width MERCEDES-BENZ SLC ROADSTER 2018 Owner's Manual

Distance PilotDISTRONICc an detect vehicles
when cornerin gislimited. Your vehicl emay
brake unexpectedly or late.
Vehicle straveling on adifferen tline
Distance Pilo tDISTRONICm aynot detect vehi-
cle sw hich ar enot drivin ginthe middl eoftheir
lane. The distance to the vehicl einfront will be
too short.
Othe rvehicle schangin glanes
Distance Pilo tDISTRONICh asnot detecte dthe
vehicl ecutting in yet. The distance to thisv ehi-
cle will be too short.
Narrow vehicles
Distance Pilo tDISTRONICh asnot ye tdetected
the vehicl einfront on the edge of the road
because of its narrow width .The distance to the
vehicl einfront will be too short.
Obstructions and stationary vehicles
Distance Pilo tDISTRONICd oesn ot brake for
obstacle sorstationar yvehicles. If, for example,
the detecte dvehicl eturns acorne rand an
obstacle or stationar yvehicl eisr evealed, Dis-
tance Pilo tDISTRONICw illn ot brake for them.
Crossin gvehicles
Distance Pilo tDISTRONICm aymistakenly
detect vehicles thata recrossing your lane.
If yo uactivate Distance Pilo tDISTRONICu nder
the following conditions, the vehicl ecould pull
away unintentionally:
Rat trafficl ights with crossing traffic, for exam-
ple
Rif there is avehicl einf ront after acrossing
with the HOLD functio nactivated
Driving system s147
Driving an dparking
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Use the guidelines only for orientation.
Approach objects no further than the bottom-
most guideline.
:Yellowg uide line at adistance of approx-
imately 13 ft (4.0 m) from the rear of the
vehicle
;White guide line without steering input –
vehicle width including the exterior mirrors
(static)
=Yellowg uide line for the vehicle width
including the exterior mirrors, at the current
steering wheel angle (dynamic)
?Yellowl ane marking the course the tires will
take at the current steering wheel angle
(dynamic)
AYellowg uide line at adistance of approx-
imately 3ft(1.0 m) from the rear of the vehi-
cle
BVehicle center axle (marker assistance)
CBumper
DRed guide line at adistance of approximately
12 in (0.30 m) from the rear of the vehicle
The guide lines are shown when the transmis-
sion is in position k.
The distance specifications only apply to
objects that are at ground level.
:Front warning display
;Additional measurement operational readi-
ness indicator for Parking Assist
PARKTRONIC
=Rear warning display
Vehicles with Parking Assist PARKTRONIC:
when Parking Assist PARKTRONIC is opera-
tional (
Ypage 150), additional measurement
operational readiness indicator ;appears in
the multimedia system. If the Parking Assist
PARKTRONIC warning displays are active or
light up, warning displays :and =are also
active or light up correspondingly in the multi-
media system.
"Reverse parking" function
Backing up straight into aparking space
without steering input
:White guide line without steering input –
vehicle width including the exterior mirrors
(static)
;Yellowg uide line for the vehicle width
including the exterior mirrors, at the current
steering wheel angle (dynamic)
156Driving systems
Driving and parking

=Yellow guide line atadistance of approx-
imately 3ft(1.0m)f rom the rear of the vehi-
cle
?Red guide line at adistance of approximately
12 in (0.30 m) from the rear of the vehicle
XMake sure that the rear view camer ais
switched on (Ypage 155).
The lane and the guide lines are shown.
XWith the help of white guide line :,check
whether the vehicle will fit int othe parking
space.
XUsingw hite guide line :asag uide, carefully
back up until you reach the end position.
Red guide line ?is the natthe end of the
parking space. The vehicle is almost parallel
in the parking space.
Reverse perpendicular parking with steer-
ing input
:Parking space marking
;Yellow guide line for the vehicle width
including the exterior mirrors, at the current
steeringw heel angle (dynamic)
XDrive past the parking space and bringt he
vehicle to astandstill.
XMake sure that the rear view camer ais
switched on (Ypage 155).
The lane and the guide lines are shown.
XWhile the vehicle is at astandstill, turn the
steeringw heel in the direction of the parking
space until yellow guide line ;reaches park-
ing space marking :.
XMaintain the steeringi nput and reverse care-
fully.
:Yellow guide line for the vehicle width
including the exterior mirrors, at the current
steeringw heel angle (dynamic)
XStop the vehicle when it is almost exactly in
frontofthe parking space.
The white lane should be as close to parallel
with the parking space marking as possible.
