2008 MERCEDES-BENZ SL ROADSTER radiator

Engine compartment
176formance and increas
epetrol consump-
tion .Avoid driving at full throttle.
In som ecountries ,the available petrol qual-
it ym ay no tbes ufficien tand could cause
cokin garoun dthe inlet valve. In such
cases, and in consultation wit ha
Mercedes-Ben zServic eCentre, th epetrol
may be mixed wit hthe additive recommen-
ded by Mercedes-Ben z(par tno.
A000989254510). You must observ ethe
note sand mixing ratios given on th econ-
tainer.
AMG vehicles and twelve-cylinder
engines !
Refue lusin go nlys uper unleaded petrol
wit ham inimum octan enumber of
98 RON/88 MON conforming to European
standard EN 228.
You could otherwise impai rengineo utput
or damag ethe engine.
You will fin dfurther information about pet-
rol under "Technical data" in th eindex.
i If th erecommended fuel is no tavailable
and only as atem porar ymeasure, you may
also use premium unleaded petrol,
95 RON/85 MON .This may reduce per- formance and increas
epetrol consump-
tion .You must avoi ddriving at full throttle.
! In emergencies, and only when th erec-
ommended fuel is no tavailable, you may
also use standard unleaded petrol,
91 RON/82.5 MON .How ever, usin gthis
fuel result sinconsid erably higher petrol
consumption and significantly reduced per-
formance. Avoid driving at full throttle, and
only driv eindrivep rogram C.
If no fuel other than regular petrol fuel
91 RON/82.5 MON or alower grad eisper-
manentl yavailable, you should have the
vehicle adapted to run on this fuel by the
local after-sales service. Engine compartment
Bonnet
G
Ris
kofa ccident
Do no tpull th erelease leve rwhile th evehi-
cle is in motion .Ifyou do so, th ebonnet
may open up and bloc kyour view.
Opening G
Ris
kofi njury
Ther eisar iskofi njury if th ebonne tisopen,
eve nift heengin eisnotrunning.
Some engin ecom ponent scan become
ver yhot.
To avoi dthe riskofb urns, only touch those
component sdescribe dintheOwner’s Man-
ual and observ ethe relevan tsafet ynotes. G
Ris
kofi njury
The radiator fan between th eradiator and
th ee nginec an start automatically, eve nif
th ek eyhas been remove dfromt heignition
lock. Fo rthisr eason you must no treach
int ot he turnin garea of th efan.Y ou can
otherwise be injured. Operation
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Engine compartment
177The electronic ignition system uses high
voltage. Fo rthisr eason ,you must never
touch component softheignition system
(ignition coil, ignition cable, spar kplug con-
nector or test socket) when:
R thee ngineisr unning
R thee ngineisb eingstarted
R thei gnition is switched on and th eengine
is bein gcranked by hand
X Mak esure that th ewindscree nwiper sare
switched off. G
Ris
kofi njury
The windscree nwiper sand wiper linkage
could be set in motion.
When th ebonne tisopen,you or others
could be injured by th ewiper rods.
Mak esure that th ewindscree nwiper sare
switched off and that th ekeyhas been
pulled out of th eignition loc kbefore open-
ing th ebonnet. The bonne
trelease leve rislocate dinthe
driver' sfootwell. 1
Bonnet releas elever
X Pull bonnet releas elever 1.
The bonnet is released.
! Make sure that th ewindscreen wipers
are not folde dout away fro mthewind-
screen. You can otherwise damage the
windscreen wipers or th ebonnet. The handl
efor opening th ebonnet is located
above th eradiator grille. 2
Bonnet catch handle
X Reach int othe gap, pull bonnet catch han-
dle 2up and lift th ebonnet.
Closing G
Risk of injury
Make sure that nobody can become trap-
ped as you clos ethe bonnet.
X Lower th ebonnet and let it fall fro ma
height of approximately 20 cm.
X Check that th ebonnet has engaged prop-
erly. Operation
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Displa
ymessages 207Display messages Possible cause/consequence Possible solution
DISTRONIC currentl
yunavail-
able Se eOwner's
Manual Distronic
*isd eactivate dand is tempora-
rily not operational if:
R the Distronic* cove rinthe radiator
grill eisd irty.
R its functio nisimpaire ddueto heavy
rain, sno worfog.
R the rada rsensors ystemist emporarily
not operational ,e.g.d ue to electromag-
neti cradiation emitted by nearby TV or
radi ostations or other sources of radi-
ation
R the rada rsensors ystemh asnot detec-
ted any vehicles or stationar yobjects,
e.g .traffi csigns ,for alon gt ime.
R the syste mhasoverheated. Distronic* become
savailable againand the dis-
play message disappears when:
R the dirt (e.g. slush) fall soff whil eyou ared riving
R the syste mdetects tha tthe sensors ar efully
availabl eagain
If the displa ymessage does not disappear:
X Clea nthe Distronic* cove rinthe radiato rgrille
(Y page 198).
X If necessary ,waitu ntilthe syste mhascooled
down.
X Restart the engine. Practical advice
*o ptional
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Displa
ymessages 219Display messages Possible cause/consequence Possible solution
D Coolan
tStopc ar,
turn engine off. Th
ec oolant is too hot. X
Stop the vehicle. Pa yattention to the traffic
conditions as yo udoso.
X Switc hoff the engine.
X Make sure ,tha tthe ai rsuppl ytot he radiator
is not blocked, e.g .bys lush.
X Wait until the messag edisappear sbefore
restarting the engine .There is otherwise arisk
of engine damage.
X Observe the coolant temperature gauge.
X If the temperature increases again, visi taquali-
fied specialis tworksho pimmediately. D Coolan
tStopc ar,
turn engine off. Th
ep oly-V -beltmayhave torn. X
Stop the vehicle. Pa yattention to the traffic
conditions as yo udoso.
X Switc hoff the engine.
X Check the poly-V-belt.
X If it has torn: do not driveon. Contact the
nearest qualifie dspecialis tworkshop.
X If it is no tdamaged: do not start the engine
agai nuntil the messag edisappear s. Thereis
otherwise ariskofe ngine damage. Practical advi
ce
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