2022 MERCEDES-BENZ A-CLASS SALOON Owners Manual

=
V ariable limiter
Further information about Active Distance
Assist DISTRONIC: ( page 231).
Displaying detected tr
aPc signs in the media dis-
play 
Select Display in head unit .
Switch the function on or oM.
Setting the type of warning 
Select Visual & audible , Visual or Off.
Setting the warning threshold
This v
alue determines the speed at which a warn-
ing is issued when exceeded. 
Select Warning threshold. 
Set the desired speed. Blind Spot Assist and Active Blind Spot Assist with
e
xit warning Function of Blind Spot Assist and Active Blind
Spo
t Assist with exit warning
Blind Spot Assist and Active Blind Spot Assist use
two lateral, rear-facing radar sensors to monitor the area up to 40 m behind and 3 m next to your
v
ehicle.
If a vehicle is detected at speeds above approx-
imately 12 km/h and this vehicle subsequently
enters the monitoring range directly next to your
vehicle, the warning lamp in the outside mirror
lights up red.
Permanent status display in the instrument clus-
ter:
= ¸ (grey): system is activated but inopera-
tive
= ¸ (green): system is activated and opera-
tional
If a vehicle is detected close to your vehicle and
you switch on the turn signal indicator in the cor-
responding direction, a double warning tone
sounds and the red warning lamp in the outside
mirror Oashes. If the turn signal indicator remains
switched on, all other detected vehicles are indi-
cated only by the Oashing of the red warning
lamp.
If you overtake a vehicle quickly, no warning is
given. &
WARNING Risk of accident despit e Active
Blind Spot Assist
Active Blind Spot Assist does not react to the
f
ollowing:
= if you overtake a vehicle too closely so that
it is in the blind spot area
= if vehicles travelling at a much faster
speed approach and then overtake
Active Blind Spot Assist may not give warnings
or intervene in such situations. 
Always pay careful attention to the tr
aPc
situation and maintain a safe distance at
the side of the vehicle. Observe the notes on driving systems and your
r
esponsibility; you may otherwise fail to recognise
dangers ( page 216).
Exit warning
The exit warning is an additional function of Blind
Spot Assist and can warn vehicle occupants about
approaching vehicles when leaving the vehicle
when stationary. 246
Driving and parking

&
WARNING Risk of accident despit e exit
warning
The exit warning neither reacts to stationary
objects nor t
o persons or road users
approaching you at a greatly diMering speed.
The exit warning cannot warn drivers in these
situations. 
Always pay particular attention to the
tr
aPc situation when opening the doors
and make sure there is suPcient clear-
ance. If there is a vehicle in the monitoring range, this is
indicat

ed in the outside mirror. If a vehicle occu-
pant opens the door on the side with the warning,
a warning tone sounds and the warning lamp in
the outside mirror starts to Oash.
This additional function is only available when
Blind Spot Assist is active. When the exit warning
is activated, it can warn vehicle occupants for up
to three minutes aser switching the vehicle oM.
The exit warning is no longer available once the
warning lamp in the outside mirror Oashes three
times. The exit warning is only an aid and not a substi-
tut

e for the attention of vehicle occupants. The
responsibility for opening and closing the doors
and for leaving the vehicle remains with the vehi-
cle occupants.
System limits
Blind Spot Assist and Active Blind Spot Assist may
be limited in the following situations, in particular:
= if there is dirt on the sensors or the sensors
are obscured
= in poor visibility, e.g. due to fog, heavy rain or
snow
= if there are narrow vehicles, e.g. bicycles or
motorbikes
= if the road has very wide or narrow lanes
= if vehicles are not driving in the middle of their
lane
Warnings may be issued in error when driving
close to crash barriers or similar continuous lane
borders. Always make sure that there is suPcient
distance to the side for other traPc or obstacles. Warnings may be interrupted when driving along-
side long v
ehicles, for example lorries, for a pro-
longed time.
Blind Spot Assist is not operational when reverse
gear is engaged.
Blind Spot Assist and the exit warning are not
operational when a trailer is coupled to the vehi-
cle and the electrical connection has been cor-
rectly established.
The exit warning may be limited in the following
situations:
= when the sensors are covered by adjacent
vehicles in narrow parking spaces
= when people approach the vehicle
= in the event of stationary or slowly moving
objects
Function of brake application (Active Blind Spot
Assist)
If Active Blind Spot Assist detects a risk of a side
impact in the monitoring range, a course-correct-
ing brake application is carried out. This is
designed to help you avoid a collision. Driving and parking
247

