brake pads MERCEDES-BENZ SL ROADSTER 2008 Owners Manual

Driving safet
ysystems 58 G
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If there is afault in the powe rsuppl yort he
vehicle' selectrica lsystem, the SBC TM
brake syste menters emergency mode
becaus eitrequires electrica lpower to
operate. Greater braking force will the nbe
required and the brake peda ltravel and
braking distance will be longer. If neces-
sary ,depress the brake peda lwithm axi-
mu mf orce.
Th eS BCTM
brake syste misautomaticall yacti-
vated if you:
R unlock the vehicl eusing the key or the KEY-
LESS GO *system
R open the driver's or front-passenge rdoor
R switch on the ignition
R press the KEYLESS GO button* on the
selector lever once on vehicles with KEY-
LESS GO
R depress the brake pedal
R release the parking brake
i If yo uactivate the SBC TM
brake system
with the brake pedal, peda lresistanc eis
less tha nnormal the first tim eyou depress
the brake. There is also mor epedal travel tha
nnormal .Pedal travel returns to normal
when yo urelease the brake pedal. Yo umay
fee lthe brake peda lpulsa te when you
release it, and hear asound .Thiss ound,
which is produced by the SBC TM
pump,
cease safter as hort time. G
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kofi njury
If the SBC TM
brake syste misnot deactiva-
ted befor emaintenanc ework—e specially
brake pad/lining replacement —thisc ould
resul tininjury .Ifthe syste misactive, it
carries ou tself- tests, automaticall ybuild-
ing up high pressures in the brake system
for tes tpurposes. Th ebrake calliper pis-
tons ar eforced out, which ca nresul tin
crush injuries .Brake flui dmayescape,
which ca nresul tina cidb urns.
Th eS BCTM
brake syste mmustbed eacti-
vated befor emaintenanc eworkisc arried
out. Yo ucan obtai ninformation on ho wto
deactivate the SBC TM
brake syste matany
Mercedes-Benz Service Centre. G
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kofi njury
Onl yhavet he brake pads/lining sreplaced
and other work on the SBC TM
brake system
carried ou tataqualifie dspecialis twork-
shop. Consult aqualified specialis twork- sho
pwhich ha sthe necessary specialist
knowledg eand tools to carry ou tthe work
required.
Mercedes-Benz recommend sthaty ou use
aM ercedes-Benz Service Centre for this
purpose .Inparticular, work relevant to
safety or on safety-related systems must be
carried ou tataqualifie dspecialis twork-
shop.
Th eS BCTM
brake syste mbrake boos tisa uto-
maticall ydeact ivated:
R after approximately 20 second sifyoulock
the vehicl efromt he outside
R after approximately two minute sifyouturn
the key to position 0in the ignition lock or
remove it fro mthe ignition lock
Tips fo rdrivin gwithS BCTM R
Yo us houl ddownshift ( 1st,2nd or 3rd gear)
when driving on long and steep downhill
gradients .Thisp revents the brakes from
overheating or wearing too quickly.
R Continu edriving for ashort tim eafter sub-
jecting the brakes to aheavy load.This
allows the airflow to coo lthe brakes more
quickly. Safety
*optional
230_AKB; 5; 4, en-GB
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Anti-thef
tsyste ms 59G
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Make sure tha tyou do not endanger
other roa dusers when applying the
brakes.
R Yo us hould applythe brakes firml yfrom
tim etot imeatah ighv ehicle speedifthe
vehicle' sbrake syste mhasnot been sub-
jected to high load sfor alon gp erio dof
time. This improve sthe gri pofthe brake
pads/linings.
R Yo us hould brakefirml ya fter driving on a
we tors now-covere droads urface before
stopping the engine .The brak ediscs dr yas
the yarewarme dup,thu spreve nting cor-
rosion.
R For safety reasons ,Mercedes-Benz recom-
mends tha tyou onlyusecomponents ,e.g.
brak epads/li nings,which have been spe-
cially approve dbyMercedes-Benz for your
vehicle. Brake pads/linings whic hhaven ot
been approve dfor Mercedes-Benz could
affect your vehicle' sopera ting safety. Anti-theft systems
Immobiliser
Th eimm obiliser prevents your vehicl efrom
being starte dwithout the correct key.
Activating the immobiliser X
With the key: removethe key fro mthe
ignition lock.
X With KEYLES SGO*: pres sthe KEYLESS
GO button on the selector lever.
Th ee ngine switche soff.
Deactivating th eimmob iliser X
Wit hthe key: turn th ekeyto position 2in
th ei gnition lock.
