2015 MERCEDES-BENZ SLS AMG GT ROADSTER load capacity

DOT (Department of Transporta-
tion) (definition) ............................. 268
GAW
R(GrossA xle Weight Rating)
(definition) .................................... .268
GVW (Gross Vehicle Weight) (def-
inition) .......................................... .268
GVW R(Gross Vehicle Weight Rat-
ing) (definition) .............................. 269
Important safety notes .................. 250
Increase dvehicle weight due to
optional equipment (definition) ...... 268
Kilopascal (kPa )(definition) ........... 269
Labeling (overview )........................ 264
Loa dbearing index (definition) ...... 270
Loa dindex ..................................... 266
Loa dindex (definition) ................... 269
Maximu mloaded vehicleweight
(definition) ..................................... 269
Maximu mloadona tire (definition) .. 269
Maximu mpermissibl etire pres-
sure (definition) ............................. 269
Maximu mtire load ......................... 267
Maximu mtire load (definition) ....... 269
Optiona lequipment weight (defi-
nition) ............................................ 269
PSI (pounds pe rsquare inch )(de f-
inition) ........................................... 269
Replacing ....................................... 270
Service life ..................................... 252
Sidewal l(de finition) ....................... 269
Speed rating (definition) ................ 268
Storing ........................................... 271
Structure and characteristics
(definition) ..................................... 268
Technica ldata. .............................. 277
Temperature .................................. 264
TIN (Tire Identification Number)
(definition) ..................................... 270
Tire bead (definition) ...................... 269
Tire pressure (definition) ................ 269
Tire pressures (recommended )...... 268
Tire size (data )............................... 275
Tire size designation, load-bearing capacity, speed rating .................... 264
Tire trea d....................................... 251
Tire trea d(definition) ..................... 269
Tota lloa dlim it (definition) ............. 270
Tractio n......................................... 263 Tractio
n(definition) ....................... 270
Tread wear ..................................... 263
Uniform Tire Quality Grading
Standard s...................................... 263
Uniform Tire Quality Grading
Standard s(de finition) .................... 268
Wea rindicator (definition) ............. 270
Wheel rim (definition) .................... 268
see Fla ttire
Top Tether ............................................ 53
Tow-away alarm .................................. 59
Towing Important safety guideline s........... 244
Installing the towing ey e................ 245
Removing the towing ey e............... 245
With the rea raxler aised ................ 245
Towin gaway
With both axles on the ground ....... 246
Transmission
Driving tip s.................................... 124
Selector lever ................................ 121
Shift rang e..................................... 127
Transmissio nposition display ......... 123
Transmissio npositions .................... 123
Transporting the vehicle .................. 246
Trim piece s(clea ning instructions) .. 230
Trip computer (on-board computer) .. 153
Trip odometer Calling up ....................................... 152
Trunk
Emergency release .......................... 74
Important safety guideline s............. 72
Locking separatel y........................... 74
Opening (automatically from
inside ).............................................. 73
Trunk lid
Displa ymessage ............................ 184
Opening/closing ........................ 72, 73
Opening dimensions ...................... 286
Trunk load (maximum) ...................... 286
see Technical data
Turn signal (display message) ......... 174
Turn signals Switching on/of f.............................. 98
Type identificatio nplate
see Vehicl eide ntification plate Index
15

U
Unlocking Emergenc yunlocking .......................70
From inside the vehicle (central
unlocking button) ............................. 70
Upshift indicator ............................... 128V
Vanity mirror (i nthe sun visor) ........ 202
Vehicle Correct us e...................................... 23
Displa ymessag e............................ 184
Equipment ....................................... 19
Individua lsettings .......................... 157
Limite dWarranty ............................. 24
Loading .......................................... 260
Locking (i nanemergency) ............... 71
Locking (SmartKey ).......................... 62
Lowering ........................................ 275
Maintenance .................................... 20
Parking for alon gp eriod. ............... 134
Pulling away ................................... 120
Raising ........................................... 272
Reporting problems ......................... 23
Towing away .................................. 244
Transporting .................................. 246
Unlocking (i nanemergency) ........... 70
Unlocking (SmartKey )................ 62, 68
Vehicl edata. .................................. 286
Vehicl edata ....................................... 286
see Technica ldata
Vehicl edimensions ........................... 286
see Technica ldata
Vehicl eemergenc yloc king ................ 71
Vehicl eidentificatio nnumber
see VIN
Vehicl eidentificatio nplate .............. 280
Vehicl etoolkit.................................. 234
Vehicl eweigh ts
see Technica ldata
Vide o(DV D)........................................ 155
VIN ...................................................... 280 W
Warning and indicator lamps ABS ................................................ 192
Brakes ................................... 190 ,192
Check Engine ................................. 195
Cruise control ................................ 139
ESP ®
.............................................. 193
Fue ltank ........................................ 196
Overview .......................................... 28
PASSENGER AIR BAG OFF indica-
tor lamp ........................................... 42
Reserve fue l................................... 196
Sea tbelt. ....................................... 191
SPOR Thandling mod e................... 193
SRS ................................................ 194
Tire pressure monitor .................... 197
Warranty ...................................... 19, 280
Washer fluid see Windshield washe rsystem
Washer fluid (display message) ....... 185
Weight see Technical data
Wheel bolt tightenin gtorque ........... 275
Wheel chock ...................................... 271
Wheels Checking ........................................ 251
Cleaning ......................................... 225
Important safety notes .................. 250
Interchanging/changing ................ 270
Mounting anew whee l................... 274
Mounting awheel .......................... 271
Removing awheel .......................... 273
Storing ........................................... 271
Tightening torque ........................... 275
Wheel size/tire size ....................... 275
Windows
see Sid ewindows
Win dscreen ......................................... 80
Windshiel dwasher system .............. 221
Filling capacity ............................... 286
Note s............................................. 286
Windshiel dwipers
Problem (malfunction) ................... 103
Replacing the wipe rblade s............ 102
Switching on/of f........................... 101 16
Index

