MERCEDES-BENZ A-CLASS HATCHBACK 2022 Owners Manual

Function of STEER CONTROL
STEER CONTROL assists you by transmitting a
no
ticeable steering force to the steering wheel in
the direction required for vehicle stabilisation.
This steering recommendation is given in the fol-
lowing situations:
= both right wheels or both les wheels are on a
wet or slippery road surface when you brake
= the vehicle starts to skid
System limits
STEER CONTROL may be impaired or may not
function in the following situations:
= ESP n
is deactivated.
= ESP n
is malfunctioning.
= The steering is malfunctioning.
If ESP n
is malfunctioning, you will be assisted fur-
ther by the electric power steering. HOLD function
HOLD function
The HOLD function holds t
he vehicle at a stand-
still without requiring you to depress the brake
pedal, e.g. while waiting in traPc.
The HOLD function is only an aid. The responsibil-
ity for the vehicle safely standing still remains with
the driver.
System limits
The HOLD function is only intended to provide
assistance when driving and is not a suPcient
means of safeguarding the vehicle against rolling
away when stationary.
= The incline must not be greater than 30%. Activating/deactivating the HOLD function &
WARNING Risk of an accident due t o the
HOLD function being active when you
leave the vehicle
If the vehicle is only braked with the HOLD
function it could, in t
he following situations,
roll away:
= If there is a malfunction in the system or in
the power supply.
= If the HOLD function is deactivated by
depressing the accelerator pedal or brake
pedal, e.g. by a vehicle occupant. 
Always secure the vehicle against rolling
a
way before you leave it. Requirements:
= The v

ehicle is stationary.
= The driver's door is closed or the seat belt on
the driver's side is fastened.
= The vehicle has been started or has been
automatically switched oM by the ECO start/
stop function. 228
Driving and parking

=
The electr ic parking brake is released.
= Active Distance Assist DISTRONIC is deactiva-
ted.
= The transmission is in position h, k or i.
(Vehicles with automatic transmission)
Activating the HOLD function 
Depress the brake pedal, and aser a shor
t
time quickly depress further until the


Swisly move your foot from the brake
pedal to the accelerator pedal. Do not
leave the vehicle when it is being held by
Hill Start Assist. Function of Adaptive Brake Lights
Adaptive Brake Lights warn following
tr
aPc in an
emergency braking situation with the following
actions:
= Oashing the brake lamps
= activating the hazard warning lights
( page 139)
If the vehicle is braked sharply from speeds above
50 km/h, the brake lamps Oash rapidly. This pro-
vides traPc travelling behind you with an even
more noticeable warning. Start-oM
assis
tFunction of the s

tart-oM assist
The start-oM assist enables optimal vehicle accel-
eration from a standstill. For this, a suitably high- grip road surface is required, the tyres and vehicle
mus

t also be in good condition.
Do not activate the start-oM assist on public
roads.
Be sure to observe the safety notes and informa-
tion on ESP n
( page 225).
Activating the start-oM assist &
WARNING Risk of skidding and ha
ving an
accident from wheels spinning
When you use s
tart-oM assist, individual
wheels could spin and you could lose control
of the vehicle.
If ESP n
is deactivated, there is a risk of skid-
ding and accident! 
Make sure that no persons or obstacles
ar
e in the close vicinity of your vehicle. 
Deactivating ESP n
( pag
e 227). 
Move the steering wheel to the straight-ahead
position. 
Depress the brake pedal Nr
mly with your les
foot and keep it depressed. 
Engage the h dr
ive position ( page 187). 
Select the sportiest available drive program
B or C(  pag

e 181). 
Rapidly depress the accelerator pedal fully. 
Take your foot oM t
he brake, but keep the
accelerator pedal depressed.
The vehicle pulls away at maximum accelera-
tion. 
Switch on ESP n
once t
he acceleration proce-
dure is complete. ESP n
will otherwise not be
able to stabilise the vehicle if the vehicle
starts to skid or a wheel starts to spin.
Cancelling the s
tart-oM assist 
Remove your foot from the accelerator pedal. 
Reactivate the ESP n
. ATTENTION ASSIST
Function of ATTENTION ASSIST
A

TTENTION ASSIST assists you on long, monoto-
nous journeys, e.g. on motorways and trunk 230
Driving and parking

roads. If ATTENTION ASSIST detects indicators of
f atigue or increasing lapses in concentration on
the part of the driver, it suggests taking a break.
ATTENTION ASSIST is only an aid. It cannot
always detect fatigue or lapses in concentration in
time. The system is not a substitute for a well-res-
ted and attentive driver. On long journeys, take
regular breaks in good time that allow for ade-
quate recuperation.
You can choose between two settings:
= Standard: normal system sensitivity.
= Sensitive: higher system sensitivity. The driver
is warned earlier and the attention level detec-
ted by ATTENTION ASSIST is adapted accord-
ingly.
If drowsiness or increasing lapses in concentra-
tion are detected, the ATTENTION ASSIST Take
a break! warning appears in the Instrument Dis-
play. You can acknowledge the message and take
a break where necessary. If you do not take a
break and ATTENTION ASSIST continues to detect
increasing lapses in concentration, you will be
warned again aser a minimum of 15 minutes. You can have the following status information for
A

