2017 MERCEDES-BENZ S-Class CABRIOLET check engine

XCompletely insert thefiller neck of the fuel
pump nozz leinto the tank, hook in place and
refuel.
XOnly fill the tank unt ilthe pump nozz le
swit ches off.
Do not add any more fuel after the pump stops filli ng for the first time. Otherwise, fuel may
leak out.
Closing the fuel filler flap
XReplac e the cap on the filler neck and turn
clock wiseuntil it engages audibly.
XClose the fuel filler flap. If
you drive at speeds above 2 km/hwith the fuel
fille r flap open, the Fuel Filler Flap Open
message is shown on the multifunction display.
Close the fuel filler flap before locking the vehi-
cle.
If you are driving with the fuel filler cap open, the
8 reserve fuel warning lamp flashes. A mes-
sage appears in the multifunction display
(
Ypage 219).
In addition, the ;Check Engine warning
lamp may light up (
Ypage 238).
For further information on warning and indicator
lamps inthe instrument cluster, see
(
Ypage 238).
Problems with fuel and the fuel tank
ProblemPossible causes/consequences and MSolutions
Fuelisleaking from the
veh icle.GWAR NING
The fuel line or the fuel tank isfaulty.
Risk of explos ion or fire.
XApply the electr icparking brake.
XSwit ch off the engine.
XMake sure that the ignition is switched off (Ypage 124).
or
XWhen using the SmartKey, turn the SmartKey to position 0in the
ignition lock and remove it (Ypage 124).
XDo not restart the engine under any circumstances.
XConsult a qualified specialist workshop.
The fuel filler flap cannot
be opened.The fuel filler flap isnot unlocked.
XUnlock the veh icle(Ypage 72).
The SmartKey battery is discharged or nearly discharged.
XUnlock the veh icleusing the mechanical key (Ypage 74).
The fuel filler flap isunlocked, but the opening mechanism isjammed.
XConsult a qualified specialist workshop.
Parking
Important safety notes
GWARNING
Flammable material such as leaves, grass or
twigs may ignite ifthey come into contact with
hot parts of the exhaust system or exhaust
gas flow. There isa risk of fire.
Park the vehicle so that no flammable mate-
rials come into contact with parts of the veh i-
cle which are hot. Take particular care not to
park on dry grassland or harvested grain
fields.
140Parking
Driving and parking

Have the brake system checked immediately.
Consult a qualified specialist workshop to
arrange this.
!Vehicles with 4MATIC: function or per-
formance tests may only be carried out on a 2-
axle dynamometer. If you wish to operate the
vehicle on such a dynamometer, please con-
sult a qualified specialist workshop in
advance. You could otherwise damage the
drive train or the brake system.
!Vehicles with 4MATIC: the ESP®system
operates automatically. The engine and the
ignition must therefore be switched off (the
SmartKey must be in position 0or 1in the
ignition lock or the Start/Stop button must be
in position 0or 1) if the electric parking brake
is tested on a brake dynamometer.
Braking triggered automatically by ESP
®may
cause severe damage to the brake system.
!Vehicles without 4MATIC: the ESP®sys-
tem operates automatically. The engine and
the ignition must therefore be switched off
(the SmartKey must be in position 0or 1in the
ignition lock or the Start/Stop button must be
in position 0or 1) if:
Rthe electric parking brake is tested using a
brake dynamometer.
Rthe vehicle is towed with one axle raised.
Braking triggered automatically by ESP®may
cause severe damage to the brake system.
All checks and maintenance work on the brake
system must be carried out at a qualified spe-
cialist workshop.
Have brake pads installed and brake flui
d
replaced at a qualified specialist workshop.
If the brake system has only been subject to
moderate loads, you should test the functional-
ity of your brakes at regular intervals.
Information on BAS (Brake Assist) (
Ypage 62)
and BAS PLUS (Brake Assist PLUS) (Ypage 62).
For safety reasons, Mercedes-Benz recom-
mends only installing the following brake disks
and brake pads/linings:
Rbrake disks that have been approved by
Mercedes-Benz
Rbrake pads/linings that have been approved
by Mercedes-Benz or that are of an equivalent
standard of quality
Other brake disks or brake pads/linings can
compromise the safety of your vehicle. Always replace all brake disks and brake pads/
linings on an axle at the same time. Always
install new brake pads/linings when replacing
brake disks.
The vehicle is equipped with lightweight brake
disks to which the wheel assembly with rim and
threaded connection is matched.
The use of brake disks other than those
approved by Mercedes-Benz can change the
track width and is subject to approval, if appli-
cable.
Shock-type loads when handling the brake
discs, such as when changing wheels, can lead
to a reduction in comfort when driving with light-
weight brake discs. Avoid shock-type loads on
the lightweight brake disks, particularly on the
brake plate.
Mercedes-Benz recommends that you only use
brake fluid that has been specially approve
d for
y

