stop start MERCEDES-BENZ C-CLASS CABRIOLET 2016 Repair Manual
[x] Cancel search | Manufacturer: MERCEDES-BENZ, Model Year: 2016, Model line: C-CLASS CABRIOLET, Model: MERCEDES-BENZ C-CLASS CABRIOLET 2016Pages: 377, PDF Size: 6.9 MB
Page 220 of 377

To ensure reliable operation of the failure indi-
cator, each LED chain in the trailer lighting must
be guaranteed a minimum current of 50 mA. Trailer with 7-pin connector
General notes Trailer with 7-pin connector:
you can connect
to the 13-pin socket on the ball coupling using
an adapter or, if necessary, an adapter cable.
Both can be obtained at a qualified specialist
workshop.
Fitting the adapter !
Make sure that there is sufficient cable play
so that the cable cannot become detached
when cornering.
! Remove the installed adapter cable before
folding in the ball coupling. Otherwise, dam-
age may occur to the rear bumper and the
adapter cable. X
Open the socket cover.
X Insert the connector with lug :into groove
= on the socket.
X Turn bayonet connection ;clockwise to the
stop.
X Let the cover engage.
X If you are using an adapter cable, secure the
cable to the trailer with cable ties. Problems with trailer towing
Problem
Possible causes/consequences and
M MSolutions The unlocked ball cou-
pling cannot be
engaged. X
Consult a qualified specialist workshop. The ball coupling does
not unlock even though:
R the vehicle is station-
ary
R no trailer cable is con-
nected
R the release switch to
unlock the ball cou-
pling has been pulled
for more than a sec-
ond The on-board voltage is too low.
X Start the engine.
If the ball coupling still does not unlock:
X Consult a qualified specialist workshop. Bicycle rack
General notes
When attached by clamping onto the ball cou-
pling on the trailer tow hitch, the maximum pay- load is 75 kg. You can transport up to three
bicycles.
The payload is calculated from the weight of the
bicycle rack and the load of the bicycle rack. Bicycle rack
217Driving and parking Z
Page 226 of 377

Possible readings on the multifunction dis-
play:
R ZGearshift recommendation for manual
transmission (Y page 144) or for automatic
transmission (manual gearshifting)
(Y page 152)
R j Active Parking Assist (Y page 188)
R È SPEEDTRONIC (Y page 169)
R ¯ Cruise control (Y page 167)
R a DISTRONIC PLUS Steering Assist and
Stop&Go Pilot (Y page 178)
R _ Adaptive Highbeam Assist Plus
(Y page 117)
R è ECO start/stop function (Y page 137)
R ë HOLD function (Y page 179)
R ð Maximum permissible speed exceeded
(for certain countries only) Head-up display
General notes The Head-up Display projects information from
the navigation system and the driver assistance
systems above the dashboard into the driver's
field of vision. This way, the Head-up Display
enables drivers to see information without hav-
ing to take their eyes off the road.
A requirement for the display of the content is
that the following functions are available in the
vehicle and are switched on:
R Cruise control
R SPEEDTRONIC
R DISTRONIC PLUS
R Traffic Sign Assist
R Navigation
Important safety notes The head-up display is only an aid and is not a
substitute for attentive driving.
Speed limits and overtaking restrictions are not
always correctly displayed. Traffic signs always
have priority over the Traffic Sign Assist display.
The visibility of the head-up display is influenced by the following conditions:
R the driver's seat position
R the positioning of the display image
R the general light conditions R
sunglasses with polarisation filters
R wet road surfaces
R blocking of sunlight by objects on the display
cover
In the event of extreme sunlight, sections of the
display may fade. This can be reversed by
switching the head-up display off and on again.
i Vehicles with the head-up display are equip-
ped with a special windscreen. Should repairs
be necessary, have the windscreen replaced
at a qualified specialist workshop.
Displays and operation Switching the head-up display on/off
X
Press the :button.
