% Press briefly:
R Back
R In the Radio
Radio/Media Mediamenu: dese-
lects the track or station list or
list of available radio sources/
media
R Hides display messages
R Exits the telephone book/redial
memory % Press and hold:
R Calls up the standard display in
the Trip Trip menu Right control panel
~ R
Rejects or ends a call
R Exits telephone book/redial
memory 6 R
Makes or accepts a call
R Switches to the redial memory W
X R
Adjusts the volume 8 R
Mute ó
Switches on LINGUATRONIC; see
the separate operating instructions Multifunction display
:
Upper status bar with the follow-
ing possible displays and indicator
lamps:
Outside temperature
(Y page 243)
# Turn signal, left (Y page 126)
L Dipped-beam headlamps
(Ypage 125)
K Main-beam headlamps
(Ypage 126)
R Rear foglamp (Y page 125)
T Side lamps and licence plate light-
ing (Y page 125)
! Turn signal, right (Y page 126)
; Display
= Lower status bar with the follow-
ing possible displays:
Digital speed
è ECO start/stop function
(Ypage 162)
ë HOLD function (Y page 202)
j Active Parking Assist
(Ypage 212)
_ Adaptive Highbeam Assist PLUS
(Ypage 128)
a DISTRONIC PLUS Steering Assist
and Stop&Go Pilot (Y page 200)
Additional speedometer
(Y page 262)
120 km/h! Maximum permissible speed
exceeded (only for certain coun-
tries) 244
Displays and operationOn-board computer and displays
You will see one of the following display mes-
sages in the multifunction display:
R Telephone ready
Telephone ready or the name of the net-
work provider: the mobile phone has found a network and is ready to receive.
R Telephone No service
Telephone No service: there is no net-
work available or the mobile phone is
searching for a network.
i You can obtain further information about
suitable mobile phones and connecting
mobile phones via Bluetooth ®
:
R from any Mercedes-Benz Service Centre
R on the Internet at http://
www.mercedes-benz.com/connect
Accepting a call X
Press the 6button on the steering
wheel to accept an incoming call.
If someone calls you when you are in the
Telephone Telephone menu, a display message appears
in the multifunction display.
If you are not in the Telephone
Telephone menu, you can
still accept a call.
Rejecting or ending a call X
Press the ~button on the steering
wheel.
If you are not in the Tel
Tel menu, you can still
reject or end a call. Dialling an entry from the phone book X
Use ò on the steering wheel to call up
the list of menus.
X Press :or9 on the steering wheel
to select the Telephone Telephonemenu.
X Confirm by pressing aon the steering
wheel.
X Press the :,9ora button to
switch to the phone book.
X Press the :or9 button to select the
desired name.
or X To begin rapid scrolling: press and hold
the : or9 button for longer than
one second.
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 the6ora button
to start dialling.
or X If there is more than one number for a
particular name: press the6ora
button to display the numbers.
X Press the :or9 button 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.
Redialling The on-board computer saves the last names
or numbers dialled in the redial memory.
X Use ò on the steering wheel to call up
the list of menus.
X Press :or9 on the steering wheel
to select the Telephone Telephonemenu.
X Confirm by pressing aon the steering
wheel. Menus and submenus
255On-board computer and displays Z
Display messages
Possible causes/consequences and
M
MSolutions T!
÷
inoperative See inoperative See
Owner's Manual Owner's Manual EBD (electronic brake force distribution), ABS, ESP
®
, BAS,
PRE ‑SAFE ®
, HOLD function, hill start assist, Crosswind Assist,
adaptive brake lights, STEER CONTROL, Active Lane Keeping
Assist and Active Blind Spot Assist are unavailable due to a mal-
function.
BAS PLUS with Cross-Traffic Assist, PRE‑ SAFE®
Brake, PRE ‑SAFE®
PLUS and COLLISION PREVENTION ASSIST PLUS may also have
failed.
In addition, the ÷and! warning lamps light up in the
instrument cluster and a warning tone sounds.
G WARNING
The brake system continues to function normally, but without the functions listed above. The front and rear wheels could therefore
lock, for example, if you brake hard.
The steerability and braking characteristics may be severely affec- ted. The braking distance may increase in an emergency braking
situation.
If ESP ®
is not operational, ESP ®
is unable to stabilise the vehicle.
There is an increased danger of skidding and risk of an accident.
X Drive on carefully.
X Visit a qualified specialist workshop immediately. !
Release parking Release parking
brake brake The red
!indicator lamp flashes and a warning tone sounds. A
condition for automatic release of the electric parking brake is not
fulfilled (Y page 180).
You are driving with the electric parking brake applied.
X Release the electric parking brake manually. The red
!indicator lamp flashes and a warning tone sounds.
You are making an emergency stop using the electric parking
brake (Y page 180). !
Parking brake See Parking brake See
Owner's Manual Owner's Manual The yellow
!warning lamp lights up.
The electric parking brake is malfunctioning.
To apply:
X Switch the ignition off.
X Press the electric parking brake handle for at least ten seconds.
X Shift the transmission to P.
X Consult a qualified specialist workshop. Display
messages
269On-board computer and displays Z
Display messages
Possible causes/consequences and
M
MSolutions Collision Preven‐
Collision Preven‐
tion Assist Plus tion Assist Plus
currently unavail‐ currently unavail‐
able See Owner's able See Owner's
Manual Manual 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 sta-
tions 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 goes out.
COLLISION PREVENTION ASSIST PLUS is operational again.
If the display message does not disappear:
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Secure the vehicle to prevent it from rolling away (Y page 178).
X Restart the engine. Collision Preven‐ Collision Preven‐
tion Assist Plus tion Assist Plus
inoperative inoperative COLLISION PREVENTION ASSIST PLUS is temporarily inoperative
due to a malfunction. Adaptive Brake Assist may also have failed.
