Page 417 of 514
416 Practical hintsWhere will I find...?Setting up the collapsible wheel chock
The collapsible wheel chock serves to
additionally secure the vehicle, e.g. while
changing the wheel.
1Tilt the plate upward
2Fold the lower plate outward
3Insert the plate
Tilt both plates upward1.
Fold the lower plate outward2.
Guide the tabs of the lower plate all the
way into the openings of the base
plate3.
Minispare wheel
The Minispare wheel is located in the
storage compartment underneath the
trunk floor.
Removing the Minispare wheel
Lift up trunk floor cover and engage
trunk floor handle in upper edge of
trunk.
Loosen the retaining screw in the mid-
dle of storage well casing by turning it
counterclockwise (
page 414).
Remove the storage well casing
(page 414).
Page 418 of 514

417 Practical hints
Where will I find...?
1Vehicle tool kit
Wheel wrench
Jack
2Arrow
3Minispare wheel, Wheel bolts for
Minispare wheel
4Vehicle tool kit storage well casing
Remove vehicle tool kit storage well
casing4.
Remove Minispare wheel3.Storing the Minispare wheel
Place Minispare wheel3 in wheel
well.
Place vehicle tool kit storage well
casing4 over the Minispare wheel.
Make sure arrow 2 on vehicle tool kit
storage well casing4 points in the
direction of travel.
Place storage well casing (
page 414)
over the vehicle tool kit storage well
casing 4 and turn the retaining screw
(
page 414) clockwise as far it will go
to secure the Minispare wheel.
Disengage trunk floor handle in upper
edge of trunk and lower trunk floor cov-
er.
iArrow2 on vehicle tool kit storage
well casing4 must point in the
direction of travel. Otherwise you
cannot place the storage well casing
(page 414) on top and secure the
Minispare wheel with the retaining
screw (
page 414).
!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.
Page 419 of 514
418 Practical hintsWhere 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 471).
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)
!Wheel bolts2 must be used when
mounting the Minispare wheel, or other
steel rims. 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.
Page 420 of 514
419 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 direction of
arrow.
Slide mechanical key2 out of the
housing.Unlocking the driver’s door
1Unlocking
Insert the mechanical key into the
driver’s door lock until it stops.
Turn the mechanical key counterclock-
wise to position1.
The driver’s door is unlocked.
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 35).
Page 421 of 514

420 Practical hintsUnlocking/locking in an emergencyUnlocking the trunk
A minimum height clearance of 5.41 ft
(1.65 m) is required to open the trunk lid.
The trunk lid lock is located next to the
handle above the rear license plate recess.
1Unlocking in an emergency
2Handle
Insert the mechanical key into the
trunk lid lock until it stops.
Turn the mechanical key
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 key 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 419).
Check whether the trunk is locked.
If necessary, lock the trunk with the
mechanical key (
page 116).
Except for the driver’s door, the vehicle
should now be locked.
!The trunk lid swings open upwards
automatically. Always make sure there
is sufficient overhead clearance.
Page 422 of 514
421 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 423 of 514

422 Practical hintsUnlocking/locking in an emergencyManually unlocking the gear selector lever
In case of power failure, the gear selector
lever can be manually unlocked, e.g. to tow
the vehicle.
Center armrest design A
Open the storage compartment under
the center armrest (
page 281).
Take out storage box1.
Insert a tool2 (e.g. flat blade screw-
driver) into the opening.
Perform the following two steps simul-
taneously:
Press tool2 forward in the
direction of the arrow.
Move selector lever from
positionP.
Reinstall the storage box1 after re-
moving the tool2 from the opening.Center armrest design B
Pull the tab1 of the covering back in
direction of the center armrest com-
partment.
Insert a tool2 (e.g. flat blade screw-
driver) into the opening.
Perform the following two steps simul-
taneously:
Push tool2 down- and forward in
the direction of the arrow.
Move gear selector lever from
positionP.
Remove the tool2 from the opening.
Push the tab1 of the covering back.
iThe gear selector lever is locked again
when moving it to positionP.
Page 424 of 514

423 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 257).
Open the trunk (
page 108).
Fold back the luggage cover
(page 262).
Take hex wrench out of its storage
location in the storage well casing
(page 413).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.