2018 MERCEDES-BENZ A-CLASS HATCHBACK Owners Manual

1
w Setsthete mp erature on the driver's
side
2 Vehicles without a stationary heater: _
sets the air distribution
Ve hicles with a stationary heater: tcalls
up the air conditioning menu
3 H Setsthe air flow or switches off climate
control 4
à Sets climate control toautomatic
mode (→ page143)
5 ¬ Defrosts the windscreen
6 ¤ Switches there ar wind owheater on or
off
7 g Switches air-recirculation mode on or
off (→ page144)
8 Á Switches the A/C function on or off
(→ page 142)
Switches residual heat on or
off(→ page144)
9 Vehicles without a stationary heater: 0
swit ches synchronisation on or off
(→ page 143)
Ve hicles with a stationary heater: &
swit ches thest ationary heater on or off
(→ page 145)
A w Setsthe front passenger side temp era‐
ture Operating
the clima tecont rol sy stem Switching clima
tecont rol on/off #
Toswitch on: setthe air flow toleve l 1 or
higher using theH button. #
Toswitch off: setthe air flow toleve l 0 using
th eH button.
% If climate control is switched off, the win‐
do ws may mist up more quickl y.Switch off
climate control only brie fly. Switching
the A/C function on or off via the
cont rol panel The A/C function heats, cools and dehumidifies
th
eve hicle's interior air. #
Press the¿Á button.
Switch off the A/C function only brief lyother‐
wise the windo wsmay mist up more quickl y.
Condensation may drip from the underside of
th eve hicle when cooling mode is active. This is
not a sign that there is a malfunction. 14 2
Climate cont rol

Calling up
the air conditioning menu Calling up
the air conditioning menu using
th e multimedia sy stem #
Select thete mp erature display at the lo wer
edge of the media displa y.
Calling up the air conditioning menu using
th e but ton on the control panel #
Press thet button on the control panel.
% The button on the control panel is not availa‐
ble on all equipment variants. In this case,
th e air conditioning menu can only be called
up using the multimedia sy stem. Ac
tivating/deactivating the A/C function
using the multimedia sy stem The A/C function heats, cools and dehumidifies
th
eve hicle's interior air. #
Call up the climate control menu
(→ page 143). #
Select A/C.
Depending on the pr evious status, the func‐
tion is activated or deactivated. Setting climate control
toautomatic mode In auto
matic mode, the set temp erature is con‐
trolled and maintained at a const ant levelby the
air suppl y. #
Press the à button. #
Toswitch tomanual mode: pressthe _
or à button.
In automatic mode, you can choose between five
dif fere nt air quantities using the H button.
Au tomatic mode is retained. Overview of air distribution settings
The symbols on
the display indicate which vents
th e air flow is being directed thro ugh:
¯ def
rost er and side air vents
P centre and side air
vents
O fo
ot we ll and side air vents
S centre, side and
foot we llve nts
a defros
ter,fo ot we ll and side air vents
_ all
vents b
defros
ter,middle and side air vents
W au
tomatic air distribution Setting
the air distribution #
Call up the air conditioning menu
(→ page 143). #
Toset the air distribution: select¯,
P orO. #
Set the air flow.
% Several air distribution options can be selec‐
te d at the same time, forex ample toset the
te mp erature/air conditioning forth e wind‐
screen and thefo ot we lls simultaneousl y. Ac
tivating/deactivating the climate control
syn chro nisation function via the control
panel Climate control can be set centrally using
the
synchronisation function. The temp erature and
air distribution setting forth e driver side is adop‐
te d automatically forth e front passenger side. #
Press the 0 button. Climate control
14 3

