2006 MERCEDES-BENZ CL500 battery

94 Controls in detailLocking and unlockingLoss of SmartKey or mechanical key
If you lose a SmartKey or mechanical key,
you should do the following:
Have the SmartKey deactivated by an
authorized Mercedes-Benz Center.

Report the loss of the SmartKey or the
mechanical key immediately to your
car insurance company.

If necessary, have the mechanical lock
replaced.
Your authorized Mercedes-Benz Center
will be glad to supply you with a replace-
ment.
SmartKey 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 locking tabs for the mechanical key
portion of the two SmartKeys with
KEYLESS-GO are a different color to help
distinguish each SmartKey with
KEYLESS-GO unit.
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.
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
2Š Opening button for trunk
3Locking tab for mechanical key
4ΠUnlock button
5Battery check lamp
6Â Panic button (
page 79)
iWhen the passenger outside door han-
dle is grasped, the vehicle is centrally
unlocked.

98 Controls in detailLocking and unlockingSelective 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 6 seconds un-
til battery check lamp5 flashes twice.
The SmartKey with KEYLESS-GO will
then function as follows:
Unlocking driver’s door and fuel filler
flap

Grasp the driver’s outside door handle.
All turn signal lamps flash once. The
locking knob in the driver’s door moves
up. The anti-theft alarm system is dis-
armed.Global unlocking

Grasp the outside door handle on the
passenger side.
All turn signal lamps flash once. The
locking knobs in the doors move up.
The anti-theft alarm system is dis-
armed.
Global locking

Press lock button on an outside door
handle (
page 60).
With the trunk and all doors closed, all
turn signal lamps flash 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‹
simultaneously for about 6 seconds un-
til battery check lamp5 flashes twice.
iYou can also lock the vehicle using the
lock button on the trunk lid (
page 99)
or, vehicles with trunk opening/closing
system*, KEYLESS-GO locking/closing
switch (
page 107).
!If you can no longer lock or unlock the
vehicle with the SmartKey with
KEYLESS-GO, then the battery of the
SmartKey with KEYLESS-GO is dis-
charged, the SmartKey with
KEYLESS-GO is malfunctioning or the
vehicle battery is drained.

Check the battery of the SmartKey
with KEYLESS-GO and replace them
if necessary (
page 377).


Use the mechanical key to unlock
the driver’s door (
page 372) and
the trunk (
page 373).


Use the mechanical key to lock the
driver’s door (
page 372).

99 Controls in detail
Locking and unlocking
Checking the battery
Press button‹ orŒ.
Battery check lamp5 comes on brief-
ly to indicate that the SmartKey with
KEYLESS-GO battery is in order.Global locking using the lock button on
the trunk lid
1Lock button

Press lock button1 on the trunk lid.
All turn signal lamps flash three times.
The locking knobs in the doors move
down. The anti-theft alarm system is
armed.


Have the vehicle battery and the
battery connections checked
(page 391).
If the SmartKey with KEYLESS-GO is
malfunctioning, contact an authorized
Mercedes-Benz Center.
!If battery check lamp5 does not
come on briefly during check, the
SmartKey with KEYLESS-GO battery is
discharged.
Replace the battery (
page 377).
You can obtain the required battery at
any authorized Mercedes-Benz Center.
iIf the battery is checked within signal
range of the vehicle, pressing the
button‹ orŒ will lock or unlock
the vehicle accordingly.iTo prevent a possible inadvertent lock-
out, the trunk will open automatically if
a SmartKey with KEYLESS-GO is recog-
nized inside the vehicle or in the trunk.
iYou can also lock the vehicle using the
lock button on an outside door handle
(page 60) or, vehicles with trunk
opening/closing system*,
KEYLESS-GO locking/closing switch
(page 107).

109 Controls in detail
Locking and unlocking
Trunk emergency release
With the emergency release button, the
trunk can be opened from inside the trunk.
The emergency release button is located
on the inside of the trunk lid.
1Emergency release button
Briefly press emergency release
button1.
The trunk opens.Illumination of the emergency release but-
ton:


The button will flash for 30 minutes af-
ter opening the trunk.


The button will flash for 60 minutes af-
ter closing the trunk.iThe emergency release button unlocks
and opens the trunk while the vehicle is
standing still or in motion.iThe emergency release button does
not open the trunk if the vehicle battery
is discharged or disconnected.
iIf the vehicle has previously been
locked using the SmartKey or
KEYLESS-GO*, opening the trunk from
the inside using the emergency release
button will trigger the anti-theft alarm
system.
To cancel the alarm, do one of the fol-
lowing:

Insert the SmartKey in the starter
switch.


Press button Œ or ‹ on the
SmartKey.
In vehicles with KEYLESS-GO*:


Grasp an outside door handle.
The SmartKey with KEYLESS-GO
must be within 3 ft. (1 m) of the ve-
hicle.


Press the KEYLESS-GO* start/stop
button (
page 35).
The SmartKey with KEYLESS-GO
must be inside the vehicle.

