MERCEDES-BENZ SL ROADSTER 2008 Owners Manual

Battery
278
Disconnecting the consumer battery X
Close the boot separator.
X Remov ethe inne rfloor fro mthe boot.
X Remov ethe negative termina lclamp from
the battery.
X Remov ethe cove rfromt he positive termi-
nal clamp.
X Remov ethe positive termina lclamp from
the battery. Removing the battery
Starte rbattery X
Fol dthe ba rupa nd remove the battery.
Consumer battery X
Loosen the bolt which holds the battery in
place.
X Take ou tthe support and the battery holder
and remove the battery. Charging and fitting the battery
G
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Onl ycharge the battery in awell-ventilated
area .Ast he battery is being charged, gases
can escap eand generate minor explosions.
Thi sm ayinjure yo uand othe rpersons or
cause damage to the paintwork or aci dcor-
rosio nont he vehicle.
Yo uc an obtai ninformatio nabout battery
chargers which allo wthe battery to be
charge dwhens till installe dfromaq ualified
specialis tworkshop ,e.g.aM ercedes-Benz
Service Centre. G
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There is ariskofa cidb urns during the
charging proces sdue to the gases which
escap efromt he battery .Donot lean over
the battery during the charging process. G
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Battery aci discaustic. Avoi dcontact with
the skin, eyes or clothing.
! Onlycharge the installe dbattery with a
battery charge rwhich ha sbeent este dand
approved by Mercedes-Benz. These battery
chargers allo wthe battery to be charged whil
eitiss till installed. Otherwise, the vehi-
cle's electronic system ma ybedamaged.
! Onlyusebattery chargers with amaxi-
mu mc harging voltag eof14.8 V.
X Charge the battery .Observe the note sin
the operating instructions for your battery
charger.
X Refit the charge dbattery.
To do this, follo wthe step sdescribe din
"Removing the battery "(Ypage 278) in
revers eorder. Reconnecting the battery
! Alway sreconnect the battery in the
sequence describe dbelow .Never swap the
termina lclamps .You mayotherwis edam-
ag et he vehicl eelectronics.
X Switch off al lelectrical consumers.
X Connect the positive termina lclamp and
secur ethe cover.
X Connect the negative termina lclamp.
X Connect the breather hose. Make sure that
ac ellc ap is fitte disfittedont he side. Practical advice
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Battery
279
i
If the battery powe rsuppl yhasbeen inter-
rupte d(e.g. if it ha sbeenr econnected) ,you
must carry ou tthe following tasks:
R Set the time (see the COMAND operating
instructions)
R Reset the functio nfor folding the exterior
mirror sin/out automatically* by folding
the mirror soutonce ( Ypage 80). Jump-starting
If your vehicle's battery is discharged, the
engine can be jump-started fro manother
vehicl eorfromane xternalbattery using jump
leads.
Observe the following points:
R Jump-starting ma yonlybep erforme dwhen
the engine and catalytic converter ar ecold.
R Do not start the engine if the battery is fro-
zen. Let the battery tha wfirst.
R Jump-starting ma yonlybep erforme dfrom
batteries with anominal voltag eof12V.
R Onl yusejum pleads which ar eprotected
against polarity reversal and which have a
sufficient cross-sectio nand insulate dter-
minal clamps. i
Jump lead swhich ar eprotecte dagain st
polarity reversal and furthe rinformation
abou tjump-starting can be obtained from
any Mercedes-Benz Service Centre.
! Avoi drepeated and lengthy starting
attempts .Onlyu sethe jump-starting pro-
cedur efor the battery in the engine com-
partment.
Do not us earapid- charging devic etostart
the engine. G
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There is ariskofa cidb urns when jump-
starting avehicl edueto the gases which
escap efromt he battery .Donot lean over
the battery whil ethe engine is being jump-
started. G
Ris
kofe xplosion
Gase sescapin gfromt he battery during
jump-starting ma ycause minor explosions.
