Page 45 of 425

44 Getting started
Adjusting
Interior rear view mirror
Manually adjust the rear-view mirror.
For more information, see “Rear view mir-
rors” (
page 182).
Exterior rear view mirrorsThe buttons are located on the lower part 
of the center console. 
1Driver’s side exterior rear view mirror 
button
2Passenger-side exterior rear view 
mirror button
3Adjustment button
Switch on the ignition (page 40).
Press button1 for the driver’s side 
exterior rear view mirror or button2 
for passenger-side exterior rear view 
mirror.
Push adjustment button3 up, down, 
left, or right according to the desired 
setting.
For more information, see “Rear view mir-
rors” (
page 182).
!Electrolyte drops coming into contact with 
the vehicle paint finish can be completely re-
moved only while in the liquid state and by 
applying plenty of water.
Warning!G
Exercise care when using the passen-
ger-side exterior rear view mirror. The mirror 
surface is convex (outwardly curved surface 
for a wider field of view). Objects in mirror 
are closer than they appear. Check your in-
terior rear view mirror or glance over your 
shoulder before changing lanes. 
iAt low ambient temperatures, the exterior 
rear view mirrors will be heated automatically. 
         
        
        
     
        
        Page 101 of 425

100 Controls in detail
Locking and unlocking
Global locking
Press button‹.
With the trunk and all doors closed, all 
turn signal lamps flash three times. The 
anti-theft alarm system is armed.
Selective setting
If you frequently travel alone, you may wish 
to reprogram the SmartKey so that 
pressingŒ only unlocks the driver’s 
door and the fuel filler flap.
Press and hold buttonsŒ and‹ 
simultaneously for about 5 seconds un-
til battery check lamp5 flashes twice.
The SmartKey will then function as 
follows:
Unlocking driver’s door and fuel filler 
flap
Press buttonŒ once.
All turn signal lamps flash once. The 
anti-theft alarm system is disarmed.Global unlocking
Press buttonŒ twice.
All turn signal lamps flash once. The 
anti-theft alarm system is disarmed.
Global locking
Press button‹.
With the trunk and all doors closed, all 
turn signal lamps flash three times. The 
anti-theft alarm system is armed.
Restoring to factory setting
Press and hold buttonsŒ and‹ 
simultaneously for about 6 seconds un-
til battery check lamp5 (
page 98) 
flashes twice.
!If you can no longer lock or unlock the vehi-
cle with the SmartKey, then either the batteries 
in the SmartKey are discharged, the SmartKey is 
malfunctioning or the vehicle battery is drained.
Check the batteries in the SmartKey 
(
page 101) and replace them if necessary 
(
page 357).
Use the mechanical key to unlock the vehicle 
(
page 355).
Have the vehicle battery and the battery con-
nections checked. Contact an authorized 
Mercedes-Benz Center.
If the SmartKey is malfunctioning, contact Road-
side Assistance or an authorized Mercedes-Benz 
Center. 
         
        
        
     
        
        Page 102 of 425

101 Controls in detail
Locking and unlocking
Unlocking and opening the trunk
You can unlock the trunk separately.
A minimum height clearance of 
5.5 ft (1.65 m) is required to open the 
trunk lid.
Press and hold buttonŠ until the 
trunk lid unlocks and opens slightly.
Checking the batteries
Press button ‹ or Œ.
Battery check lamp5 (
page 98) 
comes on briefly to indicate that the 
SmartKey batteries are in order.Loss of SmartKey or mechanical key
If you lose a SmartKey or mechanical key, 
you should do the following:
Have the SmartKey deactivated by an 
authorized Mercedes-Benz Center.
Report the loss of the SmartKey or the 
mechanical key immediately to your 
car insurance company.
If necessary, have the trunk lock 
replaced.
Your authorized Mercedes-Benz Center 
will be glad to supply you with a 
replacement. 
Opening the doors
Opening from the outside
For information on opening the doors from 
the outside, see “Getting started” 
(
page 38).
Opening from the inside
You can open a locked door from the in-
side. Open the door only if the vehicle is 
stationary and when conditions are safe to 
do so.
1Inside door handle
iIf battery check lamp5 does not come on 
briefly during check, then the SmartKey 
batteries are discharged.
Replace the batteries (
page 357). 
You can obtain the required batteries at any 
authorized Mercedes-Benz Center.
iIf the batteries are checked within signal 
range of the vehicle, pressing button‹ 
orŒ will lock or unlock the vehicle 
accordingly.  
         