X Wit hKEYLESS GO*: press theKEYLESS
GO butto nontheselecto rlever twic ewith-
out depressin gthe brake.
i The immobilise risalways deactivated
when you start th eengine. ATA (anti-thef
talarm system)
Av isual and audible alar mistriggere difthe
alar msystem is primed and you open:
R ad oor
R ad ooru sin gthe emergency ke yelement
R theb ootlid
R theb onnet
R theg love compartment
R thes towag espac eunder th earmrest
R as towag ecom partmen tintherear
The alar misnotswitched of fevenify ou close
an ope ndoora gain. 1
Indicator lamp
X To prime: lockthe vehicle usin gthe key.
On vehicles wit hKEYLESS GO* ,the locking Safety
*o ptional
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Driving
tips 191
Downhill gradients On long and steep downhil
lgradients ,espe-
ciall yift he vehicl eisladen ,you must select
shift range 1,2or 3in good time.
i This also applie sifyouhave activated
cruis econtrol ,Speedtroni corDistronic*.
This uses the braking effect of the engine and
yo uw illn ot have to brake to such an extent
to maintain the same speed. This relieves the
load on the brake syste mand prevents the
brakes fro moverheating and wearing too
quickly. If yo uneeda ddit ional braking,
depress the brake peda lrepeatedly rather
tha ncontinuously.
Heavy and light loads If the brakes have been subjected to
aheavy
load ,don ot sto pthe vehicl eimm ediately, but
drive on for ashort while. This allows the air-
flow to coo lthe brakes mor equickly. G
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Never depress the brake peda lcontinu-
ousl ywhile the vehicl eisinmotion, e.g.
never caus ethe brakes to ru bbyapplying
constant slight peda lpressure. This causes
the brake syste mtooverheat, increases the braking distance and ca
nleadtot he
brakes failing completely.
If the brakes have been used onl ymoderately,
yo us houl doccasionall ytesttheir effective-
ness. To do this, brake mor efirml yfroma
higher speed. This improves the gri pofthe
brakes.
We troads If driving in heav
yrainf or ap rolonge dperiod
of tim ewithout braking ,there ma ybea
delaye dreactio nfromt he brakes ,whenb rak-
ing for the first time. Yo umustb rake harder.
Yo um usttherefore maintain agreate rdis-
tanc efromt he vehicl einfront.
Brake firml yafter driving on awetroad. This
wa ythe brake discs will becom ewarm, drying
mor equickly, which will protect the magain st
corrosion.
Limite dbrakin gperformanc eonsalted
roads G
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Th elayer of salt on the brake discs and the
brake pads/lining smaycaus ead elayin
the braking effect, resulting in asignifi- cantly longe
rbraking distance, which could
lead to an accident.
To avoi dthisd anger, yo ushould:
R occasionall ybrake carefully ,without put-
ting other roa dusers at risk, when you
ar ed riving on salte droads .Thish elps to
remove any salt tha tmayhave started to
buil dupont he brake discs and the brake
pads/linings.
R maintain agreate rdistance to the vehicle
ahea dand drive with particula rcare.
R carefully appl ythe brakes at the end of a
tri pa nd immediatel yafter commencing a
new trip, so tha tsaltr esidue sare
remove dfromt he brake disc.
New brak epads/linings For safety reasons, Mercedes-Benz recom-
mends tha
tyou onl yhaveb rake pads/linings
fitted to your vehicl etha th aveb eena pproved
for Mercedes-Benz vehicles or which corre-
spond to an equivalent quality standard.
Brake pads/lining swhich have not been
approved for Mercedes-Benz or which ar enot
of an equivalent quality could affec tyou rvehi-
cle's operating safety. Operation
*o ptional
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Driving
tips 192 G
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Ne wb rake pads/lining sonlyr each their
optimum braking effect after several hun-
dre dkilometres of driving. Before thi sopti-
mu mb raking effect is reached, yo ushould
compensate for the reduced braking effect
by applying greate rpressure when braking.
This also applie safter the brake discs or the
brake pads/lining shaveb eenr eplaced.
High-performanc ebrak esystemf or
AM Gvehicles Th
eh igh- performance brake syste mis
designe dfor heav yloads .Braking ca nthere-
for ec ause noises. This will depend on:
R speed
R braking force
R environmental conditions ,suc hast emper-
ature and humidity
Th ew earofi ndividua lcomponents of the
brake system, such as the brake pads/linings
or brake discs ,depen ds on the individua ldriv-
ing style and operating conditions.
Becaus eofthis, it is impossibl etostate a
mileag ethatw illbev alidunder al lcircum-
stances .Anaggressive driving style will lead
to high wear. Tyre grip
G
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Whereas the vehicl ecan be full ycontrolled
at ac ertai nspeed on dry roads ,you must
reduc eyours peed on we toricy roads to
achieve the same roa dsafety .Otherwise
yo uc ould caus eanaccident.
Pa yp articula rattentio ntothe roa dcondi-
tions at temperatures around freezing
point.
