Page 259 of 593

The operation of
thefo llowing sy stems depends
on the trailer being connected cor rectly:
R Active Lane Keeping Assist
R ESP ®
R Parking Assist PARKTRONIC
R Active Parking Assist
R Blind Spot Assist or Active Blind Spot Assi st
Coupling up a trailer
* NO
TEDama getotheve hicle battery due
to full dischar ge Charging
the trailer battery using the po wer
supply of the trailer can damage theve hicle
batter y. #
Do not use theve hicle's po wer supply
to charge the trailer batter y.#
Remo vethe co ver from the ball head and
st ore it in a safe place (→ page113). #
Position the trailer on a le vel sur face behind
th eve hicle and couple it up totheve hicle. #
Open the soc ket cap. #
Inse rtthe plug with lug 1in groo ve3 on
th e soc ket. #
Turn the ba yonet coupling 2clockwise as
fa r as it will go. #
Let the cap engage. #
Secure the cable tothe trailer with cable ties
(only if you are using an adap ter cable). #
Make sure that the cable is alw ays slack for
ease of mo vement during cornering. #
Push the combination switch upwards/down‐
wa rds and check whe ther the cor responding
turn signal light on the trailer is flashing. A display message may appear on
the multifunc‐
tion display even if the trailer has been connec‐
te d cor rectly:
R LEDs ha vebeen ins talled in the trailer light‐
ing sy stem
R the cur rent has fallen below the trailer light‐
ing sy stem's minimum cur rent (50 mA)
% Accessories can be connected tothe perma‐
nent po wer supp lyup to180W, and tothe
po we r supp lythat is swit ched on via the igni‐
tion loc k.
Un coupling a trailer &
WARNING Risk of being crushed and
becoming trapped when uncoupling a
trailer
When uncoupling a trailer wi than engaged
ine rtia-activated brake, your hand may
become trapped between theve hicle and the
trailer dr awbar. #
Do not uncouple trailers with an
engaged overrun brake. 256
Driving and pa rking
Page 268 of 593

Ve
hicles with Traf fic Sign Assis t:de tected
instructions and traf fic signs (→ page 245). Ad
justing the in stru ment lighting #
Turn brightness control 1up or down.
The lighting of the instrument display and in
th e control elements of theve hicle interior is
adjus ted. Menus and submenus
Fu
nctions on the service menu of the on-
board compu ter On-board computer:
Service #
Toselect the function: swipe upwards or
down wards on the left-hand Touch Control. #
Press the left-hand Touch Control.
Fu nctions on theService menu:
R Message memory (→ page478)
R AdBlue :Ad blue ®
ra nge and fill le vel
R Tyres:
- Restart the tyre pressure loss warning
sy stem (→ page448)
- Che ckthe tyre pressure with the tyre
pressure monitor (→ page444)
- Restart the tyre pressure monitor
(→ page 445)
R ASSYST PLUS: calls up the service due date
(→ page 400) R
Vehicles with a widescreen cock pit:Cool-
ant : coolant temp erature display
R Engine oil level: engine oil le vel Calling up
the assistant display On-board computer:
Assistance
% Ve
hicles with the instrument display in
th e widescreen cockpit: whenyou ha ve
th e design set toProgressive ,yo u can view
th e assis tant displ ayinthe left-hand area of
th e instrument displa y.
The following displa ysare available on the assis‐
ta nt displ aymenu:
R Assis tant displ ay
R Attention le vel (→ page 243) #
Toswitch between the displa ys:swipe
upwards or down wards on the left-hand
To uch Control. In
stru ment Display and on-board computer 265
Page 269 of 593

St
atus displa yson the assis tant displ ay:
R é :AT TENTION ASSIST deactivated
R æ: Active Brake Assi stdeactivated
R Light lane markings: Active Lane Keeping
Assist enabled
R Green lane markings: Active Lane Keeping
Assist active R
Grey radar waves next tovehicle: Blind Spot
Assist activated
R Green radar waves next tovehicle: Blind Spot
Assist active
R Active Dis tance Assi stDISTRONIC displa ys
( → page 205)
R Displa ys theAc tive Lane Change Assi st
( → page 213)
R Displ ays ECO Assist Calling up displa
yson the trip menu On-board computer:
Trip
% Ve
hicles with an instrument display in
th e widescreen cockpit: whenyou ha ve
th e design set toProgressive ,yo u can view
information about the journey in the left-
hand area of the instrument displa y. #
Toselect a displa y:swipe upwards or down‐
wa rds on the left-hand Touch Control.
Displa yson theTrip menu:
R Standard display R
Range and cur rent fuel consu mption
When gliding mode is active, Gliding modeis
displa yed ins tead of the cur rent fuel con‐
su mp tion (→ page 174).
A recuperation displ ayis also available for
cer tain engines. If there is only a small
amount of fuel left in the fuel tank, the dis‐
play will show a vehicle being refuelled
ins tead of thera nge.
R ECO displ ay(→page 167)
R Trip computer From startandFrom reset
R Digital speedom eter
% Ve
hicles with an instrument display in
th eWi descreen Co ckpit: the digital speed‐
ome ter appears only in theClassic andSport
designs. 266
Instrument Display and on-board computer
Page 276 of 593
Sy
stem limits
The visibility is influenced bythefo llowing condi‐
tions:
R seat position
R the positioning of the display image
R light conditions
R wetro ad sur faces
R objects on the display co ver
R polarisation in sunglasses
% Inextreme sunlight, sections of the display
may appear washed out. You can co rrect this
by switching the head-up display off and on
again. Switching
the head-up display on/off #
Press button 1. In
stru ment Display and on-board computer 273
Page 289 of 593
Message
voice commands Vo
ice command Function
Text message to To
crea tea message. All address book names are available.
Reply To
reply toa message
Forward text message To
forw ard a message Overview of
vehicle voice commands Yo
u can use theve hicle voice commands to
directly call up the cor responding menus forthe
ve hicle settings.
Ve hicle voice commands Vo
ice command Function
Ambient light menu To
display ambient light settings
Ambient light "blue" To
switch ambient light toblue
Display and styles menu To
show display settings
Assistance menu To
display assis tance settings 286
LINGUATRONIC
Page 290 of 593
Vo
ice command Function
Scent menu To
display fragrance settings
Energy flow To
display energy flow settings
Ionisation menu To
display ionisation settings
Climate control menu To
display climate control settings
Automatic climate control driver on To
switch on the automatic climate control settings on the driver's side
Light menu To
display light settings
Massage menu To
display massage settings
Massage driver's seat on To
switch on the massage function forth e driver's seat
Massage driver's seat off To
switch off the massage function forth e driver's seat
Outside temperature To
display the outside temp erature
Engine data To
display engine data
Seats menu To
display seat adjustment settings
Seat heating front passenger level "2" To
set the seat heating forth e front passenger seat toleve l 2 LINGU
ATRO NIC 287
Page 301 of 593

