ECU MERCEDES-BENZ GLC 2021 Workshop Manual

Do
notus ecr uise contr olinthefo llo wing situa‐
tion s:
R Intraf fic situ ations whichrequ ire freq uent
ch ang esofspee d,e.g .in hea vytraf fic, on
wi nding roads.
R Onslippe ryroads. Accel erati ng can cause
th edr ive wheels tolose tract ion and the
ve hicle could then skid.
R Ifyo uar edr ivin gwhen visibilit yis poor .
Ope ratin gcr uis eco ntr ol &
WARNIN GRisk ofacci dent dueto stor ed
speed
If yo ucall upthestor ed speed andthis is
lo we rth an your cur rent spe ed,th eve hicle
deceler ates. #
Take intoacc ount thetra ffic situat ion
bef orecallin gup thestor ed speed. Re
quirement s:
R ESP®
mus tbe act ivat ed, but notint erve ning .
R The vehicle speed isat leas t15 mp h
(20 km/ h). R
The transmis sionisin positio n005B. Oper
atingcr uise contr ol #
Press thero ck er switc hesonthesteer ing
wheel control panel upordown tothe
desir edposition .
Ac tiv atin gcr uis eco ntr ol #
Select M with theright rock er switc h. Ac
tiv atin gcr uis eco ntr ol #
Press rock er switc h1 upM ordown
N.
The current spe edisstor ed and maint ained
by theve hicle.
or #
Select Jwithth elef tro ck er switc h.
The lastst or ed speed iscalled upand main‐
ta ined bytheve hicle.
If th elas tst or ed speed hasprev iousl ybeen
dele ted, thecur rent vehicle speed isstor ed.
% When youswit choffth eve hicle, thelas t
speed stor ed isdele ted.
Incr easing ordecr easing thesto redspe ed #
1mp h(1 km/h) :pr ess rock er switc h1 up
M ordown N tothepr essur epoint .
or #
5mp h(1 0 km/h) :pr ess rock er switc h1 up
M ordown N beyond thepr essur e
point .
or Dr
iving andparking 18
1

#
ActivateAc tiveDis tance AssistDIS TRONI C
and remo veyour foot from thebr ak epedal. #
Select Jwithth elef tro ck er switc h.
or #
Depr esstheacceler ator pedal brief lyand
fi rm ly.
The funct ionsofActiveDis tan ceAssi st
DIS TRONI Cconti nuetobe car ried out.
Deactiv atingActiv eDi stance Assist
DI ST RO NIC &
WARNIN GRisk ofan acci dent dueto
Ac tiveDis tan ceAssi stDIS TRONI Cbe ing
acti vewhen youlea vethedr iver's seat
If yo ulea vethedr iver's seat while theve hicle
is being brak ed byActiveDis tan ceAssi st
DIS TRONI Conly ,th eve hicle canrollaw ay. #
Alw aysdeactiv ateAc tiveDis tance
Assi stDIS TRONI Cand secureth eve hi‐
cle topreve ntitfrom rolling away
bef oreyo ulea vethedr iver's seat. #
Select Owithth elef tro ck er switc h. %
Ifyo ubr ak e, deac tivateES P®
or ifES P®
int erve nes, ActiveDis tance Assist
DIS TRONI Cis de acti vated.
Incr easing ordecr easing thespeed #
1mp h(1 km/h) :pr ess rock er switc h1 up
M ordown N tothepr essur epoint .
or #
5mp h(1 0 km/h) :pr ess rock er switc h1 up
M ordown N beyond thepr essur e
point .
or #
Accel erateth eve hicle tothedesir edspeed
and press rock er switc h1 upM.
Changing thespecif ieddistance totheve hi‐
cle infront #
Toreduce thespecified distance: press
th eright rock er switc hup (Ñ). #
Toincr ease thespecif ieddistance: press
th eright rock er switc hdo wn (Ò).
Fu nction ofActiv eSpe edLimit Assist
If speed limitch ang ebe tween 12mp h
(20 km/ h)and 80mph(1 30 km/h) isde tected and
theaut omatic adoptionofspeed limitsis
activ e,itwill beaut omaticall yadop tedas the
st or ed speed (/page200).
The driven speed isadjus tedwhen theve hicle is
le ve lwit hth etraf fic sig nat thelat est.In the
case ofsig ns indi cati ngentr yint oan urb anarea ,
th espeed isadap tedaccor dingtothespeed
per mitt edwithin theurban area. The speed limit
displa yin theIns trument Displayis alw aysupda ‐
te dwhen theve hicle isleve lwit hth etra ffic sign .
If th er eis no speed restriction onanunlimited
st re tchof road (e.g.on afree wa y), there com‐
mend edspe edisau tomatical lyadop tedas the
st or ed speed. Thesystem uses thespeed stor ed
on anunlimit edstre tchof road asthere com‐
mend edspe ed. Ifyo udo notalt er thestor ed
speed onanunlimit edstre tchof road, there c‐
omme ndedspeedis80 mph(1 30 km/h) .
If Ac tiveDis tance AssistDIS TRONI Cha sbe en
pu tint opa ssi ve mode bypressing theaccelera ‐
to rpeda l,onl yspee dlimi tswhi charehigh er
th an these tspeed areadop ted. 18
6
Driving and parking

