MERCEDES-BENZ A-CLASS SALOON 2021 Owners Manual

U
U
ncoupling a tr
ncoupling a tr ailer
ailer &
W
WARNI NG
ARNI NGRisk of being crushed and
becoming trapped when uncoupling a
trailer
When uncoupling a trailer with an engaged
inertia-activated brake, your hand may
become trapped between theve hicle and the
trailer dr awbar. #
Do not uncouple trailers with an engaged
ove rrun brake. *
N
NOOTE
TE Damage during uncoupling with an
engaged overrun brake The
vehicle may be damaged if you uncouple
with an engaged overrun brake. #
Do not uncouple trailers with an engaged
ove rrun brake. #
Secure the trailer against rolling away. #
Disconnect the electrical connection between
th eve hicle and the trailer. #
Uncouple the trailer. #
Place the co ver cap on the ball head.
% T
Tr
railer
ailer s wit
s wit h LED lighting:
h LED lighting: aTer uncoupling the
traile r,switch theve hicle on and then o.
again. Bicy
Bicy
cle r
cle r ac
ack function
k function &
W
WARNING
ARNING Risk of an accident if the bicy-
cle rack is used incor rectly
The bicycle rack may become de tach ed from
th eve hicle in thefo llowing cases:
R the permissible load capacity of the trailer
hitch is exceeded.
R the bicycle rack is used incor rectl y.
R the bicycle rack is secured tothe ball neck
beneath the ball head.
Obser vethefo llowing foryo ur ow n sa fety and
th at of other road users:
R always adhere tothe permissible load
capacity of the trailer hitch. R
always obser vethe permissible rear axle
load of theto wing vehicle.
R use the bicycle rack only totransport bicy-
cles.
R always proper lysecure the bicycle rack by
attaching it tothe ball head.
R use only bicycle rack s appr ovedby
Mercedes-Benz.
R always obser vethe bicycle rack operating
instructions. *
N NOOTE TE Damage toor breakage of the trailer
hitch due tounsuitable or improper lyused
bicycle rack. #
Only use bicycle rack s appr ovedby
Mercedes-Benz prope rly as described
bel ow. *
N
NO
O TE
TE Increased risk of damage toprop-
erty due tofolded-out ball neck #
When the trailer is not coupled or the
bicycle rack is attached, fold in the ball 268
268
Driving and parking

neck or, in
the case of a fully electric
trailer hitch, retract the ball nec k. Depending on
the bicycle rack 's design, up to
th re e bicycles can be transpor ted on the bicycle
ra ck.
When mounted byattaching toball head 1,the
maximum load capacity is 75 kg. The maximum load capacity is calculated from
the
we ight of the bicycle rack and the bicycle rack
load.
Obser vethe no tes on driving with a roof load,
trailer or fully laden vehicle (/ page 163).
When using a bicycle rack , set the tyre pressure
fo r increased load on there ar axle of theve hicle.
Fu rther information on the tyre pressure can be
fo und in the tyre pressure table (/ page 365).
N
No ot tes on loading
es on loading
The lar gerth e distance between the load's centre
of grav ity and the ball head, thegr eater the load
on the trailer hitch.
Therefore, obser vethefo llowing no tes:
R mount heavy bicycles as close totheve hicle
as possible
R always distribute the load on the bicycle rack
as evenly as possible across theve hicle's lon-
gitudinal axis
Mercedes-Benz recommends removing all de tach-
able parts from bicycles (e.g. bask ets, ch ild seats,
re ch arge able batteries) before loading them onto
th e bicycle rack . This will impr ovethe aerody- namic
resis tance and centre of grav ity of the bicy-
cle rack.
Alw ays secure the bicycles toprev ent them from
moving around and check them at regular inter-
va ls to ensure that they are secure.
Do not use tarp aulins or other co vers. The driving
ch aracteristics and rear view may be impaired. In
addition, aerodynamic resis tance and the load on
th e trailer hitch will increase. Load distribution on
the bicycle rack
1 Vertical distance between centre of grav ity
and ball head Driving and parking
269
269

