Parking
X Apply the electric parking brake.
The red !indicator lamp in the instru-
ment cluster lights up.
X Use the DIRECT SELECT lever to shift the
automatic transmission to P.
X Switch the ignition off.
The READY indicator in the instrument clus-
ter goes out.
Further information on parking and switching off the internal combustion engine
(Y page 208). Hybrid operation
281Driving and parking Z
Problems with hybrid operation
Internal combustion engine Problem
Possible causes/consequences and
M
MSolutions You cannot start the
internal combustion
engine. The multifunc-
tion display shows no
display messages. The
READY indicator in the
multifunction display is
off. For example, the self-diagnosis is not yet complete or the hybrid
system is malfunctioning.
X Switch off the ignition and turn it back on.
X Try to start the internal combustion engine again.
If the internal combustion engine still does not start: X Consult a qualified specialist workshop. You wish to pull away,
but the ECO start/stop
function does not start
the internal combus-
tion engine. The READY
indicator in the multi-
function display is off. The ECO start/stop function has failed. The warning and indicator
lamps in the instrument cluster light up.
X Move the transmission selector lever to P.
X Switch off the ignition and turn it back on.
X Start the engine. The hybrid system is malfunctioning.
X Consult a qualified specialist workshop. Hybrid system
Problem
Possible causes/consequences and
M MSolutions The hybrid system was
deactivated automati-
cally. You have been in an accident.
The hybrid system remains deactivated if:
R the internal combustion engine cannot be restarted after a few
seconds.
R the red SRS warning lamp 6in the instrument cluster is lit.
X Consult a qualified specialist workshop. The hybrid system was
deactivated automati-
cally. The multifunction
display also shows a
display message. An electrical short circuit has occurred in the hybrid system or an
electrical connection has been disconnected.
X Observe the additional display messages in the multifunction
display (Y page 314).
X Consult a qualified specialist workshop. 282
Hybrid operationDriving and parking
X
Pull release knob :until the ball coupling
unlocks.
The ball coupling folds down from under the rear bumper. The indicator lamp on the
release knob flashes.
Do not attempt to speed this process up by
applying additional pressure with your foot. The system could otherwise be mechani-
cally damaged. X
Press the ball coupling in the direction of
the arrow until it engages audibly behind
the bumper.
The indicator lamp on the release knob
goes out and the message in the multifunc-
tion display disappears. Trailer power supply
! You can connect accessories with a
power rating of up to 240 W to the perma-
nent power supply and with a power rating of up to 180 W to the power supply that is
switched on via the ignition lock. The trailer battery may not be charged from
the power supply.
When it leaves the factory, your vehicle's
trailer socket is equipped with a permanent
power supply and a power supply that is
switched on via the ignition lock.
The permanent power supply is supplied via
trailer socket pin 9.
The power supply that is switched on via the
ignition lock is supplied via trailer socket pin
10.
The trailer's permanent power supply is
switched off in the event of low vehicle supply
voltage and after six hours at the latest.
You can find more information about fitting
the trailer electrics at a qualified specialist
workshop.
X To switch the connected power supply
on or off: turn the key in the ignition lock to
position 2or 0respectively (Y page 181). Bulb failure indicator for LED lamps
If LED lamps are fitted in the trailer, an error
message may appear in the multifunction dis-
play even if there is no fault. The reason for
the error message may be that the current
has fallen below the minimum of 50 mA.
To ensure reliable operation of the bulb failure indicator, 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 con-
nect 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. Towing a trailer
287Driving and parking Z
Operating the on-board computer
:
Multifunction display
; Right control panel
= Left control panel
X To activate the on-board computer: turn
the key to position 1in the ignition lock.
Vehicles with manual transmission: if you
remove the key then quickly re-insert it and
turn to position 1, the on-board computer/
instrument cluster is not activated.
You can control the multifunction display and
the settings in the on-board computer using
the buttons on the multifunction steering
wheel.
Left control panel ò R
Calls up a main menu 9
: Press briefly:
R Scrolls through lists
R Selects a menu or function
R In the Radio Radio/Media Mediamenu:
opens the track or station list
and selects an audio track or
video scene
R In the Telephone Telephone menu:
switches to the phone book and
selects a name or a telephone
number 9
: Press and hold:
R Rapid scrolling in all lists
R In the Radio Radio/ Media
Media menu:
selects a station, audio track or
video scene using rapid scrolling
R In the Telephone Telephone menu: starts
rapid scrolling if the phone book is open a R
In all menus: confirms the selec-
ted entry in the list
R In the Radio
Radio/Media Mediamenu:
opens the list of available radio
sources/media
R In the Telephone Telephone menu:
switches to the phone book and
starts dialling the selected num-
ber ñ
Switches off LINGUATRONIC, see
the separate operating instructions
% 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 294
Displays and operationOn-board computer and displays
Trip menu
Standard display X
Press and hold the %button on the
steering wheel until the Trip
Tripmenu with
trip meter :and total distance
recorder ;is shown.
Displaying the range and current fuel
consumption X
Use ò on the steering wheel to call up
the list of menus.
X Press the :or9 button on the steer-
ing wheel to select the Trip
Tripmenu.
X Confirm by pressing aon the steering
wheel.
X Press the :or9 button to select
approximate range :and current fuel con-
sumption ;.
Approximate range :that can be covered is
calculated according to your current driving
style and the amount of fuel in the tank. If
there is only a small amount of fuel left in the fuel tank, the display shows a vehicle being refuelled
Cinstead of approximate
range :.
Recuperation display =shows you if energy
has been recuperated from the kinetic energy
in overrun mode and saved in the battery.
Recuperation display =depends on the
engine installed and is therefore not available
in all vehicles.
Information on the total electric range in
hybrid vehicles can be found in the "Hybrid
drive" section (Y page 276).
