2008 MERCEDES-BENZ C300 tire size

384 Practical hints
What to do if …?
Warning!G
Each tire, including the spare (if provided),
should be checked monthly when cold and
inflated to the inflation pressure recom-
mended by the vehicle manufacturer on the
Tire and Loading Information placard on the
driver’s door B-pillar (
page 334) or, if
available, the tire inflation pressure label on
the inside of the fuel filler flap (
page 322).
If your vehicle has tires of a different size
than the size indicated on the Tire and
Loading Information placard or the tire
inflation pressure label, you should deter-
mine the proper tire inflation pressure for
those tires.
As an added safety feature, your vehicle has
been equipped with a tire pressure monitor-
ing system (TPMS) that illuminates a low tire
pressure telltale when one or more of your
tires is significantly underinflated. Accord-
ingly, when the low tire pressure telltale illu-
minates, you should stop and check your
tires as soon as possible, and inflate them to
the proper pressure. Driving on a significant-
ly underinflated tire causes the tire to over-
heat and can lead to tire failure.
Underinflation also reduces fuel efficiency
and tire tread life, and may affect the vehi-
cle’s handling and stopping ability. Please
note that the TPMS is not a substitute for
proper tire maintenance, and it is the driv-
er’s responsibility to maintain correct tire
pressure, even if underinflation has not
reached the level to trigger illumination of
the TPMS low tire pressure telltale.Your vehicle has also been equipped with a
TPMS malfunction indicator to indicate
when the system is not operating properly.
The TPMS malfunction indicator is com-
bined with the low tire pressure telltale.
When the system detects a malfunction, the
telltale will flash for approximately 1 minute
and then remain continuously illuminated.
This sequence will continue upon subse-
quent vehicle start-ups as long as the mal-
function exists. When the malfunction
indicator is illuminated, the system may not
be able to detect or signal low tire pressure
as intended.
TPMS malfunctions may occur for a variety
of reasons, including the installation of
replacement or alternate tires or wheels on
the vehicle that prevent the TPMS from
functioning properly. Always check the
TPMS malfunction telltale after replacing
one or more tires or wheels on your vehicle
to ensure that the replacement or alternate
tires and wheels allow the TPMS to continue
to function properly.

441 Practical hints
Flat tire
Mounting the Minispare wheel
Preparing the vehicle
Prepare the vehicle as described
(
page 440).
Take vehicle tool kit tray and vehicle
jack out of trunk (
page 420).
Take the Minispare wheel from the
wheel well under the trunk floor
(
page 422).Lifting the vehicle
Warning!G
When jacking up the vehicle, only use the
jack which has been specifically approved
by Mercedes-Benz for your vehicle.
The jack is designed exclusively for jacking
up the vehicle at the jack take-up brackets
built into both sides of the vehicle. Make
sure the jack arm is fully seated in the jack
take-up bracket.
The jack is intended only for lifting the
vehicle briefly for wheel changes. It is not
suited for performing maintenance work
under the vehicle. To help avoid personal
injury, use the jack only to lift the vehicle
during a wheel change.
Never get beneath the vehicle while it is sup-
ported by the jack. Keep hands and feet
away from the area under the lifted vehicle.
Always lower the vehicle onto sufficient
capacity jackstands before working under
the vehicle.
Always firmly set the parking brake and
block wheels with wheel chocks or other
sizeable objects before raising vehicle with
jack. Do not release the parking brake while
the vehicle is raised.
Make sure that the ground on which the
vehicle is standing and where you place the
jack is solid, level and not slippery. If neces-
sary, use a large underlay. On slippery
surfaces, such as tiled floors, you should
use a non-slip underlay, for example a
rubber mat.
Do not use wooden blocks or similar objects
to support the jack. Otherwise the jack may
not be able to achieve its load-bearing
capacity if it is not at its full height.
Be certain that the jack is always vertical
(plumb line) when in use, especially on hills.
Always try to use the jack on level surface.
Never start the engine when the vehicle is
raised.
Also observe the notes on the jack.

442 Practical hints
Flat tire
Prevent the vehicle from rolling away
by blocking wheels with wheel chocks
or other sizeable objects.
One wheel chock is included with the
vehicle tool kit (
page 422).
Changing wheel on a level surface
Changing rear wheel on passenger side
(Example illustration)
Place the wheel chock in front of and
another sizeable object behind the
wheel that is diagonally opposite to the
wheel being changed.Changing wheel on a slight decline
Always try lifting the vehicle using the jack
on a level surface. However, should
circumstances require you to do so on a
slight decline, place the wheel chock and
another sizeable object as follows:
Changing wheel on passenger side
(Example illustration)
Place wheel chock (or another sizeable
object) in front of both wheels on the
side opposite to the side on which the
wheel is to be changed.Changing wheel on a slight incline
Always try lifting the vehicle using the jack
on a level surface. However, should
circumstances require you to do so on a
slight incline, place the wheel chock and
another sizeable object as follows:
Changing wheel on passenger side
(Example illustration)
Place wheel chock (or another sizeable
object) behind both wheels on the side
opposite to the side on which the wheel
is to be changed.

445 Practical hints
Flat tire
Guide the Minispare wheel onto the
wheel hub and push it on.
Insert wheel bolts and tighten them
slightly.
Lowering the vehicle
Lower vehicle by turning crank
counterclockwise until vehicle is
resting fully on its own weight.
Remove the jack.1 - 5 Wheel bolts
6 Wheel wrench
Tighten the five wheel bolts evenly,
following the diagonal sequence
illustrated (1 to 5), until all bolts are
tight. Observe a tightening torque of
96 lb-ft (130 Nm).
Before storing the jack, it should be fully
collapsed, with handle folded in (storage
position).
Store the jack and the other vehicle
tools in the designated storage space
underneath the trunk floor
(
page 420).
Warning!G
Have the tightening torque checked after
changing a wheel. The wheels could come
loose if they are not tightened to a torque of
96 lb-ft (130 Nm).
iVehicles with TPMS (USA only):
Do not activate the tire inflation pressure
monitor (
page 344) until a full size wheel/tire
with functioning sensor has been placed back
into service on the vehicle.

