2017 MERCEDES-BENZ E-Class CABRIOLET Electric

Problems with fuel and the fuel tank
ProblemPossible causes/consequences andMSolutions
Fuel is leaking from the
vehicle.GWARNING
The fuel line or the fuel tank is faulty.
Risk of explosion or fire.
XApply the electric parking brake.
XSwitch off the engine.
XRemove the SmartKey from the ignition lock.
or, on vehicles with KEYLESS‑GO:
XOpen the driver's door.
The on-board electronics now have status 0. This is the same as the
SmartKey having been removed.
XDo not restart the engine under any circumstances.
XConsult a qualified specialist workshop.
The fuel filler flap cannot
be opened.The fuel filler flap is not unlocked.
XUnlock the vehicle (Ypage 73).
The SmartKey battery is discharged or nearly discharged.
XUnlock the vehicle using the mechanical key (Ypage 75).
The fuel filler flap is unlocked, but the opening mechanism is jammed.
XConsult a qualified specialist workshop.
Parking
Important safety notes
GWARNING
Flammable material such as leaves, grass or
twigs may ignite if they come into contact with
hot parts of the exhaust system or exhaust
gas flow. There is a risk of fire.
Park the vehicle so that no flammable mate-
rials come into contact with parts of the vehi-
cle which are hot. Take particular care not to
park on dry grassland or harvested grain
fields.
GWARNING
If you leave children unsupervised in the vehi-
cle, they could set it in motion by, for example:
Rrelease the parking brake.
Rshift the automatic transmission out of the
parking position P.
Rstart the engine.
In addition, they may operate vehicle equip-
ment and become trapped. There is a risk of
an accident and injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
!Always secure the vehicle correctly against
rolling away. Otherwise, the vehicle or its driv-
etrain could be damaged.
144Parking
Driving and parking

Drinking anddrivin g
GWARNING
Drinking and drivin gand/o rtaking drugs and
drivin gare ver ydangerous combinations.
Even asmall amount of alcoho lor drugs can
affec tyour reflexes, perception sand judg-
ment.
The possibilit yof aserious or eve nfatal acci-
den tis greatly increase dwhen you drink or
take drugs and drive.
Do no tdrink or take drugs and drive or allow
anyon eto drive who has bee ndrinkin gor tak-
in g drugs.
Emission contro l
GWARNING
Combustion engines emi tpoisonous exhaus t
gases suc has carbon monoxide. Inhaling
these exhaus tgases lead sto poisoning. There
is aris kof fatal injury. Therefor enever leav e
th eengin erunning in enclose dspaces with-
out sufficien tventilation .
Certain engin esystems are designed to keep
th elevel of poisonous component sin exhaus t
fumes within lega llimits.
These systems only wor kat peak efficiency if
they are serviced exactly in accordance wit hth e
manufacturer's specifications. Always hav e
wor kon th eengin ecarrie dout at aqualified
specialis tworkshop .Mercedes-Ben zrecom -
mends that you use an authorized Mercedes -
Benz Cente rfo rthis purpose. In particular, wor k
relevant to safet yor on safety-related systems
mus tbe carrie dout at aqualified specialis t
workshop .
The engin esetting smus tno tbe changed under
any circumstances. Furthermore, all specific
servic ewor kmus tbe carrie dout at regular
intervals and in accordance wit hth eMercedes -
Benz servic erequirements .Details can be found
in th eMaintenance Booklet .
ECO display
The ECOdisplay provides feedback on how eco-
nomical your drivin gcharacteristics are .The
EC Odisplay assist syou in achievin gth emost
economical drivin gstyle fo rth eselecte dset -
ting sand prevailin gconditions. Your drivin g
style can significantly influenc eth evehicle' s
consumption .
The EC Odisplay consist sof three bars:
RAcceleration
RConstant
RCoasting
The percent valu eis th eaverag evalu eof th e
three bars. The three bar sand th emea nvalu e
begin at th evalu eof 50%. Ahigher percentage
indicates amore economical drivin gstyle.
The EC Odisplay doe sno tindicat eth eactual fue l
consumption . Afixed percentage count in th e
EC Odisplay doe sno tindicat e afixed consump -
tion .
