width MERCEDES-BENZ SLS AMG GT ROADSTER 2015 C197 Owner's Manual

Have al
lworkc arried out only by qualified
technicians. Contact an authorized
Mercedes-Benz Center.
Correct use of the sea tbelts G
WARNING
USE SEAT BELTS PROPERLY
R Seat belts can only wor kwhenu sedp rop-
erly. Neve rwearsea tb elts in any other way
than as described in this section, as that
coul dresult in serious injuries in the event
of an accident.
R Each occupant should wea rthei rseatb elt
at al ltimes ,because sea tbelts hel preduce
the likelihood of and potential severity of
injuries in accidents, including rollovers.
The integrated restraint system includes
SRS (driver front ai rbag,k nee bags, front-
passenger front ai rbag,sidei mpact air
bags, hea dairbags) ,Emergency Tension-
ing Device s(ETDs) and sea tbeltf orce lim-
iters .The system is designe dtoenhance
the protection offered to properl ybelted
occupants in certai nfrontal (front ai rbags,
knee bags and ETDs) and sid e(side impact
ai rb ags, hea dairbags and ETDs) impacts
which excee dpreset deployment thresh-
olds.
R Neve rwearthe shoulde rbeltu nde ryour
arm, across your neck or off your shoulder. In af rontal crash ,you rb odyw ould move
too far forward .Tha tw ould increase the
chance of hea dand neck injuries. The seat
bel twould also apply too much force to the
rib sora bdomen, which coul dseverely
injure interna lorgans such as your liver or
spleen.
Adjus tthe sea tbeltsot hat the shoulder
sectio nislocated as clos easpossible to
the middle of the shoulde r(it should not
touch the neck).
R Position the la pbelta slow as possible on
your hip sand not across the abdomen. If
the la pbeltisp ositioned across your abdo- men, it coul
dcause serious injuries in a
crash.
R Neve rwears eatb elts over rigi dorbreaka-
ble objects in or on your clothing, such as
eyeglasses, pens, keys etc., as these might
cause injuries.
R Make sur ethe sea tbeltisa lwaysfitted
snugly .Take specia lcare of this whe nwear-
ing loose clothing.
R Neve ruse aseatb eltf or more than one
person at atime. Do not faste naseatb elt
around aperson and anothe rperson or
other objects at the sam etime.
R Seat belts should not be wor ntwisted. In a
crash ,you would not hav ethe ful lwidth of
the sea tbelttod istribute impact forces.
The twisted sea tbelta gainst your body
coul dcause injuries.
R Pregnant women should also always use a
lap-shoulder belt. The la pbeltp ortion
should be positioned as low as possible on the hip stoavoid any possible pressur eon
the abdomen.
R Place the sea tbackrest in apositio nthat is
as uprigh tasp ossible.
R Check your sea tbeltd uring trave ltomake
sur eitisp roperlypositioned.
R Neve rplace your feet on the instrument
panel, dashboard ,oronthe seat. Always
keep both feet on the floo rinfront of the
seat.
R Whe nusing aseatb elttos ecure infant
restraints, toddler restraints, or children in
booster seats, always follow the chil dseat
manufacturer's instructions. G
WARNING
Do not pass sea tbelts over sharp edges. They
coul dtear.
Do not allow the sea tbelttog et caught in the
doo rorint he seatadjustment mechanism.
Thi scoul dd amaget he sea tbelt.
Neve rattemp ttom ake modifications to seat
belts. Thi scoul dimpai rthe effectivenes sof
the sea tbelts. 48
Occupan
tsafetySafety

You can wash the vehicle in an automatic car
wash fro mthe very start.
If the vehicle is very dirty, pre-wash it before
cleaning it in an automatic car wash.
! Never clean your vehicle in
aTouchless
Automatic Car Wash as these use special
cleaning agents. These cleaning agent scan
damage the paintwork or plastic parts.
