warning MERCEDES-BENZ E-CLASS CABRIOLET 2017 Owners Manual

The tyre pressure
table sho ws there commended
tyre pressure for all tyres appro vedfo rth is vehi‐
cle. The recommended tyre pressures apply for
cold tyres under various operating conditions,
i.e. loading and/or speed of theve hicle.
If one or more tyre sizes precede a tyre pres‐
sure, the tyre pressure information following is
only valid forth ose tyre sizes. If
th e preceding tyre sizes are complemented by
th e+ symbol, the tyre pressure information
fo llowing sho wsalternative tyre pressures.
These tyre pressures may impr oveyour vehicle's
ri de comfort. Fuel consum ption may then
increase slightl y.
The load conditions "partially laden" and "fully
laden" are defined in theta ble for dif fere nt num‐
be rs of passengers and amounts of luggage. The
actual number of seats may dif fer from this.
Be sure toalso obse rveth efo llowing fur ther
re lated subjects:
R Notes on tyre pressure (→ page 385) Ty
re pressure moni toring sy stem Fu
nction of the ty repressure moni toring sys‐
tem
The sy stem checks the tyre pressure and the
tyre temp erature of the tyres fitted totheve hicle
by means of a tyre pressu resensor.
New tyre pressure sensors, e.g. in winter tyres,
are automatically taught-in thefirs t time they are
driven. The tyre pressure appears in
the multifunction
display (→ page 228).
If th ere is a subs tantial pressure loss or if the
tyre temp erature is excessive, a warning will be
given:
R Via display messages (→ page441).
R Viath eh warning lamp in the instrument
clus ter (→ page 477).
It is the driver's responsibility toset the tyre
pressure tothere commended cold tyre pressure
suitable forth e operating situation. Set the tyre
pressure for cold tyres using a tyre pressu re
ga uge. Notethat the cor rect tyre pressure for
th e cur rent operating situation mu stfirs t be
ta ught-in tothe tyre pressure monitoring sys‐
te m.
In most cases, the tyre pressure monitoring sys‐
te m will auto matically update the new refere nce
va lues af teryo u ha vechanged the tyre pressure.
Yo u can, ho wever,also update there fere nce val‐
ues byrestarting the tyre pressure monitoring
sy stem manually (→ page 388). Wheels and tyres
387

Sy
stem limitations
The tyre pressure monitoring sy stem does not
issue a warning:
R Ifth e tyre pressure is set incor rectl y.
R Ifth ere is a sudden pressure loss caused, for
ex ample byafo re ign object penetrating the
tyre.
R Ifth ere is a malfunction caused byano ther
ra dio signal source.
Make sure toobser vethefo llowing fur ther rela‐
te d subjec t:
R Notes on tyre pressure (→ page 385)
Checking the ty repressure with the tyre
pressure moni toring sy stem
Re quirement:
R The ignition is switched on.
On-board computer: , Service .
Tyre pressure
One of thefo llowing displa ysappears:
R Cur rent tyre pressure of ea chwheel: R
Tyre pressures will be displayed after a few
minutes of driving
R Tyre pressure monitor active: thete ach-in
process of the sy stem is not yet compl ete.
The tyre pressures are already being moni‐
to re d. #
Compare the tyre pressure with there com‐
mended tyre pressure forth e cur rent operat‐
ing condition (→ page 386). Obse rvethe
no tes on tyre temp erature (→ page 385).
% The values displa yed in the multifunction dis‐
play may deviate from those of the tyre pres‐
sure gauge as they referto sea le vel.At high
altitudes, the tyre pressure values indicated by
pressure gauges are higher than those
shown bythe on-board computer. In this
case, do not reduce the tyre pressure.
Make sure toobser vethefo llowing fur ther rela‐
te d subjec t:
R Notes on tyre pressure (→ page 385)
Rest arting the ty repressure moni toring sys‐
tem
Requ irement:
R The recommended tyre pressure is cor rectly
set forth ere spective operating condition on
each of thefo ur wheels (→ page 385).
Re start the tyre pressure monitoring sy stem in
th efo llowing situations:
R The tyre pressure has changed.
R The wheels or tyres ha vebeen changed or
newly fitted. 388
Wheels and tyres

