2014 MERCEDES-BENZ B-CLASS SPORTS Owners Manual

X
Open the tailgate.
X Lift the cargo compartment floor up
(Y page 259).
i Towing eye 0010is located under tire
inflation compressor 001A.
Vehiclesw ithatire-change tool kit X
Open the tailgate.
X Lift the carg ocompartmen tfloor up
(Y page 259).
X Remove the tire-change too lkit.
The tire-chang etoolkit contains:
R Jack
R Lug wrench
R One pair of gloves
R Foldin gwheel chock Flat tire
Preparing th
evehicle
Your vehicle may be equipped with:
R MOExtende dtires (tires with run-flat
properties )(Y page 295)
Vehicle preparation is not necessary on
vehicles with MOExtende dtires.
R aT IREFIT kit (Y page 294)
Information on changing/mounting awheel
(Y page 337).
X Stop the vehicle on solid, non-slippery and
level ground, as far away as possible from
traffic.
X Switch on the hazar dwarnin glamps.
X Secure the vehicle against rollin gaway
(Y page 152).
X If possible ,brin gthe front wheels int othe
straight-ahead position.
X Switch off the engine.
X Remove the SmartKey fro mthe ignition
lock. X
All occupant smust get out of the vehicle.
Make sure that the yare not endangered as
the ydos o.
X Make sure that no one is near the danger
area while awheel is being changed.
Anyone who is not directly assisting in the
wheel change should, for example, stand
behin dthe barrier.
X Get out of the vehicle. Pay attention to
traffic conditions when doing so.
X Close the driver's door.
i Vehicles equipped with MOExtende dtires
are not equipped with aTIREFIT kit at the
factory. It is therefore recommende dthat
you additionally equip your vehicle with a
TIREFIT kit if you moun ttires that do not
feature run-flat properties ,e.g. winter tires.
AT IREFIT kit can be obtained fro ma
qualified specialist workshop. MOExtended tires (tires with run-flat
properties)
General notes With MOExtende
dtires (tires with run flat
characteristics), you can continue to drive
your vehicle even if there is atotal loss of
pressure in one or mor etires. The affected
tir em ust not show any clearly visible damage.
You can recognize MOExtende dtires by the
MOExtende dmarking which appears on the
sidewall of the tire. You will fin dthis marking
nex ttot he tire size designation, the load-
bearing capacity and the speed index
(Y page 330).
MOExtended tires may only be used in
conjunction with an active tire pressure loss
warning system.
If the pressur eloss warning message
appears in the multifunction display:
R Observe the instructions in the display
messages (Y page 231).
R Check the tire for damage.
R If driving on, observe the following notes. Flat tire
295Breakdown assistance

The maximum driving distanc
eis
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
distanc epossible depends upon:
R Speed
R Road condition
R Outside temperature
The driving distanc epossible in run-flat mode
may be reduced by extreme driving
conditions/maneuvers, or it can be increased
through amoderate style of driving.
The maximum permissible distanc ewhich
can be driven in run-flat mode is counted from
the moment the tire pressure loss warning
appears in the multifunction display.
You must not exceed amaximum speed of
50 mph (80 km/h).
i When replacing one or all tires, make sure
that you use only tires:
R of the size specified for the vehicle and
R marked "MOExtended"
If at ire has gone flat and cannot be
replaced with aMOExtended tire, a
standard tire may be used as atemporary
measure. Make sure that you use the
proper size and type (summer or winter
tire).
i Vehicles equipped with MOExtended tires
are not equipped with aTIREFIT 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.
AT IREFIT kit can be obtained from a
qualified specialist workshop.
Important safety notes G
WARNING
When driving in emergenc ymode, the driving
characteristics deteriorate, e.g. when cornering, acceleratin
gquickly and when
braking. There is arisk of an accident.
Do not exceed the stated maximum speed.
Avoid abrupt steerin gand driving maneuvers,
and driving over obstacles (curbs, potholes,
off-road). This applies in particular to aladen
vehicle.
Stop driving in emergenc ymode if:
R you hear banging noises.
R the vehicle start stoshake.
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 emergenc ymode, have the
wheel rims checked at aqualified specialist
workshop with regard to their further use. The
defective tire must be replaced in every case. TIREFIT kit
Important safety notes TIREFIT is
atire sealant.
You can use TIREFIT to seal punctures of up
to 0.16in(4m m),particularl ythose in the tire
tread. Yo ucan us eTIREFIT at outside
temperatures down to 000F4‡(000F20 †). G
WARNING
In the following situations, the tir esealan tis
unabl etop rovide sufficient breakdown
assistance, as it is unabl etosealthe tire
properly:
R there ar ecutsorp unctures in the tir elarger
tha nthose mentioned above.
R the wheel rim is damaged.
R you have driven at very low tire pressures
or on aflat tire.
There is arisk of an accident.
Do not drive the vehicle. Contact aqualified
specialist workshop. 296
Flat tireBreakdown assistance

