Ac
tive Traf fic Jam Assi stactivates automatically
when all of thefo llowing conditions are me t:
R You are in a traf fic jam on a mo torw ay or
high-speed major road.
R Active Dis tance Assi stDISTRONIC is acti va‐
te d and active (/ page 232).
R Active Steering Assist is activated and active
(/ page 239).
R You are tr avelling no fasterthan 60 km/h.
When Active Traf fic Jam Assi stis active the¬
st atus display appears in the driver displa y.
Sy stem limits
The sy stem limitations of Active Dis tance Assi st
DISTRONIC and Active Steering Assist apply to
Ac tive Traf fic Jam Assi st (/ page 237). Ac
tive Steering Assist Fu
nction of Active Steering Assist
Ac tive Steering Assist is only available up to a
speed of 210 km/h. The sy stem helps youto
st ay inthe cent reofthe lane bymeans of mod‐
erate steering inter ventions. Depending on thespeed driven,
Active Steering Assist uses the
ve hicles ahead and lane markings as a refer‐
ence.
% Depending on the count ry, in the lo wer
speed range Active Steering Assist can use
th e sur rounding traf fic as a refere nce. If nec‐
essar y,Ac tive Steering Assist can then also
pr ov ide assis tance when driving outside the
centre of the lane.
If th e de tection of lane markings and vehicles
ahead is impaired, Active Steering Assist
switches topassive mode. The sy stem pr ovides
no support in this case.
Pe rm anent status display in the driver dis‐
play
Ø Grey:acti vated and passive
Ø Green: activated and active
Ø Red,flashing: prompttothe driver to
actively con firm or transition from active
to passive status, sy stem limit de tected
% During the transition from active topassive
st atus, theØ symbol is shown as
enlar ged and flashing. Once the sy stem is passive,
theØ symbol is shown as gr eyin
th e driver displa y.
Contact de tection
The driver is requiredtokeep their hands on the
st eering wheel at all times and be able tointer‐
ve ne at any time tocor rect the course of the
ve hicle and keep it in lane. The driver must
ex pect a change from active topassive mode or
vice versa at any time. If
th e sy stem de tects that the driver has not
st eered theve hicle for a considerable period of
time or has remo vedth eir hands from thesteer‐
ing wheel, an optical warning is given firs t. Dis‐
pl ay messa ge1 appears in the driver displa y.If Driving and parking
237
th
e driver still does not steer theve hicle, or
gives no confirmation tothe sy stem, a warning
to ne sounds in addition tothe visual warning
message.
If th e driver does not react tothis wa rning for a
considerable period, an emergency stop is initi‐
ated (/ page 239).
The warning is not issued or is stopped as soon
as the sy stem de tects that the driver has
to uched thesteering wheel.
To uch de tection may be limited or inoperati vein
th efo llowing situations:
R The driver is wearing glov es.
R There is a steering wheel co ver on thesteer‐
ing wheel.
If Ac tive Steering Assist de tects that a sy stem
limit has been reached, a visual warning is
issued and a warning tone sounds.
Obser vethe no tes on driving sy stems and your
re sponsibility; you may otherwise failto recog‐
nise dangers (/ page 219). Sy
stem limits
Ac tive Steering Assist has a limited steering tor‐
qu efo r lateral guidance. In some cases, the
st eering inter vention is not su fficient tokeep the
ve hicle in the lane.
The sy stem may be impaired or may not function
in thefo llowing ins tances:
R The reis poor visibilit y,e.g. due tosno w,rain,
fo g, heavy spr ay,greatly varying light condi‐
tions or strong shado wsonthe car riag ewa y.
R There is glare, e.g. from oncoming traf fic,
di re ct sunlight or reflections.
R Insuf ficient road illumination.
R The windsc reen is dirty, mis ted up, damaged
or co vered in the vicinity of the camera, e.g.
by ast icke r.
R No, or se veral, unclear lane markings are
present for one lane, or the markings change
qu ickl y,forex ample, in a con stru ction area
or junctions.