X Visit a qualified specialist workshop. PRE-SAFE
PRE-SAFE
Functions
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 sta-
tions 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
goes out.
PRE ‑SAFE ®
PLUS and PRE ‑SAFE®
Brake are operational again.
If the display message does not disappear:
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 178).
X Restart the engine. PRE-SAFE PRE-SAFE
Functions
Functions
limited See Own‐
limited See Own‐
er's Manual er's Manual PRE
‑SAFE ®
PLUS or PRE‑ SAFE®
Brake is unavailable due to a mal-
function. BAS PLUS might also be deactivated.
X Visit a qualified specialist workshop. Display
messages
273On-board computer and displays Z
Display messages
Possible causes/consequences and
M
MSolutions Radar sensors
Radar sensors
dirty See Owner's dirty See Owner's
Manual Manual At least one of the following driving systems or driving safety sys-
tems is temporarily restricted or inoperative:
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
Possible causes:
R the sensors in the radiator trim and/or in the bumpers are dirty
R the function of the driving system and/or driving safety system
is impaired due to heavy rain or snow
A warning tone also sounds.
Once the causes listed above no longer apply, the display message
goes out. All driving systems/driving safety systems are operative again.
If the display message does not disappear:
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 178).
X Switch off the engine.
X Clean the sensors (Y page 347) in the following locations:
R in the radiator trim
R in the front bumper
R in the rear bumper, particularly in the middle of the rear
bumper
X Restart the engine.
The display message disappears. ü ü If this symbol appears in the multifunction display, a seat belt
tongue has been inserted into a rear seat belt buckle.
Further information on the status indicator for the rear seat belts
(Y page 48). 274
Display
messagesOn-board computer and displays
Engine
Display messages
Possible causes/consequences and
M
MSolutions +
Top Top
up
upcoolant
coolant See
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 before doing so
(Y page 340).
X If the coolant needs topping up more often than usual, have the
engine coolant system checked at a qualified specialist work-
shop. ? ? The fan motor is faulty.
X At coolant temperatures below 125 †, drive to the nearest
qualified specialist workshop.
X Avoid putting the engine under heavy load as you do so, e.g.
driving in mountainous terrain and stop-start traffic. ?
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 is overheated can cause some fluids which 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 traf-
fic conditions, and switch off the engine.
X Secure the vehicle to prevent it from rolling away (Y page 178).
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 125 †. The engine may
otherwise be damaged.
X Pay attention to the coolant temperature display.
X If the temperature increases again, visit a qualified specialist
workshop immediately.
Under normal operating conditions and with the specified coolant level, the coolant temperature may rise to 124 †. 282
Display messagesOn-board computer and displays
Display messages
Possible causes/consequences and
M
MSolutions #
See Owner's Manual See Owner's Manual The battery is not being charged.
A warning tone also sounds.
Possible causes:
R faulty alternator
R torn poly-V-belt
R a malfunction in the electronics
X Stop the vehicle immediately, paying attention to road and traf-
fic conditions, and switch off the engine.
! Do not continue driving. The engine could otherwise overheat.
X Secure the vehicle to prevent it from rolling away (Y page 178).
X Consult a qualified specialist workshop. #
Stop vehicle See Stop vehicle See
Owner's Manual Owner's Manual The battery is no longer being charged and the battery charge level
is too low.
A warning tone also sounds.
X Stop the vehicle immediately, paying attention to road and traf-
fic conditions, and switch off the engine.
X Secure the vehicle against rolling away (Y page 178).
X Observe the instructions in the #See Owner's Manual See Owner's Manual
display message.
X Consult a qualified specialist workshop. #
Start engine See Start engine See
Owner's Manual Owner's Manual The engine is off and the battery charge level is too low.
X Switch off 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 a longer
distance.
The battery charges. Display
messages
283On-board computer and displays Z
Display messages
Possible causes/consequences and
M
MSolutions Active Lane Keep‐
Active Lane Keep‐
ing Assist cur‐ ing Assist cur‐
rently rently
unavailable
unavailable
See Owner's Manual
See Owner's Manual Active Lane Keeping Assist 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
R there are no lane markings for a longer period
R the lane markings are worn, dark or covered, e.g. by dirt or snow
Once the causes listed above no longer apply, the display message goes out.
Active Lane Keeping Assist is operational again.
If the display message does not disappear:
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 178).
X Clean the windscreen. Active Lane Keep‐ Active Lane Keep‐
ing Assist inoper‐ ing Assist inoper‐
ative ative Active Lane Keeping Assist is faulty.
X Visit a qualified specialist workshop. Active Blind Spot
Active Blind Spot
Assist currently Assist currently
unavailable See unavailable See
Owner's Manual Owner's Manual Active Blind Spot Assist is temporarily inoperative. Possible cau-
ses:
R the function is impaired due to heavy rain or snow
R the radar sensor system is outside the operating temperature
range
R the radar sensor system is temporarily inoperative, e.g. due to
electromagnetic radiation emitted by nearby TV or radio sta-
tions or other sources of electromagnetic radiation
Once the causes listed above no longer apply, the display message goes out.
Active Blind Spot Assist is operational again.
If the display message does not disappear:
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 178).
X Restart the engine. Active Blind Spot Active Blind Spot
Assist not availa‐ Assist not availa‐
ble when towing a ble when towing a
trailer See Own‐ trailer See Own‐
er's Manual er's Manual Active Blind Spot Assist is deactivated while towing a trailer.
You have established the electrical connection between the trailer
and your vehicle.
X Press aon the steering wheel to confirm the display mes-
sage. Display
messages
287On-board computer and displays Z