2021 MERCEDES-BENZ A-CLASS SALOON cruise control

1
Steering wheel gearshiT paddles →
179
2 Combination switch →
132
3 Instrument displ ay →
272
4 DIRECT SELECT le ver →
177
5 ü Start/stop but ton →
160
è ECO start/s top function →
167
6 Media display →
279
7 Climate control systems →
148
8 £ Hazard warning light system →
133
9 PASSENGER AIR BAG indicator la mps→
57
A Glovecompartment →
120
B Stow age compartment →
120
C Cup holder
D 8 Controller forvo lume and switching
sound on/o. →
279
Ü Switches the MBUX multimedia system
on/o. →
279 E
z Calls up navigation →
281
F | Calls up radio or media →
281
G % Calls up thete lephone →
281
H ß Calls up favo urites →
281
I y Calls up vehicle functions →
281
J c Active Parking Assist →
260
K DYNAMIC SELECT switch →
173
L Touchpad →
281
M Control panel forth e MBUX multimedia system →
273
N Adjusts the steering wheel →
114
O ý Switches the steering wheel heater
on/o. →
115
P Control panel:
On-board computer →
273
Cruise control or variable limi ter →
224
I Active Distance Assist DISTRONIC →
228
Q Diagnostics connection →
38 At
a glance – Cockpit
7
7

R
Depending on the equipment, the maximum
set speed for cruise control, limiter and Active
Distance Assist DISTRONIC can be limited to
th e maximum electrically drivable speed
R Activation of the combustion engine via the
pressure point of the accelerator pedal (kic k-
down)
Ï Battery Level (plug-inhybrid)
R Prioritised maintenance of the state of charge
of the high-voltage batter y,e.g. for subse-
qu ent journe ysinthe inner city/low emission
zones
R The selection of the matching drive type by
th ehy brid system depends on the driving con-
ditions and the distance
; Eco
R Only available forve hicles with automatic
transmission
R Particular lyeconomical driving
R Balance between traction and stability
R Recommended for all road conditions R
Full de velopment of all intelligent hybrid func-
tions and adap tation of the coasting charac-
te ristics of theve hicle totra1c (plug-in hybrid)
R The selection of the matching drive type by
th ehy brid system depends on the driving con-
ditions and the distance (plug-in hybrid)
% Depending on the situation, the cylinder can
be brie0y deactivated in the drive pro-
gr ams ; andA, depending on the
engine.
% The ESP ®
settings in the drive prog rams ;
and A are designed for stability. Therefore,
ch oose one of these driving prog rams, espe-
cially when transporting roof loads, in trailer
operation and when theve hicle is fully loaded
or fully occupied.
Depending on the drive prog ram, thefo llowing
systems change their characteristics:
R Drive
- engine and transmission management
- Active Distance Assist DISTRONIC
R ESP ® R
V
V ehicles wit
ehicles wit h adap
h adaptiv
tive dam
e dam ping adjus
ping adjustment tment:
:
suspension
R electric po wer steering Selects t
Selects t
he dr
he driv
ive pr
e pr ogr
ogram
am %
Depending on the equipment, theve hicle is
/tted with either a switch or a but ton. Driving and parking
173
173

R
EBD (E Electronic B Brakeforce D Distribution)
( / page 218)
R STEER CONTROL (/ page 218)
R HOLD function (/ page 219)
R Hill Start Assist (/ page 220)
R Adaptive Brake Lights (/ page 220)
R Start-o. assist (/ page 221)
R ATTENTION ASSIST (/ page 221)
R Cruise cont rol (/ page 223)
R Limiter (/ page 223)
R Tra1c Sign Assist (/ page 241)
R Speed Limit Assist (countr y-dependent)
(/ page 240)
R Suspension with adaptive damping adjustment
(/ page 248)
Dr
Dr iving Assist
iving Assist ance pack
ance package
age
The following functions are part of the Driving
Assistance Package. Cer tain functions are only
av ailable in some countries. Some functions are
also available without the Driving Assistance
Pa ckage, albeit with restric ted functionality. R
Active Distance Assist DISTRONIC
(/ page 226)
R Active Speed Limit Assist (countr y-dependent)
(/ page 230)
R Route-based speed adap tation (countr y-
dependent) (/ page 231)
R Active Brake Assist (/ page 235)
R Active Steering Assist (countr y-dependent)
(/ page 232)
R Active Emer gency Stop Assist (countr y-
dependent) (/ page 234)
R Blind Spot Assist and Active Blind Spot Assist
with exitwa rning (/ page 243)
R Active Lane Keeping Assist (/ page 246)
P
P ar
ar king P
king P ack
ackage
age
R Reversing camera (/ page 249)
R 360° Camera (/ page 251)
R Parking Assist PARKTRONIC (/ page 255)
R Active Parking Assist (/ page 259) F
F
unctions of ABS
unctions of ABS The Anti-lock Brake System (ABS)
regulates the
brake pressure in critical driving situations:
R During braking, for instance, at maximum full-
stop braking or if there is insu1cient tyre trac-
tion, the wheels are pr evented from locking.
R Vehicle steerability while braking is ensu red.
If ABS inter venes when braking, you will feel a
pulsing in the brake pedal. The pulsating brake
pedal can be an indication of hazardous road con-
ditions and can ser veas a reminder totake extra
care while driving.
Syst
Syst em limits
em limits
R ABS is acti vefrom speeds of approx. 5 km/h.
R ABS may be impaired or may not function if a
malfunction has occu rred and theye llow !
ABS warning lamp lights up continuously aTer
th eve hicle is star ted. Driving and parking
215
215