R The lane markings are wornaw ay, dark or
co vered up, e.g. bydirt or sno w. R
Ifth e dis tance totheve hicle in front is too
short and thus the lane markings cann otbe
de tected.
R The road is nar rowand winding.
R There are obs tacles on the lane or projecting
out into the lane, such as object mar kers.
R If transport equipment, forex ample a trailer
or bicycle rack , is attached tothe trailer
hitch and the electrical connection has been
cor rectly es tablished.
The sy stem does not pr ovide assis tance in the
fo llowing conditions:
R Onvery tight bends and when turning.
R When crossing junctions.
R Atroundabouts or tollst ations.
R When actively changing lane without swit ch‐
ing on the turn signal indicator.
R When the tyre pressure is too lo w. 238
Driving and parking
&
WARNING Risk of accident if Active
St eering Assist unexpectedly stops func‐
tioning
If th e sy stem limits of Active Steering Assist
are reached there is no guarantee that the
sy stem will remain active or will keep the
ve hicle in lane. #
Alw ayske ep your hands on thesteering
wheel and obser vethe tra ffic carefull y. #
Alw aysst eer theve hicle paying atten‐
tion totraf fic conditions. &
WARNING Risk of accident if Active
St eering Assist unexpectedly inter venes
The de tection of lane markings and objects
may malfunction and cause unexpected
st eering inter ventions. #
Steer according totraf fic conditions. Ac
tivating/deactivating Active Steering
Assist
Re quirements:
R ESP ®
is activated, but is not inter vening.
R Active Dis tance Assi stDISTRONIC is acti va‐
te d.
Multimedia sy stem:
4 © 5
Settings 5
Assistance
5 Driving #
Select ØAct. Steering Asst . Fu
nction of Active Eme rgency Stop Assist Ac
tive Emergency Stop Assist uses touch sen‐
sors tomonitor whe ther the driver holds the
st eering wheel and initiates an emer gency stop if
necessar y.
If Ac tive Steering Assist is deactivated, the
accelerator and brake pedal are monitored as
we ll as thesteering wheel. A warning is issued
when thesteering wheel is not being held or
when a pedal is not depressed, and theve hicle
is in danger of leaving the lane. If
th e sy stem de tects that the driver has not
st eered theve hicle for a considerable period of
time or has remo vedth eir hands from thesteer‐
ing wheel, visual warning 1is issued. If the
driver still does not steer theve hicle, or gives no
confirmation tothe sy stem, a warning tone
sounds in addition tothe visual warning mes‐
sage.
Also obser vethe instructions on the conta ct
de tection of Active Steering Assist
(/ page 237). Driving and parking
239
play appears along with gr
eyarrow s in the driver
displa y.
If no vehicle or obs tacle is de tected in the adja‐
cent lane and a lane change is permit ted, the
lane change begins af terth e driver has indicated
brief ly. The lane change is shown tothe driver
with a flashing greenarro w next tothe±
st eering wheel symbol. Green ar row 1 is dis‐
pla yed in the appropriate adjacent lane in the
Assistance menu inthe driver displa y.The Lane
change to the left message,forex ample, also
appears.
Ac tive Lange Change Assi stcan be cancelled in
va rious situations, including thefo llowing:
R Change in the sur rounding conditions (e.g.
de tected obs tacle).
R The driver remo vesth eir hands from the
st eering wheel.
R The driver steers with too much forc e or in
th e opposite direction.
R The driver mo vesth e turn signal indicator in
th e opposite direction. R
Active Dis tance Assi stDISTRONIC or Active
St eering Assist is deactivated.
R The vehicle cannot make the lane change as
planned.
Cancellation of Active Lane Change Assi stis dis‐
pla yed as follo ws:
R The ar row in the selected direction of tr avel
turns red.
R A cor responding message appears onthe
driver displa y.
