2015 MERCEDES-BENZ B-CLASS SPORTS flat tire

Tires
Display messagesPossible causes/consequences andMSolutions
Check Tire PresZ
sure Soon
The tire pressure loss warning system has detected a significant
loss in pressure.
A warning tone also sounds.
Possible causes:
R you have changed the positions of the wheels and tires or instal-
led new wheels and tires.
R the tire pressure in one or more tires is not correct.
GWARNING
Tire pressures that are too low pose the following hazards:
R they may burst, especially as the load and vehicle speed
increase.
R they may wear excessively and/or unevenly, which may greatly
impair tire traction.
R the driving characteristics, as well as steering and braking, may
be greatly impaired.
There is a risk of an accident.
X Stop the vehicle without making any sudden steering or braking
maneuvers. Pay attention to the traffic conditions as you do so.
X Secure the vehicle against rolling away ( Ypage 152).
X Check the tires and, if necessary, follow the instructions for a
flat tire ( Ypage 284).
X Check the tire pressures and, if necessary, correct the tire pres-
sure.
X Restart the tire pressure loss warning system when the tire
pressure is correct ( Ypage 309).
Check Tire PresZ
sure Then Restart
Run Flat Indicator
The tire pressure loss warning system generated a display mes-
sage and has not been restarted since.
X Set the correct tire pressure in all four tires.
X Restart the tire pressure loss warning system ( Ypage 309).
RunFlatIndicator
inoperative
The tire pressure loss warning system is faulty.
X Visit a qualified specialist workshop.
Display messages229
On-board computer and displays
Z

Always close the cargo compartment floor
before a journey.
!The maximum load capacity of the stow-
age well under the cargo compartment
floor is 55 lbs (25 kg).
There is a stowage area for TIREFIT, the vehi-
cle tool kit, a folding box, etc. underneath the
cargo compartment floor.
Opening/closing the cargo compart-
ment floor
X To open: open the tailgate.
X Holding ribbing ;, press handle :down-
wards.
Handle :folds up.
X Swing the cargo compartment floor
upwards using handle :until it rests
against the cargo compartment cover.
X Fold out hook =on the underside of the
cargo compartment floor.
X Attach hook =to the cargo compart-
ment's upper seal ?.
X To close: detach hook =from upper
seal ?.
X Fasten hook =to the bracket on the
underside of the cargo compartment floor.
X Fold the cargo compartment floor down.
X Press the cargo compartment floor down
until it engages.
Setting the height of the cargo compart-
ment floor
The stowage well under the cargo compart-
ment floor can be increased or decreased in
size as necessary. To do this, you can lock thefloor at two different heights. The upper catch gives a flat load surface when the rear bench
seat is folded forward.
X To raise: using handle :, lift up cargo
compartment floor ;in the direction of
arrow =and pull it upwards.
X Lower cargo compartment floor ;again.
To do this, push the cargo compartment
258Stowage areas
Sto wage an d features

Useful information............................284
Where will I find...? ...........................284
Flat tire .............................................. 284
Battery (vehicle) ................................ 289
Jump-starting .................................... 293
Towing and tow-starting ..................295
Fuses .................................................. 298
283
Roadside Assistance

