2008 MERCEDES-BENZ SL55AMG Battery
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105 Controls in detail
Locking and unlocking
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.
!To prevent possible malfunction, avoid ex-
posing the SmartKey to high levels of electro-
magnetic 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 interference
received, including interference that may
cause undesired operation.
Any unauthorized modification to this device
could void the user’s authority to operate the
equipment.
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 interference, and
(2) this device must accept any interference
received, including interference that may
cause 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 win-
dows (
page 201) and the retractable hardtop
using the SmartKey (
page 206).
!If you cannot lock or unlock the vehicle
with the SmartKey, then the batteries in the
SmartKey are discharged, the SmartKey is mal-
functioning or the vehicle battery is drained.
Check the batteries in the SmartKey
(
page 113) and replace them if necessary
(
page 407).
Use the mechanical key to unlock the
driver’s door (
page 403) and the trunk
(
page 404).
Have the vehicle batteries and their
connections checked (
page 427).
Use the mechanical key to lock or unlock the
doors (
page 405).
If the SmartKey is malfunctioning, contact
Roadside Assistance or an authorized
Mercedes-Benz Center.
Page 108 of 489
107 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, interior lockable storage compart-
ments and the fuel filler flap.
Press and hold buttonsŒand‹
simultaneously for about 5 seconds
until battery check lamp5 flashes
twice.
The SmartKey will then function as
follows:Unlocking driver’s door and fuel filler
flap
Press button Πonce.
All turn signal lamps flash once.
An acoustic warning sounds once.
The locking knob in the driver’s
door moves up.
The anti-theft alarm system is
disarmed.
Global unlocking
Press button Πtwice.
All turn signal lamps flash once.
An acoustic warning sounds once.
The locking knobs in the doors
move up.
The anti-theft alarm system is
disarmed.Global locking
Press button ‹.
With all doors and the trunk closed:
All turn signal lamps flash three
times.
An acoustic warning 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 buttons Œ and ‹
simultaneously for about 5 seconds
until battery check lamp5
(
page 104) flashes twice.
Page 109 of 489
108 Controls in detail
Locking and unlocking
SmartKey with KEYLESS-GO*
Vehicles equipped with KEYLESS-GO come
with two SmartKeys with KEYLESS-GO,
each with remote controls and a remov-
able mechanical key.
The function of the SmartKey overrules the
KEYLESS-GO function.
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 glove box
the storage compartment under the
armrest
the storage compartments in the rear
the fuel filler flap
SmartKey with KEYLESS-GO
1‹Lock button
2Š Opening button for trunk
(
page 114)
3Mechanical key locking tab
4ŒUnlock button
5Battery check lamp
6Â Panic button (
page 88)
For information on using the SmartKey
buttons, see “SmartKey” (
page 104).
Warning!G
When leaving the vehicle, always take the
SmartKey with KEYLESS-GO 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.
!To prevent possible malfunction, avoid
exposing the SmartKey with KEYLESS-GO 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 interference
received, including interference that may
cause undesired operation.
Any unauthorized modification to this device
could void the user’s authority to operate the
equipment.
Page 110 of 489
109 Controls in detail
Locking and unlocking
Important notes on using KEYLESS-GO
You can also use the SmartKey with
KEYLESS-GO like a normal SmartKey
(
page 104).
You can combine KEYLESS-GO func-
tions with normal SmartKey functions
(e.g. unlocking with KEYLESS-GO and
locking with the ‹button).
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
Doing so could impair the function of
the KEYLESS-GO system.
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 interference, and
(2) this device must accept any interference
received, including interference that may
cause undesired operation of the device.
Any unauthorized modification to this device
could void the user’s authority to operate the
equipment.
iYou can also close the power windows
(
page 201) and the retractable hardtop using
the SmartKey with KEYLESS-GO (
page 206).
iWhen you unlock the vehicle, the
electro-hydraulic brake system is activated.
!If you cannot lock or unlock the vehicle with
the SmartKey with KEYLESS-GO, then the
batteries in the SmartKey are discharged, the
SmartKey with KEYLESS-GO is malfunctioning or
the vehicle battery is drained.
Check the batteries in the SmartKey with
KEYLESS-GO (
page 113) and replace
them if necessary (
page 407).
Use the mechanical key to unlock the
driver’s door (
page 403) and the
trunk (
page 404).
Have the vehicle batteries and their
connections checked (
page 427).
Use the mechanical key to lock or unlock the
doors (
page 405).
If the SmartKey with KEYLESS-GO is malfunc-
tioning, contact Roadside Assistance or an
authorized Mercedes-Benz Center.
Page 113 of 489
112 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 an outside
door handle only unlocks the driver’s door,
interior lockable storage compartments
and the fuel filler flap.
Press and hold buttons Œ and ‹
simultaneously for about 5 seconds
until battery check lamp5
(
page 108) 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 signal lamps flash once.
An acoustic warning sounds 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 signal lamps flash once.
An acoustic warning sounds once.
The locking knobs in the doors
move up.
The anti-theft alarm system is
disarmed.Global locking
Press lock button on an outside door
handle.
