fuel consumption MERCEDES-BENZ SLC ROADSTER 2018 Owner's Manual

Driving on wetroads ...................... 138
Exhaus tcheck ............................... 134
Fuel ................................................ 134
Genera l.......................................... 134
Hydroplaning ................................. 138
Icy roa dsurfaces ........................... 138
Limited braking efficiency on sal-
ted roads ....................................... 137
Snow chains .................................. 262
Subjecting brakes to aloa d. .......... 136
We troa ds urface ........................... 136
DVD video
Operating (on-boar dcomputer) ..... 169
seea lsoD igita lOperator'sM an-
ua l.................................................. 211
DYNAMIC SELECT button .................. 121
E
EASY-ENTRY feature
Activating/deactivating ................. 174
Function/note s................................ 89
EASY-EXIT feature
Crash-responsiv e............................. 90
Function/note s................................ 89
Switching on/off. .......................... 174
EBD (electronicb rake forcedistri-
bution)
Displa ymessage ............................ 181
Function/note s................................ 63
EC Od isplay
Function/note s............................. 135
On-board compute r....................... 166
EC Os tart/stopf unction
Automati cengine start .................. 119
Automati cengine switch-off .......... 119
Deactivating/activating ................. 120
Genera linformation ....................... 119
Important safety notes .................. 119
Introduction ................................... 118
Electronic Stability Program
see ESP
®(Electronic Stability Program)
Emergency
Automati cmeasures afte ranacci-
dent ................................................. 53
Emergencyr elease
Driver's doo r.................................... 72
Trunk ............................................... 74 Vehicl
e............................................. 72
Emergencys pare wheel
Genera lnotes ................................ 286
Important safety notes .................. 285
Removing ....................................... 286
Storage location ............................ 286
Stowing .......................................... 286
Technical data ............................... 286
EmergencyT ensioningDevices
Activation ......................................... 50
Emission scontrol
Service and warranty information .... 24
Engine
Check Engine warning lamp ........... 207
Displa ymessage ............................ 190
ECO start/stop function ................ 118
Engine number ............................... 290
Irregula rrunning ............................ 120
Jump-starting ................................. 253
Starting problems .......................... 120
Starting the engine with the
SmartKey ....................................... 118
Starting with KEYLESS-GO ............. 118
Switching off .................................. 131
Tow-starting (vehicle )..................... 258
Engine electronics
Notes. ............................................ 288
Problem (malfunction) ................... 120
Engine oil
Adding ........................................... 235
Ad

ditives ........................................ 293
Checking the oill evel ..................... 234
Checking the oill evel using the
dipstick .......................................... 234
Displa ymessage ............................ 191
Filling capacity ............................... 293
Generaln otes ................................ 292
Notesa boutoilgrade s................... 292
Notesono illevel/consumption .... 234
Temperature (on-board computer,
Mercedes-AMGS LC 43) ................ 175
Entering an address
see also Digital Operator's Man-
ual.................................................. 211
ESP
®(ElectronicS tability Pro-
gram)
AMG menu (on-board computer) ... 175
Characteristics ................................. 61
Index9

Deactivating/activating (except
SLC 43 AMG)................................... 61
Deactivating/activating
(Mercedes-AMG SLC 43) ................. 62
Display message ............................ 179
Function/note s................................ 60
Generaln otes .................................. 60
Important safety information ........... 60
Warning lamp ................................. 205
ETS/4ETS (ElectronicT raction Sys-
tem) ...................................................... 60
Exhaustc heck................................... 134
Exhaustp ipe (cleaning instruc-
tions) .................................................. 243
Exterior lighting
Setting options ................................ 95
see Lights
Exterior mirrors
Adjusting ......................................... 91
Dipping (automatic) ......................... 92
Folding in when locking (on-board
computer) ...................................... 174
