ContentsSafety and Security........................... 65
Occupant safety................................... 66
Air bags .......................................... 68
Occupant Classification System ..... 72
Seat belts ....................................... 77
Roll bar ........................................... 81
Children in the vehicle .................... 83
Panic alarm .......................................... 86
Activating ....................................... 86
Deactivating ................................... 86
Driving safety systems ......................... 87
ABS ................................................ 87
BAS ................................................ 89
ESP
®............................................... 89
Electro-hydraulic brake system ...... 92
Anti-theft systems................................ 96
Immobilizer..................................... 96
Anti-theft alarm system .................. 96
Tow-away alarm ............................. 98
Controls in detail............................. 101
Locking and unlocking ....................... 102
SmartKey ..................................... 102
SmartKey with KEYLESS-GO* ...... 105
Opening the doors from the
inside ........................................... 111
Opening the trunk ........................ 111
Closing the trunk.......................... 113
Valet locking ................................ 117
Trunk lid emergency release ........ 117
Power closing assist for trunk lid . 118
Automatic central locking ............ 119
Locking and unlocking from the
inside ........................................... 119
Seats ................................................. 121
Moving the seats forward and
backward ..................................... 121
Lumbar support............................ 121
Multicontour backrest* ................ 122
Seat heating ................................. 123
Seat ventilation* .......................... 125
Memory function ............................... 126
Storing positions into memory ..... 127
Recalling positions from memory . 127 Lighting ............................................ 128
Exterior lamp switch .................... 128
Corner-illuminating front fog
lamps ........................................... 132
Combination switch ..................... 133
Hazard warning flasher ................ 133
Interior lighting ............................ 134
Courtesy lighting .......................... 135
Trunk lamp ................................... 135
Instrument cluster ............................. 136
Adjusting instrument cluster
illumination .................................. 136
Coolant temperature gauge ......... 137
Trip odometer .............................. 137
Tachometer.................................. 138
Outside temperature indicator ..... 138
Control system .................................. 139
Multifunction display.................... 139
Multifunction steering wheel........ 140
Menus .......................................... 142
Standard display menu ................ 145
AMG menu ................................... 146
AUDIO menu ................................ 149
NAV menu .................................... 151
Distronic* menu .......................... 151
29 At a glance
Instrument cluster
Item
Page
5
Tachometer with:
138
AHigh beam head-
lamp indicator
133
úEngine malfunction
indicator lamp, USA
only
±Engine malfunction
indicator lamp,
Canada only
336
CRoll bar warning
lamp
340
-Antilock Brake Sys-
tem (ABS) indicator
lamp
334
1Supplemental
Restraint System
(SRS) indicator lamp
342
Item
Page
XCombination low tire
pressure/TPMS mal-
function telltale,
USA only
Low tire pressure
telltale*,
Canada only
343
6
Right multifunction
display with:
Gear selector lever
position
170
Outside temperature
display
138
Program mode
169
7
Fuel gauge with:AFuel reserve warning
lamp
339
32 At a glanceCenter consoleLower part
Item
Page
1
Gear selector lever for
automatic transmission
173
2
Parktronic system*
deactivation switch
228
3
Exterior rear view mirror
adjustment
47
4
ABC suspension tuning
button
225
5
Tow-away alarm switch
98
6
Retractable hardtop
open/close switch with
buttons for roll bar
199,
81
Item
Page
7
ABC vehicle level control
button
225
8
ESP
® switch
91
9
Thumbwheel for setting fol-
lowing distance for
Distronic*
221
a
Distance warning function*
on/off switch
224
b
Program mode selector
switch for automatic trans-
mission
177
66 Safety and SecurityOccupant safetyIn this section you will learn the most im-
portant facts about the restraint systems
of the vehicle.
The restraint systems are
Seat belts (
page 77)
Child restraints (
page 83)
Additional protection potential provided by
Supplemental Restraint System (SRS)
with
Air bags (
page 68)
Air bag control unit (with crash
sensors)
Emergency tensioning device (ETD)
for seat belts (
page 81)
Roll bar (
page 81)Air bag system components with
Front passenger front air bag off
indicator lamp (
page 76)
Front passenger seat with Occupant
Classification System (OCS)
(page 72)
Although independent systems, their pro-
tective functions work in conjunction with
each other.The SRS system conducts a self-test when
the ignition is switched on and in regular
intervals while the engine is running. This
facilitates detection of malfunctions. The
1
indicator lamp in the instrument clus-
ter comes on when the ignition is switched
on and goes out no later than a few sec-
onds after the engine has been started.
The SRS components are in operational
readiness if the
1
indicator lamp is not
lit when the engine is running.
A malfunction in the system has been
detected if the
1
indicator lamp:
fails to go out after approximately
4 seconds after the engine was started
does not come on at all
comes on after the engine was started
or while driving
i
For information on infants and children trav-
eling with you in the vehicle and restraint sys-
tems for infants and children, see “Children in
the vehicle” (
page 83).
81 Safety and Security
Occupant safety
Emergency tensioning device (ETD),
seat belt force limiter
The seat belts are equipped with emergen-
cy tensioning devices and belt force
limiters.
The ETD is designed to activate in the fol-
lowing cases:
in frontal or rear-end impacts exceed-
ing the system deployment threshold
if the restraint systems are operational
and functioning correctly, see 1 in-
dicator lamp (
page 66)
in certain vehicle rollovers if the sys-
tem determines an additional degree of
protectionWhen activated, emergency tensioning de-
vices remove slack from the belts in such a
way that the seat belts fit more snugly
against the body. Belt force limiters reduce
the force exerted by the seat belts on oc-
cupants during a crash.