:Whiteg uide line at the current steeringi nput
;Parking space marking
XTurn the steeringwheel to the center position
while the vehicle is stationary.
:Red guide line at adistance of approximately
12 in (0.3 0m)from the rear of the vehicle
;Whiteg uide line without steeringi nput
=Endofp arking space
Driving systems157
Driving and parking
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Checkwheelsand tires for damag eatleast once
am onth .Checkw heelsa nd tires after driving
off-road or on roug hroads. Damaged wheels
can caus ealoss of tir epressure. Pay particular
attentio ntodamagesucha s:
Rcutsint hetires
Rpunctures inthet ires
Rtears inthet ires
Rbulges on tires
Rdeformatio norsevere corrosiononw heels
Regularly check thetiret read dept hand the
conditio nofthetread across th ewhole widthof
th et ire(
Ypage 261). Ifnecessary, tur nthe
frontw heelstof ull lockino rder to inspectt he
inner sideof thetires urface.
All wheelsm ust haveavalvec ap to protect the
valv eagainst dirtand moisture. Do no tmount
anythingo ntot he valv eother than th estandard
valv ecap or other valv ecaps approved by
Mercedes-Ben zfor your veh icle.Don otuse any
other valv ecaps or systems ,e.g.t irep ressure
monitorin gsystems.
Regularly check thepressureofa llth et ires par-
ticularly priortol ongt rips. Adjus tthe tirep res-
sure as necessary (
Ypage 263).
Observ ethe note sont heemergenc yspare
wheel (
Ypage 285).
The servic elife of tires depends, amon gother
things, on th efollowin gfactors:
Rdriv ing style
Rtirep ressure
Rdist ancecovered
Notes on tir etread
GWAR NING
In suff icient tir etread will reduce tir etraction.
The tir eisnol ongerabletodissipat ewater.
This mean stha tonw et road surfaces ,the risk
of hydroplaning increases, inparticular where
speedisn otadapted to suit th edriving con-
dit ions. Thereisar iskofa cciden t.
If th et irep ressureist oohigh or to olow, tires
may exhibit different leve lsof wear at differ-
entl ocations on th etiret read. Thus,y ou
should regularly check th etread dept hand
th ec onditio noft hetread across th eentire
widt hofa lltires.
Minimum tir etread depthf or:
RSummer tires: âin(3 mm)
RM+S tires: ãin(4 mm)
For safety reasons, replace th etires before
th el egally prescribe dlimit for th eminimum
tir et read depthisr eached.
Marking:shows wheret hebar indicator for
tread wear (arrow) is integrate dintot he tire
tread.
Treadwear indicators (TWI)a re required by law.
Six indicators are positione donthetiret read.
They are vis ibleonce atread depthofa pprox-
imately áin (1. 6mm) has been reached. If this
is th ecase, th etireissow orn that it must be
replace d.
Selecting, mounting and replacing
tires
ROnly moun ttires and wheelsoft hesame type
and make.
Exception: itis permissible to moun tadiffer-
entt ype or mak eintheevent of aflat tire.
Observ ethe "MOExtended tires (tires with
run-flat characteristics)" section
(
Ypage 247).
ROnly moun ttires of th ecorrec tsizeo ntot he
wheels.
RBreak inne wt ires at moderat espeeds for the
first 60 mile s(10 0k m). The ne wtires only
reac htheirfull performance after this dis-
tance.
RDo no tdrivew itht ires whic hhave to olittle
tread depth. This significantly reduces the
traction on wet road s(hydroplaning).
RReplacet hetires after six years at th elatest,
regardless of wear.
Operation261
Wheels and tires
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Quality grades can be found,where applicable,
on the tire sidewall between tread shoulde rand
maximum sectio nwidth.
Example:
RTreadwear grade: 200
RTractiongrade: AA
RTemperature grade: A
All passengerc ar tires must conform to the stat-
utory safety requirements in additio ntothese
grades.
iThe actua lvalues for tires are vehicle-spe-
cific and may deviate from the values in the
illustration.
Treadwear
The treadwea rgrad eisac omparativ erating
based on the wea rrate of the tire whe ntested
unde rcontrolled conditions on aspecified U.S.
government course. For example, atire graded
150 would wea rone and one-half times as well
on the government test track as atire graded
100.
The relative performance of tires depends upon
the actua lconditions of their use ,however, and
may depart significantly from the norm duet o
variations in driving habits, service practices
and differences in road characteristics and cli-
mate.
Traction
GWARNING
The tractio ngrad eassignedtot his tire is
based on straight-ahead braking traction
tests, and doesn ot include acceleration, cor-
nering, hydroplaning ,orpeaktractio nchar-
acteristics.