When the head-up display is switched on, the display appears in the driver's field of vision.
Standard displays on the head-up display :
Navigation instructions
; Current speed
= Detected instructions and traffic signs
? Cruise control, SPEEDTRONIC or
DISTRONIC PLUS set speed Displays and operation
223On-board computer and displays Z
Page 234 of 377

i
You can obtain further information about
suitable mobile phones and connecting
mobile phones via Bluetooth ®
:
R on the Internet at http://www.mercedes-
benz.com/connect
R at any Mercedes-Benz Service Centre
Accepting a call If someone calls you when you are in the
Tele‐ Tele‐
phone
phone menu, a display message appears in the
multifunction display.
You can accept a call at any time irrespective of
the selected menu.
X Press the 6button on the steering wheel
to accept the call.
Rejects or ends a call X
Press the ~button on the steering wheel
to reject or end the call.
Selecting an entry in the phone book X
Press òon the steering wheel to open the
menu list.
X Press :or9 on the steering wheel to
select the Telephone
Telephone menu.
X Confirm by pressing aon the steering
wheel.
X Press :, 9ora to switch to the
phone book.
X Press :or9 to select the names one
after the other.
or X To start rapid scrolling: press and hold:
or 9 for longer than one second.
The names are displayed quickly one after the
other in the phone book.
If you press and hold the :or9 button
for longer than five seconds, the name with
the next or previous initial letter in the alpha-
bet appears.
Rapid scrolling stops when you release the
button or reach the end of the list.
X If only one telephone number is stored for
a name: press the 6ora button to
start dialling.
or X
If there is more than one number for a
name: press the 6ora button to dis-
play the numbers.
X Press :or9 to select the number you
want to dial.
X Press the 6ora button to start dial-
ling.
or
X To exit the telephone book: press the~
or % button briefly.
Redialling The on-board computer saves the last names or
numbers dialled in the redial memory.
X Press òon the steering wheel to open the
menu list.
X Press :or9 on the steering wheel to
select the Telephone Telephone menu.
X Confirm by pressing aon the steering
wheel.
X Press the 6button to switch to the redial
memory.
X Press :or9 to select the desired
name or number.
X Press the 6ora button to start dial-
ling.
or X To exit the redial memory: press the~
or % button briefly. Assistance graphic menu
X
Press òon the steering wheel to open the
menu list.
X Press :or9 on the steering wheel to
select the Assistance graphic Assistance graphic menu. Menus and submenus
231On-board computer and displays Z
Page 242 of 377

?
ECO Start/Stop Active
Active/InactiveInactive/ Off
Off
A ESP ®
On
On/Off Off or SPORT handling mode
Sport
Sport
SETUP displays the following functions and set- tings:
R Gear indicator
R Digital speedometer
R Drive system setting
R Suspension mode
R Steering setting
R Setting of the ECO start/stop function
R ESP ®
(Electronic Stability Program) status
Select SETUP X Use ò on the steering wheel to call up the
menu list.
X Press the :or9 button on the steering
wheel to select the AMG
AMG menu.
X Confirm by pressing aon the steering
wheel.
X Press 9repeatedly until SETUP appears.
RACE TIMER Displaying and starting the RACETIMER
:
Lap
; RACETIMER
The RACETIMER is only intended for use on a
closed race circuit. Do not use the function on
public roads.
You can start the RACETIMER when the engine is running or the ignition is switched on.
X Use ò on the steering wheel to call up the
list of menus.
X Press :or9 on the steering wheel to
select the AMG
AMG menu. X
Confirm by pressing aon the steering
wheel.
X Press :or9 repeatedly until the
RACETIMER appears.
X To start: press the abutton to start the
RACETIMER.
Starting a new lap :
Lap
; RACETIMER
= Quickest lap time
X Press the :or9 button to select New New
Lap
Lap .
X Press ato confirm.
A maximum of 32 laps may be stored.
