brake pads MERCEDES-BENZ B-CLASS SPORTS 2014 Owners Manual

Useful information
i This Operator's Manual describes all
models and all standard and optional
equipment of your vehicle available at the
time of publication of the Operator's
Manual. Country-specific differences are
possible. Please not ethat your vehicle may
not be equipped with all features
described. This also applies to safety-
related system sand functions.
i Read the information on qualified
specialist workshops: (Y page 25).Notes on breaking-in
anew vehicle Important safety notes
New and replaced brak epads and disc sonly
reac htheir optimum braking effect after
several hundred kilometers of driving.
Compensate for this by applyin ggreater force
to th ebrak epedal. Th
ef irst 1000 miles (1500 km)
The mor eyou look after th eengine when it is
new, th emores atisfied you will be with its
performanc einthefuture.
R You should therefore driv eatvarying
vehicle and engine speed sfor th efirst
1000 miles (1500 km).
R Avoid heavy loads, e.g .driving at full
throttle, during this period.
R Change gearing ood time, before the
tachometer needle is 001Bof the way to the
red area of the tachometer.
R Do not manually shift to alower gear to
brake the vehicle.
R If possible, do not depress the accelerator
pedal past the point of resistance
(kickdown).
R Ideally ,for the first 1000 miles (1500 km),
drive in program E. After 1,000 miles (1,500 km), you can
increase the engine spee
dgradually and bring
the vehicle to ful lspeed.
i You should also observe these notes on
breaking-in if the engine or parts of the
drive train on you rvehicle have been
replaced.
i Always observe the respective speed
limits. Driving
Important safet
ynotes G
WARNING
Objects in the driver's footwell can restrict the
pedal travel or obstruct adepressed pedal.
The operatin gand road safety of the vehicle
is jeopardized. There is arisk of an accident.
Make sure that all objects in the vehicle are
stowed correctly, and that they cannot enter
the driver's footwell. Install the floormats
securely and as specified in order to ensure
sufficien tclearanc efor the pedals. Do not use
loose floormats and do not place floormats on
top of one another. G
WARNING
Unsuitable footwear can hinde rcorrect usage
of the pedals, e.g.:
R shoes with thick soles
R shoes with high heels
R slippers
There is arisk of an accident.
Wear suitable footwear to ensure correct
usage of the pedals. G
WARNING
If you switch off the ignition while driving,
safety-relevant functions are only available
with limitations, or not at all. This could affect,
for example, the power steering and the brake
boosting effect .You will require considerably 136
DrivingDriving and parking

i
On long journeys at aconstant speed, e.g.
on the highway, only the bar for Constantwill change.
i The ECO displays ummaries the driving
characteristics from the start of the journey
to its completion. For this reason, the bars
change dynamically at the beginning of the
journey. On longer journeys, there are
fewer changes. For more dynamic changes,
carry out amanual reset.
Further information on the ECO display
(Y page 194). Braking
Important safety notes G
WARNING
If you shift down on aslippery road surface in
an attempt to increase the engine's braking
effect, the drive wheels could lose their grip.
There is an increased danger of skidding and
accidents.
Do not shift down for additional engine
braking on aslippery road surface.
Downhill gradients !
On long and steep gradients, you must
reduce the load on the brakes by shifting to
al ower gear in good time. This allows you
to take advantage of the engine's braking
effect. For this, you need to have selected
manual drive program M.This helps you to
avoid overheating the brakes and wearing
them out excessively.
When you take advantage of the engine's
braking effect,ad rive wheel may not turn
for some time, e.g. on aslippery road
surface. This could cause damage to the
drive train. This type of damage is not
covered by the Mercedes-Ben zwarranty.
i Briefl ydepressing th eaccelerato rpedal
on downhill gradient swhile the manual
drive program Mis temporarily activated:
the automatic transmission may switch to the last activ
eautomatic drive program E
or S.T he automatic transmission may shift
to ah igher gear. This can reduce the
engine's braking effect.
Heavy and light loads G
WARNING
If you rest your foot on the brake pedal while
driving, the braking system can overheat. This
increases the stopping distance and can even
cause the braking system to fail. There is a
risk of an accident.
Never use the brake pedal as afootrest .Never
depress the brake pedal and the accelerator
pedal at the same time.
! Depressing the brake pedal constantly
results in excessive and premature wear to
the brake pads.
If the brakes have been subjected to aheavy
load, do not stop the vehicle immediately.
Driv eonf oras hort while. This allows the
airflow to cool the brakes more quickly.
Wet roads If you have driven for
along time in heavy rain
without braking ,there may be adelayed
reaction from the brakes when braking for the
first time. This may also occur after the
vehicle has been washed or driven through
deep water.
You have to depress the brake pedal more
firmly. Maintain agreater distanc efrom the
vehicle in front.
After driving on awet road or having the
vehicle washed, brake firmly while paying
attention to the traffic conditions .This will
warm up the brake discs, thereby drying them
more quickly and protecting them against
corrosion.
Limited braking performance on salt-
treated roads If you drive on salted roads,
alayer of salt
residue may form on the brake discs and Driving tips
157Driving and parking Z

