wheel size MERCEDES-BENZ CLK350 2007 A209 User Guide

342 Operation
Tires and wheels
DOT, Tire Identification Number (TIN)
U.S. tire regulations require each new tire
manufacturer or tire retreader to mold a
TIN into or onto a sidewall of each tire
produced.
The TIN is a unique identifier which facili-
tates efforts by tire manufactures to notify
purchasers in recall situations or other
safety matters concerning tires and gives
purchasers the means to easily identify
such tires.
The TIN is comprised of “Manufacturer’s
identification mark”, “Tire size”, “Tire type
code” and “Date of manufacture”.1DOT
2Manufacturer’s identification mark
3Tire size
4Tire type code (at the option of the tire
manufacturer)
5Date of manufactureDOT (Department of Transportation)
A tire branding symbol1 (
page 342)
which denotes the tire meets require-
ments of the U.S. Department of Transpor-
tation.
Manufacturer’s identification mark
The manufacturer’s identification mark2
(
page 342) denotes the tire
manufacturer.
New tires have a mark with two symbols.
Retreaded tires have a mark with four sym-
bols. For more information on retreaded
tires, see (
page 323).
Tire size
The code3 (
page 342) indicates the
tire size.
iFor illustration purposes only. Actual data
on tires are specific to each vehicle and may vary
from data shown in above illustration.

349 Operation
Tires and wheels
TIN (Tire Identification Number)
Unique identifier which facilitates efforts
by tire manufacturers to notify purchasers
in recall situations or other safety matters
concerning tires and gives purchases the
means to easily identify such tires. The TIN
is comprised of “Manufacturer’s identifica-
tion mark”, “Tire size”, “Tire type code”
and “Date of manufacture”.
Tire load rating
Numerical code associated with the
maximum load a tire can support.
Tire ply composition and material used
This indicates the number of plies or the
number of layers of rubber-coated fabric in
the tire tread and sidewall. Tire manufac-
turers also must indicate the ply materials
in the tire and sidewall, which include
steel, nylon, polyester, and others.Tire speed rating
Part of tire designation; indicates the
speed range for which a tire is approved.
Traction
Force exerted by the vehicle on the road
via the tires. The amount of grip provided.
Tread
The portion of a tire that comes into
contact with the road.
Treadwear indicators
Narrow bands, sometimes called
“wear bars” that show across the tread of
a tire when only
1/16in (1.6 mm) of tread
remains.Uniform Tire Quality Grading Standards
A tire information system that provides
consumers with ratings for a tire's traction,
temperature and treadwear. Ratings are
determined by tire manufacturers using
government testing procedures. The
ratings are molded into the sidewall of the
tire.
Vehicle maximum load on the tire
Load on an individual tire that is
determined by distributing to each axle its
share of the maximum loaded vehicle
weight and dividing it by two.

350 Operation
Tires and wheels
Rotating tires
Tire rotation can be performed on vehicles
with tires of the same dimension all
around. If your vehicle is equipped with
tires of the same dimension all around,
tires can be rotated, observing a a
front-to-rear rotation pattern that will
maintain the intended rotation (spinning)
direction of the tire (
page 326).
In some cases, such as when your vehicle
is equipped with mixed-size tires (different
tire dimension front vs. rear), tire rotation
is not possible.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 326).
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 404) and
(
page 436).
Warning!G
Rotate front and rear wheels only if the tires
are of the same dimension.
If your vehicle is equipped with mixed-size
tires (different tire dimensions front vs.
rear), tire rotation is not possible.
Warning!G
Have the tightening torque checked after
changing a wheel. Wheels could become
loose if not tightened with a torque of
80 lb-ft (110 Nm).
Only use Genuine Mercedes-Benz wheel
bolts specified for your vehicle’s rims.

352 Operation
Winter driving
Block heater (Canada only)
The engine is equipped with a block
heater.
The electrical cable may be installed at an
authorized Mercedes-Benz Center.
Snow chains
Snow chains should only be driven on
snow-covered roads at speeds not higher
than 30 mph (50 km/h). Remove chains
as soon as possible when driving on roads
without snow.
Please observe the following guidelines
when using snow chains:

Using snow chains is not permissible
with all wheel/tire combinations
(
page 466).

Use snow chains in pairs and on rear
wheels only. Follow the manufacturer's
mounting instructions.

Only use snow chains that are
approved by Mercedes-Benz. Any
authorized Mercedes-Benz Center will
be glad to advise you on this subject.

