2020 MERCEDES-BENZ GLA air condition

!
When
Active Distance AssistDISTRONIC
or the HOLD function isactivated, thevehi-
cle brakes automaticall yin certain situa-
tions.
To avoid damage tothe vehicle, deactivate
Act ive Distance AssistDISTRONIC andthe
HOLD function inthe followi ngorsimila rsit-
uations:
R when towing thevehicle
R in the carwash
Act ive Distance AssistDISTRONIC canneither
reduce therisk ofan accident ifyou failto
adap tyour driving style,noroverride thelaws
of physics. Active Distance AssistDISTRONIC
cannot takeintoaccount road,weather ortraf-
fic conditions. Active Distance Assist
DISTRONIC isonly anaid. You areresponsible
for the distance tothe vehicle infront ,for
vehicle speed,forbraking ingood timeandfor
staying inyour lane.
Do not use Active Distance AssistDISTRONIC:
R In road andtraffic conditions whichdonot
allow youtomaintain aconst antspeed, e.g.
in heavy traffic oron winding roads
R On slippe ryroad surfaces. Brakingoraccel-
erating couldcause thedrive wheels tolose
traction andthevehicle couldthenskid
R In poor visibil ity,e.g. due tofog, heavy rain
or snow
Act ive Distance AssistDISTRONIC maynot
detect narrow vehicles drivinginfront ,e.g.
motorcycles, orvehicles drivinginastaggered
formation.
In particular, thedetection ofobstacles canbe
impaired if:
R There isdirt onthe sensors oranything else
covering thesensors
R There issnow orheavy rain
R There isinterferenc eby other radarsources
R There arestrong radarreflections, forexam-
ple inparking garages
If Act ive Distance AssistDISTRONIC nolonger
detects avehicle infront ,Distance Pilot
DISTRONIC mayunexpectedly accelerateto
the speed stored. This
speed may:
R Be too high ifyou aredriving inaturning
lane oran exit lane
R Be sohigh when driving inthe right-hand
lane thatyouovertake vehiclesinthe left-
hand lane
R Be sohigh inthe left lane thatyoupass
vehicles drivingonthe right
If there isachange ofdrivers, advisethenew
driver ofthe speed stored.
Cruise control lever 0043
Tostore thecurrent speedorahigher
speed
0044 Tostore thecurrent speedoralower
speed
0087 Todeactivate Active Distance Assist
DISTRONIC
0085 Tostore thecurrent speedorcalls upthe
last stored speed
0083 Toset aspecified minimum distance
Activating ActiveDistance Assist
DISTRONIC Activation
conditions
! When
Active Distance AssistDISTRONIC
or the HOLD function isactivated, thevehi-
cle brakes automaticall yin certain situa-
tions.
To avoid damage tothe vehicle, deactivate
Act ive Distance AssistDISTRONIC andthe
HOLD function inthe followi ngorsimila rsit-
uations:
R when towing thevehicle
R in the carwash 160
Driving
systemsDriving andparking

still
detects increasing lapsesinconcen tra-
tion, youwillbewarned againafter 15minutes
at the earliest. Thiswillonly happen ifATTEN-
TION ASSISTstill detects typicalindicators of
fatigue orincreasing lapsesinconcen tration.
Vehicles withtheCOMAND multimedia
system: ifawarning isoutput inthe multi-
function display,aservice stationsearchis
performed inthe multimedia system.Youcan
select aservice stationandnavigation tothis
service stationwillthen begin. Thisfunction
can beactivated ordeactivated inthe multi-
media system; seetheDigital Operator's Man-
ual . Lane
Tracking package
General notes The
Lane Tracking packageconsistsofBlind
Spot Assist (Ypage 185)andLane Keeping
Assist (Ypage 186).
Blind SpotAssis t General
notes
Blind SpotAssist monitors theareas oneither
side ofthe vehicle thatarenot visible tothe
driver withtwolateral, rear-facing radarsen-
sors. Awarning displayin the exterior mirrors
draws yourattent iontovehicles detected in
the monitored area.Ifyou then switch onthe
corresponding turnsignal tochange lane,you
will also receive anoptical andaudiblewarn-
ing.
Blind SpotAssist supports youfrom aspeed of
approximately 20mph (30km/h).
