2017 MERCEDES-BENZ S-Class CABRIOLET Owner's Manual

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 defective.
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 140).
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 276).
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 257 ‡
(125 †). Otherwise, the engine could be damaged.
XDrive to the nearest qualified specialist workshop.
XAvoid heavy loads on the engine as you do so, 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 255 ‡(124 †). 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 140).
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 276).
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 cluster239
On-board computer and displays
Z

Warning/
indicator
lampNSignal type
Possible causes/consequences and M
Solutions
XAt coolant temperatures below 257‡(125 †), you can continue driving to the
nearest qualified specialist workshop.
XAvoid heavy loads on the engine as you do so, e.g. driving in mountainous terrain
and stop-and-go traffic.
Driving systems
Warning/
indicator
lampNSignal type
Possible causes/consequences and M
Solutions
·NThe red distance warning lamp lights up while the vehicle is in motion. A warning
tone also sounds.
You are approaching a vehicle, a pedestrian or a stationary obstacle in your line of travel at too high a speed.
XBe prepared to brake immediately.
XPay careful attention to the traffic situation. You may have to brake or take
evasive action.
Further information on PRE ‑SAFE
®Brake (Ypage 68).
For further information about the distance warning function of COLLISION PRE-
VENTION ASSIST PLUS, see (
Ypage 64).
240Warning and indicator lamps in the instrument cluster
On-board computer and displays

Tires
Warning/
indicator
lampNSignal type
Possible causes/consequences and M
Solutions
hNThe yellow combination low tire pressure telltale/TPMS malfunction telltale for
the TPMS (pressure loss or malfunction) is lit.
The tire pressure monitor has detected a loss of pressure in at least one of the tires.
GWARNING
Tire pressures that are too low pose the following hazards:
Rthey may burst, especially as the load and vehicle speed increase.
Rthey may wear excessively and/or unevenly, which may greatly impair tire trac-
tion.
Rthe driving characteristics, as well as steering and braking, may be greatly
impaired.
There is a risk of an accident.
XStop the vehicle without making any sudden steering or braking maneuvers. Pay
attention to the traffic conditions as you do so.
XSecure the vehicle against rolling away (Ypage 140).
XObserve the additional display messages in the multifunction display.
XCheck the tires and, if necessary, follow the instructions for a flat tire
(Ypage 288).
XCheck the tire pressure (Ypage 308).
XIf necessary, correct the tire pressure.
hN The yellow combination low tire pressure telltale/TPMS malfunction telltale for
the TPMS (pressure loss or malfunction) flashes for approximately one minute and
then remains lit.
The tire pressure monitor is faulty.
GWARNING
The system is possibly unable to recognize or register low tire pressure.
There is a risk of an accident.
XObserve the additional display messages in the multifunction display.
XVisit a qualified specialist workshop immediately.
Warning and indicator lamps in the instrument cluster241
On-board computer and displays
Z

Vehicle
Warning/
indicator
lampNSignal type
Possible causes/consequences and M
Solutions
ÐNThe red power steering warning lamp is lit while the engine is running.
The power steering is malfunctioning.
A warning tone also sounds.
GWARNING
You will need to use more force to steer.
There is a risk of an accident.
XCheck whether you are able to apply the extra force required.
If you are able to steer safely:
XDrive on carefully.
XVisit a qualified specialist workshop immediately.
If you are unable to steer safely:
XDo not drive on.
XConsult a qualified specialist workshop.
242Warning and indicator lamps in the instrument cluster
On-board computer and displays

General notes
The multimedia system section in this Opera-
tor's Manual describes the basic principles for
operation. More information can be found in theDigital 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). How-
ever, it is recommended
to insta
ll it at a distance
of at least 8 inches (approx. 20 cm) between the
radiation source and a person's body (not
including limbs such as 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.
Function restrictions243
Multimedia system
Z

