2021 MERCEDES-BENZ A-CLASS SALOON cruise control

Ov
Ov
er
ervie
vie w of ins
w of ins tr
trument display
ument display 1
LeT display area of the inst rument display
(e xamp le: speedome ter): speedome ter /
time / date / trip computer From startand
From reset /range / audio
The segments on the speedome ter indicate
th e statuses of thefo llowing systems: cruise
control/limiter/Active Distance Assist
DISTRONIC 2
Outside temp erature
3 Digital speedome ter
4 Time
5 Right display area of the inst rument display
(e xamp le:tach ome ter): tach ome ter / average
fuel consum ption / ECO display /naviga-
tion / G-me ter / assistant display / po werme
ter / po werav ailability displ ayofthe elec-
tric mo tor (equipment-dependent)
The fuel supply will be inter rupted toprotect
th e engine when there d mark on therev
counter (o verrev ving range) is reached.
6 Index points
These show the selected display or menu con-
te nt. 272 272
Instrument display and on-board computer

7
Coolant temp erature display
During normal operation, the coolant temp er-
ature display is permitted torise to120°C.
8 Selected drive prog ram
9 Selected transmission position
A Centre display area of the inst rument display
(e xamp le: standard display for trip): Assis-
ta nce / Telephone / Navigation / Trip /
Media / Radio / Styles and displa ys /
Service / Powe r me ter (equipment-depend-
ent)
B Fuel le vel, fuel /ller 0ap location indicator,
ra nge Ov
Ov
er
ervie
vie w of butt
w of butt ons on t
ons on the st
he steer
eering wheel
ing wheel 1
P Back/Home button (p ress and hold),
on-board computer
2 Touch Control, on-board computer
3 Control panel for cruise control/limiter or
Ac tive Distance Assist DISTRONIC
4 Control panel forth e MBUX multimedia sys-
te m (/ page 281) £
LINGU ATRO NIC
5 ò Tocall up the home screen of the multi-
media system
6 Touch Control multimedia system
7 % Back button (multimedia system)
8 Brightness control toadjust the lighting in the
Instrument Displ ayand in the control ele-
ments of theve hicle interior Oper
Oper
ating t
ating t he on-boar
he on-boar d com
d comput
puter
er
Obser vethe legal requ irements forth e country in
which you are cur rently driving when ope rating
th e on-board computer. Instrument display and on-board computer
273
273

R
From point 3,the maximum recuperated
energy has been reached.
R The cur rent state of charge of high-voltage
battery 5is displa yed. Displa
Displa
ying t
ying the pow
he pow er met
er meter (plug-in h
er (plug-in h ybr
ybrid)
id)
On-board computer: 4 Content #
Select Power meter. Ov
Ov
er
ervie
vie w of display
w of display s in t
s in the ins
he ins tr
trument display
ument display
Displa yson the inst rument displa y:
u Active Parking Assist (/ page 260)
é Parking Assist PARKTRONIC deactivated
(/ page 258)
h Cruise control (/ page 223)
È Limiter (/ page 223)
ç Active Distance Assist DISTRONIC
(/ page 226)
æ Active Brake Assist (/ page 235) à
Active Steering Assist (/ page 232)
à Active Lane Keeping Assist (/ page 246)
ò Sound generator inoperative (/ page 415)
è ECO start/stop function (/ page 166)
ë HOLD function (/ page 219)
_ Adaptive Highbeam Assist (/ page 135)
Ad aptive Highbeam Assist Plus
(/ page 136)
ð Maximum permissible speed exceeded (for
cer tain countries only)
V
V ehicles wit
ehicles wit h Speed Limit Assist:
h Speed Limit Assist: detected
instructions and tra1c signs (/ page 240).
V
V ehicles wit
ehicles wit h
hTr
Tra1c
a1c Sign Assist:
Sign Assist: detected instruc-
tions and tra1c signs (/ page 241). Head-up display
Head-up display
F
F
unction of t
unction of t he head-up display
he head-up display *
N
NOOTE
TE Mercedes-AMG vehicles #
Obser vethe no tes in the Supplement.
Yo u could otherwise failto recognise
dangers. The head-up display projects
thefo llowing infor-
mation into the driver's /eld of vision abo vethe
cockpit, forex ample:
R The vehicle speed
R Information from the navigation system
R Information from the driving systems and driv-
ing saf ety sy stems
R Some warning messages
Depending on theve hicle's equipment, di.erent
content can be shown in theth re e areas of the
head-up displ ay (/page 277). 276
276
Inst
rument display and on-board computer

Displa
Displa
y cont
y content
ent 1
Navigation instructions
2 Current speed
3 Detected instructions and tra1c signs
4 Set speed in the driving system (e.g. cruise
control)
Syst
Syst em limits
em limits
The visibility of the displa yswill be a.ected bythe
fo llowing conditions:
R Seat position
R Image position setting
R Light conditions R
Wetro ad sur face
R Objects on the display co ver
R Polarisation in sunglasses
% Inextreme sunlight, sections of the display
may appear washed out. You can cor rect this
by deactivating and reactivating the head-up
displa y. Se
Se
tting t
tting t he head-up displa
he head-up displa y using t
y using the on-board
he on-board
com
com put
puter
er On-board co
mputer:
4 HEAD-UP DISPLAY
The following head-up display settings or displa ys
can be selected or shown:
R Position
R Brightness
R Messages
R Assis tance status
R Telephone
R Audio
R LINGU ATRO NIC #
T
To select t
o select t he Se
he Settings menu:
ttings menu: swipetotheright
on the leT-hand Touch Control.
The Settings menu 5will be selected. #
T
To call up t
o call up t he Se
he Settings menu:
ttings menu: pressthe leT-
hand Touch Control. #
T
To adjus
o adjust t t the position:
he position: swipe upwards or
down wards on the leT-hand Touch Control. #
T To adjus o adjust t t the br
he br ightness:
ightness: swipetothe leT or
ri ght on the leT-hand Touch Control.
Se
Se tting messag
tting messag es, assist
es, assistance st
ance status, t
atus, telephone,
elephone,
audio and LIN
audio and LIN GUA
GUATR
TRONIC
ONIC #
Press the leT-hand Touch Control.
The list of setting options will be displa yed. #
Swipe upwards or down wards on the leT-hand
To uch Control and select a setting bypressing
th e leT-hand Touch Control. Instrument display and on-board computer
277
277

