539 Operation
Tires and wheels
the service description for the tire must
be referred to. The service description
is comprised of the tire load rating5
(
page 536) and the tire speed
rating6 (
page 536).
If your tire includes “ZR” in the size
designation and no service
description5 and6 (
page 536) is
given, the tire manufacturer must be
consulted for the maximum speed ca-
pability.
If a service description5 and6
(
page 536) 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 parenthesis
designates the maximum speed capa-
bility 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
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)
iNot all M+S rated tires provide special win-
ter performance. Make sure the tires you use
show M+S and the mountain/snow-
flake
.marking on the tire sidewall. These
tires meet specific snow traction performance
requirements of the Rubber Manufacturers As-
sociation (RMA) and the Rubber Association of
Canada (RAC) and have been designed specifi-
cally for use in snow conditions.
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549 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 Windshield
Washer Concentrate “MB Summerfit”
to a premixed windshield washer sol-
vent/antifreeze which is formulated for
below freezing temperatures
(
page 690).
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, EBP
and 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
vehicle, you must place a notice to this
effect where it will be seen by the driver.
Such notices are available from your tire
dealer or from any authorized
Mercedes-Benz Center.
Warning!G
Winter tires with a tread depth of less than 1/6in (4 mm) must be replaced. They are no
longer suitable for winter operation.
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550 Operation
Winter driving
Snow chainsSnow chains should only be driven on
snow-covered roads at speeds not to
exceed 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:
Use of snow chains is not permissible
with all wheel/tire combinations
(
page 678).
Use snow chains in pairs and rear
wheels only. Follow the manufacturer’s
mounting instructions.
Only use snow chains that are
approved by Mercedes-Benz. Your
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 681).
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.
!When driving with snow chains, always se-
lect the raised level of the level control system
ABC (
page 429). Other settings may result in
damage to your vehicle.
!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 678).
!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 71) before
setting the vehicle in motion. This will improve
the vehicle’s traction.
ProCarManuals.com
678 Technical data
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 vehi-
cle such as ABS or ESP
®. Tires specially
developed for your vehicle and tested and ap-
proved 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 Tire and Loading Information placard
with the recommended tire inflation pressures is
located on the driver’s door B-pillar
(
page 523). Some vehicles may have supple-
mental tire inflation pressure information for
driving at high speeds (
page 529) or for vehi-
cle loads less than the maximum loaded vehicle
condition (
page 536). If such information is
provided, it can be found on the tire inflation
pressure 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 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.
ProCarManuals.com
679 Technical data
Rims and tires
Same size tires
ModelCL 550CL 600
CL 550 (Sport Package*)
CL 600 (Sport Package*)
Rims (light alloy)8.5 J x18 H28.5 J x18 H2
Wheel offset1.69 in (43 mm)1.69 in (43 mm)
All-season tires*1
1Radial-ply tires.
255/45 R18 99H M+S –
Winter tires1,2,3
2For use with snow chains contact an authorized Mercedes-Benz Center.3Not available as factory equipment.
255/45 R18 99H M+S.255/45 R18 99H M+S.
ProCarManuals.com
714 Index
Important notes on
tire inflation pressure 529
Inflation pressure 528
Information placard 524
Inspection 521
Load rating 537, 547
Load rating, Maximum 541, 545
Minispare wheel 634, 681
Ply composition
and material used 547
Problems under-/overinflation 528
Retreads 520
Rotating 548
Service life 521
Sizes 678
Snow 549
Speed rating 504, 538, 547
Storing 522
Temperature 529, 543
Terminology 544
Total load limit 547
TPMS* malfunction telltale 31, 576
Traction 503, 547
Tread depth 522
Tread depth, Winter 549
Treadwear indicators 547Vehicle maximum load on 547
Wear pattern 548
Winter 549
Tools 632
Top tether
Children in the vehicle 60
Tow-away alarm 78
Tow-away alarm (COMAND) 243
Towing eye bolt
(vehicle tool kit) 632, 666
Towing the vehicle 663
Tow-start 660, 663
Traction 503, 543, 547
Transmission see Automatic transmission
Traveling abroad 506
Tread 547
Tread depth, Tires 522
Tread depth, Winter tires 549
Treadwear indicators 547
Trip odometer 260
Resetting 261
Troubleshooting
Voice Control 317Trunk
Closing 635
Emergency release 464
Lighting 371
Message in display 631
Opening-height restriction
(COMAND) 242
Power closing assist for trunk lid 334
Unlocking in an emergency 635
Valet locking 465
Trunk, Trunk lid, Lock button
(KEYLESS-GO*) 331
Tumbler holder see Cup holder
Turn signal lamps
Cleaning lenses 558
Replacing bulbs 642
Turn signals 382
Additional in mirrors 642
Front bulbs 642
Indicator lamp 31
Rear bulbs 642
ProCarManuals.com
716 Index
Voice Control
Address book 295
Command list 305
DVD changer 303
Individualization 320
Individualization (COMAND) 229
Introduction 274
Navigation 285
Operating safety 273
Operation via the
multifunction steering wheel 276
Radio 299
Switching help window on or off
(COMAND) 229
Telephone 278
Troubleshooting 317W
Warning indicators
Park Assist* 437
Parktronic* 433
Warning sounds
DISTRONIC Plus* 414
Drivers seat belts 54
Electronic parking brake 386
PRE-SAFE
® Brake* 75
Seat belt telltale 574
Warranty coverage 673
Washing the vehicle 554
Wear pattern, Tires 548
Weights, Vehicle 683
Wheels
Change 649
Collapsible wheel chock 634
Minispare wheel 634, 681
Removing 652
Rims and Tires 678
Sizes 678
Tightening torque 654
Tires and wheels 520
Window curtain air bags 46, 47
Windows see Power windowsWindshield
Cleaning 562
Cleaning wiper blades 562
Infrared reflecting 496
Windshield washer fluid 685, 691
Mixing ratio 691
Refilling 519
Wiping with 373
Windshield wipers 372
Cleaning wiper blades 562
Replacing wiper blades 647
Single wipe 373
Winter driving 549
Snow chains 550
Tires 549
Winter driving instructions 504
Winter tires 549
Wood trims, Cleaning 564
Wrench, wheel (vehicle tool kit) 632
X
Xenon headlamp see Headlamps
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