2020 MERCEDES-BENZ GLA tow bar

Problem
Possible
causes/co nsequences and0050 0050
Solutions The
engine isnot run-
ning smoothly andis
misfiring. There
isamalfunction inthe engine electron icsorinamechanical
componen tof the engine management system.
X Only depress theaccelerator pedalslightly.
Otherwise, non-combusted fuelmay getinto thecatalytic con-
verter anddamage it.
X Have thecause rectified immediately ataqual ified specialist
workshop. The
coolant tempera-
ture gauge shows a
value above 248‡
(120 †).The warning
lamp mayalsobeon
and awarning tonemay
sound. The
coolant levelistoo low. Thecoolant istoo hotand theengine is
no longer beingcooled sufficiently.
X Stop assoon aspossible andallow theengine andthecoolant to
cool down.
X Check thecoolant level(Ypage 277). Observe thewarning notes
as you dosoand add coolant ifnecessary. Notes
ontowing vehicles
The vehicle isnot suitable forattaching tow
bar systems, suchasthose usedforflat tow-
ing ordinghy towing.
Att aching orusing towbarsystems mayresult
in damage tothe vehicle.
When towing avehicle withtowbarsystems,
safe driving characterist icscannot beguaran-
teed forthe towing vehicle orthe towed vehi-
cle.
The vehicle/trailer combinationmayswerve.
Observe thepermissible towingmethods
(Y page 301)andthenotes ontowing with
both axles onthe ground (Ypage 301). DYNAMIC
SELECTbutt on(all vehi-
cles except Mercedes-AMG vehicles)
Use theDYNAMIC SELECTbutton tochange
the drive program. Depending onthe drive pro-
gram selected thefollowing vehiclecharacter-
istics willchange:
R the drive (engine andtransmission manage-
ment)
R the sound ofthe exhaust system(vehicles
with sports exhaust system)
R the steering
R the availa bilityofthe ECO start/ stopfunc-
tion
R the climate control Each
timeyoustart theengine withtheSmart-
Key orthe Start /Stopbutton, driveprogram C
is activated. Forfurther information about
startin gthe engine, see(Ypage 126). X
Press DYNAMIC SELECTbutton 0043asmany
times asnecessary untilthedesired drive
program isselected.
The selected driveprogram appearsinthe
multifunct iondisplay .Aft erfive seconds, the
display goesoutand thestatus symbol of
the selected driveprogram appears.
In addition, thecurrent driveprogram set-
tings aredisplay edbriefly inthe multimedia
system display.
i In
afew countr ies,theECO start/ stop
funct ionisdeactivated atthe factory dueto
the availa blefuel grade. Inthis case, the
ECO start/ stopfunct ionisnot availa blein
any drive program, regardless ofthe display
in the multimedia systemdisplay. 132
DY
NAMIC SELECTbutt on(all vehicl esexce ptMercedes-AMG vehicles)Driving andparking

R
ifthe camer alens isdirt yor obst ructed.
Obser vethe noteson clean ing
(Y page 284)
R ifthe rear ofyour vehic leisdamaged. Inthis
case, havethecamer aposit ionand setting
chec kedataqualified specialist workshop.
The field ofvision andotherfunc tionsof the
rear view camer amay berest ricteddue to
addition alacc essor iesonthe rear ofthe vehi-
cle (e.g. licenseplate holder ,rear bicyc le
rack ).
i The
contrast ofthe display maybeaffec -
ted bythe sudden presenceof sunligh tor
oth erlight sourc es,e.g. when exitinga
garage. Payparticular attent ion inthis situa-
tion .
i If
usability issever elyrest ricted, e.g. due
to pixel errors,have thedisplay repairedor
replac ed.
Activa ting/d eactivating therea rview
cam era X
To acti vate:make surethattheSmar tKey
is in posit ion0048inthe ignit ionlock .
X Make surethattheActi vationbyRgear Acti
vationbyRgear
func tion isselec tedinthe multim ediasys-
tem ;see theDigit alOperat or'sManual.
X En gage reversegear.
The area behin dthe vehic leisshown with
guide linesinthe multim ediasystemdis-
play.
The image fromthe rear view camer ais
available throughout themane uverin gproc -
ess.
To deact ivate:the rear view camer adeact i-
vate sif you shift thetransm ission to005D or
aft erdrivin gfor wards ashor tdist ance.
