2018 MERCEDES-BENZ SL CLASS fuel pressure

Protecting the environment
General notes
H Environmental note
Daimler's declared policy is one of compre-
hensive environmental protection.
The objectives are for the natural resources
that form the basis of our existence on this
planet to be used sparingly and in am anner
that takes the requirements of both nature
and humanity into account.
You too can help to protect the environment
by operating your vehicle in an environmen-
tally responsible manner.
Fuel consumption and the rate of engine,
transmission, brake and tire wear are affected
by these factors: R
operating condition sofy our vehicleR
your personal driving style
You can influence both factors. You should
bear the following in mind:
Operating conditions: R
avoid short trips as these increase fuel con-
sumption. R
always make sure that the tire pressures
are correct. R
do not carry any unnecessary weight. R
remove roof racks once you no longer need
them. R
ar egularly serviced vehicle will contribute
to environmental protection. You should
therefore adhere to the service intervals. R
always have service work carried out at a
qualified specialist workshop.
Personal driving style: R
do not depress the accelerator pedal when
startin gt he engine.R
do not warm up the engine when the vehicle
is stationary. R
drive carefully and maintain as afe distance
from the vehicle in front. R
avoid frequent, sudden acceleration and
braking. R
change gear in good time and use each gear
only up to

D Neutral
Do not shift the transmission to D
whil ed riving .T he automatic trans-
mission could otherwis ebed am -
aged.
No powe rist ransmitted fro mt he
engine to the drive wheels.
Releasing the brake peda lw il la llow
yo utom ov et he vehicl ef reely, e.g .t o
push it or tow it.
If ESP ®
is deactivated or faulty: shift
the transmission to position D if
the vehicl eisind an ge rofs kidding,
e.g .oni cy roads.
! Coasting in neutral \\ may
cause damage to the drive train.
: Drive
The automatic transmission changes
gear automatically. All forward gears
ar ea vailable.
Driving tips
Changin gg ea rThe automatic transmission shifts throug ht he
individual gear sa ut omaticall yw he nitisint rans-
mission position [ .T hi sa ut omatic gear shift-
ing behavio risd et ermine db y:R
the selecte dd rive programR
the positio noft he accelerator pedalR
the roa ds peed
Accelerator peda lp ositionYour style of driving influences how the auto-
matic transmission shifts gear: R
little throttle :e ar ly upshiftsR
mor et hrottle :l at eu ps hifts Kickdown Use kickdow nf or maximum acceleration. X
Depres st he accelerator peda lb eyond the
pressure point.
The automatic transmission shifts to al ower
gear depending on the engine speed. X
Eas eo ff the accelerator peda lo nce the
desired speed is reached.
The automatic transmission shifts back up.
Drive programs
Drive program C( Co mfort)In urba nt raffi ca nd stop-start traffic, drive pro-
gram C is recommended.
Driv ep rogram C is characterized by the follow-
ing: R
the vehicl ed elivers comfortable, economical
handling characteristics. R
the vehicl ep ulls away mor eg en tly in forward
and revers eg ears ,u nless the accelerator
peda lisd ep resse df ully.R
the vehicl eh as improved driving stability, for
exampl eons lipper yr oa ds ur faces.R
optima lf ue lc onsumption resulting fro mt he
automatic transmission shifting up sooner.
The vehicl eisd riven in the lo we ngine speed
range and the wheels ar el es sl ik el ytos pi n.R
th es us pension exhibits comfortabl ed am ping
settings (adaptive damping system onl yi n
vehicles with AMG RIDE CONTROL sports
suspension). R
the steering exhibits comfortabl es teering
characteristics.
Drive program S( Sp ort)Driv ep rogram S is characterized by the follow-
ing: R
the vehicl ee xhibits sporty driving character-
istics. R
the vehicl ep ulls away in first gear. R
the automatic transmission shifts up later.
The fuel consumption possibl yb ei ng higher
as ar esul toft he later automatic transmission
shift points.Automati ct ransmission 125
Driving an dp arking Z

Drivin gt ip s
General notes
Important safet yn otes
G WARNING
If you switch of ft he ignition whil ed riving,
safety-relevant function sa re only available
wit hl imitations, or no tata ll. Thi sc ou ld affect,
fo re xa mple, th ep owe rs te erin ga nd th eb rake
boostin ge ffect. You will require considerably
more effort to steer and brake .T here is ar is k
of an accident.