Apart from drivin gstyle, consumption is
dependen ton man yfactors suc has, e.g. :
Rload
Rtire pressure
Rcold start
Rchoiceof rout e
Relectrical consumers switched on
These factors are no tincluded in th eEC Odis -
play.
The evaluation of your drivin gstyle is carrie dout
usin gth efollowin gthree categories:
Driving tips147
Driving and parking
Z

Drivingwit hDISTRONI CPLUS
Pullin gawa yan ddrivin g
XIf you wan tto pull awa ywit hDISTRONI C
PLUS :remov eyour foot from th ebrake pedal.
XBriefly pull th ecruise contro llever toward s
you :.
or
XAccelerat ebriefly.
Your vehicle pulls away and adapt sits speed
to that of th evehicle in front.
If no vehicle is detecte din front, your vehicle
accelerates to th eset speed.
The vehicle can also pull away when it is facin g
an unidentifie dobstacl eor is drivin gon adiffer-
en tlin efrom another vehicle. The vehicle then
brake sautomatically.
If there is no vehicle in front, DISTRONIC PLU S
operates in th esam eway as cruise control.
If DISTRONIC PLU Sdetects that th evehicle in
fron thas slowed down ,it brake syour vehicle. In
this way, th edistanc eyou hav eselecte dis main -
tained.
If DISTRONIC PLU Sdetects afaster-movin g
vehicle in front, it increase sth edrivin gspeed.
However, th evehicle is only accelerated up to
th espeed you hav estored.
Selecting th edrive program
DISTRONIC Plus supports asport ydrivin gstyle
when you hav eselecte dth eS or Mdrivin gpro -
gram (
Ypage 137). Acceleration behin dth e
vehicle in fron tor to th eset speed is then notice -
ably more dynamic .If you hav eselecte dth eE
drivin gprogram, th evehicle accelerates more
gently. Thi ssetting is recommended in stop-
and-start traffic .
Changinglanes
If you chang eto th epassin glane, DISTRONIC
PLU Ssupports you when :
Ryou are drivingfaste rthan 45 mph (70 km/h)
RDISTRONIC PLU Sis maintainin gth edistanc e
to avehicle in fron t
Ryou switch on th eappropriat eturn signal
RDISTRONIC PLU Sdoe sno tdetec t adanger of
collision
If these condition sare fulfilled, your vehicle is
accelerated. Acceleration will be interrupted if
changin glanes take sto olon gor if th edistanc e
between your vehicle and th evehicle in fron t
becomes to osmall.
iWhe nyou chang elanes, DISTRONIC PLU S
monitors th elef tlan eon left-hand-drive vehi-
cles or th eright lan eon right-hand-driv evehi-
cles.
Stopping
GWARNING
Whe nleavin gth evehicle, eve nif it is brake d
only by DISTRONIC PLUS, it could roll away if:
Rthere is amalfunction in th esyste mor in
th evoltage supply.
RDISTRONIC PLU Shas bee ndeactivated
wit hth ecruise contro llever, e.g. by avehi-
cl e occupant or from outsid eth evehicle.
Rth eelectrical system in th eengin ecom-
partment, th ebattery or th efuses hav e
bee ntampered with.
Rth ebattery is disconnected.
Rth eaccelerator peda lhas bee ndepressed,
e.g. by avehicle occupant .
There is aris kof an accident.
If you wish to exit th evehicle, always turn of f
DISTRONIC PLU Sand secure th evehicle
against rollin gaway.
Fo rfurther information on deactivatin g
DISTRONIC PLU S (
Ypage 158).
If DISTRONIC PLU Sdetects that th evehicle in
fron tis stopping, it brake syour vehicle until it is
stationary.
Once your vehicle is stationary, it remain ssta-
tionary and you do no tneed to depress th e
brake .
156Driving systems
Driving an d parking

Deactivating Steering Assistand Stop&Go
Pilot
XDeactivat eth eDISTRONIC PLU Swit hSteer -
in g Assis tand Stop&Go Pilo tfunction usin g
th eon-boar dcomputer (
Ypage 197).
The DTR+: Steering Assistant Offmes-
sage appears in th emultifunction display.
Steerin gAssis tand Stop&Go Pilo tare deac -
tivated.
Whe nDISTRONIC PLU Sis deactivated or no t
available, Steerin gAssis tand Stop&Go Pilo tare
deactivated automatically.
