2011 MERCEDES-BENZ CLS-CLASS spare wheel

radio, and heater, to the extent that these
items are available as factory-installed
equipment (whether installed or not).
Air pressure
The amount of air inside the tire pressing
outward on each square inch of the tire. Air
pressure is expressed in pounds per square
inch (psi), kilopascal (kPa), or bar.
Aspect ratio
Dimensional relationship between tire
section height and section width expressed
in percentage.
Bar
Metric unit for air pressure. There are
14.5038 pounds per square inch (psi) to
1
bar; there are 100 kilopascals (kPa) to 1 bar.
Bead The tire bead contains steel wires wrapped by
steel cords that hold the tire onto the rim.
Cold tire inflation pressure
Tire inflation pressure when your vehicle has
been sitting for at least 3 hours or driven no
more than 1 mile (1.6 km).
Curb weight
The weight of a motor vehicle with standard
equipment including the maximum capacity
of fuel, oil, and coolant, and, if so equipped,
air conditioning and additional optional
equipment, but without passengers and
cargo.
DOT (Department of Transportation)
A tire branding symbol which denotes the tire
meets requirements of the U.S. Department
of Transportation. GAWR (Gross Axle Weight Rating) The GAWR is the maximum permissible axle
weight.

The gross vehicle weight on each axle
must never exceed the GAWR for the front
and rear axle indicated on the certification
label located on the driver’s door B-pillar.
GVW (Gross Vehicle Weight) The GVW comprises the weight of the vehicle
including fuel, tools, spare wheel, installed
accessories, passengers and cargo and, if
applicable,

trailer tongue load. The GVW must
never exceed the GVWR indicated on the
certification label located on the driver’s door
B-pillar.
GVWR (Gross Vehicle Weight Rating) This is the maximum permissible vehicle
weight of the fully loaded vehicle (weight of
the

vehicle including all options, passengers,
fuel, and cargo and, if applicable, trailer
tongue load). It is indicated on the
certification label located on the driver’s door
B-pillar.
Kilopascal (kPa) Metric unit for air pressure. There are 6.9 kPa
to 1 psi; another metric unit for air pressure
is bar. There are 100 kilopascals (kPa) to
1 bar.
Load index
Numerical code associated with the
maximum load a tire can support.
Maximum load rating
The maximum load in kilograms and pounds
that can be carried by the tire.
Maximum loaded vehicle weight
The sum of curb weight, accessory weight,
total load limit, and production options
weight.206
Tires and wheels
Operation
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Treadwear indicators
Narrow bands, sometimes called “wear bars”
that
show across the tread of a tire when only
1 / 16 in (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 U.S.
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. Winter driving
General information
Have
your vehicle winterized at an authorized
Mercedes-Benz Center. Winter tires
G
Warning!
Winter tires with a tread depth of less than
1 / 6 in (4 mm) must be replaced. They are no
longer suitable for winter operation. G
Warning!
If you use your spare wheel 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 wheel replaced by a regular
road wheel with a winter tire at the nearest
authorized Mercedes-Benz Center. Always use winter tires at temperatures
below 45‡ (7†) 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/
snowflakeimarking 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 your vehicle’s driving safety
systems such as the ABS and the ESP
®
in
winter operation.
For safe handling, make sure all mounted
winter tires are of the same make and have
the same tread design.
For information on winter tires for your
vehicle model, see the “Technical data”
section ( Y page 291).
Always

observe the speed rating of the winter
tires installed on your vehicle. Snow chains
! When driving with snow chains, always
select the raised level of the vehicle level
control. Other settings may result in
damage to your vehicle.
! Some tire sizes do not leave adequate
clearance for snow chains. To help avoid
serious damage to your vehicle or tires,
make sure the use of snow chains is
permissible as specified in the “Technical
data” section of this Operator’s Manual.
Snow 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. 208
Winter driving
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Observe the following guidelines when using
snow chains:
R
Use
of snow chains is not permissible with
all wheel/tire combinations ( Y page 291).
R Use snow chains in pairs and on rear
wheels only. Follow the manufacturer’s
mounting instructions.
! 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.
R Only use snow chains that are approved by
Mercedes-Benz. Any authorized Mercedes-
Benz Center will be glad to advise you on
this subject.
R Use of snow chains may be prohibited
depending on location. Always check local
and state laws before installing snow
chains.
R Do not use snow chains on the spare wheel.
i When driving with snow chains, you may
wish to switch off the ESP ®
(Y page 59)
before setting the vehicle in motion. This
will improve the vehicle’s traction. Winter driving instructions
G
Warning!
If the vehicle becomes stuck in snow, make
sure snow is kept clear of the exhaust pipe
and from around the vehicle with the engine
running. Otherwise, deadly carbon monoxide
(CO) gases may enter vehicle interior
resulting in unconsciousness and death.
To