Useful information
iThis Operator's Manual describes all
models and all standard and optional equip- ment of your vehicle available at the time of
publication of the Operator's Manual.
Country-specific differences are possible.
Please note that your vehicle may not be
equipped with all features described. This
also applies to safety-related systems and
functions.
iRead the information on qualified special-
ist workshops ( Ypage 24).
Where will I find...?
Vehicle tool kit
General notes
Vehicles with a TIREFIT kit: the TIREFIT kit is
located in the stowage well under the cargo
compartment floor.
Vehicles with a tire-change tool kit: the tire-
change tool kit is in the stowage well under
the cargo compartment floor.
For vehicles with an emergency spare wheel, see "Removing the emergency spare wheel" ( Y page 330).
iApart from certain country-specific varia-
tions, the vehicles are not equipped with a
tire-change tool kit. Some tools for chang-
ing a wheel are specific to the vehicle. For
more information on which tire changing
tools are required and approved to perform
a wheel change on your vehicle, consult a
qualified specialist workshop.
Tools required for changing a wheel may
include, for example:
R Jack
R Wheel chock
R Lug wrench
R Alignment bolt
Vehicles with a TIREFIT kit
:Tire inflation compressor
;Tire sealant filler bottle
=Towing eye
X Open the tailgate.
X Lift the cargo compartment floor upwards (Y page 258).
X Use the TIREFIT kit ( Ypage 286).
Vehicles with a tire-change tool kit
X
Open the tailgate.
X Lift the cargo compartment floor upwards (Y page 258).
X Remove the tire-change tool kit.
The tire-change tool kit contains: R Jack
R Lug wrench
R One pair of gloves
R Folding wheel chock
Flat tire
Preparing the vehicle
Your vehicle may be equipped with:
R MOExtended tires (tires with run-flat prop-
erties) ( Ypage 285)
Vehicle preparation is not necessary on
vehicles with MOExtended tires
R a TIREFIT kit ( Ypage 284)
R an emergency spare wheel (only for certain
countries) ( Ypage 329)
284Flat tire
Roadside Assistance

Information on changing/mounting a wheel (Y page 322).
X Stop the vehicle on solid, non-slippery and
level ground, as far away as possible fromtraffic.
X Switch on the hazard warning lamps.
X Secure the vehicle against rolling away(Y page 152).
X If possible, bring the front wheels into the
straight-ahead position.
X Switch off the engine.
X Vehicles without KEYLESS-GO: remove
the SmartKey from the ignition lock.
X Vehicles with KEYLESS-GO start-func-
tion or KEYLESS-GO: open the driver's
door.
The on-board electronics now have status0 . This is the same as the SmartKey having
been removed.
X Vehicles with KEYLESS-GO start-func-
tion or KEYLESS-GO: remove the Start/
Stop button from the ignition lock ( Y page 135).
X All occupants must get out of the vehicle.
Make sure that they are not endangered as
they do so.
X Make sure that no one is near the danger
area while a wheel is being changed. Any-
one who is not directly assisting in the
wheel change should, for example, stand
behind the barrier.
X Get out of the vehicle. Pay attention to traf-
fic conditions when doing so.
X Close the driver's door.
iVehicles equipped with MOExtended tires
are not equipped with a TIREFIT kit at the
factory. It is therefore recommended that
you additionally equip your vehicle with a
TIREFIT kit if you mount tires that do not
feature run-flat properties, e.g. winter tires.
A TIREFIT kit can be obtained from a quali-
fied specialist workshop.
MOExtended tires (tires with run-flat properties)
General notes
With MOExtended tires (tires with run flat
characteristics), you can continue to drive
your vehicle even if there is a total loss of
pressure in one or more tires. The affected
tire must not show any clearly visible damage.
You can recognize MOExtended tires by the
MOExtended marking which appears on the
sidewall of the tire. You will find this marking next to the tire size designation, the load-
bearing capacity and the speed index( Y page 316).
MOExtended tires may only be used in con-
junction with an active tire pressure loss
warning system.
If a pressure loss warning message
appears in the multifunction display:
R observe the instructions in the display mes-
sages ( Ypage 229).
R check the tire for damage.
R if driving on, observe the following notes.
The driving distance possible in run-flat mode is approximately 50 miles (80 km) when the
vehicle is partially laden and approximately
18 miles (30 km) when the vehicle is fully
laden.
In addition to the vehicle load, the driving dis-
tance possible depends upon:
R vehicle speed
R road condition
R outside temperature
The driving distance possible in run-flat mode may be reduced by extreme driving condi-
tions/maneuvers, or it can be increased
through a moderate style of driving.
The driving distance possible in run-flat modeis counted from the moment the tire pressure
loss warning appears in the multifunction dis-
play.
You must not exceed a maximum speed of
50 mph (80 km/h).
Flat tire285
Roadside Assistance