our vehicle by Mercedes-Benz, or which corre-
sponds to an equivalent quality standard. Brake
fluid which has not been approved for
Mercedes-Benz vehicles or which is not of an
equivalent quality could affect your vehicle's
operating safety.
AMG high-performance and ceramic
brakes
The high-performance brake system is only
available on Mercedes-AMG vehicles.
The AMG brake systems are designed for heavy
loads. This may lead to noise when braking. This
will depend on:
RSpeed
RBraking force
REnvironmental conditions, such as tempera-
ture and humidity
The wear of individual components of the brake
system, such as the brake pads/linings or brake
discs, depends on the individual driving style
and operating conditions.
For this reason, it is impossible to state a mile-
age that will be valid under all circumstances. An aggressive driving style will lead to high wear.
You can obtain more information on this from a
qualified specialist workshop.
New and replaced brake pads and discs only
reach their optimum braking effect after several
hundred kilometers of driving. Compensate for
this by applying greater force to the brake pedal.
Keep this in mind, and adapt your driving and
braking accordingly during this break-in period.
Driving tips147
Driving and parking
Z

Excessive heavy braking results in correspond-
ingly high brake wear. Observe the brake wear
warning lamp in the instrument cluster and note
any brake status messages in the multifunction
display. Especially for high performance driving,it is important to maintain and have the brake
system checked regularly.
Driving on wet roads
Hydroplaning
If water has accumulated to a certain depth on
the road surface, there is a danger of hydro-
planing occurring, even if:
Ryou drive at low speeds
Rthe tires have adequate tread depth
For this reason, in the event of heavy rain or in
conditions in which hydroplaning may occur,
you must drive in the following manner:
Rlower your speed
Ravoid ruts
Ravoid sudden steering movements
Rbrake carefully
Driving on flooded roads
!Do not drive through flooded areas. Check
the depth of any water before driving through
it. Drive slowly through standing water. Oth-
erwise, water may enter the vehicle interior or
the engine compartment. This can damage
the electronic components in the engine or
the automatic transmission. Water can also
be drawn in by the engine's air suction nozzles
and this can cause engine damage.
Winter driving
GWARNING
If you shift down on a slippery road surface in an attempt to increase the engine's braking
effect, the drive wheels could lose their grip.
There is an increased danger of skidding and
accidents.
Do not shift down for additional engine brak-
ing on a slippery road surface.
GDANGER
If the exhaust pipe is blocked or adequate
ventilation is not possible, poisonous gases
such as carbon monoxide (CO) may enter the vehicle. This is the case, e.g. if the vehicle
becomes trapped in snow. There is a risk of
fatal injury.
If you leave the engine or the auxiliary heating
running, make sure the exhaust pipe and area
around the vehicle are clear of snow. To
ensure an adequate supply of fresh air, open a
window on the side of the vehicle that is not
facing into the wind.
Have your vehicle winter-proofed at a qualified
specialist workshop at the onset of winter.
Drive particularly carefully on slippery road sur-
faces. Avoid sudden acceleration, steering and
braking maneuvers. Do not use the cruise con-
trol or DISTRONIC PLUS.
If the vehicle threatens to skid or cannot be
stopped when moving at low speed:
XShift the transmission to position N.
The outside temperature indicator is not
designed to serve as an ice-warning device and
is therefore unsuitable for that purpose.
Changes in the outside temperature are dis-
played after a short delay.
Indicated temperatures just above the freezing
po int d
o not guarantee that the road surface is
free of ice. The road may still be icy, especially in
wooded areas or on bridges.
You should pay special attention to road condi-
tions when temperatures are around freezing
point.
For more information on driving with snow
chains, see (
Ypage 304).
For more information on driving with summer
tires, see (
Ypage 304).
Observe the notes in the "Winter operation" sec-
tion (
Ypage 304).
Driving systems
Mercedes-Benz Intelligent Drive
Mercedes-Benz Intelligent Drive stands for inno-
vative driver assistance and safety systems
which enhance comfort and support the driver in
148Driving system s
Driving an d parking

