service MERCEDES-BENZ E-CLASS CABRIOLET 2017 Repair Manual

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

Note
s ontech nical data
The tech nical da tawa s de term ined in accord‐
ance with EU Directives. The data stated on ly
applies tovehicles with standard equipment. Yo u
can obtain fur ther information from a Mercedes-
Benz Service Centre.
Only for ce rtain countries: you can find vehi‐
cle-specific vehicle data in the COC documents
(CERTIFIC ATE OF CONFORMITY). These docu‐
ments are deli vered with your vehicle. On-board electronics
Note
s on tampering with the engine elec‐
tronics *
NO
TEPremature wearthro ugh improper
main tenance Improper maintenance may cause
vehicle
components towe ar more quickly and the
ve hicle's operating permit may be in valida‐
te d. #
Alw ays ha vewo rkon the engine elec‐
tronics and related components car ried
out at a qualified specialist workshop. Tw
o-w ayradios Note
s onfitting two-w ayradios &
WARNING Risk of accident due to
improper workon two-w ayradios
The elect romagnetic radiation from two-w ay
ra dios can inter fere with the on-board elec‐
tronics if RF transmit ters are manipulated or
re trofitted inco rrectly.
This could jeopardise the operating saf ety of
th eve hicle. #
You should ha veall workon electrical
and electronic components car ried out
at a qualified specialist workshop. &
WARNING Risk of accident from incor‐
re ct ope ration of two-w ayradios
If yo u operate two- wayra dios inco rrectly in
th eve hicle, the electromagnetic radiation
could inter fere with the on-board electronics,
e.g.:
R ifth e two-w ayradio is not connec tedto
an exterior aerial
R ifth eex terior aerial is not cor rectly
mounted or is not of low reflection
This could jeopardise the operating saf ety of
th eve hicle. #
Have the lo w-reflection exterior aerial
fi tted at a qualified specialist workshop. #
When operating two-w ayradios in the
ve hicle, alw ays connect them tothe
lo w- reflection exterior aerial. 404
Tech nical da ta

*
NO
TEDama gecaused bythe wrong fuel Even small amounts of
the wrong fuel could
re sult in damage tothe fuel sy stem, the
engine and the emission control sy stem. #
Only refuel using premium-grade unlea‐
ded fuel that con form sto EN 228, or an
equi valent specification.
Fu el of this specification may con tain up to
10 %ethanol. Your vehicle is suitable for use
with E10 fuel.
Do not refuel using:
R Diesel
R E85, E100
R Petrol containing me thanol (M15, M30,
M85, M100)
R Petrol wi thadditives con taining me tal
If yo u accidentally refuel with the wrong fuel: #
Do not switch the ignition on. #
Consult a qualified specialist workshop. Re
commended fuel: there commended octane
number foryo ur vehicle can be found in the
information table in the fuel filler flap
(→ page 153).
If th eav ailable fuel is not suf ficiently low in sul‐
phu r,th is can produce unpleasant odours.
Alternative fuel: as atemp orary measure, if the
re commended fuel is not available, you may also
use regular unleaded regular petrol with an
octane number of at least 91RON. This may
re duce engine output and increase fuel con‐
sum ption.
Ne verre fuel using fuel with a lo werRO N.
Fu rther information on fuel can be found:
R Atafilling station
R Ataqu alified specialist workshop
Information on additives in petrol
Obser vethe no tes on operating fluids
(→ page 408). *
NO
TEDama gecaused bynon-app roved
additives Even small amounts of
the wrong additive
may lead tomalfunctions occur ring. #
Only add cleaning additives recommen‐
ded byMercedes-Benz tothe fuel. Mercedes-Benz
recommends that you use fuel
brands that ha veadditives.
The fuel grade available in some countries may
not be suf ficient. Residue could build up in the
fuel injection sy stem as a result. In this case, in
consultation with a Mercedes-Benz Service
Cent re,th e fuel may be mixed with the cleaning
additive recommended byMercedes-Benz.
Alw ays obser vethe no tes and mixing ratios
speci fied on the conta iner.
Information on fuel grades forve hicles with
a diesel engine
Gene ral no tes
Obser vethe no tes on operating fluids
(→ page 408). 41 0
Tech nical da ta

