2021 MERCEDES-BENZ A-CLASS SALOON Owners Manual

R
A driving sa fety system inter venes, e.g. ESP ®
or Active Brake Assist.
R ESP ®
is deactivated.
R A loss of tyre pressure or a defective tyre is
de tected.
R You are driving with a trailer and the electrical
connection tothe trailer hitch has been cor-
re ctly es tablished.
A A ctiv ctiv ating/deactiv
ating/deactiv ating Blind Spo
ating Blind Spo t Assis
t Assist ort or
A
A ctiv
ctiv e Blind Spo
e Blind Spo t Assist
t Assist
Multimedia system:
4 © 5
Settings 5
Assistance #
Activate or deactivate Blind Spot Assist.
or #
Activate or deactivate Act. Blind Spot Assist .A
A
ctiv
ctiv e Lane K
e Lane K eeping Assist
eeping Assist F
F
unction of A
unction of A ctiv
ctive Lane K
e Lane K eeping Assist
eeping Assist
Ac tive Lane Keeping Assist monitors the area in
front of your vehicle bymeans of the multifunction
camera (/ page 214). It ser vesto protect you
against unintentionally leaving your lane. You will be
warned byvibration pulses in the steering
wheel and guided bya course-co rrecting brake
application back into your lane.
Ac tive Lane Keeping Assist is available in the
speed range between 60 km/h and 200 km/h.
Ac tive Lane Keeping Assist can neither reduce the
ri sk of an accident if youfa ilto adapt your driving
style nor override the la wsof ph ysics. It cannot
ta ke into account road, weather or tra1c condi-
tions. Active Lane Keeping Assist is only an aid.
Yo u are responsible for maintaining a safe dis-
ta nce totheve hicle in front, forve hicle speed, for
braking in good time and for st aying in lane.
The status of Active Lane Keeping Assist is dis-
pla yed in the on-board computer:
R Ã (gre en): Active Lane Keeping Assist is
active and operating.
R Ã (gre y): Active Lane Keeping Assist is
active but not operating.
R ·: Active Lane Keeping Assist is deactiva-
te d or there is a malfunction. If a lane-cor
recting brake application occurs, dis-
play 1appears in the Instrument Displa y.
The system does not app lythe brake if you acti-
va te the turn signal indicator.
V
V ehicles wit
ehicles wit h Dr
h Driving Assist
iving Assist ance P
ance Pack
ackag
age:
e: ifthe
system de tects an obs tacle, such as ano ther vehi-
cle in the adjacent lane, it will apply the brake
re ga rdless of the turn signal indicator.
Yo u are warned byvibrations in the steering wheel
in thefo llowing circumstances:
R Active Lane Keeping Assist de tects a lane
marking.
R A front wheel drives overth is lane marking. 246
246
Driving and parking