Stopping the RACETIMER X
Press :or9 to select Stop
Stop.
X Press ato confirm. Menus and submenus
239On-board computer and displays Z
Page 250 of 377

Display messages
Possible causes/consequences and
M
MSolutions !
Parking brake inop‐ Parking brake inop‐
erative erative The yellow
!warning lamp lights up. The red !indicator lamp
flashes for about ten seconds after the electric parking brake has been applied or released. It then goes out or remains lit.
The electric parking brake is malfunctioning, e.g. because of over-
voltage or undervoltage.
X Rectify the cause of the overvoltage or undervoltage, e.g. by charg-
ing the battery or restarting the engine.
X Apply or release the electric parking brake.
If the electric parking brake still cannot be applied or released: X Switch off the ignition and switch it back on.
X Apply or release the electric parking brake.
If the electric parking brake still cannot be released: X Consult a qualified specialist workshop.
If the electric parking brake still cannot be applied:
X Consult a qualified specialist workshop. The yellow
!warning lamp lights up and the red !indicator
lamp flashes.
The electric parking brake cannot be applied manually.
X Vehicles with manual transmission: engage first gear.
X Vehicles with automatic transmission: shift the transmission to
position P.
X Consult a qualified specialist workshop. J
Check brake fluid Check brake fluid
level level There is insufficient brake fluid in the brake fluid reservoir.
In addition, the red Jwarning lamp lights up on the instrument
cluster and a warning tone sounds.
G WARNING
Braking efficiency may be impaired.
There is a risk of an accident!
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions. Do not continue driving.
X Secure the vehicle against rolling away (Y page 159).
X Consult a qualified specialist workshop.
X Do not top up the brake fluid. This does not correct the fault. #
Check Check
brake
brakepad
padwear
wear The brake pads/linings have reached their wear limit.
X Consult a qualified specialist workshop. G
Inoperative Inoperative Vehicles with Audio 20 multimedia system:
Malfunction of one or more main functions of the MB Contact system.
X Consult a qualified specialist workshop. Display
messages
247On-board computer and displays Z
Page 251 of 377

Display messages
Possible causes/consequences and
M
MSolutions G
Inoperative Inoperative Vehicles with COMAND Online multimedia system:
Malfunction of one or more main functions of the Mercedes connect
me system.
X Consult a qualified specialist workshop. Collision Preven‐ Collision Preven‐
tion Assist Plus tion Assist Plus
currently unavaila‐ currently unavaila‐
ble ble
See
SeeOwner's
Owner's Man‐
Man‐
ual
ual COLLISION PREVENTION ASSIST PLUS is temporarily inoperative.
Possible causes:
R The radar sensor system is temporarily inoperative, e.g. due to
electromagnetic radiation emitted by nearby TV or radio stations or other sources of electromagnetic radiation
R The system is outside the operating temperature range
R The on-board voltage is too low.
Once the causes listed above no longer apply, the display message
disappears.
COLLISION PREVENTION ASSIST PLUS is operational again.
If the display message does not disappear:
X Stop the vehicle, paying attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 159).
X Restart the engine. Collision Preven‐ Collision Preven‐
tion Assist Plus tion Assist Plus
inoperative inoperative COLLISION PREVENTION ASSIST PLUS is inoperative due to a mal-
function. Adaptive Brake Assist may also have failed.
X Consult a qualified specialist workshop immediately. PRE-SAFE inopera‐ PRE-SAFE inopera‐
tive See Owner's tive See Owner's
Manual Manual
Important PRE-SAFE
®
functions have failed. All other occupant safety
systems, e.g. airbags, remain available.
X Consult a qualified specialist workshop immediately. PRE-SAFE Functions
PRE-SAFE Functions
currently limited currently limited
See Owner's Manual See Owner's Manual
PRE
‑SAFE ®
PLUS or PRE‑ SAFE®
Brake is temporarily inoperative.
