R
Use snow chains only when thero ad sur face
is comple tely sno w-covered. Re mo vethe
snow chains as soon as possible when you
come toaro ad that is not sn ow-co vered.
R Local regulations may restrict the use of
snow chains. Obse rveth e applicable regula‐
tions before ins talling snow chains.
R Activate all-wheel drive be fore driving off with
snow chains (/ page125, 124, 125).
R If sn ow ch ains are installed, the maximum
permissible speed is 30 mph (50 km/h).
R Vehicles with Parking Assis t:do not use
Pa rking Assist PARKTRONIC if sn ow chains
are ins talled.
% You can deactivate ESP ®
to pull away
( / page 148). This all ows the wheels to
spin, achieving an increased driving forc e. Ti
re pressure Note
s on tire pressure &
WARNING Risk of accident due toinsuf‐
fi cient or excessive tire pressure
Underinfla ted or overinfla ted tires pose the
fo llowing risks:
R The tires may bur st, especially as the load
and vehicle speed increase.
R The tires may wearexcessively and/or
une venly, which may greatly impair tire
traction.
R The driving characteristics, as well as
st eering and braking, may be greatly
impaired. #
Comply with there commended tire
pressure and check the tire pressure of
all tires including the spare wheel regu‐
larly:
R at least once a month
R when the load changes
R before embarking on a lon ger journey
R if operating conditions change, e.g. off-
ro ad driving #
Adjust the tire pressure as necessar y. Driving wi
thtire pressure that is too high or too
low has thefo llowing consequences:
R Shor tenth e service life of the tires.
R Cause increased tire damage.
R Adversely af fect handling characteristics and
th us driving saf ety, e.g. due tohydroplaning. &
WARNING Risk of an accident due to
insuf ficient tire pressure
Ti re s with pressure that is too low can over‐
heat and bur stas a result.
In addition, they also suf fer from excessive
and/or ir regular wear, which can significantly
impair the braking properties and the han‐
dling characteristics. #
Avoid excessively low tire pressures in
all the tires, including the spare wheel. Ti
re pressure which is too low can cause:
R Tire faults as a result of overheating
R Impaired handling characteristics
R Irre gular wear
R Increased fuel consum ption &
WARNING Risk of accident from exces‐
sive tire pressu re
Ti re s with excessively high pressure can bur st
because they are damaged more easily by
highw ayfill, pot holes etc.
In addition, they also suf fer from ir regular
we ar, which can significantly impair the brak‐
ing properties and the handling characteris‐
tics. #
Avoid excessively high tire pressures in
all the tires, including the spare wheel. Excessively high tire pressure can
result in:
R Increased braking dis tance
R Impaired handling characteristics
R Irre gular wear
R Impaired driving com fort
R Susceptibility todamage &
WARNING Risk of accident caused by
re peated drop in tire pressure
If th e tire pressure drops repeatedly, the
wheel, valve or tire may be damaged. 310
Wheels and tires
Insuf
ficient tire pressure can cause the tires
to bur st. #
Inspect the tire for signs of fore ign
objects. #
Check whe ther the wheel or valve has a
leak. #
Ifyo u are unable torectify the damage,
contact a qualified specialist workshop. Yo
u can find information on recommended tire
pressure forth eve hicle's factor y-ins talled tires
on thefo llowing labels:
R Tire and Loading In form ation placard on the
B‑pillar of your vehicle (/ page317).
R Tire pressure table on the inside of the fuel
fi ller flap .
Obse rveth e maximum tire pressure
(/ page 321).
Use a suitable pressure gauge tocheck the tire
pressure. The outer appearance of a tire does not
permit any reliable conclusion about the tire
pressure.
+ ENVIRONMEN
TALNO TEEnvironmental
damage due toinsuf ficient or excessive
tire pressure Insuf
ficient or excessive tire pressure short‐
ens the service life of the tires. #
Check the tire pressure regularly, but at
least every14 days. Ve
hicles with a tire pressure monitor: you can
also check the tire pressure using the on-board
computer.
Only check tire pressure when the tires are cold.
Conditions for cold tires:
R The vehicle has been par ked with the tires out
of direct sunlight for at least thre e hours.
R The vehicle has tr aveled less than 1 mile
(1.6 km).
