2011 MERCEDES-BENZ C-Class spare wheel

Roadside Assistance call buttonXPress and hold Roadside Assistance
button : for more than two seconds.
A call to a Mercedes-Benz Roadside
Assistance Representative is initiated. The
indicator lamp in Roadside Assistance
button : flashes while the call is active.
The Connecting Call message appears in
the multifunction display and the audio
system or COMAND is muted.
If a connection can be established, the Call
Connected message appears in the
multifunction display.
If a mobile phone network is available and
there is sufficient GPS reception, the mbrace
system transmits data to the Response
Center, for example:
R current location of the vehicle
R vehicle identification number
R vehicle model
R vehicle color
i The audio system or COMAND display
shows that an mbrace call is active. You can
switch to the navigation menu by pressing
the NAVI button on COMAND during the
call. Spoken commands are not available.
A voice connection is established between
the Mercedes-Benz Roadside Assistance
Representative and the vehicle occupants.
XDescribe the type of assistance needed.
The Mercedes-Benz Roadside Assistance
Representative either sends a qualified
Mercedes-Benz technician or organizes for
your vehicle to be transported to the nearest
authorized Mercedes-Benz Center. You may
be charged for services such as repair work
and/or towing. Further details are available
in your mbrace manual.
i If the indicator lamp in MB info call
button : flashes continuously and it was
not possible to establish a voice
connection to the Response Center, then
the mbrace system has failed to initiate a
Roadside Assistance call (e.g. the
corresponding cellular phone network is
not available). The Call Failed message
appears in the multifunction display.XTo end a call: press the ~ button on the
multifunction steering wheel.
or
XPress the corresponding button for ending
a phone call on the audio system or on
COMAND.
i Sign and Drive services 28
: you are not
charged for services such as jump-starting,
providing a few gallons of fuel for a fuel tank
that has been run dry or changing a flat tire
with the vehicle's own spare tire.
MB Info call button
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After an accidentProblemPossible causes/consequences and M SolutionsFuel is leaking from the
vehicle.
GRisk of explosion or fire
The fuel line or the fuel tank is faulty.
XImmediately turn the key to position 0(Y page 131)in the ignition
lock and remove it.
XDo not restart the engine under any circumstances.XConsult a qualified specialist workshop.You are unable to
determine the extent of
the damage.
XConsult a qualified specialist workshop.You cannot detect any
damage.
XStart the engine as normal.The NECK-PRO head
restraints on the
driver's and front-
passenger seats have
been triggered.
Your vehicle has been involved in a rear-end collision.XReset the triggered NECK-PRO head restraints (Y page 50).Where will I find...?
First-aid kit
Depending on the vehicle's equipment, the
first-aid kit is in an open stowage
compartment or behind the side paneling.
XOpen the trunk lid.XTo open the stowage well: turn rotary
knob : in the direction of the arrow and
fold down cover ;.
XRemove the first-aid kit.
iCheck the expiration date on the first-aid
kit at least once a year. Replace the
contents if necessary, and replace missing
contents.
Vehicle tool kit
The vehicle tool kit can be found in the
stowage well under the trunk floor.
iVehicles without a spare wheel are not
equipped with the tools needed to change
a wheel when they leave the factory, e.g.
jack or lug wrench. Some tools for changing
a wheel are specific to the vehicle. To
obtain tools approved for your vehicle, visit
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a qualified specialist workshop, e.g. an
authorized Mercedes-Benz Center.
XLift the trunk floor upwards (Y page 219).:Vehicle tool kit tray;Stowage well=Spare wheel/"Minispare" emergency
spare wheel
The vehicle tool kit contains:
RFoldable wheel chock
RFuse allocation chart
RJack
ROne pair of gloves
RLug wrench
RTowing eye
"Minispare" emergency spare wheel
The "Minispare" emergency spare wheel can
be found in the stowage well under the trunk
floor.
XLift the trunk floor upwards (Y page 219).XTurn stowage well ; counter-clockwise
and remove it.
XRemove "Minispare" emergency spare
wheel :.
For further information on changing a wheel
and mounting the spare wheel, see
(Y page 255).