Possible causes:
R The function is impaired due to heavy rain or snow
R The radar sensor system is temporarily inoperative, e.g. due to
electromagnetic radiation emitted by nearby TV or radio stations or
other sources of electromagnetic radiation
R Mercedes-AMG vehicles: ESP ®
is deactivated
R The system is outside the operating temperature range
R The on-board voltage is too low.
Once the causes listed above no longer apply, the display message
disappears.
PRE ‑SAFE ®
PLUS and PRE ‑SAFE®
Brake are operational again.
If the display message does not disappear:
X Stop the vehicle, paying attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 159).
X Restart the engine.
X Mercedes-AMG vehicles: reactivate ESP ®
(Y page 74). 248
Display
messagesOn-board computer and displays
Page 252 of 377

Display messages
Possible causes/consequences and
M
MSolutions PRE-SAFE Functions
PRE-SAFE Functions
limited limited
See
SeeOwner's
Owner's
Manual
Manual PRE
‑SAFE ®
PLUS or PRE‑ SAFE®
Brake is unavailable due to a mal-
function. BAS PLUS with Cross-Traffic Assist may also have failed.
X Consult a qualified specialist workshop immediately. Radar
Radar
sensors
sensors dirty
dirty
See Owner's Manual
See Owner's Manual The radar sensor system is malfunctioning.
Possible causes:
R Dirt on sensors
R Heavy rain or snow
R Driving on inter-urban roads without traffic or infrastructure, e.g. in
desert-like areas
At least one driving system or driving safety system is malfunctioning
or is temporarily unavailable:
R PRE-SAFE ®
PLUS
R PRE-SAFE ®
Brake
R COLLISION PREVENTION ASSIST PLUS
R Active Lane Keeping Assist
R Active Blind Spot Assist
R DISTRONIC PLUS with Steering Assist and Stop&Go Pilot
If the front radar system sensor is dirty, Active Blind Spot Assist will
not perform a course-correcting brake application.
Once the cause of the problem is no longer present, the driving sys-
tems and driving safety systems will be available again. The display
message disappears.
If the display message does not disappear:
X Stop the vehicle, paying attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 159).
X Switch off the engine.
X Clean all sensors (Y page 319).
X Restart the engine.
The display message disappears. 6
Restraint sys. mal‐ Restraint sys. mal‐
function Consult function Consult
workshop workshop The restraint system is malfunctioning. The
6warning lamp also
lights up on the instrument cluster.
G WARNING
The airbags or belt tensioners may either be triggered unintentionally or, in the event of an accident, may not be triggered.
This poses an increased risk of injury!
X Consult a qualified specialist workshop immediately.
Further information about the restraint system (Y page 42). Display
messages
249On-board computer and displays Z
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Display messages
Possible causes/consequences and
M
MSolutions b
Switch on headlamps Switch on headlamps You are driving without dipped-beam headlamps.
X
Turn the light switch to the Lorà position. Adaptive Highbeam Adaptive Highbeam
Assist Plus cur‐ Assist Plus cur‐
rently unavailable rently unavailable
See Owner's Manual See Owner's Manual Adaptive Highbeam Assist Plus is deactivated and temporarily inop-
erative. Possible causes:
R The windscreen is dirty in the camera's field of vision.
R Visibility is impaired due to heavy rain, snow or fog.
X Clean the windscreen.
If the system detects that the camera is fully operational again, the
Adaptive Highbeam Assist Plus available again
Adaptive Highbeam Assist Plus available again message is
displayed.
Adaptive Highbeam Assist Plus is operational again. Adaptive Highbeam Adaptive Highbeam
Assist Plus inoper‐ Assist Plus inoper‐
ative ative Adaptive Highbeam Assist Plus is faulty.
X Consult a qualified specialist workshop. Engine
Display messages
Possible causes/consequences and
M
MSolutions +
Top up coolant See Top up coolant See
Owner’s Manual Owner’s Manual The coolant level is too low.
