2018 MERCEDES-BENZ C-CLASS CABRIOLET warning

Tires
Warning/
indicator
lampNSignal type
Possible causes/consequences and M
Solutions
hNThe yellow tire pressure monitor warning lamp (pressure loss/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 143).
XObserve the additional display messages in the multifunction display.
XCheck the tires and, if necessary, follow the instructions for a flat tire
(Ypage 296).
XCheck the tire pressure (Ypage 321).
XIf necessary, correct the tire pressure.
hN The yellow tire pressure monitor warning lamp (pressure loss/malfunction)
flashes for approximately one minute and then remains lit.
The tire pressure monitor is malfunctioning.
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 cluster251
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.
252Warning 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 when driving, you may be distracted from
the traffic situation. You could also lose con-
trol of the vehicle. There is a risk of an acci-
dent.
Only operate this 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.
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 restrictions253
Multimedia system
Z

Calling up the climate control bar
Multimedia system:
XSelectVehicle.
The vehicle menu is displayed.
XSlide 6the controller repeatedly until the
climate control bar is activated.
Calling up the climate control menu
Multimedia system:
XSelect Vehicle.
The vehicle menu is displayed.
XSlide 6the controller repeatedly until the
climate control bar is activated.
XTo select from climate control bar ;: turn
and press the controller.
The menu for selecting the climate control
function is activated.
XTo select the climate control function: turn
and press the controller.
The selected climate control function
appears.
Settings in the climate menu
Adjusting the climate mode settings
The climate mode determines the type of air-
flow. The setting is active when the air-condi-
tioning system is set to Ã(
Ypage 117).
XCall up the climate control menu
(Ypage 258).
XTo select Climate Mode: turn and press the
controller.
XTo change the setting: turn the controller.
XTo exit the menu: press the%button.
The climate mode bar displays the current air-
flow setting: DIFFUSE
,MEDIUMor FOCUS.
Switching the ionization on/off
The ionization has a cleansing effect on the air in
the vehicle interior. Further information
(
Ypage 120).
XCall up the climate control menu
(Ypage 258).
XTo select Ionization: turn and press the
controller.
The setting element is active.
XTo switch the ionization on or off: turn the
controller.
XTo exit the menu: press the%button.
Settings in the bottom bar of the cli-
mate control menu
Switching cooling with air dehumidifica-
tion on/off
XCall up the climate control menu
(Ypage 258).
XSlide6the controller repeatedly until the
bottom bar is activated.
XTo select OA/C: turn and press the control-
ler.
XSwitch cooling with air dehumidification on
O or off ª.
iThe current status of the cooling function is
displayed in the climate control bar: A/C ON
– activated, A/C OFF – deactivated.
iDeactivating the cooling with air dehumidi-
fication function reduces fuel consumption.
Synchronizing the climate control set-
tings
Use OSync(synchronization) to select the cli-
mate control setting for all zones together Oor
separately ª.
XCall up the climate control menu
(Ypage 258).
XSlide6the controller repeatedly until the
bottom bar is activated.
XTo select OSync: turn and press the con-
troller.
XSwitch the synchronization function on Oor
off ª.
For further information on synchronizing climate
control settings, see (
Ypage 118).
Navigation mode
Important safety notes
GWARNING
If you operate information systems and com-
munication equipment integrated in the vehi-
cle when driving, you may be distracted from
the traffic situation. You could also lose con-
258Operating system
Multimedia system