Se
Se
tting A
tting A TTENTION ASSI ST
TTENTION ASSIST
Multimedia system:
4 © 5
Settings 5
Assistance
5 Attention Assist
Se
Se tting op
tting op tions
tions #
Select Standard ,Sensitive orOff .
Sugg
Sugg es
esting a rting a r es
est art ar ea
ea #
Select Suggest rest area . #
Activate or deactivate the function.
If AT TENTION ASSIST de tects fatigue or
increasing lack of attention, it suggests a rest
area in the vicinity. #
Select the suggested rest area.
Yo u are guided tothe selected rest area. Cr
Cr
uise contr
uise control and limit ol and limit er
er F
F
unction of cr
unction of cr uise contr
uise controlol
Cruise control regula testh e speed totheva lue
selected bythe driver.
If yo u accelerate toove rtake, forex ample, the
stored speed is not dele ted. If youre mo veyour fo
ot from the accelerator pedal aTer overtaking,
cruise cont rol will resume speed regulation back
to the stored speed.
Yo u can store any speed abo ve20 km/h up tothe
maximum design speed or up tothe set winter
tyre limit.
Obser vethe no tes on driving systems and your
re sponsibility; you may otherwise failto recognise
dangers (/ page 213).
Mer
Mer cedes‑ cedes‑ AMG v
AMG vehicles:
ehicles: cruise cont rol is availa-
ble up toa maximum speed of 250 km/h.
Displ ay
Display s in t
s in the Ins
he Instr trument Display
ument Display
R h (gre y): cruise control is selected but not
yet activated.
R h (gre en): cruise control is active.
A stored speed appears along with theh dis-
pla y.
% The segments extending from the cur rent
stored speed tothe end of the scale, or tothe
set winter tyre limit, light up in the speedome-
te r. Syst Syst
em limits em limits
Cruise control may be unable tomaintain the
stored speed on uphill gradients. The stored
speed is resumed when thegr adient evens out.
Change into a lo werge ar in good time on long and
steep downhill gradients. Take particular no teof
th is when driving a laden vehicle. By doing so, you
will make use of the engine's braking e.ect. This
re lie vesth e load on the brake system and pre-
ve nts the brakes from overheating and wearing
to oqu ickl y.
Do not use cruise control in thefo llowing situa-
tions:
R in tra1c situations which requ ire frequent
ch anges of speed, e.g. in heavy tra1c, on
winding roads
R on slippery roads. Accelerating can cause the
drive wheels tolose traction and theve hicle
could then skid.
R when visibility is poor
F
F unction of t
unction of t he limit
he limiter
er
The limiter restricts the speed of theve hicle. To
re duce the speed tothe set speed, the limiter
applies the brakes automaticall y. Driving and parking
223
223

