Page 393 of 506
392 Practical hintsWhere will I find...?
Loosen retaining screw 1 in the mid-
dle of storage well casing 2 by turning
it counterclockwise.
Remove storage well casing2.
3Arrow
4Minispare wheel
5Vehicle tool kit storage well casing
6Vehicle tool kit
Remove vehicle tool kit6.Storing the vehicle tool kit
Place vehicle tool kit6 in vehicle tool
kit storage well casing5.
Place storage well casing2 over the
vehicle tool kit storage well casing5
and turn retaining screw1 clockwise
as far it will go to secure the Minispare
wheel.
Reinstall trunk floor cover in trunk.
iArrow3 on vehicle tool kit storage
well casing5 must point in the direc-
tion of travel. Otherwise you cannot
place the storage well casing2 on top
and secure the Minispare wheel with
retaining screw1.
Page 395 of 506
394 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
Remove trunk floor cover from trunk.
Loosen the retaining screw in the mid-
dle of storage well casing by turning it
counterclockwise (
page 391).
Remove the storage well casing
(page 391).
Page 396 of 506

395 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 391)
over the vehicle tool kit storage well
casing 4 and turn the retaining screw
(
page 391) clockwise as far it will go
to secure the Minispare wheel.
iArrow2 on vehicle tool kit storage
well casing4 must point in the
direction of travel. Otherwise you
cannot place the storage well casing
(page 391) on top and secure the
Minispare wheel with the retaining
screw (
page 391).
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.
Page 407 of 506
406 Practical hintsOpening/closing in an emergency6Lever
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.
Pull strap between soft top storage
compartment hinge and soft top com-
partment.
Secure second strap to second hinge in
the same manner.!Do not pull the straps when the trunk is
open.
Page 428 of 506

427 Practical hints
Battery
Battery
The battery is located in the engine
compartment on the right hand side.
1Clamps
Removing filter box:
Release clamps1.
Remove filter box.
Installing filter box:
Insert filter box properly.
Secure it with clamps1.
Warning!
G
Failure to follow these instructions can re-
sult in severe injury or death.
Observe all safety instructions and
precautions when handling automotive
batteries (
page 311).
Never lean over batteries while connecting,
you might get injured.
Battery fluid contains sulfuric acid. Do not
allow this fluid to come in contact with eyes,
skin or clothing. In case it does, immediately
flush affected area with water and seek
medical help if necessary.
A battery will also produce hydrogen gas,
which is flammable and explosive. Keep
flames or sparks away from battery, avoid
improper connection of jumper cables,
smoking etc.
!Never loosen or detach battery termi-
nal clamps while the engine is running
or the SmartKey is in the starter switch.
Otherwise the alternator and other
electronic components could be se-
verely damaged.
Have the battery checked regularly by
an authorized Mercedes-Benz Center.
Refer to Maintenance Booklet for
maintenance intervals or contact an
authorized Mercedes-Benz Center for
further information.Warning!
G
Do not place metal objects on the battery as
this could result in a short circuit.
Use leak-proof battery only to avoid the risk
of acid burns in the event of an accident.
Page 429 of 506

428 Practical hintsBattery2Negative terminal
3Positive terminal cover
Disconnecting the battery
Turn off the engine (
page 56).
Turn off all electrical consumers.
Remove SmartKey from starter switch.
Vehicles with KEYLESS-GO*:
Press the start / stop button until
the engine shuts off.
Open the driver’s door.
Open the hood (
page 305).
Remove the filter box (
page 427).
Read and observe safety instructions
and precautions (
page 427).
Disconnect the battery negative lead
from negative terminal2.
Remove cover3 from the positive ter-
minal.
Disconnect the battery positive lead.
Removing the battery
Remove the screw securing the
battery.
Remove the battery support and
bracket.
Take out the battery.
Charging and reinstalling battery
Charge battery in accordance with the
instructions of the battery charger
manufacturer.
Reinstall the charged battery. Follow
the previously described steps in
reverse order.
Warning!
G
With a disconnected battery
you will no longer be able to turn the
SmartKey in the starter switch and
pressing the KEYLESS-GO* start/stop
button on the gear selector lever will
have no effect
the gear selector lever will remain
locked in position
P
Page 430 of 506

429 Practical hints
Battery
Reconnecting the battery
Turn off all electrical consumers.
Remove SmartKey from starter switch.
Vehicles with KEYLESS-GO*:
Press the start / stop button until
the engine shuts off.
Open the driver’s door.
Connect the battery positive lead and
fasten its cover3.
Connect the battery negative lead2.
Reinstall the filter box (
page 427).Batteries contain materials that can harm
the environment if disposed of improperly.
Large 12-volt storage batteries contain
lead. Recycling of batteries is the preferred
method of disposal. Many states require
sellers of batteries to accept old batteries
for recycling.
Warning!
G
Never charge a battery while still installed in
the vehicle unless the accessory battery
charge unit* approved by Mercedes-Benz is
being used. Gases may escape during charg-
ing and cause explosions that may result in
paint damage, corrosion or personal injury.
An accessory battery charge unit* specially
adapted for Mercedes-Benz vehicles and
tested and approved by Mercedes-Benz is
available, permitting the charging of the bat-
tery in its installed position. Contact an au-
thorized Mercedes-Benz Center for
information and availability. Charge battery
in accordance with the separate instruc-
tions for the accessory battery charger*.
!NEVER invert the terminal connections!!The battery, its filler caps and the vent
tube must always be securely installed
when the vehicle is in operation.
iThe following procedures must be car-
ried out following any interruption of
battery power (e.g. due to reconnect-
ing):
Set the clock (
page 147) (vehi-
cles with COMAND*: see COMAND
operator’s manual).
Resynchronize the side windows
(page 243).
Page 439 of 506
438 Practical hintsFusesOpening fuse box
4Fuse box cover
5Clamps
With a dry cloth, remove any moisture
from the fuse box.
Release clamps5.
Remove cover4.Closing fuse box
Make sure that the sealing rubber is
properly positioned.
Press fuse box cover4 down and
secure with clamps5.
Installing cover
Insert cover1 sideways into
retainer3.
Twist screws2 90° clockwise.
Fuse box in trunk
The fuse box is located in the trunk behind
the left-hand trim panel.
1Trim cover
Opening fuse box
To open, pull trim cover1 in the direc-
tion of the rear light and outward.
Closing fuse box
Press trim cover1 back into place.