2004 MERCEDES-BENZ CLK320 CABRIOLET key

349 Practical hints
Unlocking/locking in an emergency
Unlocking the trunk
A minimum height clearance of 5.41 ft
(1.65 m) is required to open the trunk lid.
The lock is located next to the recessed
handle.
1Unlocking in an emergency
2Handle

Insert the mechanical key into the
trunk lid lock.

Turn the mechanical key counterclock-
wise to position1 and hold it in this
position.

Pull the trunk lid handle2 and lift the
trunk lid.
The trunk opens.
Locking the vehicle
If you are unable to lock the vehicle with
the SmartKey, lock it with the mechanical
key as follows:
Close the passenger door and the trunk
lid.

Press the central locking switch in the
cockpit (
page 108).

Check to see whether the locking knob
on the passenger door down. If neces-
sary push it down manually.

Lock the driver’s door with the me-
chanical key.

Lock the trunk lid if necessary with the
mechanical key (
page 106).
! Always make sure there is sufficient
overhead clearance.

350 Practical hintsUnlocking/locking in an emergencyChanging batteries in the SmartKey/ SmartKey with KEYLESS-GO*
If the batteries in the SmartKey or the
SmartKey with KEYLESS-GO* are dis-
charged, the vehicle can no longer be
locked or unlocked. It is recommended to
have the batteries replaced at an autho-
rized Mercedes-Benz Center.
Batteries contain materials that can harm
the environment if disposed of improperly.
Recycling of batteries is the preferred
method of disposal. Many states require
sellers of batteries to accept old batteries
for recycling.SmartKey
1Mechanical key
2Battery compartment
Replacement batteries: Lithium, type
CR 2025 or equivalent.

Remove mechanical key1
(page 348).

Insert the mechanical key in side open-
ing and push gray slide.
The battery compartment is unlatched.

Pull the battery compartment out of the
SmartKey housing in direction of ar-
row.

Remove the batteries.
Warning!
G
Keep the batteries out of reach of children.
If a battery is swallowed, seek medical help
immediately.
iWhen changing batteries, always re-
place both batteries.
The required replacement batteries are
available at any Mercedes-Benz
Center.

351 Practical hints
Unlocking/locking in an emergency
3Battery
4Contact spring
Using a lint-free cloth, insert new bat-
teries under the contact spring with the
plus (+) side facing up.

Return battery compartment into hous-
ing until it locks into place.SmartKey with KEYLESS-GO*
1Battery
2Tilt battery up
3Mechanical key
Replacement batteries: Lithium, type
CR 2025 or equivalent.

Remove mechanical key (
page 348).

Insert the mechanical key in side open-
ing and push grey slide.
The battery compartment is unlatched.

Pull the battery compartment out of the
SmartKey housing in direction of ar-
row.

Using mechanical key3, apply pres-
sure to position2.
Battery1 tilts up slightly.

Pull batteries1 out in direction of ar-
row.

Using a lint-free cloth, insert new bat-
teries with the plus (+) side facing up.

Return battery compartment into hous-
ing until it locks into place.
iWhen changing batteries, always re-
place both batteries.
The required replacement batteries are
available at any Mercedes-Benz
Center.

357 Practical hints
Opening/closing in an emergency
Vehicles without additional locking
mechanism
Engage parking brake

Lower the side windows.

Lower rear head restraints
(page 111).

For safety reasons, remove SmartKey
from starter switch.

Open the trunk.

Lift the trunk floor cover.

Take the two straps for soft top emer-
gency operation out of vehicle tool kit
(page 343)

Take hex wrench out of the
Mercedes-Benz vehicle literature
pouch.

Open the left side trim panel in the
trunk.1Hex wrench
2Screw of hydraulic pump

Insert hex wrench 1 into screw2.

Turn hydraulic pump screw2 counter-
clockwise one revolution with hex
wrench 1.
iIf the rear head restraints cannot be
lowered, the roll bars may have been
released. For more information, see
“Operating roll bars manually”
(page 353).
!Do not operate the soft top switch with
screw2 in the opened position, other-
wise the hydraulic pump could be dam-
aged.