HOL Dfunction
General notes
The HOLD function can assist th edriver in th e
following situations:
Rwhen pullin gaway, especially on steep slopes
Rwhen maneuverin gon steep slopes
Rwhen waitin gin traffic
The vehicl eis kept stationary without th edriver
havin gto depress th ebrak epedal.
The brakin geffec tis canceled and th eHOLD
function deactivated when you depress th e
accelerato rpeda lto pull away.
Important safet ynotes
GWARNIN G
Whe nleavin gth evehicle, it can still rol laway
despit ebein gbraked by th eHOLD function if:
Rthere is amalfunction in th esystem or in
th evoltag esupply.
Rth eHOLD function has been deactivated by
pressing th eaccelerato rpeda lor th ebrak e
pedal, e.g. by avehicl eoccupant .
Rtheelectrica lsystem in th eengin ecom-
partment, th ebattery or th efuses hav e
been tampered with.
Rth ebattery is disconnected
There is aris kof an accident.
If you wish to exit th evehicle, always tur nof f
th eHOLD function and secure th evehicl e
against rollin gaway.
!If DISTRONIC PLU Sor th eHOLD function is
activated, th evehicl ebrakes automatically in
certain situations.
To preven tdamage to th evehicle, deactivat e
DISTRONIC PLU Sand th eHOLD function in
th efollowing or other similar situations:
Rwhen towin gth evehicl e
Rin thecar wash
Activation conditions
You can activat eth eHOLD function if:
Rth evehicl eis stationary
Rth eengin eis running or if it has been auto-
matically switched of fby th eECO start/sto p
function
Rth edriver's doo ris closed or your seat belt is
fastene d
Rtheparkin gbrak eis release d
Rthetransmissio nis in position D,Ror N
RDISTRONIC PLU Sis deactivated
Activating th eHOL Dfunction
XMak esur ethat th eactivation condition sare
met .
XDepress th ebrak epedal.
XQuickl ydepress th ebrak epeda lfurther until
ë :appears in th emultifunction display.
The HOLD function is activated. You can
release th ebrak epedal.
iIf depressin gth ebrak epeda lth efirst time
doe sno tactivat eth eHOLD function ,wait
briefl yand then tr yagain .
Deactivating th eHOL Dfunction
The HOLD function is deactivated automatically
if:
Ryou accelerate and th etransmissio nis in
position Dor R.
Ryou shift th etransmissio nto position P.
162Driving systems
Driving and parking

iNote that Active Parking Assist cannot
measure the length of a parking space if it is at
right angles to the direction of travel. You will
need to judge whether your vehicle will fit into
the parking space.
When driving at speeds below 19 mph
(30 km/h), you will see the parking symbol as a
status indicator in the instrument cluster. When
a parking space has been detected, an arrow
towards the right or the left also appears. By
default, Active Parking Assist only displays park-
ing spaces on the front-passenger side. Parking spaces on the driver's side are displayed as
soon as the turn signal on the driver's side is
activated. When parking on the driver's side,
this must remain switched on until you acknowl-
edge the use of Active Parking Assist by press-
ing the abutton on the multifunction steer-
ing wheel. The system automatically determines
whether the parking space is parallel or at right
angles to the direction of travel.
A parking space is displayed while you are driv- ing past it, and until you are approximately 50 ft
(15 m) away from it.
Parking
GWARNING
If you leave the vehicle when it is only being
braked by Active Parking Assist it could roll
away if:
Rthere is a malfunction in the system or in
the voltage supply.
Rthe electrical system in the engine com-
partment, the battery or the fuses have
been tampered with.
Rthe battery is disconnected.
Rthe accelerator pedal has been depressed,
e.g. by a vehicle occupant.
There is a risk of an accident.
Before leaving the vehicle, always secure it
against rolling away.
iVehicles with automatic transmission:
When PARKTRONIC detects obstacles, Active
Parking Assist brakes automatically during
the parking process. You are responsible for
braking in good time.
XStop the vehicle when the parking space sym-
bol shows the desired parking space in the
instrument cluster.
XShift the transmission to position R.
The Start Park Assist? Yes: OK No:
% message appears in the multifunction
display.
XTo cancel the procedure: press the%
button on the multifunction steering wheel or pull away.
or
XTo park using Active Parking Assist: press
the a button on the multifunction steering
wheel.