Importa ntsafety notes G
WARNING
Blind SpotAssist doesnotreact to:
R vehicles overtaken tooclosely onthe side,
placing theminthe blind spotarea
R vehicles whichapproach withalarge
speed differential andovertake yourvehi-
cle
As aresult, BlindSpotAssist maynotgive
warnings insuch situations. Thereisarisk
of an accident. Always
observe thetraffic conditions care-
fully ,and maintain asafe lateral distance.
Blind SpotAssist isonly anaid. Itmay failto
detect somevehicles andisno substitute for
attent ivedriving. Alwaysensurethatthere is
sufficient distancetothe side forother road
users andobstacles.
i USA
only:
This device hasbeen approved bythe FCC
as a"Vehicul arRada rSystem". Theradar
sensor isintended foruse inan automotive
radar system only.Removing, tampering
with, oraltering thedevice willvoid anywar-
ranties, andisnot permitted bythe FCC. Do
not tamper with,alter, oruse inany non-
approved way.
Any unauthorized modificationtothis device
could voidtheuser’s authority tooperate
the equip ment.
Rada rsenso rs
The radar sensors forBlind SpotAssist are
integrated intotherear bumper. Makesure
that thebumpers arefree from dirt,iceor
slush. Thesensors mustnotbecovered, for
example bycycle racks oroverhanging loads.
Following asevere impact orinthe event of
damage tothe bumpers, havethefunction of
the radar sensors checked ataqual ified spe-
cialist workshop. BlindSpotAssist maynolon-
ger work properly.
Monitoring rangeofthe senso rs
In particular, thedetection ofobstacles canbe
impaired if:
R there isdirt onthe sensors oranything else
covering thesensors
R there ispoor visibil ity,e.g. due tofog, heavy
rain orsnow
R anarrow vehicle traveling infront ,e.g. a
motorbike orbicycle
R the road hasvery wide lanes
R the road hasnarrow lanes
R you arenot driving inthe middle ofthe lane
R there arebarriers orother roadboundarie s
Vehicles inthe monitoring rangearethen not
indicated.
Blind SpotAssist monitors thearea upto10 ft
(3 m) behind yourvehicle anddirectly nextto
it. Driving
systems
185Drivingandparking Z

Safety
systems Warning/
indicator
lamp 00510051
Signal type
Possible causes/co nsequences and0050 0050
Solutions 00C6
0051
The yellow brakesystem warning lamplights upwhile theengine isrunning.
The brake system ismalfunction ing.
G WARNING
The braking characterist icsmay beaffected.
There isarisk ofan accident.
X Drive ontaking extracare.
X Visit aquali fiedspecialist workshop immediately. 0027004D
0051
0027 (USAonly), 004D(Canada only):thered brake system warning lampis
lit while theengine isrunning. Awarning tonealsosounds.
G WARNING
The brake boosting effectismalfunction ingand thebraking characterist icsmay
be affected.
There isarisk ofan accident.
X Pull over andstop thevehicle safelyassoon aspossible, payingatten tionto
road andtraffic condition s.Do not cont inue driving underanycircumst ances.
X Secure thevehicle against rollingaway(Ypage 145).
X Consult aquali fiedspecialist workshop.
X Observe theadditional displaymessages inthe multifunct iondisplay . 0027004D
0051
0027 (USAonly), 004D(Canada only):thered brake system warning lampis
lit while theengine isrunning. Awarning tonealsosounds.
There isnot enough brakefluidinthe brake fluidreservoir.
G WARNING
The braking effectmaybeimpaired.
There isarisk ofan accident.
X Pull over andstop thevehicle safelyassoon aspossible, payingatten tionto
road andtraffic condition s.Do not cont inue driving underanycircumst ances.
X Secure thevehicle against rollingaway(Ypage 145).
X Do not add brake fluid.Adding morewillnotcorrect themalfunction .
X Consult aquali fiedspecialist workshop.
X Observe theadditional displaymessages inthe multifunct iondisplay . War
ning andindicator lampsin the instrum entcluster
233On-board computerand displays Z

Warning/
indic ator
lamp 00510051
Sign altype
Poss iblecause s/cons equen cesand 0050 0050
Sol utions 00AC
0051
The redcoola ntwar ning lamp comes onwhi lethe engine isrunning.
