2018 MERCEDES-BENZ S CLASS wheel

In th e eve nt of a fl at tire, th e fo llowing options
are av ailable depending on yo ur ve hicle's equip‐
ment: R
Ve hicles with MOExtended tires: it is pos‐
sible to continue th e journey fo r a short
period of time. Make sure yo u obse rv e th e
no te s on MOExtended tires (run-flat tires)
( →
page 394).R
Ve hicles with a TIREFIT kit: yo u can re pair
th e tire so th at it is possible to continue th e
jou rn ey fo r a short period of time. To do th is,
use th e TIREFIT kit ( →
page 395).R
Ve hicles with Mercedes-Benz
mbrace ®
(USA only): yo u can make a call fo r
Ro adside Assis ta nce via th e ove rh ead control
panel in th e case of a breakdown
( →
page 328).R
All ve hicles: ch ange th e wheel
( →
page 437). MOExtended tires (tires with ru n-flat proper‐
ties)
q
WA RNING Risk of accident when driving
in li mp -home mode
When driving in emergency mode th e han‐
dling ch aracteristics are impaired, e.g. when
cornering, when accelerating stro ng ly and
when braking.

R
If driving on, obser ve th e fo llowing no te s.
Driving distance possible in limp-home mode
af te r the pressure loss wa rn ing:
Load condition Driving distance pos‐
sible in limp-home
mode
Pa rt ially laden 50 miles (80 km)
Fu lly laden 19 miles (30 km)R
The driving dis ta nce possible in li mp -home
mode may va ry depending on th e driving
st yl e.R
Maximum permissible speed 50 mp h
(80 km/h).
If a tire has gone fl at and cannot be re placed
with an MOEx te nded tire, yo u can use a st and‐
ard tire as a te mp orary measure.
TIREFIT kit st orage location
The TIREFIT kit is located under th e trunk fl oor. Mercedes‑AMG ve hicles: obse rv e th e no te s in
th e Supplement. Otherwise, yo u may not re cog‐
nize dangers.
Plug-in hy brid: obser ve th e no te s in th e Supple‐
ment. Otherwise, yo u may not re cognize dan‐
ge rs .
1
Ti re sealant fi ller bottle
2
Ti re inflation compressor
Using th e TIREFIT kit
Ha ve th e fo llowing re adily av ailable:R
Ti re sealant fi ller bottle R
Enclosed TIREFIT st ic ke r R
Ti re inflation compressor R
Disposable gl ov es
Yo u can use TIREFIT tire sealant to seal punctu‐
re s of up to 0. 16 in (4 mm), particular ly th ose in
th e tire con ta ct su rf ace. Yo u can use TIREFIT in
outside te mp eratures down to -4 °F (-20 °C).
q
WA RNING Risk of accident when using
tire sealant.
In th e fo llowing situations, th e tire sealant is
unable to pr ov ide suf fi cient breakdown assis‐
ta nce, as it is unable to seal th e tire proper ly :R
There are cuts or punctures in th e tire
lar ge r th an th ose pr ev iously mentioned. R
The wheel ri m is dama ge d. R
Yo u ha ve driven at a ve ry low tire pres‐
sure or on a fl at tire.

Pe rm itted to wing me th ods
Ve hicle equipment/ to wing
me th od
Bo th axles on th e gr ound Fr ont axle ra ised Re ar axle ra ised
Ve hicles with automatic transmis‐
sion Ye s, maximum 31 miles (50 km) at
31 mp h (50 km/h) No Ye s, if th e st eering wheel is fi xe d in
th e center position with a st eering
wheel loc k.
4MATIC ve hicles Ye s, maximum 31 miles (50 km) at
31 mp h (50 km/h) No No
To wing wit h a ra ised axle: to wing should be
per fo rm ed by a to wing compan y.
To wing th e ve hicle with bo th axles on th e
gr ound

No ise or unusual handling ch aracteristics
While driving, pay attention to vibrations, noises
and unusual handling ch aracteristics, e.g. pulling
to one side. This may indicate th at th e wheels or
tires are damaged. If yo u suspect th at a tire is
defective, re duce yo ur speed immediatel y. St op
th e ve hicle as soon as possible to ch eck th e
wheels and tires fo r dama ge . Hidden tire dam‐
age could also be causing th e unusual handling
ch aracteristics. If yo u fi nd no signs of damage,
ha ve th e tires and wheels ch ec ke d at a qu alified
specialist wo rk shop.
Checking wheels and tires re gular ly
q
WA RNING Risk of accident from dam‐
aged tires
Dama ge d tires can cause tire pressure loss.
As a re sult, yo u could lose cont ro l of yo ur
ve hicle.

q
WA RNING Risk of accident caused by
re peated drop in tire pressure
If th e tire pressure drops re peatedl y, th e
wheel, va lv e or tire may be damaged.
Insuf fi cient tire pressure can cause th e tires
to bur st .