The Park Assist Active Accelerate
and Brake Observe Surroundingsmes-
sage appears in the multifunction display.
XLet go of the multifunction steering wheel.
XBack up the vehicle, being ready to brake at all
times. When backing up, drive at a speed
below approximately 6 mph (10 km/h). Oth-
erwise Active Parking Assist will be canceled.
Active Parking Assist brakes the vehicle to a
standstill when the vehicle approaches the
rear border of the parking space.
Maneuvering may be required in tight parking
spaces.
The Park Assist Active Select D
Observe Surroundingsmessage appears in
the multifunction display.
XShift the transmission to position Dwhile the
vehicle is stationary.
Active Parking Assist immediately steers in
the other direction.
The Park Assist Active Accelerate
and Brake Observe Surroundingsmes-
sage appears in the multifunction display.
iYou will achieve the best results by waiting
for the steering procedure to complete before
pulling away.
XDrive forwards and be ready to brake at all
times.
Active Parking Assist brakes the vehicle to a
standstill.
The Park Assist Active Select R
Observe Surroundingsmessage appears in
the multifunction display.
Further transmission shifts may be necessary.
As soon as the parking procedure is complete,
the Park Assist Disabled
message appears
in the multifunction display and you will hear a
168Driving systems
Driving and parking

XUsing:or9, select the EasyEntry/Exitfunction.
If the EasyEntry/Exitfunction is activated,
the vehicle steering wheel is displayed in
orange in the multifunction display.
XPress the abutton to save the setting.
Further information on the EASY-ENTRY/EXIT
feature (
Ypage 104).
Switching the belt adjustment on/off
XPress the =or; button on the steering
wheel to select the Sett.menu.
XPress the:or9 button to select the
Conveniencesubmenu.
XPress ato confirm.
XPress the :or9 button to select the
Belt Adjustmentfunction.
When the Belt Adjustmentfunction is acti-
vated, the seat belt is displayed in orange in
the multifunction display.
XPress the abutton to save the setting.
For further information on belt adjustment, see
(
Ypage 45).
Switching the fold-in mirrors when lock-
ing feature on/off
This function is only available when the vehicle is
equipped with the electrical fold-in function.
When you switch on the Auto. Mirror Fold‐
ingfunction, the exterior mirrors are folded in
when the vehicle is locked. If you unlock the
vehicle and then open the driver's or front-
passenger door, the exterior mirrors fold out
again.
XPress the =or; button on the steering
wheel to select the Settingsmenu.
XPress the:or9 button to select the
Conveniencesubmenu.
XPress ato confirm.
XPress the :or9 button to select the
Auto. Mirror Foldingfunction.
If the Auto. Mirror Foldingfunction is
switched on, the multifunction display shows
the vehicle's exterior mirror in orange.
XPress the abutton to save the setting.
If you have switched on the Auto. MirrorFoldingfunction and you fold in the exterior
mirrors by pressing button :, the exterior mir-
rors will not fold out automatically (
Ypage 106).
You can then only fold out the exterior mirrors
using button :.
Restoring the factory settings
XPress the=or; button on the steering
wheel to select the Sett.menu.
XPress the:or9 button to select the
Factory Settingsubmenu.
XPress ato confirm.
The Reset All Settings?function
appears.
XPress the :or9 button to select Noor
Yes.
XPress ato confirm the selection.
If you have selected Yesand confirmed, the
multifunction display shows a confirmation
message.
For safety reasons, the Day Lights
function in
the Lightssubmenu is only reset if the vehicle
is stationary.
Menus and submenus201
On-board computer and displays
Z

Warning/
indicator
lampNSignal type
Possible causes/consequences and M
Solutions
?NThe red coolant warning lamp comes on while the engine is running.
The coolant level is too low.
If the coolant level is correct, the airflow to the engine radiator may be blocked or
the electric engine radiator fan may be malfunctioning.
The coolant is too hot and the engine is no longer being cooled sufficiently.
XObserve the additional display messages in the multifunction display.
XPull over and stop the vehicle safely and switch off the engine, paying attention
to road and traffic conditions.
XSecure the vehicle against rolling away (Ypage 144).
XLeave the vehicle and keep a safe distance from the vehicle until the engine has cooled down.
XCheck the coolant level and add coolant, observing the warning notes
(Ypage 259).