Multimedia system:
XSelectPhoneQConnectDeviceQSearch for PhonesQStartSearch.
The available mobile phones are displayed.
Symbols in the device list
Sym-
bolExplanation
ÏNew mobile phone found, not yet
authorized.
ÑMobile phone is authorized, but is
not connected.
#Mobile phone is authorized and
connected.
Connecting a mobile phone
Authorization using Secure Simple Pairing:
XSelect mobile phone.
A code is displayed in the multimedia system
and on the mobile phone.
XIf codes match: selectYeson the multimedia
system.
XConfirm code on the mobile phone. Depend-
ing on the mobile phone used, confirm the
connection to the multimedia system and for
the PBAP and MAP Bluetooth
®profiles. The
prompt to confirm may take up to two
minutes to be displayed (see the manufactur-
er's operating instructions).
XIf the codes are different: selectNoon the
multimedia system.
The process is canceled.
Repeat authorization.
Authorization by entering a passkey (passcode):
XSelect Bluetooth®name of the mobile phone.
The input menu for the passkey is displayed.
XChoose a one to sixteen-digit number combi- nation as a passkey.
XEnter the passkey on the multimedia system.
XPress ¬to confirm.
XEnter and confirm the passkey on the mobile
phone. Depending on the mobile phone used,
confirm the connection to the multimedia sys-
tem and for the PBAP and MAP Bluetooth
®
profiles. The prompt to confirm may take up
to two minutes to be displayed (see the man-
ufacturer's operating instructions).
Switching between mobile phones
If you have authorized more than one mobile
phone, you can switch between the individual
phones.
Multimedia system:
XSelect PhoneQConnect Device.
XSelect a mobile phone from the device list.
Media mode
General notes
If you wish to play external media sources, the
appropriate media mode must already be turned
on. Further information on media mode (see the
Digital Operator's Manual).
The following external media sources can be
used:
RApple®devices (e.g. iPhone®)
RUSB devices (e.g. USB stick, MP3 player)
RCD
RDVD (COMAND)
RSD cards
Rvia devices connected by Bluetooth®
iInformation on the single DVD drive (see the
Digital Operator's Manual).
Activating media mode
Multimedia system:
XSelect MediaQDevices.
The available media sources will be shown.
XSelect the media source.
Playable files are played.
Inserting and removing an SD card
Important safety notes
GWARNING
SD cards are small parts. They can be swal-
lowed and cause choking. This poses an
increased risk of injury or even fatal injury.
Keep the SD card out of the reach of children. If a SD card is swallowed, seek medical atten-
tion immediately.
Operating system261
Multimedia system
Z

Stowage areas
Loading guidelines
GWARNING
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. Exhaust
gases can enter the vehicle interior if the
trunk lid is open when the engine is running,
especially if the vehicle is in motion. There is a
risk of poisoning.
Always switch off the engine before opening
the trunk lid. Never drive with the trunk lid
open.
GWARNING
If objects, luggage or loads are not secured or
not secured sufficiently, they could slip, tip
over or be flung around and thereby hit vehicle
occupants. There is a risk of injury, particu-
larly in the event of sudden braking or a sud-
den change in direction.
Always store objects so that they cannot be
flung around. Secure objects, luggage or
loads against slipping or tipping before the
journey.
GWARNING
The exhaust tail pipe and tail pipe trim can
become very hot. If you come into contact
with these parts of the vehicle, you could burn
yourself. There is a risk of injury.
Always be particularly careful around the
exhaust tail pipe and the tail pipe trim. Allow
these components to cool down before touch-
ing them.
The handling characteristics of a laden vehicle
are dependent on the distribution of the load
within the vehicle. For this reason, you should
observe the following notes when transporting a
load:
RNever exceed the maximum permissible
gross vehicle mass or the gross axle weight
rating for the vehicle (including occupants).
The values are specified on the vehicle iden- tification plate on the B-pillar of the driver's
door.
RThe trunk is the preferred place to carry
objects.
RPosition heavy loads as far forwards as pos-
sible and as low down in the trunk as possible.
RThe load must not protrude above the upper
edge of the seat backrests.
RAlways place the load behind unoccupied
seats if possible.
RSecure the load with sufficiently strong and
wear-resistant tie-downs. Pad sharp edges for
protection.
Stowage spaces
Important safety notes
GWARNING
If objects in the passenger compartment are
stowed incorrectly, they can slide or be
thrown around and hit vehicle occupants. In
addition, cupholders, open stowage spaces
and mobile phone brackets cannot always
retain all objects they contain. There is a risk of injury, particularly in the event of sudden
braking or a sudden change in direction.
RAlways stow objects so that they cannot be
thrown around in such situations.
RAlways make sure that objects do not pro-
trude from stowage spaces, parcel nets or
stowage nets.
RClose the lockable stowage spaces before
starting a journey.
RAlways stow and secure heavy, hard, poin-
ted, sharp-edged, fragile or bulky objects in
the trunk.
Observe the loading guidelines (
Ypage 263).
Stowage areas263
Stowage and features
Z

