2017 MERCEDES-BENZ S-Class COUPE Owner's Manual

XPress0063or0064 to select Tire Pres‐sure.
XPress the 0076button.
The current tire pressure of each tire is shown
in the multifunction display.
If the vehicle was parked for longer than
20 minutes, the following message appears:
Tire
pressurewillbedisplayedafterdriving a few minutes.
After a teach-in process, the tire pressure mon-
itor automatically detects new wheels or new
sensors. As long as a clear allocation of the tire
pressure value to the individual wheels is not
possible, the Tire
PressureMonitorActivemessage is shown instead of the tire pressure
display. The tire pressures are already being
monitored.
Tire pressure monitor warning mes-
sages
If the tire pressure monitor detects a pressure
loss in one or more tires, a warning message is
shown in the multifunction display. The yellow
tire pressure warning lamp then lights up.
RIf thePlease Correct Tire Pressuremessage appears in the multifunction display,
the tire pressure in at least one tire is too low.
The tire pressure must be corrected when the opportunity arises.
RIf the Check Tiresmessage appears in the
multifunction display, the tire pressure in at
least one tire has dropped significantly. The
tires must be checked.
RIf the WarningTireMalfunctionmessage
appears in the multifunction display, the tire
pressure in at least one tire has dropped sud-
denly. The tires must be checked.
Observe the instructions and safety notes in the
display messages in the "Tires" section
(
Ypage 226).
If the wheel positions on the vehicle are rotated, the tire pressures may be displayed for the
wrong positions for a short time. This is rectified
after a few minutes of driving, and the tire pres-
sures are displayed for the correct positions.
Restarting the tire pressure monitor
When you restart the tire pressure monitor, all
existing warning messages are deleted and the
warning lamps go out. The monitor uses the cur-
rently set tire pressure as the reference values for monitoring. In most cases, the tire pressure
monitor will automatically detect the new refer-
ence values after you have changed the tire
pressure. However, you can also set reference
values manually as described here. The tire
pressure monitor then monitors the new tire
pressure values.
XSet the tire pressure to the value recommen-
ded for the corresponding driving situation on
the Tire and Loading Information placard on
the driver's side B-pillar (
Ypage 306).
You can find more tire pressure values for
various operating conditions in the tire pres-
sure table inside the fuel filler flap
(
Ypage 306).
XMake sure that the tire pressure is correct on
all four wheels.
XMake sure that the SmartKey is in position 2
in the ignition lock.
XUse 00E2 on the steering wheel to call up the
list of menus.
XPress 0063or0064 on the steering wheel to
select the Servicemenu.
XPress the0076button.
XPress 0063or0064 to select Tire Pres‐sure.
XPress the 0076button.
The current tire pressure for each wheel or
the Tire pressure will be displayed
after driving a few minutesmessage
will be displayed in the multifunction display.
XPress the 0064button.
The UseCurrentPressuresasNewRef‐erenceValuesmessage appears in the mul-
tifunction display.
If you wish to confirm the restart:
XPress the 0076button.
The TirePress.MonitorRestartedmes-
sage appears in the multifunction display.
After driving for a few minutes, the system
checks whether the current tire pressures are
within the specified range. The new tire pres-
sures are then accepted as reference values
and monitored.
If you wish to cancel the restart:
XPress the 0038button.
The tire pressure values stored at the last
restart will continue to be monitored.
Tire pressure311
Wheels and tires
Z