G
WARNING
The tire sealant is harmfu land causes
irritation. It must not come into contact with
your skin, eyes or clothing or be swallowed.
Do not inhal eTIREFIT fumes. Kee ptire sealant
away from children. There is ariskofi njury.
If yo ucome into contact with the tire sealant,
observe the following:
R Rinse off the tire sealant from your skin
immediatel ywithw ater.
R If the tire sealant come sinto contact with
your eyes, immediatel yrins ethem
thoroughl ywithc lean water.
R If tire sealant is swallowed, immediately
rins eyourm outh ou tthoroughly 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.
Using the TIREFIT kit TIREFIT sticker, 2-part
X
Do not remove any foreign objectsw hich
have penetrated the tire, e.g. screws or
nails.
X Remove the tire sealant bottle, the
accompanying TIREFIT sticker and the tire
inflation compressor from the stowage well
underneath the cargo compartmentf loor
(Y page 294). X
Affix part 001Aof the TIREFIT sticker within
the driver's field of vision.
X Affix part 0010of the TIREFIT sticker near the
valve on the wheel with the defective tire. X
Remove filler hose 0024and plug 0023from the
bottom section of the tire inflation
compressor housing.
X Slide the yellow filler hose connector into
the mounting on yellow cap 001Eof tire
sealant bottle 001Auntil the plug engages.
X With the sealing rings in front,s lide yellow
cap 001Eof tire sealant bottle 001Ainto the
mounting of tire inflation compressor 0010
until the cap and both hooks engage. X
Remove the cap from valve 0007on the faulty
tire.
X Screw filler hose 0008onto valve.
X Insert plug 0023into the socket of the
cigarette lighter (Y page 264) or intoa12V
power socket in your vehicle (Y page 264).
X Turn the SmartKey to position 1in the
ignition lock (Y page 137). Flat tire
297Breakdown assistance Z

X
Press on/of fswitch 0021on th etirei nflation
compressor to ON.
The tir einflatio ncompressor is switched
on. The tire is inflated.
i First,t ire sealant is pumped into the tire.
The pressure can briefly rise to
approximately 500 kPa (5 bar/73 psi).
Do not switch off the tire inflation
compressor during this phase.
X Let the tire inflation compressor run for a
maximum of ten minutes. The tire should
then have attained apressure of at least
200 kPa (2.0 bar/29 psi).
! Do not operate the tire inflation
compressor for longer than ten minutes at
at ime without abreak. It may otherwise
overheat.
The tire inflation compressor can be
operated again once it has cooled down.
If at ire pressure of 200 kPa (2.0 ba r/29 psi)
is achieved after amaximu moften minutes,
see (Y page298).
If at ire pressure of 200 kPa (2.0 ba r/29 psi)
is not achieved after amaximu moften
minutes, see (Y page298).
i If tire sealant leaks out, allow it to dry .It
can then be removed like alayer of film.
If yourc lothes are soiled with tir esealant,
have the mcleaned with perchloroethylene
at ad ry cleaner as soon as possible.
Tir ep ressur enot reached If
ap ressure of 200 kPa (2.0 ba r/29 psi )has
not bee nachieved 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 amaximu moften minutes, the tire
pressure must be at least 200 kPa (2.0 bar/
29 psi). G
WARNING
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 atire
pressure that is too low can significantly
impair the vehicle's braking and driving
characteristics .There is arisk of accident.
Do not continue driving. Contact aqualified
specialist workshop.
Tire pressure reached G
WARNING
At ire temporarily sealed with tir esealant
impairs the drivin gcharacteristics and is not
suitable for higher speeds. There is arisk of
accident.
You should therefore adapt your drivin gstyle
accordingly and drive carefully. Do not exceed
the specified maximum speed with atiret hat
has been repaire dusing tir esealant.
! After use, excess tir esealant may run out
of the filler hose. This could cause stains.
Therefore, place the filler hose in the plastic
bag that contained the TIREFIT kit. H
Environmental note
Have the used tir esealant bottle dispose dof
professionally, e.g. at aqualifie dspecialist
workshop.
If at ire pressure of 200 kPa (2.0 ba r/29 psi)
has bee nachieved afte rten minutes:
X Switc hoff 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.
The maximum speed for atire sealed with tire
sealant is 50 mph (80k m/h). The upper part
of the TIREFIT sticker must be affixed to the
instrument cluster in the driver' sfieldof
vision. 298
Flat tireBreakdown assistance