Avoi dcreating sparks. Kee pnake dflames
away fro mthe battery ,and do not smoke.
Compl ywiths afety precautions and take
protective measures when handling batter-
ies. Yo uwillf ind thes eunder "Battery "in
the index. X
Make sure tha tthe two vehicles do not
touch.
X Depres sthe parking brake.
X Mov ethe selector lever to P.
X Switch off al lelectrical consumers. 1
Positiv etermina lofdonor battery
2 Positiv etermina lonyourv ehicle
3 Negativ etermina lofdonor battery
4 Negativ etermina lonyourv ehicle
X Connect positiv eterminal 2onyour vehi-
cle to positiv eterminal 1of the donor
batter yusing the jump lead ,begin ning with
your ownb atter y.
X Start the engine of the donor vehicle and
runitati dlingspeed. Pra
ctical advice
*o ptional
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Towin
gand tow-starting 280
X
Connect negative terminal 3of the donor
battery to negative terminal 4of your
vehicle' sbattery using the jum plead, con-
necting the jum pleadtot he donor battery
first.
X Star tthe engine.
X Electrical consumers can be switched on
again. Do not switch the lights on, however,
as thi swillo verloa dthe battery.
X Remov ethe jum pleadf rome arth
point 4and negative terminal 3first,
the nfromp ositivet erminals 1and 2,
each tim edisconnecting fro mthe battery
on your ow nvehicl efirst.
X Have the battery checked at aqualified
specialis tworkshop ,e.g.aM ercedes-Benz
Service Centre. Towin
gand tow-starting Points to remember
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If yo utow the vehicle, yo umustu se arigid
towing ba rif:
R the engine is not running
R there is abrake syste mmalfunction
R the voltag esuppl yort he vehicle' selec-
trica lsystemisd amaged
Th ee lectric powe rsteering and the brake
force booster do not work when the engine
is not running .Greate rbraking force will
the nberequired and the brake peda ltravel
will be longer. If necessary ,depress the
brake peda lwithm aximum force.
Do not tow the vehicl eifthe key cannot be
turned in the ignition lock. If thi sisthe case,
the steering is locked and the vehicl ecan-
not be steered.
If yo utow or tow-start anothe rvehicle, its
weight must not exceed the maximum per-
missibl egross vehicl eweigh tofy ourv ehi-
cle. G
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Th eS BC®
brake syste mrequires electrical
power. Th eSBC®
brake syste menters
emergency mod eifthere ar efaults in the
powe rsuppl yort he vehicle' selectrica lsys-
tem. 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 ev ehicl eisb raked if SBC ®
HOL Disa cti-
vated .The refore, deactivate SBC ®
HOL Dif
the vehicl eistobet owed.
If yo utow or tow-start anothe rvehicle, its
weight must not exceed the maximum per-
missibl egross vehicl eweigh tofy ourv ehi-
cle.
It is better to have the vehicl etransported
tha ntoh aveitt owed.
When towing ,obser ve the lega lrequirements
in al lcountries concerned.
! When towing ,pulla wa yslowl yand with-
ou tjerking. If the tractiv epower is too high,
the vehicles could be damaged. Do not use
the towing ey efor recovery. Practical advice
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Towin
gand tow-starting 281
!
Youm aytow the vehicl efor am aximum
of 50 km. Atowing spee dof50k m/h must
not be exceeded.
With towing distances ove r50km, the
entire vehicl eneeds to be lifted up and
transported.
! Onlysecur ethe tow cable or towing bar
to the towing eyes .You mayotherwise
damage the vehicle.
R Vehicle swithana utomatic transmission
must not be tow-started.
R If the engine does not start, try jum pstart-
ing (Y page 279).
R If it is not possibl etojump-star tthe vehicle,
have it towed to the neares tqualified spe-
cialist workshop ,e.g.aM ercedes-Benz
Service Centre.