Example:
renaming favo urites #
Call up the "Renaming favo urites" function
(→ page 294). #
Toenter a character: useyour finger to
write characters on theto uchpad.
The character is entered in the input line. If
dif fere nt interpr etations are possible, charac‐
te r suggestions are displa yed. #
Toselect a character suggestion: swipe up
or down on theto uchpad. #
Resume character input. #
Toenter a space: swiperight when the cur‐
sor is located in the input line. #
Todel ete a character: swipe left when the
cursor is loca ted in the input line. #
Toconfirm the entr y:press theto uchpad. #
Tofinish character entr y:swipe upwards.
or #
Press the% button.
Example: entering a destination (navigation) #
Ente rth e POI or address (→ page312). Sy
stem settings Display
Configuring display settings
Multimedia sy
stem:
System GDisplay and styles
Styl es #
Select Design. #
Select Sport,Classic orProgressive .
Ad apting the ambient lighting for the style #
Select Adjust ambient light. .
Ac tivate Oor deacti vate ª the function. This function adjusts
the ambient lighting for
th e selected display style.
Setting the display brightness #
Select Display brightness . #
Select a brightness value.
Switching the display off/on #
Off: select Display off . #
On: press a button, %,forex ample.
Displ aydesign #
Select Day/night design. #
Select Automatic, Day design orNight
design.
Ad ditional displ ayarea
Depending on theve hicle, various items of addi‐
tional information can be shown. The additional
display area comprises the left-hand or right-
hand third of the displa y. #
Select Additional display area .
The following display con tent can be selected:
R Dynamic 298
Multimedia sy stem
Page 305 of 593

Using a WPS PIN
#
Highlight a Wi-Fi network in the list. #
Select ¥Connect using WPS PIN input.
The multimedia sy stem generates an eight-
digit PIN. #
Enter this PIN on the device tobe connec ted. #
Confirm the entry.
Using a button
% This function is only available in a Wi-Fi fre‐
qu ency of 2.4 GHz. #
Highlight a Wi-Fi network in the list. #
Select ¥Connect via WPS PBC. #
Select "Connect via WPS PBC" in the options
on the device tobe connec ted. #
Press the WPS button on the device tobe
connec ted. #
Select Continue inthe multimedia sy stem.
Device has already been connected: #
Toautomatically connect: highlight aWi-Fi
network in the list. #
Activate ¥ Connect automaticallyO. #
Toconnect: highlight a Wi-Fi network in the
list. #
Select ¥Connect.
The connection is es tablished again. These
functions are possible when the device has
already been connected totheWi -Fi networ k.
Setting up a Wi-Fi hotspot
Multimedia sy stem:
System öConnectivity
Configuring the multimedia sy stem as a Wi-
Fi hotspot
% The availability of this function is dependent
on the count ry.
The type of connection es tablished depends on
th e device tobe connec ted. The function must
be suppor tedby the multimedia sy stem and by
th e device tobe connec ted. The type of connec‐
tion es tablished must be selected on the multi‐
media sy stem and on the device tobe connec‐
te d. #
Select Set up hotspot. #
Highlight Connect device to vehicle hotspot.
Generating a WPS PIN #
Select ¥Connect using WPS PIN genera-
tion . #
Ente rth e PIN shown in the media display on
th e device tobe connec ted and con firm.
Connecting using a WPS PIN #
Select ¥Connect using WPS PIN input. #
Select Enter WPS PIN. #
Enterth e PIN that is shown on theex tern al
device's display on the multimedia sy stem. #
Select Continue.
Connecting using a button
Re quirements:
R This function is only available in a Wi-Fi fre‐
qu ency of 2.4 GHz. #
Select ¥Connect via WPS PBC. #
Press the WPS button on the device tobe
connec ted or select Connect. #
Select Continue inthe multimedia sy stem. 302
Multimedia sy stem