
R
Red segments: obstacles at a very short
dis tance of appr ox. 0.3 m or less
When Parking Assist PARKTRONIC is operational
and no object is de tected, the segments of the
wa rning display are shown in gr ey.
% Ifth e entire sy stem fails, the segments of
th ewa rning display are shown in red. The
indicator lamp on thePA RKTRONIC but ton
lights up and theé symbol appears in
th e multifunction displa y.
If th e sy stem fails at there ar, the display of
th e segments changes as follo ws:
R The rear segments are shown in red
when reve rsing.
R The rear segments are hidden when driv‐
ing forw ards.
If Pa rking Assist PARKTRONIC is deacti vated,
th ewa rning display fades out (/ page 262). Guide lines
1
Yellow lane marking the course the tyres will
ta ke atthe cur rent steering wheel angle
(dynamic)
2 Yellow guide line, vehicle width (driven sur‐
fa ce) depending on the cur rent steering
wheel angle (dynamic)
3 Red guide line at a dis tance of appr oximately
0.3 m from there ar area
4 Mark at a dis tance of appr ox.1. 0 m
% When Active Parking Assist is active, lane
markings 1are displa yed in green. The guide lines in
the media display show
th e dis tances to yourvehicle. The dis tances
apply toroad le vel.
In trailer mode, the guide lines are shown at
th e le vel of the trailer hitch.
Tr ailer view (vehicles with a trailer hitch)
If yo u select trailer view and no trailer is coupled
to theve hicle, thefo llowing display appears: 1
Yellow guide line, locating aid
2 Red guide line at a dis tance of appr oximately
0.3 m tothe ball head of the trailer hitch
3 Ball head of the trailer hitch 272
Driving and pa rking

#
Where necessar y,select the parking direc‐
tion: forw ards or reve rse.
Ve hicle path 3is shown, depending on
selected parking space 4and the parking
direction. #
Confirm selected parking space 4.
% The turn signal indicator is switched on auto‐
matically when the parking procedure
begins. The turn signal indicator is switched
off automatically when you swit chto005B .
Yo u are responsible for selecting the turn signal
indicator in accordance with the traf fic condi‐
tions. If necessar y,select the turn signal indica‐
to r according ly. &
WARNING Risk of accident due tovehi‐
cle swinging out while parking or pulling
out of a parking space
While parking or exiting a parking space, the
ve hicle swings out and can drive onto areas
of the oncoming lane.
This could cause youto collide wi thobjects
or other road users. #
Pay attention toobjects and other road
users. #
Where necessar y,stop theve hicle or
cancel the parking procedure with
Ac tive Parking Assist. #
If,forex ample, thePlease engage reverse
gear message appears in the media display:
select the cor responding transmission posi‐
tion.
The vehicle drives into the selected parking
space.
On completion of the parking procedure, the
Parking Assist finished, take control of vehicle
display message appears. Further manoeuvring
may still be necessar y. #
After completion of the parking procedure,
safeguard theve hicle against rolling away.
When requ ired bylegal requirements or local
conditions: turn the wheels towa rdsth eke rb.
% You can stop theve hicle and change the
transmission position du ring the parking pro‐
cedure. The sy stem then calculates a new
ve hicle path. The parking procedure can th
en be continued. If no new vehicle path is
av ailable, the transmission position will be
ch anged again. If theve hicle has not yet
re ached the parking space, the parking pro‐
cedure will be cancelled, should a gear be
ch anged.
Exiting a pa rking space with Active Parking
Assist
Re quirements:
R The vehicle has been par ked with Active
Pa rking Assist.
Please no tethat you are responsible forth eve hi‐
cle and sur roundings during the entire parking
procedure. #
Start theve hicle. Driving and parking
277

#
Press button 1.
The media display sho wsthe view of Active
Pa rking Assist. #
Ifth eve hicle has been par ked at right angles
to the direction of tra vel: in area 2, select
direction of tra vel3, left orright.
% The vehicle path shown on the media display
may dif fer from the actual vehicle path. #
Confirm direction of exit3 todrive out of
th e parking space.
% The turn signal indicator is switched on auto‐
matically when theex iting procedure begins.
Yo u are responsible for selecting the turn signal
indicator in accordance with the traf fic condi‐
tions. If necessar y,select the turn signal indica‐
to r according ly. &
WARNING Risk of accident due tovehi‐
cle swinging out while parking or pulling
out of a parking space
While parking or exiting a parking space, the
ve hicle swings out and can drive onto areas
of the oncoming lane.
This could cause youto collide wi thobjects
or other road users. #
Pay attention toobjects and other road
users. #
Where necessar y,stop theve hicle or
cancel the parking procedure with
Ac tive Parking Assist. #
If,forex ample, thePlease engage forward
gear message appears in the media display:
select the cor responding transmission posi‐
tion.
The vehicle mo ves out of the parking space.
The turn signal indicator is switched off auto‐
maticall y.
Af terth eex iting procedure has been comple ted,
th eParking Assist finished, take control of vehi- 278
Driving and pa rking