ECO display X
Use ò on the steering wheel to call up
the list of menus.
X Press the :or9 button on the steer-
ing wheel to select the Trip Tripmenu.
X Confirm by pressing aon the steering
wheel.
X Use the :or9 button to select ECO
DISPLAY.
If the ignition remains switched off for longer than four hours, the ECO display will be auto-
matically reset.
For further information on the ECO display,
see (Y page 211). 298
Menus and submenusOn-board computer and displays
Trip computer "From start" or "From
reset" :
Distance
; Duration
= Average speed
? Average fuel consumption
X Use ò on the steering wheel to call up
the list of menus.
X Press the :or9 button on the steer-
ing wheel to select the Trip
Tripmenu.
X Confirm by pressing aon the steering
wheel.
X Press the :or9 button to select
From start
From start orFrom reset
From reset.
The values in the From start
From startsubmenu are
calculated from the start of a journey whilst
the values in the From reset
From reset submenu are
calculated from the last time the submenu
was reset (Y page 299).
The From start
From start trip computer is automati-
cally reset if:
R the ignition has been switched off for more
than four hours.
R 999 hours have been exceeded.
R 9,999 kilometres have been exceeded.
The From reset
From reset trip computer is automati-
cally reset if the value exceeds 9,999 hours or
99,999 kilometres. Digital speedometer
X
Use ò on the steering wheel to call up
the list of menus.
X Press the :or9 button on the steer-
ing wheel to select the Trip
Tripmenu.
X Confirm by pressing aon the steering
wheel.
X Press the :or9 button to select the
digital speedometer.
Resetting values X
Use ò on the steering wheel to call up
the list of menus.
X Press the :or9 button on the steer-
ing wheel to select the Trip
Tripmenu.
X Confirm by pressing aon the steering
wheel.
X Press the :or9 button to select the
function that you wish to reset.
X Press the abutton.
X Press the :button to select Yes
Yesand
press the abutton to confirm. Menus and submenus
299On-board computer and displays Z
Activating/deactivating PRE-SAFE
®
Brake
PRE ‑SAFE ®
Brake is only available in vehicles
with DISTRONIC PLUS.
X Use ò on the steering wheel to call up
the list of menus.
X Press the :or9 button on the steer-
ing wheel to select the Settings
Settings menu.
X Confirm by pressing aon the steering
wheel.
X Use : or9 to select the Assis‐ Assis‐
tance
tance submenu.
X Press ato confirm.
X Press the :or9 button to select
PRE-SAFE Brake
PRE-SAFE Brake.
X Press ato confirm.
The current selection is displayed.
X To activate/deactivate: press thea
button again.
When PRE-SAFE ®
Brake is deactivated, the
æ symbol appears in the Assistance
Assistance
graphic
graphic menu in the multifunction dis-
play.
For more information on PRE‑SAFE ®
Brake,
see (Y page 82).
Activating/deactivating Blind Spot Assist
X Use ò on the steering wheel to call up
the list of menus.
X Press the :or9 button on the steer-
ing wheel to select the Settings
Settings menu.
X Confirm by pressing aon the steering
wheel.
X Use : or9 to select the Assis‐ Assis‐
tance
tance submenu.
X Press ato confirm.
X Press the :or9 button to select
Blind Spot Assist
Blind Spot Assist .
X Press ato confirm.
The current selection is displayed.
X To activate/deactivate: press thea
button again.
When Blind Spot Assist or Active Blind Spot Assist is activated, grey radar waves prop- agating backwards appear next to the vehi-
cle in the Assistance graphic Assistance graphic menu in
the multifunction display.
For further information about Blind Spot
Assist, see (Y page 259).
For further information about Active Blind
Spot Assist, see (Y page 263).
Setting ATTENTION ASSIST X Use ò on the steering wheel to call up
the list of menus.
X Press the :or9 button on the steer-
ing wheel to select the Settings Settingsmenu.
X Confirm by pressing aon the steering
wheel.
X Use : or9 to select the Assis‐
Assis‐
tance
tance submenu.
X Press ato confirm.
X Press the :or9 button to select
Attention Assist
Attention Assist .
X Press ato confirm.
X Press the :or9 button to set Off
Off,
Standard
Standard orSensitive
Sensitive .
X Press the abutton to confirm the selec-
tion.
When ATTENTION ASSIST is deactivated,
the é symbol appears in the Assis‐ Assis‐
tance graphic
tance graphic menu in the multifunction
display when the ignition is on.
For further information about ATTENTION
ASSIST, see (Y page 255).
Setting Lane Keeping Assist
X Use ò on the steering wheel to call up
the list of menus.
X Press the :or9 button on the steer-
ing wheel to select the Settings Settingsmenu.
X Confirm by pressing aon the steering
wheel.
X Use : or9 to select the Assis‐
Assis‐
tance
tance submenu.
X Press ato confirm.
X Press :or9 to select Lane Keep‐
Lane Keep‐
ing Assist
ing Assist . Menus and submenus
309On-board computer and displays Z
Display messages
Possible causes/consequences and
M
MSolutions The red
!indicator lamp flashes and a warning tone sounds.
You are making an emergency stop using the electric parking
brake (Y page 209). !
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 Vehicles with manual transmission: engage first gear.
X Vehicles with automatic transmission: shift the transmission
to P.
X Consult a qualified specialist workshop. The yellow
!warning lamp and the red !indicator lamp are
lit.
The electric parking brake is malfunctioning.
To release:
X Switch off the ignition and turn it back on.
X Release the electric parking brake manually.
or X Release the electric parking brake automatically (Y page 209).
If the electric parking brake still cannot be released: X Do not drive on.
X Consult a qualified specialist workshop. Display
messages
319On-board computer and displays Z