Page 84 of 406

81 Restraint systems
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Safety guidelines for the seat belt, emergency
tensioning retractor and airbag
Wa r n i n g !
• Damaged seat belts or belts that were highly
stressed in an accident must be replaced and
their anchoring points must also be checked.
Use only belts installed or supplied by an
authorized Mercedes-Benz Center.• Airbags and “ETR’s” are designed to function
on a one-time-only basis. An airbag or
emergency tensioning retractor (ETR) that was
activated must be replaced.
• No modifications of any kind may be made to
any components or wiring of the “SRS”. This
includes changing or removing any component
or part of the “SRS”, the installation of
additional trim material, badges etc. over the
steering wheel hub, front passenger airbag
cover, door trim panels, or door frame trims,
and installation of additional electrical /
electronic equipment on or near “SRS”
components and wiring. Keep area between
airbags and occupants free from objects (e.g.
packages, purses, umbrellas, etc).• Do not pass belts over sharp edges.• Do not make any modification that could
change the effectiveness of the belts.
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Page 331 of 406

328 Tires, Wheels
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index
Wheels
Replace rims or tires with the same designation,
manufacturer and type as shown on the original part.
See your authorized Mercedes-Benz Center for further
information.
See your authorized Mercedes-Benz Center for
information on tested and recommended rims and tires
for summer and winter operation. They can also offer
advice concerning tire service and purchase.
Tire replacement
Front and rear tires should be replaced in sets. Rims
and tires must be of the correct size and type. For
dimensions, see “Technical Data”.
We recommend that you break in new tires for
approximately 60 miles (100 km) at moderate speed.
Wa r n i n g !
The jack is designed exclusively for jacking up the
vehi c le a t the j ack take-up b ra ckets b ui lt i nto eit her
side of 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
supported by the jack. Keep hands and feet away
from the area under the lifted vehicle. Always
firmly set parking brake and block wheels before
raising vehicle with jack.Do n ot d is engage parki n g brake w hil e t he vehi c le i s
raised. Be certain that the jack is always vertical
when in use, especially on hills. Always try to use
the jack on level surface. Be sure that the jack arm
is fully seated in the jack take-up bracket. Always
lower the vehicle onto sufficient capacity
jackstands before working under the vehicle.
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Page 332 of 406

329 Tires, Wheels
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index It is imperative that the wheel mounting bolts be
fastened to a tightening torque of 80 ft.lb. (110 Nm)
whenever wheels are mounted.
For rim and tire specifications, refer to “Technical Data”.Rotating wheels
The wheels can be rotated according to the degree of
tire wear while retaining the same direction of travel.
Rotating, however, should be carried out as
recommended by the tire manufacturer, before the
characteristic tire wear pattern (shoulder wear on front
wheels and tread center wear on rear wheels) becomes
visible, as otherwise the driving properties deteriorate.
Notes:
Thoroughly clean the inner side of the wheels any time
you rotate the wheels or wash the vehicle underside.
The use of retread tires is not recommended. Retread
tires may adversely affect the handling characteristics
and safety of the vehicle.
Dented or bent rims can cause tire pressure loss and
damage to the tire beads. For this reason, check rims for
damage at regular intervals. The rim flanges must be
checked for wear before a tire is mounted. Remove
burrs, if any.
Check and ensure proper tire inflation pressure after
rotating the wheels. For tire inflation pressure see
inside of fuel filler flap and also page 282.
Wa r n i n g !
Worn, old tires can cause accidents. If the tire tread
is badly worn, or if the tires have sustained
damage, replace them.When replacing rims, use only genuine
Mercedes-Benz wheel bolts specified for the
particular rim type. Failure to do so can result in
the bolts loosening and possibly an accident.
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Page 333 of 406
330 Tires, Wheels
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index
Spare wheel
Important!
The spare wheel rim is mounted with a full size tire of
the same type as on the vehicle, and is fully functional.
For additional information, refer to page 378.
Spare wheel bolts
1Wheel bolt for light alloy rims
2Wheel bolt for steel rims
Note:
Wheel bolts (2) must be used when mounting steel
wheel rim.
Wa r n i n g !
Be sure to use the original length wheel bolts when
remounting the original wheel after it has been
repaired.
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Page 335 of 406
332 Tires, Wheels
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index
4. Vehicles with steel rims (Canada only)
Removal of wheel cover:
Reach into two opening of the wheel cover and pull. 5. Remove the two-piece wheel wrench from the
vehicle tool kit and assemble (see page 327).
6. Using the wrench, loosen but do not yet remove the
wheel bolts.
P 40.10-2426-26
P 40.10-2427-26
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Page 337 of 406
334 Tires, Wheels
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index
1Wheel bolt for light alloy rims
2Wheel bolt for steel rims11. Clean contact surfaces of wheel and wheel hub.
Install wheel on wheel hub. Insert wheel bolts and
tighten them slightly.
To avoid paint damage, place wheel flat against hub
and hold it there while installing first wheel bolt.
Unscrew the alignment bolt to install the last wheel
bolt.
P 40.10-2429-26
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Page 339 of 406

336 Tires, Wheels
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index
14. Vehicles with steel rims (Canada only)
Installation of wheel cover:
Position small wheel cover opening over tire valve
and press wheel cover against wheel rim. Now press
(do not hit) opposite side of wheel cover against
wheel rim until seated. Make certain that the
springs of the wheel cover are firmly seated in the
outer rim of the steel wheel.Notes:
Before storing the jack, it should be fully collapsed, with
handle folded in.
For proper storage of vehicle jack see page 325.
P 40.10-2432-26
Wa r n i n 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.Incorrect mounting bolts or improperly tightened
mounting bolts can cause the wheel to come off.
This could cause an accident. Be sure to use the
correct mounting bolts.
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Page 381 of 406

378 Technical data
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index
Rims — Tires
Model C 240 (203.061)C 320 (203.064)C 240 (Canada only)C 32 AMG (203.065)
Rims (light alloy)
Wheel offset:7J x 16 H2
1.46 in (37 mm)7J x 16 H2
1.46 in (37 mm)(steel rims) 7J x 16 H2
1. 4 6 i n ( 3 7 m m )Front axle: 71/2Jx17H2
Rear axle: 8
1/2Jx17H2
Front axle: 1.46 in (37 mm)
Rear axle: 1.34 in (34 mm)
All season tires:
Radial-ply tires 205/55 R16 91 H 205/55 R16 91 H 205/55 R 16 91 H –
Summer tires:
Radial-ply tires – – – Front axle: 225/45 R 17 91 Y3
Rear axle: 245/40 R 17 91 Y2,
4
Winter tires:
Radial-ply tires 205/55 R16 91 H
M+S205/55 R16 91 H
M+S205/55 R 16 91 H
M+S–
Spare wheel
Rim (steel rim)
Wheel offset:7J x 16 H2
1.46 in (37 mm)7J x 16 H2
1.46 in (37 mm)7J x 16 H2
1. 4 6 i n ( 3 7 m m )–
–
All season tires:
Radial-ply tires 205/55 R16 91 H 205/55 R16 91 H 205/55 R16 91 H –
2 Must not be used with snow chains. 3 Also permissible: 225/45 ZR 17 91 Y. 4 Also permissible: 245/40 ZR 17 91 Y2.
OM_203.book Seite 378 Donnerstag, 31. Mai 2001 11:57 11