brake pads. This can result in
asignificantly
longer brakin gdistance.
R Brak eoccasionally to remov eany possible
salt residue. Make sure that you do not
endanger other road users when doing so.
R Carefully depress the brake pedal and the
beginning and end of ajourney.
R Maintain agreater distance to the vehicle
ahead.
Servicing the brakes !
If the red brake warning lamp lights up in
the instrument cluster and you hear a
warning ton ewhile the engin eisrunning,
the brake fluid level may be too low.
Observ eadditional warning messages in
the multifunction display.
The brake fluid level may be too low due to
brake pad wear or leaking brake lines.
Have the brake system checked
immediately. This work should be carried
out at aqualified specialist workshop.
! Afunction or performanc etest should
only be carried out on a2-axle
dynamometer. If yo uareplanning to have
the vehicl eteste dons uchad ynamometer,
contact an authorize dMercedes-Benz
Center to obtai nfurthe rinformatio nfirst.
Otherwise, yo ucould damage the drive
trai nort he brake system.
! As the ESP ®
system operates
automatically, the engine and the ignition
must be switched off (the SmartKe ymust
be in position 0or 1in the ignition lock) if:
R the electri cparking brak eistested on a
brake dynamometer (for amaximum of
ten seconds)
R the vehicle is towed with the front axle
raised.
Braking triggered automaticallybyE SP®
may seriouslyd amage the brake system.
All checks and maintenance work on the
brake system must be carried out at a qualified specialist workshop. Consult a
qualified specialist workshop to arrange this.
Have brake pads installed and brake fluid
replaced at
aqualified specialist workshop.
If the brake system has only been subject to
moderate loads, you should test the
functionality of your brakes at regular
intervals.
You can find adescription of Brake Assist
(BAS) on (Y page 64).
Mercedes-Benz recommends that you only
have brake pads/linings installed on your
vehicle which have been approved for
Mercedes-Benz vehicles or which correspond
to an equivalent quality standard. Brake
pads/linings which have not been approved
for Mercedes-Benz vehicles or which are not
of an equivalent quality could affect your
vehicle's operating safety.
Mercedes-Benz recommends that you only
use brake fluid that has been specially
approved for your vehicle by Mercedes-Benz,
or which corresponds to an equivalent quality
standard. Brake fluid which has not been
approved for Mercedes-Benz vehicles or
which is not of an equivalent quality could
affect your vehicle's operating safety.
Checking brake liningt hickness You can measure the break pad/lining
thickness using
atest gauge.C olor-coding
(green or red) on the test gauge allows you to
determin ewhether the brake pad/lining
thickness is still sufficient .The test gauge is
in the vehicle document wallet in the glove
box. 158
Driving tipsDriving and parking

Front wheel
Rear wheel
X
Bring the vehicle and wheels into asuitable
positio nsothat you can attach test gauge
001E.
X Secure the vehicle against rolling away
(Y page 152).
X Move the selector lever to position P.
X Switch off the engine.
X Place test gauge 001Ebetween the wheel's
spokes on brake pad/lining 0023.X
Hold test gauge 001Evertically on brake
disc 001Aand slide measuring pin 0010onto
brake disc 001A.
X Check which color field 0021the arrow on
measuring pin 0010is pointin gto.
Green:t he brake pad/lining thickness is
sufficient.
Red:t he brake pad/lining thickness is not
sufficient. Have the brake pads/lining
checked at aqualified specialist workshop.
i To avoid an inaccurate measurement:
R make sure you position the wheels
suitably
R do not put the measuring pin on arecess
in the brake disc Driving on wet roads
Hydroplaning If water has accumulated to
acertain depth
on the road surface, there is adanger of
hydroplaning occurring, even if:
R you drive at low speeds.
R the tires have adequate tread depth.
For this reason, in the event of heavy rain or
in conditionsinw hich hydroplaning may
occur, you must drive in the following
manner:
R lower your speed.
R avoid ruts.
R brake carefully.
Driving on flooded roads !
Do not drive through flooded areas.
Check the depth of any water before driving
through it. Drive slowly through standing
water. Otherwise, water may enter the
vehicle interior or the engine compartment.
This can damage the electronic
components in the engine or the automatic
transmission. Water can also be drawn in
by the engine's air suction nozzles and this
can cause engine damage. Driving tips
159Driving and parking Z