Do no ts witch of ft he ignition whil ed riving.
G WARNING
If you operat em ob ile communication equip -
men tw hen driving, you may be distracted
from th et ra ffic situation .Y ou could also los e
contro loft he vehicle. There is ar is kofa n
accident.
Only operat et hi se quipmen tw hen th ev ehicle
is stationary.
Observ et he lega lr equirements fo rt he country
in whic hy ou are driving. Some jurisdiction sp ro -
hibi tt he driver from usin gam ob ile phone whil e
drivin gav ehicle.
If you mak eac al lw hil ed riving, always use
hands-free mode. Only operat et he telephon e
when th et ra ffic situation permits. If you are
unsure ,p ull over to as af el ocation and stop
befor eo peratin gt he telephone.
Bear in min dt ha tatas peed of only 30 mph
(approximately 50 km/h), th ev ehicle cover sa
distanc eo f4 4f t( approximately 14 m) per sec-
ond.
Drive sensibly –s ave fuelObserve the following tips to save fuel: R
The tires should always be inflated to the rec-
ommended tire pressure. R
Remove unnecessary loads. R
Warm up the engin eatl ow engin es peeds.R
Avoid frequen ta cceleration or braking.R
Observe the servic ei ntervals in the Mainte-
nanc eB ooklet or in the servic ei nterval dis- play. Have all the maintenanc ew ork carried in
accordance with Daimler AG regulations.
Fuel consumption also increases when driving in
cold weather, in stop-start traffic and in hilly ter-
rain.
Drinking and driving
G WARNING
Drinkin ga nd driving and/or takin gd rugs and
driving are very dangerous combinations.
Even as mall amount of alcohol or drugs can
affect your reflexes, perceptions and judg-
ment.
The possibility of as erious or even fatal acci-
dent is greatly increased when you drink or
take drugs and drive.
Do not drink or take drugs and drive or allow
anyone to drive who has been drinking or tak-
ing drugs.
Emission control
G WARNING
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. Inhaling
these exhaust gases leads to poisoning. There
is ar isk of fatal injury. Therefor en ever leave
the engin er unning in enclosed spaces with-
out sufficien tv entilation.
Certain engin es ystems are designed to keep
the level of poisonous component sine xhaust
fumes within legal limits.
These systems only work at peak efficiency if
they are serviced exactly in accordance with the
manufacturer's specifications .A lways have
work on the engin ec arried out at aq ualified
specialist workshop. Mercedes-Benz recom-
mends that you use an authorized Mercedes-
Ben zC enter for this purpose. In particular, work
relevant to safety or on safety-related systems
must be carried out at aq ualified specialist
workshop.
The engin es ettings must not be changed under
any circumstances. Furthermore, all specific
servic ew ork must be carried out at regular
intervals and in accordance with the Mercedes-
Ben zs ervic er equirements. Details can be found
in the Maintenance Booklet.134
Driving tips
Driving and parking

R
seals R
trim R
ventilation slots
Damaged seals or electrical component sc an
lead to leaks or failures.
! Do not use high-pressure cleaners if the
tank recess is open while you clean it. This
can cause damage to the seals or other com-
ponents.
Cleaning the paintwork
! Do not affix: R
stickers R
films R
magnetic plates or similar items
to painted surfaces. You could otherwise
damage the paintwork.
Scratches, corrosive deposits, areas affected by
corrosion and damage caused by inadequate
care cannot always be completely repaired. In
such cases, visit aq ualified specialist workshop.X
Remove dirt immediately ,w here possible,
while avoiding rubbing too hard. X
Soak insect remains with insect remover and
rinse off the treated areas afterwards. X
Soak bird droppings with water and rinse off
the treated areas afterwards. X
Remove coolant, brake fluid, tree resin, oils,
fuels and greases by rubbing gently with a
cloth soaked in petroleum ether or lighter
fluid. X
Use tar remover to remove tar stains. X
Use silicone remover to remove wax.
If water no longer forms "beads" on the paint
surface, use the paint care products recommen-
ded and approved by Mercedes-Benz .T his is the
case approximately every three to five months,
depending on the climate conditions and the
care product used.
