2009 MERCEDES-BENZ SLR engine

93 Safety and Security
Anti-theft systems
Anti-theft systems
Immobilizer
The immobilizer prevents unauthorized
persons from starting your vehicle.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle.
The engine can be started by anyone with
a valid SmartKey that is left inside the ve-
hicle.
Activating
Remove the SmartKey from the starter
switch.
Deactivating

Switch on the ignition (
page 40).
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


the hood


the storage compartment between the
backrests


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.The alarm system will also be triggered
when


someone attempts to raise the vehicle


someone opens a door from the inside
if the vehicle was locked with the
SmartKey


someone opens the trunk with the
emergency release button
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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).
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If the alarm stays on for more than
30 seconds, a call to the Response Center is ini-
tiated automatically by the Tele Aid system
(
page 215) provided Tele Aid service was sub-
scribed to and properly activated, and that nec-
essary cellular service and GPS coverage are
available.

107 Controls in detail
Lighting
Low-beam headlamps
The low-beam headlamps can be switched
on and off with the exterior lamp switch
using the manual headlamp mode.
Turn the exterior lamp switch to
positionB.
The following lamps switch on:

Low-beam headlamps


Tail and parking lamps


License plate lamps


Side marker lamps
Automatic headlamp mode
The following lamps switch on and off
automatically depending on the brightness
of the ambient light:


Low-beam headlamps


Tail and parking lamps


License plate lamps


Side marker lamps

Turn the exterior lamp switch to
position U.
With the SmartKey in starter switch
position1, the tail and parking lamps,
the license plate lamps, and the side
marker lamps will switch on and off
depending on the brightness of the
ambient light.
When the engine is running, the
low-beam headlamps, the tail and park-
ing lamps, the license plate lamps, and
the side marker lamps will switch on
and off depending on the brightness of
the ambient light.
Warning!
G
If the exterior lamp switch is set toU,
the headlamps will not be automatically
switched on under foggy conditions.
To minimize risk to you and to others,
activate headlamps by turning exterior lamp
switch toB when driving or when traffic
and/or ambient lighting conditions require
you to do so.
In low ambient lighting conditions, only
switch from positionU toB with the
vehicle at a standstill in a safe location.
Switching fromU toB 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.
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Canada only:
High-beam headlamps are only available with the
exterior lamp switch in positionB.

108 Controls in detailLightingDaytime running lamp mode
In Canada the daytime running lamp mode
is mandatory and therefore in a constant
mode.
In the USA the daytime running lamp mode
is deactivated by default. Activate the day-
time running lamp mode using the control
system, see “Setting daytime running lamp
mode (USA only)” (
page 135).

Turn the exterior lamp switch to
positionM orU.
When the engine is running, the
low-beam headlamps are switched on.
In low ambient light conditions, the
following lamps will switch on
additionally:

Tail and parking lamps


License plate lamps


Side marker lampsCanada only:
When the engine is running, and you shift
from a driving position to neutral
positionN or park positionP with the vehi-
cle at a standstill, the low-beam head-
lamps will switch off with a delay of 3
minutes.
When the engine is running, and you


turn the exterior lamp switch to
positionC, the low-beam head-
lamps, the tail and parking lamps, the
license plate and the side marker
lamps switch on.


turn the exterior lamp switch to
positionB, the manual headlamp
mode has priority over the daytime
running lamp mode. The corresponding
exterior lamps switch on (
page 106).
USA only:
When the engine is running, and you turn
the exterior lamp switch to positionC
orB, the manual headlamp mode has
priority over the daytime running lamp
mode. The corresponding exterior lamps
switch on (
page 106).
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With the daytime running lamp mode activat-
ed and the engine running, the low-beam head-
lamps cannot be switched off manually.
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With the exterior lamp switch in
positionM or U you cannot switch on the
high-beam headlamps.
The high-beam flasher is available at all times.
For nighttime driving you should turn the exterior
lamp switch to positionB to permit activa-
tion of the high-beam headlamps.
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With the daytime running lamp mode
activated and the exterior lamp switch in
positionM, you cannot switch on the
high-beam headlamps.
The high-beam flasher is available at all times.
For nighttime driving you should turn the exterior
lamp switch to positionB or U to permit
activation of the high-beam headlamps.

112 Controls in detailLightingInterior lighting
The controls are located in the overhead
control panel.
1Left-hand reading lamp on/off
2Right-hand reading lamp on/off
3Interior lighting on/off
4Automatic control on/offAutomatic control
Deactivating

Slide switch4 to the right.
The interior lighting and the entry/exit
lamps remain switched off in darkness,
even when you

unlock the vehicle


open a door


remove the SmartKey from the
starter switchActivating

Slide switch 4 to the left.
Interior lamps switches on in darkness
when you

unlock the vehicle


open a door


remove the SmartKey from the
starter switch
In addition, the entry/exit lamps in the
door come on when you open a door.
The interior lighting switches off auto-
matically following a preset time delay.
For more information, see “Setting in-
terior lighting delayed switch-off”
(
page 137).
!
An interior lamp switched on manually does
not go out automatically.
Leaving an interior lamp switch in the ON posi-
tion for extended periods of time with the engine
turned off could result in a discharged battery.
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The interior lighting is factory-set to
automatic mode.
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If a door remains open, the interior lamps
switch off automatically after approximately
5minutes.