Display messages Possible causes/consequences and
000B Solutions
0004(USA
only)
0001(Canada
only)
Check Brake Fluid Level There is no
tenough brake fluid in the brake fluid reservoir.
In addition, the 0004(USA only)/0001 (Canada only) warning
lamp lights up in the instrument cluster and awarning tone
sounds.
G WARNING
The braking effect ma ybeimpaired.
There is ariskofana ccident.
X Pull ove rand stop the vehicl esafelyass oonasp ossible,p aying
attention to road and traffic conditions. Do not continue driving
under any circumstances.
X Secure the vehicle against rolling away( Ypage 152).
X Consult aqualified specialist workshop.
X Do not add brake fluid. This does not correct the malfunction. 0002
Check Brake Pad
Wear The brake pads/linings have reached their wear limit.
X
Visit aqualified specialist workshop. 0015
mbrace Inoperative One or more main features of the mbrace system are
malfunctioning.
X
Have the mbrace system checked immediately at aqualified
specialist workshop. 214
Display messagesOn-board computer and displays

Hiding
aservice message X
Pres sthe 000C or0002 button on the
steerin gwheel.
Displaying service messages X
Switch on th eignition.
X Pres sthe 000A or0004 button to selec tthe
Serv. menu.
X Press the 0006or0005 button to select the
ASSYST PLUS submenu and confirm by
pressing the 000Cbutton.
The service due date appears in the
multifunction display.
Information about Service Resetting the ASSYST PLUS service
interval display
!
If the ASSYST PLUS service interval
displayh as been inadvertently reset, this
settingc an be corrected at aqualified
specialist workshop.
Have service work carried out as described
in the MaintenanceB ooklet. This may
otherwise lead to increased wear and
damage to the major assemblies or the
vehicle.
Aq ualified specialist workshop, e.g. an
authorize dMercedes-Ben zCenter, will reset
the ASSYST PLUS servic einterval display
after the servic ework has been carried out.
You can also obtain further information on
maintenanc ework, for example.
Special service requirements
The specified maintenanc einterval takes only
the normal operation of the vehicle into
account. Under arduous operatin gconditions
or increased load on the vehicle,
maintenanc ework must be carried out more
frequently, for example:
R regular city driving with frequent
intermediate stops
R if the vehicle is primarily used to travel
short distances R
use in mountainous terrain or on poor road
surfaces
R if the engin eisoften left idling for long
periods
Under these or similar conditions ,have, for
example, the air filter, engin eoil and oil filter
replaced or changed more frequently. Under
arduous operatin gconditions ,the tires must
be checked more often .Further information
can be obtained at aqualified specialist
workshop, e.g. an authorized Mercedes-Benz
Center.
Driving abroad
An extensive Mercedes-BenzS ervice network
is also available in other countries. You can
obtain further information from any
authorized Mercedes-BenzC enter. Care
General notes
H
Environmental note
Dispose of empty packagin gand cleaning
cloth sinane nvironmentally responsible
manner.
! For cleanin gyour vehicle, do not use any
of the following:
R dry, rough or hard cloths
R abrasive cleanin gagents
R solvents
R cleanin gagents containin gsolvents
Do not scrub.
Do not touch the surfaces or protective
films with hard objects, e.g. aring or ice
scraper. You could otherwise scratch or
damage the surfaces and protective film.
! Do not park the vehicle for an extended
period straight after cleanin git, particularly
after having cleaned the wheels with wheel
cleaner. Wheel cleaners could cause
increased corrosion of the brake discs and
brake pads/linings. For this reason, you Care
285Maintenance and care Z