Radio type approval for the tire pres-
sure monitor
CountryRadio type approval number
USAFCC ID: MRXMW2433A
FCC ID: MRXGG4
FCC ID: MRXMC34MA4
CanadaIC: 2546A-MW2433A
IC: 2546A-GG4
IC: 2546A-MC34MA4
Loading the vehicle
Instruction labels for tires and loads
GWARNING
Overloaded tires can overheat, causing a
blowout. Overloaded tires can also impair the steering and driving characteristics and lead
to brake failure. There is a risk of accident.
Observe the load rating of the tires. The load
rating must be at least half of the GAWR of
your vehicle. Never overload the tires by
exceeding the maximum load.
Two instruction labels on your vehicle show the maximum possible load.
(1) The Tire and Loading Information placard is on the B-pillar on the driver's side. The Tire
and Loading Information placard shows the
maximum permissible number of occu-
pants and the maximum permissible vehicle
load. It also contains details of the tire sizes
and corresponding pressures for tires
mounted at the factory.
(2) The vehicle identification plate is on the B- pillar on the driver's side. The vehicle iden-
tification plate informs you of the gross
vehicle weight rating. It is made up of the
vehicle weight, all vehicle occupants, the
fuel and the cargo. You can also find infor-
mation about the maximum gross axle
weight rating on the front and rear axle.
The maximum gross axle weight rating is
the maximum weight that can be carried by
one axle (front or rear axle). Never exceed
the maximum load or the maximum gross
a

xle weight rating for the front or rear axle.
0043B-pillar, driver's side
Maximum permissible gross vehicle
weight rating
XSpecification for maximum gross vehicle
weight 0043is listed in the Tire and Loading
Information placard: "The combined weight of occupants and cargo should never exceed
XXX kilograms or XXX lbs."
The gross weight of all vehicle occupants, load
and luggage must not exceed the specified
value.
iThe specifications shown on the Tire and
Loading Information placard in the illustration are examples. The maximum permissible
gross vehicle weight rating is vehicle-specific
and may differ from that in the illustration.
You can find the valid maximum permissible
gross vehicle weight rating for your vehicle on
the Tire and Loading Information placard.
312Loading the vehicle
Wheels and tires

Number of seats
Maximum number of seats0043indicates the
maximum number of occupants allowed to
travel in the vehicle. This information can be
found on the Tire and Loading Information plac-
ard.
iThe specifications shown on the Tire and
Loading Information placard in the illustration
are examples. The number of seats is vehicle-
specific and can differ from the details shown.
The number of seats in your vehicle can be
found on the Tire and Loading Information
placard.
Determining the correct load limit
Step-by-step instructions
The following steps have been developed as
required of all manufacturers under Title 49, Code of U.S. Federal Regulations, Part 575 pur-
suant to the "National Traffic and Motor Vehicle
Safety Act of 1966".
XStep 1: Locate the statement "The combined
weight of occupants and cargo should never
exceed XXX kg or XXX lbs." on your vehicle's
Tire and Loading Information placard.
XStep 2: Determine the combined weight of
the driver and passengers that will be riding in your vehicle.
XStep 3: Subtract the combined weight of the
driver and passengers from XXX kilograms or
XXX lbs.
XStep 4: The resulting figure equals the avail-
able amount of cargo and luggage load capa-
city. For example, if the "XXX" amount equals
1400 lbs and there will be five 150-lb pas-
sengers in your vehicle, the amount of avail-
able cargo and luggage load capacity is
650 lbs (1400 - 750 (5 x 150) = 650 lbs).
XStep 5: Determine the combined weight of
luggage and cargo being loaded on the vehi-
cle. That weight may not safely exceed the
available cargo and luggage load capacity cal- culated in step 4.
Example: steps 1 to 3
The following table shows examples on how to calculate total and cargo load capacities with varying
seating configurations and number and size of occupants. The following examples use a load limit of
1500 lbs (680 kg). This is for illustration purposes only. Make sure you are using the actual load
limit for your vehicle stated on your vehicle's Tire and Loading Information placard (
Ypage 312).
The greater the combined weight of the occupants, the lower the maximum luggage load.
Example 1
Step 1
RCombined maximum weight of occupants and load (data from the Tire and Loading Information
placard): 1500 lbs (680kg )
Loading the vehicle313
Wheels and tires
Z

