2007 MERCEDES-BENZ SL55AMG engine

96 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 40).
With KEYLESS-GO*

Switch on the ignition (
page 41).
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.
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Starting 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).

107 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 102).


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.


To lock or unlock the vehicle, the
SmartKey with KEYLESS-GO must be
located outside the vehicle within ap-
proximately 3 ft (1 m) of a door or the
trunk.


In order to start the engine with the
SmartKey with KEYLESS-GO:

The SmartKey with KEYLESS-GO
must be located in the vehicle.


All doors must be closed.


The brake pedal must be firmly de-
pressed. Do not depress the accel-
erator.


If you have started the engine with the
KEYLESS-GO start/stop button
(page 40), you can only turn it off
again with this button, even if you have
put the SmartKey in the starter switch
in the meantime.
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Canada 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 re-
ceived, 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.
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You can also close the power windows
(
page 196) and the retractable hardtop using
the SmartKey with KEYLESS-GO (
page 201).
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When you unlock the vehicle, the
electro-hydraulic brake system is activated.

108 Controls in detailLocking and unlocking

This does not apply if, after starting, the
selector lever is still in positionP and
the SmartKey is then inserted in the
starter switch. The SmartKey will then
have priority over the KEYLESS-GO
function and the vehicle’s electrical
system will operate according to the
position of the SmartKey in the starter
switch, even stopping the engine.


If the SmartKey with KEYLESS-GO is
positioned farther away from the vehi-
cle, the system may no longer recog-
nize the SmartKey with KEYLESS-GO.
The vehicle then cannot be locked or
the engine started via the KEYLESS-GO
system.


If the SmartKey with KEYLESS-GO is re-
moved from the vehicle while the en-
gine is running (e.g. if passenger exits
the vehicle with the SmartKey with
KEYLESS-GO), the message
Key not
detected!
will appear in the multifunc-
tion display while driving off.Find the SmartKey or change its
present location immediately (e.g.
place it on the front passenger seat or
insert it in shirt pocket).


Remember that the engine can be
started by anyone with a SmartKey
with KEYLESS-GO that is left inside the
vehicle. If you leave the SmartKey with
KEYLESS-GO behind when exiting and
locking the vehicle, the message
Key
recognized in vehicle!
will appear in
the multifunction display.
Factory setting
Global unlocking

Grasp an outside door handle.
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
and reactivate the alarm system within ap-
proximately 40 seconds of unlocking if
neither a door nor the trunk is opened.
Global locking

Press lock button on an outside door
handle (
page 64) or the trunk lid
(
page 110).
With the trunk and all doors closed, all
turn signals flash three times. The lock-
ing knobs in the doors move down.
The anti-theft alarm system is armed.
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If the vehicle has been parked for more than
72 hours, you must pull an outside door handle
in order to activate the KEYLESS-GO function.
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The vehicle could inadvertently unlock 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

128 Controls in detail LightingFor information on how to switch on the
headlamps and use the turn signals, see
“Switching on headlamps” (
page 55)
and “Turn signals” (
page 56).
Exterior lamp switch
The exterior lamp switch is located on the
dashboard to the left of the steering wheel.
MOff
Daytime running lamp mode
(
page 130)
UAutomatic headlamp mode
Daytime running lamp mode
(page 130)
CParking lamps (also tail lamps, li-
cense plate lamps, side marker
lamps, instrument panel lamps)Canada only: When the engine is
running, the low beam headlamps
are also switched on.
BLow beam headlamps (or high
beam headlamps when the combi-
nation switch is pushed forward)
and parking lamps
ˆStanding lamps, right (turn left one
stop)
‚Standing lamps, left (turn left two
stops)
CIndicator lamp for parking lamps
‡Indicator lamp for front fog lamps
†Indicator lamp for rear fog lamp
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If you drive in countries where vehicles drive
on the other side of the road than the country in
which the vehicle is registered, you must have
the headlamps modified for symmetrical low
beams. Relevant information can be obtained at
any authorized Mercedes-Benz Center.
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With the SmartKey removed from the starter
switch or the engine turned off with
KEYLESS-GO* and the driver’s door open, a
warning sounds if the parking lamps or the low
beam headlamps are switched on.
The message $
Turn off lamps
appears in
the multifunction display.

129 Controls in detail
Lighting
Manual headlamp mode
The low beam headlamps and parking
lamps can be switched on or off with the
exterior lamp switch (
page 55).
Automatic headlamp mode
The following lamps switch on and off au-
tomatically depending on the brightness of
the ambient light:


Low beam headlamps


Tail lamps


Parking lamps


License plate lamps


Side marker lamps

Turn the exterior lamp switch to posi-
tion U.
With the SmartKey in starter switch
position1 or the KEYLESS-GO
start/stop button pressed once, only
the parking lamps and side marker
lamps will switch on and off automati-
cally.
When the engine is running, the low
beam headlamps, the tail and parking
lamps, the license plate lamps, and the
side marker lamps will switch on and
off automatically.
Warning!
G
If the exterior lamp switch is set toU,

the headlamps may switch off unexpect-
edly when the system senses bright am-
bient light, for example light from
oncoming traffic.


the headlamps will not be automatically
switched on under foggy conditions.
To minimize risk to you and to others, acti-
vate headlamps by turning exterior lamp
switch to B when driving or when traffic
and / or ambient lighting conditions require
you to do so.
In low ambient lighting conditions, only
switch from position U to B with the
vehicle at a standstill in a safe location.
Switching from U to B will briefly
switch off the headlamps. Doing so while
driving in low ambient lighting conditions
may result in an accident.
The automatic headlamp feature is only an
aid to the driver. The driver is responsible for
the operation of the vehicle’s lights at all
times.