On-board computer:
, Service .
Tyre pressure #
Swipe down wards on theTo uch Control on
th e left-hand side of thesteering wheel.
The Use current pressures as new reference
values message is shown in the multifunction
displa y. #
Press atoconfirm there start.
The Tyre press. monitor restarted message is
shown in the multifunction displa y.
Cur rent wa rning messages are dele ted and
th eh yellow warning lamp goes out.
Af teryo u ha vedriven for a few minutes, the
sy stem checks whe ther the cur rent tyre pres‐
su res are within the specified range. The cur‐
re nt tyre pressures are then accep ted as ref‐
erence values and monitored.
Make sure toobser vethefo llowing fur ther rela‐
te d subjec t:
R Notes on tyre pressure (→ page 385)Ra
dio-type appr oval of the ty repressure
moni toring sy stem
Ra dio equipment appr oval numbers Countr
yRadio equipment appr oval
number
Abu Dhabi TRA REGISTERED NO: ER3 7156/15.
DEALER NO: DA00470 74/10
Argentina AFTIC:H1 4788
Duba iT RA
REGI STERED NO: ER3 7156/15.
DEALER NO: DA00470 74/10
European
Union Hereb
y,Schrader Electronics
Ltd., declares that this TPMS is in
compliance with the essential
re qu irements and other pr ovi‐
sions of directive 1999/5/EC.
The declaration of conformity
may be consul ted at emcteam@
schrader.co.uk Countr
yRadio equipment appr oval
number
Jordan Kingdom of Jordan Type appr oval
fo rTy re Pressure sensor.
Manufacturer: Schrader Elect ron‐
ics Ltd. Model: AG5SP4
Ty pe Appr oval Numb er:
TRC/LPD/20 15/21
Kingdom of Jo rdan Type appr oval
fo rTy re Pressure sensor.
Manufacturer: Schrader Elect ron‐
ics Ltd. Model: MFR
Ty pe Appr oval Numb er:
TRC/LPD/20 15/223
Mal aysia RCDD/04A/0 615/S(15-2095)
Morocco AGREE PAR L'ANRT MA ROC
Nume rod'agrement :MR 10216
ANRT 20 15
Date d'agrement :18/3/20 15 Wheels and tyres
389

Count
ryRadio equipment appr oval
number
Радіопередав ачмоделі MFR
системи контролю тиск ув
шині ав томобіля відповідає
вимогам Технічного
регламент урадіообладнання і
телек омунікаційног окінцевого
(термінального )обладнання
(Постанов аКМУ № 679від 24
червня 2009р.)Декларація
відповідн ості знах одиться на
са йті Schrader Electronics та
надається за запит омна
елек трону адре суemc‐
te [email protected]
Uni ted
Arab Emi‐
ra tes TRA
REGISTERED NO :ER3
7156/15.
DEALER NO:DA00470 74/10 Brazil
Es
te equipamento opera em caráter secundário,
is to é, não tem direito à pr oteção contra inter fer‐
ência prejudicial, mesmo de es tações do mesmo
tipo, e não pode causar inter ferê ncia a si stemas
operando em caráter primário. Vi
etnam Ty
re pressure loss warning sy stem Fu
nction of the ty repressure loss warning
sy stem
The tyre pressure loss warning sy stem warnsthe
driver bymeans of display messa ges when there
is a se vere tyre pressu reloss.
Af ter a change in tyre pressure, a wheel rotation
or a wheel change, the tyre pressure loss warn‐
ing sy stem has tobe taught-in again bybeing
re star ted (→ page 392). Wheels and tyres
391