R If the vehicl ehassuffered transmission
damage ,onlyt ow it with the propeller shaft
disconnected.
R Th es elect or lever must be in position Non
vehicles with automatic transmission.
R If yo uaretowing the vehicl eoverac onsid-
erabl edistance, thi smayonl ybed onew ith
the rea raxler aised. R
Th eign ition must be switched off if yo uare
towing the vehicl ewitht he front/rear axle
raised .Interventio nbyESP®
could other-
wise damage the brake system.
R Before towing the vehicle, make sure that
the battery is connected and charged. Oth-
erwise:
-Yo uc ann ot switch on the ignition
- Yo uc ann ot mov ethe selector lever to N
- Yo uh avenos upport when braking
i Switch off the automatic locking feature
befor ethe vehicl eistowed (Y page 120).
Yo uc ould otherwis ebelocked ou twhen
pushing or towing the vehicle. Fittin
gthe towin geye
Opening the front cover Th
em ounting sfor the removabl etowing eyes
ar el ocat ed in the bumpers. They ar eloc ated
at the front and rea runder the covers on the
right-hand side of the vehicl ewhenv iewed in
the directio noftravel. 1
Cover
X Press the uppe rsectio nofc over1back
in the directio nofthe arrow whil eatthe
same tim epulling the bottom forwards.
X Take cover 1off the opening. Practical advice
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Towin
gand tow-starting 282
Opening the rea
rcover 1
Cover
X Use asuitabl eobject such as ascrewdriver
and insert it in the notch on the left or right
to lever off cover 1.
X Fol dc over 1down.
X Take cover 1off the opening.
Securin gthe towin geye X
Take the towing ey eand the whee lwrench
fro mt he vehicl etoolkit ( Ypage 200).
X Scre wint he towing ey eclockwise to the
stop.
X Insert the whee lwrench handl einto the
towing ey eand tighten. Towin
gthe vehicle
! Youm aytow the vehicl efor am aximum
of 50 km. Atowing spee dof50k m/h must
not be exceeded.
With towing distances ove r50km, the
entire vehicl eneeds to be lifted up and
transported.
! Thee ngine must be switched off (ke yin
ignition lock in position 0or position 1)if
the vehicl eisbeing towed with the rea raxle
raised or if the parking brake is being tested
on adynamometer. Interventio nbyESP®
could otherwis edamag ethe brake system.
X Turn the key to position 2in the ignition
lock.
X Move the selector lever to N. Removing the towin
geye
X Take the whee lwrench fro mthe vehicle
too lkit ( Ypage 200).
X Insert the whee lwrench handl einto the
towing ey eand tur nitanti-clockwise.
X Unscrew the towing eye.
X Replac ethe cover and press it unti lit
engages.
X Retur nthe towing ey eand the wheel
wrench to the vehicl etoolkit. Transporting the vehicle
Th et owing eyes ca nbeusedtop ullt he vehi-
cle onto atrailer or transporte rfor transport-
ing purposes.
! Onlylas ht he vehicl edownbyt he wheels
or whee lrim s, not by parts of the vehicle
such as axl eorsteering components .The
vehicl ecould otherwis ebedamaged.
X Turn the key to position 2in the ignition
lock.
X Move the selector lever to N.Practical advice
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Fuses
283Fuses
Notes on changin
gfuses
The fuses in your vehicl eserve to close down
fault ycircuits .Ifafuseb lows ,all th ecom po-
nent sont hecircui tand their function swill
fail.
Blown fuses mus tbereplaced wit hfuses of
th es am erating, whic hyou can recognise by
th ec olour and value .The fus eratings are lis-
te dint hefuseallocation chart .AMercedes-
Benz Service Centr ewill be happ ytoa dvise
you. G
Risk of fire
Only use fuses that hav ebeen approve dfor
Mercedes-Ben zvehicles and whic hhave
th ec orrect amperag efor thes ystem con-
cerned. Do no tattemp ttorepair or bridge
fault yfuses. Acircui toverload could other-
wise start afire. Hav ethe caus etrace da nd
rectifie dataq ualified specialist workshop,
e.g. aMercedes-Ben zServi ce Centre.