Use of snow chains may be prohibited
depending on location. Always check
local and state laws before installing
snow chains.

Do not use snow chains on the spare
wheel (
page 469).
Warning!G
If you use your spare tire when winter tires
are fitted on the other wheels, be aware that
the difference in tire characteristics may
very well impair turning stability and that
overall driving stability may be reduced.
Adapt your driving style accordingly.
Have the spare tire replaced with a winter
tire at the nearest authorized
Mercedes-Benz Center.!Some tire sizes do not leave adequate clear-
ance for snow chains. To help avoid serious dam-
age to your vehicle or tires, make sure that the
use of snow chains is permissible as specified in
the "Technical data" section of this Operator’s
Manual, see “Rims and tires” (
page 466).
!If snow chains are mounted to the front
wheels, they may scrape against the body or axle
components. The tires or the vehicle could be
damaged as a result.
iWhen driving with snow chains, you may
wish to deactivate the ESP® (page 92) before
setting the vehicle in motion. This will improve
the vehicle‘s traction.
CLK 63 AMG:
Do not switch off the ESP
® when driving in snow
or with snow chains mounted.

441 Practical hints
Flat tire
Mounting the Minispare wheel Preparing the vehicle
Prepare the vehicle as described on
(
page 436).
Take the wheel wrench, alignment bolt,
collapsible wheel chock, and the jack
out of the trunk (
page 407).
Take the Minispare wheel and wheel
bolts out of the trunk (
page 407).Lifting the vehicle
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 404).
When changing wheel on a level surface:
Place the wheel chock in front of and
another sizeable object behind the
wheel that is diagonally opposite to the
wheel being changed.
Always try lifting the vehicle using the jack
on a level surface. However, should cir-
cumstances require you to do so on a hill,
place the wheel chock and the other size-
able object as follows:
Place the wheel chock and another
sizeable object on the downhill side
blocking both wheels of the axle not
being worked on.
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. Adapt your driving style
accordingly.
The spare wheel is for temporary use only.
When driving with spare wheel mounted,
ensure proper tire inflation pressure and do
not exceed 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 Minispare wheel mounted.
Do not switch off the ESP
® when a Minis-
pare wheel is mounted.

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

MO = Mercedes-Benz Original equipment
tires
AMG vehicles:
Does not apply to all approved tires on AMG
vehicles. For information on tested and ap-
proved tires for AMG vehicles, contact an au-
thorized Mercedes-Benz Center.

MOE = Mercedes-Benz Original Extended
(tires with limited run-flat characteristics)
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.
iFor information on driving with MOExtended
tires, see “MOExtended system*” (
page 336).
!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 Cen-
ter. A placard with the recommended tire infla-
tion pressures is located on the driver’s door
B-pillar. Some vehicles may have supplemental
tire inflation pressure information for driving at
high speeds (
page 332) or for vehicle loads
less than the maximum loaded vehicle condition
(
page 331).If such information is provided, it can be found
on the placard 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 mainte-
nance recommendation included with vehicle.
iThe following pages also list the approved
wheel rim and tire sizes for equipping your vehi-
cles with winter tires. Winter tires are not avail-
able as standard or optional factory equipment,
but can be purchased from an authorized
Mercedes-Benz Center.
Depending on vehicle model and the standard or
optional factory-equipped wheel rim/tire config-
uration 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. See an authorized Mercedes-Benz
Center for more information.

467 Technical data
Rims and tires
Same size tires
ModelCLK 350CLK 550
Rims (light alloy)7.5 J x 17 H27.5 J x 17 H2
Wheel offset1.42 in (36 mm)1.45 in (37 mm)
Winter tires1,3
1Radial-ply tires
225/45 R17 91 H M+S.225/45 R17 91 H M+S.
Winter tires1,2,3
2Must be used in conjunction with Run Flat Indicator* only. 3Not available as factory equipment.
225/45 R17 91 H M+S.MOExtended225/45 R17 91 H M+S.MOExtended
ModelCLK 63 AMG
Rims (light alloy)8 J x 18 H2
Wheel offset1.34 in (34 mm)
Winter tires1,2,3225/40 R18 92 V XL (Extra Load) M+S.
1Radial-ply tires2Not available as factory equipment.3For use with snow chains contact an authorized Mercedes-Benz Center.