The innersegme ntsof the warnin gindic ator
are displayed inred ifthe reisacom plete sys-
tem failure. Theindic atorlamp inthe
PARK TRONIC buttonlight sup.
If the syst emfails atthe rear ofthe vehic le:
R the rear segme ntsare shown inred when
back ingup.
R the rear segme ntsare hidden whendriving
for wards. Messa
gesinthemu ltim edia system
disp lay The
rear view camer amay show adist orted
view ofobst acles, showtheminc orre ctly or
not atall. The rear view camer adoes notshow
obje ctsin the followin gposit ions:
R very closeto the rear bumper
R under therear bumper
R in the area immed iatelyabove thetailgat e
handle
! Obj
ectsnot atgroun dlevel mayappear to
be furt her away thantheyact ually are,e.g.:
R the bumper ofapark edvehic le
R the drawbar ofatrailer
R the ball couplin gof atrailer towhitch
R the rear sectionofan HGV
R aslant edpost
Use theguideline sonly fororien tation.
Appr oach objectsno furt her than thebot-
tom -most guideline . 0043
Yellow guidelineatadist anceof approx -
imate ly13 ft(4. 0m) fromthe rear ofthe
vehic le
0044 Whit eguide linewitho utste erin ginput –
vehic lewidth including theexterior mirrors
(st atic )
0087 Yellow guidelineforthe vehic lewidth
inc luding theexterior mirrors, atthe cur-
ren tste erin gwheel angle(dynamic )
0085 Yellow lanemark ingthe cour sethe tires
will takeat the curr entsteerin gwheel
angle (dynamic ) Driving
systems
179Driving andparking Z

G
WARNING
Functions relevant tosafety arerestricted or
no longer available if:
R the engine isnot running
R the brake system orthe pow ersteering is
malfu nctioning
R there isamalfu nction inthe pow ersup ply
or the vehicl e'selectrica lsystem
When yourvehicl eis towed awayor towed
started, youmay requireconside rablymore
effort tosteer andbrake. Thereisarisk of
an accide nt.
In such cases, useatow bar. Before being
towed awayor tow started, makesurethe
steering movesfreely. X
Pul loil dip stick 0043out ofthe dipstick guide
tube.
X Wip eoff oildip stick 0043.
X Slowl yslid eoil dip stick 0043into theguide
tube tothe stop, andtake itout again.
If the leve lis betwe enMIN mark 0087and
MAX mark 0044,theoilleve lis correct.
X Ifthe oilleve lhas dropp edtoMIN mark 0087
or bel ow, add 1.1USqt(1.0 l)of engine oil.
Adding engineoil G
WARNING
Certa incomponents inthe engine compart-
ment, suchasthe engine, radiator andparts
of the exhau stsystem, canbecome very
hot. Working inthe engine compartment
pose sa risk ofinjury . Where
possible,let the engine cooldown
and touch onlythecomponents describedin
the followi ng. G
WARNING
If engine oilcomes intocontact withhot
components inthe engine compartment, it
may ignite. Thereisarisk offire and injury .
Make surethatengine oilisnot spilled next
to the filler neck. Letthe engine cooldown
and thoroug hlyclea nthe engine oiloff the
components beforestarting theengine. H
Envi
ronmental note
When addingoil,take carenottospil lany. If
oil enters thesoil orwater ways,itis harmfu l
to the environment.
! Use
only engine oilsand oilfilters thatare
app roved forvehicl eswith aservice system.
A list ofthe engine oilsand oilfilters that
have been tested andapproved inaccord-
ance withMercede s-BenzSpecifications for
Service Productsisava ilable atany author-
ized Mercede s-BenzCenter.
The followi ngcaus eengine failure ordam-
age tothe exhau stsystem:
R Use ofengine oilsand oilfilters thathave
not been express lyapp roved forthe ser-
vice system
R Rep lace ment ofengine oiland oilfilter
after thereplacement intervalspecified
by the service system hasexpire d
R Use ofengine oiladd itives
! Do
not add toomuch oil.add ingtoo much
engine oilcan resu ltin dama getothe
engine ortothe catal yticconverter. Have
excess engineoilsiph oned off. 276
Eng
inecompar tmentMainten anceandcare

Using
theTIREFIT kit X
Do not remov eany foreign objectswhich
have penet rated thetire, e.g.screws or
nails.