! When washing your vehicle in
atow-
through car wash, use the SmartKey
instead of the Start/Stop button.
Start the engin eusing the SmartKey.. Move
the transmission to Nwith the E-SELECT
lever .Use the SmartKey to switc hthe
engin eoff again and the nturn the Smart-
Key to position 2.Make sure that you then
leave the SmartKey in position 2.You may
otherwise damage the vehicle, the trans-
missio northe car wash.
Check the transmission position in the
instrumen tcluster.
! Use the E‑SELECT lever to shift the trans-
missio ntoNbefore switching the engine
off .Ify ou open the driver's or front-
passenger door, the transmission remains
in this position for up to 30 minutes if the
SmartKey is in the ignition, even if the
engin eisswitched off .Ifyou do not shift the
transmission to Nusing the E‑SELECT lever
beforehand, it shift sautomatically to park-
ing position Pand lock sthe wheels if the
driver's or front-passenge rdoor is opened
and the engin eisswitched off .This may
damage the vehicle, the transmission or
the car wash.
Observe the information on maneuvering
(Y page 131). !
Before drivin
gintoana utomatic car wash,
make sure that it is suitable for the dimen- sion soft he vehicle. In particular, make
sure that:
R there is enough groun dclearance
betwee nthe vehicle underbody and the
guide rails of the automatic car wash.
R the clearance width of the automatic car
wash is sufficient ,particularly the width
of the guide rails.
R you enter the automatic car wash
straight and in the center of the guide
rails in order to avoid damagin gthe tires
or wheel rims.
Fold in the exterior mirrors befor ethe vehi-
cle is washed. The exterior mirrors could
otherwise be damaged.
! Make sure that:
R the side windows and the roof are com-
pletely closed
R the climat econtrol blower is switched off
R the windshield wiper switc hisatposition
0
The vehicle could otherwise be damaged.
! In portal car washes, the windshield wip-
ers may be move dupthe windshield by the
cleaning brushes when the ignition is
switched off.
Set the Start/Stop button to key position 2
to reset the windshield wipers to their orig-
inal position.
! Preferably use automatic car washes with
adjustable high-pressure pre-cleaning. This corresponds with the specification for the
Cabriolet program. In car washes that use
high water pressures, there is arisk that a
small amount of water may leak int othe
vehicle.
! Cabriolet:
do not treat the vehicle with
hot wax under any circumstances.
After using an automatic car wash, wipe off
wax and drying agent sfromt he windshield
and the wiper blades. This will prevent smears 224
CareMaintenance and care

tions, try to do so slowly and at an obtuse
angle .Otherwise, the tires ,particularl ythe
sidewalls, ma ybedamaged. Note
sonh ighp erformanc etires G
WARNING
Due to the special tir etrea dinc ombination
with the optimize drubbe rcompound ,there is
an increase driskofh ydroplaning and skid-
ding on adam porw etroa dsurface. tir egripis
also noticeabl yreduced at lo woutside tem-
peratures and lo wtireo perating tempera-
tures .The re is ariskofana ccident.
Turn on ESP ®
and adap tyou rd riving style
accordingly .Whent he outside temperature
fall sbelow 10 †, us eM+S tires.
i Different driving style
smaylead to high
tir ew eara nd the tires ma yreach the min-
imum tir etrea ddepth after onl yashort
time. Regula
rcheckin gofwheelsand tires G
WARNING
Damaged tires can cause tir einflatio npres-
sure loss. As aresult, yo ucould lose control of
your vehicle. There is ariskofa ccident.
Check the tires regularly for signs of damage
and replace any damage dtires immediately.
Regularl ycheck the wheels and tires of your
vehicl efor damage at leas tonce amonth ,as
well as after driving off-roa doronrough
roads .Damaged wheels can cause alossof
tir ep ressure. Pa yparticula rattentio ntodam-
ag es ucha s:
R cuts in the tires
R punctures
R tears in the tires
R bulges on tires
R deformatio norseverec orrosio nonwheels Regularl
ycheck the tir etrea ddepth and the
condition of the trea dacros sthe whol ewidth
of the tir e(Ypage 251). If necessary ,tur nt he
front wheels to full lock in order to inspect the
inne rsideoft he tir esurface.