Flat tire
Preparing the vehicle
Your vehicle could be equipped with a
"Minispare" emergency spare wheel or the
MOExtended run-flat system(Y page 259).
iVehicle preparation is not necessary on
vehicles with the MOExtended run-flat
system.
XStop the vehicle as far away as possible
from traffic on solid, non-slippery and level
ground.
XSwitch on the hazard warning lamps.XFirmly depress the parking brake.XBring the front wheels into the straight-
ahead position.
XVehicles with manual transmission:
engage first or reverse gear.
XVehicles with automatic transmission:
move the selector lever to P.
XSwitch off the engine.XVehicles without KEYLESS-GO: remove
the key from the ignition lock.
XVehicles with KEYLESS-GO: open the
driver's door.
The on-board electronics have status 0,
which is the same as the key having been
removed.
XVehicles with KEYLESS-GO: remove the
Start/Stop button from the ignition lock
(Y page 132).
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XAll occupants must get out of the vehicle.
Make sure that they are not endangered as
they get out of the vehicle.XMake sure that no one is near the danger
area whilst a wheel is being changed.
Anyone who is not directly assisting in the
wheel change should, for example, stand
behind the barrier.XGet out of the vehicle. Pay attention to
traffic conditions when doing so.XClose the driver's door.
Changing a wheel and mounting the
spare wheel
Preparing the vehicle
GWarning!
The wheel and tire size of the emergency
spare wheel/spare wheel may differ to that of
the damaged wheel. When using an
emergency spare wheel/spare wheel the
handling characteristics of the vehicle may
change.
Adapt your style of driving accordingly.
Never operate the vehicle with more than one
emergency spare wheel/spare wheel that
differs in size.
Only use an emergency spare wheel/spare
wheel of a differing size briefly and do not
switch off ESP ®
.
When using an emergency spare wheel, you
must not exceed a maximum speed of 50 mph
(80 km/h).
GWarning!
Have the emergency spare wheel/spare
wheel replaced with a new wheel as soon as
possible at a qualified specialist workshop
which has the necessary specialist knowledge
and tools to carry out the work required.
Mercedes-Benz recommends that you use an
authorized Mercedes-Benz Center for this
purpose. In particular, work relevant to safety
or on safety-related systems must be carried
out at a qualified specialist workshop.
i Vehicles without an emergency spare
wheel/spare wheel are not equipped with
wheel-changing tools at the factory. For
more information on which tools are
required to perform a wheel change on your
vehicle, e.g. wheel chock, alignment bolt or
lug wrench, consult an authorized
Mercedes-Benz Center.XPrepare the vehicle as described
( Y page 254).XRemove the following items from the
stowage well under the trunk/cargo
compartment floor:
R the emergency spare wheel
R the vehicle tool kit
R the folding wheel chock
R the jackXSecure the vehicle to prevent it from rolling
away.
Securing the vehicle to prevent it from
rolling away
GWarning
Only jack up the vehicle on level ground or on
slight inclines/declines. The vehicle could
otherwise fall off the jack and injure you or
others.
If your vehicle is equipped with a wheel chock,
it can be found in the vehicle tool kit
( Y page 253).
The folding wheel chock is an additional
securing measure to prevent the vehicle from
rolling away, for example when changing a
wheel.
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Mounting a new wheelGWarning!
Always replace wheel bolts that are damaged
or rusted.
Never apply oil or grease to wheel bolts.
Damaged wheel hub threads should be
repaired immediately. Do not continue to
drive under these circumstances! Contact an
authorized Mercedes-Benz Center or call
Roadside Assistance.
Incorrect wheel bolts or improperly tightened
wheel bolts can cause the wheel to come off.
This could cause an accident. Make sure to
use the correct wheel bolts.
GWarning
Only use genuine Mercedes-Benz wheel bolts.
Other wheel bolts may come loose.
Do not tighten the wheel bolts when the
vehicle is raised. Otherwise, the vehicle could
fall off the jack.
GWarning
Make sure to use the original length wheel
bolts when remounting the original wheel
after it has been repaired.
XClean the wheel and wheel hub contact
surfaces.