XIf you have to add coolant frequently, have the engine cooling system checked.
XMake sure that the air supply to the engine radiator is not blocked, e.g. by snow,
slush or ice.
XDo not start the engine again until the coolant temperature is below 248 ‡
(120 †). Otherwise, the engine could be damaged.
XDrive to the nearest qualified specialist workshop.
XAvoid subjecting the engine to heavy loads, e.g. driving in mountainous terrain,
and stop-and-go traffic.
?N The red coolant warning lamp comes on while the engine is running. A warning
tone also sounds.
The coolant temperature has exceeded 248 ‡(120 †). The airflow to the engine
radiator may be blocked or the coolant level may be too low.
GWARNING
The engine is not being cooled sufficiently and may be damaged.
Do not drive when your engine is overheated. This can cause some fluids which
may have leaked into the engine compartment to catch fire.
Steam from the overheated engine can also cause serious burns which can occur
just by opening the hood.
There is a risk of injury.
XObserve the additional display messages in the multifunction display.
XPull over and stop the vehicle safely and switch off the engine, paying attention
to road and traffic conditions.
XSecure the vehicle against rolling away (Ypage 144).
XLeave the vehicle and keep a safe distance from the vehicle until the engine has
cooled down.
XCheck the coolant level and add coolant, observing the warning notes
(Ypage 259).
XIf you have to add coolant frequently, have the engine cooling system checked.
XMake sure that the air supply to the engine radiator is not blocked, e.g. by snow,
slush or ice.
Warning and indicator lamps in the instrument cluster231
On-board computer and displays
Z

General notes
The multimedia system section in this manual
describes the basic principles for operation.
More information can be found in the Digital
Operator's Manual.
Important safety notes
GWARNING
If you operate information systems and com-
munication equipment integrated in the vehi-
cle while driving, you will be distracted from
traffic conditions. You could also lose control
of the vehicle. There is a risk of an accident.
Only operate the equipment when the traffic
situation permits. If you are not sure that this
is possible, park the vehicle paying attention
to traffic conditions and operate the equip-
ment when the vehicle is stationary.
You must observe the legal requirements for the
country in which you are currently driving when
operating the multimedia system.
The multimedia system calculates the route to
the destination without taking the following into
account, for example:
Rtraffic lights
Rstop and yield signs
Rparking or stopping restrictions
Rroad narrowing
Rother road and traffic rules and regulations
The multimedia system may give incorrect nav-
igation recommendations if the actual street/
traffic situation does not correspond with the
digital map's data.
For example:
Ra diverted route
Rthe road layout or the direction of a one-way
street has been changed
For this reason, you must always observe road
and traffic rules and regulations during your
journey. Road and traffic rules and regulations
always have priority over multimedia system
driving recommendations.
Navigation announcements are intended to
direct you while driving without diverting your
attention from the road and driving. Please always use this feature instead of con-
sulting the map display for directions. Looking
at the icons or map display can distract you from
traffic conditions and driving, and increase the
risk of an accident.
This equipment complies with FCC radiation
exposure limits set forth for uncontrolled equip-
ment and meets the FCC radio frequency (RF)
Exposure Guidelines in Supplement C to OET65.
This equipment has very low levels of RF energy
that is deemed to comply without maximum
permissive exposure evaluation (MPE). But it is
desirabl
e tha
t it should be installed and oper-
ated with at least 8inches (20 cm) and more
between the radiator and a person's body
(excluding extremities: hands, wrists, feet and
legs.)
GWARNING
Modifications to electronic components, their software as well as wiring can impair their
function and/or the function of other net-
worked components. In particular, systems
relevant to safety could also be affected. As a
result, these may no longer function as inten-
ded and/or jeopardize the operating safety of
the vehicle. There is an increased risk of an
accident and injury.
Never tamper with the wiring as well as elec-
tronic components or their software. You
should have all work to electrical and elec-
tronic equipment carried out at a qualified
specialist workshop.
If you make any changes to the vehicle elec-
tronics, the general operating permit is ren-
dered invalid.
Function restrictions
For safety reasons, some functions are restric-
ted or unavailable while the vehicle is in motion.
You will notice this, for example, because either
you will not be able to select certain menu items
or a message will appear to this effect.
234Function restrictions
Multimedia system