All wheels must have avalve cap to protect
the valv eagain st dirt and moisture. Do not
mount anything onto the valv eother tha nthe
standard valv ecap or other valv ecaps
approved by Mercedes-Benz for your vehicle.
Do not us eany other valv ecapsors ystems,
e.g .tirep ressure monitoring systems.
Regularl ycheck the pressure of al lthe tires
particularl yprior to long trips .Adjust the tire
pressure as necessary (Y page 253).
Th es ervice life of tires depends on the fol-
lowing factors amongst other things:
R driving style
R tirep ressure
R distance covered Tire tread
G
WARNING
Insufficient tir etrea dw illr educ etiret raction.
Th et ireisnol ongera bletod issipate water.
This means tha tonwetroa dsurfaces ,the risk
of hydroplaning increases, in particula rwhere
spee disn ot adapted to suit the driving con-
ditions. There is ariskofa ccident.
If the tir epressure is too high or too low, tires
ma yexhibit different level sofwearatd iffer-
ent locations on the tir etread. Thus ,you
shoul dregularly check the trea ddepth and
the condition of the trea dacros sthe entire
width of al ltires.
Minimum tir etrea ddepth for:
R Summer tires: 00CEin (3 mm)
R M+S tires: 00CFin (4 mm)
For safety reasons, replace the tires before
the legall yprescribe dlimit for the minimum
tir et rea ddepth is reached. Operation
251Wheelsand tires Z

Gross axle weight rating:
the maximumper-
missible weight that can be carried by one
axle (front or rear axle).
To ensure that yourv ehicle does not exceed
the maximu mpermissibl evalues (gross vehi-
cle weight and maximu mgross axle weight
rating), have yourl oaded vehicle (including
driver, occupants, cargo, and full traile rloa dif
applicable) weighed on asuitable vehicle
weighbridge. All about wheels and tires
Uniform Tire Quality Grading Stand-
ards
Overvie wofTire Quality Grading Stand-
ards Uniform Tire Quality Grading Standards are
U.S. government specifications. Theirp ur-
pose is to provid edrivers with uniform relia-
ble information on tire performance data. tire manufacturers have to grade tires using three
performance factors: tread wear 0043,tire trac-
tion 0044and heat resistance 0087.All tires sold
in North America are provided with the cor-
responding quality class mark on the sidewall
of the tire, even though these regulations do
not apply to Canada.
Quality grade scan be found, where applica-
ble, on the tire sidewallb etweenthe tread
shoulder and maximu mtire width. Example:
R Treadwear grade: 200
R Traction grade: AA
R Temperatur egrade: A
All passenger car tires must conform to the
statutory safety requirements in addition to
these grades.
i The actual values for tires are vehicle-
specifi cand may deviate from the values in
the illustration.
Treadwear The treadwear grade is
acomparative rating
basedont he wearrate of the tire when tested
under controlled conditions on aspecified
U.S. government course. For example, atire
grade d150 would wearo ne and one-half
times as wellont he government course as a
tire grade d100.
The relative performance of tires depends
upont he actual conditions of their use, how-
ever, and may depart significantly from the
norm due to variations in driving habits,
service practices and differences in road
characteristics and climate conditions.
Traction G
WARNING
The traction grade assigned to this tire is
basedons traight-ahead braking traction
tests, and does not includ eacceleration, cor-
nering, hydroplaning, or peakt raction char-
acteristics.
! Avoid wheelspin. This can leadtod
amage
to the drive train.