X Remove thetire sealant bottle,the accom -
panying TIREFITstic ker and thetire inflat ion
compr essorfromthestowage wellunder-
neat hthe cargo compar tmentfloor
(Y page 288).
X Aff ixpart 0043ofthe TIREF ITstic ker tothe
inst rumen tclust erwithin thedriver' sfield of
vision .
X Aff ixpart 0044ofthe TIREF ITstic ker near the
valve onthe wheel withthedefect ivetire. X
Pull connector0085with thecable andhose
0083 out ofthe tire inflat ioncompr essorhous-
ing.
X Sc rew hose 0083ontoflange 0084oftire sealant
bott le0043.
X Place tiresealant bottle0043 head down into
reces s0044 ofthe tire inflat ioncompr essor. X
Remove thecap from valve 006Bonthe faulty
tire.
X Sc rew filler hose 006Contovalve 006B.
X Ins ert plug 0085intoa12 Vsock etinyour
vehicle.
Observ ethe noteson sock ets(Ypage 261).
X Turn theSmart Keytoposition 0047inthe igni-
tion lock (Ypage 125).
X Press onand offswitc h0087 onthe tire infla-
tion compr essortoI.
The tireinflat ioncompr essorisswitc hedon.
The tireisinflat ed.
First ,tire sealant ispumped intothe tire.
The pressure canbriefly risetoapprox-
imately 500kPa(5bar/7 3psi).
Do not switch offthe tireinflat ioncom-
pr essor during this phase.
X Let the tire inflat ioncompr essorrunfora
maximum offive minut es.The tireshould
then have attained apressure ofat least
180 kPa(1.8 bar/2 6psi).
If apressure of180 kPa(1.8 bar/26 psi)has
been attained afterfiveminut es,see "Tire
pressure reached" (Ypage 292).
If atire pressure of180 kPa(1.8 bar/26 psi)
has notbeen attained afterfiveminut es,see
"Tire pressure notreached" (Ypage 292).
If tire sealant hasescaped, cleanitoff affec ted
areas asquickly aspossible. Useplain water if
possible.
If your clothes aresoiled withtiresealant ,
have them cleaned withperch loroet hylene ata
dry cleaner assoon aspossible. Flat
tire
291Breakd ownassist ance Z

Tire
pres sure notreac hed If
apre ssu reof180 kPa(1.8 bar/26 psi)ha s
not been atta inedaf ter fivemin utes:
X Swi tch offthe tire inflation comp ressor .
X Unsc rewthefillerhos efro mthe valve ofthe
fa ulty tire .
Note thattire sealant ma yesc apewh en you
uns crew thefillerhos e.
X US Aon ly:ver yslow lydri ve the vehiclefor -
wa rds orrev ers eap pro xim ately30 ft
(10 m).
X Pu mp upthe tire again.
After ama xim um offivemi nute sthe tire
pre ssu remu stbe atleas t180 kPa(1.8 bar/
26 psi). G
WA
RNING
If the required tire pressu reisnot reache d
af ter the speci fiedtim e,the tire istoo badly
da ma ged. The tiresealant cann otrep airthe
tire inthi sins tance .Dam aged tire sand a
tire pressu retha tis too low can signi ficantl y
im pairthe vehicle'sbra king anddrivin g
cha racteri stics. The reisaris kof acc ident.
Do not conti nuedrivin g.Co ntact aqu alifi ed
sp eci alistwo rksh op.
Tire pres sure reached G
WA
RNING
A tire temp orarilyse aled with tire sealant
im pairs the vehicle'sdri vin gcha racteri stics
and isnot suita ble for drivin gat highe r
sp ee ds.The reisaris kof an acc ident.
Ada ptyour drivin gsty leacc ordinglyand
dri ve car efully. Do not exce edthe maxim um
pe rmi ssible sp ee dfor atire sealed with tire
se alant.
US Aon ly:The maxim um permi ssible sp ee d
for atire sealed with tire sealant is50 mph
(80 km/h ).The upperpa rtof the TIREFIT
sti cker mustbe affix ed tothe instrument clus-
ter inthe driver 'sfie ldof vis ion. If
atire pressu reof180 kPa(1.8 bar/26 psi)
ha sbe en atta inedaf ter fivemi nute s:
X Swi tch offthe tire inflatio ncomp ressor .
X Unsc rewthefillerhos efro mthe valve ofthe
fa ulty tire .