2
Horizontal distance between centre of grav ity
and ball head
3 The centre of grav ity is on theve hicle's cent re
axis
Obser vethefo llowing information when you are
loading the bicycle rack with up tothre e bicycles:
Loading t
Loading t he bicy
he bicycle r
cle rack
ack T
T
o
o t
tal w
al w eight
eight
of bicy
of bicy cle
cle
r
r ac
ac k and load
k and load Max. dist
Max. dist
ance
ance
1
1 Max. dist
Max. dist
ance
ance
2
2
Up to75 kg 420 mm 300 mm V
V
ehicle to
ehicle towing ins
wing ins tr
tr uctions
uctions
The vehicle is not suitable forth e use of tow bar
systems that are used for 0at towing or dinghy
to wing, forex ample. Attach ing and using tow bar
systems can result in damage totheve hicle.
When you are towing a vehicle with tow bar sys-
te ms, safe driving characteristics cann otbe guar-
anteed forth eto wing vehicle or theto we dve hicle.
The vehicle-trailer combination may swer vefrom
side toside. Obser
vethefo llowing information:
R Perm itted towing me thods (/ page 354)
R Plug-in h Plug-in h ybr ybrid:
id:permitted towing me thods
(/ page 355)
R The no tes on towing theve hicle with bo th
axles on thegr ound (/ page 356) 270
270
Driving and parking

N
N
o
ot
tes on t
es on t he ins
he instrtrument displa
ument displa y and on-board
y and on-board
com
com put
puter
er &
W
WARNING
ARNING Risk of accident if the inst ru-
ment display fails
If th e inst rument display has failed or is mal-
functioning, function restrictions in systems
re leva nt tosaf ety cann otbe de tected.
The operating saf ety of your vehicle may be
impaired. #
Drive on carefull y. #
Have theve hicle checked immediately at
a qu ali/ed specialist workshop. Plug-in h
Plug-in h
ybr
ybr id:
id: &
W
W ARNING
ARNING Risk of accident if the inst ru-
ment display fails
In theeve nt of a failure or malfunction of the
inst rument displa y,yo u will not recognise limi-
ta tions in the functions of systems releva nt to
saf ety. This may impair ope rating saf ety. #
Park theve hicle safely as soon as possi-
ble and notify a quali/ed specialist work-
shop. &
W
WARNING
ARNING Risk of distraction from infor-
mation systems and communications
equipment
If yo u operate information systems and com-
munication devices integ rated in theve hicle
when driving, you could be distracted from the
tra1c situation. This could also cause youto
lose control of theve hicle. #
Only operate this equipment when the
tra1c situation pe rmits. #
Ifyo u cannot be sure of this, stop the
ve hicle whilst paying attention toroad
and tra1c conditions and operate the
equipment with theve hicle stationar y. *
N NO
OTE
TE Mercedes-AMG vehicles #
Obser vethe no tes in the Supplement.
Yo u could otherwise failto recognise
dangers. Yo
u must obser vethe legal requ irements forthe
count ryin which you are cur rently driving when
ope rating the on-board computer.
The on-board computer sho wsonly display mes-
sages and warnings from speci/c systems on the
inst rument displa y.Yo u must therefore ensure
th at your vehicle is alw aysre liable.
If th e operating saf ety of your vehicle is impaired,
park theve hicle immediately and in accordance
with the tra1c conditions. Contact a quali/ed
specialist workshop. Instrument display and on-board computer
271
271