TTENTION ASSIST displayed in the assistance
menu of the on-board computer:
= The length of the journey since the last break.
= The attention level determined by ATTENTION
ASSIST:
- the fuller the circle, the higher the atten-
tion level determined
- as your attention wanes, the circle in the
centre of the display becomes smaller
If ATTENTION ASSIST is unable to calculate the
attention level and cannot issue a warning, the
System suspended message appears. If a warning is given in the Instrument Display, the
multimedia sy
stem oMers to search for a rest
area. You can select a rest area and start naviga-
tion to this rest area. This function can be activa-
ted and deactivated in the multimedia system.
If ATTENTION ASSIST is deactivated, the Û
symbol appears in the assistance graphic in the
Instrument Display. Aser the vehicle is started,
ATTENTION ASSIST is automatically activated. The
last selected sensitivity level remains stored.
System limits
ATTENTION ASSIST is active in the 60 km/h to
200 km/h speed range.
Particularly in the following situations, ATTENTION
ASSIST only functions in a restricted manner and
warnings may be delayed or not occur:
= If you have been driving for less than approx-
imately 30 minutes.
= If the road condition is poor (uneven road sur-
face or potholes).
= If there is a strong side wind.
= If you adopt a sporty driving style (high corner-
ing speeds or high rates of acceleration). Driving and parking
231

=
If A ctive Steering Assist is activated and active
( page 241).
= If the time has been set incorrectly.
= If you change lanes and vary your speed fre-
quently in active driving situations.
The ATTENTION ASSIST drowsiness or alertness
assessment is reset and restarted when continu-
ing the journey in the following situations:
= If you switch oM the vehicle.
= If you unfasten your seat belt and open the
driver's door (e.g. to change drivers or take a
break).
Setting ATTENTION ASSIST
Multimedia system:
4 © 5
Settings 5
Assistance
5 Attention Assist
Setting options 
Select Standard, Sensitive or Off.
Suggesting a rest area 
Select Suggest rest area . 
Activate or deactivate the function.
If A TTENTION ASSIST detects fatigue or
increasing lack of attention, it suggests a rest
area in the vicinity. 
Select the suggested rest area.
Y
ou are guided to the selected rest area. Cruise control and limiter
Function of cruise control
Cr

uise control regulates the speed to the value
selected by the driver.
If you accelerate to overtake, forexample, the
stored speed is not deleted. If you remove your
foot from the accelerator pedal aser overtaking,
cruise control will resume speed regulation back
to the stored speed.
You can store any speed above 20 km/h up to the
maximum design speed or up to the set winter
tyre limit.
Observe the notes on driving systems and your
responsibility; you may otherwise fail to recognise
dangers (  page 223). Mercedes!

Do not use cruise control in the following situa-
tions:
= in tr
aPc situations which require frequent
changes of speed, e.g. in heavy traPc, on
winding roads
= on slippery roads. Accelerating can cause the
drive wheels to lose traction and the vehicle
could then skid.
= when visibility is poor
Function of the limiter
The limiter restricts the speed of the vehicle. To
reduce the speed to the set speed, the limiter
applies the brakes automatically.
You can limit the speed as follows:
= Variable: for a short-term speed restriction,
e.g. in built-up areas
= Permanent: for a longer-term speed restric-
tion, e.g. in winter tyre mode
You can store any speed above 20 km/h up to the
maximum design speed or up to the set winter
tyre limit. You can also perform settings while the
vehicle is stationary if the vehicle has been star-
ted. Observe the notes on driving systems and your
r esponsibility; you may otherwise fail to recognise
dangers ( page 223).
Mercedes!

Variable limiter
= The v
ariable limiter is selected. 
To operate cruise control or the variable lim-
it

er: press the rocker switch on the steering
wheel control unit up or down to the desired
position.
Switching between cruise control and the varia-
ble limit
er 
To select cruise control: select J wit
h the
right rocker switch. 
To select the variable limiter: select

Deactivating cruise control or the variable limiter

Select O wit h the les rocker switch.
% If you brake, deactivate ESP n
or if ESP n
int
er-
venes, cruise control is deactivated. The varia-
ble limiter is not deactivated.
Information on the permanent limiter
If t
he vehicle should never exceed a speciNc
speed (e.g. for driving in winter tyre mode), you
can set this speed with the permanent limiter.
You do this by limiting the speed between
160 km/h and 240 km/h in the multimedia sys-
tem ( page 235).
Shortly before the set speed is reached, it
appears in the Instrument Display. When you con-
Nrm the message, display messages no longer
appear until you switch oM the vehicle. The speed
will only be displayed again once the vehicle has
been restarted or if the set speed is changed.
The permanent limiter does not switch to passive
mode even during kickdown and the driven speed
remains below the set speed. Setting the limit speed for winter tyres
Multimedia sy