Folding in/out (automatically )......... 91
Folding in/out (electrically) ............. 91
Outofp osition (troubleshooting )..... 92
Storing settings (memory func-
tion) ................................................. 93
Storing the parking position ............. 92
Eyeglassesc ompartment ................. 220
F
Favorites
Overview ........................................ 213
Filler cap
see Refueling
Fillin gcapacitie s(Technical data) ... 290
First-aidk it......................................... 244
Flat tire
MOExtended tire s.......................... 247
Preparing the vehicl e..................... 246
TIREFIT kit ...................................... 247
see Emergency spare wheel
Floormats ........................................... 232
Frequencies
Mobil ephone ................................. 288
Two-way radio ................................ 288 Fuel
Additives ........................................ 292
Consumption statistics .................. 166
Displaying the current consump-
tion ................................................ 166
Displaying the rang e...................... 166
Driving tip s.................................... 134
Fue lgauge ....................................... 32
Grade (gasoline )............................ 291
Important safety notes .................. 291
Problem (malfunction) ................... 131
Refueling ........................................ 129
Tank content/reserve fue l............. 291
Fue lfille rflap
Opening ......................................... 130
Fue llevel
Calling up the rang e(on-board
computer) ...................................... 166
Fue ltank
Capacity ........................................ 291
Problem (malfunction) ................... 131
Fus eallocatio nchart (vehicl etool
kit) ...................................................... 245
Fuses
Allocation chart ............................. 258
Before changing ............................. 258
Fusebox in the engine compart-
ment .............................................. 259
Fus ebox in the trunk ..................... 259
Important safety notes .................. 258G
Garaged ooro pener
Clearing the memory ..................... 231
Generaln otes ................................ 228
Important safety notes .................. 228
Opening/closing the garag edoor..2 30
Problems whe nprogramming ........2 30
Programming (button in the rear-
view mirror) ................................... 229
Synchronizing the rolling code ....... 229
Gear indicator (on-board com-
puter, Mercedes-AMG SLC 43) ......... 175
Genuine parts ...................................... 23
Glove box ...........................................2 19
10Index

Protecting the environment
General notes
HEnvironmental 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 amanner
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:
Roperating conditionsofy our vehicle
Ryour personal driving style
You can influence both factors. You should
bear the following in mind:
Operating conditions:
Ravoid short trips as these increase fuel con-
sumption.
Ralways make sure that the tire pressures
are correct.
Rdo not carry any unnecessary weight.
Rremove roof racks once you no longer need
them.
Rar egularly serviced vehicle will contribute
to environmental protection. You should
therefore adhere to the service intervals.
Ralways have service work carried out at a
qualified specialist workshop.
Personal driving style:
Rdo not depress the accelerator pedal when
startin gthe engine.
Rdo not warm up the engine when the vehicle
is stationary.
Rdrive carefully and maintain asafe distance
from the vehicle in front.
Ravoid frequent, sudden acceleration and
braking.
Rchange gear in good time and use each gear
only up to Ôof its maximum engine speed.
Rswitch off the engine in stationary traffic.
Rkeep an eye on the vehicle's fuel consump-
tion.
Environmental concerns and recom-
mendations
Wherever the operating instructions require you
to dispose of materials, first try to regenerate or
re-use them. Observe the relevant environmen-
tal rules and regulations when disposing of
materials. In this way you will help to protect the
environment.
Genuine Mercedes-Benz parts
HEnvironmental note
Daimler AG also suppliesr econditioned major
assemblies and parts which are of the same
quality as new parts. They are covered by the
same Limited Warranty entitlements as new
parts.
!Air bags and Emergency Tensioning Devi-
ces, as well as control units and sensors for
these restraint systems, may be installed in
the following areas of your vehicle:
Rdoors
Rdoor pillars
Rdoor sills
Rseats
Rcockpit
Rinstrumentc luster
Rcenter console
Do not install accessories such as audio sys-
tems in these areas. Do not carry out repairs or welding. You could impair the operating
efficiency of the restraint systems.
Have aftermarket accessories installed at a
qualified specialist workshop.