If dirt has penetrated the paint surface or if the
paint has become dull ,t he paint cleaner recom-
mended and approved by Mercedes-Benz
should be used.
Do not use these care products in the sun or on
the hood while the hood is hot. X
Use as uitable touch-up stick, e.g. MB Touch-
Up Stick ,tor epair slight damage to the paint-
work quickly and provisionally. Matt ef inish care
! Never polish the vehicle or the light alloy
wheels. Polishing causes the finish to shine.
! The following can give the paint ag lossy
appearance and thus reduce the matt effect: R
Rubbing hard with unsuitable agents R
Washing the vehicle in direct sunlight
! Never use paint cleaner, buffing or polishing
products, or gloss preserver, e.g. wax, for the
purpose of paintwork care. These products
are only suitable for high-gloss surfaces. Their
use on vehicles with matte paintwork leads to
considerable surface damage or, more spe-
cifically ,tos hiny, spotted areas.
Always have paintwork repairs carried out at a
qualified specialist workshop.
! Only use automatic car washes which cor-
respond to the latest technological stand-
ards. Never use wash programs which finish
by treating the vehicle with hot wax.
Observe these notes if your vehicle has ac lear
matte finish. This will help you to avoid damage
to the paintwork due to incorrect treatment.
These notes also apply to light alloy wheels with
ac lear matte finish.
i Use only insect remover and car shampoo
from the range of recommended and
approved Mercedes-Benz care products.
Cleaning the decorative film
! The following may have an effect on the ser-
vice life and coloring of decorative film: R
sunlight R
temperature, e.g. hot-air fan R
weather conditions R
stone impacts and dirt R
chemical cleaning agents R
greasy substances
! Do not use any types of polish on matt dec-
orative film. Polishing surfaces covered with
film gives it as hiny finish.
! Do not treat matt or structured decorative
film with wax. This may lead to marks that
cannot be removed.240
Care
Maintenance and care

H Environmenta ln ote
Hav et he used tir es ealan tb ottle disposed of
professionally, e.g .ataq ualifie ds pecialist
workshop.
If tir ep ressure of 20 0k Pa (2.0 ba r/ 29 psi )h as
bee na chieved after am aximu mp eriod of ten
minutes: X
Switch off the tire inflation compressor. X
Unscrew the filler hose from the valve of the
faulty tire. X
Stow the tire sealant bottle and the tire infla-
tion compressor. X
Pull away immediately .X
Stop after driving for approximately ten
minutes and check the tire pressure with the
tire inflation compressor.
The tire pressure must now be at least
130 kPa (1.3 bar/19 psi).
G WARNING
If the required tire pressure is not reached
after driving for as hort period, the tire is too
badly damaged. The tire sealant cannot repair
the tire in this instance. Damaged tires and a
tire pressure that is too low can significantly
impair the vehicle's braking and driving char-
acteristics. There is ar isk of accident.
Do not continue driving. Contact aq ualified
specialist workshop.
i In cases such as the one mentioned above,
contact an authorized Mercedes-Benz Cen-
ter. Or call 1-800-FOR-MERCede s( in the
USA) or 1-800-387-0100 (in Canada). X
Correct the tire pressure if it is still at least
130 kPa (1.3 bar/19 psi) .S ee the Tire and
Loading Information placard on the driver's
side B-pillar or the tire pressure tabl eint he
fuel filler fla pf or values.X
To increase the tire pressure: switch on the
tire inflation compressor. X
To reduce the tire pressure: depress pres-
sure release button C next to pressure
gauge D . X
When the tire pressure is correct, unscrew the
filler hose from the valve of the sealed tire. X
Screw the valve cap onto the tire valve of the
sealed tire.
X
To remove the tire sealant bottle from the tire
inflation compressor, press together the lock-
ing tabs on the yellow cap. X
Pul lt he tire sealant bottle out of the tire infla-
tion compressor.
The filler hose remains attache dtot he tire
sealant bottle. X
Drive to the nearest qualified specialist work-
shop and have the tire change dt here.X
Have the tire sealant bottle and the filler hose
replaced as soon as possibl eataq ualified
specialist workshop. X
Have the tire sealant bottle replaced every
four years at aq ualified specialist workshop.250
Flat tire
Breakdow na ssistance

Tire and Loadin gI nfor matio np lacard
C
Recommended tire pressures
The Tire and Loading Informatio np la card is on
the B-pillar on the driver's side ( Y
page 271).