R In cer tain circums tances a warning tone
sounds. &
WARNING Risk of accident when chang‐
ing lane toan occupied adjacent lane
Lane Chan geAssi stcannot al ways clear ly
de tect if the adjacent lane is free.
The lane change might be initiated although
th e adjacent lane is not free. #
Before changing lanes, make sure that
th e neighbouring lane is free and there
is no danger to otherroad users. #
Monitor the lane change. &
WARNING Risk of accident if Lane
Change Assi stunexpectedly stops func‐
tioning
If th e sy stem limitations for Lane Change
Assist ha vebeen reached, there is no guar‐
antee that the sy stem will remain active.
Lane Change Assist cannot then assist you
by applying steering torque. #
Alw ays monitor the lane change and
ke ep your hands on thesteering wheel.
Obser vethe tra ffic conditions and steer
and/or brake if necessar y. Sy
stem limits
The sy stem limitations of Active Steering Assist
apply toActive Lane Change Assi st
( / page 237).
The sy stem may also be impaired or may not
function in thefo llowing situations:
R The sensors are damaged, co vered or dirty
(/ page 220). 242
Driving and pa rking
R
ESP ®
is deacti vated.
R A loss of tyre pressure or a defective tyre is
de tected.
R Transport equipment, forex ample a trailer or
bicycle rack , is attached tothe trailer hitch
and the electrical connection has been cor‐
re ctly es tablished.
Ac tivating/deactivating Active Blind Spot
Assi st
Multimedia sy stem:
4 © 5
Settings 5
Assistance
5 Avoid collision 5
Active Blind Spot Assist #
Select Active Blind Spot Assist. #
Select OnorOff. 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 the multifunc‐
tion camera (/ page 220) and can warnyou
before you lea veyour lane unin tentionally. The
sy stem can guide you back into your lane th
ro ugh a course-co rrecting steering inter ven‐
tion and additional lywa rnsyo u with vibration
pulses in thesteering wheel. Active Lane Keep‐
ing Assist is available in the speed range
between 60 km/h and 200 km/h.
The sy stem can inter vene in thefo llowing situa‐
tions:
R Active Lane Keeping Assist de tects a lane
marking.
R One of your front wheels goes over a lane
marking.
If yo u activate the turn signal indicator, a steer‐
ing inter vention does not occur on the cor re‐
sponding side.
If th e sy stem de tects an obs tacle, su chas
ano ther vehicle in the adjacent lane, a steering
inter vention occu rsrega rdless of the turn signal
indicator. If you lea vethe lane without using the
turn signal indica tor,but an obs tacle is de tected
in your lane, a steering inter vention does not
occu r. Displ
ay1 will appear in the driver display and a
wa rning tone will sound in thefo llowing situa‐
tions:
R Asteering inter vention byActive Lane Keep‐
ing Assist lasts longer than appr oximately ten
seconds.
R The sy stem car ries out two or more steering
inter ventions wi thin appr oximately three
minutes without any steering inter vention
from the driver.
In theAc tive Lane Keeping Assist settings, you
can set the sensitivity of the sy stem and set the
le ve l of support. Additionally, you can set
whe ther the sy stem should react todiscontinu‐ Driving and parking
255
ous lane markings or only continuous lane mark‐
ings (/
page 257).
St atus displa ysforAc tive Lane Keeping
Assist
ï White:Ac tive Lane Keeping Assist is
deactivated.
ï Yello w: there is a malfunction. Please
also obser vethe display messages.
ð Grey:Ac tive Lane Keeping Assist is acti‐
va ted, but not operating.
ð Green: Active Lane Keeping Assist is
activated and operating. If the sy stem is
operational on only one side, the lane
marking is shown in green on the cor re‐
sponding side.
ð Red:Active Lane Keeping Assist has gui‐
ded you back into your lane with a
course-co rrecting steering inter vention.
The status display will flash if there is
also a haptic warning in thesteering
wheel. The lane marking is shown in red
only on the side for which there is a
wa rning. Ve
hicles without Driving Assistance
Pa ckage: if bothlane markings are
simultaneously shown in red in thest atus
displa y,Ac tive Lane Keeping Assist has
initiated an emer gency stop
(/ page 239).
