2008 MERCEDES-BENZ CL-Class fuel

286 Control systemsInstrument cluster control systemTrip menu
In the “Trip” menu, you can show an addi-
tional display for the speedometer and call
up or reset your vehicle’s statistical data.
Standard display
In the standard display, the trip odometer
and main odometer are shown in the
multifunction display.
Press ( or & to select the “Trip”
menu.
1Main odometer
2Trip odometerFuel consumption statistics since start

Press ( or & to select the “Trip”
menu.

Press % to select “From Start”.
1Distance driven since start
2Time elapsed since start
3Average speed since start
4Average fuel consumption since startFuel consumption statistics since last
reset

Press ( or & to select the “Trip”
menu.

Press % or $ to select “Since
Reset”.
1Distance driven since last reset
2Time elapsed since last reset
3Average fuel consumption since last re-
set
4Average speed since last reset
i
The menu overview can be found on
(
page 284).
i
All values that are based on the last start are
reset when you turn off the vehicle’s engine for
more than four hours (
page 415).
i
If you turn the SmartKey to position1 or2
again during this time, the values will not be re-
set. After 9 999 hours or 99 999 miles (kilome-
ters), the fuel consumption statistics after start
are automatically reset.
i
After 9 999 hours or 99 999 miles (kilome-
ters), the fuel consumption statistics since last
reset are automatically reset.

287 Control systems
Instrument cluster control system
Resetting fuel consumption statistics
Press ( or & to select the “Trip”
menu.

Press % or $ to select the func-
tion you wish to reset.

Press #.
Illustration: Reset trip odometer
Press % to select “Yes” and confirm
with #.Distance to empty

Press ( or & to select the “Trip”
menu.

Press % or $ to select “Range”.
The calculated remaining driving range
based on the current fuel tank level ap-
pears in the multifunction display.
Digital speedometer

Press ( or & to select the “Trip”
menu.

Press % or $ to select the digital
speedometer.
1Digital speedometer
Navi menu
The display in the “Navi” menu depends on
whether route guidance is active or not.
Press ( or & to select the “Navi”
menu.
Route guidance not active
The multifunction display shows the direc-
tion of travel and the name of the street
you are currently driving on, if known by
the navigation system.
1Direction of travel
2Street you are currently driving on
i
If only very little fuel is left in the tank, a fuel
pump is shown instead of the range.
i
The menu overview can be found on
(
page 284).

352 Controls in detailLocking and unlockingSmartKey
Your vehicle comes supplied with two
SmartKeys, each with remote control and
a removable mechanical key.
The SmartKey provides an extended oper-
ating range. To prevent theft, however, it is
advisable to only unlock the vehicle when
you are in close proximity to it.
The SmartKey centrally locks and unlocks,
when set to factory settings (
page 354):


the doors


the trunk


the fuel filler flap
SmartKey with remote control1‹ Lock button
2ŠOpening button for trunk
(
page 500)
3Mechanical key locking tab
4ŒUnlock button
5Battery check lamp
6ÂPanic button (
page 64)
!
To prevent possible malfunction, avoid ex-
posing the SmartKey to high levels of electro-
magnetic radiation.
Warning!
G
When leaving the vehicle, always remove the
SmartKey from the starter switch, take it
with you, and lock the vehicle. Do not leave
children unattended 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.Warning!
G
To prevent possible personal injury, always
keep hands and fingers away from the door
or trunk lid opening when closing a door or
the trunk. Be especially careful when small
children are around.
Before closing doors, make sure there is no
possibility of someone getting caught in a
door during closing.

355 Controls in detail
Locking and unlocking
Selective setting
If you frequently travel alone, you may wish
to reprogram the SmartKey so that press-
ing buttonŒ only unlocks the driver’s
door and the fuel filler flap.
Press and hold buttonsŒ and‹
simultaneously for about 5 seconds un-
til battery check lamp5 (
page 352)
flashes twice.
The SmartKey will then function as fol-
lows:

Unlocking driver’s door and fuel fill-
er flap: Press buttonΠonce.

All turn signal lamps flash once.


An acoustic signal sounds once.


The locking knob in the driver’s
door moves up.


The anti-theft alarm system is dis-
armed.

Global unlocking: Press buttonŒ
twice.

All turn signal lamps flash once.


An acoustic signal sounds once.


The locking knobs in the doors
move up.


The anti-theft alarm system is dis-
armed.

Global locking: Press button‹.
With the trunk and both doors closed:

All turn signal lamps flash three
times.


An acoustic signal sounds three
times.


The locking knobs in the doors
move down.


The anti-theft alarm system is
armed.

Restoring to factory setting: Press
and hold buttonsŒ and‹ si-
multaneously for about 5 seconds until
battery check lamp5 (
page 352)
flashes twice.

