wheel bolts MERCEDES-BENZ CLS500 2008 W219 Owner's Manual

293 Operation
Tires and wheels
Tires and wheels
Contact an authorized Mercedes-Benz
Center for information on tested and rec-
ommended rims and tires for summer and
winter operation. They can also offer ad-
vice concerning tire service and purchase.
Important guidelines

Only use sets of tires and rims of the
same type and make.

Tires must be of the correct size for the
rim.

Break in new tires for approximately
60 miles (100 km) at moderate
speeds.

Regularly check the tires and rims for
damage. Dented or bent rims can
cause tire inflation pressure loss and
damage to the tire beads.

If vehicle is heavily loaded, check tire
inflation pressure and correct as re-
quired.

Do not allow your tires to wear down
too far. Adhesion properties on wet
roads are sharply reduced at tread
depths of less than
1/8in (3 mm).

The wheels on the front and rear axles
are different. For this reason, pay at-
tention to the markings on the inside of
the wheel rims. Wheels marked “REAR
AXLE ONLY” on the inside of the rim
may only be fitted on the rear axle.

When replacing individual tires, you
should mount new tires on the front
wheels first (on vehicles with
same-sized wheels all around).
Warning!G
Replace rims or tires with the same designa-
tion, manufacturer and type as shown on the
original part. See an authorized
Mercedes-Benz Center for further informa-
tion. If incorrectly sized rims and tires are
mounted:

The wheel brakes or suspension compo-
nents can be damaged.

The correct operating clearance of the
wheels and the tires are no longer guar-
anteed.
Warning!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, only use genuine
Mercedes-Benz wheel bolts specified for the
particular rim type. Failure to do so can re-
sult in the bolts loosening and possibly an
accident.
Retreaded tires are not tested or recom-
mended by Mercedes-Benz, since previous
damage cannot always be recognized on re-
treads. The operating safety of the vehicle
cannot be assured when such tires are used.

327 Operation
Tires and wheels
If applicable to your vehicle’s tire configu-
ration, tires can be rotated according to
the tire manufacturer’s recommended in-
tervals in the tire manufacturer’s warranty
pamphlet located in your vehicle literature
portfolio. If none is available, tires should
be rotated every 3 000 to 6 000 miles
(5 000 to 10 000 km), or sooner if neces-
sary, according to the degree of tire wear.
The same rotation (spinning) direction
must be maintained (
page 295).Rotate tires before the characteristic tire
wear pattern becomes visible (shoulder
wear on front tires and tread center wear
on rear tires).
Thoroughly clean the mounting face of
wheels and brake disks, i.e. the inner side
of the wheels/tires, during each rotation.
Check for and ensure proper tire inflation
pressure.
For information on wheel change, see the
“Practical hints” section (
page 393) and
(
page 412).
Warning!G
Have the tightening torque checked after
changing a wheel. Wheels could become
loose if not tightened with a torque of
96 lb-ft (130 Nm).
Only use Genuine Mercedes-Benz wheel
bolts specified for your vehicle’s rims.

397 Practical hints
Where will I find...?
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 plateTilt both plates upward1.
Fold the lower plate outward2.
Guide the tabs of the lower plate all the
way into the openings of base plate3.
For information on where to place wheel
chocks when changing a wheel, see “Lift-
ing the vehicle” (
page 413).
Luggage box
Remove luggage box
1Fastening clip
2Luggage box
Turn fastening clips1 to the left up-
wards from fastening bolts.
Lift luggage box in the area of the fas-
tening bolts and remove it from trunk.
Install luggage box
Insert luggage box into trunk so that
fastening clips are in line with fastening
bolts.
Push front edge of luggage box in direc-
tion of arrow under cover of trunk sill.
Press fastening clips onto fastening
bolts until they lock into place.

414 Practical hints
Flat tire
1Wheel wrench
On wheel to be changed, loosen but do
not yet remove the wheel bolts (ap-
proximately one full turn with wheel
wrench1).
The jack take-up brackets are located di-
rectly behind the front wheel housings and
in front of the rear wheel housings.1Jack take-up bracket
2Jack
Place jack2 on firm ground.
Position jack2 under take-up
bracket1 so that it is always vertical
(plumb-line) as seen from the side,
even if the vehicle is parked on an
incline.
Warning!G
The jack is designed exclusively for jacking
up the vehicle at the jack take-up brackets
built into either 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 not disengage parking brake while the
vehicle is raised. Be certain that the jack is
always vertical (plumb line) when in use, es-
pecially 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. Al-
ways lower the vehicle onto sufficient ca-
pacity jackstands before working under the
vehicle.

415 Practical hints
Flat tire
Jack up the vehicle until the wheel is a
maximum of 1.2 in (3 cm) from the
ground. Never start engine while
vehicle is raised.Removing the wheel
1Alignment bolt
Unscrew the upper-most wheel bolt
and remove.
Replace this wheel bolt with alignment
bolt1 supplied in the tool kit.
Remove the remaining bolts.
Remove the wheel.Mounting the spare wheel
Clean contact surfaces of wheel and
wheel hub.
Guide the spare wheel onto the align-
ment bolt and push it on.
Insert wheel bolts and tighten them
slightly.
Warning!G
The jack is intended only for lifting the
vehicle briefly for wheel changes. It is not
suited for performing maintenance work
under the vehicle.