The synchronisation function is deactivated if
th
e settings for one of theot her climate zones
are changed. Ac
tivating/deactivating the climate control
syn chro nisation function using the multime‐
dia sy stem Climate control can be set centrally using
the
synchronisation function. The driver's settings
fo rte mp erature, air quantity and air distribution
are adop ted automatically for all clima tezones. #
Calling up the air conditioning menu
(→ page 143). #
Select SYNC.
Depending on the pr evious status, the func‐
tion is activated or deactivated. Demisting
the windo ws Wi
ndo wsmis ted up on the inside #
Press theà button. #
Ifth e windo wscontinue tomist up: press the
¬ button. Wi
ndo wsmis ted up on the outside #
Switch on the windscreen wipers. #
Press theà button. Switching air-recirculation mode on/off
#
Press theg button.
The interior air will be recirculated.
Air-reci rculation mode automatically swit ches to
fresh air mode af ter some time.
% If air-recirculation mode is switched on, the
windo wsmay mist up more quickl y.Switch
on ai r-re circulation mode only brie fly. Switches
there sidual heat on/off Re
quirements:
R The vehicle is par ked.
It is possible tomake use of there sidual heat
from the engine tocontinue heating or ventilat‐
ing the front compartment of theve hicle for
appr oximately 30 minutes, depending on the
te mp erature set. #
Toswitch on: presstheÁ button.
Re sidual heat is switched off automaticall y. St
ationary heater/ventilation St
ationary heater/stationary ventilation
function R The air inside theve hicle is heated or ventila‐
te dto the set temp erature.
R The air inside theve hicle cannot be cooled
down totemp eratures below the outside
te mp erature.
R Ifth e outside temp erature changes, ventila‐
tion mode au tomatical lyswitches toheating
mode or heating mode automatically
switches toventilation mode.
The stationary heater and theex haust gas outlet
are situated in front of theright-hand front
wheel. 14 4
Climate cont rol

Switching
thest ationary heater/stationary
ve ntilation on/off via the control panel &
DANG ER Risk of fata l injury due topoi‐
sonous exhaust gases
If th eta ilpipe is bloc ked or suf ficient ventila‐
tion is not possible, poisonous exhaust gases
such as carbon monoxide may enter theve hi‐
cle. This is the case in enclosed spaces or if
th eve hicle getsst uck in sn ow,fo rex ample. #
Alw ays switch thest ationary heater off
in enclosed spaces without an air
ex traction sy stems, e.g. in garage s. #
Keep theta ilpipe and the area around
th eve hicle free from snow when the
engine or thest ationary heater are run‐
ning. #
Open a window on the windward side of
th eve hicle toensure an adequate sup‐
ply of fresh air. &
WARNING Risk offire due tohot station‐
ary heater components
When thest ationary heater is swit ched on,
parts of theve hicle can become very hot,
e.g. thest ationary heater exhaust sy stem.
Flammable materials such as lea ves, grass or
twigs may ignite if they come into contact
wi th:
R hot parts of thest ationary heater exhaust
sy stem
R theex haust gas itself #
When thest ationary heater is swit ched
on, make sure that:
R hot vehicle parts do not come into
contact with flammable materials.
R theex haust gas can flow out of the
st ationary heater tailpipe unhin‐
dered.
R theex haust gas does not come into
contact with flammable materials. *
NO
TEBattery discharge caused bysta‐
tionary heater or stationary ventilation
operation Ope
rating thest ationary heater or stationary
ve ntilation drains the batter y. #
After heating or ventilating theve hicle
twice, drive for a longer period of time. Re
quirements:
R The fuel tank has been filled toat least Õ. Climate control
14 5

#
Set the desired temp erature using thew
button. #
Press button 1.
The red or blue indicator lamp on button 1
lights up or goes out.
The colours of the indicator lamp ha vethefo l‐
lowing meaning:
R Blue: stationary ventilation is switched on. R
Red:stationary heater is swit ched on.
R Yello w: departure time is preselected.
The stationary heater/ stationary ventilation
switches off au tomatical lyafte r 50 minutes.
Operation using the app: thest ationary
heater/ ventilation can also be operated via the
Mercedes me connect app. Further information
can be found in the separate Owner's Manual
under http://manuals.daimler.com/baix/cars/
connectme/en_GB/index.html.
Setting thest ationary heater/stationary ven‐
tilation via the multimedia sy stem #
Calling up the air conditioning menu
(→ page 143). #
Select Auxiliary heating.
Selecting the departu retime #
Select the time TIME A: XX, TIME B: XXor
TIME C: XX.
Setting the departu retime #
Select the time TIME A: XX, TIME B: XXor
TIME C: XX. #
Select the pen beside the time. #
Set a time.
Setting thest ationary heater/stationary ven‐
tilation via remo tecont rol
Re quirements:
R The fuel tank has been filled toat least Õ.
Swit ching on immediately 14 6
Climate cont rol

