MERCEDES-BENZ B-CLASS HATCHBACK 2022 Owners Manual

foot from the accelerator pedal
aser o vertaking,
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 228).
Displays in the Instrument Display= J (grey): cruise control is selected but not
yet activated.
= J (green): cruise control is active.
A stored speed appears along with the J dis-
play.
% The segments extending from the current
s
tored speed to the end of the scale, or to the
set winter tyre limit, light up in the speedome-
ter. System limits
Cr

uise control may be unable to maintain the
stored speed on uphill gradients. The stored
speed is resumed when the gradient evens out.
Change into a lower gear in good time on long and
steep downhill gradients. Take particular note of
this when driving a laden vehicle. By doing so, you
will make use of the engine's braking eMect. This
relieves the load on the brake system and pre-
vents the brakes from overheating and wearing
too quickly.
Do not use cruise control in the following situa-
tions:
= in traPc 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:
= V
ariable: 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
responsibility; you may otherwise fail to recognise
dangers ( page 228).
Displays in the Instrument Display=

If you depress the accelerator pedal beyond the
pr essure point (kickdown), the variable limiter
switches to passive mode. The Limiter passive
message appears in the Instrument Display and
the


To select the variable limiter: select

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 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 228).
Active Distance Assist DISTRONIC displays in the
Instrument Display Assistant display
1
Route-based speed adaptation: type of route
e
vent ( page 245)
2 Vehicle in front
3 Distance indicator Driving and parking
241

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 245).
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 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. =
The tr
ansmission is in position h.
= The driver's door is closed.
= Check of the radar sensor system has been
successfully completed.
= Parking Assist PARKTRONIC is not being used
to park the vehicle or to exit from a parking
space. Driving and parking
243


To operate Active Distance Assist
DIS TRONIC: press the rocker switches on the
steering wheel control unit up or down to the
desired position.
Switching between Active Distance Assist
DIS
TRONIC and the limiter 
Press button *.
Activating the variable limiter or Active Distance
Assis
t DISTRONIC 
To activate without a stored speed: pr
ess
rocker switch 1 up M or down N, or
select / with the les rocker switch.
or 
To activate with a stored speed: select /
wit
h the les rocker switch. 
Active Distance Assist DISTRONIC: r
emove
your foot from the accelerator pedal.
The current vehicle speed is stored and main-
tained (Active Distance Assist DISTRONIC) or
limited (variable limiter) by the vehicle.
Adopting a detected speed limit 
Activate Active Distance Assist DISTRONIC. 
If a tr
aPc sign has been detected and is dis-
played in the instrument cluster: select /
with the les rocker switch.
The maximum permissible speed on the traPc
sign is adopted as the stored speed. The vehi-
cle adapts its speed to that of the vehicle in
front, but only up to the stored speed.
Pulling away with Active Distance Assist
DIS
TRONIC 
Activate Active Distance Assist DISTRONIC
and r
emove your foot from the brake pedal. 
Select / wit
h the les rocker switch.
or 
Depress the accelerator pedal br
ieOy and
Nrmly.
The functions of Active Distance Assist
DISTRONIC continue to be carried out.
Deactivating Active Distance Assist DISTRONIC &
WARNING Risk of an accident due t
o
Active Distance Assist DISTRONIC being
active when you leave the driver's seat
If you leave the driver's seat while the vehicle
is being br
aked by Active Distance Assist
DISTRONIC only, the vehicle can roll away. 
Always deactivate Active Distance Assist
DIS

TRONIC and secure the vehicle to
prevent it from rolling away before you
leave the driver's seat. 
Select O wit
h the les rocker switch.
% If you brake, deactivate ESP n
or if ESP n
int
er-
venes, Active Distance Assist DISTRONIC is
deactivated.
Increasing/decreasing the stored speed 
1 km/h: press rocker switch 1 up M or
do
wn N to the pressure point, or press and
hold (increments of1 km/h).
or 244
Driving and parking


10 km/h: press rocker switch 1 up M or
do wn N beyond the pressure point, or
press and hold (increments of10 km/h).
or 
Accelerate the vehicle to the desired speed
and pr

ess rocker switch 1 up M.
Changing the speciNed dis
tance to the vehicle in
front 
To reduce the speciNed dis
tance: press the
right rocker switch up ( Ñ).
To increase the speciNed dis
tance: press the
right rocker switch down ( Ò).
Function of Active Speed Limit Assist
If a c
hange in the speed limit of 20 km/h or more
is detected and automatic adoption of speed lim-
its is activated, the new speed limit is automati-
cally adopted as the stored speed (  page 257).
The driven speed is adjusted when the vehicle is
level with the traPc sign at the latest. In the case
of signs indicating entry into an urban area, the
speed is adapted according to the speed permit-
ted within the urban area. The speed limit display in the Instrument Display is always updated when
t
he vehicle is level with the traPc sign.
If there is no speed restriction on an unlimited
stretch of road (e.g. on a motorway), the recom-
mended speed is automatically adopted as the
stored speed. The system uses the speed stored
on an unlimited stretch of road as the recommen-
ded speed. If you do not alter the stored speed on
an unlimited stretch of road, the recommended
speed is 130 km/h.
If Active Distance Assist DISTRONIC has been put
into passive mode by pressing the accelerator
pedal, only speed limits which are higher than the
set speed are adopted.
Observe the notes on driving systems and your
responsibility; you may otherwise fail to recognise
dangers (  page 228).
System limits
The system limits of TraPc Sign Assist apply to
the detection of traPc signs ( page 256).
Speed limits below 20 km/h are not automatically
adopted by the system as the stored speed. Tem-
porary speed restrictions (e.g. for a certain time
or due to weather conditions) cannot be properly detected by the system. The maximum permissi-
ble speed appl ying to a vehicle with a trailer is not
detected by the system.
Adjust the speed in these situations. &
WARNING Risk of accident due t
o Active
Speed Limit Assist adapting the vehicle's
speed
The speed adopted by Active Speed Limit
Assis
t may be too high or incorrect in some
individual cases, such as:
= at speed limits below 20 km/h
= in wet conditions or in fog
= when towing a trailer 
Ensure that the driven speed complies
wit