A rise in the tire temp erature of 18°F (10°C)
increases the tire pressure byappr ox.10 kPa
(0.1 bar/1.5 psi). Take this into account when
ch ecking the tire pressure of warm tires.
The tire pressure recommended for increased
load/speed in the tire pressure table may af fect
th eride comfort. &
WARNING Risk of accident due to
unsuitable accesso ries on tire valve
If yo u mount unsuitable accesso ries onto tire
va lves, the tire valves may be overloaded and
malfunction, which can cause a loss of tire
pressure. Af term arke t tire pressure moni tor‐
ing sy stems will cause the tire valve toremain
open, depending on the design. This can also
re sult in a loss of tire pressure. #
Only scr ewstandard valve caps or valve
caps specifically appr ovedby Mercedes-
Benz foryo ur vehicle onto the tire valve. Note
s on trailer operation
The applicable tire pressure forth e tires of the
re ar axle is alw aysth ere commended tire pres‐
sure for a full load. Overview of
the tire pressure table The tire pressure
table can be found on the seat
base or on the B‑pillar on the driver's side.
% The data shown in
the images is example
data. The tire pressure
table sho ws there commended
tire pressure forth e tires ins talled at thefa ctory
on this vehicle. The recommended tire pressures
are valid for cold tires and dif fere nt vehicle load
conditions.
If one or more tire sizes precede a tire pressure,
th e tire pressure information following is only
va lid forth ose tire sizes.
If th e preceding tire sizes are supplemented by
th e0091 symbol, the tire pressure information
fo llowing sho wsalternative tire pressures.
The load conditions "partially laden" and "fully
laden" are defined in theta ble forva rying
we ights.
Some tire pressure tables only show therim
diame ter ins tead of the comple tetire size, e.g.
R16. The rim diame ter is part of the tire size and
can be found on the side wall of the tire
(/ page 321). Wheels and tires
311
has not
reached the le velto trig ger illumina‐
tion of the TPMS low tire pressure telltale.
Yo ur vehicle has also been equipped with a
TPMS malfunction indicator toindicate that
th e sy stem is not operating properly. The
TPMS malfunction indicator is combined with
th e low tire pressure telltale. When the sys‐
te m de tects a malfunction, the indicator lamp
will flash for appro ximately one minute and
th en remain continuously illumina ted. This
sequence will continue upon subsequent
ve hicle start-ups as long as the malfunction
ex ists.
When the malfunction indicator is illuminated,
th e sy stem may not be able todetect or sig‐
nal low tire pressure as intended. TPMS mal‐
functions may occur for a variet y of reasons,
including the ins tallation of replacement or
alternate tires or wheels on theve hicle that
pr ev ent the TPMS from functioning properly.
Alw aysch eck the TPMS malfunction telltale
af te rre placing one or more tires or wheels on
yo ur vehicle toensure that there placement
or alternate tires and wheels allow the TPMS
to continue tofunction properly. The sy
stem checks the tire pressure and thete m‐
perature of the tires ins talled on theve hicle by
means of a tire pressure sensor.
New tire pressure sensors, e.g. in winter tires,
are automatically taught-in during thefirs t jour‐
ney they are used.
The tire pressure and the tire temp erature appear
in the multifunction display (/ page177).
If th ere is a subs tantial loss of tire pressure, a
wa rning is issued:
R Via display messages (/ page 369)
R Viath e0077 warning lamp in the instrument
clus ter
It is the driver's responsibility toset the tire pres‐
sure tothere commended cold tire pressure suit‐
able forth e operating situation. Set the tire pres‐
sure for cold tires using a tire pressu regauge.
No tethat the cor rect tire pressure forth e cur rent
ope rating situation mu stfirs t be taught-in tothe
tire pressure moni toring sy stem.
In most cases, the tire pressure monitoring sys‐
te m will automatically update the new refere nce
va lues af teryo u ha vechanged the tire pressure.
Yo u can, ho wever,also update there fere nce val‐ ues
byrestarting the tire pressure monitoring
sy stem manually (/ page316).
Sy stem limits
The sy stem may be impaired or may not function
in thefo llowing situations:
R Ifth e tire pressure is set incor rectly
R Ifth ere is a sudden pressure loss caused by a
fo re ign object penetrating the tire, forex am‐
ple
R Ifth ere is a malfunction caused byano ther
ra dio signal source
R Ifth ere is a change of tire size Wheels and tires
315
Make sure
toobser vethefo llowing fur ther rela‐
te d subject:
R Notes on tire pressure (/ page310)
Checking the tire pressure with the tire pres‐
sure monitoring sy stem
Requ irements:
R The ignition is switched on.