Step 2
RNumber of people in the vehicle (driver and occupants): 5
RDistribution of the occupants
-Front: 2
-Rear: 3
RWeight of the occupants
-Occupant 1: 150 lbs (68 kg)
-Occupant 2: 180 lbs (82 kg)
-Occupant 3: 160 lbs (73 kg)
-Occupant 4: 140 lbs (63 kg)
-Occupant 5: 120 lbs (54 kg)
RTotal weight of all occupants: 750 lbs (340 kg)
Step 3
RPermissible load (maximum gross vehicle weight rating from the Tire and Loading Information
placard minus the gross weight of all occupants):
1500 lbs (680 kg) 00F8750 lbs (340 kg) = 750 lbs (340 kg)
Example 2
Step 1
RCombined maximum weight of occupants and load (data from the Tire and Loading Information
placard): 1500 lbs (680 kg)
Step 2
RNumber of people in the vehicle (driver and occupants): 3
RDistribution of the occupants
-Front: 1
-Rear: 2
RWeight of the occupants
-Occupant 1: 200 lbs (91 kg)
-Occupant 2: 190 lbs (86 kg)
-Occupant 3: 150 lbs (68 kg)
RTotal weight of all occupants: 540 lbs (245 kg)
Step 3
RPermissible load (maximum gross vehicle weight rating from the Tire and Loading Information
placard minus the gross weight of all occupants):
1500 lbs (680 kg) 00F8540 lbs (245 kg) =960 lbs (435 kg)
Example 3
Ste

p 1
RCombined maximum weight of occupants and load (data from the Tire and Loading Information
placard): 1500 lbs (680 kg)
Step 2
RNumber of people in the vehicle (driver and occupants): 2
RDistribution of the occupants:
-Front: 1
RWeight of the occupants
-Occupant 1: 150 lbs (68 kg)
RTotal weight of all occupants: 150 lbs (68 kg)
314Loading the vehicle
Wheels and tires

Step 3
RPermissible load (maximum gross vehicle weight rating from the Tire and Loading Information
placard minus the gross weight of all occupants):
1500 lbs (680 kg)00F8150 lbs (68 kg) = 1350 lbs (612kg )
Vehi cle identification plate
Even if you have calculated th etotal cargo care-
fully, you should still mak esure that th egross
vehicl eweigh trating and th egross axle weigh t
rating are no texceeded. Details can be foun don
th evehicl eidentification plat eon th eB-pillar on
th edriver' sside of th evehicl e (
Ypage 312).
Permissible Gross Vehicle Weight Ratin g
(GVWR): thegross weigh tof th evehicle, all pas-
sengers, load and trailer load/noseweight (if
applicable) must no texcee dth epermissible
gross vehicl eweight.
Gross Axle Weight Ratin g(GAWR): themaxi-
mum permissible load that can be carried by on e
axle (fron tor rear axle).
To ensure that your vehicl edoes no texcee dth e
maximum permissible value s(gross vehicl e
weigh tand maximum gross axle weigh trating),
have your loade dvehicl e(including driver, occu-
pants ,cargo, and full trailer load if applicable)
weighed on asuitable vehicl eweighbridge.
All about wheels and tires
Uniform Tire Quality Grading Stand-
ards
Overview of Tire Quality Grading Stand-
ards
Uniform Tir eQuality Grading Standards are U.S.
governmen tspecifications. Thei rpurpose is to
provide drivers wit huniform reliable information
on tir eperformance data. Tir emanufacturers have to grad
etires usin gthree performance fac -
tors: 0043tread wear grade, 0044traction grad eand
0087 temperature grade. Thes eregulation sdo no t
apply to Canada. Nevertheless, all tires sold in
North Americ aare provide dwit hth ecorre-
spondin gqualit ygrading markings on th eside -
wall of th etire.
Quality grades can be found, wher eapplicable,
on th etir esidewall between tread shoulder and
maximum sectio nwidth.
Example :
RTreadwear grade: 200
RTraction grade: AA
RTemperaturegrade: A
All passenger car tires must conform to th estat-
utory safet yrequirements in addition to these
grades.
iThe actual value sfor tires are vehicle-spe-
cific and may deviat efrom th evalue sin th e
illustration .
Treadwear
The treadwear grad eis acomparative rating
based on th ewear rat eof th etir ewhen tested
under controlled condition son aspecifie dU.S.
governmen tcourse .Fo rexample , atiregraded
15 0would wear on eand one-half times as well
on th egovernmen ttest track as atir egraded
100.
The relativ eperformance of tires depend supon
th eactual condition sof their use, however ,and
may depar tsignificantly from th enorm due to
variation sin driving habits, servic epractices
and differences in road characteristics and cli -
mate.
Traction
GWARNIN G
The traction grad eassigned to this tir eis
based on straight-ahead braking traction
tests, and does no tinclude acceleration ,cor-
nering, hydroplaning ,or peak traction char-
acteristics.
All about wheels and tires315
Wheels and tires
Z

