MERCEDES-BENZ B-CLASS SPORTS 2014 Owners Manual

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

Jump-starting
For the jump-starting procedure, use only the jump-starting connection point, consisting of a
positive terminal and an earth point, in the engine compartment. G
WARNING
Battery acid 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
During charging and jump-starting, explosive gases can escape from the battery. There is arisk
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
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 aconnected battery does not come into contact with
vehicle parts.
R Never place metal objects or tools on abattery.
R It is important that you observe the described order of the battery terminals when connecting
and disconnecting abattery.
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
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.
! Avoid repeated and lengthy startinga ttempts. Otherwise, the catalytic converter could be
damaged by the non-combusted fuel.
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 .Inthis case you may neither
jump-start the vehicle nor charge the battery. The service life of athawed-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. Jump-starting
303Breakdown assistance Z

Do not start the vehicl
eusing arapid charging device. If your vehicle's battery is discharged,
the engine can be jump-started from another vehicle or from asecond battery using jumper
cables. Observe the following points:
R The battery is not accessible in all vehicles. If the other vehicle's battery is not accessible,
jump-start the vehicle using asecond battery or ajump-starting device.
R You may only jump-start th evehicl ewhen th eenginea nd exhaust system are cold.
R Do no tstart th eengineift hebattery is frozen .Let th ebattery thaw first.
R Only jump-start from batteries wit ha12Vvoltagerating.
R Only use jumper cables whic hhave asufficien tcross-section and insulated terminal clamps.
R If the battery is full ydischarged, leave the battery that is being usedtoj ump-start connected
for afew minutes before attempting to start. This charge sthe battery slightly.
R Make sure that the two vehicles do not touch.
Make sure that:
R the jumper cables are not damaged.
R bare parts of the terminal clamp do not come into contact with other metal parts while the
jumper cables are connected to the battery.
R the jumper cables cannot come into contact with parts which can move when the engine
is running, such as the V-belt pulley or the fan.
X Secure the vehicl ebyapplying the electric parking brake.
X Shift the transmission to position P.
X Turn the SmartKey to position 0in the ignitio nlock and remove it.
X Switch off all electrical consumers, e.g. rear windo wdefroster, lighting, etc.
X Open the hood. 304
Jump-startingBreakdown assistance

Position number
0024identifies the charged batter yofthe other vehicle or an equivalent jump-
starting device.
X Press together cover 001Aof positive clamp 0010and slide it back.
X Connec tpositive terminal 0010on your vehicle to positive terminal 0023of donor battery 0024
using the jumper cable, beginning with your own battery.
X Start the engine of the donor vehicle and run it at idling speed.
X Connect negative terminal 0021of donor battery 0024to ground point 001Eof your vehicle using
the jumper cable, connectingt he jumper cable to battery of other vehicle 0024first.
X Start the engine.
X Before disconnectingt he jumper cables, let the engine run for several minutes.
X First,r emove the jumper cables from earth point 001Eand negative terminal 0021,then from
positive clamp 0010and positive terminal 0023.Begin each time at the contacts on your own
vehicle first.
X Close cover 001Aof positive terminal 0010after removing the jumper cables.
X Have the battery checked at aqualified specialist workshop.
i Jump-starting is not considered to be anormal operating condition.
i Jumper cables and further information regarding jump-starting can be obtained at any
qualified specialist workshop. Towing and tow-starting
Important safety notes
G
WARNING
Functions relevant to safety are restricted or
no longer available if:
R the engine is not running.
R the brake system or the power steerin gis
malfunctioning.
R there is amalfunction in the voltage supply
or the vehicle's electrical system.
If your vehicle is being towed, much more
force may be necessary to steer or brake.
There is arisk of an accident.
In such cases, use atow bar. Before towing,
make sure that the steering moves freely. G
WARNING
If the weight of the vehicle to be towed or tow-
started is greater than the permissible gross
weight of your vehicle:
R the towing eye could detach itself
R the vehicle/trailer combination could
rollover.
There is arisk of an accident.
When towing or tow-starting another vehicle,
its weight should not be greater than the
permissible gross weight of your vehicle.
Information on your vehicle's gross vehicle
weight rating can be found on the vehicle
identification plate (Y page 346). Towing and tow-starting
305Breakdown assistance Z

!
When COLLISION PREVENTION ASSIST
PLUS, DISTRONIC PLUS or the HOLD
function is activated, the vehicle brakes
automaticallyinc ertain situations. To avoid
damage to the vehicle, deactivate these
systems in the following or similar
situations:
R when towing the vehicle
R in the car wash
! Only secure the tow rope or tow bar at the
towing eyes. Otherwise, the vehicle could
be damaged.
! Do not use the towing eyes for recovery
purposes as this could damage the vehicle.
If in doubt, recover the vehicle with acrane.
! When towing, pull aways lowlyand
smoothly. If the tractive power is too high,
the vehicles could be damaged.
! The vehicle can be towed amaximum of
30 miles (50km). The towing speed of
30 mph (50km/h) must not be exceeded.
If the vehicle has to be towed more than
30 miles (50km), the front axle must be
raised or the entire vehicle raised and
transported.
! Do not tow with sling-type equipment.
This could damage the vehicle.
! Vehicles with automatic transmission
must not be started by tow-starting. This
could otherwise damage the transmission.
It is better to have the vehicle transported
than to have it towed.
When towing avehicle, the transmission must
be in position N.
The battery must be connected and charged.
Otherwise, you:
R cannot turn the SmartKey to position 2in
the ignition lock
R cannot shift the transmission to position
N.
i Disarm the automatic locking feature
before the vehicle is towed (Y page 205).You could otherwise be locked out when
pushing or towing the vehicle. Installing/removing the towing eye
Installingt he towing eye Example: towing eye mounting covers
X
Remove the towing eye from the stowage
space.
The towing eye is beneath the cargo
compartment floor with the vehicle tool kit
(Y page 294).
Vehicles with the TIREFIT kit: the towing
eye is beneath the tire inflation
compressor.
X Press the mark on cover 001Ainwards in the
direction of the arrow.
X Take cover 001Aoff the opening.
X Screw in and tighten the towing eye
clockwise to the stop.
Removing the towing eye X
Unscrew and remove the towing eye.
X Attach cover 001Ato the bumper and press
until it engages. 306
Towing and tow-startingBreakdown assistance

