2008 MERCEDES-BENZ C300 tires

392 Practical hints
What to do if …?
Display Possible cause/consequencePossible solution
Shift
to PYou have turned off the engine with the
KEYLESS-GO* start/stop button (Canada only) in
gear selector lever positionN and opened the driv-
er’s door.
or
You have attempted to switch off the engine with the
KEYLESS-GO* start/stop button (Canada only) while
the gear selector lever was in positionR orD.Place the gear selector lever in positionP.
Shift to P or N
To Start EngineYou have attempted to start the engine while the au-
tomatic transmission* was set to position R or D.Move the gear selector lever to position P or N
(
page 140).
Tire Press. Monitor
Inoperative
(USA only)
The TPMS is malfunctioning.Have the TPMS checked at an authorized
Mercedes-Benz Center.
Wheel Sensors Error
Tire Pressure Monitor
Inoperative
(USA only)
There are wheels without appropriate wheel sensors
mounted (e.g. winter tires).Have the TPMS checked at an authorized
Mercedes-Benz Center.
Have the wheel sensors installed at an autho-
rized Mercedes-Benz Center.
Tire Press. Monitor
Currently Unavailable
(USA only)
The TPMS is unable to monitor the tire pressure due
to a nearby radio interference source.As soon as the causes of the malfunction have
been removed, the TPMS automatically be-
comes active again after a few minutes driving.

418 Practical hints
What to do if …?
Display Possible cause/consequencePossible solution
LTele Aid
InoperativeOne or more main functions of the Tele Aid*
system are malfunctioning.Have the Tele Aid* system checked at an au-
thorized Mercedes-Benz Center.
HCorrect
Tire Pressure
(USA only)
The tire pressure is too low in one or more
tires.Check and correct tire inflation pressure as
required (
page 339).
Tire Press. Warning
Caution
Tire Malfunction
(USA only)
One or more tires are deflating.Carefully bring the vehicle to a halt, avoiding
abrupt steering and braking maneuvers.
If necessary, change the wheel (page 440).
Check
Tire Pressure
(USA only)
The tire pressure in one or more tires is al-
ready below the minimum value.Carefully bring the vehicle to a halt, avoiding
abrupt steering and braking maneuvers.
Check and adjust tire pressure as required
(
page 339).
If necessary, change the wheel (page 440).
Warning!G
Do not drive with a flat tire. A flat tire affects
the ability to steer or brake the vehicle. You
may lose control of the vehicle. Continued
driving with a flat tire will cause excessive
heat build-up and possibly a fire.

459 Technical data
Parts service
Warranty coverage
Identification labels
Layout of poly-V-belt drive
Engine
Rims and tires
Electrical system
Main dimensions and weights
Fuels, coolants, lubricants, etc.

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

470 Technical data
Rims and tires
ModelC 350 Sport*
C 350 4MATIC Sport*1C 300 Sport*
C 300 4MATIC Sport*
C 350 Sport*
C 350 4MATIC Sport*
1
1Canada only.
Front axle:
AMG rims (light alloy)7.5 J x 17 H28Jx18H2
Wheel offset1.85 in (47 mm)1.97 in (50 mm)
Summer tires2
2Radial-ply tires.
–225/40 ZR18 92Y XL (Extra Load)
All-season tires2225/45 R17 91H M+S–
Rear axle:
AMG rims (light alloy)8.5 J x 17 H28.5Jx18H2
Wheel offset2.28 in (58 mm)2.13 in (54 mm)
Summer tires2,3
3Must not be used with snow chains.
–255/35 ZR18 94Y XL (Extra Load)
All-season tires2245/40 R17 91H M+S–

471 Technical data
Rims and tires
Minispare wheel
ModelC 2301
C 230 Sport1
C 230 4MATIC1
C 230 4MATIC Sport1
C 300
C 300 Sport
C 300 4MATIC
C 300 4MATIC Sport
1Canada only.
C 3501
C 350 Sport
C 350 4MATIC1
C 350 4MATIC Sport1
Rim (steel)3.5 B x 16 H23.5 B x 17 H2
Wheel offset0.79 in (20 mm)0.79 in (20 mm)
Tire2
2Must not be used with snow chains.
T 125/90 R16 98MT 125/80 R17 99M