Fu rt her re lated subjects:R
No te s on tire pressure ( →
page 41 4)R
Ti re pressure ta ble ( →
page 41 6)R
Ti re and Loading In fo rm ation placard
( →
page 420)
Ti re pressure moni to ri ng sy st em
Fu nction of th e tire pressure moni to ri ng sys‐
te m
q
DA NG ER Risk of accident due to incor‐
re ct tire pressure
Every tire, including th e spare (if pr ov ided),
should be ch ec ke d when cold at least once a
month and inflated to th e pressure re com‐
mended by th e ve hicle manufacturer (see
Ti re and Loading In fo rm ation placard on th e
B-pillar on th e driver ’s side or th e tire pres‐
sure label on th e inside of th e fuel fi ller fl ap
of yo ur ve hicle). If yo ur ve hicle has tires of a
dif fe re nt size th an th e size indicated on th e
Ti re and Loading In fo rm ation placard or th e tire pressu re ta ble, yo u need to de te rm ine
th e proper tire pressure fo r th ose tires.
As an added saf et y fe ature, yo ur ve hicle has
been equipped with a tire pressure monitor‐
ing sy st em (TPMS) th at illuminates a low tire
pressure indicator lamp when one or more of
yo ur tires are sign if icantly underinflated.
Ac cording ly , if th e low tire pressure indicator
lamp lights up, yo u should st op and ch eck
yo ur tires as soon as possible, and inflate
th em to th e proper pressure. Driving on a
significant ly underinflated tire causes th e tire
to ove rh eat and can lead to tire fa ilure.
Und erinflation also increases fuel consump‐
tion and re duces tire tread life, and may
af fe ct th e ve hicle's handling and braking abil‐
ity. Please no te th at th e TPMS is not a substi‐
tute fo r proper tire maintenance, and it is th e
driver's re sponsibility to maintain cor re ct tire
pressure, ev en if underinflation has not
re ached th e le ve l to trig ge r illumination of
th e TPMS low tire pressure indicator lamp.
Yo ur ve hicle has also been equipped with a
TPMS malfunction indicator to indicate when th e sy st em is not operating properly. The
TPMS malfunction indicator is combined with
th e low tire pressure indicator lamp. When
th e sy st em de te cts a malfunction, th e indica‐
to r lamp will fl ash fo r app ro xima te ly a minute
and th en re main continuously illumina te d.
This sequence will continue upon subsequent
ve hicle st art-ups as long as th e malfunction
ex ists.
When th e malfunction indicator is illumina‐
te d, th e sy st em may not be able to de te ct or
signal low tire pressure as intended. TPMS
malfunctions may occur fo r a va ri et y of re a‐
sons, including th e ins ta llation of incompati‐
ble re placement or alternate tires or wheels
on th e ve hicle th at pr ev ent th e TPMS from
functioning proper ly .
Alw ay s ch eck th e TPMS malfunction wa rn ing
lamp af te r re placing one or more tires or
wheels on yo ur ve hicle to ensure th at th e
re placement or alternate tires and wheels
allow th e TPMS to continue to function prop‐
er ly .41 8
Wheels and tires

Ste p 1
Example 1E xa mp le 2
Combined maximum we ight of occupants and
load (data from th e Ti re and Loading In fo rm ation
placard) 15 00 lbs (680 kg )1 500 lbs (680 kg )
Ste p 2
Example 1E xa mp le 2
Numb er of people in th e ve hicle (driver and
occupants) 51
Distribution of th e occupant sF ro nt: 2
Re ar: 3 Fr ont: 1
We ight of occupant sO ccupant 1: 15 0 lbs (68 kg )
Occupant 2: 18 0 lbs (82 kg )
Occupant 3: 16 0 lbs (73 kg )
Occupant 4: 14 0 lbs (63 kg )
Occupant 5: 12 0 lbs (54 kg ) Occupant 1: 200 lbs (91 kg )
To ta l we ight of all occupant s7 50 lbs (340 kg )2 00 lbs (91 kg ) Wheels and tires 423

Preceding letter 1 :R
Wi th out: passenger ve hicle tires according to
European manufactu ri ng st andards.R
"P": passenger ve hicle tires according to US
manufacturing st andards.R
"LT": light truck tires according to US manu‐
fa cturing st andards.R
"T": compact emer ge ncy spa re wheels with
high tire pressure th at are on ly designe d fo r
te mp orary use in an emer ge ncy.
Aspect ra tio 3 :
Ra tio between tire height and tire width in per‐
cent (ti re height divided by tire width).
Tire code 4 (ti re type):R
"R" ra dial tireR
"D": bias ply tire R
"B": bias belted tires R
"ZR": ra dial tire with a maximum speed abo ve
14 9 mp h (240 km/h) (optional) Rim diame te r 5 :
The diam et er of th e bead seat (not th e diame te r
of th e ri m fl ange). The ri m diame te r is specified
in inches (in).
Load-bearing index 6 :
Numerical code th at specifies th e maximum
load-bearing capacity of a tire (e.g. "91" cor re ‐
sponds to 13 56 lbs (6 15 kg )).
The load-bearing capacity of th e tire must be at
least half th e permissible axle load of yo ur ve hi‐
cle. Do not ove rl oad th e tires by exc eeding th e
specified load limit.
See also: R
Maximum permissible load on th e Ti re and
Loading In fo rm ation placard ( →
page 420)R
Maximum tire load ( →
page 427)R
Load ind ex
Speed ra ting 7 :
Specifies th e appr ove d maximum speed of th e
tire.