Automatic comfort-fit feature seat belt
The automatic comfort-fit feature reduces
the retracting force of the seat belts when
they are in normal use.
Roll bar
i
The ETDs will only activate if the seat belts
are fastened (latch plate properly inserted into
buckle).
Warning!
G
An emergency tensioning device (ETD) that
was activated must be replaced.
When disposing of the emergency tension-
ing device, our safety instructions must be
followed. These are available at your autho-
rized Mercedes-Benz Center.
Warning!
G
This vehicle is a two occupant vehicle. The
rear storage area is not intended for use by
occupants and is not equipped for properly
seating or restraining occupants. Thus this
area should never be used by any persons.
Before operating the roll bar switch make
sure that the roll bar’s path is clear and no
persons are injured by the moving roll bar
due to inattention. Raising or lowering of the
roll bar could injure someone in it’s proximi-
ty.
For your own safety, we recommend to drive
with the roll bar raised if the outside temper-
ature is below +5°F (-15°C).!
If the outside temperature falls below +5°F
(-15°C), the roll bar must be raised manually us-
ing the buttons provided to avoid damaging the
hydraulics.
82 Safety and SecurityOccupant safetyThe roll bar raises automatically in an acci-
dent or in a critical driving situation. You
can also raise and lower the roll bar manu-
ally using the buttons provided.
The buttons for the roll bar are on the cen-
ter console under the retractable hardtop
switch.
1Raise roll bar
2Lower roll bar
The roll bar can be moved manually when
the ignition is switched on (
page 39).Raising the roll bar
Lift the switch for the retractable hard-
top.
Press and hold button1 until the roll
bar is raised.Lowering the roll bar
Lift the switch for the retractable hard-
top.
If the roll bar was raised manually:
Press and hold button2 until the roll
bar is lowered.
If the roll bar was raised automatically:
Press and hold button1 until you hear
the roll bar lock into place.
Press and hold button2 until the roll
bar is lowered.
i
When the roll bar is raised automatically,
you will hear a ratcheting sound.
Warning!
G
If the roll bar warning light in the ta-
chometer remains lit after starting the en-
gine, there is a malfunction. In the display
you see the message
Raise roll-over
bar
.
For safety reasons, drive only with the roll
bar upright until the malfunction is repaired.
Have your vehicle checked at an authorized
Mercedes-Benz Center.
i
If you have raised the roll bar manually using
the button, the roll bar will automatically be low-
ered and then raised again when you close and
open the retractable hardtop.
199 Controls in detail
Retractable hardtop
Retractable hardtop
Opening and closing the retractable hardtop
For safety reasons, the retractable hardtop
can only be opened and closed when the
vehicle is standing still.Warning!
G
To prevent possible accidents, only drive the
vehicle with the retractable hardtop either
completely closed and locked, or fully low-
ered into its storage compartment.
If the retractable hardtop does not com-
pletely open or close, the roof hydraulics will
lose pressure and the retractable hardtop is
lowered
after approximately 7 minutes when the
ignition is switched on
after approximately 15 seconds when
the ignition is switched off
Shortly before the retractable hardtop is
lowered, a warning will sound and in the left
multifunction display you will see K, in
the right multifunction display you will see
the message
being lowered
.
Lock the retractable hardtop again before
driving any further (
page 202). Otherwise,
the unlocked hardtop could open while the
vehicle is in motion and cause you to lose
control of the vehicle. You or others could
be injured as a result.
Warning!
G
Before operating the retractable hardtop
switch, make sure there is no danger of any-
one being injured by the moving parts (re-
tractable roof, roof frame, and trunk lid) due
to inattention.
Hands must never be placed near the roof
frame, upper windshield area, hardtop, shelf
behind roll bars, or trunk lid while the re-
tractable hardtop is being raised or lowered.
Serious personal injury may occur.
If potential danger exists, release the re-
tractable hardtop switch. This immediately
interrupts the raising or lowering procedure.
You then can operate the retractable hard-
top switch to raise or lower the retractable
hardtop away from the danger zone.
200 Controls in detailRetractable hardtop
Opening/closing with retractable
hardtop switch
The retractable hardtop switch is located
on the lower part of the center console.
Warning!
G
When leaving the vehicle, always remove the
SmartKey or the SmartKey with
KEYLESS-GO* 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. Unsu-
pervised use of vehicle equipment can
cause an accident and/or serious personal
injury.!
Never sit or place heavy objects on the rear
shelf. Doing so could cause damage to the re-
tractable hardtop and the rear shelf.
!
When opening and closing the retractable
roof, make sure
there is sufficient clearance for the retract-
able hardtop to move up and for the trunk lid
to move back
the luggage cover is installed, extended and
closed
the trunk is loaded only to the height of the
luggage cover
luggage/cargo does not push up the closed
luggage cover
the trunk lid is closed
the outside temperature is above +5°F
(–15°C)
the roof is dry and clean when opening
Otherwise the retractable hardtop and trunk as
well as other parts of the vehicle could be dam-
aged.
Warning!
G
Before operating the retractable hardtop,
make sure there is no danger of anyone
being injured by the moving parts (retract-
able roof, roof frame, and trunk lid) due to in-
attention.
Hands must never be placed near the roof
frame, upper windshield area, hardtop, shelf
behind roll bars, or trunk lid while the re-
tractable hardtop is being raised or lowered.
Serious personal injury may occur.
If potential danger exists, release retract-
able hardtop switch immediately. This im-
mediately interrupts the raising or lowering
procedure.