The traction grade s–from highest to lowest –
are AA, A, Band C. Those grade srepresent
the tire's ability to stop on wet pavement as
measured under controlled conditions on
specified government test surfaces of asphalt
and concrete. Atire marked Cmay have poor
traction performance. Alla
bout wheels and tires
263Wheelsand tires Z

Therefore, only use tire types and sizes
approved for your vehicle model. Observe the
tire load rating and speed rating required for
your vehicle. 0043
Tire width
0044 Nominal aspect ratio in %
0087 Tire code
0085 Rim diameter
0083 Load bearing index
0084 Speed rating
i Tire data is vehicle-specific and may devi-
ate from the data in the example.
General: depending on the manufacturer's
standards, the size imprinted in the tire wall
may not contain any letter sormay contain
one letter that precedes the size description.
If there is no letter preceding the size descrip-
tion (as shown above): these are passenger
vehicle tires accordin gtoEuropean manufac-
turing standards.
If "P" precedes the size description :these are
passenger vehicle tires accordin gtoU.S.
manufacturing standards.
If "LT" precedes the size description :these
are light truck tires accordin gtoU.S. manu-
facturin gstandards.
If "T" precedes the size description :these are
compact emergenc yspare wheels at high tire
pressure, to be used only temporarily in an
emergency.
Tire width: tire width0043shows the nominal
tire width in millimeters. Aspect ratio:
aspect ratio0044is the size ratio
between the tire height and tire width and is
shown in percent .The aspect ratio is calcu-
lated by dividing the tire width by the tire
height.
Tire code: tire code0087specifies the tire type.
"R" represent sradial tires; "D" represents
diagonal tires; "B" represent sdiagonal radial
tires.
Optionally, tires with amaximum speed of
over 149 mph (240 km/h) may have "ZR" in
the size description depending on the manu-
facturer (e.g. 245/40 ZR 18).
Rim diameter: rim diameter0085is the diam-
eter of the bead seat, not the diameter of the rim flange. The rim diameter is specified in
inches (in).
Load-bearing index: load-bearing index0083
is an umerical code that specifies the maxi-
mum load-bearing capacity of atire.
Do not overload the tires by exceeding the
specified load limit. The maximum permissi-
ble load can be found on the vehicle's Tire and
Loading Information placard on the B-pillar on the driver's side (Y page 260).
Example:
Load-bearing index 91 indicates amaximum
load of 1,356 lb (615 kg) that the tires can
bear. For further information on the maximum tire load in kilograms and lbs, see
(Y page 267).
For further information on the load bearing
index, see "Load index" (Y page 266).
Speed rating: speed rating0084specifies the
approved maximum speed of the tire.
Regardless of the speed rating, always
observe the speed limits. Drive carefully and
adapt your driving style to the traffic condi-
tions. Summer tires
Index Speed rating
Q up to 100 mph (160 km/h)
R up to 106 mph (170 km/h)All about wheelsa
nd tires
265Wheels and tires Z

GVWR (Gross Vehicl
eWeight Rating)
The GVWR is the maximu mpermitted gross
weight of the fullyl oaded vehicle (weight of
the vehicle including all accessories, occu-
pants, fuel,l uggage and the drawbar nose-
weight if applicable).T he gross vehicle weight
rating is specified on the vehicle identification plate on the B-pilla ronthe driver's side.
Maximum loaded vehicle weight
The maximu mweight is the sum of the curb
weight of the vehicle ,the weight of the acces-
sories ,the total loadl imitand the weight of
the optional equipment installed at the fac-
tory.
Kilopascal (kPa)
Metric unit for tire pressure. 6.9 kPa is the
equivalent of 1psi.A nother unit for tire pres-
sure is bar. There are 100 kilopascals (kPa) to
1b ar.
Load index
In addition to the load-bearing index, the load index may alsobei mprinted on the sidewallof
the tire. This specifies the load-bearing capa-
city more precisely.
Curb weight
The weight of avehicle with standard equip-
ment including the maximu mcapacity of fuel,
oil and coolant. It alsoi ncludes the air-condi-
tioning system and optional equipment if
these are installed in the vehicle ,but does not
includ epassengers or luggage.