X
Stop afte rdriving for approximatel yten
minutes and check the tire pressure with
the tire inflation compressor.
The tire pressure mus tnow be at least
130 kPa (1.3 bar/19 psi). G
WARNING
If the required tire pressure is not reached
after driving for ashort 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
characteristics. There is arisk of accident.
Do not continue driving. Contact aqualified
specialist workshop.
X Correct the tire pressure if it is still at least
130 kPa (1.3 bar/19 psi) (for the values,
see the Tire and Loading Information
placard on the driver's side B-pillar or tire
pressure table on the fuel filler flap).
X To increase the tire pressure: switch on
the tire inflation compressor. X
To reduce the tire pressure: depress
pressure release button 001Anext to
pressure gauge 0010. X
To remove the tire sealant bottle from the
tire inflation compressor ,press together
the lockin gtabs on the yellow cap.
X Pull the tire sealant bottle out of the tire
inflation compressor.
The filler hose remains attached to the tire
sealant bottle.
X Stow the tire sealant bottle and the tire
inflation compressor.
X Drive to the nearest qualified specialist
workshop and have the tire changed there.
X Have the tire sealant bottle and the filler
hose replaced as soon as possible at a
qualified specialist workshop.
X Have the tire sealant bottle replaced every
four years at aqualified specialist
workshop. Battery (vehicle)
Important safety notes
Special tools and expert knowledge are
required when working on the battery, e.g.
removal and installing. You should therefore
have all work involving the battery carried out
at aq ualified specialist workshop. Battery (vehicle)
299Breakdown assistance Z

G
WARNING
Work carrie dout incorrectly on the battery
can lead, for example, to ashort circui tand
thus damage the vehicl eelectronics. This can
leadtof unction restrictions applying to
safety-relevant systems ,e.g. the lighting
system, ABS (anti-lock braking system) or
ESP ®
(Electronic Stability Program). The
operating safety of yourv ehicle may be
restricted. You could lose control of the
vehicle, for example:
R braking
R in the event of abrupt steerin gmaneuver
and/or when the vehicle's speed is not
adapted to the road conditions
There is arisk of an accident.
In the event of ashort circuit or asimilar
incident, contact aqualified specialist
workshop immediately. Do not drive any
further. You should have all work involvin gthe
batter ycarried out at aqualifie dspecialist
workshop.
For further informatio nabout AB Sand ESP ®
,
see (Y page 63 )and ( Ypage 67). G
WARNING
Electrostatic build-up can lead to th ecreation
of sparks ,whic hc ould ignite th ehighly
explosive gases of abattery. Ther eisariskof
an explosion.
Before handlin gthe battery, touch th evehicle
body to remove any existing electrostatic
build-up.
The highly flammable gas mixtur eforms when
chargin gthe battery as well as when jump-
starting.
Always mak esure that neither you no rthe
battery is electrostatically charged. Abuild-
up of electrostati ccharge can be caused, for
example:
R by wearing clothing made from synthetic
fibers
R due to friction between clothing and seats R
if you push or pull the battery across the
carpet or other synthetic materials
R if you wipe the battery with acloth G
WARNING
During the charging process, abattery
produces hydrogen gas. If ashort circuit
occurs or sparks are created, the hydrogen
gas can ignite. There is arisk of an explosion.
R Make sure that the positive terminal of a
connected battery does not come into
contact with vehicle parts.
R Never place metal objectsort ools on a
battery.
R It is important that you observe the
described order of the battery terminals
when connecting and disconnecting a
battery.
R When jump-starting, make sure that the
battery poles with identical polarity are
connected.
R It is particularly important to observe the
described order when connecting and
disconnecting the jumper cables.
R Never connect or disconnectt he battery
terminals while the engine is running. G
WARNING
Batterya cid is caustic. There is arisk of injury.
Avoid contact with the skin, eyes or clothing.
Do not inhale any battery gases. Do not lean
over the battery. Keep children away from
batteries. Wash battery acid immediately with
water and seek medical attention. H
Environmental note Batteries contain dangerous
substances. It is against the
law to dispose of them with
the household rubbish. They
must be collected separately
and recycled to protect the
environment.
Dispose of batteries in an
environmentally friendly
manner. Take discharged300
Battery (vehicle)Breakdown assistance