!Avoid wheelspin. Thisc an leadtodamage to
the driv etrain.
The tractio ngrades –from highest to lowest –
are AA, A, Band C. Thoseg rades represent the
tire's ability to stop on wet pavement as meas-
ure dunde rcontrolled conditions on specified
government test surfaces of asphal tand con-
crete. Atire marked Cmay have poort raction
performance.
The safe speedonaw et, snow coveredoricy
road is always lower than on dry road surfaces. You should pay speciala
ttentiontoroadc ondi-
tions whe ntemperatures are around freezing
point.
Mercedes-Benz recommends aminimum tread
depth of ãin (4 mm )onallfour winter tires.
Observe the legally required minimum tire tread
depth (
Ypag e261). Winter tires can reduce the
braking distance on snow-covered surfaces in
comparisonw iths ummer tires. The braking dis-
tance is stil lmuch furthe rthan on surfaces that
are not icy or coveredw iths now. Take appro-
priate care whe ndriving.
Temperature
GWARNING
The temperature grad efor this tire is estab-
lished for atire that is properly inflated and
not overloaded. Excessiv espeed, underinfla-
tion, or excessive loading ,eithers eparately or
in combination, can cause excessive heat
build-up and possibl etire failure.
The temperature grades are A(the highest),B ,
and C, representing the tire's resistance to the
generation of heata nd its ability to dissipate
heatw hent ested unde rcontrolled conditions
on aspecified indoor laboratory test wheel. Sus-
taine dhight emperature can cause the material
of the tire to degenerate and reduce tire life, and
excessive temperature can leadtos udden tire
failure. The grad eCcorresponds to aleve lof
performance which al lpassengerc ar tires must
meet unde rthe Federal Motor Vehicle Safety
Standard No. 109. Grades BandArepresent
higher levels of performance on the laboratory
test wheel than the minimum required by law.
274Al la bout wheelsa nd tires
Wheels and tires

Tire labeling
Overview
:Unifor mTireQ ualit yGradin gStandard
(Ypage 278)
;DOT, Tire Identification Number
(Ypage 277)
=Maximum tire load (Ypage 277)
?Maximum tire pressure (Ypage 266)
AManufacturer
BTire material (Ypage 278)
CTire size designation, load-bearing capacity
and spee drating (Ypage 275)
DLoadi ndex (Ypage 277)
ETire name
The markings describe dabove ar eont he tire in
additio ntothe tire nam e(sales designation) and
the manufacturer's name.
iTire data is vehicle-specific and mayd eviate
fromt he data in the example.
Tire size designation ,loa d-bearing
capacity and speed rating
GWARNING
Exceeding the stated tire load-bearing capa-
city and the approved maximum spee dcould
lead to tire damage or the tire bursting. There is ar iskofa ccident.
Therefore ,onlyu setire types and sizes
approved for your vehicl emodel .Observe the
tire load rating and spee drating required for
your vehicle.
:Tire width
;Nomina laspec tratio in %
=Tire code
?Rimd iame ter
ALoadb earing index
BSpeed rating
General: depending on the manufacturer's
standards ,the size imprinted in the tire wall may
not contain any letters or mayc ontain one letter
thatp recedes the size description.
If there is no letter preceding the size descrip-
tio n(as shown above): these ar epassenger
vehicl etiresa ccording to Europea nmanufac-
turing standards.
If "P "precedes the size description: these are
passenge rvehicl etiresa ccording to U.S. man-
ufacturin gstandards.
If "LT" precedes the size description: these are
light truck tire saccording to U.S. manufacturing
standards.
If "T "precedes the size description: compact
emergency wheels with high tire pressure that
ar eo nlyd esig nedf or temporary us einanemer-
gency.
Tire width: tire width:shows the nominal tire
width in millimeters.
Height-width ratio: aspect ratio;is the size
ratio between the tire height and tire width and
is shown in percent. The aspect ratio is calcula-
ted by dividing the tire width by the tire height.
Tire code: tire code=specifie sthe tire type.
"R "r epresents radial tires; "D" represents diag-
ona ltire s; "
B" represents diagona
lradial tires.
Optionally ,tire sw itham aximum spee dofover
149 mph (24 0km/h )mayhave "ZR" in the size
Alla bout wheels an dtires275
Wheel sand tires
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Speed rating
The speed rating is part of the tire identification.It specifies the speed range for which the tire is
approved.
