release buttonŒon the SmartKey
or SmartKey with KEYLESS-GO* to
interrupt the opening procedure.
iEach door window must be synchronized
separately.

245 Controls in detail
Power windows
Vehicles with tilt/sliding panel*
If roller sunblinds are closed:
Press and hold buttonŒon the
SmartKey or SmartKey with
KEYLESS-GO*.
The windows and roller sunblinds begin
to open after approximately 1 second.
Release buttonŒon the SmartKey
or SmartKey with KEYLESS-GO* to
interrupt the opening procedure.
With the windows and roller sunblinds
fully opened, press and hold
buttonŒon the SmartKey or
SmartKey with KEYLESS-GO* once
more.
The tilt/sliding panel opens.
Release buttonŒon the SmartKey
or SmartKey with KEYLESS-GO* to
interrupt the opening procedure.If roller sunblinds are open:
Press and hold buttonŒon the
SmartKey or SmartKey with
KEYLESS-GO*.
The windows and the tilt/sliding panel
begin to open after approximately
1 second.
Release buttonŒon the SmartKey
or SmartKey with KEYLESS-GO* to
interrupt the opening procedure.
Convenience closing feature
When locking the vehicle, you can simulta-
neously close

the door windows

the hinged quarter windows*

the tilt/sliding sunroof* (or the
tilt/sliding panel*)
Warning!G
When closing the windows and the
tilt/sliding sunroof* (or tilt/sliding panel*),
make sure that there is no danger of anyone
being harmed by the closing procedure.
If potential danger exists, proceed as
follows:

Release button‹to stop the closing
procedure. To open, press and hold
button Œ. To continue the closing
procedure after making sure that there
is no danger of anyone being harmed by
the closing procedure, press and hold
button ‹.


246 Controls in detail
Power windows
Vehicles without tilt/sliding panel
Aim transmitter eye of the SmartKey or
SmartKey with KEYLESS-GO* at the
driver’s outside door handle
(
page 244).
The SmartKey or SmartKey with
KEYLESS-GO* must be in close
proximity to the driver’s door handle.
Press and hold button‹on the
SmartKey or SmartKey with
KEYLESS-GO* until the windows and
the tilt/sliding sunroof* are completely
closed.
Release button‹on the SmartKey
or SmartKey with KEYLESS-GO* to
interrupt the closing procedure.
Vehicles with KEYLESS-GO*:
Press and hold the lock button on an
outside door handle (
page 68) until
the windows and the tilt/sliding
sunroof* are completely closed.
Release the lock button on the outside
door handle to interrupt the closing
procedure.Vehicles with tilt/sliding panel*
If tilt/sliding panel is closed:
Aim transmitter eye of the SmartKey or
SmartKey with KEYLESS-GO* at the
driver’s outside door handle
(
page 244).
The SmartKey or SmartKey with
KEYLESS-GO* must be in close
proximity to the driver’s door handle.
Press and hold button‹on the
SmartKey or SmartKey with
KEYLESS-GO* until the windows and
the roller sunblinds are completely
closed.
Release button‹on the SmartKey
or SmartKey with KEYLESS-GO* to
interrupt the closing procedure.
Vehicles with KEYLESS-GO*:

Release the lock button (page 68) on
the driver’s outside door handle to stop
the closing procedure.

Immediately pull on the same outside
door handle and hold firmly. The
windows and the tilt/sliding sunroof*
(or tilt/sliding panel*) will open for as
long as the door handle is held but the
door is not opened.


247 Controls in detail
Power windows
Vehicles with KEYLESS-GO*:
Press and hold the lock button on an
outside door handle (
page 68) until
the windows and the roller sunblinds
are completely closed.
Release the lock button on the outside
door handle to interrupt the closing
procedure.
If tilt/sliding panel is open:
Aim transmitter eye of the SmartKey or
SmartKey with KEYLESS-GO* at the
driver’s outside door handle
(
page 244).
The SmartKey or SmartKey with
KEYLESS-GO* must be in close
proximity to the driver’s door handle.
Press and hold button‹on the
SmartKey or SmartKey with
KEYLESS-GO* until the windows and
the tilt/sliding panel* are completely
closed.
Release button‹on the SmartKey
or SmartKey with KEYLESS-GO* to
interrupt the closing procedure.
With the windows and the tilt/sliding
panel completely closed, press and
hold button‹on the SmartKey or
SmartKey with KEYLESS-GO* once
more.
The roller sunblinds close.
Vehicles with KEYLESS-GO*:
Press and hold the lock button on an
outside door handle (
page 68) until
the windows and the tilt/sliding panel*
are completely closed.
Release the lock button on the outside
door handle to interrupt the closing
procedure.
With the windows and the tilt/sliding
panel completely closed, press and
hold the lock button on an outside door
handle (
page 68) once more.
The roller sunblinds close.