When replacing one or all tires, please
observe the following specifications for your
vehicle's tires:
R size
R type and
R the "MOExtended" mark
If a tire has gone flat and cannot be replaced
with a MOExtended tire, a standard tire may
be used as a temporary measure. Make sure
that you use the proper size and type (sum-
mer or winter tire).
Vehicles equipped with MOExtended tires are
not equipped with a TIREFIT kit at the factory. It is therefore recommended that you addi-
tionally equip your vehicle with a TIREFIT kit if
you mount tires that do not feature run-flat
properties, e.g. winter tires. A TIREFIT kit may
be obtained from a qualified specialist work-shop.
Important safety notes
GWARNING
When driving in emergency mode, the driving characteristics deteriorate, e.g. when corner-
ing, accelerating quickly and when braking.
There is a risk of an accident.
Do not exceed the stated maximum speed.
Avoid abrupt steering and driving maneuvers,
and driving over obstacles (curbs, potholes,
off-road). This applies in particular to a ladenvehicle.
Stop driving in emergency mode if:
R you hear banging noises.
R the vehicle starts to shake.
R you see smoke and smell rubber.
R ESP ®
is intervening constantly.
R there are tears in the sidewalls of the tire.
After driving in emergency mode, have the
wheel rims checked at a qualified specialist
workshop with regard to their further use. The defective tire must be replaced in every case.
TIREFIT kit
Important safety notes
TIREFIT is a tire sealant.
You can use TIREFIT to seal punctures of up to 0.16 in (4 mm), particularly those in the tire
tread. You can use TIREFIT at outside tem-
peratures down to Ò4 ‡ ( Ò20 †).
GWARNING
In the following situations, the tire sealant is
unable to provide sufficient breakdown assis-
tance, as it is unable to seal the tire properly:
R there are cuts or punctures in the tire larger
than those mentioned above.
R the wheel rim is damaged.
R you have driven at very low tire pressures or
on a flat tire.
There is a risk of an accident.
Do not drive the vehicle. Contact a qualified
specialist workshop.
GWARNING
The tire sealant is harmful and causes irrita-
tion. It must not come into contact with your
skin, eyes or clothing or be swallowed. Do not inhale TIREFIT fumes. Keep tire sealant away
from children. There is a risk of injury.
If you come into contact with the tire sealant,
observe the following:
R Rinse off the tire sealant from your skin
immediately with water.
R If the tire sealant comes into contact with
your eyes, immediately rinse them thor-
oughly with clean water.
R If tire sealant is swallowed, immediately
rinse your mouth out thoroughly and drink
plenty of water. Do not induce vomiting,
and seek medical attention immediately.
R Immediately change out of clothing which
has come into contact with tire sealant.
R If an allergic reaction occurs, seek medical
attention immediately.
286Flat tire
Roadside Assistance

!Do not operate the tire inflation compres-
sor for longer than ten minutes at a time
without a break. It may otherwise overheat.
The tire inflation compressor can be oper-
ated again once it has cooled down.
Comply with the manufacturer’s safety
instructions on the sticker on the tire inflation
compressor.
Using the TIREFIT kit
X Do not remove any foreign objects which
have penetrated the tire, e.g. screws ornails.
X Remove the tire sealant bottle, the accom-
panying TIREFIT sticker and the tire infla-
tion compressor from the stowage well
underneath the cargo compartment floor( Y page 284).
X Affix part :of the TIREFIT sticker to the
instrument cluster within the driver's field
of vision.
X Affix part ;of the TIREFIT sticker near the
valve on the wheel with the defective tire.
X Remove filler hose Band connector =
from the bottom section of the tire inflation compressor housing ;.
X Slide the yellow filler hose connector into
the mounting on yellow cap Aof tire seal-
ant bottle :until the connector engages.
X With the sealing rings in front, slide yellowcap Aof tire sealant bottle :into the
mounting of tire inflation compressor ;
until the cap and both hooks engage.
X Remove the cap from valve Con the faulty
tire.
X Screw filler hose Donto valve C.
X Insert connector =into a 12 V socket
( Y page 262) in your vehicle.
X Turn the SmartKey to position 1in the igni-
tion lock ( Ypage 135).
X Press on/off switch ?on the tire inflation
compressor to ON.
The tire inflation compressor is switched
on. The tire is inflated.
First, tire sealant is pumped into the tire.
The pressure can briefly rise to approx-
imately 500 kPa (5 bar/73 psi).
Do not switch off the tire inflation com-
pressor during this phase.
X Let the tire inflation compressor run for a
maximum of ten minutes. The tire should
then have attained a pressure of at least
200 kPa (2.0 bar/29 psi).
If a pressure of 200 kPa (2.0 bar/29 psi) has
been attained after ten minutes, see "Tire
pressure reached" ( Ypage 288).
Flat tire287
Roadside Assistance
Z

