2007 MERCEDES-BENZ CLK550 COUPE Starter

99 Controls in detail
Locking and unlocking
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 personal injury.
iWhen you open a door, the side window on
that side lowers slightly. Once you close the
door, the window moves up again.
!The side windows will not open or close if
the battery is discharged or the windows are cov-
ered with ice. As a result, you may no longer be
able to properly close the door. Do not attempt
to force the door shut. Doing so may damage the
door or the side window. Correct the condition
that prevents the windows from operating before
attempting to close the door.
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
received, 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
received, 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 windows
(
page 248) and the tilt/sliding sunroof*
(
page 251) using the SmartKey.
!If you can no longer lock or unlock the vehi-
cle with the SmartKey, then the batteries in the
SmartKey are discharged, the SmartKey is mal-
functioning or the vehicle battery is drained.

Check the batteries in the SmartKey
(
page 107) and replace them if necessary
(
page 404).

Use the mechanical key to unlock the driv-
er’s door (
page 399) and the trunk
(
page 400).

Use the mechanical key to lock the driver’s
door (
page 400) and the trunk
(
page 117).

Have the vehicle battery and the battery con-
nections checked (
page 421).
If the SmartKey is malfunctioning, contact
Roadside Assistance or an authorized
Mercedes-Benz Center.

100 Controls in detail
Locking and unlocking
Factory setting
Global unlocking
Press buttonŒ.

All turn signal lamps flash once.

An acoustic signal sounds once.

The locking knobs in the doors
move up.

The anti-theft alarm system is dis-
armed.
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
Global locking
Press button‹.
With the trunk and both doors closed:

All turn signal lamps flash three
times.

An acoustic signal sounds three
times.

The locking knobs in the doors
move down.

The anti-theft alarm system is
armed.
Selective setting
If you frequently travel alone, you may wish
to reprogram the SmartKey so that press-
ing buttonŒ 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 (
page 98)
flashes twice.
The SmartKey will then function as fol-
lows:
Unlocking driver’s door and fuel filler
flap
Press buttonΠonce.

All turn signal lamps flash once.

An acoustic signal sounds once.

The locking knob in the driver’s
door move up.

The anti-theft alarm system is dis-
armed.
Global unlocking
Press buttonΠtwice.

All turn signal lamps flash once.

An acoustic signal sounds once.
iWhen unlocking or locking the vehicle with
the SmartKey an acoustic signal sounds. The
acoustic signal is activated at the factory. If you
wish to deactivate the feature, or adjust its signal
volume, contact an authorized Mercedes-Benz
Center.

104 Controls in detail
Locking and unlocking

with the starter switch position1,
the message:
Key not detected
appears in the multifunction display

with the engine running, the
message:
Key not detected
appears in the multifunction display
while driving off.
Find the SmartKey with KEYLESS-GO or
change its present location immediate-
ly (e.g. place it on the front passenger
seat or insert it in shirt pocket).

If you have started the engine with the
KEYLESS-GO start/stop button
(
page 37), you can turn it off again
with:

the KEYLESS-GO start/stop button

the SmartKey inserted in the starter
switch, when the gear selector le-
ver is in positionP

Remember that the engine can be
started by anyone with a SmartKey
with KEYLESS-GO that is left inside the
vehicle.
Possibility 1:
(One SmartKey with KEYLESS-GO in
the vehicle, one SmartKey with
KEYLESS-GO outside the vehicle):
If you leave the SmartKey with
KEYLESS-GO behind when exiting and
locking the vehicle, no message ap-
pears in the multifunction display.
Possibility 2:
(One SmartKey with KEYLESS-GO in
the vehicle, no SmartKey with
KEYLESS-GO outside the vehicle):
When exiting and trying to lock the ve-
hicle, the message
Key detected in vehicle
will appear in the multifunction display.
The vehicle will not be locked.Factory setting
Global unlocking
Pull an outside door handle (SmartKey
with KEYLESS-GO must be near this
door).

All turn signal lamps flash once.

An acoustic signal sounds once.

The locking knobs in the doors
move up.

The anti-theft alarm system is dis-
armed.
iWhen unlocking or locking the vehicle with
the SmartKey with KEYLESS-GO an acoustic sig-
nal sounds. The acoustic signal is activated at
the factory. If you wish to deactivate the feature,
or adjust its signal volume, contact an authorized
Mercedes-Benz Center.
iIf the vehicle has been parked for a longer
period of time, you must pull an outside door
handle in order to activate the KEYLESS-GO
function.

108 Controls in detail
Locking and unlocking
Opening the doors from the inside
You can open a locked door from the in-
side. Open doors only when conditions are
safe to do so.
1Locking knob
2Inside door handlePull on door handle2.
If door was locked, locking knob1 will
move up.iIf 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:
With the SmartKey

Insert the SmartKey in the starter switch.