Ac tive Lane Change Assi stdispl ayinthe
"Assistance" menu If
th e front wheel of theve hicle drives over a
de tected lane marking, this will be highligh ted
re d in theAssistance menu inthe driver's dis‐
pla y. %
Vehicles with active ambient lighting: if
Warning assistance is activated,theAc tive
Lane Keeping Assist warning is also accom‐
panied byambient lighting (/ page162).
Sy stem limits
In thefo llowing situations, no lane-cor recting
st eering inter vention occu rsbut rath er a warning
in thesteering wheel, depending on the situa‐
tion:
R You clear lyand actively steer, brake or accel‐
erate.
R If a driving saf ety sy stem inter venes, su chas
ESP ®
,Ac tive Brake Assi stor Active Blind
Spot Assi st.
R You ha veadop ted a sporty driving style with
high cornering speeds or high rates of accel‐
eration.
R When ESP ®
is deactivated.
R If transport equipment, forex ample a trailer
or bicycle rack , is attached tothe trailer
hitch and the electrical connection has been
cor rectly es tablished. 256
Driving and parking
%
Inthe Sport drive program, only the normal
ve hicle le vel is possible when the trailer
soc ket is contacted (trailer/bicycle rack ). Re
versing camera Fu
nction of there ve rsing camera
The reve rsing camera monitors the area behind
yo ur vehicle. If this function is activated
(/ page 267), the image from there ve rsing
camera is automatically displa yed in the cent ral
display when reve rsege ar is selec ted.
The reve rsing camera 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 there
are no persons, animals or objects etc., in the
manoeuvring area while manoeuvring and park‐
ing.
% The area behind theve hicle is displa yed as a
mir ror image, as in the inside rearview mir‐
ro r. Camera views
menu (top view)
1 Menu Parking Assist
2 Reversing camera with top view
3 Wide-angle view
4 Trailer view
5 Toactivate/deactivate Parking Assist
PA RKTRONIC (/ page270) 6
Warning display of Parking Assist
PA RKTRONIC (/ page 267)
7 Guide lines at a dis tance of appr oximately
0.5 m, 1.0 m, 1.5 m and 3.0 m from there ar
area
8 Path marking the course the tyres will take
with the cur rent steering wheel angle
(dynamic)
9 Driven sur face depending on the cur rent
st eering wheel angle (dynamic)
A Guide line at a dis tance of appr oximately
0.3 m from there ar area
% When Active Parking Assist is active, lane
markings 8are displa yed in green
(/ page 271). 260
Driving and pa rking
7
Toactivate/deactivate Parking Assist
PA RKTRONIC (/ page270)
8 Toset the GPS activation point
(/ page 267)
9 Toswitch between standard and wide-angle
view
A Toswitch between standard and trailer view
% In all vie ws,th ePa rking Assist PARKTRONIC
wa rning display is shown (/ page 267).Fu
nction of the guide lines 1
Guide lines at a dis tance of appr oximately
0.5 m, 1.0 m, 1.5 m and 3.0 m from there ar
area
2 Path marking the course the tyres will take
with the cur rent steering wheel angle
(dynamic)
3 Driven sur face depending on the cur rent
st eering wheel angle (dynamic)
4 Guide line at a dis tance of appr oximately
0.3 m from there ar area %
When Active Parking Assist is active, lanes
and guide lines are displa yed in green
ins tead of yellow (/ page271).
To p view with image from the front or reve rs‐
ing camera
If th is function is activated, the image from the
re ve rsing camera is automatically displa yed in
th e cent ral display when reve rsege ar is selec ted
( / page 267). 1
Warning display of Parking Assist
PA RKTRONIC (/ page 267)
2 Your vehicle from abo ve
3 Lane indicating thero ute theve hicle will
ta ke atthe cur rent steering wheel angle Driving and parking
263