assure sufficient fresh air ventilation, open
a window slightly on the side of the vehicle
not facing the wind. G
Warning!
The outside temperature indicator is not
designed to serve as an ice-warning device
and is therefore unsuitable for that purpose. Indicated temperatures just above the
freezing

point do not guarantee that the road
surface is free of ice. The road may still be icy,
especially in wooded areas or on bridges. G
Warning!
On slippery road surfaces, never downshift in
order to obtain braking action. This could
result

in drive wheel slip and reduced vehicle
control. Your vehicle’s ABS will not prevent
this type of loss of control.
The most important rule for slippery or icy
roads is to drive sensibly and to avoid abrupt
acceleration, braking and steering
maneuvers. Do not use the cruise control
system under such conditions.
When the vehicle is in danger of skidding, shift
the automatic transmission to neutral
position N. Try to keep the vehicle under
control by corrective steering action.
i For information on driving with snow
chains, see “Snow chains” ( Y page 208).
Road salts and chemicals can adversely
affect braking efficiency. Increased pedal
force may become necessary to produce the
normal brake effect.
Depressing the brake pedal periodically when
traveling at length on salt-strewn roads can
bring road-salt-impaired braking efficiency
back to normal.
If the vehicle is parked after being driven on
salt-treated roads, the braking efficiency
should be tested as soon as possible after
driving is resumed. G
Warning!
Make sure not to endanger any other road
users when carrying out these braking
maneuvers. Winter driving
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Vehicle equipment
i This Operator’s Manual describes all
features, standard or optional, potentially
available for your vehicle at the time of
purchase. Please be aware that your
vehicle might not be equipped with all
features described in this manual. Where will I find ...?
First aid kit
! Always keep the storage compartment
under the front passenger seat closed
while the vehicle is in motion.
i Check expiration dates and contents for
completeness at least once a year and
replace missing/expired items.
The first aid kit is located in the storage
compartment at the front edge of the front
passenger seat. X
Pull handle : upward.
X Fold the lid down.
X Remove the first aid kit. Vehicle tool kit
The vehicle tool kit is located in the space
underneath the trunk floor. i
Vehicles without spare wheel are not
factory-equipped with the tools required for
a wheel change such as a jack or a wheel
wrench. Some tools required for a wheel
change are specific to your vehicle.
Contact an authorized Mercedes-Benz
Center to obtain the tools approved for
your vehicle.
The vehicle tool kit includes:
R Alignment bolt 13
R Collapsible wheel chock 13
R Electric air pump 14
R Jack 13
R Pair of universal pliers
R Towing eye bolt
R Valve extractor 14
R Wheel wrench 13
X Removing: Open the trunk (Y page 71).
X Lift the trunk floor using the floor handle.
X Engage the floor handle on the upper trunk
lip.
! To prevent damage, always disengage the
floor handle from the upper trunk lip and
lower the trunk floor before closing the
trunk.
X Remove the luggage box (if so equipped)
(Y page 227).
13 Vehicles with spare wheel only.
14 Vehicles with spare wheel with collapsible tire only. 224
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Example illustration
:
Tool bag and jack
; Collapsible wheel chock
= Electrical air pump 14
? Storage well casing
X To access jack: Remove tool bag :.
Collapsible wheel chock The collapsible wheel chock serves to secure
the vehicle, e.g. while changing a wheel.
X
Take the collapsible wheel chock from the
vehicle tool kit (Y page 224). X
Setting up: Tilt both plates upward :.
X Fold the lower plate outward ;.
X Guide the tabs of the lower plate all the way
into the openings of base plate =.
For information on where to place wheel
chocks when changing a wheel, see “Lifting
the vehicle” ( Y page 272). Jack G
Warning!
Only use the jack supplied with your vehicle
to lift the vehicle briefly for wheel changes. If
you use the jack for any other purpose, you or
others could be injured, as the jack is
designed only for the purpose of changing a
wheel.
When using the jack, observe the safety notes
in the “Mounting the spare wheel” section and
the notes on the jack.
X Take the jack from the vehicle tool kit
(Y page 224). Storage position
X
Turn the crank handle in the direction of
arrow as far as it will go. Operational position
X
Turn the crank handle clockwise.
14 Vehicles with spare wheel with collapsible tire only. Where will I find ...?
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Before placing the jack back into the vehicle
tool kit:
X
Fully collapse the jack.
X Fold in the crank handle (storage position). Spare wheel
G
Observe Safety notes, see page 271.
The spare wheel is located in the space
underneath the trunk floor.
X Removing: Open the trunk (Y page 71).
X Lift the trunk floor using the floor handle.
X Engage the floor handle on the upper trunk
