Page 400 of 506
399 Practical hints
Unlocking/locking in an emergency
1Locking
Insert the mechanical key into the
driver’s door lock until it stops.
Turn the mechanical key clockwise to
position1.
The driver’s door is locked.
Fuel filler flap
In case the central locking system does
not release the fuel filler flap, you can open
it manually.
The release button is on the right-hand
side of the luggage compartment behind
the side trim.
Open trunk lid.
Remove the side trim from the
right-hand side of the luggage compart-
ment.
Reach inside through opening2 in di-
rection of arrow.
Turn release knob 1 clockwise (arrow)
as far as will go.
The fuel filler flap is released and can
be opened from outside.
Open the fuel filler flap from outside.
Warning!
G
If you operate the emergency release but-
ton, be careful of the sharp edges so that
you do not injure yourself.
Page 402 of 506

401 Practical hints
Opening/closing in an emergency
Opening/closing in an emergency
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 248).
Open the trunk (
page 106).
Fold back the luggage cover
(page 245).
Open ski sack roller blind
(page 246).
Take hex wrench out of its storage
location in the storage well casing.1Perforation
Push hex wrench through
perforation1 in trim of rear wall in
trunk.
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
cannot 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.
Page 403 of 506

402 Practical hintsOpening/closing in an emergency2Hex wrench
Insert long side of hex wrench2 into
opening.
Using hex wrench 2, press release
catch down in direction of arrow.
The roll bar extends with a loud sound.
Repeat this step for the second roll bar.
Have the systems checked at an autho-
rized Mercedes-Benz Center as soon as
possible.Lowering roll bars manually
With the soft top open, you can lower the
roll bars manually after they have been re-
leased.
1Orientation seam
2Hex wrench
3Press wrench down
4Press head restraint down
Take hex wrench out of its storage
location in the storage well casing.
Align hex wrench so that its long side is
parallel to orientation seam1 and in-
sert hex wrench2 into gap on left side
of respective head restraint.
iWith the roll bars released, the soft top
cannot be operated using the soft top
switch and the rear head restraints
cannot be lowered using the rear head
restraint lowering switch.Warning!
G
Never lower the roll bars manually unless
the soft top is open. Otherwise, the roll bars
function could be impaired, no longer reduc-
ing your risk of injury in an optimal manner.
Contact an authorized Mercedes-Benz Cen-
ter to have the roll bar lowered when the
soft top is closed.
Page 404 of 506

403 Practical hints
Opening/closing in an emergency
Press hex wrench down firmly in direc-
tion of arrow3 and hold.
Press head restraint down in direction
of arrow4.
Pull hex wrench 2 out and take weight
off head restraint.
Repeat this procedure on roll bar for
second head restraint.
Soft top emergency operation
If the soft top cannot be automatically
closed, check the following:
Is the luggage cover engaged in place
(page 245)?
Is the ski sack roller blind closed
(page 246)?
Have the roll bars been released? If so,
lower the roll bars manually
(page 402).
Is the trunk lid closed (
page 107)?
Is there sufficient on-board voltage?
Start the engine if necessary.
These messages will also appear in the
multifunction display (
page 390).
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.
!Manually closing the soft top is a com-
plicated 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 perform-
ing 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 and indi-
cated. Otherwise you could injure your-
self.
Page 408 of 506

407 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.
Page 409 of 506

408 Practical hintsOpening/closing in an emergency9Soft top compartment cover
One person should stand on the left
side of the vehicle and the other on the
right side.
Pulling the cover back in one smooth
motion, lift soft top compartment
cover9 into a vertical position until it
stops.aEdge of soft top
From left and right sides, reach into
soft top compartment underneath
edge of soft topa.
Warning!
G
In the next step, you and your assistant
should each take hold of the soft top com-
partment cover as shown in the illustration.
Both of you should use your free hand to
support yourselves on the edge of the trunk
lid as shown in the illustration.
If either you or your helper assume a differ-
ent position, one or both of you could be
trapped or injured. !Make sure the soft top storage com-
partment hinges do not fold down dur-
ing this procedure. Otherwise your
vehicle could be damaged.
Warning!
G
Do not place your hands near the upper
windshield area, trunk lid, or between soft
top roof panels and hinges while the soft top
is being raised and locked. Serious personal
injury may occur.
Page 412 of 506

411 Practical hints
Opening/closing in an emergency
hLocking
Insert hex wrench into soft top locking
mechanism screw.
Turn the soft top locking mechanism
screw with hex wrench counterclock-
wise in direction of arrowh as far as it
will go.
The soft top is locked onto the wind-
shield frame.
Have the soft top operation checked at
an authorized Mercedes-Benz Center
as soon as possible.
Warning!
G
Position hands as indicated by arrows so
that when you press soft top compartment
coverf forward and lower material ten-
sioning framee, 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.
Page 413 of 506

412 Practical hintsReplacing 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
authorized 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
Replacement batteries: Lithium, type
CR 2025 or equivalent.
Remove mechanical key1
(page 397).
1Mechanical key
2Battery compartment
Insert mechanical key 1 in side
opening and push gray slide.
Battery compartment2 is unlatched.
Pull battery compartment 2 out of the
SmartKey housing in direction of
arrow.
Warning!
G
Keep the batteries out of reach of children.
If a battery is swallowed, seek medical help
immediately.
iWhen inserting the batteries, make
sure they are clean and free of lint.iWhen changing batteries, always re-
place both batteries.
The required replacement batteries are
available at any Mercedes-Benz
Center.