The coola ntleve lis too low.
If the coola ntleve lis correct, theairflowtothe engine radiator may beblocked
or the electric engineradiator fanmay bedefective .
The coola ntistoo hotand theengine isno longer being coole dsuffi ciently .
X Observe theadditiona ldisp laymessa gesinthe multi function display.
X Pul lover andstop thevehicl esafel yand switch offthe engine, paying atten-
tion toroad andtraffic conditions.
X Secure thevehicl eaga inst rolling awa y(Y pag e145).
X Leave thevehicl eand keep asafe dista ncefrom thevehicl euntil theengine
has coole ddow n.
X Che ckthe coola ntleve land add coola nt,obser vingthewarni ngnotes
(Y pag e277) .
X Ifyou have toadd coola ntfrequ ently, havetheengine coolingsystem
checked.
X Make surethattheairsup plytothe engine radiator isnot blocked ,e.g. by
snow, slush orice.
X Do not start theengine againuntil thecoola nttempera tureisbel ow 248 ‡
(120 †).Otherwi se,the engine couldbe dama ged.
X Drive tothe neares tqua lified speci alist worksho p.
X Avoid heavyloa dson the engine asyou doso, e.g. drivinginmountai nouster-
rain andstop-and-go traffic. 00AC
0051
The redcoola ntwar ning lamp comes onwhi lethe engine isrunning. Awarn-
ing tone alsosound s.
The coola nttempera turehasexceede d248 ‡(120 †).The airflowtothe
engine radiator may beblocked orthe coola ntleve lmay betoo low.
G WARNING
The engine isnot being coole dsuffi ciently andmay bedama ged.
Do not drive when yourengine isoverhe ated.Thiscancaus esome fluidswhi ch
may have leaked into theengine compartment tocatch fire.
Steam fromtheoverhe atedengine canalsocaus eserio usburns whichcan
occur justbyopeni ngthe hood.
There isarisk ofinjury .
X Observe theadditiona ldisp laymessa gesinthe multi function display.
X Pul lover andstop thevehicl esafel yand switch offthe engine, paying atten-
tion toroad andtraffic conditions.
X Secure thevehicl eaga inst rolling awa y(Y pag e145) .
X Leave thevehicl eand keep asafe dista ncefrom thevehicl euntil theengine
has coole ddow n.
X Che ckthe coola ntleve land add coola nt,obser vingthewarni ngnotes
(Y pag e277).
X Ifyou have toadd coola ntfrequ ently, havetheengine coolingsystem
checked. 240
Warning
andindic atorlamps inthe instrum entclusterOn-bo ardcomput erand displays

These
notesalso apply tolight alloy wheels
with aclear mattefinish.
Use only insect remover andcarshampoo
from therange ofcare products approved by
Mercedes- Benz.
Cleaning thedecorative film !
The
following mayhave aneffect onthe
service lifeand color ofdecorative film:
R sunlight
R temperat ure,e.g.hot-airfan
R weather conditions
R ston eimpacts anddirt
R chemical cleaningagents
R greasy substances
! Do
not use anytypes ofpolish onmatt
decorative film.Polishing surfacescovered
with filmgives itashiny finish.
! Do
not treat mattorstruct ureddecorative
film with wax. Thismay lead tomarks that
cann otbe removed.
Observe thenotesinthe section onthe care
and treatm entofmatte paintwork
(Y page 281), these notesalso apply tomatte
decorative film.
To clean, useplenty ofwater andamild clean-
ing agent without additional orabrasive prod-
ucts, e.g.useacar shampoo approved for
Mercedes- Benz.
X Dry vehicles coveredwithfilmusing asoft,
absorbent clothafterevery wash.
Water marks couldotherwise form.
Scr atches, corrosiv edeposits, areasaffected
by corrosion anddamage causedbyinade-
quate carecannotalway sbe completely
repaired. Insuch cases, visitaqualified spe-
cialist workshop.
X Remove dirtimmediately, wherepossible,
while avoiding rubbingtoohard.
The decorative filmmay beirreparably dam-
aged.
X Soak insect remains withinsect remover
and rinse offthe treated areasafterwards.
X Soak birddroppings withwater andrinse off
the treated areasafterwards.