You could jeopardize the operating safety of
your vehicle if you use parts, tires and wheels as
well as accessories relevant to safety which
have not been approved by Mercedes-Benz. This
could lead to malfunction sinsafety-relevant
Genuine Mercedes-Benz parts23
Introduction
Z

iYou can startthe engin eintransmission
position jand i.
Starting procedur ewith th eSmartKey
To star tthe engin eusing the SmartKey instead
of KEYLESS-GO, pull the Start/Stop button out
of the ignition lock.
XTurn the SmartKey to position 3in the igni-
tion lock (Ypage 116)a nd release it as soon
as the engin eisrunning.
Using KEYLESS-GO to start th eengine
The Start/Stop button can be used to star tthe
vehicle manually without insertin gthe SmartKey
int ot he ignition lock .The Start/Stop button
must be inserted in the ignition lock and the
SmartKey must be in the vehicle. This mode for
startin gthe engin eoperates independently of
the ECO start/sto pautomatic engin estar tfunc-
tion.
XDepress the brakep edal and keep it
depressed.
XPress the Start/Stop button once
(Ypage 116).
The engin estarts.
Pulling away
Genera lnotes
GWARNING
If the engin espeed is above the idling speed
and you engage transmission position Dor R,
the vehicle could pull away suddenly. There is
ar isk of an accident.
When engagin gtransmission position Dor R,
always firmly depresst he brakepedal and do
not simultaneously accelerate.
!Change gear in good tim eand avoid spin-
nin gthe wheels. You could otherwise damage
the vehicle.
Depress the accelerator carefully when pulling
away.
The vehicle lock scentrally onc eyou have pulled
away. The locking knobs in the doors drop down.
You can open the doors from the inside at any
time. You can also deactivate the automatic locking
feature (
Ypage 173).
It is only possible to shift the transmission from
position jto the desired position if you
depresst he brakep edal. Only the nisthe shift
lock released.
iUpshifts tak eplace at higher engin espeeds
afte rac old start. This helps the catalytic con-
verter to reach its operating temperature
more quickly.
Information on the automatic release of the
electric parking brake(
Ypage 133).
Hill start assist
Hill star tassist helps you when pulling away
forwardorinr everse on an uphill gradient. It
holds the vehicle for ashortt imea fteryou have
removed your foot from the brakep edal. This
gives you enough tim etomove your foot from
the brakep edal to the accelerator pedal and to
depressitb eforethe vehicle begins to roll.
GWARNING
After ashortt ime, hill star tassist will no lon-
ger brakey our vehicle and it could roll away.
There is arisk of an accident and injury.
Therefore, quickly move your foot from the
brakep edal to the accelerator pedal. Never
leave the vehicle when it is held by hill start
assist.
Hill star tassist is not active if:
Ryou are pulling away on alevel road or on a
downhill gradient
Rthe transmission is in position i
Rthe electric parking brakeisapplied
RESP®is malfunctioning
ECO start/stop function
Introduction
The ECO start/sto pfunction switches the
engin eoff automatically if the vehicle is stopped
under certain conditions.
The engin estarts automatically when the driver
want stop ull away again. The ECO start/stop
function thereby helps you to reduce the fuel
consumption and emissions of your vehicle.
118Driving
Driving and parking

ANeutral
Do not shift the transmission toA
whil edriving .The automatic trans-
mission could otherwis ebedam-
aged.
No powe ristransmitted fromt he
engine to the drive wheels.
Releasing the brake peda lwilla llow
yo utom ovet he vehicl efreely, e.g .to
push it or tow it.
If ESP
®is deactivated or faulty: shift
the transmission to position Aif
the vehicl eisindangerofs kidding,
e.g .oni cy roads.
!Coasting in neutral imay
cause damage to the drive train.
7Drive
The automatic transmission changes
gear automatically. All forward gears
ar ea vailable.