! To prevent damage to the paintwork, hold
the wheel securely against the wheel hub
while screwing in the first wheel bolt.
XPlace the emergency spare wheel on the
wheel hub and push it on.XTighten the wheel bolts until they are
finger-tight.
Lowering the vehicle
XTurn the crank of the jack counter-
clockwise until the vehicle is once again
standing firmly on the ground.XPlace the jack to one side.XTighten the wheel bolts evenly in a
crosswise pattern in the sequence
indicated ( : to A). The tightening torque
must be 96 lb-ft (130 Nm) .GRisk of accident
Have the tightening torque checked
immediately after a wheel is changed. The
wheels could come loose if they are not
tightened to a torque of 96 lb-ft (130 Nm).
XTurn the jack back to its initial position and
store it together with the rest of the vehicle
tool kit in the trunk/cargo compartment.XTransport the faulty wheel in the trunk/
cargo compartment.
or
XDepending on the size of the wheel, you
may also be able to secure the faulty wheel
in the spare wheel well. In this case, you
will have to remove the stowage well casing
from the spare wheel well and stow it
securely in the trunk/cargo compartment.
i When you are driving with the collapsible
spare wheel mounted, the tire pressure
loss warning system or the tire pressure
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Directives to be observed
R Only mount tires and wheels of the same
type and make.
R Only mount tires of the correct size onto
the wheels.
R After mounting new tires, run them in at
moderate speeds for the first 60 miles
(100 km) as they only reach their full
performance after this distance.
R Do not use tires until they are excessively
worn as the tire traction on wet road
surfaces decreases significantly when the
tread depth is less than 1
/ 8 in (3 mm).
R If the vehicle is heavily laden, check the tire
pressure and adjust it if necessary.
R When parking your vehicle, make sure that
the tires do not get deformed by the curb
or other obstacles. If it is necessary to drive
over curbs, speed humps or similar
elevations, try to do so slowly and at an
obtuse angle. Otherwise, the tires,
particularly the sidewalls, can get
damaged.
Maintenance and care of wheels and
tires
Checking wheels and tires
GWarning
Regularly check the tires for damage.
Damaged tires can cause tire inflation
pressure loss. As a result, you could lose
control of your vehicle.
Worn, old tires can cause accidents. If the tire
tread is worn to minimum tread depth, or if
the tires have sustained damage, replace
them.
R Regularly check the wheels and tires of
your vehicle for damage (e.g. cuts,
punctures, tears, bulges on tires and
deformation or cracks or severe corrosion
on wheels), at least once a month, as well
as after driving off-road or on rough roads.
Damaged wheels can cause a loss of tire
pressure.
R Regularly check the tire tread depth and
the condition of the tread across the whole
width of the tire (Y page 271). If necessary,
turn the front wheels to full lock in order to
inspect the inner side of the tire surface.
R All wheels must have a valve cap to protect
the valve against dirt and moisture. Do not
install anything on the valve (such as tire
pressure monitoring systems) other than
the standard valve cap or other valve caps
approved by Mercedes-Benz for your
vehicle.
R Regularly check the pressure of all the tires
including the emergency spare wheel or the
spare wheel, particularly prior to long trips,
and correct the pressure as necessary
( Y page 272).
Service life of tires
The service life of tires depends on the
following factors amongst other things:
R driving style
R tire pressure
R mileage
Replace the tires after six years at the latest,
regardless of wear. This also applies to the
emergency spare wheel/spare wheel.
Tire tread
GWarning
Although the applicable federal motor vehicle
safety laws consider a tire to be worn when
the tread wear indicators (TWI) become
visible at approximately 1
/ 16 in (1.6 mm), we
recommend that you do not allow your tires
to wear down to that level. As tread depth
approaches 1
/ 8 in (3 mm), the adhesion
properties on a wet road are sharply reduced.
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Make sure that the tire pressure for normal
speeds is adopted again.
Additional specifications of tire pressure
values for loads can also be found on the tire
pressure table on the inside of the fuel filler
flap.