If a pressure of 200 kPa (2.0 bar/29 psi) hasnot been attained after ten minutes, see "Tire
pressure not reached" ( Ypage 288).
If tire sealant leaks out, allow it to dry. It can
then be removed like a layer of film.
If your clothes are soiled with tire sealant,
have them cleaned with perchloroethylene at a dry cleaner as soon as possible.
Tire pressure not reached
If a tire pressure of 200 kPa (2.0 bar/29 psi)has not been achieved after ten minutes: X Switch off the tire inflation compressor.
X Unscrew the filler hose from the valve of
the faulty tire.
X Very slowly drive forwards or reverse
approximately 30 ft (10 m).
X Pump up the tire again.
After a maximum of ten minutes, the tire
pressure must be at least 200 kPa (2.0 bar/
29 psi).
GWARNING
If the required tire pressure is not reached
after the specified time, the tire is too badly
damaged. The tire sealant cannot repair the
tire in this instance. Damaged tires and a tirepressure that is too low can significantly
impair the vehicle's braking and driving char-
acteristics. There is a risk of accident.
Do not continue driving. Contact a qualified
specialist workshop.
Tire pressure reached
GWARNING
A tire temporarily sealed with tire sealant
impairs the driving characteristics and is not
suitable for higher speeds. There is a risk ofaccident.
You should therefore adapt your driving style
accordingly and drive carefully. Do not exceed the specified maximum speed with a tire that
has been repaired using tire sealant. The maximum speed for a tire sealed with tire
sealant is 50 mph (80 km/h). The upper part of the TIREFIT sticker must be affixed to the
instrument cluster in the driver's field ofvision.
!Residue from the tire sealant may come
out of the filler hose after use. This could
cause stains.
Therefore, place the filler hose in the plastic bag which contained the TIREFIT kit.
HEnvironmental note
Have the used tire sealant bottle disposed of
professionally, e.g. at a qualified specialistworkshop.
If a tire pressure of 200 kPa (2.0 bar/29 psi)
has been achieved after ten minutes:
X Switch off the tire inflation compressor.
X Unscrew the filler hose from the valve of
the faulty tire.
X Stow the tire sealant bottle and the tire
inflation compressor.
X Pull away immediately .
X Stop after driving for approximately ten
minutes and check the tire pressure with
the tire inflation compressor.
The tire pressure must now be at least
130 kPa (1.3 bar/19 psi).
GWARNING
If the required tire pressure is not reached
after driving for a short period, the tire is too
badly damaged. The tire sealant cannot repair
the tire in this instance. Damaged tires and a
tire pressure that is too low can significantly
impair the vehicle's braking and driving char-
acteristics. There is a risk of accident.
Do not continue driving. Contact a qualified
specialist workshop.
iIn cases such as the one mentioned
above, contact an authorized Mercedes-
Benz Center. Or call 1-800-FOR-MERCedes
(in the USA) or 1-800-387-0100 (in Can-
ada).
288Flat tire
Roadside Assistance