The
following information is displa yed in the
driver display:
R The length of the journey since the last break
R The attention le vel de term ined byATTENTION
ASSIS T:
- The more segments 2ofthe circle dis‐
pla yed, the higher the de tected attention
le ve l.
- Fewe r segments 2are displa yed in the
circle as the attention le vel decreases.
R Microsleep de tection 1status:
- Deactivated: display 1is hidden. -
Activated but not operational: display 1
is gr ey.
- Activated and operational: display 1is
green.
If AT TENTION ASSIST is unable tocalculate the
attention le vel and cannot issue a warning, the
System suspended messageappears.
If th e sy stem, which uses the driver camera,
de tects indicators of microsleep, theATTEN-
TION ASSIST Microsleep Take a break! warning
message appears in the driver display and a
wa rning tone sounds simultaneously. This warn‐
ing message must be con firm ed byTouch Con‐
trol. It is recommended that you take a break
immediatel y.
If a warning is given in the driver displa y,the
multimedia sy stem of fers to sear chfor a rest
area. You can select a rest area and start naviga‐
tion tothis rest area.
AT TENTION ASSIST with microsleep de tection is
acti vated automatically when the engine is
re star ted. The last selected sensitivity le vel
re mains stored. Sy
stem limits
AT TENTION ASSIST is active in the 60 km/h to
200 km/h speed range.
The microsleep de tection function is available at
a speed of 20 km/h and abo ve.
Pa rticularly in thefo llowing situations, ATTEN‐
TION ASSIST only functions in a restricted man‐
ner and warnings may be dela yed or not occur:
R Ifyo u ha vebeen driving for less than appr ox‐
imately 30 minutes.
R Ifth ero ad condition is poor (une venro ad
sur face or po tholes).
R Ifth ere is a strong side wind.
R Ifyo u adopt a sporty driving style (high cor‐
nering speeds or high rates of acceleration).
R Ifth eSt eering Assist function of Active Dis‐
ta nce Assi stDISTRONIC is acti ve.
R Ifth e clock is set tothe incor rect time.
R Ifyo uch ange lanes and vary your speed fre‐
qu ently In active driving situations. Driving and parking
227
Microsleep de
tection also does not function
when the driver camera cann otdetect theey es
of the driver, as a result of thefo llowing factors,
fo rex ample:
R The driver's eyes are co vered due tothe
st eering column position, forex ample.
R Poor lighting conditions.
R Some types of spectacles or sunglasses.
R The driver's line of vision is outside the driver
camera's field of vision.
Also obser veany information rega rding display
messages that can be displa yed in the driver dis‐
pla y.
The tiredness and alertness assessment of
AT TENTION ASSIST with microsleep de tection is
re set and restar ted when continuing the journey
in thefo llowing situations:
R Ifyo u swit choff the engine.
R Ifyo u unfas tenyo ur seat belt and open the
driver's door (e.g. tochange drivers or take a
break). Setting
ATTENTION ASSI ST
Multimedia sy stem:
4 © 5
Settings 5
Assistance
5 Assistance 5
ATTENTION ASSIST
Setting the sensitivity #
Tapth e cur rent setting. #
Select Standard orSensitive .
Ac tivating/deactivating the mic rosleep
wa rning #
Activate/deactivate Microsleep warning. Limiter
Fu
nction of the limiter
The limiter restricts the speed of theve hicle. To
re duce the speed tothe set speed, the limiter
applies the brakes automaticall y.
Yo u can limit the speed as follo ws:
R Variable: for a short-term speed restriction,
e.g. in built-up areas
R Perm anen t:for a longer-term speed restric‐
tion, e.g. in winter tyre mode The
variable limiter is operated using the cor re‐
sponding steering wheel buttons (/ page 232).
Yo u can store any speed abo ve20 km/h up to
th e maximum design speed or up tothe set win‐
te r tyre limit. You can also per form settings
while theve hicle is stationary if theve hicle has
been star ted.
Obser vethe no tes on driving sy stems and your
re sponsibility; you may otherwise failto recog‐
nise dangers (/ page 219).
Messages in the driver display
R È (gre y): variable limiter is selec ted but
not yet acti vated.
R È (flashes gr ey):va riable limiter is temp o‐
rari lypassive.
R È (green): variable limiter is activated.
A stored speed appears under theÈ display
and is indicated in the speedome ter.
When the driving speed is greater than the
st ored speed, theÈ display flashes. 228
Driving and parking
R
If a loss of tyre pressure or a defective tyre
has been de tected and displ ayed.
R In complex traf fic situations whe reobjects
cannot always be clearly identified.
