2008 MERCEDES-BENZ CLK550 trunk

426 Practical hints
Where will I find...?
In case of a flat tire, you may temporarily
use the Minispare wheel when observing
the following restrictions:

Do not exceed a vehicle speed of
50 mph (80 km/h).

Drive to the nearest tire repair facility
to have the flat tire repaired or
replaced as appropriate.

Do not operate vehicle with more than
one Minispare wheel mounted.
For more information, see “Rims and tires”
(
page 482).
Spare wheel bolts
The spare wheel bolts are fixed at the
Minispare wheel.
1Wheel bolt for light alloy rims
2Wheel bolt for Minispare wheel
(located in trunk with spare wheel)
!To prevent damage, always disengage trunk
floor handle from upper edge of trunk and lower
trunk floor before closing the trunk.
Warning!G
The dimensions of the Minispare wheel are
different from those of the road wheels. As
a result, the vehicle handling characteristics
change when driving with a Minispare wheel
mounted.
The Minispare wheel should only be used
temporarily, and should be replaced with a
regular road wheel as quickly as possible.
Do not switch off the ESP
® when a Minis-
pare wheel is mounted.
!Wheel bolts2 must be used when mount-
ing the Minispare wheel. The use of any wheel
bolts other than wheel bolts2 for the Minispare
wheel will physically damage the vehicle’s
brakes.
Warning!G
Make sure to use the original length wheel
bolts when remounting the original wheel
after it has been repaired.


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

428 Practical hints
Unlocking/locking in an emergency
Unlocking the trunk
A minimum height clearance of 5.71 ft
(1.74 m) (CLK coupe) or 5.41 ft (1.65 m)
(CLK cabriolet) is required to open the
trunk lid.
The trunk lid lock is located next to the
handle above the rear license plate recess.Insert the mechanical key3 into the
trunk lid lock until it stops.
Turn the mechanical key3
counterclockwise to position1 and
hold it in this position.
Pull the trunk lid handle2 and lift the
trunk lid.
The trunk opens.
Turn the mechanical key3 back and
remove it from the trunk lid lock.
Locking the vehicle
If you cannot lock the vehicle with the
SmartKey or SmartKey with
KEYLESS-GO*, do the following:
Close the passenger door and the
trunk.
Press the central locking switch in the
center console (
page 118).
Check to see whether the locking knob
on the passenger door has moved
down.
If necessary, push it down manually.
Remove the mechanical key out of the
SmartKey (
page 427).
Check whether the trunk is locked.
If necessary, lock the trunk with the
mechanical key (
page 118).
Except for the driver’s door, the vehicle
should now be locked.
1Unlocking in an emergency
2Handle
3Mechanical key
!The trunk lid swings open upwards
automatically. Always make sure there is suffi-
cient overhead clearance.

430 Practical hints
Opening/closing in an emergency (Cabriolet)
Operating roll bars manually
Releasing roll bars manually
If the roll bar system is malfunctioning, you
can release the roll bars manually.Close the soft top (page 261).
Open the trunk (page 110).
Fold back the luggage cover
(
page 264).
Take hex wrench out of its storage
location in the storage well casing
(
page 422).
1Perforation
Push hex wrench through
perforation1 in trim of rear wall in
trunk.
2Hex wrench
Warning!G
If the yellow roll bar warning lamp in
the clock does not go out after starting the
engine, or if it comes on while driving, then
the roll bar system is not operating properly
and may not activate in an accident. In this
case, raise the roll bars manually before
continuing to drive.
For safety reasons drive only with the roll
bars raised until the malfunction is repaired.
Have your vehicle checked at an authorized
Mercedes-Benz Center.
iWith the roll bars released, the soft top can-
not be operated using the soft top switch and the
rear head restraints cannot be lowered using the
rear head restraint lowering switch.
Warning!G
Make sure no one is located in the roll bar’s
path of motion while the next steps are be-
ing carried out.
When the roll bar is manually released, the
rear head restraints and the roll bar under-
neath shoot up almost instantaneously.