Driving tips
Changin ggear
The automatic transmission shifts throug hthe
individual gear sautomaticall ywhenitisint rans-
mission position h.Thisa utomatic gear shift-
ing behavio risdetermine dby:
Rthe selecte ddrive program
Rthe positio nofthe accelerator pedal
Rthe roa dspeed
Accelerator peda lposition
Your style of driving influences how the auto-
matic transmission shifts gear:
Rlittle throttle :early upshifts
Rmor ethrottle :lat eu pshifts
Kickdown
Use kickdow nfor maximum acceleration.
XDepres sthe accelerator peda lbeyond the
pressure point.
The automatic transmission shifts to alower
gear depending on the engine speed.
XEas eoff the accelerator peda lonce the
desired speed is reached.
The automatic transmission shifts back up.
Drive programs
Drive program C(Comfort)
In urba ntraffica nd stop-start traffic, drive pro-
gram Cis recommended.
Driv eprogram Cis characterized by the follow-
ing:
Rthe vehicl edelivers comfortable, economical
handling characteristics.
Rthe vehicl epulls away mor egently in forward
and revers egears ,unless the accelerator
peda lisdepressedf ully.
Rthe vehicl ehasimproved driving stability, for
exampl eonslipperyroads urfaces.
Roptima lfue lconsumption resulting fromt he
automatic transmission shifting up sooner.
The vehicl eisdriven in the lo wengine speed
range and the wheels ar elesslikel ytos pin.
Rth es uspension exhibits comfortabl edam ping
settings (adaptive damping system onl yin
vehicles with AMG RIDE CONTROL sports
suspension).
Rthe steering exhibits comfortabl esteering
characteristics.
Drive program S(Sport)
Driv eprogram Sis characterized by the follow-
ing:
Rthe vehicl eexhibits sporty driving character-
istics.
Rthe vehicl epulls away in first gear.
Rthe automatic transmission shifts up later.
The fuel consumption possibl ybeing higher
as aresul toft he later automatic transmission
shift points.
Automatict ransmission125
Driving andparking
Z

Rthe suspensionexhibits fir mdamping set-
ting s(vehicle switha dapt ive damping system
or AMG sports suspension).
Rthe steering exhibits sporty steering charac-
teristics.
Drive program S+ (Sport Plus)
Drive program S+is characterized by the fol-
lowing:
Rthe vehicl eexhibits particularly sporty driving
characteristics.
Rthe vehicl epulls away in first gear.
Rthe automatic transmission shifts up later.
The fuel consumption possibl ybeing higher
as aresul toft he later automatic transmission
shift points.
Rthe suspensio nexhibits particularly firm
damping setting s(vehicle switha dapt ive
damping systemorA MG sports suspension).
Rthe steering exhibits sporty steering charac-
teristics.
Rthe ECO start/stopfunctio nisn ot available.
Drive program I(Individual)
In drive program Ithe following propertie softhe
drive progra mcan be selected:
Rthe drive (engine and transmission manage-
ment)
Rthe suspensio n(vehicle switha dapt ive damp-
ing systemorA MG sports suspension)
Rthe steering
Rthe availability of the ECO start/sto pfun ction
Informatio nabout configurin gdrive program I
with the multimedia systemc an be found in the
Digita lOperator' sManual.
Drive program E(Econom y)
Drive program Eis characterized by the follow-
ing:
Rthe vehicl eexhibits comfortable, economical
handling characteristics.
Rthe vehicl epulls away mor egently in forward
and revers egears ,unles sthe accelerator
peda lisdepresse dfully.
Rthe vehicl ehasimproved drivin gstability, for
exampl eonslipperyroads urfaces.
Roptimal fuel consumption resulting fromt he
automatic transmission shiftin gupsooner. Th
ev ehicl eisd riven in the lo wengine speed
range and the wheels ar elesslikel ytos pin.
Rthe suspensio nexhibits comfortabl edam ping
setting s(vehicle switha dapt ive damping sys-
tem or AMG sports suspension).
Rdurin gdeceleration, the engine is disconnec-
ted fromt he drive train. Th evehicl euses
kinetic energy and consumes less fuel (coast-
ing mode).
Rthe steering exhibits comfortabl esteering
characteristics.