Operating system
Overview
General notes
Wearing polarized sunglasses may impair your
ability to read the display.
The display has an automatic temperature-con-
trolled switch-off feature. The brightness is
automatically reduced if the temperature is too
high. The display may temporarily switch off
completely.
Cleaning instructions
!Do not touch the display. The display has a
very sensitive high-gloss surface; there is a
risk of scratching. If you have to clean the
screen, however, use a mild cleaning agent
and a soft, lint-free cloth.
The display must be switched off and have
cooled down before you start cleaning. Do not
apply pressure to the display surface when
cleaning it, as this could cause irreversible dam-
age to the display.
Switching the multimedia system
on/off
XPress the Übutton on the center console
to the right of the controller.
When you switch the multimedia system on, a
warning message will appear. The multimedia
system calls up the previously selected menu.
If you switch the multimedia system off, play- back of the current media source will also be
switched off.
Adjusting the volume
XTurn the thumbwheel to the right of the con-
troller.
or
XPress the WorX button on the multi-
function steering wheel.
The volume of the media source currently
selected changes.
The volume is adjusted:
Rfor the currently selected media source
Rduring traffic or navigation announcements
Rin hands-free mode during a phone call
Switching the sound on or off
XPress the thumbwheel beside the controller.
or
XPress the 8button on the multifunction
steering wheel.
If the audio output is switched off, the status
line will show the 8symbol. If you switch
the media source or change the volume, the
sound is automatically switched on.
iNavigation announcements will be heard
even if the sound is muted.
Functions
The multimedia system has the following func-
tions:
RRadio mode
RMedia mode with media search
RSound systems
RNavigation system
RCommunication functions
RSIRIUS Weather
RVehicle functions with system settings
RFavorites functions
Controller
The controller in the center console lets you:
Rselect menu items on the display
Renter characters
Rselect a destination on the map
Rsave entries
The controller can be:
Rturned 3
Rslid left or right 1
Rslid forwards or back 4
Rslid diagonally2
Rpressed briefly or pressed and held 7
Back button
You can use the%button to exit a menu or to
call up the basic display of the current operating
mode.
244Operating system
Multimedia system

XTo exit the menu:briefly press the%
button.
The multimedia system changes to the next
higher menu level in the current operating
mode.
XTo call up the basic display: press the%
button for longer than two seconds.
The multimedia system changes to the basic
display of the current operating mode.
The telephone keypad or touchpad
The multimedia system is equipped with either a
telephone keypad or a touchpad.
The telephone keypad is touch-sensitive. As
soon as one or several of the keys are gently
touched, the telephone keypad is shown in the
multimedia system's display. The key being
touched is highlighted.
As an alternative to the controller, the touchpad
enables menu items to be selected and charac-
ter entry including handwriting recognition, for
example.
Touchpad
Switching the touchpad on/off
Multimedia system:
XSelect VehicleQSystem Set‐tingsQTouchpadQActivate Touch‐pad.
The touchpad is switched on Oor off ª.
Operating the touchpad
The touchpad is available in two versions.
Variant 1
:
Touch-sensitive surface
;Favorites button
=Quick access for audio
?Back button
Variant 2
:
Touch-sensitive surface
;Favorites button
=Calls up quick access for audio and tele-
phone
?Back button
Navigating in menus and lists can be done via
touch-sensitive surface :byswiping with
your finger.
XTo select the menu item: swipe up, down, to
the left or right.
XPress the touchpad.
XTo move the digital map: swipe in all direc-
tions.
Swiping with two fingers , e.g. using this func-
tion:
XTo show or hide the audio menu: swipe up
or down with two fingers.
XTo increase or reduce the vehicle and
sound settings: turn two fingers to the right
or left.
XTo zoom in and out of the map: move two
fingers together or apart.
Character entry with handwriting rec-
ognition
Entering characters
XUse one finger to write characters on the sur-
face.
The character is entered in the input line. If
the character that you have entered can be
Operating system245
Multimedia system
Z

interpreted in different ways, these character
suggestions are displayed.
XIf character suggestions are shown, turn and
press the controller.
XResume the character entry on the touchpad.
Handwriting recognition
:Active input line
;To insert a space
=Character entered on the touchpad
?To delete characters
XTo display the menu:press the touchpad.
:To exit the menu
;To return to handwriting recognition
=To use the phone book or text templates
?To select the input line or changes the posi-
tion of the cursor
ATo switch the language
BTo finish character entry
XTo select the input line: selectp.
XSwipe up or down.
XTo move the cursor within the input line:
select p.
XSwipe to the left or right.
XTo delete characters: swipe to the left if an
input line is selected.
XTo confirm the entry: press the touchpad.
Switching the text reader function of the
handwriting recognition on/off
Multimedia system:
XSelectVehicleQSystem Set‐tingsQTouchpadQRead Out Hand‐writing Recognition.
The read-aloud function is switched on Oor
off ª.
Quick access for audio
Changing the station/music track
Depending on the audio source that is currently
activated, you can use this function to select the
next station or music track.
XSwipe upwards on the touchpad with two fin-
gers.
The current audio source is displayed.
XTo select the previous or next station/
music track: glide to the right or left.
The selected station/music track is played.
Quick access for telephone
Sending DTMF tones
Requirement: the touchpad is equipped with
version 2.
The function is not supported by all mobile
phones (see the manufacturer's operating
instructions).
XSwipe upwards on the touchpad with two fin-
gers during a phone call.
Quick access is displayed.
XTo select characters: glide your finger to the
left or right and press.
Every character selected will be transmitted
immediately.
246Operating system
Multimedia system