2008 MERCEDES-BENZ SL ROADSTER winter tyres

Driving sys
tems 136
Making adjustments in 10 km/
hincre-
ments X
Briefl ypress the cruis econtrol lever up
1 for ahighe rspeed or down 4for a
lowe rspeed.
or
X Kee pthe cruis econtrol lever presse duntil
the desired spee disset.P ress the cruise
control lever ,up1forahighe rspeed or
down 4for alower speed.
Making fine adjustments in 1km/h
increments X
Fo rah ighe rs peed: brieflypullt he cruise
control lever towards you 3.
or
X Kee pthe cruis econtrol lever pulled
towards you 3unti lthe desired spee dis
set.
Deactivating variabl eSpeedtronic There ar
eseveral ways to deactivate variable
Speedtronic:
X Briefl ypress the cruis econtrol lever for-
wards 6.
or X
Briefl ypress the cruis econtrol lever in the
directio nofarrow 5.
LIM indicator lamp 2in the cruis econtrol
lever goes out. Variable Speedtroni cis
deactivated.
Cruise control or Distronic* is selected.
Variable Speedtroni cisd eact ivate dautomat-
icall ywheny ou depress the accelerator pedal
beyond the pressure point (kickdown) ,but
onl yify ourc urrent spee ddoesn ot diffe rby
mor ethan20k m/h fro mthe stored speed.
Yo uw illh ea raw arning tone if thi sisthe case. G
Ris
kofa ccident
It is not possibl etodeactivate variable
Speedtroni cbybraking.
i Thelas ts peed stored is cleared when you
switch off the engine.
Permanent Speedtronic i
Permanent Speedtroni ciso nlya vailable
in certai ncountries.
Yo uc an uset he on-board computer to limit
the spee dpermanentl ytoavaluebetween
160 km/h (e.g. for driving with winter tyres)
and the maximum speed. Shortl
ybefor et he stored spee disreache dit
appear sinthe multi-functio ndisplay.
Yo uc annot exceed the stored limi tspeed,
eve nify oudepress the accelerator pedal
beyond the pressure point (kickdown).
Settin gpermanent Speedtronic
X Press the èor· button to select the
Settings menu(Ypage 116).
X Press the jbutton to call up the selec-
tio nofs ubmenus.
X Press the æorç button to select the
Vehicle submenu.
X Press the jbutton to select Speed
limit (winte rtyres) . X
Press the æorç button to select the
desired setting.
Th ef ollowing setting scan be selected:
R Off Controls
*optional
230_AKB; 5; 4, en-GB
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Tyre
sand wheels 184It is therefore recommended to additionally
equi pyourv ehicl ewitht he TIREFIT kit*
when fitting tyres tha tdon ot featur erun-
flat properties ,e.g.w inter tyres.
i ATIREFIT kit* is availabl efroma ny quali-
fied specialis tworkshop ,e.g.aM ercedes-
Benz Service Centre.
Yo uw illf indn ote sond riving with aflatt yre
in the "Practical advice" section
(Y page 275). Tyre tread
G
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kofa ccident
Bea rinm indt hat:
R tyr eg ripd ecreases rapidl yonwetroads
when the trea ddepth is less tha n3mm.
Yo us houl dthusr eplace tyres tha thave
insufficient tread.
R winter tyres shoul dbereplaced when the
trea ddepth is 4mmorl essb ecause oth-
erwis etheynol ongerp rovide adequate
grip.
R the trea donatyrem aynot wear evenly.
Yo us houl dthu sregularly check the tread
depth and the condition of the tread acros
sthe entire width of al ltyres .Ifnec-
essary ,tur nt he steering whee lsothat
yo uc an seet he tyr etrea dm oree asily.
Yo uc ould otherwis elosec ontrol of the
vehicl eand caus eanaccident du etothe
reduced gri pofthe tyres on the road. Tyre pressures
i Youw illf indat able of tyr epressures for
variou soperating conditions on the inside
of your vehicle' sfue lfiller flap
(Y page 175).
Th ev alid valuefor the spar ewheel *iss ta-
ted on the spar ewheel and in the technical
data section. G
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kofa ccident
Tyre pressure tha tise ithe rtoo high or too
lo wh asan egative effect on the vehicle’s
driving safety ,which could lead yo uto
caus eana ccident. Yo ushoul dtherefore
regularly check the pressure of al lyour
tyres (including the spar etyre*), particu-
larl yprior to long trips ,and correc tthe
pressure as necessary.
To tes ttyrep ressure, us easuitabl epressure
gauge. Th eouter appearanc eofatyred oes not permi
tany reliabl econclusio nabout the
tyr ep ressure. On vehicles fitted with the elec-
troni ctyrep ressure monitor* ,the tyr epres-
sure ca nbechecked in the on-board com-
puter. G
Ris
kofa ccident
Shoul dthe tyr epressure dro prepeatedly:
R Check the tyr efor foreign bodies.
R Check whether the whee lislosin gairor
the valv eisleaking.
Tyre pressure tha tist oo lo whasan egative
effect on the vehicle’ sactive safety ,which
could lead to your causing an accident.
Tyre pressure change sbyapproximately
0.1 ba rfor every 10 °C change in ambient
temperature.