Maximum load rating
The maximu mloadr ating in kilograms or
pounds is the maximu mweight for which a
tire is approved.
Maximum permissible tire pressure
Maximu mpermissibl etire pressure for one
tire.
Maximum load on one tire
Maximu mloadono ne tire. This is calculated
by dividing the maximu maxle loadofo ne axle
by two. PSI (pounds per square inch)
As
tandard unit of measure for tire pressure.
Aspec tratio
Relationshi pbetwee ntire heigh tand tire
width in percent.
tire pressure
This is pressure inside the tire applying an
outward force to each square inch of the tire's surface. The tire pressure is specified in
pounds per square inch (psi), in kilopascal
(kPa) or in bar. The tire pressure shoul donly
be corrected when the tires are cold. For this,
the vehicle must have been stationary for at
least three hours or not have traveled more
than 1.6 km (1 mile)int his time.
Tire pressure of coldt ires
The tires are cold:
R if the vehicle has been parked without
direct sunlight on the tires for at least three
hours and
R if the vehicle has not been driven more than
1m ile (1.6 km)
Tread
The part of the tire that comes into contact
with the road.
Bead
The tire beade nsures that the tire sits
securel yonthe wheel. There are severa lsteel
wiresint he beadtop revent the tire from
coming loose from the wheelr im.
Sidewall
The part of the tire betwee nthe tread and the
bead.
Weight of optional extras
The combined weight of those optional extras
that weigh more than the replaced standard
part and more than 2.3 kilograms (5 lbs).
These optional extras, such as high-perform-
ance brakes, level control, aroof rack or a
high-performance battery, are not included in Alla
bout wheels and tires
269Wheelsand tires Z

Coupe
0043
Heigh twhen
opene d(rear
spoiler retracted) 63.4 in (1610 mm)
0043
Height when
opene d(rear
spoiler extended) 66.0 in (1677 mm)
0043
Height when
opene d(fixed rear
spoiler) 67.5 in (1714 mm)
0043
Range of move-
ment exceeding
vehicle width 14.3 in (362 mm)
0044
Height when
opene d(exterior
mirrors folde din) 73.7 in (1873 mm)
0044
Height when
opene d(exterior
mirrors folde dout) 76.6 in (1946 mm) Vehicle length
182.7 in (4640 mm)
Vehicle width
including exterior mirrors 81.7 in (2075 mm)
Vehicle height
49.7 in (1262 mm)
Wheelbase
105.5 in (2680 mm)
Front track
66.2 in (1682 mm)
Rear track
65.0 in (1651 mm)
Ground clearance
3.9 in (99 mm)
Turning radius
47.6 ft (12.1 m)
Maximum trunk
load 137 lb (62 kg)
Vehicle data, Roadster
Dimensions and weights
The data stated here specificallyr efers to a
vehicl ewith standard equipment. Consult an
authorized Mercedes-Benz Center for the
data for all vehicl evariants and trim levels. Roadster Vehicle data, Roadster
287Technical data Z

0043
Height when
opened (rear
spoiler retracted) 67.4 in (1713 mm)
0043
Height when
opened (rear
spoiler extended) 68.2 in (1732 mm)
0043
Height when
opened (fixed rear spoiler) 68.69 in (1770 mm)
SLS AMG Roadster
Vehicle length
182.7 in (4640 mm)
Vehicle width
including exterior mirrors 81.7 in (2075 mm)
Vehicle height
49.6 in (1261 mm)
Wheelbase
105.5 in (2680 mm)
Fron
ttrack 66.2 in (1682 mm)
Rear track
65.0 in (1651 mm)
Ground clearance
3.9 in (99 mm)
Turning radius
39.7 ft (12.1 m)
Maximum trunk
load
137 lb (62 kg)288
Vehicle data, RoadsterTechnical data