The Tire and Loading Informatio np la card con-
tains the recommende dt ire pressures for cold
tires. The recommende dt ire pressures ar ev alid
for the maximum permissibl el oa da nd up to the
maximum permissibl ev ehicl es peed.
Tire pressure table The tire pressure table is on the insid eoft he fuel
fille rf lap. It shows the tire pressure for al lt ires
permitted at the factory for thi sv ehicle; see
illustratio n( ex ample).
The tire pressure table contains the recommen-
de dp ressures for col dt ire sf or various operat-
ing conditions, i.e .d if ferin gl oa da nd spee dc on-
ditions.
If at ire size precedes at ire pressure, the fol-
lowing tire pressure informatio ni so nl yv alid for
tha tt ire size; see illustratio n( ex ample). The load conditions "partiall yl aden "a nd "fully
laden" ar ed ef ine dint he table for different num-
bers of occupants and amounts of luggage .T he
actual numbe rofs eats ma yd if fer.
Some tire pressure table ss ho wo nl yt he rim
diameters instea doft he full tire size, e.g. R18 .
Ri md iame te risp ar toft he tire size and can be
found on the tire sidewall ( Y
page 275).
If the tire pressures have been set to the lower
values for lighte rl oads and/or lowe rr oad
speeds ,t he pressures shoul dber eset to the
highe rv alues : R
if yo uw an ttod rive with an increased load
and/or R
if yo uw an ttod rive at highe rr oa ds peeds
The tire pressures for increased load sa nd/or
highe rr oa ds peeds, shown in the tire pressure
table ,m ay have an egative effect on driving
comfort.
If the tire pressure is not set correctly, thi sc an
lead to an excessive build-u pofh ea ta nd as ud -
de nl os sofp ressure.
For mor ei nformation, contact aq uali fied spe-
cialist workshop.264
Tire pressure
Wheel sa nd tires

Important notes on tire pressure
G WARNIN G
If th et ir ep ressur ed rops repeatedly, th e
wheel, valv eort ir em ay be damaged. Tir e
pressur et ha tist oo low may result in at ir e
blow-out .T her eisar is kofana ccident.R
Chec kt he tire for foreign objects .R
Chec kw hether th ew hee lisl osing air or th e
valv eisl eaking .
If you are unable to rectify th ed amage, con-
tac taq ualified specialist workshop.
G WARNIN G
If you fit unsuitable accessories onto tire
valves, th et ir ev alves may be overloaded and
malfunction ,w hic hc an caus et ir ep ressur e
loss .D ue to their design ,r etrofitte dt ir ep res-
sur em onitors keep th et ir ev alv eo pen .T his
can also result in tire pressur el oss .T her eisa
ris kofana ccident.
Only screw th es ta ndard valv ec ap or other
valv ec ap sa pprove dbyM ercedes-Ben zf or
your vehicl eo nt ot he tire valve.
Use as uitable pressur eg auge to chec kt he tire
pressure. The outer appearanc eofat ir ed oes
no tp ermit any reliable conclusio na bout th et ir e
pressure. On vehicles equipped wit ht he elec -
tronic tire pressur em onitor, th et ir ep ressur e
can be checke dint he on-board computer.
The tire temperature and pressur ei ncreas e
when th ev ehicl eisinm otion .T his is dependen t
on th ed riving spee da nd th el oad.
Therefore, you should only correc tt ir ep res-
sures when th et ir es are cold.
The tires are cold: R
if th ev ehicl eh as been parked wit ht he tires
out of direct sunligh tf or at least three hour s
and R
if th ev ehicl eh as no tb een driven further than
1m ile (1. 6k m)
The tire temperature changes depending on th e
outside temperature, th ev ehicl es pee da nd th e
tire load. If th et ir et em p erature changes by
18 ‡( 10
†), th et ir ep ressur ec ha nges by
approximately 10 kP a( 0. 1b ar/1.5 psi) .T ak e
this int oa ccoun tw hen checkin gt he pressur eo f
warm tires .O nl yc orrect th et ir ep ressur eifiti s to ol ow for th ec urren to perating conditions. If
you chec kt he tire pressur ew hen th et ir es are
warm ,t he resulting value will be higher than if
th et ir es were cold. This is normal. Do no t
reduce th et ir ep ressur etot he value specifie d
for cold tires .T he tire pressur ew ould otherwise
be to ol ow.
