2018 MERCEDES-BENZ E-CLASS CABRIOLET change wheel

Emergency
Re moving the saf etyve st
The saf etyve sts are located in the saf etyve st
compart ments in the driver's and front
passenger door stowage compartments.
00BBToremo ve:pull out safe tyvest bag 1by
loop 2.
00BBOpen saf etyve st bag 1and pull out the
saf etyve st.
1Maximum number of washes
2Maximum wash temp erature
3Do not bleach
4Do not iron
5Do not use a laundry dr yer
6Do not dr y-clean
7This is a class 2 vest
The requ irements defined bythe legal standard
are only fulfille difth e saf etyve st isthe cor rect
size and is fully closed. Re
place the saf etyve st if:
Rit is damaged or dirt on there flective strips
can no longer be remo ved
Rthe maximum number of washes is exceeded
Rthefluorescence of the saf etyve st has faded
Flat tire
Note s onflat tires
0071
WARNING Risk of accident due toaflat
tire
A flat tire se verely affects the driving charac‐
te rist ics as well as thesteering and braking
of theve hicle.
Ti re s without run-flat characteristics:
00BBDo not drive on with a flat tire.
00BBChange theflat tire immediately with
th e emer gency spa rewheel or spare
wheel. Alternativel y,consult a qualified
specialist workshop.
Ti re s with run-flat characteristics:
332
Breakd own assist ance

00BBObservethe information and warning
no tes on MOExtended tires (run-flat
tires).
In theeve nt of a flat tire, thefo llowing options
are available depending on your vehicle's equip‐
ment:
RVe hicles with MOExtended tires: it is pos‐
sible tocontinue the journey for a short
period of time. Make sure you observ eth e
no tes on MOExtended tires (run-flat tires)
(
→page 333).
RVe hicles with a TIREFIT kit: you can repair
th e tire so that it is possible tocontinue the
journ eyfor a short period of time. Todo this,
use the TIREFIT kit (
→page 334).
RVe hicles with Mercedes-Benz
mbrace®(USA only): you can make a call for
Ro adside Assis tance via theove rhead control
panel in the case of a breakdown
(
→page 282).
RAll vehicles: change the wheel
(→page 377).
MOEx tended tires (run-flat tires)
0071
WARNING Risk of accident when driving
in li mp-home mode
When driving in emergency mode the han‐
dling characteristics are impaired, e.g. when
cornering, when accelerating stronglyand
when braking.
00BBDo not exceed the specified maximum
speed.
00BBAv oid any abrupt steering and driving
maneuvers as well as driving over
obs tacles (curbs, pot holes, off-road).
This applies, in part icular,toa loaded
ve hicle.
00BBStop driving in the emer gency mode if
yo u notice:
Rbanging noise
Rvehicle vibration
Rsmoke which smells like rubber
Rcontinuous ESP®inter vention
Rcrac ksin tire side walls
00BBAfter driving in emergency mode ha ve
th erims checkedby aqu alified special‐
ist workshop with rega rd totheir fur ther
use.
00BBThe defective tire must be replaced in
eve rycase.
With MOExtended tires (run-flat tires), you can
continue todrive your vehicle even if there is a
tot al loss of pressure in one or more tires. How‐
eve r,th e tire af fected must not show any clearly
visible damage.
Yo u can recognize MOExtended tires bythe
MOExtended marking which appears onthe side
wa ll of the tire.
Ve hicles with tire pressure loss warning sys‐
te m: MOExtended tires may only be used in con‐
junction wi than activated tire pressure loss
wa rning sy stem.
Ve hicles with tire pressure monitoring sys‐
te m: MOExtended tires may only be used in con‐
junction wi than activated tire pressure monitor‐
ing sy stem.
Breakdown assis tance 333

