catalytic converter MERCEDES-BENZ SL ROADSTER 2008 Owners Manual

Driving an
dpark ing 97Pulling away
! Warm up the engine quickly .Donot use
the engine's full performance until it has
reache dopera ting temperature.
Onl yshift into reverse gear when the vehi-
cle is stationary.
Wher epossible, avoidspinning the drive
wheels when pulling away on slippery
roads .You could otherwise damage the
driv etrain.
! SL 63 AMG :atlowengine temperatures
(unde r+20†),the maximum engine speed
is limited in order to protect the engine.
Avoid driving at full throttle when the
engine is col dinorder to protect the engine
an dm aintain smooth engine operation.
i Thev ehicl eloc ks centrall yonce yo uhave
pulled away .The locking knob sinthe doors
drop down.
Yo uc an open the doors fro mthe insid eat
an yt ime.
Yo uc an also deactivate the automati cloc k-
ing feature (Y page 120).
i It is onl ypossibl etom ovet he selector
leve rtot he desire dposit ioni fyou depress the brake pedal. Onl
ythenist he selector
leve rloc kr eleased.
X Depress the brake peda land hold it down.
X Pull the parking brake releas ehandleto
releas ethe parking brake.
X Move the selector leve rtopositionDor R.
i Wait until the shif tprocess is completed
befor epulling away.
X Releas ethe brake pedal.
X Carefull ydepress the accelerato rpedal.
i Upshifts tak eplace at higher engine
speeds after acolds tart. This help sthe
catalytic converter to reac hits operating
temperatur emoreq uickly. Parking
G
Ris
kofa ccident
Onl yrem ovet he key fro mthe ignition lock
when the vehicle is stationary since you
cannot steer the vehicle with the key
removed.
Neve rleave childre nunsuper visedint he
vehicle .The yc ould releas ethe parking
brake .Thisc ould lead to aserious or fatal
accident. G
Ris
koff ire
Make sure tha tthe exhaust syste mdoes
not unde rany circumstances com einto
contact with easily ignitabl emateria lsuch
as dr ygrass or petrol. Th emateria lcould
otherwise ignite an dsetthe vehicle on fire. Controls
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Engine compartment
180Example (SL 600)
1
Cap
X Unscrew cap 1and remove it.
X Top up with th eamount of oil required.
! Do not add too much oil. If too much oil
is added and th eoil level is above th emax-
imum mark on th edipstick ,the engine or
catalytic converter could be damaged.
Have excess oil siphoned off.
X Screw cap 1ontothe filler neck. H
Environmental note
When topping up th eoil, tak ecare not to
spill any. Oil must not be allowed to escape
int ot he soil or waterways. You would oth-
erwise be damagin gthe environment. Coolant
G
Risk of injury
The cooling system is pressurised. There-
fore, only unscrew th ecap onc ethe engine
has cooled down. The coolant temperature
gauge must display less than 70 °C. You
could otherwise be scalde dbyescaping hot
coolant.
Coolant consist sofwater and antifreeze/cor-
rosion inhibitor. Only chec kthe coolant level
when th evehicle is on alevel surface and the
engine has cooled down. Checking th
ecoolant level The expansion tan
kislocated in th eengine
compartmen tontheright-han dside of the
vehicle when viewed in th edirectio noftravel. 1
Expansion tank
X Slowly tur nthe cap by half aturna nti-
clockwise to allow excess pressure to
escape.
X Turn th ecap further anti-clockwise and
remove it.
Ther eiss ufficien tcoolant in expansion
tank 1if th ecoolant is level with th emark
in th efiller nec kwhen cold or approxi-
mately 1. 5cmhigher when hot.
X Top up th ecoolant if necessary.
X Position th ecap and screw tight. Operation
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Troubleshooting
245Problem Possible cause/consequence Suggeste
dsolutions Th
ee ngine is not running
smoothly and is misfiring. There is
amalfunctio nint he
engine electronics or amechani-
cal component of the engine con-
trol unit. X
Onl ydepress the accelerator peda lsligh tly.
X Have the caus erectifie dimm ediatel yataq ualified specialis twork-
shop.
Otherwise, non-combuste dfue lm aygetinto the catalytic converter
and damage it. Ac
oolant temperatur eofover
120 °C is displayed. Th ecoolant
warning lamp ma yalsobeona nd
aw arning tone ma ysound
(Y page 106). Th
ec oolant level is too low. The
coolant is too ho tand the engine
is no longe rbeing coole dsuffi-
ciently. X
Stop as soon as possibl eand allo wthe engine and the coolant to
coo ldow n.
X Check the coolant level (Y page 180).Obser ve the warning notes
as yo udosoa nd top up the coolant if necessary. If the coolant level is correct, the
radiato
rfan ma ybef aulty.The
coolant is too ho tand the engine
is no longe rbeing coole dsuffi-
ciently. X
If the coolant temperatur eislesst han1 20 °C ,you can continue
driving to the neares tqualified specialis tworkshop.
X Avoi dheavy loadsont he engine as yo udoso,e.g .whend riving on
mountai nroads and stop/star tdriving. 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
Ris
kofi njury
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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