Numbe
rofseats Maximum numbe
rofseats 0043 indicates the
maximum numbe rofoccupants allowe dto
travel in the vehicle. This information can be
found on the Tire and Loading Information
placard.
i Th
es pecifications shown on the Tire and
Loading Informatio nplacard in the illustra-
tio na reexamples .The numbe rofseats is
vehicle-specific and can diffe rfromt he
details shown. Th enumbe rofseats in your
vehicl ecan be found on the Tire and Load-
ing Informatio nplacard. Determining the correc
tloa dl im it
Step-by-ste pinstructions Th
ef ollowing steps have been developed as
required of al lmanufacturer sunder Title 49,
Code of U.S. Federa lRegulat ions, Part 575
pursuant to the "Nationa lTraffi cand Motor
Vehicle Safety Act of 1966".
X Ste p1: Locate the statement "The com-
bined weight of occupants and cargo
shoul dneve rexceed XXX kg or XXX lbs." on
your vehicle' sTirea nd Loading Information
placard.
X Ste p2: Determine the combined weight of
the driver and passengers tha twillber iding
in your vehicle.
X Ste p3:Subtract the combined weight of
the driver and passengers fro mXXX kilo-
grams or XXX lbs. X
Ste p4:Th eresulting figure equals the
availabl eamount of cargo and luggag eload
capacity. For example, if the "XXX" amount
equals 1400 lb sand there will be five 150
lb sp assengers in your vehicle, the amount
of availabl ecargo and luggag eloa dc apa-
city is 650 lb s(1400-750 (5 x150) =650
lbs).
X Ste p5:Determine the combined weight of
luggag eand cargo being loaded on the
vehicle. That weight ma ynot safel yexceed
the availabl ecargo and luggag eloa dc apa-
city calculated in ste p4. Loading the vehicle
261Wheelsand tires Z

The safe speed on
awet, snow covered or icy
road is alway slower than on dry road surfa-
ces.
You should pay special attention to road con-
ditions when temperatures are around freez-
ing point.
Mercedes-Benz recommends aminimum
tread depth of 00CFin (4 mm )onall four winter
tires. Observe the legally required minimum
tire tread depth (Y page 251). Winter tires can
reduce the braking distanc eonsnow-covered
surfaces in comparison with summer tires.
The braking distanc eisstill much further than
on surfaces that are not icy or covered with
snow. Take appropriate care when driving.
Further information on winter tires (M+S
tires) (Y page 252).
Temperature G
WARNING
The temperature grade for this tire is estab-
lished for atire that is properly inflated and
not overloaded. Excessive speed, underinfla-
tion, or excessiv eloading, either separately or
in combination, can cause excessiv eheat
build-up and possible tire failure.
The temperature grades are A(the highest), B,
and C. They represent the tire's resistanc eto
the generation of heat and its ability to dissi- pate heat when tested under controlled con-
ditions on aspecified indoor laboratory test
wheel. Sustained high temperature can cause
the material of the tire to degenerate and
reduce tire life, and excessiv etemperature
can lead to sudden tire failure. The grade C
corresponds to alevel of performance which
all passenger car tires must meet under the
Federal Motor Vehicle Safety Standard No.
109. Grades BandArepresent higher levels
of performance on the laboratory test wheel
than the minimum required by law. Tire labeling
Overview The following markings are on the tire in addi-
tion to the tire name (sales designation) and
the manufacturer's name: 0043
Uniform Tire Quality Grading Standard
(Ypage 268)
0044 DOT, Tire Identification Number
(Ypage 267)
0087 Maximum tire load (Y page 267)
0085 Maximum tire pressure (Y page 256)
0083 Manufacturer
0084 Tire material (Y page 268)
006B Tire size designation, load-bearing capa-
city and speed rating (Y page 264)
006C Load index (Y page 266)
006D Tire name
i Tire data is vehicle-specific and may devi-
ate from the data in the example.
Tire size designation, load-bearing
capacity and speed rating G
WARNING
Exceeding the stated tire load-bearing capa-
city and the approved maximum speed could
lead to tire damage or the tire bursting. There is ar isk of accident. 264
All about wheelsa
nd tiresWheels and tires