0071WARNING Risk of injury and poisoning
from tire sealant
The tire sealant is harmful and causes ir rita ‐
tion. Do not allow it tocome into contact
wi th th e skin, eyes or clo thing, and do not
swallow it. Do not inhale tire sealant fumes.
Ke ep the tire sealant away from children.
If yo u come into contact withth e tire sealant,
obser vethefo llowing:
00BBRinse off the tire sealant from your skin
immediately using water.
00BBIf tire sealant gets into your eyes, thor‐
oughly rinse out theey es using clean
wate r.
00BBIf tire sealant has been swallowe d,
immediately rinse out the mouth thor‐
oughly and drink plenty of water.Do not
induce vomiting and seek medical
attention immediately.
00BBChange out of any clo thes conta mina‐
te d with tire sealant immediatel y.
00BBIf allergicreactions occur, seek medical
attention immediatel y.
0075NO
TEOverheating due tothe tire infla‐
tion compressor running too long
00BBDo not runth e tire inflation compressor
fo r longer than ten minu tes without
inter ruption.
Comply with the manufacturer's saf etyno tes on
th est icke r on the tire inflation compressor.
Ha ve the tire sealant bottle replaced in a quali‐
fi ed specialist workshop every five years.
00BBDo not remo veany fore ign objects which
ha ve entered the tire.
00BBAf fix pa rt1 ofthe TIREFIT sticke rto the
instrument clus ter within the driver's field of
vision.
00BBAf fix pa rt2 ofthe TIREFIT sticke r near the
va lve on the wheel with the defective tire.
00BBPull plug 4with the cable and hose 5out
of the tire inflation compressor housing.
Breakdown assis tance 335

Tire pressure
Note s on tire pressure
0071
WARNING Risk of accident due toinsuf‐
fi cient or excessive tire pressure
Underinfla ted or overinfla ted tires pose the
fo llowing risks:
RThe tires may bur st, especially as the
load and vehicle speed increase.
RThe tires may wearexc essively and/or
une venly, which may greatlyimpair tire
traction.
RThe driving characteristics, as well as
st eering and braking, may be greatly
impaired.
00BBComply with there commended tire
pressure and check the tire pressure of
all tires including the spare wheel regu‐
larly:
Rat least once a month
Rwhen the load changes
Rbefore embarking on a longe r journey
Rif operating conditionschange, e.g. off-
ro ad driving
00BBAd just the tire pressure as necessar y.
Driving withtire pressure that is too high or too
low can:
RSho rten the service life of the tires.
RCause increased tire damage.
RAd versely af fect driving characteristics and
th us dr iving saf ety, e.g. due toaquaplaning.
0071
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.
00BBAv oid excessively low tire pressures in
all the tires, including the spare wheel.
Tire pressure which is too low can cause:
RTire defects as a result of overheating
RImpaired handling characteristics
RIrre gular wear
RIncreased fuel consum ption
0071
WARNING Risk of accident from exces‐
sive tire pressure
Ti re s with excessively high pressure can
bur stbecause 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.
00BBAv oid excessively high tire pressures in
all the tires, including the spare wheel.
Excessively high tire pressure can result in:
RIncreased braking dis tance
RImpaired handling characteristics
RIrre gular wear
354
Wheels and tires

The system checks the tire pressure and the tire
te mp erature of the tires fitted totheve hicle by
means of a tire pressure sensor.
New tire pressure sensors, e.g. in winter tires,
are automatically taught-in thefirs t time they are
driven.
The tire pressure and the tire temp erature
appear in the multifunction display
(
→page 202).
If th ere is a subs tantial pressure loss or if the
tire temp erature is excessive, a warning will be
given:
RVi a display messages (→page 425).
RViath e0077 warning lamp in the instrument
clus ter (→page 459).
It is the driver's responsibility toset the tire
pressure tothere commended cold tire pressure
suitable forth e operating situation. Set the tire
pressure for cold tires using a tire pressure
ga uge. Notethat the cor rect tire pressure forth e
cur rent operating situation must firs t be taught-
in to the tire pressure monitoring sy stem. In most cases,
the tire pressure monitoring sys‐
te m will auto matically 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 mon

