2008 MERCEDES-BENZ CLK550 alarm

117 Controls in detail
Locking and unlocking
Trunk emergency release
With the emergency release button, the
trunk can be opened from inside the trunk.
The emergency release button is located
on the inside of the trunk lid.
1Emergency release button
Briefly press emergency release
button1.
The trunk unlocks and opens slightly.
Push up the trunk lid to fully open.Illumination of the emergency release but-
ton:

The button will flash for 30 minutes
after opening the trunk.

The button will flash for 60 minutes
after closing the trunk.
iThe emergency release button unlocks and
opens the trunk while the vehicle is standing still
or in motion.
iThe emergency release button does not
open the trunk if the vehicle battery is dis-
charged or disconnected.
iIf the trunk does not open, it is still locked
separately (
page 118).
iIf the vehicle has previously been locked us-
ing the SmartKey or KEYLESS-GO*, opening the
trunk from the inside using the emergency re-
lease button will trigger the anti-theft alarm sys-
tem.
To cancel the alarm, do one of the following:

Insert the SmartKey in the starter switch.

Press button‹orŒ on the
SmartKey.
In vehicles with KEYLESS-GO*:

Pull 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 39).
The SmartKey with KEYLESS-GO* must be
inside the vehicle.

295 Controls in detail
Useful features
Tele Aid
The Tele Aid system
(Tele
matic Alarm Identification on
D
emand)
The Tele Aid system consists of three
types of response:

automatic and manual emergency

roadside assistance and

informationThe Tele Aid system is operational provid-
ing that the vehicle’s battery is charged,
properly connected, not damaged and
cellular and GPS coverage is available.
The speaker volume of a Tele Aid call can
be adjusted when using the volume control
on the multifunction steering wheel. To
raise, press buttonæ and to lower,
press buttonç. The volume can also be
adjusted using the volume knob on your
audio system or COMAND* head unit.
To activate, press the SOS button, the
Roadside Assistance button• or
the Information button¡, depend-
ing on the type of response required.Shortly after the completion of your
Tele Aid acquaintance call, you will receive
a user ID and password. By visiting
www.mbusa.com and selecting “Tele Aid”
(USA only), you will have access to account
information, remote door unlock and
more.
System self-check
Initially, after switching on the ignition,
malfunctions are detected and indicated
(the indicator lamps in the SOS button, the
Roadside Assistance button• and the
Information button¡ stay on longer
than 10 seconds or do not come on).
The message
Tele Aid Inoperative ap-
pears in the multifunction display.
!The initial activation of the Tele Aid system
may only be performed by completing the sub-
scriber agreement and placing an acquaintance
call using the¡ button. Failure to complete
either of these steps will result in a system that
is not activated.
If you have any questions regarding activation,
please call the Response Center at
1-800-756-9018 (in the USA) or
1-888-923-8367 (in Canada).
iThe SOS button is located in the overhead
control panel (
page 33).
The Roadside Assistance button• and the
Information button¡ are located in the cen-
ter armrest below the cover (
page 287).
iThe Tele Aid system utilizes the cellular net-
work for communication and the GPS (G
lobal Po-
sitioning S
ystem) satellites for vehicle location. If
either of these signals is unavailable, the
Tele Aid system may not function and if this oc-
curs, assistance must be summoned by other
means.

301 Controls in detail
Useful features
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
located, the Response Center will
contact the local law enforcement and
you. The vehicle’s location will only be
provided to law enforcement.
If you have any questions, please call the
Response Center at 1-800-756-9018 (in
the USA) or 1-888-923-8367 (in Canada).
Garage door opener*
The integrated remote control is capable of
operating up to three separately controlled
devices. It provides a convenient way to re-
place up to three hand-held remote con-
trols used to operate devices such as
garage door openers, gate openers, or oth-
er devices compatible with HomeLink
® or
some other systems.
Before the integrated remote control can
be used, it must be programmed to the ga-
rage door opener, gate operator or other
device you wish to operate. See the follow-
ing instructions for programming
information.
iThe remote door unlock feature is available
if the relevant cellular phone network is avail-
able.
The SOS button will flash and the message
Connecting Call will appear in the multifunc-
tion display to indicate receipt of the door unlock
command.
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
recessed handle again.
iWhen the anti-theft alarm stays on for more
than 30 seconds, a call is initiated automatically
to the Response Center, see “Anti-theft alarm
system” (
page 97).

427 Practical hints
Unlocking/locking in an emergency
Unlocking/locking in an emergency
Unlocking the vehicle
If you are unable to unlock the vehicle with
the SmartKey or KEYLESS-GO*, open the
driver’s door and the trunk using the
mechanical key.
1Mechanical key locking tab
2Mechanical key
Move locking tab1 in the direction of
arrow.
Slide mechanical key2 out of the
housing.Unlocking the driver’s doorInsert the mechanical key2 into the
driver’s door lock until it stops.
Turn the mechanical key2 counter-
clockwise to position1 until the lock-
ing knob moves up.
The driver’s door is unlocked.
Pull the door handle to open the
driver’s door.
iUnlocking and opening the driver’s door
and/or the trunk 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.
Vehicles with KEYLESS-GO*:

Pull the outside door handle.

