key battery MERCEDES-BENZ SL55AMG 2005 R230 Owner's Manual

37 Getting started
Unlocking
SmartKey with KEYLESS-GO*
You can also use the SmartKey with
KEYLESS-GO like a normal SmartKey.KEYLESS-GO start/stop button1USA only
2Canada only
The SmartKey with KEYLESS-GO must be
located in the vehicle.
Make sure the gear selector lever is set
toP.

Do not depress the brake pedal.Position 0
Before you press the KEYLESS-GO
start/stop button, the vehicle’s on-board
electronics have the status0 (as with
SmartKey removed).
Position 1

Press the KEYLESS-GO start/stop but-
ton once.
This supplies power to some electrical
consumers, such as seat adjustment.
!If the SmartKey cannot be turned in the
starter switch, the starter battery may
not be sufficiently charged.

Check the starter battery and
charge it if necessary (
page 401).


Get a jump start (
page 406).
To prevent accelerated battery dis-
charge or a completely discharged bat-
tery, always remove the SmartKey from
the starter switch when the engine is
not in operation.
iIf you now press the KEYLESS-GO
start/stop button

once again, the ignition (position2)
is switched on


twice, the power supply is again
switched off

49 Getting started
Driving
Starting with KEYLESS-GO*
You can start your vehicle without the
SmartKey in the starter switch using the
KEYLESS-GO start/stop button on the
gear selector lever.KEYLESS-GO start/stop button1USA only
2Canada only
M a k e s u r e t h e g e a r s e l e c t o r l e v e r i s s e t
to P.

Depress the brake pedal during the
starting procedure. Do not depress ac-
celerator.
The selector lever lock is released.

Press KEYLESS-GO start/stop
button1 once.
The engine starts automatically if the
SmartKey with KEYLESS-GO is in the
vehicle.
For information on turning off the engine
with KEYLESS-GO, see “Turning off with
KEYLESS-GO*” (
page 59).
Starting difficulties
If the engine does not start as described,
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:
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 48). Remember that extended
starting attempts can drain the battery.

Get a jump start (
page 406).
If the engine does not start after several
starting attempts, there could be a mal-
function in the engine electronics or in the
fuel supply system.

Notify an authorized Mercedes-Benz
Center.

88 Safety and SecurityAnti-theft systemsImmobilizer
The immobilizer prevents unauthorized
persons from starting your vehicle.
Activating
With the SmartKey
Remove the SmartKey from the starter
switch.
With KEYLESS-GO*

Press the start/stop button on the gear
selector lever once.
The engine is turned off.

Open the driver’s door.Deactivating
With the SmartKey

Turn the SmartKey in the starter switch
to position2 (
page 36).
With KEYLESS-GO*

Switch on the ignition (
page 38).
Anti-theft alarm system
Once the alarm system has been armed, a
visual and audible alarm is triggered when
someone opens

a door


the trunk lid


the hood


a storage compartment in the rear


the glove box


the storage compartment under the
armrest
The alarm will stay on, even if the activat-
ing element (a door, for example) is imme-
diately closed.
iStarting the engine will also deactivate
the immobilizer.
In case the engine cannot be started
(yet the vehicle’s battery is charged),
the system is not operational. Contact
an authorized Mercedes-Benz Center
or call 1-800-FOR-MERCedes (in the
USA), or 1-800-387-0100 (in Canada).

95 Controls in detail
Locking and unlocking
SmartKey with remote control1‹Lock button
2Š Unlock button for the trunk lid
3Mechanical key locking tab
4ΠUnlock button
5Battery check lamp
6Â Panic button (
page 78)
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. It is possible
for children to open a locked door from the
inside, which could result in an accident
and/or serious injury.!To prevent possible malfunction, avoid
exposing the SmartKey to high levels of
electromagnetic radiation.
iUSA only:
This device complies with Part 15 of
the FCC Rules. Operation is subject to
the following two conditions:
(1) This device may not cause harmful
interference, and
(2) this device must accept any inter-
ference received, including interfer-
ence that may cause undesired
operation.
Any unauthorized modification to this
device could void the user’s authority
to operate the equipment.

96 Controls in detailLocking and unlocking
Factory setting
Global unlocking
Press button Œ.
All turn signals flash once. The locking
knobs in the doors move up. The
anti-theft alarm system is disarmed.
The vehicle will lock again automatically
within approximately 40 seconds of un-
locking if:


neither door nor trunk is opened


the SmartKey is not inserted in the
starter switch


the central locking switch is not acti-
vated
Global locking

Press button ‹.
All turn signals flash 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 so that
pressingŒ only unlocks the driver’s
door, interior lockable storage compart-
ments and the fuel filler flap.

Press and hold buttons Œ and ‹
simultaneously for about six seconds
until battery check lamp5 flashes
twice.
The SmartKey will then function as fol-
lows:
Unlocking driver’s door and fuel filler
flap

Press button Πonce.
All turn signals flash once. The locking
knob in the driver’s door moves up.
The anti-theft alarm system is disarmed.
iCanada only:
This device complies with RSS-210 of
Industry Canada. Operation is subject
to the following two conditions:
(1) This device may not cause interfer-
ence, and
(2) this device must accept any inter-
ference received, including interfer-
ence that may cause undesired
operation undesired operation of
the device.
Any unauthorized modification to this
device could void the user’s authority
to operate the equipment.iYou can also open and close the power
windows (
page 193) and the retract-
able hardtop using the SmartKey
(
page 200).