If th enewly inserte dfusea lso blows ,havet he
caus etrace da nd rectifie dataqualified spe-
cialist workshop ,e.g.a Mercedes-Benz
Service Centre. !
Only use fuses that hav ebeen approved
fo rM ercedes-Ben zvehicles and which
hav ethe correc tfus er atin gfor thes ystem
concerned. Otherwise ,com ponent sorsys-
tems could be damaged. G
Risk of accident
The SBC TM
brak esystem require sanelec-
trica lpowe rsupply. If there is adisruption
to th epowe rsupply or amalfunction in the
vehicle's on-boar delectronics ,the SBC TM
brak esystem goe sintoe mergenc yopera-
tion mode. In this cas eyou will need to
press th ebrak eharder .Braking distances
and brak epedal travel also increase .You
may hav etodepress th ebrak epedal with
maximum force.
The fuses are locate dinthemain fus ebox in
th ee nginec om partmen tontheleft-han dside
when viewed in th edirection of travel.
Fus eallocation chart The "Relay and fus
einformation sheet"is
locate dwitht he vehicl etoolkit
( Y page 200) in th estowage well under the
boo tfloor (Y page 161). Befor
echangin gafuse
X Par kthe vehicle.
X Switc hoffall electrica lconsum ers.
X Remove th ekeyfrom th eignition lock. Main fuse box in th
eengin ecompart-
ment
X To open: open thebonne t(Ypage 176).
The main fus ebox is locate dintheengine
compartmen tontheleftw hen viewed in the
direction of travel. 1
Fusebox lid
2 To open
3 To close Practical advice
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Fuses
284
X
Push th eslidei ntop osition 2.
X Remove cover 1.
X To close: hookcover 1 to th etabsa nd
close it.
X Push th eslidei ntop osition 3.
! The cover mus tbefittedcorrectly and the
slid em ustbeatt hej symbol. Moisture
or soilin gcould otherwise impair th eoper-
ation of th efuses.
X Clos ethe bonne t(Ypage 177). Practical advice
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285
Note
sont hetechnica ldata ............. 286
Mercedes-Benz genuin eparts ......... 286
Vehicle electronics ...........................287
Vehicle identificatio nplates ............ 288
Engine ................................................ 290
Perfor mance ...................................... 291
Tyre sand wheels .............................. 292
Vehicle dimensions ..........................298
Vehicle weights ................................. 299
Service product sand capacities .....300
Frequencies for garage door open-
ers* .................................................... 307 Te
chnica ldata
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Mercedes-Ben
zgenuine parts 286 Notes on the technical data
i The technical data wasd etermined in
accordance with EU directives. All data
applie stothe vehicle's standard equip-
ment. The data may therefore diffe rfor
vehicles with optional equipment. You can
obtai nfurther information from a
Mercedes-Benz Service Centre. Mercedes-Ben
zgenuine parts
Mercedes-Benz tests genuine parts and con-
versio nparts and accessories which have
been specifically approved for you rvehicle for
their reliability ,safety and suitability .Despite
ongoing market research, Mercedes-Benz is
unable to evaluate other parts. Mercedes-
Benz therefore accepts no responsibility for
the use of such parts in Mercedes-Benz vehi-
cles, even if they have been independently or
officially approved.
