2018 MERCEDES-BENZ E-CLASS CABRIOLET fuel pressure

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 436)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 during thefirs t jour‐
ney they are used. The tyre pressure and
the tyre temp erature
appear in the multifunction display
(→ page 438).
If th ere is a subs tantial pressure loss or if the
tyre temp erature is excessive, you will be
wa rned in thefo llowing ways:
R via display messa ges (→ page 508)
R viatheh warning lamp in the instrument
clus ter (→ page 536)
The tyre pressu remonitoring sy stem is only an
aid. 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
tau ght-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 439). Sy
stem limitations
The sy stem may be impaired or may not function
in thefo llowing situations:
R ifth e tyre pressure is set incor rectly
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 436)
Checking the ty repressure with the tyre
pressure moni toring sy stem
Requ irements:
R The ignition is switched on.
On-board computer: Service Tyres
One of thefo llowing displa ysappears:
R Cur rent tyre pressure and tyre temp erature
of the individual wheels: 438
Wheels and tyres

#
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
TEVehicle and tyre damage thro ugh
tyre types and sizes that ha venot been
appr oved Fo
r saf etyre asons, on lyuse tyres, wheels
and accessories which ha vebeen specially
appr ovedby Mercedes-Benz foryo ur vehicle.
These tyres are specially adap tedto the con‐
trol sy stems, such as ABS, ESP ®
and
4MATIC, and 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, such as handling,
ve hicle noise emissions, fuel consum ption,
et c. may otherwise be adversely af fected.
Fu rthermore, other tyre sizes could result in
th e tyres rubbing against the body and axle
components when loaded. This could result
in damage tothe tyre or theve hicle.
Only use tyres, wheels and accessories that
ha ve been checked and recommended by
Mercedes-Benz. *
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. 444
Wheels and tyres

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 byan 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 436)
R Tyre pressure table (→ page 437) R
Notes on the emer gency spa rewheel
(→ page 453) 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
may se verely impair the driving characteris‐
tics.
The disk brakes or wheel suspension compo‐
nents may also be damaged. #
Rotate front and rear wheels on lyifthe
wheels and tyres are of the same
dimensions. Inter
changing the front and rear wheels if the
wheels or tyres ha vediffere nt dimensions can
re nder thege neral operating pe rmit in valid. The
wear pat tern s on the front and rear wheels
dif fer:
R Front wheels wear more on the shoulder of
th e tyre
R Rear wheels wear more in the cent reofthe
tyre
On vehicles with the same front and rear wheel
size, you can inter change the wheels every
5,000 to10,000 km, depending on thewe ar.
Ensure the direction of rotation is maintained for
th e wheels.
It is imperative toobser vethe instructions and
saf ety no tes on "Changing a wheel" when doing
so Preparing theve hicle for a wheel
ch ange( →page 447). Note
s onstoring wheels When
storing wheels, obser vethefo llowing
no tes:
R Afterre moving wheels, store them in a cool,
dry and preferably dark place.
R Protect the tyres from conta ct withoil,
grease or fuel. 446
Wheels and tyres

Ð
Po
we r-assis tedsteering malfunction
(→ page 538)
à AIR
BODY CONTROL malfunction
(→ page 533)
à DY
NA MIC BODY CONTROL malfunc‐
tion (→ page 533) ;
Engine diagnostics (→
page 534)
% Preglow
# Electrical
fault( →page 534)
8 Fu
elreser vewith fuel filler cap loca‐
tion indicator (→ page 534) ?
Coolant
too hot/cold (→ page 534)
h Ty
re pressure monitor (→ page 536)
ï Tr
ailer hit chis not operational or is
swivelling (→ page 538) Saf
ety sy stems Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
! Re d indicator lamp, elect ric
parking brake applied
!
Ye llow elect ric pa rking
brake indicator lamp is mal‐
functioning The
red elect ric pa rking brake indicator lamp flashes or is lit. The yellow indicator lamp is also lit if the electric parking
brake malfunctions. #
Obser vethe messages on the multifunction displa y. Displ
aymessa ges and warning/indicator lamps 527

¯
AdBlue sy stem fault Perf.
re duced: XXX mph No start in XXX
miles .................................................. .505
¯ AdBlue sy stem fault See Own‐
er's Manual ........................................ .504
4Ad d 1 litre engine oil when next
re fuelling ............................................. 503
Air conditioning Malfunction See
Owner's Manual .................................. 520
Apply brake todeselect Park (P)
position ...............................................5 07
App lybrake toselect R ....................... 508
ÀAT TENTION ASSIST inoperative ... 492
ÀAT TENTION ASSIS T:Take a
break! .................................................. 488
bAu tomatic driving lights inoper‐
ative .................................................... 524
Au xilia rybattery malfunction .............. 508
Beginning emer gency stop .................. 484 Blind Spot Assist cur
rently una vaila‐
ble See Owner's Manual ...................... 494
Blind Spot Assist inope rative ............... 488
Blind Spot Assi stnot available when
to wing a trailer See Owner's Manual ...4 91
Cann otstart engine See Owner's
Manual ................................................ 498
ÁChan gekey bat teries ...................5 14
J Check brake fluid le vel................ 477
Check brake pads See Owner's Man‐
ual ...................................................... .486
4Che ckeng. oil le v.when next
re fuelling ............................................. 503
ïChe cktrailer hitch lo ck(white
display message) .................................5 18
Check tyre pressures then restart
Ru n Flat Indicator ................................. 512
h Check tyre(s) .............................. .510
! Clean the fuel filter ...................... 497
J Close boot separator .................. 522 K
Convertible Top Operation pos‐
sible to60 km/h ................................. 522
?Coolant Stop vehicle Switch
engine off ............................................ 499
Cruise contro l and Limiter inope ra‐
tive ...................................................... 494
Cruise control inope rative ................... 494
Cruise control off ................................ 493
!cu rrently unavailable See Own‐
er's Manual .......................................... 479
÷ currently una vailable See Own‐
er's Manual .......................................... 473
5 Engine oil le vel cannot be
measured ............................................ 501
4Engine oil le velRe duce oil le vel...5 01
4 Engine oil le velSt op vehicle
Switch engine off ................................. 501
4Engine oil pressure Stop Switch
off engine ............................................ 502 Index
551