On-board computer: 4 Service 5
Tires
One of thefo llowing displa ysappears:
R The cur rent tire pressure and tire temp era‐
ture of the individual wheels. Instrument Display with color display
R The cur rent tire pressure for each wheel. Instrument Display with black
and white display
R Tire pressure will be displayed after driving a
few minutes :th ete ach-in process of the sys‐
te m is not yet compl ete. The tire pressures
are already being monitored. #
Compare the tire pressure with there com‐
mended tire pressure forth e cur rent ope rat‐
ing condition (/ page 311). Obser vethe
no tes on tire temp erature (/ page310).
% The
values displa yed in the multifunction dis‐
play may deviate from those of the tire pres‐
sure gauge as they referto sea le vel.At high
altitudes, the tire pressure values indicated
by a pressure gauge are higher than those shown
bythe on-board computer. In this
case, do not reduce the tire pressure.
Make sure toobser vethefo llowing fur ther rela‐
te d subject:
R Notes on tire pressure (/ page310)
Rest arting the tire pressure monitor
Requ irements:
R The recommended tire pressure is cor rectly
set forth ere spective operating condition on
each of the wheels (/ page310).
R Rest
artthe tire pressure monitoring sys‐
te m in the following situations:
- The tire pressure has changed.
- The wheels or tires ha vebeen changed or
newly ins talled.
On-board computer: 4 Service 5
Tires #
Scroll down in the menu.
The Use Current Pressures as New Refer-
ence Values message appears in the multi‐
function displa y. #
Con firm the message toinitiate a restart.
The Tire Press. Monitor Restarted message
appears in the multifunction displa y.
Cur rent wa rning messages are dele ted and
th e0077 yellow warning lamp goes out.
Af teryo u ha vedriven for a few minutes, the
sy stem checks whe ther the cur rent tire pres‐
su res are within the specified range. The cur‐
re nt tire pressures are then accep ted as ref‐
erence values and monitored. 316
Wheels and tires
Make sure
toobser vethefo llowing fur ther rela‐
te d subject:
R Notes on tire pressure (/ page310)
Ra dio-equipment appr oval of the tire pres‐
sure monitoring sy stem
Ra dio equipment appr oval numbers Countr
yRadio equipment appr oval
number
Canada IC: 4008C- TSSRE4A
Ope ration is subject tothefo llow‐
ing two conditions:
(1) this device may not cause
harmful inter fere nce, and
(2) this device must acce ptany
inter fere nce received, including
inter fere nce that may cause
undesired operation.
Mexic oM odel:TSSRE4A & TSSSG4G6,
IFETEL: RLVHUTS17-0806
US AF CC ID:YGOTSSRE4A
This device complies wi th Part15
of the FCC Rules. Operation is
subject tothefo llowing two con‐
ditions: (1) this device may not
cause harmful inter fere nce, and
(2) this device must acce ptany
inter fere nce received, including
inter fere nce that may cause
undesired operation.
WA RNING: Any changes or modi fi‐
cation not expressly appr ovedby
th e party responsible for compli‐
ance could void the user's author‐
ity tooperate this equipment. Loading the
vehicle Ti
re and Loading Information placard &
WARNING Risk of an accident when driv‐
ing wi than ove rloaded tire
Overloaded tires may overheat and bur stas a
consequence. Overloaded tires can also
impair thesteering and handling characteris‐
tics and lead tobrake failure. #
Obser vethe load rating of the tires. #
The load rating mu stbe at least half the
gross axleweight rating of theve hicle.
Mercedes-Benz recommends you use
th e load-bearing index, which is given in
th eve hicle documents. #
Neverove rload the tires by exceeding
th e maximum load. Only
vehicles with a gross vehicle weight of less
th an 10,000 lbs (4,536 kg) ha veaTire and Load‐
ing In form ation placard on the B-pillar on the driv‐
er's side. 1
Tire and Loading In form ation placard %
The data shown in
the illustration is sample
data.
The Tire and Loading In form ation placard sho ws:
R The maximum number of seats indicates the
maximum number of occupants permitted to
tr ave l in theve hicle.