! Avoid making long journeys with too little coolant in the engine
cooling system. The engine will otherwise be damaged.
X Top up the coolant, observing the warning notes when doing so
(Y page 312).
If you have to top up the coolant frequently: X Contact a qualified specialist workshop and have the engine cooling
system checked. ? The fan motor is faulty.
X If the coolant temperature is below 120 †, drive on to the nearest
qualified specialist workshop.
X Avoid heavy loads on the engine as you do so, e.g. driving in moun-
tainous terrain and stop-start traffic. 254
Display
messagesOn-board computer and displays
Page 258 of 377

Display messages
Possible causes/consequences and
M
MSolutions ?
Coolant Stop vehi‐ Coolant Stop vehi‐
cle Switch engine cle Switch engine
off off The coolant is too hot.
A warning tone also sounds.
G WARNING
Never drive with an overheated engine. Driving when your engine has
overheated can cause any fluids that may have leaked into the engine compartment to catch fire.
In addition, steam from an overheated engine can cause serious
burns, which can occur just by opening the bonnet.
There is a risk of injury!
X Stop the vehicle immediately, paying attention to road and traffic
conditions, and switch off the engine.
X Secure the vehicle against rolling away (Y page 159).
X Wait until the engine has cooled down.
X Make sure that the air supply to the engine radiator is not blocked,
e.g. by frozen slush.
X Do not start the engine again until the display message goes out and
the coolant temperature is below 120 †. The engine may otherwisebe damaged.
X Pay attention to the coolant temperature gauge.
If the temperature increases again:
X Consult a qualified specialist workshop immediately.
Under normal operating conditions and with the specified coolant
level, the coolant temperature may rise to 120 †. #
See Owner's Manual See Owner's Manual The battery is no longer being charged.
A warning tone also sounds.
Possible causes:
R faulty alternator
R torn poly-V-belt
R a malfunction in the electronics
! Do not continue driving. The engine could otherwise overheat.
X Stop the vehicle immediately, paying attention to road and traffic
conditions, and switch off the engine.
X Secure the vehicle against rolling away (Y page 159).
X Consult a qualified specialist workshop. Display
messages
255On-board computer and displays Z
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Display messages
Possible causes/consequences and
M
MSolutions #
Stop vehicle See Stop vehicle See
Owner's Manual Owner's Manual The battery is no longer being charged and the charge status is too
low.
A warning tone also sounds.
X Stop the vehicle immediately, paying attention to road and traffic
conditions, and switch off the engine.
X Secure the vehicle against rolling away (Y page 159).
X Observe the instructions in the display #See
See Owner's Owner's Manual
Manual
message.
X Consult a qualified specialist workshop. #
Stop vehicle Leave Stop vehicle Leave
engine running engine running The battery charge status is too low.
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions. Do not continue driving.
X Leave the engine running.
X Wait until the display message disappears before pulling away. #
Start engine See Start engine See
Owner's Manual Owner's Manual The engine is off and the charge status is too low.
X Switch off any electrical consumers that you do not need, such as
the rear window heating and interior lighting.
X Leave the engine running for a few minutes, or drive for an extended
period.
The battery charges. 4
Check Check
eng.
eng.oil
oillev.
lev.
when
when next
nextrefuelling
refuelling The engine oil level has dropped to the minimum level.
A warning tone also sounds.
! Avoid long journeys when there is too little coolant in the cooling
system. Otherwise the engine will be damaged.
X Check the engine oil level when next refuelling, at the latest
(Y page 310).
X If necessary, top up the engine oil (Y page 311).
If you have to top up the engine oil frequently:
X Contact a qualified specialist workshop and have the engine
checked.
Information on approved engine oils can be obtained from a qualified specialist workshop or on the internet at http://bevo.mercedes-
benz.com. 256
Display
messagesOn-board computer and displays