With all doors and the trunk closed:
All turn signal lamps flash three
times.
An acoustic warning 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 buttons Œ and ‹
simultaneously for about 5 seconds
until battery check lamp5
(
page 108) flashes twice.
iVehicles with trunk opening/closing
system*: You can also lock the vehicle using
the KEYLESS-GO locking/closing switch
(
page 119).
Page 114 of 489
113 Controls in detail
Locking and unlocking
Checking the batteries in the SmartKey
or SmartKey with KEYLESS-GO*
Press button ‹or Œ.
The battery check lamp (
page 104)
or (
page 108) comes on briefly to in-
dicate that the SmartKey or SmartKey
with KEYLESS-GO batteries are in
order.Loss of the SmartKey or SmartKey with
KEYLESS-GO*
If you lose your SmartKey or SmartKey
with KEYLESS-GO or the mechanical key,
you should do the following:
Have the SmartKey or SmartKey with
KEYLESS-GO deactivated by an
authorized Mercedes-Benz Center.
Report the loss of the SmartKey or
SmartKey with KEYLESS-GO or the
mechanical key to your car insurance
company immediately.
Have the mechanical lock replaced if
necessary.
Any authorized Mercedes-Benz Center will
be glad to supply you with a replacement.
Opening the doors from the inside
You can open a locked door from the in-
side. Open door only when conditions are
safe to do so.
1Locking knob
2Inside door handle
Pull on inside door handle2 in direc-
tion of arrow.
If the door was locked, locking knob1
will move up.
Opening a door causes its window to
open slightly. It will fully close when the
door is shut.
iIf the battery check lamp does not come
on briefly during check, then the SmartKey or
SmartKey with KEYLESS-GO batteries are
discharged.
Replace the batteries (
page 407).
You can obtain the required batteries at any
authorized Mercedes-Benz Center.
iIf the batteries are checked within signal
range of the vehicle, pressing the‹orŒ
button will lock or unlock the vehicle
accordingly.
Page 115 of 489
114 Controls in detail
Locking and unlocking
Opening the trunk
You can open the trunk if the vehicle is sta-
tionary and the retractable hardtop is fully
opened or closed.
A minimum height clearance of
6.2 ft (1.88 m) is required to open the
trunk lid.!A side window will not work if it is blocked
with ice or if the battery needs charging. If you
cannot shut a door, do not force it or you could
damage the door or the side window.
Fix whatever is affecting the window before
trying to shut the door.
iIf you hear a warning signal, you have forgot-
ten to switch off the low beam headlamps or the
parking lamps before opening the driver’s door.
In addition, the message
Lights Are Still
On
appears in the multifunction display.
Switch off the low beam headlamps or the park-
ing lamps.
If the message
Switch off lights or
remove key.
appears in the multifunction
display, remove the SmartKey from the starter
switch or switch off the automatic headlamp
mode.
!Failure to switch off the exterior lamps when
leaving the vehicle may result in a discharged
battery.
iIf the vehicle has previously been locked
with the SmartKey or KEYLESS-GO*, opening a
door from the inside will trigger the anti-theft
alarm system.
To cancel the alarm, do one of the following:
Press buttonŒ or‹on the
SmartKey.
Insert the SmartKey in the starter switch.
Vehicles with KEYLESS-GO*:
Grasp an outside door handle.
The SmartKey with KEYLESS-GO* must be
within 3 ft (1 m) of the vehicle.
Press the KEYLESS-GO* start/stop button
(
page 41).
The SmartKey with KEYLESS-GO* must be
inside the vehicle.
Warning!G
Make sure the trunk is closed when the
engine is running and while driving.
Among other dangers, deadly carbon
monoxide (CO) gases may enter vehicle
interior resulting in unconsciousness and
death.
iIf the trunk lid does not open, the trunk lid is
still locked separately (
page 120).
Page 122 of 489
121 Controls in detail
Locking and unlocking
Trunk lid emergency release
With the emergency release button, the
trunk can be opened from inside the trunk.
The emergency release button is located
on the left side of the trunk.
1Emergency release button
Briefly press emergency release
button1.
The trunk lid unlocks and opens
slightly.
Push up the trunk lid to fully open.Illumination of the emergency release
button:
The button flashes for 30 minutes after
opening the trunk.
The button flashes for 60 minutes after
closing the trunk.
Power closing assist for trunk lid
It is not necessary to slam the trunk lid
closed. An electrical power-assisted
mechanism draws the trunk lid closed
quietly and automatically once the trunk
lid has been latched. When the electrical
power-assisted mechanism has stopped,
the trunk can be re-opened.iThe emergency release button unlocks the
trunk while the vehicle is standing still or in
motion.
iThe emergency release button does not un-
lock the trunk if the vehicle battery is discharged
or disconnected.Warning!G
To prevent possible personal injury, always
keep hands and fingers away from the trunk
lid opening when closing the trunk.
Be especially careful when small children
are around.
In case of danger, pull the inside or outside
door handle, or press the trunk lid lock.
To prevent personal injury, never actuate
the closing assist mechanism by tampering
with the door or trunk lid latch.