stem:
4 © 5
Settings 5
Vehicle
5 Winter tyres limit 
Select a speed or deactivate the function. Active Distance Assist DISTRONIC
Function of Active Distance Assist DISTRONIC
DIS
TRONIC Active Distance Assist maintains the
set speed when driving freely. If vehicles are
detected ahead, the set distance is maintained, if
necessary until the vehicle comes to a standstill.
The vehicle accelerates or brakes depending on
the distance to the vehicle in front and the set
speed. The speed and distance to the vehicle in
front are set and saved using the steering wheel.
Available speed range: = Vehicles without Driving Assistance Package:
20 km/h - 200 km/h
= Vehicles with Driving Assistance Package:
20 km/h - 210 km/h Other features of Active Distance Assist
DIS

TRONIC:
= Adjusts the driving style depending on the
selected drive program (fuel-saving, comforta-
ble or dynamic)
= Initiates acceleration to the stored speed if the
turn signal indicator is switched on to change
to the overtaking lane
= Vehicles with Driving Assistance Package:
- Reacts to stationary vehicles detected in
urban speed ranges (except bicycles and
motorcycles)
- Takes one-sided overtaking restrictions
into account on motorways or on multi-
lane roads with separate carriageways
(country-dependent)
Vehicles with Driving Assistance Package and
Parking Package: if the vehicle has been braked to
a standstill on multi-lane, separate carriageways
by Active Distance Assist DISTRONIC, it can auto-
matically follow the vehicle in front when driving
oM again within 30 seconds. If a critical situation
is detected when driving oM, a visual and acoustic
warning is given indicating that the driver must Driving and parking
235

now take control of the vehicle. The vehicle is not
acceler ated any further.
Observe the notes on driving systems and your
responsibility; you may otherwise fail to recognise
dangers ( page 223).
Active Distance Assist DISTRONIC displays in the
Instrument Display Assistant display
1
Route-based speed adaptation: type of route
e
vent ( page 240)
2 Vehicle in front
3 Distance indicator 4
Set speciNed dis
tance
5 Active Lane Change Assist lane change dis-
pla

y
Permanent status display of Active Distance
Assis
t DISTRONIC
= M (white): Active Distance Assist
DISTRONIC selected, speciNed distance set
= M (white vehicle, green speedometer):
Active Distance Assist DISTRONIC active,
speciNed distance set and vehicle detected
= M (green): Active Distance Assist
DISTRONIC active, speciNed distance set and
vehicle detected
= r: Route-based speed adaptation active
( page 240).
The stored speed is shown along with the perma-
nent status display and highlighted on the speed-
ometer. When Active Distance Assist DISTRONIC
is passive, the speed is greyed out.
% On motorways or high-speed major roads, the
g
reen

=
If t he radar sensors are dirty or covered.
= In multi-storey car parks or on roads with
steep uphill or downhill gradients.
= If there are narrow vehicles in front, such as
bicycles or motorcycles.
In addition, on slippery roads, braking or acceler-
ating can cause one or several wheels to lose
traction and the vehicle could then skid.
Do not use Active Distance Assist DISTRONIC in
these situations. &
WARNING Risk of accident fr
om accelera-
tion or braking by Active Distance Assist
DISTRONIC
Active Distance Assist DISTRONIC may accel-
er
ate or brake in the following cases, for
example:
= If the vehicle pulls away using Active Dis-
tance Assist DISTRONIC.
= If the stored speed is called up and is con-
siderably faster or slower than the cur-
rently driven speed. =
If A
ctive Distance Assist DISTRONIC no
longer detects a vehicle in front or does
not react to relevant objects. 
Always carefully observe the tr
aPc con-
ditions and be ready to brake at all
times. 
Take into account the tr
aPc situation
before calling up the stored speed. &
WARNING Risk of accident due t
o insuP-
cient deceleration by Active Distance
Assist DISTRONIC
Active Distance Assist DISTRONIC brakes your
v
ehicle with up to 50% of the possible deceler-
ation. If this deceleration is not suPcient,
Active Distance Assist DISTRONIC alerts you
with a visual and acoustic warning. 
Adjust your speed and maintain a suita-
ble dis
tance from the vehicle in front. 
Brake the vehicle yourself and/or take
e

vasive action. &
WARNING Risk of accident if de
tection
function of Active Distance Assist
DISTRONIC is impaired
Active Distance Assist DISTRONIC does not
r
eact or has a limited reaction:
= when driving on a diMerent lane or when
changing lanes
= to pedestrians, animals, bicycles or sta-
tionary vehicles, or unexpected obstacles
= to complex traPc conditions
= to oncoming vehicles and crossing traPc
As a result, Active Distance Assist DISTRONIC
may neither give warnings nor intervene in
such situations. 
Always observe the tr
aPc conditions
carefully and react accordingly. Operating Active Distance Assist DISTRONIC
R
equirements:
= The electric parking brake is released.
= ESP n
is activated and is not intervening. Driving and parking
237