The Paint Cleaner cleaning product, whichhas
been approved andrecomm endedby
Mercedes- Benz,should beused when dirthas penetr
atedthedecorative filmsurface orthe
decorative filmhasbecome dull.
The manufact urercanprovide youwith infor-
mation onspecial careandcleaning products.
Laminated surfacesmayexhibit optical differ-
ences tosurfaces whichwerenotprotec tedby
a decorative filmwhen thedecorative filmis
removed.
i Have
workorrepairs ondecorative film
carried outataqualified specialist work-
shop. Mercedes- Benzrecomm endsthatyou
use anauthorized Mercedes-BenzCenter for
this purpose. Cleaning
thevehicle parts
Cleaning thewheels G
WARNIN
G
The water jetfrom acircular jetnozz le(dirt
blasters) cancause invisible exteriordam-
age tothe tires orchassis compon ents.
Component sdamaged inthis way may fail
unexpect edly.There isarisk ofan accident .
Do not use power washers withcircular jet
noz zles toclean thevehicle. Havedamaged
tires orchassis compon entsreplaced imme-
diately.
! Do
not use acidic wheel cleaning products
to remove brakedust.Thiscould damage
wheel boltsandbrake compon ents.
! Do
not park yourvehicle foralong period
of time directly aftercleaning, particularly
after cleaning thewheel rimwith wheel
cleaner. Wheelcleaner canlead tothe
increased corrosionofthe brake discsand
pads. Therefore, driveforafew minutes
after cleaning. Byheating upthe brakes, the
brake discsandpads dry.Thevehicle can
then beparked foralong period oftime.
Cleaning thewindows G
WARNIN
G
You could become trappedbythe wind-
shield wipers ifthey start moving while
cleaning thewindshield orwiper blades.
There isarisk ofinjury. 282
CareMaintenance
andcare

When
youhave mount edthe M+S tires:
X Check thetire pressures (Ypage 308).
X Restart thetire pressure monitor(USA only)
(Y page 315).
X Restart thetire pressure losswarning sys-
tem (Canada) (Ypage 312) Snow
chains G
WARNIN
G
If snow chains aremount edon the rear
wheels, thesnow chains couldcause abra-
sion tothe vehicle bodyortochassis com-
ponen ts.This could cause damage tothe
vehicle orthe tires. There isarisk ofan
accident .
To avoid hazardous situations:
R never mount snowchains onthe rear
wheels
R only mount snowchains inpairs onthe
fron twheels.
! On
some tiresizes there isnot enough
space forsnow chains. Toavoid damage to
the vehicle ortires, observe the"Wheel and
tire combin ations" sectionunder "Tiresand
wheels".
For safety reasons, Mercedes- Benzrecom-
mends thatyouonly usesnow chains that
have been specially approved foryour vehicle
by Mercedes- Benz,or are ofacorr esponding
standard ofquality. Formore inform ation,
please contactaqualified specialist workshop.
If you inten dto mount snowchains, please
bear thefollowing pointsinmind:
R Sno wchains maynotbemount edon all
wheel/tire combinations.Permissible
wheel-tire combinations(Ypage 330).
R Only usesnow chains whendriving onroads
complet elycovered bysnow. Remove the
snow chains assoon aspossible whenyou
come toaroad thatisnot snow-c overed.
R Local regulations mayrestrictthe use of
snow chains. Observe theappropriate regu-
lations ifyou wish tomount snowchains. R
Do not exceed themaximum permissible
speed of30mph (50km/ h).
R Ifsnow chains areinstalled, youcann otuse
Act ive Parking Assist(Ypage 176).
You may wish todeactivat eES P®
when pulling
away withsnow chains installed .This allows
the wheels tospin inacont rolled manner,ach-
ieving increased propulsive force(cutt ing
action ).
R Deact ivateESP®
(all vehicles except
Mercedes- AMGvehicles) (Ypage 64)
R Deact ivateESP®
(Mercedes- AMGvehicles)
(Y page 65)
Inf ormation aboutdriving withanemergen cy
spare wheel (Ypage 331). Tir
epr essure Tir
epr essure specifications
Impor tantsafety notes G
WARNIN
G
Underin flatedoroverinf latedtirespose the
following risks:
R the tires mayburst, especially asthe load
and vehicle speedincrease.