ent
s,theDS Rbr ak es theve hicle minimally or
no tat all.
When DSRisactiv ated and thetransmission isin
position 005B,005Eor005C, DSRcon trols thedr iving
speed. Thetarget speed canbesetto ava lue
be tween 1mp h(2 km/h) and11mp h
(1 8 km/ h).Bybraking oracceler ating,youcan
dr ive at ahigh eror lowe rspee dth an theta rget
speed atanytime.
DSR isdeactiv ated aut omaticall yif yo udr ive at
spee dsgreat erthan 28 mph(45 km/h) orselect
dr ive pr ogr am C orB. Theî Offmes‐
sag eth en appear sin themultifunc tiondispla y.
The status indicat orinthemultifunc tiondispla y
disappear s.Yo ualso hear awa rning tone.
No teson DSR &
WARNIN GRisk ofskid ding and accident
whe nDSR isacti vatedon slipper yro ad
sur faces
If th edr iven speed andtheta rget speed dif‐
fe r, th ewheels maylose traction . #
Take intoacc ount thero ad sur face and
th edif fere nce betwee nth edr iving speed
andtarget speed beforeactiv at‐
ing DSR. Obser
vetheno teson driving systems andyour
re sponsibili ty;yo uma yot her wise failto recog‐
nize dangers(/ page 171).
Yo uar ealw aysre sponsible forke eping control of
th eve hicle andforasse ssing whether thedo wn‐
hill gradient canbenego tiated. Depen dingon
ro ad sur face and tires, DSR mayno tal wa ys be
able tokeep totheta rget speed. Selectata rget
speed suitable forth een vironmen talcon dition s
and also applyth ebr ak es yourself ifre qu ired.
Ac tiv atin gor deac tivatin gDS R(D ow nhill
Speed Regulat ion)
Re quirement s:
R Youar edr ivin gat aspee dof 25 mph
(40 km/ h)or lowe r.
If th ecur rent vehicle speed istoohigh, the
Max. Speed 24mph messag eappear sin the
multifu nctiondisplay.
R ActiveDis tance AssistDIS TRONI Cis de acti ‐
va ted. Multimedia
system:
4 © 5
Set ting s5
Quick Access #
Select î.
A status displa yappear sin themultifunc tion
displa ywhen thefunc tion isactiv ated.
% When youswit chtotheF drive pr og ram,
th efunc tion isaut omatic allyactiv ated.
Changing thetar getspe ed Dr
iving and parking 18
9