The tyre pressure loss
warning sy stem does not
re place the need toregularly check the tyre
pressures.
Sy stem limitations
The tyre pressure loss warning sy stem does not
issue a warning:
R Ifth e tyre pressure is set incor rectl y.
R Ifth ere is a sudden pressure loss caused, for
ex ample byafo re ign object penetrating the
tyre.
R Ifth e pressure loss in se veral tyres decrea‐
ses at the same rate.
The tyre pressure loss warning sy stem has a
limited or dela yed function:
R When thero ad sur face is poo r,e.g. snow or
gr ave l.
R When driving with snow chains.
R When driving in a very sporty driving style
with high cornering speeds or sudden accel‐
eration.
R When towing a very heavy or large trailer.
R When driving with a high load. Be sure
toalso obse rveth efo llowing fur ther
re lated subjects:
R Display messages about the tyres
(→ page 441)
R Notes on tyre pressure (→ page 385)
Re starting the ty repressure loss warning
sy stem
Re quirement:
R The recommended tyre pressure is cor rectly
set forth ere spective operating condition on
each of thefo ur wheels (→ page 385).
On-board co mputer:
, Service .
Tyre pressure
The Run Flat Indicator activeRestart with OK
message is shown in the multifunction displa y.
Re start the tyre pressure loss warning sy stem in
th efo llowing situations:
R The tyre pressure has changed.
R The wheels or tyres ha vebeen changed or
newly fitted. #
Press atobegin the new start.
The Tyre pressure now OK? message is
shown in the multifunction displa y. #
Select Yes. #
Press atoconfirm there start.
The Run Flat Indicator restarted message is
shown in the multifunction displa y.
Af teryo u ha vedriven for a few minutes, the
tyre pressu reloss warning sy stem monitors
th e set tyre pressures of all the tyres.
Be sure toalso obse rveth efo llowing fur ther
re lated subjects:
R Notes on tyre pressure (→ page 385) Wheel
change Note
s on selecting, fitting and replacing
tyres Yo
u can ask for information rega rding permit ted
wheel/tyre combinations at a Mercedes-Benz
Service Cent re. 392
Wheels and tyres

&
WARNING Risk of accident due toincor‐
re ct dimensions of wheels and tyres
If wheels and tyres of the wrong size are
used, the wheel brakes or wheel suspension
components may become damaged. #
Alw aysre place wheels and tyres with
th ose that fulfil the specifications of the
original part.
When replacing wheels, make sure tofit the
cor rect:
R Designation
R Type
When replacing tyres, make sure tofit the
cor rect:
R Designation
R Manufactu rer
R Type &
WARNING Risk of inju rythro ugh exceed‐
ing the specified tyre load-bearing capa‐
city or the permissible speed rating
Exceeding the specified tyre load-bearing
capacity or the permissible speed rating may
lead totyre dama geand tothe tyres bur st‐
ing. #
Therefore, only use tyre types and sizes
appr ovedfo ryo ur vehicle model. #
Obser vethe tyre load-bearing capacity
ra ting and speed rating requ iredfor
yo ur vehicle. *
NO
TEDama getovehicle and tyres due
to non-app rove d tyre types and sizes Fo
r saf etyre asons, on lyuse wheels, tyres
and accessories which ha vebeen appr oved
fo ryo ur vehicle byMercedes-Benz. These tyres ha
vebeen specially adap tedfor
use with the control sy stems, e.g. ABS or
ESP ®
, and are mar ked as follo ws:
R MO = Mercedes-Benz Original
R MOE = Mercedes-Benz Original Extended
(run-flat tyres only for cer tain wheels)
R MO1 = Mercedes-Benz Original (only cer‐
tain AMG tyres)
Cer tain characteristics, e.g. handling, vehicle
noise emissions or fuel consum ption, may
ot herwise be adversely af fected. In addition,
when driving wi tha load, tyre dimension var‐
iations could cause the tyres tocome into
contact wi th the body and axle components.
This could result in damage tothe tyres or
th eve hicle.
Only use tyres, wheels or accessories tested
and appr oved byMercedes-Benz. Wheels and tyres
393