Note thattire sealant mayes cap ewh en you
uns crew thefillerhos e.
X US Aon ly:Stow thetire sealant bottle and
the tire inflatio ncomp ressor .
X Pul law ayimme diately.
X Stop after drivin gfor appro xim atelyten
mi nute sand checkthe tire pressu rewith
the tire inflatio ncomp ressor .
The tirepressu remu stnow beatleas t
130 kPa(1.3 bar/19 psi). G
WA
RNING
If the required tire pressu reisnot reached
afte rdri ving forasho rtper iod,the tire istoo
ba dlyda mag ed.The tiresealant cannot
rep airthe tire inthis insta nce. Dama ged
tire sand atire pressu rethat istoo low can
sig nifi cantl yimp airthe vehi cle'sbra king and
dri ving characte ristics. Thereisaris kof
acci dent.
Do not continu edri ving .Co ntact aqu alifi ed
spe cialist wo rksho p.
i USA
only: Incase ssu ch asthe one men-
tione dab ove, contact anauthori zed
Merce des-Benz Center. Orcall
1-800-FOR -MERCedes(in the USA) or
1-800-38 7-0100(in Ca nad a).
X USA only: Corre ctthe tire pressu reifit is
stil lat leas t130 kPa(1.3 bar/19 psi).See
the Tire and Loading Infor mationplaca rdon
the driver' sside B-pi llar or the tire pressu re
tab lein the fuelfil lerfla pfor values.
X To incre ase thetire pres sure :sw itch on
the tire inflation comp ressor . 29
2 Fl
at tireBreakdo wnassis tan ce

Tow
ingand tow-starti ng Impo
rtant safety notes G
WA
RNING
Fun ctio nsreleva ntto safety areres tric ted or
no longe rav ailabl e if:
R the engineisnot running
R the brakesystem orthe powe rstee ringis
ma lfunctio ning
R the reisama lfunctio nin the powe rsu pp ly
or the vehicle's electri calsystem
Wh enyour veh icleis tow edaway ortow ed
sta rted ,yo uma yreq uire cons idera blymor e
eff ort tostee rand brake. Thereisaris kof
an acc ident.
In such cas es, useatow bar.Befo rebeing
tow edaway ortow started ,ma kesure the
stee ringmov esfreely. G
WA
RNING
Yo ucan nolonge rstee rthe vehicleif the
stee ringwh eello ck hasbe en eng aged .
The reisaris kof an acc ident.
Alw ayssw itch offthe igniti onwhen tow ing
the vehiclewi th atow cableor atow bar. G
WA
RNING
Wh entow ingortow -sta rtingano therveh icle
and itsweight isgre atertha nthe permi ssi-
bl e gro sswe ight ofyour veh icle, the :
R the towingeyecou ldde tach itself
R the vehicle/tra iler comb inationcou ldrol l-
ove r.
The reisaris kof an acc ident.
Wh entow ingortow -sta rtingano therveh i-
cle ,its weight sho uld not begre atertha n
the permi ssible gro sswe ight ofyour veh icle.
Deta ils on the permi ssible gro ssveh iclewe ight
of your veh iclecan befou ndonthe vehicle
id enti ficati on plate (Ypage 334 ).
! Wh
enActiv eBra keAssi st,Activ eDis tance
Assi stDISTR ONICor the HOLD functio nis
acti vated ,the vehiclebra kes automa tically
in certa insitua tions. To
avoid da ma getothe vehicle, de acti vate
the sesystem sin the followi ng orsimil arsit-
ua tio ns:
R wh en tow ingthe vehicle
R in the carwash
! Ma
kesure tha tthe electri cpa rkin gbra ke
is rel eased .If the electri cpa rkin gbra keis
fa ulty, visitaqu alifi ed speci alistwo rksh op.
! Onl
ysec urethe tow ropeor tow barat the
tow ingeyes. Othe rwise, the vehiclecou ldbe
da ma ged.
! Do
not usethe towingeyes for reco very
pu rpo ses asthiscou ldda ma gethe vehicle.
If in do ubt,reco verthe vehiclewi th acra ne.
! Wh
entow ing,pu llaw ay slow lyand
smo othly.Ifthe tractiv epo we ris too high,
the vehicles cou ldbe dama ged.