        
        
     
        
        Page 103 of 425

102 Controls in detail
Locking and unlocking
Pull on door handle1.
The door swings outwards and up-
wards automatically.Opening the trunk
Opening the trunk from the outside
A minimum height clearance of 
5.5 ft (1.65 m) is required to open the 
trunk lid.
The handle is located above the rear 
license plate recess.
1Trunk lock
2Handle The vehicle must be unlocked.
Pull on handle2 and 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).
Opening the trunk from the inside
You can open the trunk from the inside if 
the vehicle is stationary. 
A minimum height clearance of 
5.5 ft (1.65 m) is required to open the 
trunk lid.
The switch is located on the lower part of 
the center console.
!Ensure sufficient side- and overhead clear-
ance prior to opening the doors, see “Main di-
mensions” (
page 387).
iIf the vehicle has previously been locked 
with the SmartKey, 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.
!Always make sure that there is sufficient 
overhead clearance. 
         
        
        
     
        
        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 119 of 425
118 Controls in detail
Control system
Multifunction steering wheel
The displays in the multifunction display 
and the settings in the control system are 
controlled by the buttons on the multi-
function steering wheel (
page 30).
1Left multifunction display in the 
speedometer
2Right multifunction display in the 
tachometer
Operating the control system
3Selecting the submenu or setting the 
volume:
Press button
æup/to increase
çdown/to decrease
4Telephone:
Press button
íto take a call
to dial
to redial
ìto end a call
to reject an incoming call
5Menu systems:
Press button
èfor next menu
ÿfor previous menu
6Moving within a menu:
Press button
jfor next display
kfor previous display 
         
        
        
     
        
        Page 120 of 425

119 Controls in detail
Control system
Depending on the selected menu, pressing 
the buttons on the multifunction steering 
wheel will alter what appears in the 
multifunction display.
The information available in the multifunc-
tion display is arranged in menus, each 
containing a number of functions or 
submenus.
The individual functions are then found 
within the relevant menu (radio or CD op-
erations under 
AUDIO, for example). These 
functions serve to call up relevant informa-
tion or to customize the settings for your 
vehicle.It is helpful to think of the menus, and the 
functions within each menu, as being 
arranged in a circular pattern.
If you press buttonè orÿ 
repeatedly, you will pass through each 
menu one after the other.
If you press buttonk orj 
repeatedly, you will pass through each 
function display, one after the other, in 
the current menu.In the 
Settings menu, instead of functions 
you will find a number of submenus for 
calling up and changing settings. For 
instructions on using these submenus, see 
“Settings menu” (
page 129).
The number of menus available in the sys-
tem depends on which optional equipment 
is installed in your vehicle.
The menus are described on the following 
pages. 
         
        
        
     
        
        Page 124 of 425

123 Controls in detail
Control system
722 Edition menu1
The main screen of the 722 Edition menu 
shows you the gear currently engaged as 
well as the engine oil temperature.
Press button è or ÿ repeatedly 
until you see the 722 Edition menu.
1Engine oil temperature
2Gear indicatorUse buttons k or j to select the fol-
lowing functions in the 722 Edition menu:
Vehicle supply voltage
Press button è or ÿ repeatedly 
until you see the 722 Edition menu.
Press button j repeatedly until you 
see the vehicle supply voltage.
1Vehicle supply voltage
2Gear indicator
1Only Mercedes-Benz SLR McLaren 722 Edition.
iThe 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.
iIf 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 next to gear 
indicator2 as a reminder to upshift.FunctionPage
Vehicle supply voltage123
RACETIMER124
Overall analysis126
Lap analysis126