lip.
! To prevent damage, always disengage the
floor handle from the upper trunk lip and
lower the trunk floor before closing the
trunk.
Vehicles with Minispare wheel X
Remove the luggage box ( Y page 227).X
Remove spare wheel mounting ; by
turning it counterclockwise.
X Remove spare wheel :.
For information on mounting the spare wheel,
see “Flat tire” ( Y page 271). Storing the spare wheel after use
X
Place spare wheel : in the spare wheel
well (Y page 226).
X Secure spare wheel : by turning spare
wheel mounting ; clockwise
(Y page 226).
Vehicles with spare wheel with
collapsible tire X
Remove the storage well casing
(Y page 225). :
Spare wheel
; Tensioning strap 15
= Retaining screw
? Storage well casing base
X Remove storage well casing base ?.
X Remove retaining screw = by turning it
counterclockwise.
X Remove spare wheel :.
For information on mounting the spare wheel,
see “Flat tire” ( Y page 271).
Storing the spare wheel after use
If you wish to store the spare wheel after use,
carry out the following steps. Otherwise, the
spare wheel may not fit the spare wheel well.
! Make sure the spare wheel is dry before
storing it.
15 Vehicles with 19" spare wheel only. 226
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X
Unscrew the valve cap from the valve of the
collapsible tire.
X Unscrew the valve insert from the valve
using the valve extractor integrated in the
valve cap.
X Allow the air to escape.
i It may take a few minutes for the
collapsible tire to deflate completely.
X Screw the valve insert back into the valve.
X Screw the valve cap back onto the valve.
i Vehicles with 19" spare wheel only:
Before placing the spare wheel in the spare
wheel well fasten tensioning straps, see
“Compressing the collapsible tire”
(Y page 227).
X Place spare wheel : into the spare wheel
well (Y page 226).
X Secure spare wheel : by turning retaining
screw = clockwise (Y page 226).
Compressing the collapsible tire
This description applies to vehicles with
19" spare wheel only.
The collapsible tire on a 19" spare wheel must
be compressed with two tensioning straps
before you can store it in the spare wheel well. X
Extend the tensioning strap by pulling the
slider.
X Place tensioning strap around the spare
wheel rim and collapsible tire with the
buckle facing the inside of the rim. X
Close the buckle.
X Pull the loose end of the tensioning strap.
The tensioning strap must be pulled as tight
as possible. Luggage box
Vehicles with spare wheel with collapsible tire
are not equipped with a luggage box.
X Removing: Open the trunk (Y page 71).
X Lift the trunk floor using the floor handle.
X Engage the floor handle on the upper trunk
lip.
! To prevent damage, always disengage the
floor handle from the upper trunk lip and
lower the trunk floor before closing the
trunk. X
Turn fastening clips : to the left upwards
from the fastening bolts.
X Lift luggage box ; in the area of the
fastening bolts and remove it from the
trunk.
X Installing: Insert the luggage box into the
trunk so that the fastening clips are in line
with the fastening bolts. Where will I find ...?
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Display messages
Possible causes/consequences and
X SolutionsTire
Pres.
Monitor Wheel
Sensor
Missing Vehicles with Advanced TPMS (Canada only):
At least one sensor is defect (e.g. battery is empty).
The respective tire is indicated by
– – instead of the tire
inflation pressure in the multifunction display.
X Have the Advanced TPMS checked at an authorized
Mercedes-Benz Center.
X Have the wheel sensors installed at an authorized
Mercedes-Benz Center. At least one wheel without appropriate wheel sensors is
mounted (e.g. spare wheel).
The respective tire is indicated by
– – instead of the tire
inflation pressure in the multifunction display.
X Have the Advanced TPMS checked at an authorized
Mercedes-Benz Center.
X Have the wheel sensors installed at an authorized
Mercedes-Benz Center. Tire
Pressure
Monitor Currently
Unavailabl
e The TPMS (USA only) or Advanced TPMS (Canada only) cannot
monitor the tire inflation pressure due to a nearby radio
interference source or insufficient power supply.
As
soon as the causes of the malfunction have been rectified,
the TPMS or Advanced TPMS becomes active again
automatically after a few minutes of driving. Please
correct
the tire
pressure. Vehicles with Advanced TPMS (Canada only):
The tire inflation pressure is too low in at least one tire.
or
The tire inflation pressures of the individual tires differ from
each other significantly.
The tire inflation pressure values are shown in the
multifunction display.
X
Check and correct tire inflation pressure as required
(Y page 185).
X Restart the Advanced TMPS ( Y page 192).Caution
Tire
Pressure
Tire
Defect Vehicles with Advanced TPMS (Canada only):
At least one tire is deflating.
The respective tire is indicated in the multifunction display.
X
Carefully bring the vehicle to a halt, avoiding abrupt
steering and braking maneuvers.
X If necessary, change the wheel (Y page 271). Vehicle status messages in the multifunction display
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