467 Technical data
Rims and tires
Rims and tires
!Only use tires which have been tested and
approved for your vehicle by Mercedes-Benz.
Tires approved by Mercedes-Benz are developed
to provide best possible performance in conjunc-
tion with the driving safety systems on your
vehicle such as ABS or ESP
®. Tires specially
developed for your vehicle and tested and
approved by Mercedes-Benz can be identified by
finding the following on the tire’s sidewall:

MO = Mercedes-Benz Original equipment
tires
Using tires other than those approved by
Mercedes-Benz may result in damage that is not
covered by the Mercedes-Benz Limited
Warranty.
!Using tires other than those approved by
Mercedes-Benz can have detrimental effects,
such as

poor handling characteristics

increased noise

increased fuel consumption
Moreover, tires and rims not approved by
Mercedes-Benz may, under load, exhibit dimen-
sional variations and different tire deformation
characteristics that could cause them to come
into contact with the vehicle body or axle parts.
Damage to the tires or the vehicle may be the
result.
iFurther information on tires and rims is
available at any authorized Mercedes-Benz
Center. A placard with the recommended tire
inflation pressures is located on the driver’s door
B-pillar (
page 334). Some vehicles may have
supplemental tire inflation pressure information
for driving at high speeds (
page 340) or for
vehicle loads less than the maximum loaded
vehicle condition (
page 348). If such informa-
tion is provided, it can be found on the tire infla-
tion label located on the inside of the fuel filler
flap. The tire inflation pressure should be checked
regularly and should only be adjusted on cold
tires. Follow tire manufacturer’s maintenance
recommendation included with vehicle.
iThe following pages also list the approved
wheel rim and tire sizes for equipping your
vehicles with winter tires. Winter tires are not
available as standard or optional factory equip-
ment, but can be purchased from an authorized
Mercedes-Benz Center.
Depending on vehicle model and the standard or
optional factory-equipped wheel rim/tire
configuration on your vehicle (Appearance
Package, Sport Package etc.), equipping your
vehicle with winter tires approved for your
vehicle model may also require the purchase of
two or four wheel rims of the recommended size
for use with these winter tires. Contact an autho-
rized Mercedes-Benz Center for more informa-
tion.

468 Technical data
Rims and tires
Same size tires
ModelC 2301
C 230 4MATIC1
1Canada only.
C 300
C 300 4MATICC 3501
C 350 4MATIC1
Rims (light alloy)7 J x16 H27.5 J x17 H27.5 J x17 H2
Wheel offset1.85 in (47 mm)1.85 in (47 mm)1.85 in (47 mm)
All-season tires2
2Radial-ply tires.
205/55 R16 91H M+S225/45 R17 91H M+S–
Winter tires2,3
3Not available as factory equipment.
205/55 R16 91H M+S.225/45 R17 91H M+S.225/45 R17 91H M+S.

469 Technical data
Rims and tires
Mixed size tires
ModelC 230 Sport1
C 230 4MATIC Sport1
C 300 Sport
C 300 4MATIC Sport
C 350
1
C 350 4MATIC1
1Canada only.
Front axle:
Rims (light alloy)7.5 J x 17 H2
Wheel offset1.85 in (47 mm)
All-season tires2
2Radial-ply tires.
225/45 R17 91H M+S
Rear axle:
Rims (light alloy)8.5 J x 17 H2
Wheel offset2.28 in (58 mm)
All-season tires2245/40 R17 91H M+S

504 Index
services 302
System self-check 296
Telephone* 28, 152
“911” emergency call
(Audio system) 231
Answering/ending a call 163
Hands-free microphone 31
Operation 160
Operation (Audio system) 222
Phone book 162
Redialing 163
Redialing (Instrument cluster control
system) 163
Switching on/off (Audio system) 226
Temperature
Display mode 158
Interior temperature 253
Outside temperature indicator 27
Tires 340
Tightening torque, Wheel bolts 445
Tilt/sliding sunroof see Power tilt/sliding
sunroof
Time 170
TIN 358
Tire and Loading Information
Placard 335Tire Identification Number see TIN
Tire inflation pressure
Air pressure 339, 356
Checking tire pressure electronically,
Tire Pressure Monitoring System
(TPMS), (USA only) 344
Tires 331
And Rims 467
And Wheels 331
Care and maintenance 332
Chains 361
Cleaning 333
Cold tire inflation pressure 356
Direction of rotation 334
Driving instructions 315
Important notes on tire inflation
pressure 340
Inflation pressure 339
Information placard 335
Inspection 332
Load rating 349, 358
Load rating, Maximum 353, 357
Low tire pressure telltale 383
Minispare wheel 422, 471
Ply composition and material
used 358Problems under-/overinflation 339
Retreads 331
Rotating 359
Run Flat Indicator*
(Canada only) 342
Service life 332
Sizes 467
Snow 360
Speed rating 316, 350, 358
Storing 333
Temperature 340, 355
Terminology 356
Tire Pressure Monitoring System
(TPMS)*, (USA only) 344
Total load limit 358
TPMS* (USA only) malfunction
telltale 383
Traction 316, 358
Tread depth 333
Tread depth, Winter 360
Treadwear indicators 358
Vehicle maximum load on 359
Wear pattern 359
Winter 360