*
NO
TERisk todriving saf ety from retrea‐
ded tyres Re
treaded tyres are nei ther tested nor rec‐
ommended byMercedes-Benz, since pr evi‐
ous damage cannot alw ays be de tected on
re treaded tyres.
Fo rth is reason driving saf ety cannot be guar‐
anteed. #
Do not use used tyres if you ha veno
information about their pr evious usage. *
NO
TEPossible damage towheels or
tyres when driving over obs tacles Lar
gewheels ha vea lo wer tyre section width.
The lo werth e tyre section width, the greater
is therisk of damage towheels or tyres when
driving over obs tacles. #
Avoid obs tacles or drive pa rticular ly
carefully. *
NO
TEDama getoelectronic component
parts from the use of tyre-fitting tools Ve
hicles with a tyre pressure monitoring
sy stem: electronic component parts are
located in the wheel. Tyre-fitting tools should
not be applied in the area of theva lve.
The tools could damage the electronic com‐
ponent parts. #
Have the tyres changed at a qualified
specialist workshop onl y. *
NO
TEDama getosummer tyres at low
ambient temp eratures Using summer tyres at
very low ambient
te mp eratures can cause crac kstoform,
th ereby damaging the tyres permanentl y. #
Attemp eratures below 7 °C use M+S-
tyres. Ac
cessory pa rts th 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 pu
rchasing and using non-appr oved
accesso ries, visit a qualified specialist workshop
and enquire about:
R Suitability
R Legal stipulations
R Factory recommendations &
WARNING Risk of accident wi thhigh
per form ance tyres
The special tyre tread in combination with
th e optimised tyre compound, means that
th erisk of skidding or hydroplaning on wet
ro ads is inc reased.
In addition, the tyre grip is greatly reduced at
a low outside temp erature and tyre running
te mp erature. #
Switch on the ESP ®
and adapt your
driving style accordingly. #
Use M+S tyres at outside temp eratures
of less than 50 °F. 394
Wheels and tyres

Obser
vethefo llowing when selecting, fitting and
re placing tyres:
R Countr y-specific requirements for tyre
appro valth at define a specific tyre type for
yo ur vehicle.
Fu rthermore, the use of cer tain tyre types in
cer tain regions and areas of operation can
be highly beneficial.
R Only use tyres and wheels of the same type
(summer tyres, winter tyres, MOEx tended
tyres) and the same make.
R Only fit wheels of the same size on one axle
(left and right).
It is only permissible tofit a di fferent wheel
size in theeve nt of a flat tyre in order to
drive tothe specialist workshop.
R Only fit tyres of the cor rect size onto the
wheels.
R Do not make any modifications tothe brake
sy stem, the wheels or the tyres.
The use of shims or brake dust shields is not
permitted and may in validate theve hicle's
ge neral operating pe rmit. R
Vehicles with a tyre pressure monitoring
sy stem: Allfitted wheels mu stbe equipped
with functioning sensors forth e tyre pres‐
sure monitoring sy stem.
R Attemp eratures below 7 °C, use winter tyres
or all-season tyres mar ked M+S for all
wheels.
Wi nter tyres bearing thei snowflake
symbol in addition tothe M+S marking pro‐
vide the best possible grip in wintry road
conditions.
R For M+S tyres, only use tyres with the same
tread.
R Obser vethe maximum permissible speed for
th e M+S tyres fitted.
If th is is below theve hicle's maximum speed,
th is must be indicated in an appropriate label
in the driver's field of vision.
R Run in new tyres at moderate speeds forthe
fi rs t10 0 km.
R Replace the tyres af ter six years at the latest,
re ga rdless of wear. R
When replacing with tyres that do not
fe ature run-flat characteristics: Vehicles
with MOExtended tyres are not equipped
with a TIREFIT kit at thefa ctor y.Equip the
ve hicle with a TIREFIT kit af terre placing with
tyres that do not feature run-flat characteris‐
tics, e.g. winter tyres.
Fo r more information on wheels and tyres, con‐
ta ct a qualified specialist workshop.
Be sure toalso obse rveth efo llowing fur ther
re lated subjects:
R Notes on tyre pressure (→ page 385)
R Tyre pressure table (→ page 386)
R Notes on the emer gency spa rewheel
(→ page 402) Note
s on inter changing wheels &
WARNING Risk of inju rythro ugh dif fer‐
ent wheel sizes
Inter changing the front and rear wheels if the
wheels or tyres ha vediffere nt dimensions Wheels and tyres
395