*
NO
TEEngine dama gecaused byan
incor rect oil filter, incor rect oil or addi‐
tives #
Do not use engine oils or oil filters
which do not cor respond tothe specifi‐
cations explicitly prescribed forthe
service inter vals. #
Do not alter the engine oil or oil filter in
order toachie velonger change inter vals
th an presc ribed. #
Do not use additives. #
Have the engine oil rene we d at regular
inter vals. Mercedes-Benz
recommends that you ha vethe
oil change car ried out at a qualified specialist
wo rkshop.
Only Mercedes-Benz appr oved engine oils may
be used in Mercedes-Benz engines.
Fu rther information on engine oils and oil filters:
R inthe Mercedes-Benz Specifications for
operating fluids at http://be vo.mercedes-
benz.co m (by en tering the designation) R
at a qualified specialist workshop
Pet rol engines: For cer tain countries, dif fere nt
engine oils can be used in conjunction wi th
re duced maintenance inter vals. For more infor‐
mation, please contact a qualified specialist
wo rkshop.
Quality and filling capacity of engine oil
MB- Freigabe or MB -Appr oval Pe
trol engine sM B-Freigabe or MB-
Appr oval
All models 229.5, 229.6 MB-F
reigabe or MB-Appr oval Diesel engine
sMB-Freigabe or MB-
Appr oval
E 350 d 4MATIC 228.5 1,229.3 1,
229.5 1,229.52
All other models 228.51 , 229.31,
229.5 1,229.52,
229.6 1,229.71 If
th e engine oils lis ted in theta ble are not avail‐
able, you may add a maximum of 1.0 lof thefo l‐
lowing engine oils once only:
R Petrol engines: MB-Freigabe or MB-Appr oval
229.3 or ACEA A3/B3
R Diesel engines: MB-Freigabe or MB-
Appr oval 229.3, 229.5 or ACEA C3
The following values referto an oil change,
including the oil filter.
Re placement amount Mode
lR eplacement
amount
E 200
E 300 7.
0 l
E 350 d 4MATIC 8.0 l
All other models 6.5 l Note
s on brake fluid Obser
vethe no tes on operating fluids
(→ page 408). Te
ch nical da ta413

Display messages
Int
roduction Note
s on display messages
Display messages appear in the multifunction
displa y.
Displ aymessa ges with graphic symbols are sim‐
plified in the Owner's Manual and may dif fer
from the symbols in the multifunction displa y.
The multifunction display sho wshigh-priority dis‐
play messages in red. Cer tain display messages
are accompanied byawa rning tone.
Please respond in accordance with the display
messages and follow the additional no tes in this
Owner's Manual. Information on
Idisplay messages can be dis‐
pla yed on the left-hand Touch Control.
Yo u can hide a number of the lo w-priority display
messages:
R bypressing Xon the left-hand Touch Control
R bypressing the% button
The display messages are then stored in the
messa gememor y.Re ctify the cause of a display
message as quickly as possible.
High-priority display messages cannot be hid‐
den. The multifunction display sho ws these mes‐
sages continuously until the cause forth e mes‐
sage has been rectified. Calling up
stored displ aymessages
On-boa rdcompu ter:
, Service .
1 message
If th ere are no display messages, No messages
appears in the multifunction displa y. #
Scroll thro ugh the display messages byswip‐
ing upwards or down wards on Touch Control
on the left-hand side of thesteering wheel. #
Toexitth e message memor y:press the
% button. Display messages and
warning/indicator lamps 419

Display messages
Possible causes/consequences and M
MSolutions
? Coolant Stop vehicle
Switch engine off *T
he coolant is too hot. #
Stop theve hicle immediately, paying attention toroad and traf fic conditions, and switch off the engine. &
WARNING Danger of bu rns when opening the bonn et
If yo u open the engine bonn etwhen the engine has overheated or during a fire inthe engine compartment, you
could come into contact wi thhot gases or other escaping operating fluids. #
Before opening the bonn et, allow the engine tocool down. #
Intheeve nt of a fire inthe engine compartment, keep the engine bonn etclosed and call thefire service. #
Wait until the engine has cooled down. #
Make sure that the air supply tothera diator is not obstructed. #
Avoiding high loads on the engine, drive on tothe nearest qualified specialist workshop. In doing so, ensure that
th e coolant temp erature display remains below 120 °C. 432
Displaymessa ges and warning/indicator lamps

Display messages
Possible causes/consequences and M
MSolutions
, Replace key See Owner's
Manual *
Ve hicles with a digital vehicle key:only a few or no authorisations remain forst arting the engine. #
Make sure that the Internet connection is not limited bycer tain mobile phone settings. #
Open the Mercedes me connect web App http://www.mercedes.me. and call up the "digital vehicle key"
service. #
Deactivate the service firs t and then activate it again. #
Ifth e display message still appears, con tact the Mercedes-Benz Cus tomer Assis tance Center (C AC).
 Change key batteries *T
hekey bat tery is dischar ged. #
Replace the battery .
Â
Key not detected (white
display message) *T
hekey is cur rently und etected. #
Change the location of theke y in theve hicle. #
Ifth eke y is still not recognised, start the engine with theke y in thestow age compartment . 446
Displaymessa ges and warning/indicator lamps

Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
? Coolant warning lamp The
red coolant warning lamp is lit while the engine is running.
Po ssible causes:
R The temp erature sensor is malfunctioning
R Coolant le velto o low
R The air supply tothera diator is obstructed
R The radiator fan is faulty
If th ere is an additional warning tone, the coolant temp erature has exceeded 120 °C. &
WARNING Danger of bu rns when opening the bonn et
If yo u open the engine bonn etwhen the engine has overheated or during a fire inthe engine compartment, you
could come into contact wi thhot gases or other escaping operating fluids. #
Before opening the bonn et, allow the engine tocool down. #
Intheeve nt of a fire inthe engine compartment, keep the engine bonn etclosed and call thefire service. #
Stop theve hicle immediately, paying attention toroad and traf fic conditions, and switch off the engine. Do not con‐
tinue driving under any circums tances. #
Obser vethe messages in the multifunction displa y.
If th e coolant temp erature display is at the lo wer end of thete mp erature scale: #
Consult a qualified specialist workshop. Display messages and
warning/indicator lamps 475

