2005 MERCEDES-BENZ C320 ECU

330 Practical hintsWhere will I find ...?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.Removing the vehicle tool kit
(C 55 AMG only)

Lift up trunk floor cover and engage
trunk floor handle in upper edge of
trunk.
1Collapsible tire
2Vehicle tool kit (under collapsible tire)
3Retaining screw

Loosen retaining screw3 by turning it
counterclockwise.

Remove collapsible tire1.

Remove vehicle tool kit2.
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.!To prevent damage, always disengage
trunk floor handle from upper edge of
trunk and lower trunk floor before
closing the trunk lid.


332 Practical hintsWhere will I find ...?Operational position
Turn crank handle clockwise until it
engages (operational position).
Before storing the vehicle jack in its
compartment:


It should be fully collapsed.


The handle must be folded in (storage
position).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.

333 Practical hints
Where will I find ...?
Minispare wheel (except C 55 AMG)
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
(page 329) in the middle of storage
well casing.

Remove the storage well casing
(page 329).1Vehicle tool kit
2Arrow
3Minispare 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 arrow2 on vehicle tool kit
storage well casing4 points in the
direction of travel.

Place storage well casing (
page 329)
over vehicle tool kit storage well
casing4 and turn the retaining screw
(
page 329) 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 329) on top and secure the
Minispare wheel with the retaining
screw (
page 329).

335 Practical hints
Where will I find ...?

Loosen retaining screw3 by turning it
counterclockwise.

Remove collapsible tire1.
Storing the collapsible tire
If you wish to store the collapsible tire after
use, carry out the following steps.
Otherwise the collapsible tire will not fit
the storage compartment.

Unscrew the valve cap from the valve
of the collapsible tire.

Take the valve extractor from the
vehicle tool kit (
page 331).

Unscrew the valve insert from the valve
and allow the air to escape.

Screw the valve insert back into the
valve.

Screw the valve cap back on the valve.

Pull the protective wrap provided with
the vehicle tool kit over the collapsible
tire.

Store the collapsible tire and the valve
extractor in the storage compartment
underneath the trunk floor.

Pierce the protective wrap with
retaining screw3.

Secure the collapsible tire by turning
retaining screw3clockwise.
!Make sure the collapsible tire is dry
when storing it.
iIt may take a few minutes for the col-
lapsible tire to deflate completely.
!To prevent damage, always disengage
trunk floor handle from upper edge of
trunk and lower trunk floor before
closing the trunk lid.Warning!
G
The dimensions of the collapsible tire are
different from those of the road wheels. As
a result, the vehicle handling characteristics
change when driving with a collapsible tire
mounted.
The collapsible tire should only be used tem-
porarily, and should be replaced with a reg-
ular road wheel as quickly as possible.

360 Practical hintsBatteryThe 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
result in severe injury or death.
Observe all safety instructions and
precautions when handling automotive
batteries (
page 284).
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.

361 Practical hints
Battery
1Negative terminal
2Positive terminal cover
Disconnecting the battery
Turn off the engine (
page 56).

Turn off all electrical consumers.

Remove SmartKey from starter switch.

Open the hood (
page 278).

Remove the filter box (
page 360).

Disconnect the battery negative lead
from negative terminal1.

Remove cover2 from the positive
terminal.

Disconnect the battery positive lead.
Removing the battery
Remove the screw-nuts securing the
battery.

Remove the battery bracket.

Take out the battery.
Charging and reinstalling the 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


the gear selector lever will remain
locked in positionP
Warning!
G
Never charge a battery while still installed in
the vehicle. Gases may escape during charg-
ing and cause explosions that may result in
paint damage, corrosion or personal injury.

362 Practical hintsBatteryReconnecting the battery
Turn off all electrical consumers.

Remove SmartKey from starter switch.

Connect the battery positive lead and
fasten its cover2.

Connect the battery negative lead.

Reinstall the filter box (
page 360).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.
!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
carried out following any interruption of
battery power (e.g. due to reconnec-
tion):

Set the clock (
page 137).
Vehicles with COMAND*:
See COMAND operator’s manual.


Synchronize side windows
(page 226).


Synchronize tilt/sliding sunroof*
(page 230).

371 Practical hintsFuses
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 panel
2Fuse extractor
3Fuse box coverOpening fuse box

Pull away trim panel1.

Remove fuse box cover3.
Closing fuse box

Insert fuse box cover3 until it
engages.

Insert trim panel1.