#
Press and hold theu button.
Setting the departu retime #
Brie fly press swit chu . #
Press the, or. button repeatedly
until the time tobe changed appears in the
displa y. #
Press theu and^ buttons simultane‐
ousl y.
The Îsymbol in there mo tecontrol displ ay
fl ashes. #
Press the, and. buttons toset the
desired departure time. #
Press theu and^ buttons simultane‐
ousl y.
The new departure time is stored.
Up tothre e departure times can be stored. #
Toactivate the departu retime: select the
desired departure time and press and hold
th eu button.
The Ísymbol, the departure time and,
depending on the selected departure time,
th e letter A, BorCappear on the displa y. #
Todeactivate the departure time: select
th e desired departure time and press and
hold the^ button.
OFF appears on the displa y. #
Tocheck thest atus of thest ationary
heater: briefly press theu button.
Switching off immediately #
Press and hold the^ button.
Overview of there mo tecont rol displa ys(sta‐
tiona ryheater/stationary ventilation) 1
Stationary ventilation switched on
2 Stationary heater swit ched on 3
Selected departure time
4 Remaining time forth est ationary heater/
st ationary ventilation (in minu tes)
5 Stationary heater/ stationary ventilation
acti ve
6 Departure time acti vated
7 Signal stre ngth
Fu rther possible displa ys:
R Time: activated departure time.
R Zero minutes: theru nning time forth est a‐
tionary heater is inc reased, as the engine has
not yetre ached operating temp erature when
it is star ted.
R OFF: thest ationary heater/ stationary venti‐
lation is switched off. Clima
tecontrol 147

Re
placing the remo tecont rol bat tery (sta‐
tiona ryheater) &
DANG ER Serious damage tohealth
caused byswallowing batteries
Batteries contain toxic and cor rosive sub‐
st ances. Swallowing bat teries may cause
serious damage tohealth.
There is a risk of fata l injur y. #
Keep batteries out of there ach of chil‐
dren. #
If batteries are swallo wed, seek medical
attention immediately. +
ENVIRONMEN
TALNO TEEnvironmental
dama gedue toimproper disposal of bat‐
te ries Batteries conta
intoxic and cor ro‐
sive subs tances. #
Ta
ke dischar ged batteries to a
qu alified specialist workshop or to a
collection point for used batteries. Re
quirements:
R a CR2450 lithium battery #
Press a pointed object into recess 1. #
Slide battery co ver2 backwards in the
direction of the ar row. #
Insert new battery 3with the lettering
fa cing up wards. #
Slide battery co ver2 inthe opposite direc‐
tion tothe ar row onto there mo tecontrol
until the battery co ver engages. 14 8
Climate cont rol

Problems with
there mo tecont rolfo r the stationary heater/stationary ventilation Problem
Possible causes/consequences and M
MSolutions
FA IL¨ The signal transmission between
the transmit ter and theve hicle is faulty. #
Chan geyour position in relation totheve hicle, moving closer if necessar y.
FA IL Thestar ter battery is not suf ficiently charge d. #
Char gethest ar ter batter y.
The fuel tank content is below there ser vefuel le vel. #
Refuel at the nearest filling station.
FA IL¯ The
stationary heater is malfunctioning. #
Have thest ationary heater checked at a qualified specialist workshop. Air
vents Ad
justing the front air vents &
WARNING ‑ Risk of bu rns/frostbite due
to not maintaining a su fficient dis tance
to the air vents
Ve ry hot or very cold air can flow from the air
ve nts. This could
result in burns or frostbite in the
immediate vicinity of the air vents. #
Alw ays ensure that all vehicle occu‐
pants maintain a suf ficient di stance to
th e air vents. #
If necessa ry,re direct the air flow to
ano ther area of theve hicle interior. To
guarantee the fresh air supply thro ugh the air
ve nts into theve hicle interior, comply with the
fo llowing:
R Alw ayske ep theve nts and theve ntilation
grille in theve hicle interior free.
R Keep the air inlet free of deposits
(→ page 427). Climate control
14 9