Never start the engine when the vehicle
is raised.

Never lie down under the raised vehicle.
!Do not place wheel bolts in sand or dirt. This
could result in damage to the bolt and wheel hub
threads.
Warning!G
Vehicles with collapsible tire:
Inflate collapsible tire only after the wheel is
properly mounted.
Inflate the collapsible tire using the electric
pump (
page 416) before lowering the
vehicle.
!To avoid paint damage, place wheel flat
against hub and hold it there while installing first
wheel bolt.

416 Practical hints
Flat tire
Unscrew the alignment bolt, install last
wheel bolt and tighten slightly.
Vehicles with Minispare wheel:
Continue the procedure by following
the instructions under “Lowering the
vehicle” (
page 418).
Vehicles with collapsible tire:
Continue the procedure by following
the instructions under “Inflating the
collapsible tire” and then “Lowering the
vehicle” (
page 418).Inflating the collapsible tire
Take the electric air pump out of the
trunk (
page 393).
Warning!G
Always replace wheel bolts that are dam-
aged 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. Be
sure to use the correct wheel bolts.
Warning!G
Only use genuine Mercedes-Benz wheel
bolts. Other wheel bolts may come loose.
Do not tighten the wheel bolts when the
vehicle is raised. Otherwise the vehicle
could fall off the jack.
!Do not lower the vehicle before inflating the
collapsible tire. Otherwise the rim may be dam-
aged.
Warning!G
Observe instructions on air pump label.

418 Practical hints
Flat tire
Detach the electric air pump.
Stow electrical plug3 and air hose4
behind flap1 and place the air pump
back in the trunk.Lowering the vehicle
Lower vehicle by turning crank coun-
terclockwise until vehicle is resting ful-
ly on its own weight.
Remove the jack.
1-5 Wheel bolts
Tighten the five wheel bolts evenly, fol-
lowing the diagonal sequence illustrat-
ed (1 to 5), until all bolts are tight.
Observe a tightening torque of 96 lb-ft
(130 Nm).
Before storing the jack in the trunk, it
should be fully collapsed.
Warning!G
Follow recommend inflation pressures.
Do not overinflate tires. Overinflating tires
can result in sudden deflation (blowout)
because they are more likely to become
punctured or damaged by road debris,
potholes, etc.
Do not underinflate tires. Underinflated tires
wear unevenly, adversely affect handling
and fuel economy, and are more likely to fail
from being overheated.
iVehicles with Advanced TPMS*:
Do not activate the tire inflation pressure moni-
tor (
page 309) until a full size wheel/tire with
functioning sensor has been placed back into
service on the vehicle.
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).
iWrap the damaged wheel in the protective
film that comes with the spare wheel and put the
wheel in the trunk.
You can also place the damaged wheel down into
the spare wheel well. In this case, you must stow
the luggage bowl in the trunk.


473 Index
Temperature
Engine 54
Interior temperature 195
Outside temperature 156
Tether anchorage points, see Children in
the vehicle
Tie-down hooks, Trunk 242
Tightening torque, Wheel bolts 418
Time
Setting 157
Synchronizing 157
TIN 325
Tire and Loading Information
Placard 296
Terminology 323
Tire inflation pressure
Checking 301
Placard on the fuel filler flap 297
Tire Pressure Monitoring System (TPMS),
(USA only)
Checking tire pressure
electronically 306
Tires
Advanced Tire Pressure Monitoring
System* (Advanced TPMS*) (Canada
only) 309Advanced TPMS* malfunction
telltale 354
Air pressure 301
Care and maintenance 294
Cleaning 295
Combination low tire pressure/TPMS
malfunction telltale, USA only 27
Direction of rotation, Spinning 295
Driving instructions 275
Important notes, Tire inflation
pressure 302
Inflation pressure 301, 303
Information placard 297
Inspection 294
Load rating 325
Low tire pressure telltale* (Canada
only) 27, 354
Messages in display 369, 390
MOExtended* 313, 419
Ply composition and material
used 325
Problems with
under-/overinflation 313
Retreads 293
Rims and tires 438
Rotation 326Service life 294
Sizes 439
Snow 328
Snow chains 329
Spare wheel 393
Speed rating 316, 326
Storing 295
Temperature 302, 322
Terminology 323
Tire Identification Number see TIN
Tire Pressure Monitoring System
(TPMS) (USA only) 306
TPMS malfunction telltale 354
Traction 276, 322, 326
Tread 326
Tread depth 294, 328
Treadwear indicators 326
Vehicle maximum load on 326
Wear pattern 327
Winter 328
Tools 395
Top tether
Children in the vehicle 85
Total load limit 326
Towing eye bolt 426
Towing the vehicle 425