If ice ha sformed on the roa dsurface (e.g.
fro mf og), alight film of water rapidl yforms
on the ice when yo ubrake, considerably
reducing tyr egrip. Drive with particular
care in such weather conditions. Driving on we
troads
If water ha saccumulate dtoacertaindepth
on the roa dsurface, there is adangerofa qua-
planing occurring, eve nif:
R yo ud rive at lo wspeeds
R the tyres have adequate trea ddepth
For thi sreason, do not drive in tyr eruts, and
brake carefully. Driving on flooded roads
If yo uhavetod rive on stretche sofroadon
which water ha scollected ,pleas ebearin
mind that:
R the maximum permitted still water depth is
12 cm
R yo us houl ddrive no faste rtha natw alking
pace
! Bea rinm indt hatv ehicles travelling in
front or in the opposite directio ncreate
waves .Thism aycaus ethe maximum per-
missibl ewater depth to be exceeded.
Yo um usto bser ve these notes, otherwise
damage ma yoccu rtot he engine ,electrics
and transmission. Operation
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Care
195H
Environmental note
Dispose of empty packaging ,cleaning
cloth sand polishin gwads in an environ-
mentally responsible manner.
! Do no taffix:
R stickers
R films
R magnetic plates or similar items
to painte dsurfaces, otherwise you could
damag ethe paintwork. Vehicle care
! Do no tpark th evehicl efor alon gp eriod
of time directly after cleaning ,especially if
th ew heels have jus tbeen cleane dwitha
whee lcleaner. Whee lcleaners could cause
rapi dcorro sionoft hebrak ediscsa nd
brak epads/linings. Afte rcleaning ,park
th ev ehicl ewhen it is at normal operating
temperature. Automati
ccar wash G
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The vehicl eisbraked when SBC ®
Hold is
activated. Therefore, deactivat eSBC®
Hold
before th evehicl eisw ashedinana uto-
matic car wash.
You can wash th evehicl einana utomatic car
wash from th everys tart.
! It is preferable to use car washe swhich
do no tuse high-pressur ecleaners. In car
washe sthatu se high water pressures,
there is adanger that water may leak into
th ev ehicle.
! Do no tuse atouch-free automatic car
wash that uses chemical agents to wash
th ev ehicle.
If th evehicl eisv eryd irty, prewash it before
cleaning it in an automatic car wash.
! Mak esuret hatthe automatic car wash is
suitable for th esizeoft hevehicle. Fold in
th ee xter iorm irror sbefore th evehicl eis
washed. Ther eisotherwise ariskofd am-
age to th eexter iorm irrors.
! Mak esuret ha tthe side windows are com-
pletely closed, that th eventilation/heater blowe
risfully turne doff and that th ewind-
scree nwiper switch is set to 0.Otherwise,
th er ain sensor may be activated, inadver-
tently triggerin gwiper operation .This could
caus edamag etothevehicle.
Afte rusin gana utomatic car wash, wipe off
wax from th ewindscree nand th ewiper
blades .This will preven tsmears and reduce
wipin gnoises caused by residue on th ewind-
screen.
High-pressur ecleaners G
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Do no tuse high-pressure cleaners wit hcir-
cular-jet nozzles (dir tgrinders )toc lean
your vehicl eor-especially -the tyres. You
could otherwise damag ethe tyres and
caus eana ccident.
! Observ ethe instruction sissue dbyt he
equipmen tmanufacturer concerning the
distanc etobem aintainedbetween the
nozzle of th ehigh-pressure cleane rand the
vehicl e(at least 30 cm).
Mov ethe high-pressure cleane rnozzle
aroun dwhen cleaning your vehicle.
Do no taim directly at any of th efollowing: Operation
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Displa
ymessages 216 Display messages Possible cause/consequence Possible solution
# Battery/Alternator
Stop car Th
eb atter yisf aulty.
Th eS BCTM
brak esystemr equire selectri-
ca lp ower ,therefor eits operationa lfun c-
tionality is now limited.
Yo un eedtou seconsiderably mor eforce
to brake. Th ebrake pedaltrave land the
braking distance will increase. If neces-
sary ,depress the brak epedal with maxi-
mu mf orce. X
Pull ove rass oonasitiss afetodos o.
X Do not continu edrivin gunder anyc ircumstan-
ces.
X Consult the nearest qualifie dspecialis twork-
shop. 2 Brak
ewear Th
eb rake pads/linings have reached
their wear limit. X
Have the brak epads/li nings replaced as soon
as possible at aqualified specialis tworkshop. 3 Chec
kbrake fluid
level G
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Ther eisi nsufficient brak efluid in the
brak efluid reservoir. X
Pull ove rass oonasitiss afetodos o.
X Do not continu edrivin gunder anyc ircumstan-
ces.
X Consult the nearest qualifie dspecialis twork-
shop.
X Do not top up the brak efluid. This will not rec-
tif yt he malfunction. ! Releas
eparking
brake Yo
ua redriving with the parking brake
applied. X
Releas ethe parking brake. Practical advi
ce
230_AKB; 5; 4, en-GB
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