Yo
u can limit the speed as follo ws:
R V
Var
ar iable:
iable: for a short-term speed restriction,
e.g. in built-up areas
R P
P er
er manent
manent :
:fo r a longer-term speed restric-
tion, e.g. in winter ty remode
Yo u can store any speed abo ve20 km/h up tothe
maximum design speed or up tothe set winter
tyre limit. You can also per form settings while the
ve hicle is stationary if theve hicle has been star-
te d.
Obser vethe no tes on driving systems and your
re sponsibility; you may otherwise failto recognise
dangers (/ page 213).
Mer
Mer cedes‑
cedes‑ AMG v
AMG vehicles:
ehicles: the limiter is available
up toa maximum speed of 250 km/h.
Displ ay
Display s in t
s in the Ins
he Instr trument Display
ument Display
R È (gre y): variable limi ter is selected but not
yet activated.
R È (0ashes grey ):va riable limi ter is temp o-
rari lypassive.
R È (gre en): variable limi ter is activated. A stored speed appears along with
theÈ dis-
pla y.The segments in the speedome ter light up,
up tothe cur rently stored speed.
If yo u depress the accelerator pedal be yond the
pressure point (kickdown), theva riable limi ter
switches topassive mode. The Limiter passive
message appears in the Instrument Display and
th eÈ display 0ashes.
The variable limi ter is reactivated in thefo llowing
situations:
R Ifth eve hicle speed drops below the stored
speed.
R Ifth e stored speed is called up.
R Ifyo u store a new speed.
Oper
Oper ating cr
ating cr uise contr
uise contr ol or t
ol or the v
he var
ariable limit
iable limit er
er &
W
WARNING
ARNING Risk of accident due tostored
speed
If yo u call up the stored speed and this is
lo we rth an your cur rent speed, theve hicle
decelerates. #
Take into account the tra1c situation
before calling up the stored speed. R
R
eq
eq uir
uir ements:
ements:
Cruise control R Cruise control is selected.
R ESP ®
must be activated, but not inter vening.
R The vehicle speed is at least 20 km/h.
R The transmission is in position h.
Va riable limi ter
R The variable limi ter is selected. 224
224
Driving and parking

#
T To oper o oper at
ate cr
e cr uise contr
uise contr ol or t
ol or the v
he var
ariable lim-
iable lim-
it
it er
er :
:press thero ck er switch on the steering
wheel control unit up or down tothe desired
position.
Switc
Switc hing be
hing be tw
tween cr
een cr uise contr
uise contr ol and t
ol and the v
he var
aria-
ia-
ble limit
ble limit er
er #
T
To select cr
o select cr uise contr
uise control:
ol:select hwiththe
ri ght rock er switch. #
T
To select t
o select t he v
he var
ariable limit
iable limit er
er:
:select Èwith
th eright rock er switch.
% Vehicles with Active Distance Assist
DISTRONIC: theva riable limi ter is selected by
a di.erent but ton (/ page 228).
A
A ctiv
ctiv ating cr
ating cr uise contr
uise control or t ol or the v
he var
ar iable limit
iable limit er
er #
Press rock er switch 1upM or down
N.
The cur rent vehicle speed is stored and the
ve hicle main tains this speed (cruise control) or
does not exceed it (variable limiter).
or #
Select Jwiththe leT rock er switch.
The last stored speed is called up and the
ve hicle main tains this speed (cruise control) or
does not exceed it (variable limiter).
If th e last stored speed has pr eviously been
dele ted, the cur rent vehicle speed is stored.
% When you switch o. theve hicle, the last
speed stored is dele ted.
When you activate cruise control or Active
Distance Assist DISTRONIC, the last speed
stored forth eva riable limi ter is dele ted. Incr
Incr easing/decr
easing/decr easing t easing the st
he stor
ored speed
ed speed #
1 km/h: press roc ker switch 1upM or
down Ntothe pressure point, or press and
hold (increments of 1 km/h).
or #
10 km/h: press rock er switch 1upM or
down Nbeyond the pressure point, or
press and hold (increments of 10 km/h).
or #
Accelerate theve hicle tothe desired speed
and press rock er switch 1upM.
A
A dop
dop ting a det
ting a det ect
ected speed
ed speed #
Activate cruise control or theva riable limi ter. #
If a tra1c sign has been de tected and is dis-
pla yed in the inst rument cluster: select J
with the leT rock er switch.
The maximum permissible speed shown bythe
tra1c sign is stored andtheve hicle main tains
or does not exceed this speed.
Deactiv
Deactiv ating cr
ating cr uise contr
uise contr ol or t
ol or the v
he var
ariable limit
iable limit er
er #
Select Owiththe leT rock er switch. Driving and parking
225
225

