child lock MERCEDES-BENZ CLK550 2008 C209 User Guide

83 Safety and Security
Occupant safety
Children in the vehicle
If an infant or child is traveling with you in
the vehicle:
Secure the child using an infant or child
restraint appropriate to the age and
size of the child.
Make sure the infant or child is proper-
ly secured at all times while the vehicle
is in motion.
Infant and child restraint systems
We recommend all infants and children be
properly restrained at all times while the
vehicle is in motion.All lap-shoulder belts except the driver’s
seat belt have special seat belt retractors
for secure fastening of child restraints.
To fasten a child restraint, follow child
restraint instructions for mounting. Then
pull the shoulder belt out completely and
let it retract. During seat belt retraction, a
ratcheting sound can be heard to indicate
that the special seat belt retractor is acti-
vated. The belt is now locked. Push down
on child restraint to take up any slack.
To deactivate, release seat belt buckle and
let seat belt retract completely. The seat
belt can again be used in the usual
manner.
Warning!G
Do not leave children unattended in the
vehicle, even if they are secured in a child
restraint system. The children could

injure themselves on parts of the vehicle

be seriously or fatally injured through
excessive exposure to extreme heat or
cold
If children open a door, they could

injure other persons

get out of the car and injure themselves
or be injured by oncoming traffic
Do not expose the child restraint system to
direct sunlight. The child restraint system’s
metal parts, for example, could become very
hot, and the child could be burned on these
parts.
Do not carry heavy or hard objects in the
passenger compartment or trunk unless
they are firmly secured in place. For more in-
formation, see “Loading” (
page 275), and
see “Useful features” (
page 285) in the
“Controls in detail” chapter.
Unsecured or improperly positioned cargo
increases a child’s risk of injury in the event
of

strong braking maneuvers

sudden changes of direction

an accidentWarning!G
Never release the seat belt buckle while the
vehicle is in motion, since the special seat
belt retractor will be deactivated.

86 Safety and Security
Occupant safety
Installation of infant and child restraint
systems
The CLK coupe is equipped with tether
anchorages for a top tether strap at each
of the rear seating positions.1Anchorage ring
2HookOpen the trunk and release the rear
seat backrest (
page 281).
Fold rear seat backrest slightly for-
ward.
Guide top tether strap between head
restraint and top of seat back.
Head restraint must be installed and
positioned such that the top tether
strap can pass freely between the head
restraint and the top of seat back.
Make sure the tether strap is not
twisted.1Anchorage ring
2Hook
Fold up anchorage ring1.
Securely fasten hook2, which is part
of the tether strap, to anchorage
ring1.
S w i n g r e a r s e a t b a c k r e s t t o t h e r e a r u n -
til it engages.
Check the rear seat backrest to be
locked in its upright position
(
page 282).
When the child restraint is not in use,
remove it from the vehicle or secure it with
the seat belt to prevent the child restraint
from becoming a projectile in the event of
an accident.
Do not leave children unattended in the
vehicle, even if the children are secured in a
child restraint system. Unsupervised
children in a child restraint system may use
vehicle equipment and may cause an
accident and/or serious personal injury.
iYour CLK cabriolet does not have and is not
required to have anchorage rings for a child
seat’s top tether strap in the rear seating posi-
tions. Child seats can be used with the seat belt,
or lower anchor system and seat belt, fully in ac-
cordance with the child seat manufacturer’s in-
structions.
iFor safety, make sure the hook2 has at-
tached to the anchorage ring1 beyond the
safety catch, as illustrated.


87 Safety and Security
Occupant safety
Once the top tether anchorage hook is
attached, the child restraint itself can be
secured. Secure the child restraint and
tighten the top tether strap according to
the child restraint manufacturer’s instruc-
tions.
Child seat anchors – LATCH-type
The CLK coupe and cabriolet are equipped
with two LATCH- (L
ower Anchors and Teth-
ers for CH
ildren) type anchors (at each of
the rear seats) for the installation of a
LATCH-type child seat with matching
mounting fittings.LATCH-type anchors
The LATCH-type anchors are located be-
tween the seat cushion and the backrest.
1AnchorsInstall child seat according to the
manufacturer’s instructions.
Warning!G
Always lock backrest in its upright position
when rear seat bench is occupied by pas-
sengers, or the extended cargo area is not in
use. Check for secure locking by pushing
and pulling on the backrest.
Warning!G
Children too big for a toddler restraint must
ride in seats using regular seat belts.
Position shoulder belt across chest and
shoulder, not face or neck.
A booster seat may be necessary to achieve
proper belt positioning for children over
41 lbs until they reach a height where a
lap/shoulder belt fits properly without a
booster.
Install child seat according to manufactur-
er’s instructions.
T h e c h i l d s e a t m u s t b e f i r m l y a t t a c h e d t o t h e
right and left side anchor.
An incorrectly mounted child seat may come
loose during an accident which could result
in serious injury or death to the child.
Damaged or impact damaged child seats or
child seat anchor fittings must be replaced.
Do not leave children unattended in the
vehicle, even if the children are secured in a
child restraint system.
iNon-LATCH-type child seats may also be
used and can be installed using the vehicle’s
seat belt system (
page 83). Install child seat
according to the manufacturer’s instructions.