359 Practical hints
Opening/closing in an emergency

Place both straps on soft top compart-
ment cover.

Take hex wrench out of trunk.

Close trunk lid.
You will only have access to the trunk
again when the emergency operation
has been completed.

You and your assistant should each
take one of the straps by the handle.

With a strong, simultaneous tug on the
loops, pull soft top compartment cover
upward and out to the rear.
iDo not place the SmartKey in the open
trunk. You may lock yourself out.
Vehicles with KEYLESS-GO*: To pre-
vent a possible inadvertent lockout, the
trunk lid will open automatically if a
SmartKey with KEYLESS-GO* is recog-
nized in the area of the rear shelf or in-
side the trunk.!The trunk lid must remain closed during
the next steps in the procedure. Other-
wise the trunk lid and the soft top com-
partment cover may come into contact
with one another and be damaged.Warning!
G
At this point, the remaining procedure
needs to be done by two people. Otherwise
you could be injured.


363 Practical hints
Opening/closing in an emergency
eLocking 
Insert hex wrench into soft top locking
mechanism screw.

Turn the soft top locking mechanism
screw with hex wrench counterclock-
wise in direction of arrowe as far as it
will go.
The soft top is locked onto the wind-
shield frame.

Have the soft top operation checked at
your authorized Mercedes-Benz Center
as soon as possible.
Warning!
G
Position hands as indicated by arrows so
that when you press soft top compartment
cover c forward and lower material ten-
sioning frameb, your hands cannot be-
come trapped.
!Make sure you turn the hex wrench
counterclockwise as far as it will go.
Otherwise the soft top may not lock
properly.!If, after completing the soft top emer-
gency operation, the trunk cannot be
opened using the remote trunk lid re-
lease switch in the driver’s door,
theŠ button on the SmartKey, or
the trunk lid release handle in the li-
cense plate recess, press the soft top
compartment cover down again as de-
scribed above.
Do not open the trunk with the emer-
gency key, as this could otherwise
damage the trunk lid and the soft top
compartment cover.

364 Practical hintsOpening/closing in an emergencyVehicles with additional locking
mechanism
Engage parking brake

Lower the side windows.

Lower rear head restraints
(page 111).

For safety reasons, remove SmartKey
from starter switch.

Open the trunk.

Lift the trunk floor cover.

Take the two straps for soft top emer-
gency operation out of vehicle tool kit
(page 343)

Take hex wrench out of the
Mercedes-Benz vehicle literature
pouch.

Open the left side trim panel in the
trunk.1Hex wrench
2Screw of hydraulic pump

Insert hex wrench1 into screw2.

Turn hydraulic pump screw2 counter-
clockwise one revolution with hex
wrench1.
iIf the rear head restraints cannot be
lowered, the roll bars may have been
released. For more information, see
“Operating roll bars manually”
(page 353).
!Do not operate the soft top switch with
screw2 in the opened position, other-
wise the hydraulic pump could be dam-
aged.

367 Practical hints
Opening/closing in an emergency

Place both straps on soft top compart-
ment cover.

Take hex wrench out of trunk.

Close trunk lid.
You will only have access to the trunk
again when the emergency operation
has been completed.

You and your assistant should each
take one of the straps by the handle.

With a strong, simultaneous tug on the
loops, pull soft top compartment cover
upward and out to the rear.
iDo not place the SmartKey in the open
trunk. You may lock yourself out.
Vehicles with KEYLESS-GO*: To pre-
vent a possible inadvertent lockout, the
trunk lid will open automatically if a
SmartKey with KEYLESS-GO* is recog-
nized in the area of the rear shelf or in-
side the trunk.!The trunk lid must remain closed during
the next steps in the procedure. Other-
wise the trunk lid and the soft top com-
partment cover may come into contact
with one another and be damaged.Warning!
G
At this point, the remaining procedure
needs to be done by two people. Otherwise
you could be injured.