130 Controls in detailLightingDaytime running lamp mode
Turn the exterior lamp switch to
positionM orU.
When the engine is running, the low
beam headlamps are switched on auto-
matically.
In low ambient light conditions, the fol-
lowing lamps will switch on additional-
ly:

Tail lamps


Side marker lamps


Parking lamps


License plate lampsCanada only:
The daytime running lamp mode is manda-
tory and therefore in a constant mode.
When the engine is running and you shift
from a driving position to positionN orP,
the low beam headlamps will switch off
with a three-minute delay.
When the engine is running and you


turn the exterior lamp switch to posi-
tion C, the parking lamps switch on
additionally


turn the exterior lamp switch to posi-
tion B, the manual headlamp mode
has priority over the daytime running
lamp mode
The corresponding exterior lamps
switch on (
page 128).USA only:
By default, the daytime running lamp mode
is deactivated. Activate the daytime run-
ning lamp mode using the control system,
see “Setting daytime running lamp mode
(USA only)” (
page 159).
When the engine is running and you turn
the exterior lamp switch to positionC
or B, the manual headlamp mode has
priority over the daytime running lamp
mode.
The corresponding exterior lamps switch
on (
page 128).
Locator lighting and night security
illumination
Locator lighting and night security illumi-
nation are described in the control system
section, see “Setting locator lighting”
(
page 160) and “Setting night security il-
lumination” (
page 160).

132 Controls in detailLightingCorner-illuminating front fog lamps
The corner-illuminating front fog lamps im-
prove illumination of the road into which
you are turning.
The corner-illuminating front fog lamps will
operate with the engine running and with

the exterior lamp switch in
positionB (
page 128)
or


the exterior lamp switch in
positionU (
page 128)
or


the daytime running lamp mode
activated (
page 130)Driving forward
Switching on corner-illuminating front
fog lamps

Depending on whether you are turning
left or right, switch on the left or right
turn signal (
page 56).
The respective front fog lamp comes on
and illuminates the road onto which
you are turning.
Switching off corner-illuminating front
fog lamps
The combination switch for the turn signal
resets automatically after major steering
wheel movements. This will switch off the corner-illuminating front fog lamps if they
were activated by switching on the left or
right turn signal.
If the turn signal should stay on after mak-
ing the turn, the turn signal and corner-illu-
minating front fog lamp can be switched
off by returning the combination switch to
its original position.
Driving rearward
Switching on corner-illuminating front
fog lamps

Place the gear selector lever in
positionR.
The inverse front fog lamp comes on
automatically depending on the steer-
ing direction and steering angle.
Switching off corner-illuminating front
fog lamps

Place the gear selector lever out of
positionR.
The respective front fog lamp goes out.
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Corner-illuminating front fog lamps will only
come on in low ambient lighting conditions.
The corner-illuminating front fog lamps function
is not available at a vehicle speed above 25 mph
(40 km/h).
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The corner-illuminating front fog lamps will
come on automatically depending on the
steering angle, even if you did not switch on ei-
ther turn signal.
If the corner-illuminating front fog lamps came
on automatically, they will also go out automati-
cally depending on the steering angle.

137 Controls in detail
Instrument cluster
To brighten illumination
Turn reset button 1 in the instrument
cluster clockwise.
The instrument cluster illumination will
brighten.
To dim illumination

Turn reset button 1 in the instrument
cluster counterclockwise.
The instrument cluster illumination will
dim.
Coolant temperature gauge
Trip odometer
Make sure you are viewing the trip
odometer display (
page 139).

If it is not displayed, press the j or
k button on the multifunction
steering wheel repeatedly until the trip
odometer appears.

Press and hold reset button1
(page 136) until the trip odometer is
reset.
Warning!
G


Driving when your engine is overheated
can cause some fluids which may have
leaked into the engine compartment to
catch fire. You could be seriously
burned.


Steam from an overheated engine can
cause serious burns which can occur
just by opening the hood. Stay away
from the engine if you see or hear steam
coming from it.
Turn off the engine, get out of the vehicle
and do not stand near the vehicle until the
engine has cooled down.
!
Excessive coolant temperature triggers the
coolant temperature warning lamp (
page 337)
and a warning in the multifunction display
(
page 371).
The engine should not be operated with the cool-
ant temperature above 248°F (120°C). Doing so
may cause serious engine damage which is not
covered by the Mercedes-Benz Limited
Warranty.
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During severe operating conditions, e.g.
stop-and-go traffic, the coolant temperature may
rise close to 248°F (120°C).