88 Safety and Security
Occupant safety
Blocking of rear side window operation
You can block the rear side window
operation (for instance when you have
children riding in the rear passenger
compartment).
The override switch is located on the door
control panel of the driver’s door.
1Deactivating override switch
2Activating override switch
3Override switchActivating override switch
Slide override switch3 to the right in
direction2.
The rear side windows can no longer be
operated using the respective switch
located in the rear trim panels.
Deactivating override switch
Slide override switch3 to the left in
direction1.
The rear side windows can be operated
using the respective switch located in
the rear trim panels.
For more information, see “Power win-
dows” (
page 250).
Warning!G
Activate the override switch when children
are riding in the back seats of the vehicle.
The children may otherwise injure them-
selves, e.g. by becoming trapped in the win-
dow opening.
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.
iOperation of the rear side windows with the
switches located on the door control panel of the
driver’s door is still possible.

101 Controls in detail
Locking and unlocking
Opening a door causes its windows to
open slightly. It will fully close when the
door is shut.
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.
!A side window will not work if it is blocked
with ice or if the battery needs charging. If you
cannot shut a door, do not force it or you could
damage the door or the side window. Fix whatev-
er is affecting the window before trying to shut
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 253) and the tilt/sliding sunroof*
(
page 257) or the soft top (page 263) 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 108) and replace them if necessary
(
page 441).

Use the mechanical key to unlock the driv-
er’s door (
page 427) and the trunk
(
page 428).

Use the mechanical key to lock the driver’s
door (
page 428) and the trunk
(
page 118).

Have the vehicle battery and the battery con-
nections checked (
page 464).
If the SmartKey is malfunctioning, contact
Roadside Assistance or an authorized
Mercedes-Benz Center.

104 Controls in detail
Locking and unlocking
SmartKey with KEYLESS-GO
1‹Lock button
2Š Opening button for trunk
(
page 108)
3Mechanical key locking tab
4ΠUnlock button
5Battery check lamp
6Â Panic button (
page 89)Opening a door causes its windows to
open slightly. It will fully close when the
door is shut.
!To prevent possible malfunction, avoid ex-
posing the SmartKey with KEYLESS-GO to high
levels of electromagnetic radiation.
Warning!G
When leaving the vehicle, always take the
SmartKey with KEYLESS-GO* 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.
!A side window will not work if it is blocked
with ice or if the battery needs charging. If you
cannot shut a door, do not force it or you could
damage the door or the side window. Fix whatev-
er is affecting the window before trying to shut
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.

112 Controls in detail
Locking and unlocking
Closing the trunk
Closing the trunk from the inside
automatically*
In vehicles with trunk opening/closing sys-
tem* you can close the trunk from the in-
side using the remote trunk closing*
switch.
Press the remote trunk closing*
switch2 (
page 111) until the indi-
cator lamp in the switch goes out and
the trunk lid is closed.
To interrupt the closing procedure:
Release remote trunk closing*
switch2.If the trunk lid comes into contact with an
object while closing (e.g. luggage that has
been piled too high), in the sequence, the
upper motion the closing procedure is
stopped and the trunk reopens slightly.
iYou can also close the trunk by hand
(
page 113).
Warning!G
Maintain sight of trunk area while operating
the door mounted remote trunk closing*
switch. Monitor the closing procedure care-
fully to ensure that no one is in danger of be-
ing injured.
To interrupt the closing procedure, release
the door mounted remote trunk closing
switch.
Even with the SmartKey or the SmartKey
with KEYLESS-GO* removed from the start-
er switch or the SmartKey with
KEYLESS-GO* removed from the vehicle,
the remote trunk opening/closing* switch
can be operated. Therefore, do not leave
children unattended in the vehicle, or with
access to an unlocked vehicle. Unsuper-
vised use of vehicle equipment may cause
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.

113 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 112). All turn signal lamps
flash three times, and an acoustic signal sounds
three times, to confirm locking.

114 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 113).
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 112). All turn signal lamps
flash three times, and an acoustic signal sounds
three times, to confirm locking.

115 Controls in detail
Locking and unlocking
Closing the trunk from the outside
(vehicles with KEYLESS-GO*)
In vehicles with trunk opening/closing sys-
tem* you can close the trunk separately.
1Trunk closing switch
Make sure you have the SmartKey with
KEYLESS-GO with you.
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 113).
iTo prevent a possible inadvertent lockout,
the trunk will open automatically if a SmartKey
with KEYLESS-GO is recognized inside the
vehicle or in the trunk.
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 KEYLESS-GO locking/closing
switch

press the remote trunk opening or clos-
ing switch (on driver’s door)

press the Š button on the SmartKey
with KEYLESS-GO
Even with the SmartKey with KEYLESS-GO
removed from the vehicle, the trunk closing
switch can be operated. Therefore, do not
leave children unattended in the vehicle, or
with access to an unlocked vehicle. Unsu-
pervised use of vehicle equipment may
cause 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.
iIf the vehicle was previously centrally
locked, the trunk will lock automatically after
closing it (
page 112). All turn signal lamps
flash three times, and an acoustic signal sounds
three times, to confirm locking.