Manual gear shifting
General notes
Yo uc an change gear yourself using the steering
whee lpaddl eshifters. Th etransmission must be
in position hto do this.
Depending on which steering whee lpaddl e
shifter is pulled ,the automatic transmission
immediatel yshifts into the next gear down or
up ,ifp ermitted.
To us emanualshifting, yo uhavet wo options:
Rtemporary setting
Rpermanent setting
If yo uactivate manua lgears hifting, the multi-
functio ndisplay will sho wthe current gear
instea doftransmission position h.
If manua lgears hiftin gisd eactivated ,the gears
will be selected automatically.
Temporary setting
XTo activate: shift the selector lever to h.
XPull steering wheelpaddl eshifter :or;.
The temporary setting is active for acertain
amount of time. Under certai nconditions ,the
minimum amount of tim eisextended, e.g .inthe
126Automati ctransmission
Driving an dparking

Drivingtips
General notes
Important safet ynotes
GWARNING
If you switch of fthe ignition whil edriving,
safety-relevant function sare only available
wit hlimitations, or no tatall. Thi scould affect,
fo re xample, th epowe rsteerin gand th ebrake
boostin geffect. You will require considerably
more effort to steer and brake .There is arisk
of an accident.
Do no tswitch of fthe ignition whil edriving.
GWARNING
If you operat emobile communication equip -
men twhen driving, you may be distracted
from th etraffic situation .You could also los e
contro lofthevehicle. There is ariskofa n
accident.
Only operat ethise quipmen twhen th evehicle
is stationary.
Observ ethe lega lrequirements fo rthe country
in whic hyou are driving. Some jurisdiction spro-
hibi tthe driver from usin gamobile phone whil e
drivin gavehicle.
If you mak eacallw hiled riving, always use
hands-free mode. Only operat ethe telephon e
when th etraffic situation permits. If you are
unsure ,pull over to asafel ocation and stop
befor eoperatin gthe telephone.
Bear in min dthatatas peed of only 30 mph
(approximately 50 km/h), th evehicle cover sa
distanc eof44f t(approximately 14 m)per sec-
ond.
Drive sensibly –save fuel
Observe the following tips to save fuel:
RThe tires should always be inflated to the rec-
ommended tire pressure.
RRemove unnecessary loads.
RWarm up the engin eatlow engin espeeds.
RAvoid frequenta cceleration or braking.
RObserve the servicei ntervals in the Mainte-
nanc eBooklet or in the servicei nterval dis-play. Have all the maintenanc
ework 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
GWARNING
Drinkin gand driving and/or takin gdrugs and
driving are very dangerous combinations.
Even asmall amount of alcohol or drugs can
affect your reflexes, perceptions and judg-
ment.
The possibility of aserious 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
GWARNING
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. Inhaling
these exhaust gases leads to poisoning. There
is ar isk of fatal injury. Thereforen ever leave
the engin erunning in enclosed spaces with-
out sufficientv entilation.
Certain engin esystems are designed to keep
the level of poisonous component sinexhaust
fumes within legal limits.
These systems only work at peak efficiency if
they are serviced exactly in accordance with the
manufacturer's specifications .Always have
work on the engin ecarried out at aqualified
specialist workshop. Mercedes-Benz recom-
mends that you use an authorized Mercedes-
BenzC enter for this purpose. In particular, work
relevant to safety or on safety-related systems
must be carried out at aqualified specialist
workshop.
The engin esettings must not be changed under
any circumstances. Furthermore, all specific
servicew ork must be carried out at regular
intervals and in accordance with the Mercedes-
Benzs ervicer equirements. Details can be found
in the Maintenance Booklet.
134Driving tips
Driving and parking

ECO display
The ECO display showsyou how economical
your driving style is. The ECO display assists you
in achievin gthe mos teconomical driving style
for th eselecte dsettings and prevailingc ondi-
tions .Your driving style can significantly influ-
enc ethe vehicle's consumption.