itoring
sy stem manually (→page 359).
Sy stem limitations
The sy stem may be impaired or may not function
in thefo llowing situations:
RIf th e tire pressure is set incor rectly.
RIfth ere is a sudden pressure loss caused, for
ex ample, byafo re ign object penetrating the
tire.
RIf th ere is a malfunction caused byano ther
ra dio signal source.
Make sure toobser vethefo llowing fur ther rela‐
te d subjec t:
RNotes on tire pressure (→page 354)
Checking the tire pressure with the tire pres‐
sure moni toring sy stem
Requ irement:
RThe ignition is switched on. On-board computer:
00866HUYLFH00CF7LUHV
One of thefo llowing displa ysappears:
RCur rent tire pressure and tire temp erature of
th e individual wheels:
R7LUH SUHVVXUH ZLOO EH GLVSOD\HG DIWHU GULYLQJ D
IHZ PLQXWHV
R7LUH 3UHVVXUH 0RQLWRU $FWLYH: thete ach-in
process of the sy stem is not yet comple te.
The tire pressures are already being moni‐
to re d.
00BBCompare the tire pressure with there com‐
mended tire pressure forth e cur rent operat‐
358
Wheels and tires

ingstatus (→page 355). Observ eth e no tes
on tire temp erature (→page 354).
00CE 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 pressure gauges 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 subjec t:
RNotes on tire pressure (→page 354)
Rest arting the tire pressure moni toring sys‐
te m
Requ irement:
RTherecommended tire pressure is cor rectly
set forth ere spective operating condition on
each of thefo ur wheels (
→page 354).
Re start the tire pressure monitoring sy stem in
th efo llowing situations:
RThe tire pressure has changed.
RThe wheels or tires ha vebeen changed or
newly ins talled.
On-board computer:
00866HUYLFH00CF7LUHV
00BBSwipe down wards on theTo uch Control on
th e left-hand side of thesteering wheel.
The 8VH &XUUHQW 3UHVVXUHV DV 1HZ 5HIHU
HQFH 9DOXHV message is shown in the multi‐
function displa y.
00BBPress0076toconfirm there start.
The 7LUH 3UHVV 0RQLWRU 5HVWDUWHG message is
shown 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‐
sure s are within the specified range. The cur‐
re nt tire pressures are then accep ted as ref‐
erence values and monitored.
Make sure toobser vethefo llowing fur ther rela‐
te d subjec t:
RNotes on tire pressure (→page 354) Ra
dio-equipment appr oval of the tire pres‐
sure moni toring sy stem
Ra dio equipment appr oval numbers
Countr yRadio equipment appr oval
number
Canada
USA FCC ID: MRX
AG5SP4
FCC ID: MRXMFR
IC: 2546A -AG5SP4
Fu rther information on the declaration of con‐
fo rm ity for wireless vehicle components
(
→page 23).
Ti re pressure loss warning sy stem
Fu nction of the tire pressure loss warning
sy stem
The tire pressure loss warning sy stem warnsth e
driver bymeans of display message s whenthere
is a se vere tire pressure loss.
Af ter a change in tire pressure, a wheel rotation
or a wheel change, the tire pressure loss warn‐
Wheels and tires 359