should drive for
afew minutes after
cleaning. Braking heats the brake discs and
the brake pads/linings, thus drying them.
The vehicle can then be parked.
Regular care of your vehicle is acondition for
retaining the quality in the long term.
Use care products and cleaning agents
recommended and approved by Mercedes-
Benz. Exterior care
Automatic car wash G
WARNING
Braking efficiency is reduced after washing
the vehicle. There is arisk of an accident.
After the vehicle has been washed, brake
carefully while paying attention to the traffic
conditions until full braking power is restored.
! If DISTRONIC PLUS or the HOLD function
is activated, the vehicle brakes
automaticallyinc ertain situations. To
prevent damage to the vehicle, deactivate
DISTRONIC PLUS and the HOLD function in
the following or other similars ituations:
R when towin gthe vehicle
R in the car wash
! Neve rclean your vehicle in aTouchless
Automatic Car Wash as these use special
cleaning agents. These cleaning agent scan
damage the paintwork or plastic parts.
! Make sure that the automatic
transmission is in position Nwhen washing
your vehicle in atow-through car wash. The
vehicle could be damaged if the
transmission is in another position.
! Make sure that: R
the side windows and the slidin gsunroof
are fully closed.
R the ventilation/heatin gisswitched off
(th eO FF button has been pressed/the
airflow control is set to position 0).
R the windshield wiper switc hisinposition
0.
Otherwise, the vehicle might be damaged.
You can wash the vehicle in an automatic car
wash fro mthe very start.
If the vehicle is very dirty, pre-wash it before
cleaning it in an automatic car wash.
After using an automatic car wash, wipe off
wax fro mthe windshield and the wiper
blades. This will prevent smears and reduce
wiping noises caused by residue on the
windshield.
Washing by hand In some countries, washing by hand is only
allowed at wash bays that are specially
designed for this purpose. Observe the legal
requirements in all countries concerned.
X
Do not use hot water and do not wash the
vehicle in direct sunlight.
X Use asoft sponge to clean.
X Use amild cleaning agent, such as acar
shampoo approved by Mercedes-Benz.
X Thoroughly hose down the vehicle with a
gentle jet of water.
X Do not point the water jet directly towards
the air inlet.
X Use plenty of water and rinse out the
sponge frequently.
X Rinse the vehicle with clean water and dry
thoroughly with achamois.
X Do not let the cleaning agent dry on the
paintwork.
When using the vehicle in winter, remove all
traces of road salt deposits carefully and as
soon as possible. 286
CareMaintenance and care

Powerw
ashers G
WARNING
The water jet from acircular jet nozzle (dirt
blasters) can cause invisibl eexterior damage
to the tire sorchassiscomponents.
Components damaged in this wa ymay fail
unexpectedly .There is arisk of an accident.
Do not use power washers with circular jet
nozzles to clean the vehicle. Have damaged
tires or chassis components replaced
immediately.
! Always maintain adistance of at least
11.8 in (30 cm) between the vehicle and the
power washer nozzle. Information about
the correct distance is available from the
equipment manufacturer.
Move the power washer nozzle around
when cleaning your vehicle.
Do not aim directly at any of the following:
R tires
R door gaps, roof gaps, joints, etc.
R electrical components
R battery
R connectors
R lights
R seals
R trim
R ventilation slots
Damaged seals or electrical components
can lead to leaks or failures.
Cleaningt he wheels !
Do not use acidic wheel cleaning products
to remove brake dust. This could damage
wheel bolts and brake components.
! Do not park the vehicle for an extended
period straight after cleaning it, particularly
after having cleaned the wheels with wheel
cleaner. Wheel cleaners could cause
increased corrosion of the brake discs and
brake pads/linings. For this reason, you
should drive for afew minutes after cleaning. Braking heats the brake discs and
the brake pads/linings, thus drying them.
The vehicle can then be parked.
Cleaningt he paintwork !
Do not affix:
R stickers
R films
R magnetic plates or similar items
to painted surfaces. You could otherwise
damage the paintwork.
X Remove dirt immediately,w here possible,
while avoiding rubbing too hard.
X Soak insect remains with insect remover
and rinse off the treated areas afterwards.
X Soak bird droppings with water and rinse
off the treated areas afterwards.
X Remove coolant, brake fluid, tree resin,
oils, fuels and greases by rubbing gently
with acloth soaked in petroleum ether or
lighter fluid.
X Use tar remover to remove tar stains.
X Use silicone remover to remove wax.
X Use asuitable touch-up stick,e .g. MB
Touch-Up Stick, to repair slight damage to
the paintwork quickly and provisionally.
The following cannot always be completely
repaired:
R scratches
R corrosive deposits
R areas affected by corrosion
R damage caused by inadequate care
In such cases, visit aqualified specialist
workshop.
If water no longer forms "beads" on the paint
surface, use the paint care products
recommended and approved by Mercedes-
Benz.T his is the case approximately every
three to five months, depending on the
climate conditionsa nd the care product used.
If the dirt has penetrated the paint surface or
if the paintwork has become dull, then the
paintwork should be cleaned. For cleaning, Care
287Maintenance and care Z