ÛPlease
wait Charging high- volt‐
age battery .......................................... 500
PRE- SAFE inoperati veSee Owner's
Manual ................................................ 483
Ra dar sensors dirty See Owner's
Manual .................................................4 78
_ Rear left seat backrest not
loc ked (Example) .................................. 51 5
h Rectify tyre pressure ....................51 0
Re duce speed ...................................... 512
Ø Refill Ad Blue Eng. start not pos‐
sible .................................................... 504
ØRe fill Ad Blue See Owne r’s Man‐
ual .......................................................5 04
!Re lease parking brake .................476
¸ Replace air cleaner ...................... 497
ÀRe placekey See Owner's Man‐
ual ........................................................ 514
Á Replace key ................................ .513
8 Reser vefuel le vel........................ 500 6Re
stra int sys. malfunction Con‐
sult workshop ...................................... 486
Re versing not poss. Consult work‐
shop ....................................................5 07
Risk of vehicle rolling Driver door
open and transmission not in P ...........507
Ru n Flat Indicator inope rative .............. 512
# See Owner's Manual ................... 496
Speed limit (winter tyres) XXX km/h ... 494
ÐSt eering malfunction Incre ased
ph ysical ef fort See Owner's Manual .....516
Ð Steering malfunction Stop
immediately See Owner's Manual ........516
St op vehicle Lea veengine running
Wa itTransmission cooling ...................506
#St opvehicle Lea veengine run‐
ning ..................................................... 497
#St opvehicle See Owner's Man‐
ual .......................................................4 98
ÉSt opvehicle Vehicle too low ........ 491 çsuspended
..................................4 93
bSwitch off lights .......................... 523
bSwitch on headla mps.................. 524
To shift out of P or N,depress brake
and start engine .................................. 507
K Top lo wering ............................... 522
ØTo p upAdBlue Perf.re duced in
XXX miles See Owner's Manual ...........506
Ø Top up AdBlue Perf.re duced:
XXX km/h Nostart in XXX km ............ 505
To p up coolant See Owner ’sManual ... 497
¥To p upwasher fluid ...................... 51 8
Tr af fic Sign Assi stCamera view
re stricted See Owner's Manual ........... 490
Tr af fic Sign Assi stcur rently una vaila‐
ble See Owner's Manual ...................... 489
Tr af fic Sign Assi stinope rative ............. 488
ïTr ailer coupling extending… .........51 5
Tr ansmission Malfunction Stop ........... 506 Index
553

Setting
the time and date automati‐
cally ..................................................... 291
Setting the time zone .......................... 291
Setting the time/date form at .............. 291
Swit ching transmission of theve hicle
position on/off .................................... 292
Sy stem settings
see Blue tooth®
see Data import/export
see Language
see Software update
see Wi-Fi T
Ta ilpipes (Care) ........................................ 407
Ta ke -back of end-of-life vehicles .............. 19
Pr otection of the environment ............... 19
Ta nk content
Ad Blue ®
............................................... 464
Fu el ..................................................... 463
Re ser ve(fuel) ...................................... 463
Te ch nical data
Axle load (trailer operation) ................. 471
Fa stening points (trailer hitch) .............4 70Information .......................................... 455
Mounting dimensions (trailer hitch) ..... 470
No tes (trailer hitch) ............................. 470
Overhang dimension (trailer hitch) ...... 470
To ngue weight ...................................... 471
To wing capacity (trailer operation) ...... 470
Ty re pressure monitoring sy stem ........ 440
Ve hicle identification plate .................. 457
Te lephone ........................................ .262, 331
Ac tivating functions du ring a call ........ 339
Business telephony settings ................ 336
Call and ringtone volume .................... .338
Calls with se veral participants ............ .339
Connecting a mobile phone (busi‐
ness telephony) .................................. .334
Connecting a mobile phone (Near
Field Communication (NFC)) .............. .337
Connecting a mobile phone (Pass‐
ke y) .................................................... .332
Connecting a mobile phone (Secu re
Simple Pairing) .................................... 332
De-authorising a mobile phone ............ 337
Disconnecting a mobile phone ............ 337
Importing con tacts .............................. 341
Importing contacts (o verview) ............ .341 Incoming call during an
existing call .... 339
Information .......................................... 332
Inter changing mobile phones .............. 336
Locking theve hicle (mobile phone) .......77
Menu (on-board computer) .................. 262
Mobile phone voice recognition .......... 338
No tes .................................................. 330
Operating modes ................................. 332
Re ception and transmission volume .... 338
St arting theve hicle (mobile phone) ..... 15 8
Switching mobile phones (Near Field
Communication (NFC)) ........................ 337
Symbols for business telephony .......... 335
Te lephone menu overview ...................3 31
Te lephone operation ............................ 338
Un locking theve hicle (mobile phone) ....77
Using a SIM card for business tel‐
ephony ................................................ 334
Using Near Field Communication
(NFC) .................................................. .337
Vo ice commands (LINGU ATRO NIC) ...... 274
Wi reless charging (mobile phone) ........ 12 5
Te lephone
see Second telephone 574
Index