ing system has tobe taught-in again bybeing
re star ted (→page 360).
The tire pressure loss warning sy stem does not
re place the need toregularly check the tire pres‐
sures.
Sy stem limitations
The sy stem may be impaired or may not function
in thefo llowing situations:
RIf th e tire pressure is set incor rectly.
RIfth ere is a sudden pressure loss caused, for
ex ample, byafo re ign object penetrating the
tire.
RIf th e pressure loss in se veral tires decreases
at the same rate.
The sy stem has a limited or dela yed function:
RWhen thero ad sur face is poo r,e.g. snow or
gr ave l.
RWhen driving with snow chains.
RWhen driving in a very sporty driving style
with high cornering speeds or sudden accel‐
eration.
RWhen driving with a high load. Be sure
toalso observ eth efo llowing fur ther
re lated subjects:
RNo tes on tire pressure (→page 354)
RDisplay messages about the tires
(→page 425)
Re starting the tire pressure loss warning
sy stem
Re quirement:
RThe recommended tire pressure is cor rectly
set forth ere spective operating condition on
each of thefo ur wheels (
→page 354).
On-board co mputer:
00866HUYLFH00CF7LUHV
The 5XQ )ODW ,QGLFDWRU $FWLYH3UHVV
2.
WR
5HVWDUW message is sho w
nin the multifunction
displa y.
Re start the tire pressure loss warning sy stem in
th efo llowing situations:
RThe tire pressure has changed.
RThe wheels or tires ha vebeen changed or
newly ins talled.
00BBPress 0076tobegin the new start.
The 7LUH 3UHVVXUH 1RZ 2." message is
shown in the multifunction displa y.
00BBSelect<HV.
00BBPress0076toconfirm there start.
The 5XQ )ODW ,QGLFDWRU 5HVWDUWHG message is
shown in the multifunction displa y.
Af teryo u ha vedriven for a few minutes, the
tire pressure losswarning sy stem monitors
th e set tire pressures of all the tires.
Be sure toalso observ eth efo llowing fur ther
re lated subjects:
RNo tes on tire pressure (→page 354)
Loading theve hicle
Tire and Loading Information placard
0071
WARNING Risk of accident from overloa‐
ded tires
Overloaded tires may overheat and bur stas a
consequence. Overloaded tires can also
360 Wheels and tires

Only use tires, wheels or accessoriestested
and appr ovedby Mercedes-Benz.
0075 NO
TERisk todriving saf etyfrom retrea‐
ded tires
Re treaded tires are nei ther tested nor recom‐
mended byMercedes-Benz, since pr evious
damage cannot alw ays be de tected on
re treaded tires.
Fo rth is reason driving saf etycanno tbe guar ‐
anteed.
00BBDo no tuse used ti res if you ha veno
information about their pr evious usage.
0075 NO
TEPossible damage towheels or tires
when driving over obs tacles
Large wheels ha vea lo wer tire section wid th.
The lo werth e tire section width, the greater
is therisk of damage towheels or tires when
driving over obs tacles.
00BBAv oid obs tacles or drive part icularly
carefully.
0075 NO
TEDama getoelectronic component
parts from the use of tire-mounting tools
Ve hicles with a tire pressure monitoring
sy stem: Electronic component parts are
located in the wheel. Tire -mounting tools
should not be used in the area of theva lve.
This could otherwise damage the electronic
component parts.
00BBHa ve the tires changed at a qualified
specialist workshop onl y.
0075NO
TEDama getosummer tires at low
ambient temp eratures
Using summer tires at very low ambient tem‐
peratures can cause crac kstoform ,th ereby
damaging the tires permanentl y.
00BBAttemp eratures below 45 °F (7 °C) use
M+S tires.
Ac cessory part sth at are not appr ovedfo ryo ur
ve hicle byMercedes-Benz or are not being used
cor rectly can impair the operating saf ety. Before purc
hasing and using non-appr oved
accessori es, visit a qualified specialist workshop
and enquire about:
RSuitability
RLegal stipulations
RFa ctory recommendations
0071
WARNING Risk of accident wi thhigh
per form ance tires
The special tire tread in combination with the
optimized tire compound means that therisk
of skidding or hydroplaning on wetro ads is
inc reased.
In addition, the tire grip is greatly reduced at
a low outside temp erature and tire running
te mp erature.
00BBSwitch on the ESP®and adapt your
dr iving style accordingly.
00BBUse M+S tire at outside temp eratures
of less than 10 °C (50 °F).
374
Wheels and tires