97 Controls in detail
Locking and unlocking
Global unlocking
Press button Πtwice.
All turn signals flash once. The locking
knobs in the doors move up. The anti-theft
alarm system is disarmed.
Global locking

Press button ‹.
All turn signals flash three times. The lock-
ing knobs in the doors move down.
The anti-theft alarm system is armed.
Restoring to factory setting

Press and hold buttons Œ and ‹
simultaneously for about six seconds
until battery check lamp5
(page 94) flashes twice.Checking the batteries

Press button ‹ or Œ.
Battery check lamp5 (
page 94)
comes on briefly to indicate that the
SmartKey batteries are in order.
!If you can no longer lock or unlock the
vehicle with the SmartKey, then the
batteries in the SmartKey are dis-
charged, the SmartKey is malfunction-
ing or the vehicle battery is drained.

Check the batteries in the
SmartKey (
page 97) and replace
them if necessary (
page 377).


Use the mechanical key to unlock
the driver’s door (
page 374).


Have the vehicle batteries and their
connections checked
(page 401).


Use the mechanical key to lock or
unlock the doors (
page 376).
If the SmartKey is malfunctioning, con-
tact an authorized Mercedes-Benz
Center.
iIf battery check lamp5 does not
come on briefly during check, then the
SmartKey batteries are discharged.

Replace the batteries (
page 377).
You can obtain the required batteries
at any authorized Mercedes-Benz
Center.
iIf the batteries are checked within sig-
nal range of the vehicle, pressing
the‹ orŒ button will lock or
unlock the vehicle accordingly.

99 Controls in detail
Locking and unlocking
If the SmartKey with KEYLESS-GO is valid,
your vehicle unlocks

the doors


the trunk lid


the glove box


the storage compartment under the
armrest


the storage compartment in the rear


the fuel filler flap
SmartKey with KEYLESS-GO1‹Lock button
2Š Unlock button for the trunk lid
3Mechanical key locking tab
4ŒUnlock button
5Battery check lamp
6Â Panic button (
page 78)
For information on using the SmartKey
buttons, see “SmartKey” (page 94).
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. 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.

103 Controls in detail
Locking and unlocking
Selective setting
If you frequently travel alone, you may wish
to reprogram the SmartKey with
KEYLESS-GO so that grasping a door han-
dle only unlocks the driver’s door, interior
lockable storage compartments and the
fuel filler flap.
Press and hold buttons Œ and ‹
simultaneously for about six seconds
until battery check lamp5
(page 94) flashes twice.
The SmartKey with KEYLESS-GO will
then function as follows:Unlocking the driver’s door and fuel fill-
er flap

Grasp the driver’s door handle.
All turn signals flash once. The locking
knob in the driver’s door moves up. The
anti-theft alarm system is disarmed.
Global unlocking

Grasp the door handle on the passen-
ger side.
All turn signals flash once. The locking
knobs in the doors move up. The
anti-theft alarm system is disarmed.
Global locking

Press lock button at door handle or
trunk lid.
All turn signals 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 buttons Œ and ‹
simultaneously for about six seconds
until battery check lamp5
(page 98) flashes twice.
!If you can no longer lock or unlock the
vehicle with the SmartKey with
KEYLESS-GO, then the battery in the
SmartKey is discharged, the SmartKey
with KEYLESS-GO is malfunctioning or
the vehicle battery is drained.

Check the battery in the SmartKey
with KEYLESS-GO (
page 97) and
replace it if necessary
(
page 377).

105 Controls in detail
Locking and unlocking
Checking the battery
Press button ‹ or Œ.
Battery check lamp5 (
page 98)
comes on briefly to indicate that the
SmartKey batteries are in order.Unlocking the trunk
You can unlock the trunk separately.
A minimum height clearance of
6.2 ft (1.88 m) is required to open the
trunk lid.
The handle is located above the rear li-
cense plate recess.
1Handle

Pull on handle 1.
The vehicle unlocks the trunk lid only.
!If battery check lamp5 (
page 98)
does not come on briefly during check,
then the SmartKey battery is dis-
charged.


Replace the battery (
page 377).
You can obtain the required battery at
any authorized Mercedes-Benz Center.
iIf the vehicle was previously centrally
locked, the trunk lid will lock automati-
cally when closed (
page 109). The
turn signals will flash three times to
confirm locking.
To prevent a possible inadvertent lock-
out, the trunk lid will open automatical-
ly if a SmartKey with KEYLESS-GO is
recognized inside the trunk.

190 Controls in detailAutomatic climate controlResidual 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 o r r e m o v e i t f r o m t h e
starter switch.

Press button T (
page 183).
The indicator lamp on button T
comes on.Deactivating

Press button T (
page 183).
The indicator lamp on button T
goes out.
The residual heat is automatically turned
off:


when the ignition is switched on


after about 30 minutes


if the battery voltage drops
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 distribu-
tion control setting.