2004 MERCEDES-BENZ CL600 battery

91 Controls in detail
Locking and unlocking
Checking the batteries
Press button‹ orŒ.
Battery check lamp5 comes on brief-
ly to indicate that the SmartKey batter-
ies are in order.Loss 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 are a different color to help dis-
tinguish each SmartKey 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 a door
handle.
If the SmartKey with KEYLESS-GO is valid,
your vehicle unlocks:

the doors


the trunk lid


the fuel filler flap
!If battery check lamp5 does not
comes on briefly during check, then the
SmartKey batteries are discharged.
Replace the batteries (
page 332).
You can obtain the required batteries
at any authorized Mercedes-Benz Cen-
ter.
iIf the batteries are ckecked within sig-
nal range of the vehicle, pressing the
button‹ orŒ will lock or unlock
the vehicle accordingly.

92 Controls in detailLocking and unlockingSmartKey with KEYLESS-GO1‹ Lock button
2Š Unlock button for trunk lid
3Locking tab for mechanical key
4ΠUnlock button
5Battery check lamp
6Â Panic button (
page 76)
For more information on using the
SmartKey buttons, see “SmartKey”
(
page 88).Important notes on using KEYLESS-GO


You can also use the SmartKey with
KEYLESS-GO like a normal
SmartKey (
page 88).


You can combine KEYLESS-GO func-
tions with normal SmartKey functions
(e.g. unlocking with KEYLESS-GO and
locking with the remote control).


Always carry the SmartKey with
KEYLESS-GO with you.


Never store the SmartKey with
KEYLESS-GO together with:

Electronic items such as a cellular
phone or another SmartKey with
KEYLESS-GO


Metallic objects such as coins or
metal foil
Warning!
G
When leaving the vehicle, always remove the
SmartKey from the starter switch, take the
SmartKey with KEYLESS-GO* with you and
lock your vehicle. Do not leave children un-
attended in the vehicle, or with access to an
unlocked vehicle. Unsupervised use of vehi-
cle equipment may cause an accident
and/or serious personal injury.!To prevent possible malfunction, avoid
exposing the SmartKey with
KEYLESS-GO to high levels of electro-
magnetic radiation. iIf the vehicle has been parked for a
longer period of time, you must pull the
door handle in order to activate the
KEYLESS-GO function.
You can also close the power windows
(page 188) and sliding/pop up roof
(page 193) using the SmartKey with
KEYLESS-GO.

94 Controls in detailLocking and unlockingFactory setting
Global unlocking
Grasp the door handle.
The vehicle will lock again automatically
within approximately 40 seconds of un-
locking if neither door nor trunk is opened.
Global locking

Press lock button at door handle
(page 57) or trunk (
page 95).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 door handle only the driver’s door and
the fuel filler flap unlocks.

Press and hold buttonsŒ and‹
simultaneously for about six seconds
until battery check lamp5 flashes
twice.
The SmartKey with KEYLESS-GO will
then function as follows:
Unlocking the driver’s door
Grasp the driver’s door handle.
Global unlocking

Grasp the door handle on the pas-
senger side.
Global locking

Press lock button at door handle or
trunk.Restoring to factory setting

Press and hold buttonsŒ and‹
simultaneously for about six seconds
until battery check lamp5 flashes
twice.
iThe vehicle could be inadvertently be
unlock if the SmartKey with
KEYLESS-GO is within 3 ft. (1 m) of the
vehicle and

the door handle is splashed with
water, or


you attempt to clean the door
handle.
!If you cannot lock or unlock the vehicle
with the SmartKey with KEYLESS-GO,
then the battery of the SmartKey is dis-
charged, the SmartKey is malfunction-
ing or the vehicle battery is drained.

Check the battery of the SmartKey
with KEYLESS-GO and replace them
if necessary (
page 332).


Use the mechanical key to unlock
the doors (
page 331) and the
trunk lid (
page 332) as required.


Have the vehicle battery and the
battery connections checked.


Use the mechanical key to lock the
doors (
page 331) and the trunk
lid (if applicable) (
page 332) as
required.

95 Controls in detail
Locking and unlocking
Locking the vehicle
1Vehicle lock button
Press vehicle lock button1.
or

Press the lock button at the outside
door handle (
page 57).
or

Vehicles with trunk lid opening/closing
system*, press the KEYLESS-GO lock-
ing/closing switch at the trunk
(page 102).
The vehicle locks. The turn signals
flashes three times to confirm locking.
Checking the battery

Press button‹ orŒ.
Battery check lamp5 comes on brief-
ly to indicate that the SmartKey battery
is in order.Loss of the SmartKey with KEYLESS-GO
If you lose your SmartKey with
KEYLESS-GO or mechanical key you
should do the following:

Have the SmartKey with KEYLESS-GO
deactivated by an authorized
Mercedes-Benz Center.

