2007 MERCEDES-BENZ CLK350 winter tires

340 Operation
Tires and wheels
Summer tires
At the tire manufacturer’s option, any
tire with a speed capability above
149 mph (240 km/h) can include a
“ZR” in the size designation (for exam-
ple: 245/40 ZR18). To determine the
maximum speed capability of the tire,
the service description for the tire must
be referred to. The service description
is comprised of the tire load rating5
(
page 337) and the tire speed
rating6 (
page 337).
If your tire includes “ZR” in the size
designation and no service
description5 and6 (
page 337) is
given, the tire manufacturer must be
consulted for the maximum speed ca-
pability.
If a service description5 and6
(
page 337) is given, the speed capa-
bility is limited by the speed symbol in
the service description.
Example: 245/40 ZR18 97Y.
In this example, “97Y” is the service
description. The letter “Y” designates the speed rating and the speed capabil-
ity of the tire is limited to 186 mph
(300 km/h).

Any tire with a speed capability above
186 mph (300 km/h) must include a
“ZR” in the size designation AND the
service description must be placed in
parenthesis. Example: 275/40 ZR 18
(99Y). The “(Y)” speed rating in paren-
thesis designates the maximum speed
capability of the tire as being above
186 mph (300 km/h). Consult the tire
manufacturer for the actual maximum
permissible speed of the tire.
All-season and winter tires
IndexSpeed rating
Qup to 100 mph (160 km/h)
Rup to 106 mph (170 km/h)
Sup to 112 mph (180 km/h)
Tup to 118 mph (190 km/h)
Hup to 130 mph (210 km/h)
Vup to 149 mph (240 km/h)
Wup to 168 mph (270 km/h)
Yup to 186 mph (300 km/h)
(Y)above 186 mph (300 km/h)
ZRabove 149 mph (240 km/h)
IndexSpeed rating
QM+S1
1or M+S.for winter tires
up to 100 mph (160 km/h)
TM+S1up to 118 mph (190 km/h)
HM+S1up to 130 mph (210 km/h)
VM+S1up to 149 mph (240 km/h)

351 Operation
Winter driving
Winter driving
Before the onset of winter, have your
vehicle winterized at an authorized
Mercedes-Benz Center. This service
includes:

Check of anticorrosion and antifreeze
concentration.

Addition of cleaning concentrate to the
water of the windshield and headlamp
cleaning system. Add MB Concentrate
“MB SummerFit” to a premixed wind-
shield washer solvent / antifreeze
which is formulated for temperatures
below freezing point (
page 479).

Battery test. Battery capacity drops
with decreasing ambient temperature.
A well charged battery helps to make
sure that the engine can be started
even at low ambient temperatures.

Tire change.
Winter tires
Always use winter tires at temperatures
below 45°F (7°C) and whenever wintry
road conditions prevail. Not all M+S rated
tires provide special winter performance.
Make sure the tires you use show the
mountain/snowflake.marking on the
tire sidewall. These tires meet specific
snow traction performance requirements
of the Rubber Manufacturers Association
(RMA) and The Rubber Association of Can-
ada (RAC) and have been designed specif-
ically for use in snow conditions. Use of
winter tires is the only way to achieve the
maximum effectiveness of the ABS and the
ESP
® in winter operation.
For safe handling, make sure that all
mounted winter tires are of the same make
and have the same tread design.Always observe the speed rating of the
winter tires installed on your vehicle. If the
maximum speed for which your tires are
rated is below the speed rating of your ve-
hicle, you must place a notice to this effect
where it will be seen by the driver. Such no-
tices are available at your tire dealer or any
authorized Mercedes-Benz Center.
Warning!G
Winter tires with a tread depth under 1/6in
(4 mm) must be replaced. They are no
longer suitable for winter operation.

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.

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.

498 Index
Telephone* 28, 167, 284
Answering/ending a call 168
Changing mobile phone cradle 286
Compartment 278
Hands-free microphone 31
Inserting in cradle 285
Installing a different
mobile phone cradle 286
Messages in display 403
Operation 167, 234
Phone book* 168
Redialing 169
Removing from cradle 286
TEL menu* 167
Temperature
Interior temperature 192, 202
Tightening torque, Wheel bolts 445
Time 158
Time, Setting 158
TIN 349
Tire and Loading Information
Placard 327
Terminology 347
Tire inflation pressure 438
Checking 331Tire inflation pressure see
the placard on the fuel filler flap
TIREFIT (CLK 63 AMG only) 404
TIREFIT*
Instructions for use 436
Tires 323, 466
Air pressure 347
Care and maintenance 324
Chains 352
Cleaning 325
Direction of rotation, Spinning 326
Driving instructions 305
Important notes,
Tire inflation pressure 332
Inflation pressure 314, 331, 333
Inflation pressure,
Information placard 331
Inspection 324
Load rating 349
MOExtended system* 446
MOExtended* 336, 466
Ply composition
and material used 349
Problems under-/overinflated 336
Retreads 323
Rims and tires 466Rotation 350
Run Flat Indicator 334
Service life 324
Sizes 467
Snow 351
Spare wheel 407, 441, 469
Speed rating 307, 339, 349
Storing 325
Temperature 346
Terminology 347
Tire Identification Number see TIN
TIREFIT (CLK 63 AMG only) 404
Traction 306, 349
Tread 349
Tread depth 325, 351
Treadwear indicators 349
Wear pattern 350
Winter 351
Tools 404
Top tether
Children in the vehicle 85
Towing eye bolt 454
CLK 550, CLK 63 AMG 455
Towing the vehicle 452
Tow-start 450, 452
Traction 92, 306, 349

500 Index
Vehicle loading
Instructions 275, 326
Load limit 326
Terminology 347
Vehicle maximum load on the tire 349
Vehicle recovery services,
Stolen (Tele Aid) 293
Vehicle status message memory 152
Vehicle status messages 378
Vehicle system settings,
Control system 139
Vehicle tool kit 404
Vehicle washing 358
VIN 462W
Warning indicators
Parktronic system*
(CLK 63 AMG (USA),
Canada all vehicles) 269
Warning sounds
Driver’s or passenger’s seat belt 78
Parking brake 53
Parktronic system*
(CLK 63 AMG (USA),
Canada all vehicles) 269, 270
Seat belt telltale 374
Warranty coverage 10, 461
Washer fluid see Windshield washer fluid
Washer reservoir level 473
Washing the vehicle 358
Wear pattern, Tires 350
Weights, Vehicle 471
Wheel
Bolts 409
Change 441
Collapsible wheel chock 407
Removing 443
Spare 407
Tightening torque 445TIREFIT (CLK 63 AMG only) 404
Wrench 442
Wheels, Sizes 467
Wheels, Tires and 323
Wind screen 261
Windows see Power windows
Windshield
Cleaning 56, 362
Defogging 194, 204
Windshield washer fluid 322, 479
Message in display 403
Mixing ratio 479
Refilling 322
Reservoir level 473
Wiping 56
Windshield washer system 473, 479
Windshield wipers 55
Cleaning wiper blades 362
Replacing wiper blades 434
Winter driving 351
Block heater (Canada only) 352
Snow chains 352
Tires 351
Winter driving instructions 308
Winter tires 351
Wood trims, cleaning 364