468 Technical data
Rims and tires
Mixed size tires
ModelCLK 350CLK 550CLK 63 AMG
Front axle:
Rims (light alloy)7.5 J x 17 H27.5 J x 17 H28 J x 18 H2
Wheel offset1.42 in (36 mm)1.46 in (37 mm)1.34 in (34 mm)
Summer tires1
1Radial-ply tires
225/45 R17 91W225/45 ZR17 91W225/40 ZR18 92Y XL (Extra Load)
Summer tires*1,2
2Must be used in conjunction with Run Flat Indicator* only.
225/45 R17 91W MOExtended225/45 R17 91W MOExtended -
Rear axle:
Rims (light alloy)8.5 J x17 H28.5 J x17 H28.5 J x18 H2
Wheel offset1.18 in (30 mm)1.18 in (30 mm)1.18 in (30 mm)
Summer tires1,3
3Must not be used with snow chains.
245/40 R17 91W245/40 ZR17 91W255/35 ZR18 94Y XL (Extra Load)
Summer tires*1,2,3245/40 R17 91W MOExtended245/40 R17 91W MOExtended -

496 Index
Service, Parts 460
Settings
Control system menus 142
Control system submenus 143
Date 159, 160
Factory, KEYLESS-GO* 104
Factory, SmartKey 100
Global, KEYLESS-GO* 104
Global, SmartKey 100
Individual vehicle 153
Memory function 124
Menus and submenus 141
Resetting all, Control system 153
Selective, KEYLESS-GO* 105
Selective, SmartKey 100
Time 158
Shelf below rear window, Cleaning 363
Shift program mode,
Automatic transmission 176
Shifting
Gear selector lever 50
Shifting,
Automatic transmission 53, 170Side marker lamps
Cleaning lenses 361
Messages in display 399
Replacing bulbs 428
Side windows see Power windows
Sidewall 348
Ski sack* (Canada only) 271
Removing 274
Ski sack roller blind 271, 274
Unfolding and loading 271
Unloading and folding 273
SmartKey see Key, SmartKey 98
SmartKey with KEYLESS-GO* see
KEYLESS-GO*
Snow chains 352
Snow tires 351
Soft top 255
Cleaning 359
Emergency operations 415–423
Locking after raising/lowering 258
Luggage cover 260
Messages in display 402
Opening/closing 255
Opening/closing,
SmartKey 259Opening/closing,
Soft top switch 256, 257
Wind screen 261
Soft top switch 254, 256
Sound system* 211, 215
Spare fuses 404, 456
Spare parts service see Parts service
Spare wheel 407
Bolts 404, 409
Mounting 441
Sizes 469
Speedometer 27, 156
SRS 65, 77
Indicator lamp 27, 65, 375
Standard display, Selecting display 157
Standing lamps 126
Replacing bulbs 428, 431, 432
Standing water, Driving through 309
Starter switch 25, 36
Positions 36
Starting difficulties, Engine 52
Starting, Engine 50
Status line, Selecting display 157
Steering column 43
Steering gear oil
Message in display 402

497 Index
Steering wheel 43
Buttons 28
Cleaning 363
Lock 52
Steering wheel gearshift control
one-touch gearshifting*
Automatic transmission 179
Stolen Vehicle Recovery services 293
Storage box 276
Storage compartments 276
Armrest, Front 278
Armrest, Rear 279
Cup holder 279
Glove box 276
Parcel net 277
Storage bags 277
Storage box 276
Telephone* 278
Storing
Tires 325
Submenus see
Control system submenus 141
Sun visors 186
Symbols used
in this operator’s manual 15T
Tachometer 27, 138
Overspeed range 138
Tail lamps
Cleaning lenses 361
Messages in display 399
Replacing bulbs 428, 432
Tar stains 357
Technical data
Air conditioning refrigerant 474
Brake fluid 475
Capacities fuels, coolants,
lubricants etc. 472, 473
Coolant 473, 477
Electrical system 470
Engine 465
Engine oil 474
Engine oil additives 474
Fuel capacity 473
Fuel requirements 476
Gasoline additives 476
Lubricants 472
Premium unleaded gasoline 475
Rims and tires 466
Tires, Mixed size 468
Tires, Same size 467Tires, Spare wheel sizes 469
Vehicle dimensions 471
Weights 471
Windshield washer and headlamp
cleaning* system 473, 479
Tele Aid 31, 287
Call priority 292
Emergency calls 288
Hands-free microphone 31
Information 291
Initiating an
emergency call manually 289
Messages in display 401
Remote door unlock 292
Roadside Assistance 290
SOS button 289
Stolen Vehicle
Recovery services 293
System self-check 287
Tele Aid System 287