Press button‹orŒ on the
SmartKey.
With KEYLESS-GO*

Press the KEYLESS-GO* start/stop button
(
page 37).
The SmartKey with KEYLESS-GO* must be
inside the vehicle.

Pull an outside door handle.
The SmartKey with KEYLESS-GO* must be
within 3 ft (1 m) of the vehicle.
iIf you hear a warning signal you have forgot-
ten to switch off the headlamps before opening
the driver’s door.
In addition the message
Turn off lamps ap-
pears in the multifunction display. Vehicles with
KEYLESS-GO*, this message is only displayed
for approximately 1 second. It is then overwrit-
ten by the message,
Please do not forget
key
.
Switch off the headlamps.
iIf 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.

112 Controls in detail
Locking and unlocking
Closing the trunk from the outside
manually
1Handle
2Handles
Lower trunk lid by pulling firmly on
handle1 or handles2.
Close trunk from the outside with
hands placed flat on the trunk lid.
Warning!G
To prevent possible personal injury, always
keep hands and fingers away from the trunk
lid opening when closing the trunk. Be espe-
cially careful when small children are
around.
When leaving the vehicle, always remove the
SmartKey or SmartKey with KEYLESS-GO*
from the starter switch, take it with you, and
lock the vehicle. Do not leave children unat-
tended 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
personal injury.
Warning!G
Only drive with the trunk closed as, among
other dangers such as blocked visibility,
exhaust fumes may enter the vehicle
interior.
iDo not place the SmartKey in the open
trunk. You may lock yourself out.
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 vehi-
cle or in the trunk.
iIf the vehicle was previously centrally
locked, the trunk will lock automatically after
closing it (
page 111). All turn signal lamps
flash three times, and an acoustic signal sounds
three times, to confirm locking.

113 Controls in detail
Locking and unlocking
Closing the trunk from the outside
(vehicles without KEYLESS-GO*)
In vehicle with trunk opening/closing sys-
tem* you can close the trunk separately.
1Trunk closing switch
Press trunk closing switch1 briefly.
The trunk closes.
If the trunk lid comes into contact with an
object while closing (e.g. luggage that has
been piled too high), the closing procedure
is stopped and the trunk reopens slightly.
iYou can also close the trunk by hand
(
page 112).
Warning!G
Monitor the closing procedure carefully to
ensure that no one is in danger of being in-
jured. To prevent possible personal injury,
always keep hands and fingers away from
the trunk opening when closing the trunk.
Be especially careful when small children
are around. To stop the closing procedure,
do one of the following:

press trunk closing switch1

press the Š button on the SmartKey

press the remote trunk opening or clos-
ing switch (on driver’s door)
Even with the SmartKey removed from the
starter switch, the trunk closing switch can
be operated. Therefore, do not leave chil-
dren unattended in the vehicle, or with ac-
cess to an unlocked vehicle.Unsupervised
use of vehicle equipment may cause an ac-
cident and/or serious personal injury.
Warning!G
Only drive with the trunk closed as, among
other dangers such as blocked visibility,
exhaust fumes may enter the vehicle
interior.
iDo not place the SmartKey in the open
trunk. You may lock yourself out.
iIf the vehicle was previously centrally
locked, the trunk will lock automatically after
closing it (
page 111). All turn signal lamps
flash three times, and an acoustic signal sounds
three times, to confirm locking.

116 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 117).
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 37).
The SmartKey with KEYLESS-GO* must be
inside the vehicle.

118 Controls in detail
Locking and unlocking
Automatic central locking
The doors and the trunk automatically lock
when the ignition is switched on and the
wheels are turning at vehicle speeds of
approximately 9 mph (15 km/h) or more.
You can open a locked door from the
inside. Open doors only when conditions
are safe to do so.
You can deactivate the automatic locking
mode using the control system, see “Set-
ting automatic locking” (
page 162).
Locking and unlocking from the inside
You can lock or unlock the doors and the
trunk from inside using the central locking
or unlocking switch. This can be useful, for
example, if you want to lock the vehicle
before starting to drive.
You cannot lock or unlock the fuel filler flap
with the central locking or unlocking
switch.iThe doors unlock automatically after an ac-
cident if the force of the impact exceeds a preset
threshold.
To prevent the vehicle door locks from locking,
deactivate the automatic central locking when
the vehicle

is pushed or towed

is on a test stand
Warning!G
When leaving the vehicle, always remove the
SmartKey or SmartKey with KEYLESS-GO*
from the starter switch, take it with you, and
lock the vehicle. Do not leave children unat-
tended in the vehicle, or with access to an
unlocked vehicle. A child’s unsupervised ac-
cess to a vehicle could result in an accident
and/or serious personal injury.