h traPc regulations. 
Adjust the driving speed to suit current
tr
aPc and weather conditions. Function of route-based speed adaptation
When A

ctive Distance Assist DISTRONIC is activa-
ted, the vehicle speed will be adapted accordingly
to the route events ahead. Depending on the drive Driving and parking
245

program selected, the vehicle negotiates a route
e vent ahead in an economical, comfortable or
dynamic manner. When the route event has been
passed, the vehicle accelerates again to the
stored speed. The set distance to the vehicle in
front, vehicles detected ahead and speed restric-
tions ahead are taken into account.
You can activate and deactivate route-based
speed adaptation in the multimedia system
(  page 247).
The following route events are taken into account: = Bends
= T-junctions, roundabouts and toll stations
= Turns and exits
= TraPc jams ahead (only with Live TraPc Infor-
mation )
% When the toll station is reached, Active Dis-
t
ance Assist DISTRONIC adopts the speed as
the stored speed.
Also, the speed is reduced if the turn signal indi-
cat
or to change lanes is switched on and one of
the following situations is detected:
= Turning at junctions =
Dr
iving on slowing-down lanes
= Driving on lanes adjacent to slowing-down
lanes
The driver is responsible for choosing the right
speed and observing other road users. This
applies in particular to junctions, roundabouts and
traPc lights, as route-based speed adaptation
does not brake the vehicle to a standstill.
When route guidance is active, the Nrst speed
adjustment is carried out automatically. If the turn
signal indicator is switched on, the selected route
is conNrmed and further speed adjustment is acti-
vated.
Speed adaptation is cancelled in the following
cases:
= If the turn signal indicator is switched oM
before the route event.
= If the driver depresses the accelerator or
brake pedal during the process.
System limits
Route-based speed adaptation does not take right
of way regulations into account. The driver is responsible for complying with road
tr aPc regula-
tions and driving at a suitable speed.
The speed adaptation made by the system may
not always be suitable, particularly in the following
situations:
= the road's course not clearly visible
= Road narrowing
= varying maximum permissible speeds in indi-
vidual lanes, forexample at toll stations
= wet road surfaces, snow or ice
= when towing a trailer
In these situations the driver must intervene
accordingly. &
WARNING Risk of accident in spit
e of
route-based speed adaptation
Route-based speed adaptation can malfunc-
tion or be t
emporarily unavailable in the fol-
lowing situations:
= If the driver does not follow the calculated
route 246
Driving and parking

=
If map dat a is not up-to-date or available
= In the event of roadworks
= In bad weather or road conditions
= If the accelerator pedal is depressed
= In the event of electronically displayed
speed limitations 
Adapt the speed to the tr
aPc situation.Setting route-based speed adaptation
R

equirements:
= Active Distance Assist DISTRONIC is activa-
ted.
= ECO Assist is active.
Multimedia system: 4 © 5
Settings 5
Assistance
5 Route-based speed adapt. 
Activate or deactivate the function.
When t
he function is active, the vehicle speed
is adjusted depending on the route events
ahead. %
Further information on the route-based speed
adap
tation (  page 245). Active Steering Assist
Function of Active Steering Assist
A

ctive Steering Assist is only available up to a
speed of 210 km/h. The system helps you to stay
in the centre of the lane by means of moderate
steering interventions. Depending on the speed
driven, Active Steering Assist uses the vehicles
ahead and lane markings as a reference.
% Depending on the country, in the lower speed
r
ange Active Steering Assist can use the sur-
rounding traPc as a reference. If necessary,
Active Steering Assist can then also provide
assistance when driving outside the centre of
the lane, forexample, to form a rescue lane.
If the detection of lane markings and vehicles
ahead is im
paired, Active Steering Assist switches
to passive mode. The system provides no support
in this case. Status display of Active Steering Assist in the
Ins
trument Display
= Ø (grey): activated and passive
= Ø (green): activated and active
= Ø (red): system limits detected
= Ø (white, red hands): "hands on the steer-
ing wheel" prompt
% During the transition from active to passive
s

tatus, the Ø symbol is shown as enlarged
and Oashing. Once the system is passive, the
Ø symbol is shown as grey in the Instru-
ment Display.
% Depending on the selected vehicle settings,
A

ctive Steering Assist may be unavailable.
Steering and touch detection
The dr
iver is required to keep their hands on the
steering wheel at all times and be able to inter-
vene at any time to correct the course of the vehi-
cle and keep it in lane. The driver must expect a
change from active to passive mode or vice versa
at any time. Driving and parking
247