In Germany and some other countries ,certain
parts are only officially approved for installa-
tion or modification if they comply with legal
requirements. All genuine Mercedes-Benz
parts meet this requirement. The use of non-
approved parts may invalidate the vehicle's
genera loperating permit. This is the case if:
R they cause achange of the vehicle type
from that for which the vehicle's general
operating permi twasgranted
R other road users coul dbeendangered
R the emission or noise levels are adversely
affected
The use of non-approved parts coul daffect
you rvehicle's operating safety. Mercedes-
Benz therefore recommends genuine Mercedes-Benz parts and conversio
nparts
and accessories that have been approved for
you rvehicle. H
Environmental note
Daimler also supplies reconditioned
assemblies and parts which are of the same
quality as new parts. These parts have the
same warranty as new parts.
Genuine Mercedes-Benz parts and approved
conversio nparts and accessories are availa-
ble from Mercedes-Benz Service Centres.
There ,you can also receive advice about tech-
nical modifications and have the parts pro-
fessionally fitted.
Always quote the vehicl eidentificatio nnum-
ber and the engine numbe rwheno rdering
genuine parts. You wil lfind these numbers on
the vehicle data card in the Service Booklet
or on you rvehicle's identificatio nplates
(Y pag e288). Technical data
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Vehicle electronics
287Vehicle electronics
Tampering with the engine electron-
ics
G
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Onl yhavew orkont he engine electronics
and relate dcomponents carrie doutat a
qualified specialis tworkshop which ha sthe
necessary specialis tknowledg eand tools
to carry ou tthe work required .Mercedes-
Benz recommends tha tyou usea
Mercedes-Benz Service Centre for thi spur-
pose. In particular ,workr elevant to safety
or on safety-relate dsystem smustbec ar-
rie do utataq uali fied specialis tworkshop.
The vehicle's roadworthiness could other-
wise be affected.
! Onlyhavew orkd oneont he engine elec-
tronics and its associated parts, such as
contro lunits, sensor sand connector leads,
carrie doutataq uali fied specialis twork-
shop, e.g .aMercedes-Benz Service
Centre. Otherwise, vehicl ecomponents
ma yw earm oreq uickl yand your vehicle's
warranty and operating permi tmaybe inva-
lidated. Retrofitting electrical and electronic
equipment
Electrical and electronic equipment can jeop-
ardise the operating safety of your vehicle. If
equipment of thi skind is retrofitted ,itmust
be type-approved and bear the emark. The
e mark ma ybeobtained fro mthe equipment
manufacturer or an authorised testing centre.
! Damag eorconsequentia ldamag earisi ng
fro mf itting equipment not approved
by Mercedes-Benz is not covered by the
Mercedes-Benz warranty.
If yo uwishtoi nstalltwo-wa yradios in the
vehicle, yo umusto btainf orma lapp roval.
Mercedes-Benz approves the installatio nof
two-wa yradios if such equipment is installed
professionall yand alow -reflection exterior
aeria lisused.
The transmission outpu tofthe two-wa yradio
must not exceed the maximum transmission
outputs listed. G
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Two-way radios ma yinterfere with the vehi-
cle electronics and thereb yjeopardise the
operational safety of the vehicl eand your
ow ns afety if: R
they do not have an exterio raerial
R the exterio raerialisn otalow -reflection
aerial
R the exterio raerialh as been fitte dincor-
rectly G
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Excessive electromagnetic radiation may
also cause damage to your health and the
health of others. Using an exterio raerial
take sinto account current scientific dis-
cussions relating to the possibl ehealth haz-
ards tha tmayresul tfrome lectromagnetic
fields.
For thi sreason, onl yhavet he exterio raerial
fitte dataq ualified specialis tworkshop
which ha sthe necessary specialis tknowl-
edge and tool stocarry ou tthe work
required .Mercedes-Benz recommends
tha tyou useaM ercedes-Benz Service
Centre for thi spurpose. In particular ,work
relevant to safety or on safety-relate dsys-
tems must be carrie doutataq uali fied
specialis tworkshop.
i Mercedes-Benz recommends the us eof
an approved exterio raerial. Thi sensures
optima lreception quality for mobil etele- Technica
ldata
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