R If pedestrians, cyclists or vehicles mo ve
qu ickly into the sensor de tection range.
R Ifro ad users are hidden by other objects or
are located close to other objects.
R Ifth e typical outline of a pedestrian or cyclist
cann otbe distinguished from the back‐
ground.
R If a pedestrian or cyclist is not de tected as
su ch , e.g. due tospecial clo thing or other
objects.
R Ifth e driver's seat belt is not fastened.
R On bends with a tight radius.
% The Active Brake Assi stsensors adjust auto‐
matically while a cer tain dis tance is being
driven af terth eve hicle has been delivered.
Ac tive Brake Assi stis una vailable or only
partially available during thete ach-in proc‐
ess. Setting
Active Brake Assi st
Re quirements:
R The ignition is switched on.
Multimedia sy stem:
4 © 5
Settings 5
Assistance
5 Avoid collision 5
Active Brake Assist #
Select the desired setting.
The setting is retained when the engine is
next star ted.
Deactivating Active Brake Assi st
% It is recommended that you alw ays lea ve
Ac tive Brake Assi stactivated. #
Select Off.
The dis tance warning function, the autono‐
mous braking function and the Evasive Steer‐
ing Assist are deactivated.
When the engine is next star ted, the medium
setting is automatically selected.
% IfAc tive Brake Assi stis deactivated, the
æ symbol appears inthest atus bar of the
multifunction displa y. Tr
af fic Sign Assist Fu
nction of Traf fic Sign Assist
Tr af fic Sign Assi stdetects traf fic signs wi th the
multifunction camera and compares this with
information in the digital navigation map. It
assists youby displaying de tected speed limits
and overtaking restrictions in the driver display
and in the head-up displa y.The sy stem can issue
a wa rning when youexc eed the maximum per‐
missible speed.
In some count ries, the sy stem can pr ovide you
with fur ther functions and can warnyou when
yo u are approaching pedestrian crossings or
when you are about todrive past stop signs or
re d lights unintentionall y.
The camera also de tects and ana lyses traf fic
signs with a restriction indicated byan additional
sign (e.g. when wet).
Tr af fic Sign Assi stonly visualises selected signs
in the driver displa y.Ac tual traf fic signs and
speed limits ha vepriority over traf fic signs and
speed limits shown in the driver displa y. Driving and pa
rking 247
R
If a loss of tyre pressure or a defective tyre
has been de tected and displ ayed.
The sy stem may be impaired or may not function
particularly in thefo llowing situations:
R Ifth ere is poor visibility, e.g. due toinsuf fi‐
cient illumination of thero ad, if there are
highly variable shade conditions or in rain,
sno w,fog or heavy spr ay.
R Ifth ere is glare, e.g. from oncoming traf fic,
th e sun or reflections.
R Ifth e windscreen in the area of the multi‐
function camera is dirty, or if the camera is
mis ted up, damaged or co vered.
R Ifth ere are no lane markings, or se veral
unclear lane markings are present for one
lane, e.g. around roadwor ks.
R Ifth e lane markings are worn, dark or cov‐
ered.
R Ifth e dis tance totheve hicle in front is too
short and thus the lane markings cann otbe
de tected. R
Ifth e lane markings change quickl y,e.g.
lanes branch off, cross one ano ther or
mer ge.
R Ifth e car riag ewa y is very nar row and wind‐
ing.
Obse rveth e no tes on driving sy stems and your
re sponsibility; you may otherwise failto recog‐
nise dangers (/ page 219).
Ac tivating/deactivating Active Lane Keeping
Assist
Multimedia sy stem:
4 © 5
Settings 5
Assistance
5 Avoid collision
5 Active Lane Keeping Assist #
Switch the function on or off.
Alternatively, Active Lane Keeping Assist can be
activated and deactivated in the Assis tance
menu.
% Afterst arting the engine, the settings are
count ry-specific. Setting
Active Lane Keeping Assist
Multimedia sy stem:
4 © 5
Settings 5
Assistance
5 Avoid collision
5 Active Lane Keeping Assist
Setting the sensitivity #
Select ´. #
Select Early,Med.orLate.
The last selec ted setting will be adop tedth e next
time the engine is star ted.
% The standard setting forth is function is
dependent on the count ry.
Ac tivating or deactivating assistance on dis‐
continuous lane markings #
Select Advanced support .
The la stselected setting will be adop tedth e next
time the engine is star ted.
% The standard setting forth is function is
dependent on the count ry. Driving and pa
rking 257
R
Pedestrians or animals approaching theve hi‐
cle from the side.
R Objects placed next totheve hicle.