R The maximum permissible load equals the
gross weight of all vehicle occupants, the lug‐
ga ge and cargo.
R The recommended tire pressu resfo r cold
tires. The recommended tire pressures apply
to the maximum permissible load and up to
th e maximum permissible speed of theve hi‐
cle.
Also obser vethefo llowing information:
R The information about permissible weights on
th eve hicle identification plate (/ page 338).
R The information about tire pressure on the
tire pressure table . Wheels and tires
317
1
Tread weargrade
2 Traction grade
3 Temp erature grade
% The data shown in
the illustration is sample
data.
% This grading is not legally prescribed
for Can‐
ada, but specified in most cases anyw ay.
Tr ead weargrade
The tread wear grade is a comparative grading
based on tread wear grade tests conducted
under contro lled conditions on a specified U.S.
Depa rtment of Transpor tation test trac k.For
ex ample, a tire graded 150wo uld wear one and
one-half times as well on the go vernment test
track as a tire graded 100.
The relative per form ance of tires depends upon
th e actual conditions of their use, ho wever,and
may depart significantly from the norm due to
va riations in driving habits, service practices and
dif fere nces in road characteristics and climate
conditions.
Tr action grade &
DANG ER Risk of accident due toinade‐
qu ate traction
The traction grade assigned tothis tire is
based on stra ight-ahead braking traction
te sts, and does not include either accelera‐
tion, cornering, hydroplaning or peak traction
ch aracteristics. #
Always adapt your driving style and
drive at a speed tosuit the pr evailing
traf fic and weather conditions. *
NO
TEDama getothe driv etra in from
wheelspin #
Avoid wheelspin. The traction grades – from highest
tolowest –
are AA, A,B and C. These grades relate tothe tire's ability
tocome toast andstill on a wet pa ve‐
ment under controlled conditions on a specified
U. S. go vernment test sur face made from asphalt
and concr ete.
Te mp erature grade &
WARNING Risk of accident from tire
ove rheating and tire failure
The temp erature grade forth is tire is es tab‐
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. #
Obser vethere commended tire pres‐
sures and regular lych eck the tire pres‐
sure of all tires including the spare
wheel. #
Adjust the tire pressure as necessar y. The
temp erature grades are A (highest grade), B
and C. These relate toa tire's resis tance toheat
and its ability torelease heat on a specified test
wheel in laboratory tests under contro lled condi‐
tions. Sus tained high temp eratures can cause the
material of the tire todegenerate and reduce tire
life. In addition, excessively high temp eratures
can lead tosudden tire failure. Grade C refers to
a per form ance which all passenger vehicle tires
must exhibit, according totheU. S. Depa rtment
of Transpor tation's requ irements. Information on DOT and TIN (Tire Identifica‐
tion
Number) U.
S. tire regulations indicate that every tire man‐
ufacturer or retreader mu stimprint a TIN in or on
th e side wall of each tire produced. %
The data shown in
the illustration is sample
data. 320
Wheels and tires
The TIN is a unique identification number
for tires
and consists of thefo llowing components:
R DOT (Department of Transportation): tire
symbol 1indicates that the tire complies
with therequ irements of theU. S. Depa rtment
of Transpor tation.
R Manufacturer identi fication code: manu‐
fa cturer identification code 2prov ides infor‐
mation about the tire manufacturer. New tires
ha ve a code with two symbols. Retreaded
tires ha vea code with four symbols. For fur‐
th er information about retreaded tires, see
(/ page 324).
R Tire size: identifier 3describes the tire size.
R Tire type code: tire type code 4can be
used bythe manufacturer as a code to
describe specific characteristics of the tire.
R Date of manu factu re:da te of manufacture
5 prov ides information about the age of a
tire. The 1st and 2nd numbers indicate the
calendar week and the 3rd and 4th numbers
indicate theye ar of manufacture (e.g. "3208"
re fers to the 32nd week of theye ar 2008). Information on maximum tire load
%
The data shown in
the illustration is sample
data.
Maximum tire load 1isthe maximum permissi‐
ble weight for which the tire is appr oved.
Do not overload the tires by exceeding the maxi‐
mum permissible load. The maximum permissible
load can be found on theve hicle's Tire and Load‐
ing In form ation placard on the B-pillar on the driv‐
er's side (/ page317). Information on maximum tire pressure
%
The data shown in
the illustration is sample
data.