Observ et he recommended tire pressures for
cold tires : R
on th eT ir ea nd Loading Information placard
on th eB -p illar on th ed river' ss ideR
in th et ir ep ressur et able on th ei nside of th e
fuel filler flap R
printe diny ellow on th er im of th ee mer-
gency/collapsible spar ew hee l( dependin go n
vehicl ee quipment)
Underinflated or overinflated tires
Underinflated tires
G WARNIN G
Tires wit hp ressur et ha tist oo low can over-
heat and burs tasa consequence .Ina ddition ,
they also suffer from excessiv ea nd/o ri rreg-
ular wear, whic hc an severely impair th eb rak -
ing properties and th ed riving characteristics .
Ther eisar is kofana ccident.
Avoid tire pressures that are to ol ow in all th e
tires ,i ncludin gt he spar ew heel.
Underinflated tires may: R
overheat, leadin gtot ir ed efectsR
adversely affec th andlin gR
wear excessively and/o ru nevenlyR
hav eana dverse effec tonf uel consumption
Overinflated tires
G WARNIN G
Tires wit he xces sively high pressur ec an burs t
because they are damaged mor ee asil yb y
road debris, pothole se tc .Ina ddition ,t he y
also suffer from irregular wear ,w hic hc an
severely impair th eb raking properties and th e
driving characteristics .T her eisar is kofa n
accident. Tire pressure 265
Wheels and tires Z

Avoi dt ire pressures tha ta re too high in al lt he
tires, including the spare wheel.
Overinflated tire sm ay :R
increase the braking distance R
adversel ya ffect handlingR
wear excessivel ya nd/or unevenlyR
have an adverse effect on rid ec omfortR
be more susceptibl etod amag e
Maximum tire pressures
C
Example: maximu mp er missibl et ire pres-
sure
Never exceed the maximu mp er missibl et ire
inflation pressure. Alway so bs erve the recom-
mended tire pressure for your vehicl ew he n
adjusting the tire pressure ( Y
page 263).
i The actual values for tire sa re vehicle-spe-
cifi ca nd ma yd ev iate from the values in the
illustration.
Checkin gt he tire pressures
Important safety notes The tire pressure monitor does not warn yo uo f:R
incorrectly set tire pressure R
sudden loss of tire pressure, e.g .f rom af or-
eign object tha th as penetrated the tire
Observ et he notes on tire pressure
( Y
page 263). Informatio nona ir pressure for the tire sony ou r
vehicl ec an be found: R
on the vehicle's Tire and Loading Information
placard on the B-pillar R
on the tire pressure table in the fuel fille rf lapR
in the "Tire pressure" section
Checkin gt ire pressure sm anuallyTo determine and set the correct tire pressure,
procee dasf ollows: X
Remove the valve cap of the tire tha ti stob e
checked. X
Press the tire pressure gaug es ecurel yo nto
the valve. X
Read the tire pressure and compar eittot he
recommende dv alue on the Tire and Loading
Informatio np la card or the tire pressure table
( Y
page 263). X
If the tire pressure is too low, increase the tire
pressure to the recommende dv alue.X
If the tire pressure is too high, release air. To
do so, press down the meta lp in in the valve,
using the tip of ap en for example. The nc heck
the tire pressure agai nu si ng the tire pressure
checker. X
Screw the valve cap onto the valve. X
Repeat thes es tep sf or the othe rt ires.
Tire pressure loss warning system
(Canada only)
General notes While the vehicl eisinm otion, the tire pressure
loss warning system monitors the set tire pres-
sure using the rotational speed of the wheels.
Thi se nables the system to detect significant
pressure loss in at ire .Ift he speed of rotatio no f
aw heel change sasa resul tofa loss of pressure,
ac orresponding warning message will appear in
the multifunctio nd is play.
Yo uc an recognize the tire pressure loss warning
by the Run Fla tI ndicator Active Press
'OK 'toR estart message which appear si n
the Serv. menu of the multifunctio nd is play.
Informatio nont he message display can be
found in the "Restarting the tire pressure loss
warning system "s ectio n( Y
page 267).266
Tire pressure
Wheel sa nd tires