Obs tacles on the sides are not shown in thefo l‐
lowing situations, forex ample:
R You park theve hicle and switch off the igni‐
tion.
R You open the doors.
Af terth e engine is restar ted, obs tacles must be
de tected again bydriving past them before a
new warning can be issued.
Also obser vethe sy stem limits of thefo llowing
sy stems:
R Reversing camera (/ page 260)
R 360° Camera (/ page 262)
Obser vethe information on vehicle sensors and
cameras; the sy stem otherwise cannot function
proper ly (/ page 220).
Ve hicles with trailer hitch: Parking Assist
PA RKTRONIC is deacti vatedfo rth ere ar zone
when you es tablish an elect rical connection
between your vehicle and a trailer. Problems with
Parking Assist PARKTRONIC
If th ePa rking Assist PARKTRONIC display lights
up redfo r appro ximately 3 seconds and then
goes out, and theé symbol appears in the
driver displa y,Pa rking Assist PARKTRONIC may
ha ve been deactivated due tosignal inter fer‐
ence. Start theve hicle again and check if Park‐
ing Assist PARKTRONIC is working at a dif fere nt
location.
If a warning tone also sounds, it may be due to
one of thefo llowing causes:
R The sensors are dirty: cleanthe sensors
and obser vethe no tes on care of vehicle
parts (/ page 356).
R Parking Assist PARKTRONIC has been
deactivated due toa malfunction: restart
th eve hicle. If the problem persists, consult a
qu alified specialist workshop. Ac
tivating/deactivating Parking Assist
PA RKTRONIC
* NO
TERisk of an accident from objects
at close range Pa
rking Assist PARKTRONIC may not de tect
cer tain objects at close range. #
When pa rking or manoeuvring theve hi‐
cle, pay particular attention toany
objects which are abo veor below the
sensors, e.g. flowe rpots or dr awbars.
The vehicle or other objects could oth‐
erwise be damaged. Re
quirements:
R The camera menu is open.
R Or: Active Parking Assist is active.
R Or: thePA RKTRONIC pop-up window
appears. #
Tap= inthe cent ral displa y.
If th e indicator lamp is lit, Parking Assist
PA RKTRONIC is active. If the indicator lamp is
not lit or theé symbol appears in the instru‐ 270
Driving and pa rking
ment clus
ter,Pa rking Assist PARKTRONIC is not
active.
% Parking Assist PARKTRONIC is automatical ly
activated when the engine is star ted.
Alternatively, Parking Assist PARKTRONIC can be
activated or deacti vated in thequ ick access
menu.
Setting thewa rning tones of Parking Assist
PA RKTRONIC
Multimedia sy stem:
4 © 5
Settings 5
Assistance
5 Parking
Setting thevo lume or pit chofthewa rning
to nes #
Set the desired le vel under Volume orTone
pitch.
Ac tivating/deactivating audio fadeout #
Activate or deacti vate Audio fadeout.
The volume of the cur rently pl aying media
source is reduced during a Parking Assist
PA RKTRONIC warning tone.
or #
Activate or deacti vate Audio fadeout in
trans. position R.
The volume of the cur rently pl aying media
source is reduced when reve rsege ar is
engaged.
Setting the time of thewa rnings #
Select Time of warning. #
Set the time forth ewa rning. Ac
tive Parking Assist Fu
nction of Active Parking Assist
Ac tive Parking Assist is an elect ronic pa rking
assis tance sy stem, which uses ultrasound with
th e assis tance of there ve rsing camera and 360°
Camera. When you are driving forw ards up to
appr oximately 35 km/h, the sy stem automati‐
cally measures parking spaces on bo thsides of
th eve hicle.
Ac tive Parking Assist of fers thefo llowing func‐
tions:
Ve hicles with reve rsing camera
R Parking in parking spaces parallel tothero ad R
Reversing into parking spaces perpendicular
to thero ad
Ve hicles with 360° Camera
R Parking in parking spaces parallel tothero ad
R Parking in parking spaces perpendicular to
th ero ad (optionally either forw ards or
re ve rse)
R Parking in parking spaces that can on ly be
de tected as su chdue tomarkings (for exam‐
ple at thero adside)
R Exiting a parking space parallel tothero ad
R Exiting a parking space perpendicular tothe
ro ad (optionally either left or right)
Ac tive Parking Assist is only an aid. It is not a
substitute foryo ur attention tothe sur roundings.
The responsibility for safe manoeuvring and
parking remains with you. Make sure that no
persons, animals or objects etc. are in the
manoeuvring range.
If Ac tive Parking Assist is available, theÇ
message appears in the driver displa y.When the
sy stem de tects pa rking spaces, Èappears.