GVW (Gross Vehicle Weight)
The gross vehicle weight includes the weight of the vehicle including fuel, tools, the spare wheel,
accessories installed, occupants, luggage and
the drawbar noseweight, if applicable. The gross
vehicle weight must not exceed the gross vehi-
cle weight rating GVWR as specified on the vehi- cle identification plate on the B-pillar on the
driver's side.
GVWR (Gross Vehicle Weight Rating)
The GVWR is the maximum permissible gross
weight of afully loaded vehicle (the weight of the
vehicle including all accessories, occupants,
fuel, luggage and the drawbar noseweight, if
applicable). The gross vehicle weight rating is
specified on the vehicle identification plate on
the B-pillar on the driver's side.
Maximu mloaded vehicle weight
The maximum weight is the sum of:
Rthe curb weight of the vehicle
Rthe weight of the accessories
Rthe load limit
Rthe weight of the factory installed optional
equipment
Kilopascal (kPa)
Metric unit for tire pressure. 6.9 kPa corre-
sponds to 1psi. Another unit for tire pressure is
bar. 100 kilopascals (kPa) are the equivalent of
1b ar.
Load index
In addition to the load-bearing index, the load
index may also be imprinted on the sidewallo f
the tire. This specifies the load-bearing capacity
more precisely.
Curb weight
The weight of avehicle with standard equipment
including the maximum capacity of fuel, oil and
coolant. It also includes the air-conditioning sys-
tem and optional equipment if these are instal-
led in the vehicle, but does not include passen-
gers or luggage.
Maximu mload rating
The maximum load rating is the maximum per-
missible weight in kilograms or lbs for which a
tire is approved.
Maximu mpermissible tire pressure
Maximum permissible tire pressure for one tire.
Maximu mload on one tire
Maximum load on one tire. This is calculated by
dividing the maximum axle load of one axle by
two.
PSI (pounds per squarei nch)
Astandard unit of measure for tire pressure.
Aspect ratio
Relationship between tire height and tire width
in percent.
Tire pressure
This is pressure inside the tire applying an out-
ward force to each square inch of the tire's sur-
face. The tire pressure is specified in pounds per
square inch (psi), in kilopascal (kPa) or in bar.
The tire pressure should only be corrected when the tires are cold.
Cold tire pressure
The tires are cold:
Rif the vehicle has been parked with the tires
out of direct sunlight for at least three hours
and
Rif the vehicle has not been driven further than
1m ile (1.6 km)
Tread
The part of the tire that comes into contact with
the road.
Bead
The tire bead ensures that the tire sits securely
on the wheel. There are several steel wires in the
bead to prevent the tire from coming loose from
the wheel rim.
Sidewall
The part of the tire between the tread and the
bead.
All about wheelsa nd tires279
Wheels and tires
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Refrigerant instructionlabel
Example:refrigerant instruction label
:
Symbol
;Refrigerant filling capacity
=Applicabl estandards
?PAG oilp artn umber
AType of refrigerant
Warning symbol :advises yo uabout :
RPossible dangers
RHaving service work carrie doutataq uali fied
specialist workshop
Fillin gcapacities
ModelRefrigerant
Allm odels19.4 ±0.4 oz
(550 ±10g )
ModelPAG oil
All models2.8 oz
80 g
Vehicle data
General notes
Please note that for the specified vehicled ata:
Rthe heights specified may vary asaresul tof
-tires
-load
-condition of the suspension
-optionale quipment
Roptionalequipment reduces the maximum
payload
Dimensions and weights
Model:Opening height
Mercedes-AMG
SLC 4370.75 in
(1797 mm)
All other models70.5 in
(1795 mm)
Missing values were not available at time of
going to print.
Mercedes-AMG
SLC 43
Vehicle length163.1 in (4143 mm)
Vehicle length
whe nopening/clos-
ing the roof
Vehicle width
including exterior
mirrors78.9 in (2006 mm)
Vehicle height51.2 in (1303 mm)
Vehicle height
whe nopening/clos-
ing the roof61.7 in (1566 mm)
Wheelbase95.7 in (2431 mm)
Turning radius
All other models
Vehicle length162.7 in (4133 mm)
Vehicle length
whe nopening/clos-
ing the roof170.2 in (4324 mm)
Vehicle data295
Technical data
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All othermodels
Vehicle width
includin gexteri or
mir rors79.0 in(2006 mm)
Vehicle height
Vehicle height
when opening/clos-
ing th eroof61.0 6in( 1551m m)
Wheelbase95.7 in(2430 mm)
Tu rning radius34.5 ft (10.52m)
296Vehicle data
Technical data