432 Practical hints
Opening/closing in an emergency (Cabriolet)
Soft top emergency operation
If the soft top cannot be automatically
closed, check the following:

Is the luggage cover engaged in place
(
page 264)?

Have the roll bars been released? If so,
lower the roll bars manually
(
page 431).

Is the trunk lid closed (page 112)?

Is there sufficient on-board voltage?
Start the engine if necessary.
These messages will also appear in the
multifunction display (
page 420).
If automatic operation still does not func-
tion properly, you can close the soft top
manually.
This procedure should be performed with
great care by two persons.
Engage parking brake.
Lower the side windows.
Lower rear head restraints
(
page 123).
For safety reasons, remove SmartKey
from starter switch.
Open the trunk.
Remove the trunk floor cover.
Take the two straps for soft top emer-
gency operation out of vehicle tool kit
(
page 422).
Take hex wrench out of its storage
location in the storage well casing
(
page 422).
Open the left side trim panel in the
trunk.
!Manually closing the soft top is a complicat-
ed and technically demanding procedure. Close
the soft top manually in emergency cases only.
Otherwise, visit an authorized Mercedes-Benz
Center. Please read the instructions fully before
beginning operation and only undertake it with
another person and if you feel fully capable of
performing the tasks involved.
Warning!G

It is important that a second person
helps you. Otherwise, you could become
trapped or injured.

Remove any wristwatches or jewelry
such as rings or bracelets. Otherwise,
they could get caught in the vehicle
mechanism, causing personal injury to
yourself or damage to the vehicle.

Always use the grips provided as indi-
cated. Otherwise you could injure your-
self.
iIf the rear head restraints cannot be lowered
using the rear head restraint lowering switch, the
roll bars may have been released. For more infor-
mation, see “Operating roll bars manually”
(
page 430).

433 Practical hints
Opening/closing in an emergency (Cabriolet)
1Locking mechanism
Pull locking mechanism1 out until it
stops and rotate it approximately
one-quarter of a turn.
Make sure the locking mechanism
does not retract again. If this happens,
pull the locking mechanism out again
and rotate it approximately one-quarter
of a turn.2Trim
Fold the right-hand side of the trunk
floor away.
Detach trim2 along the perforation.3Locking mechanism
Pull locking mechanism3 out until it
stops and rotate it approximately
one-quarter of a turn.
Make sure the locking mechanism
does not retract again. If this happens,
pull the locking mechanism out again
and rotate it approximately one-quarter
of a turn.


434 Practical hints
Opening/closing in an emergency (Cabriolet)
4Hex wrench
5Screw of hydraulic pump
Insert hex wrench4 into screw5.
Turn hydraulic pump screw5 counter-
clockwise one revolution with hex
wrench4.6Lever
7Soft top storage compartment hinge
The soft top storage compartment hinges
are located on the left and right of the
space between the soft top compartment
cover and the trunk seal.
Pull the two levers6 apart and fold
levers6 of soft top storage compart-
ment hinge7 forward on both sides
over the detent position.8Strap
Pull strap8, supplied in vehicle tool
kit, behind soft top storage compart-
ment through hinge7.
Bring strap together in front of hinge.
Pull the side with the handle through
the loop on the opposite side.
!Do not operate the soft top switch with
screw5 in the opened position, otherwise the
hydraulic pump could be damaged.


435 Practical hints
Opening/closing in an emergency (Cabriolet)
Pull strap between soft top storage
compartment hinge and soft top com-
partment.
Secure second strap to second hinge in
the same manner.
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.
!Do not pull the straps when the trunk is
open.
iDo not place the SmartKey in the open
trunk. You may lock yourself out.
Vehicles with KEYLESS-GO*: To prevent a possi-
ble inadvertent lockout, the trunk lid will open
automatically if a SmartKey with KEYLESS-GO*
is recognized 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. Otherwise the trunk
lid and the soft top compartment cover may
come into contact with one another and be dam-
aged.
Warning!G
At this point, the remaining procedure
needs to be done by two people. Otherwise
you could be injured.