R
Ifyo u turn sharply when passing tra1c signs
outside the camera's /eld of vision.
Se
Se tting Speed Limit Assist
tting Speed Limit Assist
Multimedia system:
4 © 5
Settings 5
Assistance
5 Speed Limit Assist
A
A djus
djus ting t
ting t he type of w
he type of w ar
arning
ning #
Select Visual & audible ,Visual orNone.
A
A djus
djus ting t
ting t he w
he war
arning t
ning t hr
hreshold
eshold
This value de term ines the speed at which a warn-
ing is issued when exceeded. #
Select Warning threshold. #
Set the desired speed.
% If one of thefo llowing systems is activated,
th e speed de tected can be manually adop ted
as the speed limit:
R Active Distance Assist DISTRONIC
R Cruise control
R Variable limi ter
Fu rther information (/ page 228). T
T
r
ra1c
a1c Sign Assist
Sign Assist F
F
unction of
unction of Tr
Tra1c
a1c Sign Assist
Sign Assist
Tr a1c Sign Assist de tects tra1c signs with the
multifunction camera (/ page 214). It assists
yo uby displaying de tected speed limits and over-
ta king restrictions in the Instrument Displa y.
Obser vethe no tes on driving systems and your
re sponsibility; you may otherwise failto recognise
dangers (/ page 213).
Since Tra1c Sign Assist also uses the data stored
in the navigation system, it can update the display
in thefo llowing situations without de tecting tra1c
signs.
If th e system de tects that you are driving onto a
section of road in the wrong direction of tr avel, it
triggers a warning.
The camera also de tects tra1c signs with a
re striction indicated byan additional sign (e.g.
when wet). These are only displa yed if a restric-
tion applies or if the system cannot clear lyde ter-
mine whe ther there striction applies. W
W ar ar ning when t
ning when t he maximum per
he maximum per missible speed is
missible speed is
ex
ex ceeded
ceeded
The system can warnyou if you unintentionally
ex ceed the maximum permissible speed. Todo
th is, you can specify in the multimedia system by
how much the maximum permissible speed can
be exceeded before a warning is issued. You can
specify whe ther thewa rning is tobe just a visual
wa rning or an acoustic one as well. Driving and parking
241
241

Se
Se
tting
tting Tr
Tra1c
a1c Sign Assist
Sign Assist
R
R eq
eq uir
uir ements:
ements:
R Onl
Only v
y v ehicles wit
ehicles wit h Dr
h Driving Assist
iving Assist ance P
ance Pack
ackag
age:
e:
Ac tive Distance Assist DISTRONIC and ECO
Assist must be acti vatedfo rth e automatic
adoption of speed limits.
Multimedia system: 4 © 5
Settings 5
Assistance
5 Traffic Sign Assist
A
A ctiv
ctiv ating or deactiv
ating or deactiv ating aut
ating automatic adop
omatic adop tion of
tion of
speed limits (onl
speed limits (onl y v
y vehicles wit
ehicles wit h Dr
h Driving Assist
iving Assist ance
ance
P
P ack
ack ag
age)
e) #
Select Adopt limit. #
Switch the function on or o..
The speed limits de tected byTra1c Sign
Assist are automatically adop tedby Active
Distance Assist DISTRONIC.
% If one of thefo llowing systems is activated,
th e de tected speed can be manually adop ted
as the speed limit:
R Active Distance Assist DISTRONIC
R Cruise control R
Variable limi ter
Fu rther information about Active Distance
Assist DISTRONIC: (/ page 228).
Displa
Displa ying det
ying det ect
ected
edtr
tra1c
a1c signs in t
signs in t he media dis-
he media dis-
play
play #
Select Display in head unit . #
Switch the function on or o..
Se
Se tting t
tting t he type of w
he type of w ar
arning
ning #
Select Visual & audible ,Visual orOff.
Se Se tting t tting t he w
he war
ar ning t
ning t hr
hreshold
eshold
This value de term ines the speed at which a warn-
ing is issued when exceeded. #
Select Warning threshold. #
Set the desired speed. Blind Spo
Blind Spo
t Assis
t Assist and At and A ctiv
ctive Blind Spo
e Blind Spo t Assis
t Assist witht with
e
e xit w
xit w ar
arning
ning F
F
unction of Blind Spo
unction of Blind Spo t Assis
t Assist and At and A ctiv
ctive Blind
e Blind
Spo
Spo t Assis
t Assist wit t with e
h exit w
xit w ar
arning
ning
Blind Spot Assist and Active Blind Spot Assist use
two lateral, rear-facing radar sensors tomonitor th
e area up to40 m behind and 3 m next toyour
ve hicle.
If a vehicle is de tected at speeds abo veappr ox-
imately 12 km/h and this vehicle subsequently
enters the monitoring range directly next toyour
ve hicle, thewa rning lamp in the outside mir ror
lights up red.
Pe rm anent status displ ayinthe inst rument clus-
te r:
R ¸ (gre y): sy stem is acti vated but inopera-
tive
R ¸ (gre en): system is activated and opera-
tional
If a vehicle is de tected close toyour vehicle and
yo u switch on the turn signal indicator in the cor-
re sponding direction, a double warning tone
sounds and there dwa rning lamp in the outside
mir ror 0ashes. If the turn signal indicator remains
switched on, all other de tected vehicles are indi-
cated only bythe 0ashing of there dwa rning
lamp.
If yo uove rtake a vehicle quickl y,no warning is
given. Driving and parking
243 243