Ac
tiv atin g/deac tivatin gAc tiv eSte ering
Assis t
Re quirement s:
R ESP®
is act ivat ed, but isno tint erve ning .
R ActiveDis tance AssistDIS TRONI Cis acti va‐
te d.
Multimedia system:
4 © 5
Set ting s5
Quick Access #
Select 004FSteering Assist. Fu
nction ofActiv eEme rgency Stop Assis t If
th esy stem detects that thedr iver has not
st eer edtheve hicle fora consider ableper iod of
time orhas remo vedth eir hands from thesteer‐
ing wheel, display1 appear sin themultifunc ‐
tion displa y.Ifth edr iver still does notst eer the
ve hicle, orgiv es no conf irmation tothesy stem,
a wa rning tone sou nds inad ditio nto thevisual
wa rning mess age.
If th edr iver still does notre spond tothewa rn‐
ing, theBeginn ingEmer gencySt op messag e
appear sin themultifunc tiondispla y.Ifth edr iver
st ill does notre spond, ActiveDis tance Assist
DIS TRONI Creduces thespeed. Thevehicle is
deceler ated instag es toast ands till.
De pen dingon thecount ry,at speeds below
40 mph(60 km/h) thehazar dwa rning light s
switc hon aut omat ically.
When theve hicle isstatio nary,thefo llo wing
act ions arecar ried out :
R The vehicle issecur edwithth eelectr icpar k‐
ing brak e.
R ActiveDis tance AssistDIS TRONI Cis end ed
R The vehicle isunloc ked. R
Ifpossible, anemer gency callis place dto
th eMer cedes- Benzemergency callcent er
The driver can cance lth edeceler ationatany
time byper form ing one ofthefo llo wing actions :
R Steer ing
R Braking oracceler ating
R Deact ivating ActiveDis tance Assist
DIS TRONI C Ac
tiv eLan eCha ngeAs sist Fu
nction ofActiv eLan eCha ngeAs sist
Ac tiveLa ne Chang eAssi stsuppor tsthedr iver
when chang inglane sby appl ying steer ing torq ue
if th edr iver oper ates atur nsignal indicat or.
Obser vetheno teson driving systems andyour
re sponsibili ty;yo uma yot her wise failto recog‐
nize dangers(/ page 171).
Assi stanc ewhen chang inglane sis prov ided ifall
th efo llo wing condition sar eme t:
R Youar edr ivin gon afree wa yor road with
mult iplelanesin thedir ect ion oftra vel. 19
2
Driving and parking

R
The navig ation services option isavailable,
subsc ribed toand activat ed intheMer cedes
me Portal.
R The traf fic light data ser vice iswit hin the
scope ofthena vig ation service.
The current vehicle position andthedir ect ion of
tr av el aretransmit tedvia thecomm unication
module andaligned withth edat afrom thetra f‐
fi c light data ser vice prov ider .The prov ider gath‐
er sdat afrom traf fic lights whichtrans mitth eir
ch ang ingphase s.When theve hicle approaches
an intersection withne tworke dtraf fic lights,
da ta istransmit tedto theve hicle.
A se ttur nsignal leftor right and lane recom‐
mend ations during acti verouteguidan ceare
ta ke nint oacco untforth edispla y.
The service isforinf ormation purposes onlyand
is no tlink edtoanyot her vehicle functions, sys‐
te ms orcom ponents. Pleasenote that thedis‐
pla yeddat ais no tav ailable inall traf fic ar ea s
and maybe incor rect.
Ce rtain light signalsystems automaticall yadap t
th eir switc hingtimes tothecur rent traf fic situ a‐ tion.
Thiscan lead toasudden chang ein the
cou ntdo wndispl ay.
The information intheIns trument Displayis
sho wnafte rsele cting thedispla ycon tents inthe
Assi stance menu .If ano ther menu isselect ed,
th etraf fic light countdo wnisno tdi spl ayed.
In addition, observethefo llo wing informatio n:
R Selec ta speed adaptedto thetra ffic, sur‐
ro und ingsand weather condition s
R Obse rveactual traf fic sig ns
R Obs erve applic abletraf fic ru les and regula‐
tions
Obser vetheno teson driving systems andyour
re sponsibili ty;yo uma yot her wise failto recog‐
nize dangers.
Sy stem limit s
The displa ydoes notappear inthefo llo wing sit‐
uation s,forex am ple:
R Ther eis no traf fic light data available.
R The timere maini nguntil thene xt green
phase isless than tenseco nds. R
Emerg encyvehicles orlocal publictranspor t
ar elocat edinthevicin ityoftheint ersect ion.
R The datatransmission from theve hicle has
been interru pted.
R Light signal systems arelocat edinacon ‐
st ru ction sitear ea orarebei ng mai ntained.
R The light signal system ismalfunct ioning.
R The subscr iption totheser vice hasexpir ed. Switc
hingthetraf fic ligh tinf orma tion dis‐
pla yon oroff Mult
imed iasystem:
4 © 5
Set ting s5
Assist ance #
Switc hTraffic LightInformation onD or
of fE. Blind
SpotAssis tand Activ eBli nd Spo t
As sist wit hex itwa rning Fu
nction ofBlind SpotAssis tand Activ e
Bli nd Spo tAs sist wit hex itwa rning
Blin dSpo tAss istand ActiveBli nd Spo tAssi st
use twolat eral, rear-facin gra dar sensor sto 202
Driving andparking

