2018 MERCEDES-BENZ E CLASS Owners Manual

Fu rt her re lated subjects:R
No te sont ir ep re ssur e( →
pag e3 56)R
Ti re pressur et able ( →
pag e3 57 )R
Ti re and Loading In fo rm atio np lacard
( →
pag e3 61 )
Ti re pressur em oni to ri ng sy st em
Fu nction of th et ir ep re ssur em oni to ri ng sys‐
te m
q
DA NG ER Risk of acciden td ue to incor‐
re ct tir ep re ssure
Ever yt ire, including th es par e( if pr ov ided),
should be ch ec ke dw hen cold at leas to nc ea
mont ha nd inflated to th ep re ssur er ecom‐
mended by th ev ehicle manufacturer (see
Ti re and Loading In fo rm atio np lacar dont he
B-pi llar on th ed ri ve r’ ss ide or th et ir ep re s‐
sur el abel on th ei nside of th ef uel 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 es ize indicated on th e
Ti re and Loading In fo rm atio np lacar dort he tir ep re ssur et able, yo un ee dtod et ermine
th ep ro per tir ep re ssur ef or th ose tires.
As an added saf et yf eature, yo ur ve hicle has
been equipped wit hat ir ep re ssur em onitor‐
ing sy st em (TPMS) th at illuminates al ow tire
pressur ei ndicator lam pw hen on eorm or eo f
yo ur tires ar es ign if icantl yu nderinflated.
Ac cordingly ,ift he lo wt ir ep re ssur ei ndicator
lam pl ights up, yo us hould st op and ch eck
yo ur tires as soo nasp ossible, and inflate
th em to th ep ro per pressure. Driving on a
significantly underinflated tir ec auses th et ire
to ove rh eat and can lead to tir ef ailure.
Und erinflation also increases fuel consump‐
tion and re duces tir et re ad life, and may
af fe ct th ev ehicle's handling and braking abil‐
ity .P lease no te th at th eT PMS is no tas ubsti‐
tut ef or proper tir em aintenance, and it is th e
driver's re sponsibility to maintain cor re ct tire
pressure, eve nifu nderinflatio nh as not
re ached th el ev el to trig ge ri llumination of
th eT PMS lo wt ir ep re ssur ei ndicator lamp.
Yo ur ve hicle has also been equipped wit ha
TPMS malfunction indicator to indicat ew hen th es ys te misn ot operating properly .T he
TPMS malfunction indicator is combined with
th el ow tir ep re ssur ei ndicator lamp. When
th es ys te md et ects am alfunction, th ei ndica‐
to rl amp wil lf lash fo ra pp ro xima te ly am inute
and th en re main continuously illumina te d.
This sequence will continue upon subsequent
ve hicle st art-ups as lon gast he malfunction
ex ists.
When th em alfunction indicator is illumina‐
te d, th es yst em ma yn ot be able to de te ct or
signal lo wt ir ep re ssur easi ntended. TPMS
malfunctions ma yo ccu rf or av ariety of re a‐
sons, includin gt he ins ta llation of incompati‐
ble re placemen tora lternat et ires or wheels
on th ev ehicle th at pr eve nt th eT PMS from
functioning properly.
Alw ay sc hec kt he TPMS malfunction wa rn ing
lam pa ft er re placing one or mor et ires or
wheels on yo ur ve hicle to ensur et hat th e
re placemen tora lternat et ires and wheels
allo wt he TPMS to continu etof unction prop‐
er ly . Wheels and tires 359

The sy st em ch ec ks th et ir ep re ssur ea nd th et ire
te mp eratur eoft he tires fi tted to th ev ehicle by
means of at ir ep re ssu re sensor.
Ne wt ir ep re ssur es ensors, e.g. in winter tires,
ar ea utomaticall yt aught-in th ef ir st tim et he ya re
driven.
The tir ep re ssur ea nd th et ir et emperature
appear in th em ultifunction display
( →
pag e2 06).
If th er eisas ubs ta ntia lp re ssure loss or if th e
tir et emperatur eise xc essive, aw arning will be
given: R
Vi ad ispla ym essages ( →
pag e4 26 ).R
Vi at he w wa rn ing lam pint he instrument
clus te r( →
pag e4 56).
It is th ed ri ve r's re sponsibility to se tt he tire
pressur etot he re commended cold tir ep re ssure
suitable fo rt he operating situation. Se tt he tire
pressur ef or cold tires using at ir ep re ssu re
ga uge. No te th at th ec or re ct tir ep re ssur ef or th e
cur re nt operating situatio nm us tf ir st be ta ught-
in to th et ir ep re ssur em onitoring sy st em. In mos tc ases, th et ir ep re ssur em onitoring sys‐
te mw il la utom atically updat et he ne wr eference
va lues af te ry ou ha ve ch anged th et ir ep re ssure.
Yo uc an ,h ow ev er ,a lso updat et he re fe re nce va l‐
ues by re st artin gt he tir ep re ssur em onitoring
sy st em manuall y( →
pag e3 61 ).
Sy st em limitations
The sy st em ma ybei mp air ed or ma yn ot function
in th ef ollowing situations: R
If th et ir ep re ssur eiss et incor re ctly.R
If th er eisas udden pressur el oss caused, fo r
ex ample, by af oreign object penetratin gt he
tire. R
If th er eisam alfunction caused by ano th er
ra dio signal source.
Mak es ur etoo bser ve th ef ollowing fur th er re la‐
te ds ubjec t: R
No te sont ir ep re ssur e( →
pag e3 56)
Checking th et ir ep re ssur ew it ht he tir ep re s‐
sur em oni to ri ng sy st em
Requ irement: R
The ignition is switched on. On-boar dc omputer:

ing st atus ( →
pag e3 57 ). Obse rv et he no te s
on tir et emperatur e( →
pag e3 56).

Ste p1
Example 1E xa mp le 2
Combine dm aximum we ight of occupant sa nd
load (dat af ro mt he Ti re and Loading In fo rm ation
placard) 15 00 lbs (680 kg )1 500 lbs (680 kg )
Ste p2
Example 1E xa mp le 2
Numb er of people in th ev ehicle (driver and
occupants) 51
Distribution of th eo ccupant sF ro nt :2
Re ar :3 Fr ont :1
We ight of occupant sO ccupant 1: 15 0l bs (68 kg )
Occupant 2: 18 0l bs (82 kg )
Occupant 3: 16 0l bs (7 3k g)
Occupant 4: 14 0l bs (63 kg )
Occupant 5: 12 0l bs (5 4k g) Occupant 1: 200 lbs (9 1k g)
To ta lw eight of all occupant s7 50 lbs (340 kg )2 00 lbs (9 1k g)364
Wheels and tires

Ste p3
Example 1E xa mp le 2
Pe rm issible load (maximum gros sv ehicle we ight
ra ting from th eT ir ea nd Loading In fo rm ation
placar dm inus th eg ro ss we ight of all occupants) 15 00 lbs (680 kg )

Ti re labeling
Overvie woft ir el abeling
1
Uni fo rm Ti re Quality Grading St andard
( →
pag e3 66 )
2
DO T, Ti re Identification Nu mber
( →
pag e3 67 )
3
Maximu mt ir el oa d( →
pag e3 68)
4
Maximu mt ir ep re ssu re ( →
pag e3 69) 5
Manufacturer6
Characteristics of th et ir e( →
pag e3 69)7
Ti re size designation, load-bea ri ng capacity,
speed ra ting and load ind ex ( →
pag e3 69)8
Ti re name