The course-correcting brake application is availa-
ble in t he speed range between approximately
30 km/h and 200 km/h. &
WARNING Risk of accident despit
e brake
application of Active Blind Spot Assist
A course-correcting brake application cannot
alw
ays prevent a collision. 
Always steer, brake or accelerate your-
self, especiall
y if Active Blind Spot Assist
warns you or makes a course-correcting
brake application. 
Always maintain a safe distance at the
sides. If a course-correcting brake application occurs,
t
he red warning lamp Oashes in the outside mirror
and a warning tone sounds. In addition, display
1 indicating the danger of a side collision
appears in the Instrument Display.
In rare cases, the system may make an inappro-
priate brake application. This brake application
may be interrupted at any time if you steer slightly
in the opposite direction or accelerate.
System limits
Note the system limitations of Active Blind Spot
Assist; you may otherwise not recognise the dan-
gers (  page 246).
Either a course-correcting brake application
appropriate to the driving situation, or none at all,
may occur in the following situations:
= Vehicles or obstacles, e.g. crash barriers, are
located on both sides of your vehicle.
= A vehicle approaches too closely on the side.
= You have adopted a sporty driving style with
high cornering speeds.
= You brake or accelerate signiNcantly. =
A dr iving safety system intervenes, e.g. ESP n
or Active Brake Assist.
= ESP n
is deactivated.
= A loss of tyre pressure or a defective tyre is
detected.
= You are driving with a trailer and the electrical
connection to the trailer hitch has been cor-
rectly established.
Activating/deactivating Blind Spot Assist or
Active Blind Spot Assist
Multimedia system: 4 © 5
Settings 5
Assistance 
Activate or deactivate Blind Spot Assist.
or 
Activate or deactivate Act. Blind Spot Assist. Active Lane Keeping Assist
Function of Active Lane Keeping Assist
A

ctive Lane Keeping Assist monitors the area in
front of your vehicle by means of the multifunction
camera (  page 216). It serves to protect you
against unintentionally leaving your lane. You will 248
Driving and parking

be warned by vibration pulses in the steering
wheel and guided b
y a course-correcting brake
application back into your lane.
Active Lane Keeping Assist is available in the
speed range between 60 km/h and 200 km/h.
Active Lane Keeping Assist can neither reduce the
risk of an accident if you fail to adapt your driving
style nor override the laws of physics. It cannot
take into account road, weather or traPc condi-
tions. Active Lane Keeping Assist is only an aid.
You are responsible for maintaining a safe dis-
tance to the vehicle in front, for vehicle speed, for
braking in good time and for staying in lane.
The status of Active Lane Keeping Assist is dis-
played in the on-board computer:
=

Sensitive setting
= All situations described under the Standard
setting.
= A continuous lane marking was detected and
driven over with the front wheel.
% A brake application may be interrupted at any
time if y

ou steer slightly in the opposite direc-
tion.
Conditions for a course-correcting brake applica-
tion (v
ehicles with Driving Assistance Package)
Depending on the setting, a course-correcting
brake application occurs in the following situa-
tions (  page 251).
% The availability of this setting is dependent on
t
he country. If the function is activated in
countries in which this setting is not available,
a lane-correcting brake application is initiated
in all situations described under Sensitive.
Standard se
tting
= A lane marking and an approaching vehicle, an
overtaking vehicle or vehicles driving parallel
to your vehicle were detected in the adjacent lane. The front wheel drives over the lane
mar

king.
Sensitive setting
= The situations described under the Standard
setting.
= A continuous lane marking was detected and
driven over with the front wheel.
% A brake application may be interrupted at any
time if y

ou steer slightly in the opposite direc-
tion.
System limits
N
o lane-correcting brake application occurs in the
following situations:
= You clearly and actively steer, brake or accel-
erate.
= If a driving safety system intervenes, such as
ESP n
, Active Brake Assist or Active Blind Spot
Assist.
= You have adopted a sporty driving style with
high cornering speeds or high rates of acceler-
ation.
= When ESP n
is deactivated. =
When dr
iving with a trailer, the electrical con-
nection to the trailer has been correctly estab-
lished.
= If a loss of tyre pressure or a defective tyre is
detected and displayed.
If you deactivate the Active Lane Keeping Assist
warning and the lane markings cannot be clearly
detected, it is possible that no lane-correcting
brake application takes place (  page 251).
The system may be impaired or may not function
particularly in the following situations:
= If there is poor visibility, e.g. due to insuPcient
illumination of the road, highly variable shade
conditions, rain, snow, fog or heavy spray.
= If there is glare, e.g. from oncoming traPc, the
sun or reOections.
= If there is dirt on the windscreen in the vicinity
of the multifunction camera or if the camera is
misted up, damaged or obscured.
= If there are no lane markings, or several
unclear lane markings are present for one
lane, e.g. around roadworks. 250
Driving and parking