Conditions f
Conditions f
or a cour
or a course-corr
se-correcting br
ecting br ak
ake applica-
e applica-
tion (v
tion (v ehicles wit
ehicles wit hout Dr
hout Driving Assist
iving Assist ance P
ance Pack
ackag
age)
e)
Depending on the setting, a course-cor recting
brake application occurs in thefo llowing situa-
tions (/ page 248).
% The availability of this setting is dependent on
th e countr y.Ifth e function is activated in
countries in which this setting is no not
tav ailable,
a lane-cor recting brake application is initiated
in thefo llowing situations:
Lane markings weredetected on bo thsides of
th e lane. The front wheel drives over a contin-
uous lane marking.
Standard setting
R A lane marking and the edge of a /rm road
sur face weredetected. The front wheel drives
ove r a lane marking on the edge of the /rm
ro ad sur face.
R A lane marking and an oncoming vehicle were
de tected. The front wheel drives overth e lane
marking. Sensitive
setting
R All situations described under theStandard
setting.
R A continuous lane marking was de tected and
driven over with the front wheel.
% A brake application may be inter rupted at any
time if you steer slightly in the opposite direc-
tion.
Conditions f
Conditions f or a cour
or a course-corr
se-correcting br
ecting br ak
ake applica-
e applica-
tion (v
tion (v ehicles wit
ehicles wit h Dr
h Driving Assist
iving Assist ance P
ance Pack
ackag
age)
e)
Depending on the setting, a course-cor recting
brake application occurs in thefo llowing situa-
tions (/ page 248).
% The availability of this setting is dependent on
th e countr y.Ifth e function is activated in
countries in which this setting is no not
tav ailable,
a lane-cor recting brake application is initiated
in all situations described under Sensitive.
Standard setting
R A lane marking and an approaching vehicle, an
ove rtaking vehicle or vehicles driving parallel
to your vehicle weredetected in the adjacent lane. The front wheel drives
overth e lane
marking.
Sensitive setting
R The situations described under theStandard
setting.
R A continuous lane marking was de tected and
driven over with the front wheel.
% A brake application may be inter rupted at any
time if you steer slightly in the opposite direc-
tion.
Syst
Syst em limits
em limits
No lane-cor recting brake application occurs in the
fo llowing situations:
R You clear lyand actively steer, brake or accel-
erate.
R If a driving saf ety sy stem inter venes, such as
ESP ®
,Ac tive Brake Assist or Active Blind Spot
Assist.
R You ha veadop ted a sporty driving style with
high cornering speeds or high rates of acceler-
ation.
R When ESP ®
is deacti vated. Driving and parking
247
247

R
When driving with a trailer, the electrical con-
nection tothe trailer has been cor rectly es tab-
lished.
R If a loss of tyre pressure or a defective tyre is
de tected and displa yed.
If yo u deactivate theAc tive Lane Keeping Assist
wa rning and the lane markings cannot be clear ly
de tected, it is possible that no lane-cor recting
brake application take s place (/ page 248).
The system may be impaired or may not function
particular lyin thefo llowing situations:
R Ifth ere is poor visibility, e.g. due toinsu1cient
illumination of thero ad, highly variable shade
conditions, rain, sno w,fog or heavy spr ay.
R Ifth ere is glare, e.g. from oncoming tra1c, the
sun or re0ections.
R Ifth e windscreen in the area of the multifunc-
tion camera is dirty, or if the camera is misted
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 co v-
ered.
R Ifth e distance totheve hicle in front is too
short and thus the lane markings cannot be
de tected.
R Ifth e lane markings change quickl y,e.g. lanes
branch o., cross one ano ther or mer ge.
R Ifth e car riag ewa y isvery nar row and winding.
R V Vehicles wit
ehicles wit h Dr
h Driving Assist
iving Assist ance P
ance Pack
ackag
age:
e: if
th era dar sensors in there ar bumper are dirty
or co vered in snow and an obstacle is de tec-
te d in your lane, no lane-cor recting brake
application take s place.
A
A ctiv
ctiv ating/deactiv
ating/deactiv ating A
ating Activ
ctive Lane K
e Lane K eeping
eeping
Assist
Assist
Multimedia system:
4 © 5
Settings 5
Quick access
5 Active Lane Keeping Assist #
Activate or deactivate the function. Se Se
tting A
tting A ctiv
ctive Lane K
e Lane K eeping Assist
eeping Assist
Multimedia system:
4 © 5
Settings 5
Assistance
5 Active Lane Keeping Assist
Se
Se tting t
tting t he sensitivity
he sensitivity
% The availability of this function is dependent
on the countr y. #
Select Standard, SensitiveorOff.
A
A ctiv
ctiv ating or deactiv
ating or deactiv ating t
ating the hap
he hap tic w
tic war
arning
ning #
Select Warning .
Ac tivate or deactivate the function. F
F
unction of adap
unction of adap tiv
tive dam
e dam ping adjus
ping adjustment tment Suspension with adaptive damping adjustment
continuously adjusts thech aracteristics of the
suspension dampers tothe cur rent ope rating and
driving conditions.
The damping is set individually for each wheel and
is a.ected bythefo llowing factors:
R thero ad sur face conditions
R vehicle load 248 248
Driving and parking