! The
vehiclecan betow edama xim um of
30 miles(50km) .The towingspee dof
30 mph (50km/h) mustnot beexce eded.
If the vehicleha sto be tow edmor etha n
30 miles(50km) ,the frontaxl emu stbe
ra ised orthe entireveh iclera ised and trans-
po rted .
! Do
not tow with sling -typ eeq uipme nt.This
cou ldda ma gethe vehicle.
! Wh
entow ingaway veh icles with KEYL ESS-
GO ,us ethe key instea dof the Star t/Stop
bu tton. Theautoma tictransmi ssion may
othe rwise shi ftto positio n005D when you
op en the driver 'sor fro nt-pa ssenge rdo or,
wh ich cou ldda ma gethe transmi ssion.
! Veh
icles with automa tictransmi ssion mu st
not bestarted bytow -sta rting.Thi scou ld
othe rwise da ma gethe transmi ssion.
It is be tter tohave the vehicletra nsp orte d
tha nto have ittow edaway.
If the vehiclecan nolonge rbe driven becau se
of an acc ident orbre akd own,youha ve the fol-
lo wi ng optio ns:
R Tra nsp ortingthe vehicle.
As aru le,yo usho uld ha ve the vehicletra ns-
po rted .
R To wing the vehiclewi th atow ropeor tow
ba r.
Onl ytow thevehiclein exce ptiona lcas es. Tow
ingand tow-starti ng
299Break downass istanc e Z

X
When thevehicle isstation ary,depress the
brake pedalandkeep itdepressed.
X Shift theautomatic transmission toposition
005D.
X Release thebrake pedal.
X Release theelectr icparking brake.
X Switc hoff the automatic locking
(Y page 199).
X Switc hon the hazard warning lamps
(Y page 104).
X Turn theSmart Keyinthe ignition lockto
position 005Aand leave theSmart Keyinthe
ignition lock. Towing
avehicle withboth axles on
the ground
It is importan tthat youobserve thesafety
inst ruction swhen towing awayyourvehicle
(Y page 299).
X On
vehicles withKEYLE SS-GO orthe
KEYLE SS-GO startfunction: youmust use
the Smart Keyinstead ofthe Start/S topbut-
ton (Ypage 126).
The automatic transmission automatically
shifts toposition 005Dwhen youopen thedriv-
er's orfron t-passenger doororwhen you
remove theSmart Keyfrom theignition lock.In
order toensure thattheautomatic transmis-
sion stays inposition 005Cwhen towing away
the vehicle, youmust observe thefollowing
points :
X Make surethatthevehicle isstation ary.
X Turn theSmart Keytoposition 0048inthe igni-
tion lock.
X Depress andhold thebrake pedal.
X Shift theautomatic transmission toposition
005C.
X Leave theSmart Keyinposition 0048inthe
ignition lock.
X Release thebrake pedal.
X Release theelectr icparking brake.
X Switc hon the hazard warning lamps
(Y page 104).
i In
order tosignal achange ofdirect ion
when towing thevehicle withthehazard
warning lampsswitched on,use thecombi-
nation switch asusual. Inthis case, onlythe
indicator lampsforthe direct ionoftravel flash.
Afterresett ingthe combin ation
switch, thehazard warning lampstarts
flashing again. Perm
ittedtowing methods
Mercedes- Benzrecomm endstransportin gyour
vehicle inthe case ofabreakdown, ratherthan
towing itaway.
When towing away,useatowing ropeora
towing barwith both axles onthe ground. Do
not use anytow barsystems. Tr
anspor tingthevehicle
Vehicles withautomat ictransmission !
When
thevehicle isloaded fortran sport,
the fron tand rear axles mustbestation ary
and onthe same transportat ionvehicle.
Position ingover theconn ection pointofthe
tran sport vehicle isnot permitt ed.The drive
train mayotherwise bedamaged. All
vehicles !
You
may onlysecure thevehicle bythe
wheels, notbyparts ofthe vehicle suchas
axle orsteerin gcompon ents.Other wise, the
vehicle couldbedamaged.
X Turn theSmart Keytoposition 0048inthe igni-
tion lock (Ypage 125).
X Shift thetran smission toposition 005C.
As soon asthe vehicle hasbeen loaded:
X Preven tthe vehicle fromrolling awayby
applying theelectr icparking brake.
X Shift thetran smission toposition 005D. Towing
andtow-sta rting
301Breakdown assistance Z