!Avoid wheelspin. This can lead to damage to
the drive train.
The traction grades – from highest to lowest –
are AA, A, B and C. Those grades represent the
tire's ability to stop on wet pavement as meas-
ured under controlled conditions on specified
government test surfaces of asphalt and con-
crete. A tire marked C may have poor traction
performance.
The safe speed on a wet, snow covered or icy
road is always lower than on dry road surfaces.
You should pay special attention to road condi-
tions when temperatures are around freezing
point.
Mercedes-Benz recommends a minimum tread
depth of 00CFin (4 mm) on all four winter tires.
Observe the legally required minimum tire tread
depth (
Ypage 304). Winter tires can reduce the
braking distance on snow-covered surfaces in
comparison with summer tires. The braking dis-
tance is still much further than on surfaces that
are not icy or covered with snow. Take appro-
priate care when driving.
Further information on winter tires (M+S tires)
(
Ypage 305).
Temperature
GWARNING
The temperature grade for this tire is estab-
lished for a tire that is properly inflated and
not overloaded. Excessive speed, underinfla-
tion, or excessive loading, either separately or
in combination, can cause excessive heat
build-up and possible tire failure.
The temperature grades are A (the highest), B,
and C, representing the tire's resistance to the
generation of heat and its ability to dissipate
heat when tested under controlled conditions
on a specified indoor laboratory test wheel. Sus-
tained high temperature can cause the material
of the tire to degenerate and reduce tire life, and
excessive temperature can lead to sudden tire
failure. The grade C corresponds to a level of
performance which all passenger car tires must
meet under the Federal Motor Vehicle Safety
Standard No. 109. Grades B and A represent
higher levels of performance on the laboratory
test wheel than the minimum required by law.
Tire labeling
Overview
0043Uniform Tire Quality Grading Standard
(Ypage 319)
0044DOT, Tire Identification Number
(Ypage 319)
0087Maximum tire load (Ypage 318)
0085Maximum tire pressure (Ypage 308)
0083Manufacturer
0084Tire material (Ypage 319)
006BTire size designation, load-bearing capacity
and speed rating (Ypage 316)
006CLoad index (Ypage 318)
006DTire name
The markings described above are on the tire in
addition to the tire name (sales designation) and
the manufacturer's name.
iTire data is vehicle-specific and may deviate
from the data in the example.
Tire size designation, load-bearing
capacity and speed rating
GWARNING
Exceeding the stated tire load-bearing capa-
city and the approved maximum speed could
lead to tire damage or the tire bursting. There is a risk of accident.
Therefore, only use tire types and sizes
approved for your vehicle model. Observe the
316All about wheels and tires
Wheels and tires

