110 Controls in detailLocking and unlockingGlobal locking using the lock button on
the trunk lid
1Lock button
Press lock button 1 on the trunk lid.
With the trunk and all doors closed, all
turn signals flash three times. The lock-
ing knobs in the doors move down.
The anti-theft alarm system is armed.
Checking the batteries
Press button ‹or Œ.
Battery check lamp5 (
page 106)
comes on briefly to indicate that the
SmartKey batteries are in order.Loss of SmartKey with KEYLESS-GO
If you lose your SmartKey with
KEYLESS-GO, you should do the following:
Have the SmartKey with KEYLESS-GO
deactivated by an authorized
Mercedes-Benz Center.
Report the loss of the SmartKey with
KEYLESS-GO or the mechanical key to
your car insurance company immedi-
ately.
Have the mechanical lock replaced if
necessary.
Your authorized Mercedes-Benz Center
will be glad to supply you with a replace-
ment.
i
Vehicles with KEYLESS-GO*: To prevent a
possible inadvertent lockout, the trunk lid will
open automatically if a SmartKey with
KEYLESS-GO is recognized inside the trunk.
When the hardtop is retracted, it must be com-
pletely lowered in the trunk before the trunk lid
can be closed (
page 242).
i
You can also lock the vehicle using the lock
button on an outside door handle (
page 64).
i
If battery check lamp5 (
page 106) does
not come on briefly during check, then the
SmartKey batteries are discharged.
Replace the batteries (
page 395).
You can obtain the required batteries at any
authorized Mercedes-Benz Center.
i
If the batteries are checked within signal
range of the vehicle, pressing the‹orŒ
button will lock or unlock the vehicle according-
ly.
111 Controls in detail
Locking and unlocking
Opening the doors from the inside
You can open a locked door from the in-
side. Open door only when conditions are
safe to do so.
1Locking knob
2Inside door handle
Pull on inside door handle2 in direc-
tion of arrow.
If the door was locked, locking knob1
will move up.
Opening the trunk
You can open the trunk if the vehicle is sta-
tionary and the retractable hardtop is fully
opened or closed.
A minimum height clearance of
6.2 ft (1.88 m) is required to open the
trunk lid.
i
If you open a door, the side windows on that
side of the vehicle will lower slightly. The win-
dows close again when you close the door.
i
If the vehicle has previously been locked
with the SmartKey or KEYLESS-GO*, 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.
Vehicles with KEYLESS-GO*:
Grasp an outside door handle.
The SmartKey with KEYLESS-GO must be
within 3 ft. (1 m) of the vehicle.
Press the KEYLESS-GO* start/stop button
(page 40).
The SmartKey with KEYLESS-GO must be in-
side the vehicle.
Warning!
G
Only drive with the trunk closed as, among
other dangers such as blocked visibility, ex-
haust fumes may enter the vehicle interior.i
If the trunk lid does not open, the trunk lid is
still locked separately (
page 117).
i
To facilitate trunk loading and unloading
when the hardtop is retracted, you can raise the
hardtop from its storage position in the trunk us-
ing the load assist feature (
page 241). You
may also unhook the luggage cover.
Remember to re-secure the luggage cover after
loading/unloading the trunk. Otherwise you will
not be able to lower the retractable hardtop.
116 Controls in detailLocking and unlockingVehicles without KEYLESS-GO*1Trunk closing switchVehicles with KEYLESS-GO*1Trunk closing switch
Press trunk closing switch1 briefly.
The trunk closes.
Closing trunk and locking vehicle from
outside (vehicles with KEYLESS-GO*)
In vehicles with trunk opening/closing sys-
tem* and KEYLESS-GO*, you can close the
trunk and lock the vehicle simultaneously
from the outside using the KEYLESS-GO
locking/closing switch.
1KEYLESS-GO locking/closing switch
Make sure you have the SmartKey with
KEYLESS-GO with you.
Press switch1 briefly.
With the doors closed, the locking
knobs in the doors move down and the
trunk starts to close automatically.
All turn signal lamps flash three times
to confirm locking once the trunk has
closed completely. The anti-theft alarm
system is activated.
