2009 MERCEDES-BENZ SLR engine

124 Controls in detailControl systemRACETIMER
The RACETIMER allows you to time and
save driving stretches in hours, minutes
and seconds.
Press button è or ÿ repeatedly
until you see the 722S menu.

Press button j repeatedly until you
see the RACETIMER.1Lap
2RACETIMER
3Gear indicatorStarting the RACETIMER

Press button æ.
The timer starts.
Displaying intermediate time

Press button ç while the timer is
running.
The intermediate time is shown for
5 seconds.
Stopping the RACETIMER

Press button æ.
The timer stops.
Warning!
G
The RACETIMER feature is only for use on
roads and in conditions where high speed
driving is permitted. Racing on public roads
is prohibited under all circumstances and
the driver is and must always remain
responsible for following posted speed
limits.
i
You can start the RACETIMER when the
engine is running or the starter switch is in
position2 (
page 40).
i
While the RACETIMER is being displayed,
you cannot adjust the volume using
buttonsæ or ç.
i
When you stop the vehicle and turn the
SmartKey to position 1 (
page 40), the RACE-
TIMER stops timing. Timing is resumed when you
switch the ignition back on (page 40) or
restart the engine (
page 47) and then press
the æbutton.

125 Controls in detail
Control system
Saving lap time and starting a new lap
Press button ç while the timer is
running.
The intermediate time will be shown for
5 seconds.

Press button ç within the next
5 seconds.
The intermediate time shown will be
saved as a lap time.
The RACETIMER begins timing the new
lap. The new lap begins to be timed as
soon as the intermediate time is called
up.1Best lap time
2Lap number
3RACETIMER
4Gear indicator
Resetting current lap

Press button æ while the timer is
running.
The timer stops.

Press button ç.
The lap time is reset to “0”.Deleting all laps

Press button æ while the timer is
running.
The timer stops.

Press the reset button in the instru-
ment cluster twice (
page 114).

Press button æ.
The timer starts. The saved laps are
deleted.
i
You can save up to nine laps.
i
It is not possible to delete a single saved lap.
i
When you switch off the engine, the
RACETIMER will be reset to“0” after 30 seconds.
All laps are deleted.

135 Controls in detail
Control system
Setting daytime running lamp mode
(USA only)
Move the selection marker with button
æ or ç to the
Lighting
sub-
menu.

Press button j or k repeatedly
until you see this message in the left
multifunction display:
Light Circuit
Headlamp Mode
.
The selection marker is on the current
setting.

Press buttonæ orç to select
manual operation (
Manual
) or daytime
running lamp mode (
Constant
)
activated.With daytime running lamp mode activated
and the exterior lamp switch in
positionM orU, the low-beam
headlamps are switched on when the
engine is running.
In low ambient light conditions the
following lamps will switch on additionally:


Parking lamps


Tail lamps


License plate lamps


Side marker lamps
For more information on the daytime
running lamp mode, see “Daytime running
lamp mode” (
page 108).Setting locator lighting
With the locator lighting feature activated
and the exterior lamp switch in
positionU, the following lamps will
switch on during darkness when the
vehicle is unlocked with the SmartKey:


Parking lamps


Tail lamps


License plate lamps


Side marker lamps


Front fog lamps
The locator lighting switches off when the
driver’s door is opened.
If you do not open a door after unlocking
the vehicle with the SmartKey the lamps
will switch off automatically after approxi-
mately 40 seconds.
i
This function is not available in countries
where the daytime running lamp mode is manda-
tory and therefore in a constant mode.
i
For safety reasons, resetting the
Lighting

submenu to factory settings while driving
(
page 129) will not deactivate the daytime
running lamp mode.
You see the following message in the right multi-
function display:
Cannot be fully reset to
factory settings while driving
.

136 Controls in detailControl system
Move the selection marker with button
æ or ç to the
Lighting

submenu.

Press button j or k repeatedly
until you see this message in the left
multifunction display: Locator Lighting
.
The selection marker is on the current
setting.

Press button æ or ç to switch
the locator lighting feature
On
or
Off
.

Turn the exterior lamp switch to
positionU when exiting the vehicle
(page 106).
The locator lighting feature is
activated.Setting night security illumination
(Headlamps delayed switch-off)
Use this function to set whether you would
like the exterior lamps to remain on for
15 seconds during darkness after exiting
the vehicle and closing the doors.
With the delayed shut-off feature activated
and the exterior lamp switch in
positionU before the engine is turned
off, the following lamps will switch on
when the engine is turned off:


Parking lamps


Tail lamps


License plate lamps


Side marker lamps


Front fog lamps
If, after turning off the engine, you do not
open a door or do not close an opened
door, the lamps will automatically switch
off after 60 seconds.

Move the selection marker with button
æ or ç to the
Lighting
sub-
menu.

Press button j or k repeatedly
until you see this message in the left
multifunction display: Headlamps Delayed Switch-off
.
The selection marker is on the current
setting.

Press button æ or ç to switch
the headlamps delayed shut-off feature On or
Off
.

Turn the exterior lamp switch to
positionU before turning off the
engine (
page 106).
The headlamps delayed switch-off
feature is activated.

139 Controls in detail
Control system
Setting automatic locking
Use this function to activate or deactivate
the automatic central locking. With the
automatic central locking system
activated, the vehicle is centrally locked at
vehicle speeds of approximately
9mph(15km/h).
Move the selection marker with button
æ or ç to the
Vehicle
submenu.