R
the drive prog ram selected
R the driving style
The drive prog ram can be adjus ted using the
DY NAMIC SELECT switch. R
R
e
ev
ver
er sing came ra
sing camera F
F
unction of t
unction of t herev
he rever
ersing camera
sing camera
If yo u ha veactivated the function in the multime-
dia system (/ page 254),the image from the
re ve rsing camera is displa yed in the media display
when reve rsege ar is selected. Dynamic guide
lines show the path theve hicle will take with the
cur rent steering angle. This helps youto orient
yo urself and toavo id obstacles when reve rsing.
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 par k-
ing remains with you. Make sure that there are no
persons, animals or objects etc., in the manoeu-
vring area while manoeuvring and parking.
% You can open the co ver of there ve rsing cam-
era manually (/ page 254). The guide lines in
the media display show the dis-
ta nces toyour vehicle. The dis tances displa yed
only apply toroad le vel.
Depending on theve hicle equipment, you can
select from thefo llowing vie ws:
R Normal view
R Wide-angle view
R Trailer view
The area behind theve hicle is displ ayed as a mir-
ro r image, as in the inside rearview mir ror.
V
V ehicles wit
ehicles wit hout P
hout Par
arking Assis
king Assist P t PARK
ARK TR
TRONIC
ONIC
The following camera vie wsare available in the
multimedia system: Normal view
1 Yellow guide line, vehicle width (driven sur-
fa ce) depending on the cur rent steering angle
(dynamic)
2 Yellow guide line at a distance of appr ox-
imately 1.0 m from there ar area
3 Yellow lanes marking the course the tyres will
ta ke with the cur rent steering angle (dynamic)
4 Bumper
5 Red guide line at a distance of appr oximately
0.3 m from there ar area Driving and parking
249
249

Wi
de-angle view Tr
ailer view (vehicles with a trailer hitch)
1 Yellow guide line, locating aid 2
Red guide line at a distance of appr oximately
0.3 m from the ball head of the trailer hitch
3 Ball head of the trailer hitch
V
V ehicles wit
ehicles wit h P
h Par
arking Assis
king Assist P t PARK
ARK TR
TRONIC
ONIC
The following camera vie wsare available in the
multimedia system: Normal view
1 Yellow lanes marking the course the tyres will
ta ke with the cur rent steering angle (dynamic)
2 Yellow guide line, vehicle width (driven sur-
fa ce) depending on the cur rent steering angle
(dynamic) 3
Red guide line at a distance of appr oximately
0.3 m from there ar area
4 Yellow warning indicator of Parking Assist
PA RKTRONIC: obstacles at a distance
between app roximately 0.6 m and 1.0 m
5 Redwa rning display of Parking Assist
PA RKTRONIC: obstacles are very close
(appr oximately 0.3 m or less)
6 Orange warning display of Parking Assist
PA RKTRONIC: obstacles are a medium dis-
ta nce away (between appr oximately 0.3 m
and 0.6 m) Wi
de-angle view 250
250
Driving and parking