tire load rating and speed rating required for
your vehicle.
General:depending on the manufacturer's
standards, the size imprinted in the tire wall may
not contain any letters or may 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 according to European manufac-
turing standards.
If "P" precedes the size description: these are
passenger vehicle tires according to U.S. man-
ufacturing standards.
If "LT" precedes the size description: these are
light truck tires according to U.S. manufacturing
standards.
If "T" precedes the size description: compact
emergency wheels with high tire pressure that
are only designed for temporary use in an emer- gency.
Tire width: tire width0043shows the nominal tire
width in millimeters.
Height-width ratio: aspect ratio0044is 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 0087specifies the tire type.
"R" represents radial tires; "D" represents diag- onal tires; "B" represents diagonal radial tires.
Optionally, tires with a maximum speed of over
149 mph (240 km/h ) ma
y have "ZR" in the size
description, depending on the manufacturer
(e.g. 245/40 ZR 18).
Rim diameter: rim diameter0085is the diameter
of the bead seat, not the diameter of the rim
flange. The rim diameter is specified in
inches (in). Load-bearing index:
load-bearing index0083is a
numerical code that specifies the maximum
load-bearing capacity of a tire.
Do not overload the tires by exceeding the
specified load limit. The maximum permissible
load can be found on the vehicle's Tire and
Loading Information placard on the B-pillar on
the driver's side (
Ypage 312).
Example:
Load-bearing index 91 indicates a maximum
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 (
Ypage 318).
For further information on the load bearing
index, see "Load index" (
Ypage 318).
Speed rating: speed rating0084specifies the
approved maximum speed of the tire.
iTire data is vehicle-specific and may deviate
from the data in the example.
Regardless of the speed rating, always observe
the speed limits. Drive carefully and adapt your
driving style to th
e traffic conditions.
Summer tires
IndexSpeed rating
Qup to 100 mph (160 km/h)
Rup to 106 mph (170 km/h)
Sup to 112 mph (180 km/h)
Tup to 118 mph (190 km/h)
Hup to 130 mph (210 km/h)
Vup to 149 mph (240 km/h)
Wup to 168 mph (270 km/h)
Yup to 186 mph (300 km/h)
ZR...Yup to 186 mph (300 km/h)
ZR...(..Y)over 186 mph (300 km/h)
ZRover 149 mph (240 km/h)
ROptionally, tires with a maximum speed of
over 149 mph (240 km/h) may have "ZR" in
the size description, depending on the man-
ufacturer (e.g. 245/40 ZR18).
The service specification is made up of load-
bearing index 0083and speed rating 0084.
RIf the size description of your tire includes
"ZR" and there are no service specifications,
All aboutwheels an d tires317
Wheels and tires
Z

ask the tire manufacturer in order to find out
the maximum speed.
If a service specification is available, the max-
imum speed is limited according to the speed
rating in the service specification. Example:
245/40 ZR18 97 Y. In this example, "97 Y" is
the service specification. The letter "Y" rep-
resents the speed rating. The maximum
speed of the tire is limited to 186 mph
(300 km/h).
RThe size description for all tires with maxi-
mum speeds of over 186 mph (300 km/h)
must include "ZR",andthe service specifica-
tion must be given in parentheses. Example:
275/40 ZR 18 (99 Y). Speed rating "(Y)" indi-
cates that the maximum speed of the tire is
over 186 mph (300 km/h). Ask the tire man-
ufacturer about the maximum speed.
All-weather tires and winter tires
IndexSpeed rating
Q M+S1up to 100 mph (160 km/h)
T M+S1up to 118 mph (190 km/h)
H M+S1up to 130 mph (210 km/h)
V M+S1up to 149 mph (240 km/h)
iNot all tires with the M+S marking provide
the driving characteristics of winter tires. In
addition to the M+S marking, winter tires also
have the 004Dsnowflake symbol on the tire
wall. Tires with this marking fulfill the require-
ments of the Rubber Manufacturers Associa-
tion (RMA) and the Rubber Association of
Canada (RAC) regarding the tire traction on
snow. They have been especially developed
for driving on snow.
An electronic speed limiter prevents your vehi-
cle from exceeding a speed of 130 mph
(210 km/h).
The speed rating of tires mounted at the factory
may be higher than the maximum speed that the
electronic speed limiter permits.
Make sure that your tires have the required
speed rating, e.g. when buying new tires. The
required speed rating for your vehicle can be
found in the "Tires" section (
Ypage 326). Further information about reading tire data can
be obtained from any qualified specialist work-
shop.
Load index
In addition to the load-bearing index, load
index
0043may also be imprinted on the sidewall
of the tire. You will find this after the letter that
identifies the speed rating (
Ypage 316).
RIf no specification is given: no text (as in the
example above), represents a standard load
(SL) tire
RXL or Extra Load: represents a reinforced tire
RLight Load: represents a light load tire
RC, D, E: represents a load range that depends
on the maximum load that the tire can carry at
a certain pressure
iTire data is vehicle-specific and may deviate
from the data in the example.
Maximum load rating
Maximum tire load 0043is the maximum permis-
sible weight for which the tire is approved.
Do not overload the tires by exceeding the
specified load limit. The maximum permissible
1Or M+S 004Dfor winter tires.
318All about wheels and tires
Wheels and tires