The tire pressure for emergency spare wheels
can be found:
R on the yellow label on the wheel rim of the
emergency spare wheel
R in the "Wheel and tire combinations"
section ( Y page 293) of this Operator's
Manual
R on the Tire and Loading Information placard
on the B-pillar on the driver's side
i The specifications shown in the examples
in the tire pressure tables are only
examples. Tire pressure specifications are
vehicle-specific and may deviate from the
data shown here. The tire pressure
specifications that are valid for your vehicle
can be found on your vehicle's tire pressure
table.
The tire pressures in the tire pressure table
on the inside of the fuel filler flap are valid for
all approved tires installed at the factory,
unless stated otherwise.
Tire pressure table for all approved tires installed
at the factory (example)
If the tire pressure precedes a tire size, the
tire pressure specification is only valid for this
tire size. The vehicle loading conditions
"partially laden" or "fully laden" are specified
using a differing number of persons and
luggage in the table. The actual number of
seats may differ from this.
Tire pressure table with tire sizes (example)
Some tire pressure tables only show the rim
diameter instead of the complete tire size,
e.g. R18 . The rim diameter is a component of
the tire size and can be read from the tire
sidewall ( Y page 287).
Tire pressure too low or too high
Underinflated tires
GWarning
Follow recommended tire inflation pressures.
Do not underinflate tires. Underinflated tires
wear excessively and/or unevenly, adversely
affect handling and fuel economy, and are
more likely to fail from being overheated.
Underinflated tires can:
R wear excessively and/or unevenly
R adversely affect fuel economy
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GWarning
If the Check Tire Pressure Soon message
appears in the multifunction display, one or
more tires are significantly underinflated.
Stop the vehicle as soon as possible and
inflate the tires to the pressure specified on
the vehicle's Tire and Loading Information
placard or (where available) in the tire
pressure table.
Driving on a significantly underinflated tire
causes the tire to overheat and can lead to
tire failure. Underinflation also reduces fuel
efficiency and tire tread life, and may affect
the vehicle's handling and stopping ability.
Check all tires when cold, including the spare
tire, at least once a month. The tires should
be inflated to the recommended pressure.
This information can be found:
R on the Tire and Loading Information placard
on the B-pillar on the driver's side
or
R in the table for the tire pressure on the
inside of the fuel filler flap
GWarning!
The tire pressure loss warning system does
not provide a warning for wrongly selected tire
inflation pressures. Always adjust tire
inflation pressure according to the Tire and
Loading Information placard on the driver's
door B-pillar or on the tire inflation pressure
label located on the inside of the fuel filler flap.
The tire pressure loss warning system does
not replace regular checks of the tire inflation
pressures since a gradual pressure loss in
more than one tire cannot be detected by the
tire pressure loss warning system.
The tire pressure loss warning system is not
able to issue a warning due to a sudden
dramatic loss of tire inflation pressure (e.g.
tire blowout caused by a foreign object). In
this case bring the vehicle to a halt by carefully
applying the brakes and avoiding abrupt
steering maneuvers.
The function of the tire pressure loss warning
system is limited or delayed if:
R snow chains are mounted on your vehicle.
R road conditions are wintry.
R you are driving on sand or gravel.
R you adopt a very sporty driving style
(cornering at high speeds or driving with
high rates of acceleration).
R you are driving with a heavy cargo (in the
vehicle or on the roof).
Restarting the tire pressure loss
warning system
Restart the tire pressure loss warning system
if you have:
R changed the tire pressure
R changed the wheels or tires
R mounted new wheels or tires
XBefore restarting, refer to the Tire and
Loading Information placard on the
B-pillar on the driver's side or the tire
pressure table on the inside of the fuel filler
flap to ensure the tire pressure in all four
tires is set correctly for the current
operating conditions.XObserve the notes in the section on tire
pressures ( Y page 272).GWarning
The tire pressure loss warning system can
only give reliable warnings if you have set the
correct tire pressure.
If an incorrect tire pressure is set, these
incorrect values will be monitored.
A tire with insufficient pressure results in
vehicle instability when driving, thus
increasing the risk of an accident.
XMake sure that the SmartKey is in
position 2 ( Y page 131) in the ignition lock.XPress the = or ; button to select the
Service menu.276Tire pressuresTires and wheels
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