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

The on-board computer is ope
rated using the leT-
hand Touch Control and the leT-hand back/home
button.
When the on-board computer is being operated,
di.erent acoustic signals will sound as operating
fe edbac k,e.g. when the end of a list is reached or
when you are scrolling thro ugh a list.
The following menus are available:
R Assistance
R Telephone
R Navigation
R Trip
R Radio
R Media
R Styles & display
R Service
% You can /nd information about the possible
settings and selections on the menus in the
Digital Owner's Manual.
The menus can be called up from the menu bar
on the inst rument displa y. #
T
T o call up t o call up t he menu bar:
he menu bar: pressthe leT-hand
back button until the menu bar is displa yed.
% V
Vehicles wit
ehicles wit hout A
hout Activ
ctive Dist
e Dist ance Assis
ance Assist t
DIS
DIS TR
TRONIC:
ONIC: presstheò button tocall up
th e menu bar of the on-board computer. #
T
T o scr
o scr oll on t
oll on t he menu bar
he menu bar :
:swipe leT or right
on the leT-hand Touch Control. #
T
T o call up a menu, submenu or possible se
o call up a menu, submenu or possible se t-
t-
tings on t
tings on t he menu, or
he menu, or con/rm
con/rma selection or
a selection or
se
se tting:
tting: press the leT-hand Touch Control. #
T
T o scr
o scr oll t
oll thr
hrough display
ough display s or lis
s or lists on tts on the
he
menu, or select displa
menu, or select displa y cont
y content, a function,
ent, a function,
an entr
an entr y or a display
y or a display :
:swipe upwards or down-
wa rds on the leT-hand Touch Control. #
T
T o e
o e xit a submenu:
xit a submenu: pressthe leT-hand back
button.
Selecting t
Selecting t he head-up display
he head-up display #
T
T o switc
o switc h on t
h on the head-up display
he head-up display :
:switch on
th e head-up display via the multimedia system
or activate it on the menu bar byswiping
upwards on the leT-hand Touch Control.
The head-up display menu will be selected on
th e head-up displa y. #
T To switc
o switc h t
h t o t
o t he head-up display
he head-up display :
:press the
leT-hand Touch Control or swipe upwards on
th e leT-hand Touch Control. #
T
To se
o se t t
t the t
he t hr
hree displa
ee displa y r
y rang
ang es of t
es of t he head-up
he head-up
display
display :
:swipe upwards or down wards on the
leT-hand Touch Control.
F
F ull-scr
ull-scr een menus
een menus
V
V ehicles wit
ehicles wit h an ins
h an instrtrument displa
ument displa y in t
y in the wide-
he wide-
scr
scr een coc
een coc kpit:
kpit:thefo llowing menus can be
shown full-screen on the inst rument displa y:
R Assistance
R Trip
R Navigation #
Onthe cor responding menu, use the leT-hand
To uch Control toscroll tothe end of the list. #
Press the leT-hand Touch Control.
The selected menu will be displa yed full-
screen. 274
274
Inst
rument display and on-board computer

F
F
unction of t
unction of t he pow
he power met
er meter (plug-in h
er (plug-in h ybr
ybrid)
id) 1
Combustion engine and electric mo tor
switched o.
2 Position in the display range of there co vered
energy
3 End of the display range of there co vered
energy
4 End of the display range of the combined out-
put of thehy brid system The
following functions of the po wer me ter are
per form ed:
R The po wer me ter supports you in electric-only
mode and displa ys the output obtained from
th ehy brid system.
R Regenerated energy is sh own in area 1–
3.
R When the po wer me ter needle is at position
1, theve hicle is switched o.. The combus-
tion engine and the electric mo tor are
switched o..
R Pow errange 3–4 show sth e combined
output of thehy brid system. F
F
unction of t
unction of t he electr
he electric mot
ic motor pow
or pow erav
er availability
ailability
displa
displa y (plug-in h
y (plug-in h ybr
ybrid)
id) 1
Start of the POWER display range
2 End of the POWER display range
3 Maximum recuperated energy
4 Start of the display range of there cuperated
energy
5 Current state of charge ofthe high-voltage
battery
R Area 1-2 shows th e output in electric
mode or boost mode. The POWER display sup-
ports you in electric-only mode.
R Area 3-4 shows th ere cuperated energy. Instrument display and on-board computer
275 275

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