Depending on the vehicle's equipment, the fol-
lowing may be in the stowage space:
Ran SD card slot
Ra multimedia connector unit with two USB
ports, e.g. for iPod®, iPhone®or MP3 player
(see the Digital Operator's Manual)
Ra mobile phone bracket
Ra small stowage space in the upper front sec-
tion
Stowage compartment in the doors
In stowage space :in the doors, you can store
bottles with a capacity of up to 34 fl. oz. (1.0 l),
a rolled-up fluorescent jacket (driver's door) and
the vehicle document wallet (front-passenger
door).
Additional stowage space
Depending on the equipment, the following
additional stowage areas are available in the
vehicle:
Rcard and coin holder in the dashboard above
the light switch (not suitable for holding thin
objects such as shopping tokens)
Rthe open stowage compartment in the center
console
Rstowage net in the front-passenger footwell
Rparcel net on the left-hand side in the trunk
Rstowage nets on the left and right in the foot- well of the rear bench seat
Observe the loading guidelines (
Ypage 263)
and the safety notes regarding stowage spaces
(
Ypage 263).
Rear bench seat through-loading fea-
ture
Important safety notes
GWARNING
If the rear bench seat/rear seat and seat
backrest are not engaged they could fold for-
wards, e.g. when braking suddenly or in the
event of an accident.
RThe vehicle occupant would thereby be
pushed into the seat belt by the rear bench
seat/rear seat or by the seat backrest. The
seat belt can no longer offer the intended
level of protection and could even cause
injuries.
RObjects or loads in the trunk cannot be
restrained by the seat backrest.
There is an increased risk of injury.
Before every trip, make sure that the seat
backrests and the rear bench seat/rear seat
are engaged.
!When folding the rear seat backrest for-
wards, ensure that there are no items lying on the seat cushions. These items could other-
wise be damaged or could themselves dam-
age the rear seats.
Observe the loading guidelines (
Ypage 263).
The left and right rear seat backrests can be fol-
ded down separately to increase the trunk capa-
city.
Folding the rear seat backrests forward
XVehicles without memory function: if neces-
sary, move the driver's or front-passenger
seat forward.
XVehicles with memory function: when one or
both parts of the rear seat backrest are folded
forward, the respective front seat moves
forward slightly, when necessary, in order to
avoid contact.
XOpen the trunk.
Stowage areas265
Stowage and features
Z

XPress the right or left button:on the rear
seat backrest.
The corresponding rear seat backrest is
released.
XFold corresponding rear seat backrest ;
forward.
XMove the driver's or front-passenger seat
back if necessary.
Folding the rear seat backrest back
!Make sure that the seat belt does not
become trapped when folding the rear seat
backrest back. Otherwise, it could be dam-
aged.
Left and right seat backrest
XMove the driver's or front-passenger seat
forward if necessary.
XFold rear seat backrest :back until it
engages.
If the rear seat backrest is not engaged and
locked, this will be shown in the multifunction
display in the instrument cluster. A warning
tone also sounds.
You should always engage the rear seat backr-
ests if you do not need the through-loading fea-
ture. This will prevent unauthorized access to
the trunk from the vehicle interior.
Securing loads
Cargo tie-down rings
Observe the following notes on securing loads:
RObserve the loading guidelines (Ypage 263).
RSecure the load using the cargo tie-down
rings.
RDistribute the load on the cargo tie-down
rings evenly.
RDo not use elastic straps or nets to secure a
load, as these are only intended as an anti-slip
protection for light loads.
RDo not route tie-downs across sharp edges or corners.
RPad sharp edges for protection.
XFold up the cargo tie-down rings next to the
rear seat backrest and put them through the
slots in the carpet.
266Stowage areas
Stowage and features