Press button j or k repeatedly
until you see the following message in
the left multifunction display: Automatic Door Lock
.
The selection marker is on the current
setting.

Press button æ or ç to switch Automatic Door Lock
On or
Off
.
Trip computer menu
Use the trip computer menu to call up
statistical data on your vehicle.
The following information is available:Fuel consumption statistics since start

Press button ÿ or è repeatedly
until you see the first function of the
trip computer menu.

Press button j or k repeatedly
until you see the following message in
the left multifunction display:
From
Start
.
1Distance driven since start
2Average speed since start
3Time elapsed since start
4Average fuel consumption since start
Function
Page
Fuel consumption statistics since
start
139
Fuel consumption statistics since
last reset
140
Resetting fuel consumption
statistics
140
Distance to empty
140
i
The last function called up will reappear the
next time you enter the trip computer menu.
i
All statistics stored since the last engine
start will be reset approximately 4 hours after
the SmartKey in the starter switch is turned to
position0 or removed from the starter switch.
Resetting will not occur if you turn the SmartKey
back to position1 or2 within this time period.

141 Controls in detail
Control system
TEL menu
You can use the functions in the
TEL
menu
to operate your telephone, provided it is
connected to a hands-free system and
switched on.

Switch on the telephone and the radio.

Press button ÿ or è on the
steering wheel repeatedly until you see
the
TEL
menu in the left multifunction
display.Which messages will appear in the right
multifunction display field depends on
whether your telephone is switched on or
off:


If the telephone is off, the message in
the multifunction display is:
TEL OFF
.


If the telephone is on:
The telephone will then search for a
network. During this time the right
multifunction display is empty.
As soon as the telephone has found a
network,
READY
is indicated in the right
multifunction display.
1Signal strength
This standby message indicates that your
telephone is ready for use and you can
operate it using the control system.
Warning!
G
A driver’s attention to the road must always
be his/her primary focus when driving. For
your safety and the safety of others, we rec-
ommend that you pull over to a safe location
and stop before placing or taking a tele-
phone call. If you choose to use the tele-
phone while driving, please use the
hands-free device and only use the tele-
phone when weather, road, and traffic con-
ditions permit.
Some jurisdictions prohibit the driver from
using a mobile telephone while driving a
vehicle.
Bear in mind that at a speed of just 30 mph
(approximately 50 km/h), your vehicle is
covering a distance of 44 feet
(approximately 14 m) every second.
Never operate radio transmitters equipped
with a built-in or attached antenna (i.e. with-
out being connected to an external antenna)
from inside the vehicle while the engine is
running. Doing so could lead to a malfunc-
tion of the vehicle’s electronic system, pos-
sibly resulting in an accident and/or
personal injury.

170 Controls in detailAutomatic transmission
Shifting procedure
The automatic transmission selects indi-
vidual gears automatically, depending on:

the gear selector lever drive position D
(page 171) with gear ranges
(page 174)


the selected shift program
(C/MAN/S)(
page 175)


the position of the accelerator pedal
(page 173)


the vehicle speed
The current gear selector lever position
(
P/R/N/D), the gear range (
1/2/3/4) and
the shift program (
C/M/S) are shown in the
standard display (
page 117).When the gear selector lever is in drive
positionD, you can influence transmission
shifting by:


limiting the gear range


changing gears manually
Warning!
G
It is dangerous to shift the gear selector
lever out of park positionP or neutral
positionN if the engine speed is higher than
idle speed. If your foot is not firmly on the
brake pedal, the vehicle could accelerate
quickly forward or reverse. You could lose
control of the vehicle and hit someone or
something. Only shift into gear when the
engine is idling normally and when your right
foot is firmly on the brake pedal.
!
Allow engine to warm up under low load use.
Do not place full load on the engine until the
operating temperature has been reached
(
page 311).
Shift into park position P or reverse gearR only
when the vehicle is stopped.
Avoid spinning of a drive wheel for an extended
period when driving off on slippery road
surfaces. This may cause serious damage to the
drivetrain which is not covered by the
Mercedes-Benz Limited Warranty.

171 Controls in detail
Automatic transmission
Gear selector lever positions
Effect
ì
Park position
Gear selector lever position
when the vehicle is parked. Place
gear selector lever in park
positionP only when vehicle is
stopped. The park position is not
intended to serve as a brake
when the vehicle is parked.
Rather, the driver should always
set the parking brake in addition
to placing the gear selector lever
in park positionP to secure the
vehicle.
The SmartKey can only be
removed from the starter switch
with the gear selector lever in
park positionP. With the
SmartKey removed, the gear
selector lever is locked in park
positionP.
Effect
í
Reverse gear
Place gear selector lever in re-
verse gearR only when vehicle is
stopped.
Effect
ë
Neutral
No power is transmitted from the
engine to the drive axle. When
the brakes are released, the
vehicle can be moved freely
(pushed or towed).
To avoid damage to the trans-
mission, never engage neutral
positionN while driving.
If the ESP
® is deactivated or
malfunctioning:
Move gear selector lever to neu-
tral positionN only if the vehicle
is in danger of skidding, e.g. on
icy roads.
ê
Drive position
The transmission shifts
automatically. All five forward
gears are available.