250 Controls in detailUseful featuresRemote door unlock
In case you have locked your vehicle unin-
tentionally (e.g. SmartKey inside vehicle),
and the reserve SmartKey is not handy:
Contact the Mercedes-Benz Response
Center at 1-800-756-9018 (in the USA)
or 1-888-923-8367 (in Canada).
You will be asked to provide your pass-
word which you provided when you
completed the subscriber agreement.
Then return to your vehicle and pull the
trunk recessed handle for a minimum
of 20 seconds until the SOS button is
flashing.
The message
Call connected
appears
in the multifunction display.
As an alternative, you may unlock the vehi-
cle via Internet using the ID and password
sent to you shortly after the completion of
your acquaintance call.The Response Center will then unlock your
vehicle with the remote door unlocking
feature.Stolen Vehicle Recovery services
In the event your vehicle was stolen:
Report the incident to the police.
The police will issue a numbered
incident report.
Pass this number on to the
Mercedes-Benz Response Center along
with your password issued to you when
you subscribed to the service.
The Response Center will then attempt
to covertly contact the vehicle’s Tele
Aid system. Once the vehicle is locat-
ed, the Response Center will contact
the local law enforcement and you. The
vehicle’s location will only be provided
to law enforcement.
i
The remote door unlock feature is available
if the relevant cellular phone network is avail-
able.
The SOS button will flash and the message
Call
connected
will appear in the multifunction dis-
play to indicate receipt of the door unlock com-
mand.
Once the vehicle is unlocked, a Response Center
specialist will attempt to establish voice contact
with the vehicle occupants.
If the trunk recessed handle was pulled for more
than 20 seconds before door unlock authoriza-
tion was received by the Response Center, you
must wait 15 minutes before pulling the trunk re-
cessed handle again.
i
If the anti-theft alarm or the tow-away alarm
stays on for more than 30 seconds, a call to the
Response Center is initiated automatically by the
Tele Aid system provided Tele Aid service was
subscribed to and properly activated, and that
necessary cellular service and GPS coverage are
available. See anti-theft alarm system
(
page 96) and tow away alarm (
page 98).
391 Practical hints
Locking/unlocking in an emergency
Locking/unlocking in an emergency
Unlocking the vehicle
If you cannot unlock the vehicle using the
SmartKey or KEYLESS-GO*, unlock the
driver’s door and the trunk using the me-
chanical key.
1Mechanical key locking tab
2Mechanical key
Move locking tab 1 direction of arrow
and slide the mechanical key 2 out of
the housing.Unlocking the driver’s door
1Unlocking
2Mechanical key
Insert mechanical key 2 into the lock
until it stops.
Turn mechanical key 2 counterclock-
wise to position 1.
The driver’s door is unlocked. You can
now open the driver’s door.
i
Unlocking the vehicle with the mechanical
key and opening the driver’s door or the trunk
will trigger the anti-theft alarm system
(
page 96).
To cancel the alarm, insert the SmartKey or the
SmartKey with KEYLESS-GO* in the starter
switch.
393 Practical hints
Locking/unlocking in an emergency
Locking the vehicle
If you cannot lock the vehicle with the
SmartKey, lock it with the mechanical key
as follows:
Close the passenger door and the
trunk.
Press the central locking switch in the
center console (
page 119).
Check whether the locking knob on the
passenger door has moved down.
If necessary push it down manually.
Remove the mechanical key from of
the SmartKey (
page 391).
Check whether the trunk is locked.
If necessary, lock the trunk with the
mechanical key (
page 117).
Except for the driver’s door, the vehicle
should now be locked.1Locking
2Mechanical key
Insert mechanical key 2 (
page 391)
into the driver’s door lock until it stops.
Turn mechanical key 2 clockwise to
position 1.
The driver’s door is locked.
i
Unlocking the glove box with the mechanical
key will trigger the anti-theft alarm system. To
cancel the alarm, do one of the following:
Press button Œ or ‹ on the
SmartKey.
Insert the SmartKey in the starter switch.
Press the KEYLESS-GO* start/stop button
(page 40).
Grasp an outside door handle (vehicles with
KEYLESS-GO* only).
i
This procedure does not arm the anti-theft
alarm system, nor does it lock the fuel filler flap
and the storage compartments.