Press the KEYLESS-GO* start/stop button
(
page 39).
1Unlocking
2Mechanical key

429 Practical hints
Unlocking/locking in an emergency
Insert the mechanical key2 into the
driver’s door lock until it stops.
Turn the mechanical key2 clockwise
to position1.
The driver’s door is locked.Manually unlocking the gear selector
lever
In case of power failure, the gear selector
lever can be manually unlocked, e.g. to tow
the vehicle.
1Tab
2tool (e.g. flat blade screwdriver)
Pull the tab1 of the covering back in
direction of the center armrest com-
partment.
Insert a tool2 (e.g. flat blade screw-
driver) into the opening.
Perform the following two steps simul-
taneously:
Push tool2 down- and forward in
the direction of the arrow.
Move gear selector lever from
positionP.
Remove the tool2 from the opening.
Push the tab1 of the covering back.
1Locking
2Mechanical key
iThis procedure does not arm the anti-theft
alarm system, nor does it lock the fuel filler flap.
iThe gear selector lever is locked again when
moving it to positionP.

497 Index
A
ABS 29, 90
Malfunction indicator lamp 378
Messages in display 394
Accelerator position,
automatic transmission 176
Accessory weight 358
Accident 58
Active head restraints 81
Resetting 440
Air bags 65
Children 83
Front passenger front
air bag off indicator lamp 76
Front side impact air bags 70
Front, Driver 70
Front, Passenger 70
Head-thorax 71
Occupant Classification System
(OCS) 72
Rear side impact air bags* 70
Rear side-impact* 72
Safety guidelines 68
Window curtain 70
Air conditioning refrigerant 491Air conditioning system
see Climate control system
Air conditioning, Cooling 198, 210
Air distribution 194, 205
Air pressure see Tires, Inflation pressure
Air recirculation mode 196, 207
Air vents 199, 212
Air volume 194, 206
Alarm system see Anti-theft systems
Alignment bolt
(vehicle tool kit) 422, 460, 461
AMG menu (CLK 63 AMG only) 148
Lap analysis 151
Overall analysis 150
RACETIMER 149
Vehicle supply voltage 148
Anticorrosion/antifreeze 494, 495
Antiglare, Rear view mirror 185, 186
Antilock Brake System see ABS
Anti-theft systems 97
Anti-theft alarm system 97
Immobilizer 97
Aquaplaning see Hydroplaning
Armrest 287
Ashtrays 289
Aspect ratio 358ATF 327
AUDIO menu 151
CD player (CD, MP3-CD) 152
Radio station 151
Radio station (satellite*) 152
Search function 165
Audio system 213
Button and soft key operation 216
CD changer* 232
CD operation 229
Emergency calls "911" 248
MP3 230
Operating and display elements 214
Operating audio system 213
Operating safety 213
Radio operation 221
Sound system* 213, 217
Switching on/off 216
Telephone* operation 213, 236
Auto-dimming, Rear view mirror 186
Automatic central locking,
Control system 118, 166
Automatic climate control
see Climate control system
Automatic headlamp mode see Headlamps

509 Index
O
Occupant Classification System see OCS
Occupant distribution 359
Occupant safety 64
Active head restraints 81
Air bags 65
Children and air bags 83
Children in the vehicle 83
ETD 80
Fastening the seat belts 48
Front air bags 70
Front passenger front air bag off
indicator lamp 76, 390
Front side impact air bags 70
Head-thorax air bags 71
Infant and child restraint systems 83
LATCH-type child seat anchors 87
OCS 72
Rear side impact air bags* 70
Rear side-impact air bags* 72
Roll bars 82
Seat belts 48, 77
Seat belts, safety guidelines 68
SRS 64
Window curtain air bags 70OCS 72
Self-test 76
Odometer 29
Oil level see Engine oil, checking level
One-touch gearshifting
Gear selector lever 179
Steering wheel
gearshift control* 180
Operating safety 213
Operating the vehicle outside the
USA or Canada 13
Ornamental moldings, Cleaning 372
Outside temperature see Displays
Overdue maintenance service 365
Overhead control panel 33P
Paintwork code 478
Paintwork, Cleaning 368
Panic alarm 89
Parcel net
Front passenger footwell 286
Parking 59, 312
Over combustible materials 59, 312
Parking assist* see Parktronic system*
(CLK 63 AMG (USA), Canada all vehicles)
Parking brake 53, 59
Message in display 404
Warning sounds 54
Parking lamps 129
Messages in display 412
Replacing bulbs 444, 447, 448
Parktronic system* (Canada only)
Malfunction 274
Range of the sensors 272
Switching on/off 274
Warning indicators 273
Warning sounds 273, 274
Parktronic system* (CLK 63 AMG (USA),
Canada all models) 271
Cleaning system sensors 372
Parts service 476