The ar rows show on which side of thero ad Driving and parking
271
Please no
tethat you can on lyuse Remo te
Pa rking Assist if you ha veava lid driving
licence and are in a fit st ate todrive.
Re mo teParking Assist par ksyour vehicle while
yo u are outside of your vehicle. You can monitor
th e manoeuvring and parking procedure on your
mobile phone.
Wi th Remo teParking Assist, you can car ryout
all the parking procedures of Active Parking
Assist. You can also position theve hicle directly
in front of a garage or a driv eway entrance and
th en use Remo teParking Assist toenter or exit a
parking space.
Re mo teParking Assist changes gear, acceler‐
ates, brakes and steers theve hicle. While
Re mo teParking Assist is active, theve hicle is
loc ked.
Re mo teParking Assist is only an aid. It is not a
substitute foryo ur attention tothe sur roundings.
The responsibility for safe manoeuvring and
parking remains with you. In terrupt or term inate
th e parking procedure if necessar y.Make sure
th at no persons, animals or objects etc. are in th
e manoeuvring range. Ma kesure toalso pay
attention toother vehicles.
Sy stem limits
If th e sy stem de tects a malfunction or a sy stem
limit during the manoeuvring or parking proce‐
dure, the procedure will be cancelled:
R The vehicle is brought toast andstill.
R Transmission position jis selec ted and the
electric parking brake is applied automati‐
call y.
R The engine is switched off.
R The vehicle remains loc ked.
If th e parking manoeuvre is cancelled, a cor re‐
sponding message is displa yed on the mobile
phone.
Depending on the situation, you can then take
control of the procedure, manoeuvre theve hicle
back tothest arting position or manually take
control of theve hicle.
The sy stem limits of Active Parking Assist apply
(/ page 271). Cer
tain environmental conditions, such as snow‐
fa ll or heavy rain, may lead toa parking space
being measured inaccurately or toconnection
problems wi th the mobile phone. Only use
Re mo teParking Assist on le vel, high-grip ground.
During the parking procedure, you should not
st and more than appr ox. 3.0 maw ay from the
ve hicle. Atgrea ter dis tances, the procedure will
be inter rupted and a cor responding message will
be displa yed on the mobile phone. If you mo ve
closer totheve hicle, you will be able tocontinue
th e procedure.
Operating Remo teParking Assist
Requ irements:
Fo rth eRe mo teParking Assist function, you
re qu ire a mobile phone and the cur rent Remo te
Pa rking Assist App foryo ur vehicle type.
The following operating sy stems are suppor ted:
R Android™
R Apple ®
iOS 276
Driving and pa rking
Note
s onthe driver display &
WARNING Risk of accident due to a
driver display malfunction
If th e driver display has failed or malfunc‐
tioned, the function restrictions applying to
saf etyre leva nt sy stems are not visible.
The operating saf ety of your vehicle may be
impaired. #
Drive on carefull y. #
Have theve hicle checked immediately
at a qualified specialist workshop. If
th e operating saf ety of your vehicle is
impaired, park theve hicle immediately and
safel y.Con tact a qualified specialist workshop.
The driver display sho wsbasic information such
as speed, engine speed, fuel le vel and coolant
te mp erature.
Ad ditional functions available to you include the
fo llowing:
R Differe nt menus, for Assis tance and Naviga‐
tion R
Status displa ysforth e driver assis tance sys‐
te ms
R Display messa ges
R Indicator and warning lamps
R Information on Consumptionandrange
The menu contents and settings can be individu‐
al ly adjus ted and set. Note
s onthe 3D driver display
The 3D driver display enables a spatial represen‐
tat ion of the conte nt ofthe driver displa y.It is a
prerequisite that the driver be recorded bythe
driver camera.
Sy stem limits
The sy stem may be impaired or may not function
in thefo llowing situations:
R The driver camera is deactivated or is not
working.
R The driver is outside the de tection range of
th e driver camera. R
The operating conditions are not in place,
e.g. if the outside temp erature is too low or
to o high. Operating
the driver display &
WARNING Risk of di stra ction from infor‐
mation sy stems and communications
equipment
If yo u operate information and communica‐
tion equipment integrated in theve hicle
when driving, you will be distracted from the
traf fic situation. This could also cause youto
lose control of theve hicle. #
Only operate this equipment when the
traf fic situation permits. #
Ifyo u cannot be sure of this, stop the
ve hicle whilst paying attention toroad
and traf fic conditions and ope rate the
equipment with theve hicle stationar y. Obser
vethe legal requ irements forth e count ry
in which you are cur rently driving when operat‐
ing the driver displa y. Driver display
291