batteries to
aqualified
specialist workshop or a
special collection point for
used batteries.
! Have the battery checked regularly at a
qualified specialist workshop.
Observe the servic eintervals in the
Maintenance Booklet or contact aqualified
specialist workshop for more information.
! You should have all work involving the
battery carried out at aqualified specialist
workshop. In th eexcepti onal cas ethatitis
necessar yfor you to disconnect th ebattery
yourself, mak esure that:
R you switch off th eenginea nd remove the
SmartKey. Chec kthata ll th eindicator
lamps in th einstrumen tcluste rare off.
Otherwise, electronic components, such
as th ealternator, may be damaged.
R you first remove th enegative terminal
clam pand then th epositive terminal
clamp. Never swap th etermi nal clamps.
Otherwise, th evehicle's electronic
system may be damaged.
R on vehicles wit hautomatic transmission,
th et ransmission is locke dinposition P
after disconnecting th ebattery. The
vehicl eissecured against rollin gaway.
You can then no longer mov ethe vehicle.
The battery and th ecover of th epositive
terminal clam pmust be installed securely
durin goperation.
Comply wit hsafet yprecaution sand take
protective measures when handling
batteries. Risk of explosion.
Fire, open flames and smokin
gare
prohibited when handlin gthe
battery. Avoid creating sparks. Battery acid is caustic. Avoid
contact wit
hskin, eyes or clothing.
Wear suitable protective clothing,
especially gloves, apro nand
faceguard.
Rinse any aci dspillsimmediately
with clear water. Contact a
physician if necessary. Wear ey
eprotection. Kee
pchildren away. Observ
ethisO perator' sManual.
For safety reasons ,Mercedes–Benz
recommends tha tyou only use batteries that
have been tested and approved for your
vehicle by Mercedes-Benz. These batteries
have greater impact resistanc eand as aresult
there is no risk of acid burns to occupants
when abattery is damaged in an accident.
In order for the battery to achieve the
maximum possible service life, it must always
be sufficiently charged.
Like other batteries, the vehicle battery may
discharge over time if you do not use the
vehicle. In this case, have the battery
disconnected at aqualified specialist
workshop. You can also charge the battery
with acharger recommended by Mercedes-
Benz.C ontactaqualified specialist workshop
for further information.
Have the battery condition of charge checked
more frequently if you use the vehicle mainly
for short trips or if you leave it standin gidle
for alengthy period. Consult aqualified
specialist workshop if you wish to leave your
vehicle parked for along period of time.
Only replace abattery with abattery that has
been recommended by Mercedes-Benz. Battery (vehicle)
301Breakdown assistance Z

i
Remove th eSmartKey if you park the
vehicl eand do no trequire any electrical
consumers. The vehicle will then use very
little energy, thus conservin gbattery
power.
i If the power supply has been interrupted,
e.g. if you reconnectt he battery, you will
have to:
R set the clock (audio system/COMAND,
see the separate operating instructions).
R reset the function for folding the exterior
mirrors in/out automatically ,byfolding
the mirrors out once (Y page 100).Charging the battery
G
WARNING
During charging and jump-starting, explosive
gases can escape from the battery. There is a
risk of an explosion.
Particularly avoid fire, open flames, creating
sparks and smoking. Ensure there is sufficient
ventilation while charging and jump-starting.
Do not lean over abattery. G
WARNING
Batterya cid is caustic. There is arisk of injury.
Avoid contact with the skin, eyes or clothing.
Do not inhale any battery gases. Do not lean
over the battery. Keep children away from
batteries. Wash battery acid immediately with
water and seek medical attention. G
WARNING
Ad ischarged battery can freeze at
temperatures below freezin gpoint .When
jump-starting the vehicle or charging the
battery, gases can escape from the battery.
There is arisk of an explosion.
Allow the frozen battery to thaw out before
charging it or jump-starting.
! Only use battery chargers with a
maximum charging voltage of 14.8 V. !
Only charge the battery using the jump-
startingc onnection point.
The jump-starting connection point is in the
engine compartment( Ypage 303).
X Open the hood.
X Connect the battery charger to the positive
terminal and ground point in the same
order as when connecting the donor
battery in the jump-starting procedure
(Y page 303).
If, at low temperatures, the indicator lamps/
warning lamps in the instrumentc luster do
not light up, it is highly likely that the
discharged battery has frozen.Int his case
you may neither jump-start the vehicle nor
charge the battery. The service life of a
thawed-out battery may be shorter. The
startingc haracteristics can be impaired,
particularly at low temperatures. Have the
thawed-out battery checked at aqualified
specialist workshop.
Only charge the installed battery with a
battery charger which has been tested and
approved by Mercedes-Benz. An accessory
battery charge unit specially adapted for
Mercedes-Ben zvehicles and tested and
approved by Mercedes-Benzisa vailable. It
permits the charging of the battery in its
installed position. Contact an authorized
Mercedes-Benz Center for further
information and availability. Read the battery
charger's operating instructions before
charging the battery. 302
Battery (vehicle)Breakdown assistance