2008 MERCEDES-BENZ SL ROADSTER ignition

Troubleshooting
249Roof
Problem Possible cause/consequence Suggeste
dsolutions Th
er oofw illn ot open or close. Th
eb ootseparat or is not in place. X
Clos ethe boot separator. Th
eb ootlid is open. X
Clos ethe boot lid. Th
eo n-board voltag eistoo low. X
Let the engine run. Th
er oofw asopene dand closed
several times in succession. The
roo fdrive wa sautomatically
deactivated. Yo
uc an open or close the roo fagain after abou tten minutes.
X Switch the ignition off and the nonagain.
X Repeat the opening or closing procedure. Th
ea utomatic roo fmechanis mis
faulty. X
Consult aqualified specialis tworkshop. Practical advice
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Troubleshooting
252 Problem Possible cause/consequence Suggeste
dsolutions Th
ek ey cannot be turned in the
ignition lock. Th
ek ey ha sbeeninp osition0for
ac onsiderabl etime. X
Remov ethe key and reinsert it into the ignition lock.
X Check the starter battery and recharge it if necessary
(Y page 276).
X Star tthe engine. Th
eo n-board voltag eistoo low. X
Switch off non-essentia lconsumers ,e.g.s ea th eating* or interior
lighting ,and try to tur nthe key again.
If thi sdoesn ot work:
X Check the starter battery and recharge it if necessary
(Y page 276).
or
X Jump-start the vehicl e(Ypage 279).
or
X Consult aqualified specialis tworkshop. Practical advice
*optional
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Troubleshooting
254 Problem Possible cause/consequence Suggeste
dsolutions Th
ev ehicl ecannot be started
using the KEYLESS GO key and
the KEYLESS GO button. Th eKEY-
LESS GO key is in the vehicle. Ad
ooriso pen. Th ekey therefore
cannot be detecte dsoeasily. X
Clos ethe door and try to start the vehicl eagain. Yo
ud idnot depress the brake
when starting the engine. X
Depres sthe brake and press the KEYLESS GO button. There is interferenc
efromap ow-
erful source of radi owaves. X
Star tyou rv ehicl eusing the KEYLESS GO key in the ignition lock. Yo
uh avel ostthe KEYLESS GO
key. X
Have the KEYLESS GO key cancelle dataMercedes-Benz Service
Centre.
X Report the loss immediatel ytothe vehicl einsurers.
X If necessary ,havet he manua lloc ks change dtoo. Parkin
gupthe vehicle Problem Possible cause/consequence Suggeste
dsolutions Th
ev ehicl eistobel eftp arked up
for longe rtha ns ixweeks. Damag
eresulting fro mnon-use
ma yoccu rift he vehicl eisparked
up for long periods. X
Visi taq ualified specialis tworkshop and seek advice.
X Disconnect the battery ( Ypage 277). Practical advice
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Locking/unlockin
ginanemergency 255Locking/unlocking in an emergency
Emergency key
If th evehicle can no longer be unlocked or
locke dwith th ekeyor th eKEYLESS GO
key*, use th eemergency ke yelement.
If you use th eemergency ke yelemen tto
unlock and open th edriver' sdoor or th eboot
lid, th eanti-thef talarm system* will be trig-
gered (Y page 59).
Ther eare several ways to tur noff th ealarm:
X Press the korj buttonont hekey.
or
X Inser tthe keyintot he ignition lock.
or
X Press th eKEYLESS GO button* on the
selecto rlever. The KEYLESS GO key* must
be in th evehicle.
or
X Loc koru nlock th evehicle usin gKEYLESS
GO*. The KEYLESS GO key* must be out-
side th evehicle. Releasing and removing th
eemergency
key element 1
Release catch
2 Emergency ke yelement
X Push release catch 1in th edirection of
th ea rrow and at th esame tim eremove
emergency ke yelement 2from th ekey. Unlocking th
evehicle
If th evehicle can no longer be unlocked cen-
trally with th ekeyor th eKEYLESS GO key*:
X Remov ethe emergency ke yelemen tfrom
th ek ey ( Ypage 255). $
To unlock
X Inser tthe emergency ke yelemen tint ot he
loc koft hedriver' sdoor as far as it will go.
X Turn th eemergency ke yelemen tanti-
clockwise to position $.
The door is unlocked.
i On right-hand-driv evehicles, tur nthe
emergency ke yelemen tclockwise.
X Turn th eemergency ke yelemen tback and
remove it. Practical advice
*o ptional
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Replacing the wiper blades
264
X
Turn the corresponding bulb holde ranti-
clockwise and remove it.
X Pull the corresponding bulb ou tofthe bulb
holder.
X Insert the appropriate new bulb into the
bulb holder.
X Insert the corresponding bulb holde rand
turn it clockwise.
X Close the side trim panel (Y page 263).
Changin gthe bulbs in the licenc eplate
lamps Licence plate lamp
1
Screws
X Switch off the lights.
X Ope nthe boo tlid. X
Remove screws 1.
X Remove the licence plate lamp.
X Replace the bulb.
X Insert the licence plate lamp.
X Replace and tighten screws 1. Replacing the wiper blades
G
Ris
kofa ccident
The windscree nwilln ot longer be properly
wipe difthe wipe rblade sare worn. This
could prevent yo ufrom observing the traffic
conditions, thereb ycausing an accident.
Replace the wipe rblade stwice ayear, ide-
ally in spring and autumn. G
Ris
kofa ccident
The wipe rarm sc ould start moving and
cause an injury if yo ulea ve the windscreen
wipers switched on.
Remove the key from the ignition lock
before replacing the wipe rblade s.