356 Controls in detailLocking and unlockingSmartKey with KEYLESS-GO*
Vehicles equipped with KEYLESS-GO come
with two SmartKeys with KEYLESS-GO,
each with remote control and a removable
mechanical key.
The KEYLESS-GO function is integrated
into the SmartKey. On these vehicles, the
validity of the SmartKey with KEYLESS-GO
is checked every time you grasp an outside
door handle.
With the KEYLESS-GO function, you can
lock and unlock the vehicle without using
the remote control buttons on the
SmartKey and start the engine without in-
serting the SmartKey in the starter switch.If the SmartKey with KEYLESS-GO is valid,
your vehicle unlocks:


the doors


the trunk


the fuel filler flap
SmartKey with KEYLESS-GO1‹ Lock button
2ŠOpening button for trunk
(
page 500)
3Locking tab for mechanical key
4ΠUnlock button
5Battery check lamp
6ÂPanic button (
page 64)
!
To prevent possible malfunction, avoid ex-
posing the SmartKey with KEYLESS-GO to high
levels of electromagnetic radiation.
Warning!
G
When leaving the vehicle, always take the
SmartKey with KEYLESS-GO* with you and
lock the vehicle. Do not leave children unat-
tended in the vehicle, or with access to an
unlocked vehicle. A child’s unsupervised ac-
cess to a vehicle could result in an accident
and/or serious personal injury.
Children could start the vehicle with a valid
SmartKey with KEYLESS-GO left in the
vehicle or with the KEYLESS-GO button on
the starter switch, or could release the
electronic parking brake, thereby putting
themselves and others in danger. Switch off
the engine and take the SmartKey with
KEYLESS-GO with you even if you are only
leaving the vehicle for a short while.

360 Controls in detailLocking and unlocking
Global unlocking: Grasp an outside
door handle.

All turn signal lamps flash once.


An acoustic signal sounds once.


The locking knobs in the doors
move up.


The anti-theft alarm system is dis-
armed.
The vehicle will lock again automatically
and rearm the anti-theft alarm system
within approximately 40 seconds of un-
locking if:


neither a door nor the trunk is opened


the central locking/unlocking switch is
not activated

Global locking: Close both doors and
touch outside of door handle1. Do
not keep your hand in the door handle
recess.
With the trunk and both doors closed:

All turn signal lamps flash three
times.


An acoustic signal sounds three
times.


The locking knobs in the doors
move down.


The anti-theft alarm system is
armed.Selective setting
If you frequently travel alone, you may wish
to reprogram the SmartKey with
KEYLESS-GO so when you, grasp the driv-
er’s outside door handle only the driver’s
door and the fuel filler flap unlocks.

Press and hold buttonsŒ and‹
simultaneously for about 5 seconds un-
til battery check lamp5 (
page 356)
flashes twice.
The SmartKey with KEYLESS-GO will
then function as follows:

Unlocking driver’s door and fuel fill-
er flap: Grasp the driver’s outside door
handle.

All turn signal lamps flash once.


An acoustic signal sounds once.


The locking knob in the driver’s
door moves up.


The anti-theft alarm system is dis-
armed.
i
The vehicle could inadvertently be unlocked
if the SmartKey with KEYLESS-GO is within 3 ft
(1 m) of the vehicle and:


an outside door handle is splashed with
water, or


you attempt to clean an outside door handle.
i
You can also lock the vehicle using the
KEYLESS-GO locking/closing switch
(
page 503).

364 Controls in detailLocking and unlockingLocking and unlocking from the inside
You can lock or unlock the doors and the
trunk from the inside using the central
locking or unlocking switch. This can be
useful, for example, if you want to lock the
vehicle before starting to drive.
The central locking switch and central un-
locking switch do not lock or unlock the
fuel filler flap or the interior storage com-
partments such as the glove box.1Central unlocking switch
2Central locking switch

Locking: Press switch ‹.
If the passenger door is closed, the ve-
hicle locks.

Unlocking: Press switch Œ.
The vehicle unlocks.
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. A child’s unsupervised ac-
cess to a vehicle could result in an accident
and/or serious personal injury.
i
You can open a locked door from inside at
any time. Open door only when conditions are
safe to do so.
If the vehicle was previously centrally locked
with the SmartKey or with KEYLESS-GO*, it will
not unlock using the central unlocking switch.
If the vehicle was previously locked with the cen-
tral locking switch:


and the SmartKey or SmartKey with
KEYLESS-GO* is set to factory settings, the
complete vehicle is unlocked when a door is
opened from the inside


and the SmartKey or SmartKey with
KEYLESS-GO* is set to selective settings,
only the door opened from the inside is un-
locked

408 Controls in detailDriving and parking
Do not depress accelerator.

Press KEYLESS-GO start/stop button
once.
The engine starts if the SmartKey with
KEYLESS-GO is in the vehicle.
For information on turning off the engine
with KEYLESS-GO, see “Turning off the en-
gine” (
page 415).Starting difficulties
The engine does not start. You can hear
the starter.
There could be a malfunction


in the engine electronics, or


in the fuel supply system
Carry out the following steps:

If you are starting the engine with the
SmartKey: Turn SmartKey in starter
switch to position0 and repeat starting
procedure.

If you are starting the engine with
KEYLESS-GO*: Close any doors that
may be open to allow for better detec-
tion of the SmartKey with
KEYLESS-GO*.
or

Remove the KEYLESS-GO* start/stop
button from starter switch.

Start the engine with the SmartKey as
radio signals from another source may
be interfering with the SmartKey with
KEYLESS-GO*.

Repeat the starting procedure
(page 406).
If the engine does not start after several
starting attempts:

Call Roadside Assistance.

Contact an authorized Mercedes-Benz
Center or call Roadside Assistance.
i
You can also start the engine with the auto-
matic transmission set to neutral positionN.
i
If you wish to start the vehicle with the
SmartKey instead of the KEYLESS-GO feature,
remove the KEYLESS-GO start/stop button from
the starter switch and proceed as described in
“Starting with the SmartKey” (
page 407).
!
Remember that extended starting attempts
can drain the battery.