If yo umeasure the tyr epressure in enclosed
spaces where the temperatur ediffers from
the outside temperature, yo uwillh avetoc or-
rec tthe measured valu eaccordingly.
When the vehicl eisdriven, the tyr etempera-
ture, and with it the tyr epressure, will
increase depending on the roa dspeed and
the load on the tyres.
Therefore, yo ushoul donlyc orrec ttyrep res-
sures when the tyres ar ecold. Operation
*optional
230_AKB; 5; 4, en-GB
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Winte
rdriving 189Winte
rdriving Points to remember
Have you rvehicle winterproofed at aqualified
specialist workshop, e.g. at aMercedes-Benz
Service Centre, at the onset of winter.
! Take care not to damage the sealing strip
and the moulding on the sid eofthe rear
window whe nscraping ice off the rear win-
dow. Winte
rtyres
Use winter tyres at temperatures below
+7 °C and on snow or ice-covere droads. Only
then can the effect of the ABS and ESP ®
driv-
ing systems be ensure dinwinter too.
Use winter tyres of the same make and tread
on allw heels to maintain safe handling char-
acteristics. G
Risk of accident
Winter tyres with atread depth of less than
4mmm ust be replaced immediately .They
are no longe rsuitabl efor winter use ,can
no longe rprovide sufficient grip .This could
cause you to lose control of you rvehicle
and cause an accident. Always observe the maximu
mpermitted
spee dspecified for the winter tyres you have
fitted. If you fit winter tyres which have a
lower maximu mpermitted spee dthan that of
the vehicle, affi xanappropriate warning sign
in the driver's fiel dofvision. This can be
obtained at aqualified specialist workshop,
e.g. from aMercedes-Benz Service Centre.
Under these circumstances, you should also
restrict the maximu mspee doft he vehicle
using permanent Speedtronic 20
to the maxi-
mum permissible spee dfor the winter tyres
(Y pag e136).
Once you have fitted the winter tyres:
X Check the tyre pressures (Y page184).
X Restart the tyre pressure moni-
tor* (Y page186). G
Risk of accident
If you fit the spare wheel* whe ndriving with
winter tyres, bea rinmind that driving sta-
bility wil lbeimpaired owing to unstable
cornering characteristics caused by the dif-
ferent tyres. You should therefore adapt
you rdriving styl eand drive carefully.
Have the spare wheel* replaced at the
nearest qualified specialist workshop which has the necessary specialist knowl-
edge and tools to carry out the work
required
.Mercedes-Benz recommends
that you use aMercedes-Benz Service
Centre for this purpose. In particular, work
relevant to safety or on safety-related sys-
tems must be carrie dout at aqualified
specialist workshop. Sno
wchains
For safety reasons, Mercedes-Benz recom-
mends that you only use snow chains which
have bee nspecially approved for you rvehicle
by Mercedes-Benz, or are of acorresponding
standard of quality.
! Information about the use of snow chain-
compatibl eAMG winter tyres is applicable
for AMG tyres. Use of snow chains is only
permissible with these tyres.
If you intend to fit snow chains, please bear
the following points in mind:
20 Only available for certai ncountries. Operation
*o ptional
230_AKB; 5; 4, en-GB
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Tyre
sand wheels 293Tyre
soft he same dimensions SL 28
0/SL3 50 SL 500
17" Both axles Summe
rtyres 255/4
5R1798W –
Winter
tyres 255/45 R1
798V M+S 255/45 R1
798V M+S Light-alloy wheels 8.5J
x17H2ET35 8.5J
x17H2ET35 18" Both axles Summe
rtyres 255/40 R1
895W 255/40 R1
895W Winter tyres 255/40 R1
895V M+S 255/40 R1
895V M+S Winter tyres
28
,29 255/40 R1
895V M+S MOExtended 255/40 R1
895V M+S MOExtended Light-alloy wheels 8.5J
x18H2ET35 8.5J
x18H2ET35 28
Tyres with run-flat characteristics and onl yincombinatio nwitht he tyr epressure loss warnin gortyrep ressure monitor* activated.
29 Winter tyres for retrofitting .Onlyc ertain tyr ebrands ar eapproved .Ask your Mercedes-Benz Service Centre for mor einformation. Technica
ldata
*o ptional
230_AKB; 5; 4, en-GB
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Tyre
sand wheels 294 SL 600 SL 63 AMG SL 65 AMG
18" Both
axles Winte
rtyres 255/4
0R1895VM +S 255/40 R1
895V M+S –
Winter
tyres30
,31 255/40 R1
895V M+S MOExtended – –
Light-alloy
wheels 8.5J
x18H2ET35 8.5J
x18H2ET30 –
19" Both
axles Winter tyres – 255/35 R1
996V XL M+S 255/35 R1
996V XL M+S Light-alloy
wheels – 8.5J
x19H2ET30 8.5J
x19H2ET30 30
Tyres with run-flat characteristics and onl yincombinatio nwitht he tyr epressure loss warnin gortyrep ressure monitor* activated.
31 Winter tyres for retrofitting .Onlyc ertain tyr ebrands ar eapproved .Ask your Mercedes-Benz Service Centre for mor einformation. Technica
ldata
*optional
230_AKB; 5; 4, en-GB
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