pla
y.Yo u can ackn owledge the message and
ta ke a break where necessar y.Ifyo u do not take
a break and ATTENTION ASSIST continues to
de tect increasing lapses in concentration, you
will be warned again af ter a minimum of
15 minutes. Yo
u can ha vethefo llowing status information for
AT TENTION ASSIST displa yed in the assis tance
menu of the on-board computer:
R The length of the journey since the last
break.
R The attention le vel de term ined byATTENTION
ASSIS T: -
the fuller the circle, the higher the atten‐
tional le vel de term ined
- asyour attention wanes, the circle in the
centre of the display becomes smaller
If AT TENTION ASSIST is unable tocalculate the
attention le vel and cannot issue a warning, the
System suspended messageappears.
If a warning is given in the Instrument Displa y,
th e multimedia sy stem of fers to sear chfor a rest
area. You can select a rest area and start naviga‐
tion tothis rest area. This function can be activa‐
te d and deactivated in the multimedia sy stem.
If AT TENTION ASSIST is deactivated, theÛ
symbol appears in the assis tance graphic in the
Instrument Display when the engine is running.
AT TENTION ASSIST is activated automatically
when the engine is re-sta rted. The last selected
sensitivity le velre mains stored.
Sy stem limits
AT TENTION ASSIST is active in the 60 km/h to
200 km/h speed range. The functionality of
ATTENTION ASSIST is
re stricted, and warnings may be dela yed or not
occur at all in thefo llowing situations:
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 time has been set incor rectly.
R In acti vedriving situations, if youch ange
lanes and vary your speed frequentl y.
The ATTENTION ASSIST tiredness or alertness
assessment is dele ted and restar ted when con‐
tinuing 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. changing drivers or taking
a break). Driving and pa
rking 281

%
Ve
hicles with a standard Instrument Dis‐
pla y:a+ symbol next toa traf fic sign in the
Instrument Display indicates that additional
traf fic signs ha vebeen de tected. These can
also be displ ayed in the media display and
optionally in the head-up displa y.
If Traf fic Sign Assi stcannot de term ine the cur‐
re nt maximum pe rmissible speed (e.g. due to
missing signs), thefo llowing display appears in
th e Instrument Display: This is displa
yed continuously if theve hicle is in
a country where Traf fic Sign Assi stis not sup‐
por ted. Traf fic Sign Assi stis not available in all
countries.
% Also obse rveth e information on display mes‐
sages in Traf fic Sign Assi st (/ page 632). Wa
rning when app roaching pedestrian cross‐
ings (vehicles with Driving AssistancePack‐
age)
The sy stem can warnyou if you approach a
pedestrian crossing with your vehicle. A mes‐
sage appears inthe instrument clus ter. The
warning occurs if appropriate traf fic signs or
ro ad markings are recognised and pedestrians
are present in the danger zone. Sy
stem limits
The sy stem may be impaired or may not function
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,
di re ct sunlight 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 e tra ffic signs are hard todetect, e.g. due
to dirt or sno w,or because they are co vered
or due toinsuf ficient lighting.
R Ifth e information in the navigation sy stem's
digital map is incor rect or out-of-da te.
R Ifth e signs are ambiguous, e.g. tra ffic signs
on con stru ction sites or in adjacent lanes.
R Ifyo u turn sharpl y,when passing traf fic signs
outside the camera's field of vision.
Setting Traf fic Sign Assist
Requ irements: Driving and parking
285

#
Alw ays pay careful attention tothe traf‐
fi c situation and maintain a safe dis‐
ta nce at the side of theve hicle. Blind Spot Assist and
Active Blind Spot Assi st
are on lyaids. They may failto detect some vehi‐
cles and are no substitute for attentive driving.
Alw ays ensure that there is suf ficient di stance to
th e side forot her road users and obs tacles.
Exit warning
The exitwa rning is an additional function of
Blind Spot Assist and can warnvehicle occu‐
pants about approaching vehicles when leaving
th eve hicle when stationar y. &
WARNING Risk of accident despi teexit
wa rning
The exitwa rning reacts nei ther tostationary
objects nor tovehicles approaching you at a
great lydif fere nt speed.
As a result, theex itwa rning cannot warn
drivers in these situations. #
Alw ays pay particular attention tothe
traf fic situation when opening the doors and make sure
there is suf ficient clear‐
ance. If
th ere is a vehicle in the monitoring range, this
is indicated in the outside mir ror.If a vehicle
occupant opens the door on the side with the
wa rning, a warning tone sounds and thewa rning
lamp in the outside mir rorst arts toflash.
This additional function is on lyavailable when
Blind Spot Assist is activated and up toa maxi‐
mum of thre e minutes af terth e ignition has
been switched off. The exitwa rning is no longer
av ailable once thewa rning lamp in the outside
mir rorflashes thre e times.
The exitwa rning is only an aid and not a substi‐
tute forth e attention of vehicle occupants. The
re sponsibility for opening and closing the doors
and for leaving theve hicle remains with theve hi‐
cle occupants.
Sy stem limits
Blind Spot Assist and Active Blind Spot Assi st
may be limi ted in thefo llowing situations:
R ifth ere is dirt on the sensors or the sensors
are obscured R
in poor visibility, e.g. due tofog, heavy rain or
snow
R ifth ere are nar row vehicles, e.g. bicycles or
mo torbikes
R ifth ero ad has very wide or nar rowlanes
R ifve hicles are not driving in the middle of
th eir lane
Wa rnings may be issued in er ror when driving
close tocrash ba rriers or similar solid lane bor‐
ders. Alw ays make sure that there is suf ficient
di st ance tothe side forot her traf fic or obs ta‐
cles.
Wa rnings may be inter rupte d when driving along‐
side long vehicles, forex ample lor ries, for a pro‐
longed time.
Blind Spot Assist is not operational when reve rse
ge ar is engaged.
Blind Spot Assist is not operational when a
trailer is coupled totheve hicle and the electrical
connection has been cor rectly es tablished. Driving and parking
287