Report the loss of the SmartKey with
KEYLESS-GO or the mechanical key im-
mediately to your car insurance com-
pany.

Have the mechanical lock replaced if
necessary.
Your authorized Mercedes-Benz Center
will be glad to supply you with a replace-
ment. 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 battery is discharged.
Peplace the battery (
page 332).
You can obtain the required battery at
any authorized Mercedes-Benz Center.
iIf the battery is ckecked within signal
range of the vehicle, pressing the
button‹ orŒ will lock or unlock
the vehicle accordingly.

182 Controls in detailAutomatic climate controlRear 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 175).
The indicator lamp on the button
comes on.
Deactivating

Press buttonF (
page 175) again.
The indicator lamp on the button goes
out.Deactivating the climate control sys-
tem
Deactivating
It is possible to completely deactivate the
automatic climate control system. 
Press button M (
page 175).
The display shows “0”.
Reactivating
There are several ways to reactivate the
automatic climate control system:

Press one of the following buttons,
M, P, U, a temperature con-
trol switch (
page 175) or air volume
switch 9 on the climate control pan-
el.
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.

184 Controls in detailAutomatic climate controlDeactivating
Press buttonT (
page 175).
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 dropsVentilated storage compartment
(except CL 55 AMG)
The storage compartment under the front
armrest (
page 222) can be ventilated
when the automatic air conditioning is
switched on. The switch is located inside
the storage compartment in the front. The
air temperature is about the same as that
of the center air vents.
The air volume is dependent on the setting
of:


Air distribution control


Air volume control


Air vents in the dashboard
The air temperature is about the same as
that of the dashboard air vents. It cannot
be regulated separately.Switching ventilation on

Open the storage compartment in front
of the armrest, see “Storage compart-
ment below the front armrest”
(page 222)

Push upper portion of switch.
Switching ventilation off

Open the storage compartment in front
of the armrest, see “Storage compart-
ment below the front armrest”
(page 222)

Push lower portion of switch.
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
setting1 regardless of the air
distribution control setting.
!Do not obstruct the air vent in the stor-
age compartment.iThe compartment can get very warm
due to its confined space. When storing
heat sensitive objects in the compart-
ment, close the air vent while heating
the passenger compartment.

190 Controls in detailPower windows
Synchronizing the power windows
The power window must be resynchro-
nized each time

after the battery has been disconnect-
ed.


if the power windows cannot be fully
opened (Express-open) or closed
(Express-close).Synchronizing

Switch on ignition.

Press the power window switches at
the symbolj until the side win-
dows are closed.
Hold the switches for approximately
one second.
The power windows are synchronized.
If potential danger exists, proceed as fol-
lows:

Release the lock button.


Pull on the door handle and hold firmly.
The side windows and the
sliding / pop-up roof will open for as long
as the door handle is held but the door
not opened.


194 Controls in detailSliding / pop-up roofClosing the sliding/pop-up roof with
KEYLESS-GO* (Convenience feature)
The power window (
page 186) will also
be closed when the sliding/pop-up roof is
operated with KEYLESS-GO.

Press and hold lock button at door
(page 57) until the sliding / pop-up
roof and the side windows are closed.
Synchronizing the sliding / pop-up roof
The power sliding / pop-up roof must be re-
synchronized each time after:

the battery has been disconnected


the sliding / pop-up roof has been
closed manually


the sliding / pop-up roof does not open
smoothly


a malfunction
Synchronizing

Switch on ignition.

Press and hold the switch in
direction1 until the sliding/pop-up
roof is fully raised at the rear.
Hold the switch for approximately one
second.
The sliding/pop-up roof is synchro-
nized.
Warning!
G
When closing the windows and the
sliding /pop-up roof, make sure that there is
no danger of anyone being harmed by the
closing procedure.
The sliding/pop-up roof will not automati-
cally reopen if blocked during convenience
closing.
If potential danger exists, proceed as fol-
lows:

Release the lock button.


Pull on the door handle and hold firmly.
The side windows and the
sliding / pop-up roof will open for as long
as the door handle is held but the door
not opened.