2005 MERCEDES-BENZ C320 spare wheel

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).

334 Practical hintsWhere will I find ...?
In the 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 380).
Collapsible tire (C 55 AMG only)
The collapsible tire is located in the
storage compartment underneath the
trunk floor.
Removing the collapsible tire
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
!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 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.

336 Practical hintsWhere will I find ...?In the case of a flat tire, you may
temporarily use the collapsible tire 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 collapsible tire mounted.
For more information, see “Rims and Tires”
(
page 380).
Spare wheel bolts
1Wheel bolt for light alloy rims
2Wheel bolt for Minispare wheel,
collapsible tire, or other steel rims
(located in trunk with spare wheel)
!Wheel bolts2 must be used when
mounting the Minispare wheel,
collapsible tire, or other steel rims. The
use of any wheel bolts other than wheel
bolts2 for the Minispare wheel,
collapsible tire, or other steel rims 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.

353 Practical hints
Flat tire
Flat tire
Preparing the vehicle
Park the vehicle as far as possible from
moving traffic on a hard surface.

Turn on the hazard warning flasher
(page 114).

Turn the steering wheel so that the
front wheels are in a straight ahead
position.

Set the parking brake (
page 54).

Move the gear selector lever toP
(manual transmission to first or reverse
gear).

Turn off the engine (
page 56).

Remove the SmartKey from the starter
switch.

Have any passenger exit the vehicle at
a safe distance from the roadway.
Mounting the spare wheel
Preparing the vehicle
Prepare the vehicle as described
(page 353).
Vehicles with Minispare wheel:

Take the wheel wrench, the wheel
bolts, and the jack out of the trunk
(page 329).

Take the Minispare wheel out of the
trunk (
page 333).
Vehicles with collapsible tire
(C 55 AMG only):

Take the collapsible tire, wheel wrench,
wheel bolts, jack, and electric air pump
out of the trunk (
page 330).
Warning!
G
The dimensions of the spare wheel
(Minispare or collapsible tire) are different
from those of the road wheels. As a result,
the vehicle handling characteristics change
when driving with a spare wheel mounted.
Adapt your driving style accordingly.
The spare wheel is for temporary use only.
When driving with spare wheel mounted,
ensure proper tire pressure and do not ex-
ceed a vehicle speed of 50 mph (80 km/h).
Drive to the nearest Mercedes-Benz Center
as soon as possible to have the spare wheel
replaced with a regular road wheel.
Never operate the vehicle with more than
one spare wheel mounted.
iOpen doors only when conditions are
safe to do so.

356 Practical hintsFlat tireMounting the spare wheel
1Wheel bolt for light alloy rims
2Wheel bolt for Minispare wheel,
collapsible tire, or other steel rims
(located in trunk with spare wheel)

Clean contact surfaces of wheel and
wheel hub.

Guide spare wheel onto the alignment
bolt and push it on.

Insert wheel bolts and tighten them
slightly.
!Wheel bolts2 must be used when
mounting the Minispare wheel,
collapsible tire, or other steel rims. The
use of any wheel bolts other than wheel
bolts2 for the Minispare wheel,
collapsible tire, or other steel rims will
physically damage the vehicle’s
brakes.
!To avoid paint damage, place wheel flat
against hub and hold it there while
installing first wheel bolt.Warning!
G
Always replace wheel bolts that are
damaged or rusted.
Never apply oil or grease to wheel bolts.
Damaged wheel hub threads should be
repaired immediately. Do not continue to
drive under these circumstances! Contact
an authorized Mercedes-Benz Center or call
Roadside Assistance.
Incorrect wheel bolts or improperly tight-
ened wheel bolts can cause the wheel to
come off. This could cause an accident.
Make sure to use the correct wheel bolts.

369 Practical hintsFuses
Fuses
The electrical fuses in your vehicle serve to
stop the supply of electricity to a device
that is malfunctioning. This helps to
prevent damage to the other vehicle
electronics.
The following aids are available to help you
change fuses (
page 369):


Fuse chart


Spare fuses


Fuse extractor
The electrical fuses are located in different
fuse boxes:


Main fuse box in passenger
compartment (
page 370)


Fuse box in engine compartment
(page 370)


Fuse box in trunk (
page 371)
Aids for changing fuses
Fuse chart
The fuse chart is found in the main fuse
box in the passenger compartment
(page 370). The amperages of the fuses
are also given there.
Spare fuses
Spare fuses are found in the vehicle tool kit
in the spare wheel well (
page 329).
Fuse extractor
The fuse extractor is found in the fuse box
cover in the trunk (
page 371).
Warning!
G
Only use fuses approved for Mercedes-Benz
with the specified amperage for the system
in question. Otherwise, a short circuit could
result and cause a fire.
!Only install fuses that have been tested
and approved by Mercedes-Benz and
that have the specified amperage
rating.
Otherwise, electrical parts or systems
could be damaged.
Never attempt to repair or bridge a
blown fuse. Have the cause determined
and remedied by an authorized
Mercedes-Benz Center.

383 Technical data
Rims and Tires
Minispare wheelCollapsible tire (C 55 AMG only)Model
C 230 Kompressor (Canada only)
C240
C2404MATIC
C 320 (USA only)
C3204MATIC
C230Kompressor Sport
C320 Sport
Rim (steel)
3.5 B x 16 H2
3.5 B x 17 H2
Wheel offset
0.67 in (17 mm)
0.67 in (17 mm)
Tire
T 125/90 R16 98M
1
1Must not be used with snow chains.
T 125/80 R17 99M
1
Model
C55AMG
Rim (steel)
4.5 B x 17 H2
Wheel offset
0.47 in (12 mm)
Tire
145/70-17 92P
1
1Must not be used with snow chains.

408 Index
Starting with 47
Steering wheel gearshift control
(C 55 AMG only) 164
Transmission fluid 282
B
BabySmart
TM
Air bag deactivation system 70, 399
Compatible child seats 70, 399
Self-test 70
Backrest
Folding forward 238
Folding rearward 238
Backrest contour
Adjusting 104
Backrest side bolsters
Adjusting 104
Backrest tilt
Manual seat 36
Power seat* 38
Backup lamps
Messages in display 323
Replacing bulbs 345BAS 78, 399
Messages in display 311
Batteries, SmartKey
Changing 343
Check lamp 90
Checking 91
Battery discharged
Jump starting 363
Battery, vehicle 284, 360
Charging 361
Disconnecting 361
Reconnecting 362
Reinstalling 361
Removing 361
Bi-Xenon headlamps* 399
Bi-Xenon type*
Front lamp bulbs 349
Block heater (Canada only) 291
Blocking
Rear door window operation 75
Bolts
For spare wheel 336Brake Assist System see BAS
Brake fluid 390
Checking 277
Message in display 315
Brake lamp bulbs 345
Brake lamp, high mounted 345
Brake lamps
Messages in display 323
Brake pads
Message in display 315
Brakes 266
Warning lamp 25, 303
Break-in period 264
Bulbs, replacing 344
Additional turn signals 345
Backup lamps 345, 351
Brake lamps 345, 351
Fog lamp, rear 345, 351
Fog lamps, front 345
Front lamps 345
High beam flasher 345
High beam headlamps 345