:Acceleration
;Coasting
=Constant
?Additional range achieved
Range ?is shownu nderBonus
fr.Startand
represents th eadditional range achieve dsince
th eb eginnin gofthejourney as aresult of an
adapted driving style.
If th efuel leve lhas dropped int othe reserve
range, the FuelLow
message is shownint he
multifunction display instead of range ?.The
8 warning lamp in th einstrumen tcluster
also lightsup(
Ypage 207). The ECO display consistsoft
hree sections ,with
an inner and outer area. The sections corre-
spondtot hefollowingt hree categories:
:Acceleration (evaluationofall accel-
eration processes):
Rth eo uter area fills up and th einner
area lightsupg reen: moderate
acceleration, especiall yathigher
speeds
Rth eo uter area empties and the
inner area is gray: sporty acceler-
ation
;Coasting (evaluationofall decelera-
tio np rocesses):
Rtheo uter area fills up and th einner
area lightsupg reen: anticipatory
driving ,kee pingy our distanc eand
early release of th eaccelerator.
The vehicle can coas twithout use
of th ebrakes.
Rtheo uter area empties and the
inner area is gray: frequenth eavy
braking
=Constant (continuous evaluation
ove rthe entire journey):
Rtheo uter area fills up and th einner
area lightsupg reen: constant
speeda nd avoidanc eofunneces-
sary acceleratio nand deceleration
Rtheo uter area empties and the
inner area is gray: fluctuationsi n
speed
The three inner areas display th ecurren tdriving
style and light up green as aresult of aparticu-
larly economical driving style. Dependingont he
driving situation, up to two areas may light up
simultaneously.
At th ebeginnin gofthejourney, th ethree outer
areas are emptya nd fill up asaresult of eco-
nomical driving .Ahigher leve lindicates amore
economical driving style. If th ethree outer areas
are completely fille datthesame time, th edriver
has adopted th emoste conomical driving style
for th eselecte dsettings and prevailingc ondi-
tions .The ECO display border lightsu p.
The ECO display does no tindicat ethe actual fuel
consumption. The additionally achieve drange
displayed under Bonus fr. start
does not
indicat eafixed consumptio nreduction.
Driving tips135
Driving and parking
Z

Menus and submenus
Menu overview
Using the=or; button on the steering
wheel, open the menu bar.
Operating the on-board compute r(
Ypage164).
Depending on the vehiclee quipment, you can
select the following menu:
RTripmenu (Ypage1 66)
RNavimenu (navigatio ninstructions)
(Ypage1 67)
RAudiomenu (Ypage168)
RTelmenu (telephone) (Ypage169)
RDriveAssistmenu (assistance)
(Ypage1 70)
RServ.menu (Ypage171)
RSett.menu (settings) (Ypage172)
RAMGmenu (Mercedes-AMG SLC 43)
(Ypage1 75)
Trip menu
Standard display
XPress and hold the %button on the steer-
ing wheelu ntil theTripmenu with trip odom-
eter :and odometer ;appears.
Trip computer "From Start" or "From
Reset"
:Distance
;Driving time
=Average speed
?Average fuel consumption
XPress the =or; button on the steering
wheeltos elect theTripmenu.
XPress the 9or: button to select
From Startor From Reset.
The values in the From
Startsubmenu are cal-
culated from the start of ajourney whilst the
values in the From Reset
submenu are calcu-
lated from the las ttime the submenu was reset
(
Ypage1 67).
In the following cases ,the trip compute risauto-
matically reset From Start
:
Rthe ignitionhas been switched off for more
than four hours.
R999 hour shave bee nexceeded.
R9,999 milesh ave been exceeded.
When 9,999 hours or 99,999 milesh ave been
exceeded, the trip computer is automatically
reset From Reset
.
ECOd isplay
XPress the =or; button on the steering
wheeltos elect theTripmenu.
XPress the 9or: button to select ECODISPLAY.
If the ignitio nremains switched off for longer
than four hours,t he ECO display willbea uto-
matically reset.