115 Controls in detail
Instrument cluster
Coolant temperature gauge
Resetting trip odometer
Press buttonè orÿ repeatedly
until you see the standard display in
the multifunction display (
page 117).

Press buttonk orj until the
trip odometer appears in the right
multifunction display.

Press and hold the reset button1
(page 114) 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
f r o m t h e e n g i n e i f y o u s e e o r h e a r s t e a m
coming from it.
Stop the vehicle in a safe location away from
other traffic. 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 310)
and a warning in the multifunction display
(
page 340).
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).

116 Controls in detailInstrument clusterTachometer
The red marking on the tachometer
(page 29) denotes excessive engine
speed.
To help protect the engine, the fuel supply
is interrupted if the engine is operated
within the red marking.
Outside temperature indicator
The outside temperature is displayed in
the left or right multifunction display
(page 117), depending on the setting for
the standard display (
page 132). The temperature sensor is located in the
front bumper area. Due to its location, the
sensor can be affected by road or engine
heat during idling or slow driving. There-
fore, the accuracy of the displayed temper-
ature can only be verified by comparison to
a thermometer placed next the sensor, not
by comparison to external displays, e.g.
bank signs, etc.
When moving the vehicle into colder ambi-
ent temperatures (e.g. when leaving your
garage), you will notice a delay before the
lower temperature is displayed.
A delay also occurs when ambient temper-
atures rise. This prevents inaccurate tem-
perature indications caused by heat
radiated from the engine during idling or
slow driving.
!
Avoid driving at excessive engine speeds, as
it may result in serious engine damage that is not
covered by the Mercedes-Benz Limited
Warranty.
Warning!
G
The outside temperature indicator is not de-
signed to serve as an ice-warning device and
is therefore unsuitable for that purpose.
Indicated temperatures just above the freez-
ing point do not guarantee that the road sur-
face is free of ice. The road may still be icy,
especially in wooded areas or on bridges.

121 Controls in detail
Control system
Menus, submenus and functions
Menu1
Menu2
Menu3
Menu4
Menu5
Menu6
Menu7
Standard display
722 S
1
1Only Mercedes-Benz SLR McLaren Roadster 722 S
AUDIO
Vehicle status
message memory
2
2The Vehicle status message memory menu is only displayed if there is a message stored.
Settings
Trip computer
Telephone
(page 122)
(page 123)
(page 127)
(page 128)
(page 129)
(page 139)
(page 141)
Commands/submenusDigital speedome-
ter/Outside tem-
perature
Engine oil tem-
perature
Selecting
radio station
Calling up vehicle
malfunction, warn-
ing and system sta-
tus messages
stored in memory
Resetting to fac-
tory settings
Fuel consumption
statistics since start
Loading
phone book
Calling up mainte-
nance service
display
Vehicle supply
voltage
Operating the
CD player
Instrument clus-
ter submenu
Fuel consumption
statistics since the
last reset
Searching for
name in
phone book
Checking tire
inflation pressure
RACETIMER
Time submenu
Resetting fuel con-
sumption statistics
Overall analysis
Lighting submenu
Distance to empty
Lap analysis
Vehicle submenu
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The headings used in the menus table are
designed to facilitate navigation within the sys-
tem and are not necessarily identical to those shown in the control system displays.
The first function displayed in each menu will automatically show you which part of the system
you are in.

123 Controls in detail
Control system
722 S menu
1
The main screen of the 722S menu shows
you the gear currently engaged as well as
the engine oil temperature.
Press button è or ÿ repeatedly
until you see the 722S menu.
1Engine oil temperature
2Gear indicatorUse buttons k or j to select the fol-
lowing functions in the 722S menu:Vehicle supply voltage

Press button è or ÿ repeatedly
until you see the 722S menu.

Press button j repeatedly until you
see the vehicle supply voltage.
1Vehicle supply voltage
2Gear indicator
1Only Mercedes-Benz SLR McLaren Roadster 722S.
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The engine oil temperature symbol flashes if
the engine oil temperature has not yet reached
80°C. During this time, avoid driving at full
engine speed.
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If the engine reaches the overspeed range
and you are driving in the manual shift
programMAN, the menu will be shown in red. In
addition, you will see
up
ext to gear
indicator2 as a reminder to upshift.
Function
Page
Vehicle supply voltage
123
RACETIMER
124
Overall analysis
126
Lap analysis
126