Maximum permitted tire pressure 1, which is
permitted forth e tires must not be exceeded.
Exception: when using the 225/ 75R16C
12 1/120R (122L) tires as a spa rewheel on the
re ar axle of Super Sin gle ve hicles with a dis tance
limit of 62 mi (100 km) and speed limit of 34 mph
(55 km/h). Information on tire
characteristics %
The data shown in
the illustration is sample
data.
This information describes the type of tire cord
and the number of la yers in side wall1 and
under tire tread 2. Ti
re size designation, load-bearing capacity,
speed rating and load index &
WARNING Risk of inju rythro ugh exceed‐
ing the specified tire load rating or the
permissible speed rating
Exceeding the specified tire load rating or the
permissible speed rating may lead totire
dama geand tothe tires bur sting. #
Therefore, only use tire types and sizes
appr ovedfo ryo ur vehicle model. Wheels and tires
321
Aspect
ratio: relationship between tire height
and tire width in percent.
Ti re pressure: pressure inside the tire applying
an outward forc eto eve rysquare inch of the
tire's su rface. The tire pressure is specified in
pounds per square inch (psi), in kilopascal (kPa)
or in bar. The tire pressure should only be cor rec‐
te d when the tires are cold.
Ti re pressure on cold tires: the tires are cold
when theve hicle has been par ked with the tires
out of direct sunlight for at least thre e hours and
th eve hicle has been driven less than 1 mile
(1.6 km).
Ti re contact sur face: the part of the tire that
comes into con tact wi th thero ad.
Ti re bead: the purpose of the tire bead is to
ensure that the tire sits securely on the wheel
ri m. There are se veral wire cores in the tire bead
to preve ntthe tire from changing length on the
wheel rim.
Side wall:the part of the tire between the tread
and the tire bead.
Special equipment weight: the combined
we ight of those optional extras that we igh more
th an there placed standard parts and more than
5 lbs (2.3 kg). These op tionalextras, su chas
high-pe rformance brakes, le vel control sy stem, a
ro of luggage rack or a high-per form ance batter y,
are not included in the curb weight and the
we ight of the accessories.
TIN (Tire Identification Number): a unique iden‐
tification number which can be used bya tire
manufacturer toidentify tires, forex ample for a
product recall, and thus identify the pur chasers.
The TIN is made up of the manufacturer identifi‐
cation code, tire size, tire type code and the man‐
ufacturing date.
Load-bearing index: the load-bearing index (also
load index) is a code that con tains the maximum
load-bearing capacity of a tire.
Tr action: traction is there sult of friction between
th e tires and thero ad sur face.
We ar indicator: narrow bars (tread wear bars)
th at are distributed overth e tire tread. If the tire
tread is le vel with the bars, thewe ar limit of
1/ 16 in (1.6 mm) has been reached.
Distribution of vehicle occupants: distribution
of vehicle occupants over designated seat posi‐
tions in a vehicle. Maximum permissible pa
yload weight: nomi‐
nal load and luggage load plus 150 lbs (68 kg)
multiplied bythe number of seats in theve hicle. Changing a wheel
Note
s on selecting, installing and replacing
tires Yo
u can ask for information rega rding permit ted
wheel/tire combinations at a qualified specialist
wo rkshop. &
WARNING Risk of accident due toincor‐
re ct sizes of wheels and tires
If wheels and tires of the wrong size are used,
th e wheel brakes or wheel suspension com‐
ponents may be damaged. #
Alwaysre place wheels and tires with
ones that fulfill the specifications of the
original part.
Fo r wheels, pay attention tothefo llowing:
R Designation
R Type
R Perm issible wheel load
R Wheel of fset
Fo r tires, pay attention tothefo llowing:
R Designation
R Manufacturer
R Type
R Load-bearing index
R Speed rating &
WARNING Risk of inju rythro ugh exceed‐
ing the specified tire load rating or the
permissible speed rating
Exceeding the specified tire load rating or the
permissible speed rating may lead totire
dama geand tothe tires bur sting. #
Therefore, only use tire types and sizes
appr ovedfo ryo ur vehicle model. #
Obser vethe tire load rating and speed
ra ting requ ired foryo ur vehicle. 324
Wheels and tires