Rif the camera lenses are dirty or covered.
Observe the notes on cleaning
(
Ypage 284)
Rif the vehicle components in which the cam-
eras are installed are damaged. In this event,
have the camera position and setting checked
at a qualified specialist workshop
Do not use the 360° camera in this case. You
can otherwise injure others or cause damage to
objects or the vehicle.
The guide lines on the multimedia system show
the distances to your vehicle. The distances only
apply to road level.
The camera in the rear area is protected from
raindrops and dust by means of a flap. This flap
opens when the 360° camera is activated.
The flap closes again when:
Ryou have finished the maneuvering process
Ryou switch off the engine
Ryou open the trunk
Observe the notes on cleaning (
Ypage 284).
For technical reasons, the flap may remain open
briefly after the 360° camera has been deacti-
vated.
The field of vision and other functions of the
camera system may be restricted due to addi-
tional attachments (e.g. license plate holder,
rear bicycle carrier).
On vehicles with height-adjustable chassis,
depending on technical conditions, leaving the
standard height can result in:
Rinaccuracies in the guide lines
Rinaccuracies in the display of generated
images (top view)
Activation conditions
The image from the 360° camera appears if:
Rthe multimedia system is switched on
Rthe 360° Camerafunction is switched on
If the 360° camera is activated at speeds above
approximately 19 mph (30 km/h), a warning
message appears.
The warning message disappears if:
Rthe vehicle's speed falls below approximately
19 mph (30 km/h). The 360° camera is then
activated.
Rthe message is confirmed with the %but-
ton.
Switching the 360° camera on/off with
the button
XTo switch on: press button:.
Depending on whether position Dor Ris
engaged, the following is shown:
Rfull screen display with the image from the
front camera
Rfull screen display with the image from the
rear view camera
XTo switch off: press button:again.
You cannot switch off the 360° camera with the
button if reverse gear is engaged.
Switching on the 360° camera and mul-
timedia system
XPress the Øbutton in the center console.
The vehicle menu is displayed.
XTo select the 360° camera: turn and press the
controller.
Depending on whether position Dor Ris
engaged, the following is shown:
Ra split screen with top view and the image
from the front camera or
Ra split screen with top view and the image
from the rear view camera
Activating the 360° camera using
reverse gear
The 360° camera images can be automatically
displayed by engaging reverse gear.
XMake sure that the Activation by R gearfunction is selected in the multimedia system
(see the Digital Operator's Manual).
XTo show the 360° camera image: engage
reverse gear.
The multimedia system shows the area
behind the vehicle in split-screen mode. You
Driving systems173
Driving and parking
Z

The system does not detect:
Rsmaller animals, e.g. dogs and cats
Ranimals whose silhouette is not clearly rec-
ognizable
When detected, animals are marked with small
color frame corners. In contrast to pedestrian
recognition, there is no separate readiness sym-
bol in the multifunction display.
Activating/deactivating Night View
Assist Plus
Activation conditions
You can only activate Night View Assist Plus if all
of the following conditions are met:
Rthe ignition is switched on (Ypage 124) or the
engine has been started.
Rthe light switch is in the ÃorL posi-
tion.
Rreverse gear has not been engaged.
Activating/deactivating
XPress button :.
If Night View Assist Plus is activated, the
Night View Assist Plus display is shown in the multifunction display.
The infrared headlamps only switch on in the
dark from speeds of approximately 6 mph
(10 km/h) . This means that you do not have the
full visual range while the vehicle is stationary
and cannot check whether Night View Assist
Plus is working. The infrared headlamps are
deactivated at speeds below 3 mph (5 km/h).
The Night View image continues to be displayed
until you deactivate it by pressing button :.
Automatic activation
You can select theNightViewAssistAuto‐matic Activationoption via the Night View
Assist menu. The pedestrian and animal search function remains active even when the Night
View image is not displayed. In the dark, in unlit
surroundings and at speeds of more than
60 km/h, the Night View image is automatically
displayed in the multifunction display as soon as
pedestrians or animals are detected.
XIn the assistance menu, select automatic acti-
vation of Night View Assist Plus
(
Ypage 199).
Spotlight function
General notes
Under certain conditions, the spotlight function
uses the headlamps to flash at detected pedes- trians.
The spotlight function is only active if:
Rpedestrian recognition is active
Rthe road surface is not lit
Rthe driving speed is at least 40 mph
(60 km/h)
Rthe "Adaptive Highbeam Assist PLUS" func-
tion is activated (Ypage 110).
The spotlight function is not active or is active
only to a limited extent if:
Ryou are driving in city traffic
Rthere are pedestrians located in the area of an
oncoming vehicle or a vehicle in front
Activating the spotlight function
The pedestrian detection with spotlight function is running the background. If the prerequisites
are met, the spotlight function uses the head-
lamps to flash four short pulses at a pedestrian
detected on or near to the road.
XIn the light menu, select the spotlight function
of Night View Assist Plus (Ypage 202).
The spotlight function does not flash at animals.
180Driving systems
Driving and parking