Tr
ailer view (vehicles with a trailer hitch)
1 Yellow guide line, locating aid
2 Red guide line at a distance of appr oximately
0.3 m from the ball head of the trailer hitch
3 Ball head of the trailer hitch
Syst
Syst em f
em f ailure
ailure
If th ere ve rsing camera is not operational, thefo l-
lowing display appears in the multimedia system. Syst
Syst
em limits
em limits
The reve rsing camera will not function or will only
partially function in thefo llowing situations:
R The boot lid is open.
R There is heavy rain, snow or fog.
R The light conditions are poo r,e.g. at night.
R Cameras, or vehicle components in which the
cameras are /tted, are damaged, dirty or co v-
ered. Obser vethe information on vehicle sen-
sors and cameras (/ page 214).
% Do not use there ve rsing camera in these
types of situations. You could otherwise injure
ot hers or collide with objects when parking
th eve hicle.
% The cont rast of the display may be impaired
by direct sunlight or by other light sources,
e.g. when driving out of a garage . In this case,
pay particular attention.
% Have the display repaired or replaced if, for
ex ample, pixel er rors considerably restrict its
use. 360° Came
ra
360° Camera F
F
unction of t
unction of t he 360° Camera
he 360° Camera
The 360° Camera is a system that consists of
fo ur cameras. The cameras co verth e immediate
ve hicle sur roundings. The system assists you
when you are parking or at exits with reduced visi-
bility, forex ample.
The vie wsofthe 360° Camera are alw aysav aila-
ble when driving forw ards up toa speed of
appr ox. 16 km/h and when reve rsing.
The 360° Camera is only an aid and may show a
distor ted view of obstacles, show them incor rectly
or not show them at all. It is not a substitute for
yo ur attention tothe sur roundings. The responsi-
bility 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 parking.
The system evaluates images from thefo llowing
cameras:
R Reversing camera
R Front camera
R Two side cameras in the outside mir rors Driving and parking
251 251

%
You can open the co ver of there ve rsing cam-
era manually (/ page 254).
V
V iew
iew s of t
s of t he 360° Camera
he 360° Camera
Yo u can select from di.erent vie ws:1
Wide-angle vie w,front
2 Top view with image from the front camera
3 Top view with images from the side cameras
in the outside mir rors
4 Wide-angle vie w,rear
5 Top view with image from there ve rsing cam-
era
6 Top view with trailer view (vehicles with a
trailer hitch) T
T op view
op view 1
Lane indicating thero ute theve hicle will take
at the cur rent steering wheel angle
2 Warning display of Parking Assist
PA RKTRONIC
3 Your vehicle from abo ve
The colour of the individual segments of warning
display 2is based on the distance tothe de tec-
te d obstacle:
R Y
Yello
ello w segments:
w segments: obstacles at a distance
between appr ox. 0.6 m and 1.0 m
R Or
Orang
ang e segments:
e segments: obstacles at a distance
between appro x. 0.3 m and 0.6 m R
R
Red segments:
ed segments: obstacles at a very short dis-
ta nce of app rox. 0.3 m or less
When Parking Assist PARKTRONIC is ope rational
and no object is de tected, the segments of the
wa rning display are shown in grey.
Guide lines
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) 252
252
Driving and parking

3
Red guide line at a distance of appr oximately
0.3 m from there ar area
4 Mark at a dis tance of app rox. 1.0 m
% When Active Parking Assist is active, lanes 1
are displa yed in green.
The guide lines in the media display show the
distances toyour vehicle. The dis tances app ly
to road le vel.
In trailer mode, the guide lines are shown at
th e le vel of the trailer hitch.
T
T r
railer vie
ailer vie w (v
w (vehicles wit
ehicles wit h a tr
h a trailer hitc
ailer hitc h)
h)
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 distance of appr oximately
0.3 m from the ball head of the trailer hitch
3 Ball head of the trailer hitch When
the electrical connection is established
between theve hicle and the trailer, the display
ch anges tothe side camera vie w.
This view supports manoeuvring procedures with
a trailer.
Side vie
Side vie w of t w of the mirr
he mirr or camer
or camer as
as
The sides of theve hicle can be seen in this vie w. 1
Guide line of extern al vehicle dimensions with
outside mir rors folded out
2 Marker of the wheel contact points
Syst
Syst em f
em f ailure
ailure
If th e system is not ready for operation, thefo l-
lowing message appears inthe media displa y: Driving and parking
253
253