#
Using the wheel spanner, loosen the wheel
bolts on the wheel you wish tochange by
about one full turn. Do not unscr ewthe
scr ews comple tely. Po
sition of jack support points &
WARNING Risk of inju ryfrom incor rect
positioning of the jack
If yo u do not position the jack cor rectly at
th e appropriate jacking point of theve hicle,
th e jack could tip with theve hicle raised. #
Only position the jack at the appropri‐
ate jacking point of theve hicle. The
base of the jack must be positioned ver‐
tically under the jacking point of the
ve hicle. *
NO
TEVehicle damage from the jack If
yo u do not position the jack cor rectly at
th e appropriate jack support point of the
ve hicle, the jack could tip over with theve hi‐
cle raised. #
The jack is designed exclusively for
jacking up theve hicle at the jack sup‐
port points. #
Take thera tchet ring spanner out of the tyre-
ch ange tool kit and place it on the he xagon
nut of the jack so that the letters AUF are
visible. Wheels and tyres
399

&
WARNING Risk of accident from losing a
wheel
Oiled, greased or damaged wheel bolt/wheel
nut thre ads or wheel hub/wheel mounting
bolt thre ads can cause the wheel bolts/
wheel nuts tocome loose.
As a result, you could lose a wheel while driv‐
ing. #
Never oil or grease theth re ads. #
Intheeve nt of damage totheth re ads,
con tact a qualified specialist workshop
immediatel y. #
Have the damaged wheel bolts or dam‐
aged hub thre ads replaced. #
Do not continue driving. #
Obser vethe information on thech oice of
tyres (→ page 392).
Fo r tyres with a specified direction of rotation,
an ar rowonthe side wall of the tyre indicates
th e cor rect di rection of rotation. Obse rvethe
direction of rotation when fitting. #
Slide the wheel tobe mounted onto the cen‐
tring pin and push it on. &
WARNING Risk of inju ryfrom tightening
wheel bolts and nuts
If yo u tighten the wheel bolts or wheel nuts
when theve hicle is raised, the jack could tip. #
Only tighten wheel bolts or wheel nuts
when theve hicle is on the ground. #
For saf etyre asons, on lyuse wheel bolts
which ha vebeen appr ovedfo r Mercedes-
Benz and the wheel in question. #
Tighten the wheel bolts until they are finger-
tight. #
Unscr ew the cent ring pin. #
Tighten the last wheel bolt until it is finger-
tight. #
Lowe rth eve hicle (→ page 401). Lo
weri ngtheve hicle af ter a wheel change Re
quirement:
R The new wheel has been fitted (→ page 400). #
Place thera tchet ring spanner onto the he xa‐
gon nut of the jack so that the letters "AB"
are visible. #
Tolowe r the vehicle: turnthera tchet ring
spanner of the jack anti-clockwise. #
Tighten the wheel bolts evenly in a crosswise
pattern in the sequence indicated (1 to5 ).
Specified tightening torq ue: 150 Nm. Wheels and tyres
401