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

the curb weight and the weight of the acces-
sories.
TIN (Tire Identificatio nNumber)
This is auniqu eide ntifier which can be used
by atirem anufacturer to identify tires ,for
exampl efor ap roduct recall, and thu side ntify
the purchasers. Th eTIN is made up of the
manufacturer's identity code, tir esize, tire
typ ecodea nd the manufacturing date.
Load bearin gind ex
Th eloa db eari ng index (als oloa dindex) is a
cod etha tcontains the maximum load bearing
capacity of atire.
Traction
Tractio nist he resul toffrictio nbetween the
tires and the roa dsurface.
Treadwea rind icators
This is indicated by narrow bars (treadwear
bars) tha tare distributed ove rthe tir etread. If
the tir etrea disl evel with the bars, the wear
limi tof 1
/ 16 in (1.
6mm) ha sbeenr eached.
Occupant distribution
Th ed istributio nofoccupants in avehicl eat
their designated seating positions.
Tota lloa dl im it
Rated cargo and luggag eloa dp lus68k ilo-
grams (15 0lb) times the vehicle' sdesig nated
seating capacity. Changin
gawheel Flat tire
Th e" Breakdown assistance" section
(Y page 235 )contains information and notes
on ho wtod ealw ithaf latt ire. Rotatin
gthe wheels G
WARNING
Interchanging the front and rea rwheel smay
severel yimpair the driving characteristics if
the wheels or tires have different dimensions. Th ew heel brakes or suspensio ncomponents
ma yalsobed amaged .The re is ariskofa cci-
dent.
Rotate front and rea rwheel sonlyift he wheels
and tires ar eofthe same dimensions.
! On vehicles equipped with
atirep ressure
monitor, electroni ccomponents are
locate dinthe wheel.
Tire-mounting tools shoul dnot be used
nea rthe valve. This could damage the elec-
troni ccomponents.
Onl yhavet ires change dataqualified spe-
cialist workshop.
Alway spayattentio ntothe instructions and
safety note swhenc hanging awheel
( Y page 271).
Th ew earp atterns on the front and rea rtires
differ, depending on the operating conditions.
Rotate the wheels befor eaclear wear pattern
ha sformed on the tires .Front tires typically
wear mor eonthe shoulders and the rea rtires
in the center.
If your vehicle' stirec onfiguration allows ,you
can change the wheels according to the inter-
vals in the tir emanufacturer's warranty book
in your vehicl edocum ents.Ifnow arranty
book is available, the tires shoul dberotated
every 3,000 to 6,000 mile s(5,000 to
10,000 km), or earlie riftirew earrequires .Do
not change the directio nofwheelrotation.
Clea nthe contact surfaces of the whee land
the brake disc thoroughly every tim eawheel
is rotated .Check the tir epressure and reac-
tivate the tir epressure monitor if necessary. Directio
nofrotation
Tires with aspecified directio nofrotation
have additional benefits, e.g .ifthere is arisk 270
Changin
gawheelWheels an dtires

Securing the vehicle on level ground
X On level ground: place chocks or other
suitabl eitem sunder the front and rea rof
the wheel that is diagonall yopposite the
wheel yo uwishtoc hange. Securing the vehicle on slight downhil
lgradients
X On downhill gradients: place chocks or
othe rsuitabl eitem sinf ront of the wheels
of the front and rea raxle.
Raisin gthe vehicle G
WARNING
If yo udon ot position the jack correctly at the
appropriate jacking point of the vehicle ,the
jack could tip ove rwitht he vehicle raised.
There is ariskofi njury.
Only position the jack at the appropriate jack-
ing point of the vehicle .The base of the jack
mus tbep ositioned vertically ,directl yunder
the jacking point of the vehicle. The following mus
tbeo bserve dwhenr aising
the vehicle:
R to raise the vehicle ,only us ethe vehicle-
specifi cjack that ha sbeent ested and
approved by Mercedes-Benz. If used incor-
rectly, the jack could tip ove rwitht he vehi-
cle raised.
R the jack is designe donly to raise and hold
the vehicle for ashort time whil eawheel
is being changed .Itisnot suited for per-
forming maintenance work under the vehi-
cle.
R avoid changing the wheel on uphil land
downhil lslopes.
R before raising the vehicle ,secure it from
rolling away by applying the electri cpark-
ing brake and positioning wheel chocks.
Neve rrelease the electri cparking brake
whil ethe vehicle is raised.
R the jack mus tbep lace donaf irm,flata nd
non-slip surface. On aloose surface, a
large ,load-bearing underlay mus tbeu sed.
On aslippery surface, anon-slip underlay
mus tbeu sed, e.g. rubber mats.
R do not us ewoodenb locks or similar
objects as ajack underlay .Otherwise, the
jack will not be able to achieve its load-
bearing capacity du etothe restricted
height.
R make sure that the distance between the
underside of the tire sand the ground does
not excee d1.2 in (3 cm).
R never place your hands and fee tunder the
raised vehicle.
R never li eunder the raised vehicle.
R never star tthe engine when the vehicle is
raised.
R never ope norclosead oorort he trunk lid
when the vehicle is raised.
R make sure that no persons are present in
the vehicle when the vehicle is raised. 272
Changing
awheelWheels and tires