R the tires maywear exces sively and/or
unevenly, whichmaygreatly impairtire
trac tion.
R the driving charact eristics,as well as
steerin gand braking, maybegreatly
impaired.
There isarisk ofan accident .
Follow recomm endedtireinflation pressures
and check thepressure ofall the tires
including thespare wheel:
R mont hly,atleast
R ifthe load changes
R before beginnin galong journ ey
R under differen toperating conditions,e.g.
off- road driving
If neces sary,correctthe tire pressure.
i The
data onthe Tire andLoading Informa-
tion placard andtirepressure tableshown
here areexamples. Tirepressure specifica- 308
Tir
epr essureWheels andtires

If
the tire pressu reshave been settothe lowe r
valu esfor lighter loadsand/or lowerroad
speed s,the pressu resshoul dbe reset tothe
higher values:
R ifyou want todrive withanincreased load
and/or
R ifyou want todrive athigher speeds
i The
tirepressu resforincreased loads
and/or higherroadspeed s,shown inthe
tire pressu retable, mayhave anegative
effect ondriving comfort.
If the tire pressu reisnot setcorrectly, thiscan
lea dto an excessive build-up ofheat anda
sudd enloss ofpressu re.
For more information, contactaqua lifiedspe-
ciali stworkshop. Important
notesontire pressure G
WARNING
If the tire pressu redrops repeatedly,the
wheel ,valve ortire may bedama ged.Tire
pressu rethat istoo low may resul tin atire
blow -out. There isarisk ofan accident.
R Check thetire forforeign objects.
R Check whether thewheel islosing airor
the valve islea king.
If you areunabl eto rectify thedama ge,con-
tact aqua lifiedspecia listworkshop. G
WARNING
If you fitunsui table accessorie sonto tire
valves ,the tire valves maybeoverloa ded
and malfu nction, whichcancause tirepres-
sure loss. Duetotheir desig n,retrofitted tire
pressu remonitors keepthetire valve open.
This canalso resul tin tire pressu reloss.
There isarisk ofan accident.
Only screw thestandard valvecaporother
valve capsappro vedbyMercedes-Benz for
you rvehicle ontothetire valve.
Use asuita blepressu regau getocheck the
tire pressu re.The outer appearance ofatire
does notpermit anyrelia bleconclusion about
the tire pressu re.On vehicle sequi pped with
the electronic tirepressu remonitor, thetire pressu
recan bechecked inthe on-board com-
puter.
The tiretemperature andpressu reincrease
when thevehicle isin motion. Thisisdepend-
ent onthe driving speedandtheload .
Therefore, youshoul donly correct tirepres-
sures whenthetires arecold.
The tires arecold:
R ifthe vehicle hasbeen parked withthetires
out ofdirect sunlightfor atlea stthree hours
and
R ifthe vehicle hasbeen driven lessthan
1 mile (1.6km)
The tiretemperature changesdependingon
the outsid etemperature ,the vehicle speed
and thetire load .If the tire temperature
changes by18 ‡(10 †), thetire pressu re
changes byappro ximately 10kPa (0.1 bar/
1.5 psi).Take thisinto account whenchecking
the pressu reofwarm tires.Onlycorrect the
tire pressu reifit is too low forthe current
opera tingconditions. Ifyou check thetire
pressu rewhen thetires arewarm, theresul t-
ing valu ewil lbe highe rthan ifthe tires were
cold. Thisisnormal. Donot reduce thetire
pressu reto the valu especifie dfor cold tires.
The tirepressu rewou ldotherwise betoo low.
Observe therecommended tirepressu resfor
cold tires:
R on the Tire andLoadi ngInformation placard
on the B-pilla ron the driver's side
R in the tire pressu retable inthe fuel fillerflap
(Y page 144) Underinfl
atedoroverin flated tires
Underinfl atedtires G
WARNING
Tires withpressu rethat istoo low can over-
heat andburst asaconsequence. Inaddi -
tion, theyalsosuffer fromexcessive and/or
irregu larwea r,which canseverel yimpa irthe
braking propertie sand thedriving character-
istics. Thereisarisk ofan accident.
Avoid tirepressu resthat aretoo low inall
the tires, includi ngthe spare wheel. 310
Tire
pressureWheel sand tires