X
Place the towing eye in the stowage well
beneath the cargo compartment floor
(Y page 294) in the cargo compartment.
X Vehicles with the TIREFI Tkit: put back the
tire inflation compressor. Towing the vehicle with the front axle
raised
! The ignition must be switched off if the
vehicle is being towed with the fronta xle
raised .Otherwise, ESP ®
ma yintervene and
damage the brake system.
X Turn the SmartKe ytoposition 2in the
ignition lock.
X When the vehicl eisstationary, depress the
brake peda land kee pitdepressed.
X Shift the automatic transmission to
position P.
X Releas ethe brake pedal.
X Releas ethe electric parking brake.
X Switch off the automatic locking
(Y page 205).
X Switch on the hazar dwarning lamps
(Y page 107).
X Turn the SmartKe ytoposition 0in the
ignition lock and leav ethe SmartKe yinthe
ignition lock.
Observe the important safety note swhen
towing your vehicl ewitht he front axl eraised
( Y page 305). Towin
gavehicle with both axles on
th eg round
i In orde rtosignal achange of direction
when towing with the hazard warning lamps
switched on, use the combination switch as
usual.Int his case, only the indicator lamps
for the direction of travel flash. After
resettingt he combination switch, the
hazard warning lamp starts flashing again. The automatic transmission automatically
shifts to position
Pwhen you open the driver's
or front-passenger door or when you remove
the SmartKey from the ignition lock. In order
to ensure that the automatic transmission
stays in position Nwhen towing the vehicle,
you must observe the following points:
X Make sure that the vehicle is stationary.
X Turn the SmartKey to position 2in the
ignition lock.
X Depress and hold the brake pedal.
X Shift the automatic transmission to
position N.
X Leave the SmartKey in position 2in the
ignition lock.
X Release the brake pedal.
X Release the electric parking brake.
X Switch on the hazard warning lamps
(Y page 107).
It is important that you observe the safety
instructions when towing away your vehicle
(Y page 305). Transporting the vehicle
! You may only secure the vehicle by the
wheels, not by parts of the vehicle such as
axle or steering components. Otherwise,
the vehicle could be damaged.
X Turn the SmartKey to position 2in the
ignition lock.
X Shift the transmission to position N.
As soon as the vehicle has been loaded:
X Prevent the vehicle from rolling away by
applying the electric parking brake.
X Shift the transmission to position P.
X Turn the SmartKey to position 0in the
ignition lock and remove it.
X Secure the vehicle.
The towing eye can be used to pull the vehicle
onto atrailer or transporter for transporting
purposes. Towing and tow-starting
307Breakdown assistance Z

Tow-starting (emergency engine
starting)
! Vehicles with automatic transmission
must not be tow-started .You could
otherwise damage the automatic
transmission. Fuses
Important safety notes
G
WARNING
If you manipulate or bridge afaulty fuse or if
you replace it with afuse with ahigher
amperage, the electric cables could be
overloaded. This could result in afire. There
is ar isk of an accident and injury.
Always replace faulty fuses with the specified
new fuses having the correc tamperage.
! Only use fuses that have been approved
for Mercedes-Benz vehicles and which
have the correct fuse rating for the system
concerned. Only use fuses marked with an
"S". Otherwise, components or systems
could be damaged.
The fuses in yourv ehicle serve to close down
faulty circuits. If afuse blows ,all the
component sonthecircuit and their functions
stop operating.
Blown fuse smust be replace dwith fuses of
the same rating, which you can recognize by
the color and value. The fuse ratings are listed
in the fuse allocation chart.
If an ewly inserted fuse also blows, have the
cause traced and rectified at aqualified
specialist workshop, e.g. an authorized
Mercedes-Ben zCenter. Befor
echanging afuse
X Secure the vehicle against rolling away
(Y page 152).
X Switc hoff all electrical consumers.
X Turn the SmartKey to position 0in the
ignition lock and remove it (Y page 137).
All indicator lamps in the instrument cluster
must be off.
The fuses are located in various fuse boxes:
R Fuse box in the engin ecompartment on the
left-hand side of the vehicle, when viewed
in the direction of travel
R Fuse box in the front-passenger footwell
The fuse allocation chart is on the fuse box in
the front-passenger footwell (Y page 309). Fuse box in the engine compartment
G
WARNING
When the hood is open and the windshield
wipers are set in motion ,you can be injured
by the wiper linkage. There is arisk of injury.
Always switch off the windshield wipers and
the ignition before opening the hood.
! Make sure that no moisture can enter the
fuse box when the cover is open.
! When closing the cover, make sure that it
is lying correctly on the fuse box. Moisture
seeping in or dirt could otherwise impair
the operation of the fuses. 308
FusesBreakdown assistance