The storage compartments can be locked
separately (
page 235).
421 Practical hints
Towing the vehicle
Towing the vehicle
Mercedes-Benz recommends that the vehi-
cle be transported with all wheels off the
ground using flatbed or appropriate wheel
lift/dolly equipment.When circumstances do not permit the
recommended towing methods, the vehi-
cle may be towed with all wheels on the
ground or front wheels raised only so far as
necessary to have the vehicle moved to a
safe location where the recommended
towing methods can be employed.!
Use flatbed or wheel lift/dolly equipment
with SmartKey in starter switch turned to
position0.
Do not tow with sling-type equipment. Towing
with sling-type equipment over bumpy roads will
damage radiator and supports.
To prevent damage during transport, do not tie
down vehicle by its chassis or suspension parts.
Switch off the tow-away alarm and the automatic
central locking.
!
If the vehicle is towed with the front axle
raised, the gear selector lever must be in
positionN and the engine must be shut off
(SmartKey in starter switch position0 or1).
Otherwise, the ESP
® will immediately be en-
gaged and will apply the rear wheel brakes.
When towing the vehicle with all wheels on the
ground, the gear selector lever must be in
positionN and the SmartKey must be in starter
switch position2.
When towing the vehicle with all wheels on the
ground or the front axle raised, the vehicle
may be towed only for distances up to
30 miles (50 km) and at a speed not to exceed
30 mph (50 km/h).
To be certain to avoid a possibility of damage to
the transmission, however, we recommend the
drive shaft be disconnected at the rear axle drive
flange for any towing beyond a short tow to a
nearby garage.
Warning!
G
If circumstances require towing the vehicle
with all wheels on the ground, always tow
with a tow bar if:
the engine will not run
there is a malfunction in the
electro-hydraulic brake system
there is a malfunction in the power sup-
ply or in the vehicle’s electrical system
as that will be necessary to adequately con-
trol the towed vehicle.
Prior to towing the vehicle with all wheels on
the ground, make certain that the SmartKey
is in starter switch position2.
If the SmartKey is left in starter switch
position0 for an extended period of time, it
can no longer be turned in the switch. In this
case, the steering is locked. To unlock, re-
move SmartKey from starter switch and re-
insert.
453 Index
A
ABC 225
Messages in display 349
Oil level 279
ABS 87
Indicator lamp 29, 334
Messages in the multifunction
display 351, 352
Warning lamp 27, 332
Accelerator position, automatic
transmission 171
Accessory weight 312
Accident 59
Active Body Control see ABC
Air bags 68
Children in the vehicle 83
Front 71
Front passenger front air bag off
indicator lamp 76
Head-thorax 72
Knee bag 72
Occupant Classification System
(OCS) 72
Passenger 72
Air conditioning system see Automatic cli-
mate control systemAir distribution 188, 189
Air pressure 312
Tire inflation pressure 291
Air pump 410
Air recirculation mode 191
Air vents 185
Air volume 188, 190
Alarm system see Anti-theft systems
Alignment bolt (vehicle tool kit) 409
Anticorrosion/antifreeze 445, 451
Antiglare, Interior rear view mirror 180
Antilock Brake System see ABS
Anti-theft systems
Anti-theft alarm system 96
Immobilizer 96
Tow-away alarm 98
Aquaplaning see Hydroplaning
Armrest 234
Ashtray 31, 239
Aspect ratio 312
ATF 279
Auto-dimming, Rear view mirrors 180
Automatic central locking 119
Control system 162Automatic climate control system 184
Air conditioning, Cooling 193
Air conditioning refrigerant 446
Air distribution 188, 189
Air recirculation mode 191
Air vents 185
Air volume 188, 190
Control panel 185
Deactivating system 187
Defrosting 183, 190
Residual heat utilization 194
Temperature 188
Temperature sensor 33
Ventilated glove box 195
Automatic lighting control, Interior
lighting 135
Automatic locking when driving 119
Automatic shift program 173
Automatic transmission 168
Accelerator position 171
Comfort program mode 173
Emergency operation
(Limp-Home Mode) 179
Gear ranges 172
Gear selector lever 32, 168
Gear selector lever position 168, 170