may be inter
rupte d at any time if yousteer
slightly in the opposite direction or accelera te.
Sy stem limits
Either a course-cor recting brake application
appropria teto the driving situation, or none at
all, may occur in thefo llowing situations:
R Vehicles or obs tacles, e.g. crash ba rriers, are
located on bo thsides of your vehicle.
R Ave hicle approaches too closely on the side.
R You ha veadop ted a sporty driving style with
high cornering speeds.
R You brake or accelerate significantl y.
R A driving sa fety sy stem inter venes, e.g. ESP ®
or Active Brake Assi st.
R ESP ®
is deacti vated.
R A loss of tyre pressure or a defective tyre is
de tected.
R You are driving with a trailer and the electri‐
cal connection tothe trailer hitch has been
cor rectly es tablished. Ac
tivating/deactivating Blind Spot Assi stor
Ac tive Blind Spot Assi st
Multimedia sy stem:
4 © 5
Settings 5
Assistance #
Activate or deacti vate Blind Spot Assist .
or #
Activate or deacti vate Act. Blind Spot Assist .
% Depending on theve hicle's equipment, Blind
Spot Assist or Active Blind Spot Assi stis
av ailable. Ac
tive Lane Keeping Assist Fu
nction of Active Lane Keeping Assist Ac
tive Lane Keeping Assist monitors the area in
front of your vehicle bymeans of multifunction
camera 1. It ser vesto protect you against unin‐
te ntional lyleaving your lane. You will be warned
by vibration pulses in thesteering wheel and gui‐ Driving and parking
289

ded
bya course-cor recting brake application
ba ck into your lane.
Yo u are warned byvibration pulses in thesteer‐
ing wheel in thefo llowing circums tances:
R Active Lane Keeping Assist de tects a lane
marking.
R A front wheel drives overth is lane marking.
Yo u will also be guided back into your lane by
means of a course-cor recting brake application
if th efo llowing conditions are me t:
R Active Lane Keeping Assist de tects lane
markings on bo thedges of the lane.
R A front wheel drives over a solid lane mark‐
ing.
Yo u can activate or deactivate theAc tive Lane
Ke eping Assist warning.
The status of Active Lane Keeping Assist is dis‐
pla yed in the on-board computer:
R 00B0 (green): Active Lane Keeping Assist is
activated and operating.
R 00B0 (grey):Ac tive Lane Keeping Assist is
activated, but not operating. R
·: Active Lane Keeping Assist is deactiva‐
te d or there is a malfunction.
Ac tive Lane Keeping Assist can neither reduce
th erisk of an accident if youfa ilto adapt your
driving style nor override the la wsof ph ysics. It
cannot take into account road, weather or traf fic
conditions. Active Lane Keeping Assist is only an
aid. You are responsible for maintaining a safe
dis tance totheve hicle in front, forve hicle
speed, for braking in good time and forst ay ing
in lane.
Ac tive Lane Keeping Assist can bring theve hicle
back into the lane with a lane-cor recting brake
application. In the case of a broken lane marking
being de tected, a brake application will only be
made if a vehicle has been de tected in the adja‐
cent lane. Oncoming tra ffic can be de tected.
Ve hicles with Driving Assistance Package or
Driving Assistance Plus Package: overtaking
ve hicles and vehicles in adjacent lanes can also
be de tected.
Ve hicles without Driving Assistance Pack‐
age or Driving Assistance Plus Package: a
lane-cor recting brake application also takes place when, in addition
toa broken lane mark‐
ing, the edge of a firm road sur face is de tected
(e.g. central reser vation).
Ac tive Lane Keeping Assist is available in the
speed range between 60 km/h and 200 km/h. If a lane-co
rrecting brake application occurs, dis‐
play 1appears in the multifunction displa y.
Sensitivity of Active Lane Keeping Assist
% The availability of thefo llowing function is
countr y-dependent. 290
Driving and parking