Ad
justing the balance/ fader
Burmes ter®
sur round sound sy stem ... 343
Ad justing the sound focus
Burmes ter®
sur round sound sy stem ... 344
Ad versewe ather light ............................ .118
Af ter-sales service centre
see ASS YST PLUS
AIR BODY CONT ROL................................ .191
Setting ................................................. 19 3
Suspension .......................................... 191
Air conditioning sy stem
see Climate control
Air distribution ........................................ 12 9
Air freshener sy stem
see Frag rance sy stem
Air suspension see AIR BODY CONTROL
Air vents ................................................... 13 8
Ad justing (front) .................................. 13 8
Ad justing (rear) .................................... 13 9
Ad justing the AIRSCARF vents ............. 14 0
Glo vebox .............................................1 39Air
vents
see Air vents
Ai r-re circulation mode ............................ 13 2
Airbag ........................................................ .32
Ac tivation .............................................. 26
Fr ont airbag ...........................................32
Head airbag ........................................... 32
Ins tallation locations ............................ .32
Knee airbag ........................................... 32
Overview ............................................... 32
Pr otection ..............................................33
Re duced pr otection ...............................34
Side impact airbag ................................ 32
AI RC AP
Ac tivating .............................................. 80
Deactivating .......................................... 80
Ai rflow ...................................................... 12 9
AIRS CARF
Switching on/off ................................... 97
AIRS CARF vents
Ad justing ............................................. 14 0
Alarm see Panic alarm Alarm sy
stem
see ATA (anti-theft alarm sy stem)
Alternative route
see Route
Ambient lighting ...................................... 121
Android Auto ............................................ 304
Connecting a mobile phone ................. 304
Ending ................................................. 305
Overview ............................................. 304
To ne settings ....................................... 305
Tr ans ferred vehicle data ......................3 05
Animals Pets in theve hicle ................................. 58
Anti-lock braking sy stem
see ABS (Anti-lock Braking Sy stem)
Anti-theft alarm sy stem
see ATA (anti-theft alarm sy stem)
Anti-theft pr otection
Ad ditional door lock .............................. 63
Immobiliser ...........................................84
Anti-theft pr otection
see ATA (anti-theft alarm sy stem) 480
Index

Anticipatory occupant pr
otection
see PRE- SAFE®
(anticipatory occu‐
pant pr otection)
see PRE-SAFE ®
PLUS (anticipatory
occupant pr otection plus)
Apple CarPlay™ ....................................... 303
Connecting an iPhone ®
....................... 303
Ending .................................................3 04
Overview ............................................. 303
To ne settings ....................................... 304
Tr ans ferred vehicle data ......................3 05
Ashtr ay
Fr ont centre console ........................... 108
Re ar .................................................... .109
Assistance graphic
Menu (on-boa rdcompu ter) ................. .229
Assistance sy stems
see Driving saf ety sy stem
ASS YST PLUS ........................................... 345
Battery disconnection pe riods .............3 46
Displ aying the service due date ........... 345
Fu nction/no tes ................................... 345
Re gular service work ........................... 345
Special service requ irements .............. 345 ATA
(anti-theft ala rmsystem) .................. 84
Deactivating the alarm .......................... 85
Fu nction ................................................ 84
Fu nction of interior pr otection ............... 86
Fu nction of tow- aw ay protection ........... 85
AT TENTION ASSI ST.......................... 209, 210
Ac tivating/deactivating ...................... .210
Fu nction .............................................. 209
Sy stem limitations ...............................2 09
At tention assistant
see ATTENTION ASSIST
Au dio mode
Ac tivating media mode ........................ 320
Connecting USB devices ..................... 323
Co pyright ............................................. 320
Information .......................................... 319
Inserting/removing an SD card ...........3 20
Media sea rch ....................................... 326
Overview ............................................. 322
Pa use and playback function .............. .323
Selecting a track ................................. 323
Selecting playba ckoptions .................. 323
Tr ack list .............................................. 323 Au
thorised workshop
see Qualified specialist workshop
Au tomatic distance control
see Dis tance Pilot DISTRONIC
Au tomatic driving lights ..........................11 5
Au tomatic engine start (ECO start/
sto p function) .......................................... 14 6
Au tomatic engine stop (ECO start/
sto p function) .......................................... 14 6
Au tomatic front passen ger airbag
shu toff
see Front passenger airbag shutoff
Au tomatic mir rorfo lding function
Ac tivating/deactivating ...................... .127
Au tomatic transmission
DIRECT SELECT le ver ........................... 14 9
Drive prog ram display ......................... .148
Drive programs ................................... .148
DY NA MIC SELECT switch .................... 14 8
Engaging drive position ........................ 151
Engaging reve rsege ar ........................ .150
Kickdown ............................................. 15 2
Manual gearshifting ............................ .151 Index
481