2006 MERCEDES-BENZ CLS55AMG winter tires

314 OperationTires and wheels
Install the valve cap.

Repeat this procedure for each tire.Run Flat Indicator*
While the vehicle is being driven, the Run
Flat Indicator* monitors the set tire infla-
tion pressures by evaluating each wheel’s
rotational speed. This allows the system to
detect a significant loss of pressure in a
tire. If a wheel’s rotational speed changes
due to falling tire inflation pressure, you
will see a corresponding warning message
in the multifunction display.
The Run Flat Indicator* may function in a
restricted manner or with a delay if:


snow chains are mounted to the
vehicle


winter road conditions prevail in pres-
ence of ice and snow


you are driving on a loose surface (e.g.
sand or gravel)


you are driving in a very sporty manner
(involving rapid acceleration or high
speeds in curves)
iIf you have overfilled the tire, release
tire inflation pressure by pushing the
metal stem of the valve with e.g. a tip of
a pen. Then recheck the tire inflation
pressure with the tire gauge.
Warning!
G
When the multifunction display shows the
message
Tire pressure Check tires
,
one or more of your tires is significantly un-
der-inflated. You should stop and check
your tires as soon as possible, and inflate
them to the proper tire inflation pressure as
indicated on the vehicle’s tire information
placard. Driving on a significantly under-in-
flated tire causes the tire to overheat and
can lead to tire failure. Under-inflation also
reduces fuel efficiency and tire tread life,
and may affect the vehicle’s handling and
stopping ability. Each tire, including the
spare, should be checked monthly when
cold and set to the recommended tire infla-
tion pressure as specified in the vehicle
placard and owner’s manual.


326 OperationTires and wheelsAll-season and winter tires
Load identification
1Load identificationIn addition to tire load rating, special load
information may be molded into the tire
sidewall following the letter designating
the tire speed rating1 (
page 326).
No specification given: absence of any text
(like in above example) indicates a
standard load (SL) tire.
XL or Extra Load: designates an extra load
(or reinforced) tire.
Light Load: designates a light load tire.
C, D, E: designates load range associated
with the maximum load a tire can carry at
a specified pressure.
Index
Speed rating
QM+S
1
1or M+S.for winter tires
up to 100 mph (160 km/h)
TM+S
1
up to 118 mph (190 km/h)
HM+S
1
up to 130 mph (210 km/h)
VM+S
1
up to 149 mph (240 km/h)
iNot all M+S rated tires provide special
winter performance. Make sure the
tires you use show M+S and the moun-
tain/snowflake.marking on the
tire sidewall. These tires meet specific
snow traction performance require-
ments of the Rubber Manufacturers
Association (RMA) and the Rubber
Association of Canada (RAC) and have
been designed specifically for use in
snow conditions.
iFor illustration purposes only. Actual
data on tires are specific to each vehi-
cle and may vary from data shown in
above illustration.

336 OperationWinter drivingBefore 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 “S” to a premixed
windshield washer solvent / antifreeze
which is formulated for temperatures
below freezing point (
page 468).


Battery test
Battery capacity drops with decreasing
ambient temperature. A well charged
battery helps to make sure that the
engine can be started and the
electro-hydraulic brake system will be
fully operational, 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
Canada (RAC) and have been designed
specifically for use in snow conditions. Use
of winter tires is the only way to achieve
the maximum effectiveness of the ABS,
ESP
® and electro-hydraulic brake system
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
notices are available at your tire dealer or
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.

337 Operation
Winter driving
Block heater* (Canada only)
The engine is equipped with a block heat-
er.
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 to ex-
ceed 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.


Snow chains should only be used on
the rear wheels. Follow the manufac-
turer’s mounting instructions.


Only use snow chains that are ap-
proved 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.
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
select the raised level of the level con-
trol system Airmatic (
page 239).
Other settings may result in damage to
your vehicle.
iWhen driving with snow chains, you
may wish to deactivate the ESP
®
(
page 88) before setting the vehicle
in motion. This will improve the vehi-
cle’s traction.

338 OperationWinter driving
!
Some tire sizes do not leave adequate
clearance for snow chains. To help
avoid serious damage to your vehicle or
tires, use of snow chains is not permis-
sible with the following tire sizes:

275/30 R19 96V XL
(Extra Load) M+S.


275/35 R18 95V


285/35 ZR18 101Y XL (Extra Load)


285/30 ZR19 98Y XL (Extra Load)


T 155/70 R17 110M


175/55-18 95P

372 Practical hintsWhat to do if …Display messages
Possible cause/consequence
Possible solution
Tire pres. monitor
inoperative
No wheel sensors
There are wheels without wheel sen-
sors mounted (e.g. winter tires).

Have the Advanced TPMS* checked by an au-
thorized Mercedes-Benz Center.

Have the wheel sensors installed by an
authorized Mercedes-Benz Center.
Tire pres. monitor
Wheel sensor missing


One or more sensors malfunc-
tion (e.g. battery is empty).


One or more wheels without
wheel sensors mounted (e.g.
spare tire).
The tire inflation pressure for the re-
spective tire is not shown in the mul-
tifunction display.

Have the Advanced TPMS* checked by an au-
thorized Mercedes-Benz Center.

Have the wheel sensors installed by an
authorized Mercedes-Benz Center.

450 Technical dataRims and tires
iFurther information on tires and rims is
available at any authorized
Mercedes-Benz Center. A placard with
the recommended tire inflation pres-
sures is located on the driver’s door
B-pillar. Some vehicles may have sup-
plemental tire inflation pressure infor-
mation for driving at high speeds
(page 312) or for vehicle loads less
than the maximum loaded vehicle con-
dition. 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 maintenance recom-
mendation included with vehicle.
iThe following pages also list the ap-
proved wheel rim and tire sizes for
equipping your vehicles with winter
tires. Winter tires are not available as
standard or optional factory equip-
ment, but can be purchased from an
authorized Mercedes-Benz Center.
Depending on vehicle model and the
standard or optional factory-equipped
wheel rim/tire configuration on your
vehicle (Appearance Package, Sport
Package etc.), equipping your vehicle
with winter tires approved for your ve-
hicle model may also require the pur-
chase of two or four wheel rims of the
recommended size for use with these
winter tires. See an authorized
Mercedes-Benz Center for more infor-
mation.

451 Technical data
Rims and tires
Same size tires
CLS 500
Rims (light alloy)
8.5 J x 18 H2
Wheel offset (front axle)
1.38 in (28 mm)
Wheel offset (rear axle)
0.71 in (18 mm)
Summer tires
1
-
Winter tires
1,2
245/40 R18 97V XL (Extra Load) M+S.
1Radial-ply tires2Not available as factory equipment.!Winter tires on rims with different
wheel offset front vs. rear cannot be
rotated.