! Make sure tha tyou touch onl ythe wiper
arm of the windscree nwiper to avoid dam-
aging the windscree nwiper blades. Practical advice
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Replacing the wiper blades
265Removing
Movin gthe wiper blades to avertical
position Vehicles withou
tKEYLESS GO*
X Make sure tha tthe key is in position 1or
2 in the ignition lock.
X Set the windscree nwiper stop osition II
(Y page 93) on the combinatio nswitch.
X Whe nthe wipe rarm sh aver eached aver-
tica lposition, turn the key to position 0and
remove it from the ignition lock.
X Fol dthe wipe rarm away from the wind-
screen unti litengages.
X Set the wipe rblade at right angle stothe
wipe rarm.
Vehicles with KEYLES SGO*
X Switch off the engine.
X Take your foo toff the brake pedal.
X Set the windscree nwiper stop osition II
(Y page 93) on the combinatio nswitch.
X Press the KEYLESS GO button repeatedly
unti lthe windscree nwiper sstart. X
Whe nthe wipe rarm sh aver eached aver-
tica lposition, press the KEYLESS GO but-
ton again.
X Fol dthe wipe rarm away from the wind-
screen unti litengages.
X Set the wipe rblade at right angle stothe
wipe rarm.
Removing the wiper blades X
Remove the wipe rblade from the retainer
on the wipe rarm in the direction of the
arrow. Fitting
X Slide the new wipe rblade into the retainer
on the wipe rarm in the opposite direction
to the arrow.
X Turn the wipe rblade paralle ltothe wiper
arm.
X Fol dthe wipe rarm back onto the wind-
screen. Practical advice
*o ptional
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Flat tyre
266 Flat tyre
Flat tyre
Your vehicl emay be equipped with:
R aT IREFI Tkit (Ypage 201)
R as par ew heel* (Y page 201)
R theM OExtended run-flat sys-
tem* (Y page 275) Preparing th
evehicle
i Vehicl epreparation is no tneces saryon
vehicles wit hMOE tyres*.
X Stop your vehicl easfar away from traffic
as possibl eonsolid, non-slippery, level
ground.
X Switc hont hehazard warnin glamps.
X Firmly depress th eparkin gbrake.
X Mov ethe selector lever to P.
X Allo ccupant smustg et out of th evehicle.
Mak esuret hatthe ya re no tend angered as
they do so.
X Mak esuret hatnoo neis near th edanger
area whils tawheelisb eingchanged. Any-
on ew ho is no tdirectl yassistin ginthe whee
lcha ng es hould, fo rexample, stand
behin dthe barrier.
X Switc hoffthee ngine.
X Remove th ekeyfrom th eignition lock.
X Get out of th evehicle.
X Clos ethe driver's door.
X Plac ethe warnin gtriangle ( Ypage 200) at
as uitable distance. Observ elegal require-
ments. Usin
gthe TIREFIT kit
You can use th eTIREFI Tkitto seal small
punctures ,particularl ytho se in th etyret read.
You can use TIREFI Tinoutdoo rtem peratures
down to -2 0°C. G
Risk of accident
In th efollowing situations, your safet yisat
particular ris kand tyr esealant is unable to
provid ebreakdown assistance:
R if there are cut sorpunctures in th etyre
greate rtha n4mm
R if th ewhee lrim is damaged
R if you hav edriven at ver ylow tyr epres-
sures or on aflat tyre Do no
tdrive any further. Consult aqualified
specialist workshop whic hhas th eneces-
sar yspecialist knowledge and tools to carry
out th eworkr equired.
Mercedes-Ben zrecommends that you use
aM ercedes-Ben zServi ce Centr efor this
purpose .Inparticular, wor krelevan tto
safet yoro nsafety-related systems mus tbe
carrie dout at aqualified specialist work-
shop.
X Do no tremove any foreign objects which
hav epenetrated th etyre, e.g. screw sor
nails.
X Remove TIREFIT, th eaccompanying "max.
80 km/h "sticke rand the electric ai rpump
fro mt he stowage well underneath the boot
floo r(Ypage 200). Practical advice
*optional
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Battery
277step ou
tofthe vehicl efirst and touch the
bodywork.
R Do not wipe the battery using acloth. The
battery ma yexplode as aresul tofe lec-
trostati ccharge or du etoflying sparks.
! Switch the engine off and remove the key
befor eunscrewing or disconnecting the
termina lclamps fro mthe battery .You may
otherwis edestro ye lectronic components
such as the alternator.
i Mercedes-Benz recommends tha tyou
have al lworki nvolving the battery ,e.g.
removing, charging and replacing ,carried
ou tata qualified specialis tworkshop ,e.g.
aM ercedes-Benz Service Centre.
Installation locatio nofthe battery Your vehicl
eisequippe dwitht wo batteries:
R Starter battery in the engine compartment
R Consumer battery in the boot Starter battery in the engine compartment
1 Positive terminal
2 Negative terminal Disconnecting the battery
G
Ris
kofa ccident
If the battery is disconnected:
R the brake boosting effect will not be avail-
able .Greate rbraking force will then be
required and the brake peda ltravel will
be longer. If necessary ,depress the
brake peda lwithm aximum force.
R yo uc an no longe rturnt he key in the igni-
tio na nd,onv ehicles with KEYLESS GO*, pressing the KEYLESS GO button*
will have no effect
R the selector lever is locked in position P
! Alway sdisconnect the battery in
the order describe dbelow .Never swap the
termina lclamps .You mayotherwis edam-
ag et he vehicl eelectronics.
Disconnecting the starte rbattery X
Firmly depress the parking brake and shift
the selector lever to position Pon vehicles
with automatic transmission*.
X Switch off al lelectrical consumers.
X Turn the key to position 0in the ignition
lock and remove it.
X Open the bonnet.
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.
X Disconnect the breather hose. Practical advice
*o ptional
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