Important safety notes
GWARNING
If you operate information systems and com-
munication equipmen tintegrate din th evehi-
cle while driving ,you will be distracte dfrom
traffic conditions. You could also lose control
of th evehicle. Ther eis aris kof an accident.
Only operate th eequipmen twhen th etraffic
situation permits. If you are no tsur ethat this
is possible ,park th evehicl epayin gattention
to traffic condition sand operate th eequip-
men twhen th evehicl eis stationary.
You must observ eth elegal requirements for th e
country in whic hyou are currentl ydriving when
operating th eon-board computer.
GWARNIN G
If th einstrumen tcluste rhas faile dor mal-
functioned, you may no trecognize function
restriction sin systems relevan tto safety. The
operating safet yof your vehicl emay be
impaired .Ther eis aris kof an accident.
Drive on carefully. Hav eth evehicl echecke d
at aqualified specialist workshop immedi-
ately.
If th eoperating safet yof your vehicl eis
impaired ,pull ove ras soo nas it is saf eto do so.
Contac t aqualified specialist workshop.
The on-board computer only shows message sor
warning sfrom certain systems in th emultifunc-
tion display. You should therefor emak esur e
your vehicl eis operating safely at all times .
Fo ran overview, see th einstrumen tpanel illus-
tration (
Ypage 34).
Displays and operation
Instrument cluster lighting
The ligh tsensor in th einstrumen tcluste rauto -
matically control sth ebrightness of th emulti-
function display. In daylight, th edisplays in th e
instrumen tcluste rare illuminated. Adimming
function is no tpossible in daylight.
The lighting in th einstrumen tcluster, in th edis-
plays and th econtrol sin th evehicl einterior can
be adjusted usin gth ebrightness control knob. The brightness control is locate
dbetween th e
instrumen tcluste rand th emultimedia system
display (
Ypage 35).
XTurn thebrightness control knob clockwise or
counter-clockwise.
If you tur nth eligh tswitch (
Ypage 107) to th e
T, ÃorL position ,th ebrightness
will depend upon th ebrightness of th eambi -
en tlight.
Speedometer segments
The segments in th espeedometer indicat e
whic hspee drange is available.
RCruis econtrol activated (Ypage 149):
The segments ligh tup from th estore dspee d
to th een dof th escale.
RDISTRONI CPLU Sactivated (Ypage 150):
On eor two segments in th eset spee drange
ligh tup.
RDISTRONI CPLU Sdetects avehicl ein fron t
moving mor eslowly than th estore dspeed:
The segments between th espee dof th evehi-
cle in fron tand th estore dspee dligh tup.
Tachometer
!
Do no tdriv ein th eoverrevving range, as this
could damag eth eengine.
The red ban din th etachometer indicates th e
engine's overrevving range.
The fuel suppl yis interrupted to protect th e
engin ewhen th ered ban dis reached.
Outside temperature display
You should pay special attention to road condi-
tion swhen temperatures are aroun dfreezing
point.
Bea rin min dthat th eoutside temperature dis-
play indicates th etemperature measured and
does no trecord th eroad temperature.
The outside temperature display is in th emulti-
function display (
Ypage 189).
Ther eis ashort delay before achang ein outside
temperature is shown in th emultifunction dis-
play.
Displays and operation187
On-board computer and displays
Z

