Page 92 of 425
91 Safety and Security
Performance enhancement system
Automatic mode
This mode should be used for normal driv-
ing conditions.
Slide the Airbrake switch4 to
position2.
With the ignition switched on, the
Airbrake swivels upwards to an angle
of 5° and then returns to its initial
position.
Mercedes-Benz SLR McLaren:
When the vehicle exceeds a speed of
60 mph (95 km/h), the Airbrake wing
swivels up to an angle of 10°.
Mercedes-Benz SLR McLaren
722 Edition:
When the vehicle exceeds a speed of
75 mph (120 km/h), the Airbrake wing
swivels up to an angle of 15°. Rapid braking
During hard braking at a speed of more
than 60 mph (95 km/h), the Airbrake auto-
matically swivels up to an angle of 60°.
This allows you to achieve the best possi-
ble braking performance in an emergency.
Warning!G
Hard braking activates the Airbrake which
may block the view through the interior rear
view mirror. In this case, monitor the traffic
behind you through the exterior rear view
mirrors.
Page 100 of 425

99 Controls in detail
Locking and unlocking
Factory setting
Global unlocking
Press buttonŒ.
All turn signal lamps flash once. The
anti-theft alarm system is disarmed.
The vehicle will lock again automatically
and rearm the anti-theft alarm system
within approximately 40 seconds of
unlocking if:
neither door nor trunk is opened
the SmartKey is not inserted in the
starter switch
the central locking switch is not
activated
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 interfer-
ence, and
(2) this device must accept any interference re-
ceived, 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 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.
iYou can also open and close the power win-
dows using the SmartKey, see “Summer opening
feature” (
page 201) and “Convenience clos-
ing feature” (
page 202).
When you unlock the vehicle, the
electro-hydraulic brake system is activated.
Page 104 of 425

103 Controls in detail
Locking and unlocking
1Remote trunk opening switch
Press switch1 until the trunk lid
unlocks and opens slightly.
Lift the trunk lid.
The trunk can also be opened using
buttonŠ on the SmartKey or from its
inside in an emergency, see “Trunk emer-
gency release” (
page 104).
Closing the trunk lid
1Handle
Lower trunk lid by firmly pulling on
handle1.
!Always make sure that there is sufficient
overhead clearance.
Warning!G
To prevent possible personal injury, always
keep hands and fingers away from the trunk
opening when closing the trunk lid. Be espe-
cially careful when small children are
around.
Make sure the trunk is closed when the en-
gine is running and while driving. Among
other dangers, such as blocked visibility,
exhaust fumes may enter the vehicle
interior. These fumes are damaging to your
health.
!Do not pull on the Airbrake. Otherwise the
Airbrake could be damaged.
iDo not place the SmartKey in the open
trunk. You may lock yourself out.
If the vehicle was previously centrally locked, the
trunk lid will lock automatically after closing it.
All turn signals will flash three times to confirm
locking.
Page 170 of 425

169 Controls in detail
Automatic transmission
Automatic transmission
For information on driving with an auto-
matic transmission, see the “Getting
started” section (
page 47).
Your vehicle’s transmission adapts its gear
shifting process to your individual driving
style by continually adjusting the shift
points up or down. These shift point adjust-
ments are performed based on current
operating and driving conditions.
If the operating conditions change, the
automatic transmission reacts by
adjusting its gear shift program.
Gear selector lever
The gear selector lever is located on the
lower part of the center console.
Gearshift pattern for automatic
transmission
P Park position
R Reverse gear
N Neutral
D Drive position
iDuring the brief warm-up, transmission up-
shifting is delayed. This allows the catalytic con-
verter to heat up more quickly to operating
temperature.
Warning!G
Make sure that absolutely no objects are ob-
structing the pedals’ range of movement.
Keep the driver’s footwell clear of all obsta-
cles. If there are any floormats or carpets in
the footwell, make sure that the pedals still
have sufficient clearance.
During sudden driving or braking maneuvers
the objects could get caught between the
pedals. You could then no longer brake or
accelerate. This could lead to accidents and
injury.
iThe current gear selector lever positionP,
R,N orD appears in the right multifunction
display (
page 117).
Page 171 of 425

170 Controls in detail
Automatic 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 neutralN 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 307).
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.
Page 172 of 425

171 Controls in detail
Automatic transmission
Gear selector lever positions
Effect
ìPark 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
íReverse gear
Place gear selector lever in
positionR only when vehicle is
stopped.
Effect
ëNeutral
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 engageN while
driving.
If the ESP
® is deactivated or
malfunctioning:
Move gear selector lever to
neutralN only if the vehicle is in
danger of skidding, e.g. on icy
roads.
êDrive position
The transmission shifts
automatically. All five forward
gears are available.
Page 173 of 425

172 Controls in detail
Automatic transmission
!Coasting the vehicle, or driving for any other
reason with gear selector lever in neutralN can
result in transmission damage that is not cov-
ered by the Mercedes-Benz Limited Warranty.Warning!G
Getting out of your vehicle with the gear
selector lever not fully engaged in park
positionP is dangerous. Also, park
positionP alone is not intended to or capa-
ble of preventing your vehicle from moving,
possibly hitting people or objects.
Always set the parking brake in addition to
shifting to park positionP (
page 55).
When parked on an incline, turn the front
wheels towards the road curb.
Do not park this vehicle in areas where
combustible materials such as grass, hay or
leaves can come into contact with the hot
exhaust system, as these materials could be
ignited and cause a vehicle fire.
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. Children
could move the gear selector lever from
park positionP, which could result in an
accident and/or serious personal injury.
Page 174 of 425

173 Controls in detail
Automatic transmission
Driving tips
Accelerator position
Your driving style influences the
transmission’s shifting behavior:
Less throttle Earlier upshifting
More throttle Later upshifting
Kickdown
Use kickdown when you want maximum
acceleration.
Press the accelerator past the point of
resistance.
Depending on the engine speed the
transmission shifts into a lower gear.
Ease on the accelerator when you have
reached the desired speed.
The transmission shifts up again.Stopping
When you stop briefly, e.g. at traffic lights:
Leave the transmission in gear.
Hold the vehicle with the brake.
When you stop longer with the engine
idling and/or on a hill:
Set the parking brake.
Move the gear selector lever to park
positionP.Maneuvering
When you maneuver in tight areas,
e.g. when pulling into a parking space:
Control the vehicle speed by gradually
releasing the brakes.
Accelerate gently.
Never abruptly step on the accelerator.
Working on the vehicle
iKickdown in manual shift program MAN is
not possible.
In kickdown operation, it is not possible to
change gear with the steering wheel gear shift
buttons.
Warning!G
When working on the vehicle, set the
parking brake and move gear selector lever
to positionP. Otherwise the vehicle could
roll away.