=
If t he lane markings are worn, dark or cov-
ered.
= If the distance to the vehicle in front is too
short and thus the lane markings cannot be
detected.
= If the lane markings change quickly, e.g. lanes
branch oM, cross one another or merge.
= If the carriageway is very narrow and winding.
= Vehicles with Driving Assistance Package: if
the radar sensors in the rear bumper are dirty
or covered in snow and an obstacle is detec-
ted in your lane, no lane-correcting brake
application takes place.
Activating/deactivating Active Lane Keeping
Assist
Multimedia system: 4 © 5
Settings 5
Quick access
5 Active Lane Keeping Assist 
Activate or deactivate the function. Setting Active Lane Keeping Assist
Multimedia sy stem:
4 © 5
Settings 5
Assistance
5 Active Lane Keeping Assist
Setting the sensitivity
% The availability of this function is dependent
on t
he country. 
Select Standard, Sensitive or Off.
Activating or deactivating the haptic warning 
Select Warning.
A

ctivate or deactivate the function. Function of adaptive damping adjustment
Suspension with adaptive damping adjustment
continuousl
y adjusts the characteristics of the
suspension dampers to the current operating and
driving conditions.
The damping is set individually for each wheel and
is aMected by the following factors:
= the road surface conditions
= vehicle load =
t
he drive program selected
= the driving style
The drive program can be adjusted using the
DYNAMIC SELECT switch. Reversing camera
Function of the reversing camera
If y

ou have activated the function in the multime-
dia system (  page 257), the image from the
reversing camera is displayed in the media display
when reverse gear is selected. Dynamic guide
lines show the path the vehicle will take with the
current steering angle. This helps you to orient
yourself and to avoid obstacles when reversing.
The reversing camera is only an aid. It is not a
substitute for your attention to the surroundings.
The responsibility for safe manoeuvring and park-
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 cover of the reversing cam-
er
a manually (  page 257). Driving and parking
251

The guide lines in the media display show the dis-
t ances to your vehicle. The distances displayed
only apply to road level.
Depending on the vehicle equipment, you can
select from the following views:
= Normal view
= Wide-angle view
= Trailer view
The area behind the vehicle is displayed as a mir-
ror image, as in the inside rear view mirror.
Vehicles without Parking Assist PARKTRONIC
The following camera views are available in the
multimedia system: Normal view
1 Yellow guide line, vehicle width (driven sur-
f
ace) depending on the current steering angle
(dynamic)
2 Yellow guide line at a distance of approx-
imat

ely 1.0 m from the rear area
3 Yellow lanes marking the course the tyres will
t

ake with the current steering angle (dynamic)
4 Bumper
5 Red guide line at a distance of approximately
0.3 m fr
om the rear area Wide-angle view
Trailer view (vehicles with a trailer hitch)
1 Yellow guide line, locating aid 252
Driving and parking

2
Red guide line at a distance of approximately
0.3 m fr om the ball head of the trailer hitch
3 Ball head of the trailer hitch
Vehicles with Parking Assist PARKTRONIC
The f
ollowing camera views are available in the
multimedia system: Normal view
1 Yellow lanes marking the course the tyres will
t

ake with the current steering angle (dynamic)
2 Yellow guide line, vehicle width (driven sur-
f
ace) depending on the current steering angle
(dynamic) 3
Red guide line at a distance of approximately
0.3 m fr
om the rear area
4 Yellow warning indicator of Parking Assist
P

ARKTRONIC: obstacles at a distance
between approximately 0.6 m and 1.0 m
5 Red warning display of Parking Assist
P

ARKTRONIC: obstacles are very close
(approximately 0.3 m or less)
6 Orange warning display of Parking Assist
P

ARKTRONIC: obstacles are a medium dis-
tance away (between approximately 0.3 m
and 0.6 m) Wide-angle view Trailer view (vehicles with a trailer hitch)
1 Yellow guide line, locating aid
2 Red guide line at a distance of approximately
0.3 m fr
om the ball head of the trailer hitch
3 Ball head of the trailer hitch
System failure
If t
he reversing camera is not operational, the fol-
lowing display appears in the multimedia system. Driving and parking
253