Selecting what t
Selecting what t
he head-up displa
he head-up displa y shows
y sho ws (Example)
1
Switching the head-up display on/o.
2 LeT display area
Navigation system
Av erage consum ption
G-me ter
3 Central display area
Speedome ter
Set speed in the driver assistance system,
e.g. cruise control
Wa rnings from driver assistance systems, e.g.
distance warning 4
Right display area
Tra1c Sign Assist
Assis tant display
5 Con/guring settings
6 Indexpoints
Display areas 2to4 that are not requ ired can
be hidden.
% In audio mode, the station name or track will
be shown temp orarily when the audio source
is being actively operated. In addition, the lat-
est calls will be displa yed when thete lephone
list on the inst rument display is actively oper-
ated. #
Swipe upwards or down wards on the leT-hand
To uch Control. Switc Switc
hing t
hing t he head-up displa
he head-up displa y
y on/o.
on/o. via t
via the mul-
he mul-
timedia syst
timedia syst em
em Multimedia system:
4 © 5
Settings 5
Quick access #
Select HUD.
The head-up-display is activated. 278
278
Instrument display and on-board computer

Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
é
ATTENTION ASSIST inoper-
ative *A
TTENTION ASSIST is malfunctioning. #
Consult a quali/ed speciali stwo rkshop.
é
ATTENTION ASSIST: Take a
break! *A
TTENTION ASSIST has de tected fatigue or an increasing lack of concentration on the part of the driver
(/ page 221). #
If necessar y,take a break.
h
- - -km/h *C
ruise control cannot be activated as not all activation conditions are ful/lled. #
Obser vethe activation conditions for cruise control (/ page 224).
Cruise control inoperative *Cruise control is malfunctioning. #
Consult a quali/ed specialist workshop.
Cruise control and Limiter
inoperative *C
ruise control and the limiter are malfunctioning. #
Consult a quali/ed specialist workshop. 440 440
Displ
aymessages and warning/indicator lamps

Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
Cruise control off *Cruise control has been deactivated.
If th ere is an additional warning tone, cruise cont rol has been deactivated automatically (/ page 223).
È
- - -km/h *T
he limi ter can temp orarily not be engaged. Once the cause of the problem is no longer present, the system will be
av ailable again.
Limiter passive *Ifyo u depress the accelerator pedal be yond the pressure point (kickdown), the limiter is switched topassive mode
(/ page 224).
Limiter inoperative *The limi ter is malfunctioning. #
Consult a quali/ed specialist workshop.
ç
- - - km/h *A
ctive Dis tance Assist DISTRONIC cannot be activated as not all activation conditions are ful/lled. #
Comply with the activation conditions of Active Distance Assist DISTRONIC (/ page 228).
ç suspended *I
fyo u depress the accelerator pedal be yond the setting of Active Distance Assist DISTRONIC, the system will switch to
passive mode (/ page 226). Display messages and
warning/indicator lamps
441
441

Apply brake
toselect D or R ...................430
Apply brake toselect R .......................... 430
Au xiliary battery malfunction (red dis-
play message) ....................................... .434
Au xiliary battery malfunction (white
displ aymessage) .................................... 434
Beginning emer gency stop..................... 444
Blind Spot Assist cur rently una vailable
See Owner's Manual.............................. 445
Blind Spot Assist inoperative.................. 446
Blind Spot Assist not available when
to wing a trailer See Owner's Manual ...... 446
Cann otstart engine See Owner's
Manual................................................. .427
Charging fault Please change charging
me thod See Owner's Manual .................416
Charging me thod cur rently una vaila-
ble Please try again or change charg-
ing me thod............................................ 416 Check brake pads See Owner's Man-
ual........................................................
.439
Check tyre pressures then restart Run
Flat Indicator......................................... 462
Clutch overheated Avoid pulling away
until thewa rning goes out...................... 433
Cruise control and Limiter inoperative.... 440
Cruise control inoperative...................... 440
Cruise control o.................................... 441
Depress clutch fully tostart engine........ 433
Device de tected at diagnostics con-
nection See Owner's Manual................. .456
Drive system Malfunction Stop Switch
engine o............................................... 429
Drive system Malfunction Visit work-
shop ...................................................... 429
Fr ont-passenger airbag disabled See
Owner's Manual .................................... .404
Fr ont-passenger airbag enabled See
Owner's Manual .................................... .405 Hazard
warning lamps malfunctioning .... 412
Head-up display cur rently una vailable
See Owner's Manual.............................. 422
Head-up display inoperative ...................423
Limiter inoperative................................. 441
Limiter passive....................................... 441
N permanently active Risk of vehicle
ro lling....................................................4 31
Not possible tounlock charging cable
See Owner's Manual.............................. 415
Only elect ric drive available Power
limited................................................... 416
Only select Park (P) when vehicle is
stationary.............................................. 430
Pa rking Assist and PARKTRONIC inop-
erative See Owner's Manual................... 450
Pa rking lock inoperative Apply the
parking brake ........................................ .432
Place theke y in the mar ked space
See Owner's Manual.............................. 408 Index
495 495