131 Controls in detail
Lighting
Interior lighting
The controls are located in the overhead
control panel.
1Left reading lamp on/off
2Rear interior lamps on/off
3Right reading lamp on/off
4Rocker switch for automatic
control on/offAutomatic control
Activating

Press rocker switch 4 to the center
position.
The interior lighting switches on in
darkness when you:

unlock the vehicle


remove the SmartKey from the
starter switch


open a door


open the trunk
The interior lighting switches off automati-
cally following an adjustable time delay.
For more information, see “Interior illumi-
nation delayed switch-off” (
page 161).Deactivating

Press the ñ symbol on rocker
switch 4.
The interior lighting remains switched
off in darkness, even when you:

unlock the vehicle


remove the SmartKey from the
starter switch


open a door


open the trunk
iLeaving an interior light switch in the
ON position for extended periods of
time with the engine turned off could
result in a discharged battery.
iIf the door remains open, the interior
lighting switches off automatically after
approximately 5 minutes.

193 Controls in detail
Automatic climate control
Rear window defroster
The rear window defroster uses a large
amount of power. To keep battery drain to
a minimum, switch off the defroster as
soon as the rear window is clear. The de-
froster is automatically deactivated after
approximately 6 to 17 minutes of opera-
tion depending on the outside tempera-
ture.
Activating
Press buttonF (
page 185).
The indicator lamp on the button
comes on.
Deactivating

Press buttonF (
page 185) again.
The indicator lamp on the button goes
out.
Air conditioning
The air conditioning is operational while
the engine is running and cools the interior
air to the temperature set by the operator.
Deactivating
It is possible to deactivate the air condi-
tioning (cooling) function of the automatic
climate control system. The air in the vehi-
cle will then no longer be cooled or dehu-
midified.
Press button± (
page 185).
The indicator lamp on the button±
comes on.
Warning!
G
Any accumulation of snow and ice should be
removed from the rear window before driv-
ing. Visibility could otherwise be impaired,
endangering you and others.!If the rear window defroster switches
off too soon and the indicator lamp
starts flashing, this means that too
many electrical consumers are operat-
ing simultaneously and there is insuffi-
cient voltage in the battery. The system
responds automatically by deactivating
the rear window defroster.
As soon as the battery has sufficient
voltage, the rear window defroster au-
tomatically turns itself back on.
iCondensation may drip out from under-
neath the vehicle. This is normal and
not an indication of a malfunction.

194 Controls in detailAutomatic climate controlActivating
Moist air can fog up the windows. You can
dehumidify the air with the air condition-
ing.
Press± again (
page 185).
The indicator lamp on the button±
goes out.
The air conditioning uses the refrigerant
R134a. This refrigerant is free of CFCs
which are harmful to the ozone layer.
Residual heat and ventilation
With the engine switched off, it is possible
to continue to heat or ventilate the interior
for up to 30 minutes. This feature makes
use of the residual heat produced by the
engine.
Activating
Turn the SmartKey in the starter switch
to position1 or0, or remove it from
the starter switch.

Press buttonT (
page 185).
The indicator lamp on buttonT
comes on.Deactivating

Press buttonT (
page 185).
The indicator lamp on buttonT
goes out.
The residual heat is automatically turned
off:


when the ignition is switched on


after about 30 minutes


if the battery voltage drops
!If button± on the automatic cli-
mate control panel starts to flash, this
indicates that the air conditioning is
losing refrigerant. The compressor has
turned itself off. The air conditioning
cannot be turned on again.
Have the air conditioning checked at
the nearest authorized Mercedes-Benz
Center.
iHow long the system will provide heat-
ing depends on the coolant tempera-
ture and the temperature set by the
operator. The blower will run at speed
setting 1 regardless of the air distribu-
tion control setting.

199 Controls in detail
Power windows
Fully closing the power windows
(Express-close)
Press switch1 to 2 at the
symbolj past the resistance point
and release.
The corresponding window closes com-
pletely.
Stopping power windows during
Express-operation

Briefly press the respective window
switch again.
Synchronizing the power windows
The windows must be synchronized each
time

after the battery has been disconnect-
ed


if the windows cannot be fully opened
(Express-open) or closed
(Express-close)
Each window must be synchronized.

Close all doors.

Switch on the ignition (
page 34).

Press and hold switches1 to 4 at
the symbolj until the windows are
completely closed.

Hold on to switches1 to 4 for ap-
proximately 1 second.
The windows are synchronized.
Warning!
G
Driver’s door only:
If within 5 seconds you again press the
switch past the resistance point and re-
lease, the automatic reversal will not func-
tion.
!If the upward movement of the door
window is blocked during the closing
procedure, the door window will stop
and open slightly. Remove the obstruc-
tion, press the respective door window
switch at the symbolj again past
the resistance point and release. If the
door window still does not close when
there is no obstruction, press and hold
the respective door window switch at
the symbolj. The door window will
then close without the obstruction sen-
sor function.