Assistance graphic menu
XPress theò buttonon th esteering whee l
to open th emen ulist .
XPress :or9 on thesteering whee lto
select th eAssistanc eGraphi cmenu.
XConfirmby pressing aon thesteering
wheel.
The assistanc egraphic displays th estatus of
and information from th efollowin gdrivin g
systems or drivin gsafet ysystems :
RDistancedisplay of DISTRONI CPLU S
(Ypage 150)
RSpotligh tfunction of Night View Assis tPlus
(Ypage 202)
RDistanc ewarning and th eautonomous
braking function COLLISION PREVENTION
ASSIST PLU S (
Ypage 64)
RPRE-SAF E®Brake(Ypage 68 )
RActive Blind Spot Assis t (Ypage 181)
RATTENTION ASSIST(Ypage 176)
RActive LaneKeepin gAssis t (Ypage 184)
XPress :to display th eATTENTION ASSIST
assessment.
Service menu
Introd uction
Dependin gon th eequipmen tinstalled in th e
vehicle, you hav eth efollowin goption sin th e
Servic e
menu:
RCallingup display message sin message
memory (Ypage 204)
RChecking th etire pressur eelectronically
(Ypage 308)
RCallin gup th eservic edue dat e (Ypage 278).
RChecking th eengin eoil level usin gth eon -
boar dcomputer (Ypage 274) (Mercedes-
AM G S 65 only)
Settings menu
Introd uction
Dependin gon th eequipmen tinstalled in th e
vehicle, you hav eth efollowin goption sin th e
Settings
menu:
RChangin gassistanc esetting s (Ypage 198)
RChangin ghead-up display setting s
(Ypage 201)
RChangin gth eligh tsetting s (Ypage 202)
RChangin gth einstrumen tcluste rsetting s
(Ypage 202)
RRestoring th efactory setting s (Ypage 203)
Assistance submenu
Deactivating/activating ESP®
Observ eth e"Importan tsafet ynotes" section in
th edescription of ES P®(Ypage 66).
GWARNING
If you deactivat eES P
®,ES P®no longer sta-
bilizes th evehicle. There is an increased ris k
of skiddin gand an accident.
Only deactivat eES P
®in th esituation sdescri-
bed in th efollowing.
It may be best to deactivat eES P
®in th efollow-
ing situations:
Rwhen usin gsnow chain s
Rin deep snow
Ron sandor gravel
Fo rfurther information about ES P®,see
(Ypage 66).
XStart th eengine.
XPress th eò buttonon th esteering whee l
to open th emen ulist .
XPress :or9 on thesteering whee lto
select th eSettingsmenu.
XConfir mby pressing aon thesteering
wheel.
198Menus and submenus
On-board computer and displays

Display messagesPossible causes/consequences andMSolutions
The yellow!warning lamp lights up and th ered F (USAonly)
or ! (Canada only) indicator lamp flashes .
It is no tpossibl eto apply th eelectric parking brak emanually.
XShift th etransmission to position P.
XVisitaqualified specialist workshop .
$(USA
only)
J( Canada
only)
Check Brake Fluid
Level
There is no tenough brak efluid in th ebrak efluid reservoir .
In addition ,th e$ (USAonly) or J(Canada only) warning lamp
lights up in th einstrumen tcluste rand awarning tone sounds.
GWARNIN G
The braking effec tmay be impaired.
There is aris kof an accident.
XPull ove rand stop th evehicl esafely as soo nas possible, payin g
attention to roa dand traffic conditions. Do no tcontinu edrivin g
under any circumstances.
XSecur eth evehicl eagainst rollin gaway (Ypage 140).
XConsult aqualified specialist workshop .
XDo notadd brak efluid .This does no tcorrec tth emalfunction .
#
CheckBrakePadWear
The brak epads/linings hav ereached their wear limit.
US Aonly: th ered $ brakesystem warning lamp also lights up while
th eengin eis running.
XVisit aqualified specialist workshop .
G
Inoperative
Oneor mor emain features of th embrace system are malfunctioning .
XVisitaqualified specialist workshop .
Collision Preven‐tionAssist Plu sCurrently Unavaila‐ble See Operator' sManual
COLLISION PREVENTION ASSIST PLU Sis temporarily no toperational.
Possibl ecauses are:
Rth eradar sensor system is temporarily inoperative, e.g. due to elec -
tromagneti cradiation emitted by nearby TV or radi ostation sor
other source sof electromagneti cradiation
Rth esystem is outside th eoperating temperature range
Rth eon-boar dvoltag eis to olow.
Whe nth ecauses state dabov eno longer apply, th edisplay message
disappears.
COLLISION PREVENTION ASSIST PLU Sis operational again .
If th edisplay message does no tdisappear :
XPull overand stop th evehicl esafely as soo nas possible, payin g
attention to roa dand traffic conditions.
XSecur eth evehicl eagainst rollin gaway (Ypage 140).
XRestart th eengine.
210Display messages
On-board computer and displays