For more information on the ECO display ,see
(
Ypag e135).
Displayingt he range and current fuel
consumption
XPress the =or; button on the steering
wheeltos elect theTripmenu.
XPress9or: to select the display with
approximate range :and current fuel con-
sumption ;.
Approximate range :that can be covered is
calculated according to you rcurrent driving
166Menus and submenus
On-board computer and displays

Important notes on tire pressure
GWARNING
If th etirep ressur edrops repeatedly, th e
wheel, valv eortirem ay be damaged. Tir e
pressur ethatist oolow may result in atire
blow-out .Ther eisar iskofana ccident.
RCheckthe tire for foreign objects .
RCheckwhether th ewhee lislosing air or th e
valv eisl eaking .
If you are unable to rectify th edamage, con-
tac taq ualified specialist workshop.
GWARNIN G
If you fit unsuitable accessories onto tire
valves, th etirev alves may be overloaded and
malfunction ,whic hc an caus etirep ressur e
loss .Due to their design ,retrofitte dtirep res-
sur em onitors keep th etirev alveo pen .This
can also result in tire pressur eloss .Ther eisa
ris kofana ccident.
Only screw th estandard valv ecap or other
valv ecapsa pprove dbyMercedes-Ben zfor
your vehicl eontot he tire valve.
Use asuitable pressur egauge to chec kthe tire
pressure. The outer appearanc eofatired oes
no tp ermit any reliable conclusio nabout th etire
pressure. On vehicles equipped wit hthe elec -
tronic tire pressur emonitor, th etirep ressur e
can be checke dintheon-board computer.
The tire temperature and pressur eincreas e
when th evehicl eisinm otion.This is dependen t
on th edriving spee dand th eload.
Therefore, you should only correc ttirep res-
sures when th etires are cold.
The tires are cold:
Rif th evehicl ehas been parked wit hthe tires
out of direct sunligh tfor at least three hour s
and
Rif th evehicl ehas no tbeen driven further than
1m ile (1. 6km)
The tire temperature changes depending on th e
outside temperature, th evehicl espee dand th e
tire load. If th etiret
em p
erature changes by
18 ‡(10 †), th etirep ressur echanges by
approximately 10 kP a(0.1b ar/1.5 psi) .Take
this int oaccoun twhen checkin gthe pressur eof
warm tires .Onlyc orrect thet irep ressur eifitisto
ol ow for th ecurren toperating conditions. If
you chec kthe tire pressur ewhen th etires are
warm ,the resulting value will be higher than if
th et ires were cold. This is normal. Do no t
reduce th etirep ressur etothevalue specifie d
for cold tires .The tire pressur ewould otherwise
be to olow.
Observ ethe recommended tire pressures for
cold tires :
Ron theTirea nd Loading Information placard
on th eB-pillar on th edriver' sside
Rin th etirep ressur etable on th einside of th e
fuel filler flap
Rprinte dinyellow on th erim of th eemer-
gency/collapsible spar ewhee l(dependin gon
vehicl eequipment)
Underinflated or overinflated tires
Underinflated tires
GWARNIN G
Tires wit hpressur ethatist oolow can over-
heat and burs tasaconsequence .Inaddition ,
they also suffer from excessiv eand/o rirreg-
ular wear, whic hcan severely impair th ebrak -
ing properties and th edriving characteristics .
Ther eisar iskofana ccident.
Avoid tire pressures that are to olow in all th e
tires ,includin gthe spar ewheel.
Underinflated tires may:
Roverheat, leadin gtotired efects
Radversely affec thandlin g
Rwear excessively and/o runevenly
Rhav eana dverse effec tonfuel consumption
Overinflated tires
GWARNIN G
Tires wit hexces sively high pressur ecan burs t
because they are damaged mor eeasil yby
road debris, pothole setc.Ina ddition ,the y
also suffer from irregular wear ,whic hc an
severely impair th ebraking properties and th e
driving characteristics .Ther eisar iskofa n
accident.
Tire pressure265
Wheels and tires
Z