Ra
ising there ar oftheve hicl e #
Che ckifth ebatt eryis suf ficie ntly charge d. If
nec essar y,star tth eengine. #
Pull switc h1 brief ly.
Indic ator lam p2 goes out.
The vehicle willberaised tothecur rently
sel ect edleve l.
% The vehicle isaut omaticall yse tto theleve l
of themos tre cently activedrive pr ogr am if
yo udr ive at spee dsgreat erthan 1.2 mp h
(2 km/ h)wit hth ere ar oftheve hicle low‐
er ed. The Vehicle RisingPlease Waitmes‐
sag eappea rsinthemultifunc tiondispla y.
If th eve hicle canno tbe raised: #
Ensur eth at thebatt eryis suf ficie ntly
ch arge d; ifnec essar y,star tth eengine.
The raising proces scon tinues. Re
ar vie wcamer a Fu
nction ofthere ar vie wcamer a
When youen gage reve rsege ar,th eimag efrom
th ere ar vie wcam erais sho wninthemedia dis‐
pla y.Dyna micguide lines showthepat hth e ve
hicle willtake wit hth ecur rent steer ing ang le.
This helps youto orient yourself and toavoid
obs tacle swhe nba cking up.
The rear vie wcam erais on lyan aid. Itis no ta
subs titutefo ryo ur att entio nto thesur round ings.
The responsibili tyforsaf emaneu vering and
pa rking remains withyo u. Mak esur eth at ther e
ar eno per sons, animals orobjec tsetc., inthe
maneu vering area while ma neu vering and park‐
ing.
% Youcan open theco verof there ar vie wcam ‐
er aman ually(/ page21 8).
Th egui de lines inthemedia displaysho wthe
dis tances toyour vehicle. Thedistances dis‐
pl aye donl yapply toroad leve l.
Depe ndingon theve hicle equipment, youcan
sele ctfrom thefo llo wing views:
R Normalvie w
R Wide-ang levie w
R Trailer view
The area behin dth eve hicle isdispla yedas a
mir rorimag e,as intheinside rear vie wmir ror. Ve
hicl eswithout Parking Assis tPA RK TRONI C
The follo wing camer avie ws areav ailable inthe
multime diasystem: Nor
mal view
1 Yello wguide line,vehicle width(dr iven sur‐
fa ce) dep endi ngon thecur rent steer ing
ang le(dynamic)
2 Yello wguide lineatadis tance ofapprox ‐
imat ely3. 3ft (1.0 m) from there ar area
3 Yello wlanes markingth ecour sethetir es
will take wit hth ecur rent steer ing ang le
(dynamic) 21
2
Driving and parking

4
Bumper
5 Redguide lineatadis tance ofapprox imat ely
1. 0 in (0.3 m)from there ar area Wi
de-ang levie w Tr
ailer view(vehic leswithatrailer hitch)
1 Yello wguide line,locat ingaid
2 Redguide lineatadis tance ofapprox imat ely
1. 0 in (0.3 m)from theball head ofthe
tr ai le rhi tc h
3 Ballhe ad ofthetrailer hitch
Ve hicl eswith Parking Assis tPA RK TRONI C
The follo wing camera views areav ailable inthe
multime diasystem: Nor
mal view
1 Yello wlanes markingth ecour sethetir es
will take wit hth ecur rent steer ing ang le
(dynamic)
2 Yello wguide line,vehicle width(dr iven sur‐
fa ce) dep endi ngon thecur rent steer ing
ang le(dynamic)
3 Redguide lineatadis tance ofapprox imat ely
1. 0 in (0.3 m)from there ar area
4 Yello wwa rning indic ator ofParking Assist
PA RK TRONI C:obs tacles atadis tance
be twee nap prox imat ely2. 0ft (0.6 m)and
3.3 ft(1.0 m) Dr
iving andparking 21
3

To
pvie w 1
Lane indicati ngthero uteth eve hicle will
ta ke atthecur rent steer ing wheel angle
2 Warning displa yof Parking Assist
PA RK TRONI C
3 Your vehicle from above
The color oftheindividual segmentsof wa rning
displa y2 isbased onthedis tance tothede tec‐
te dobs tacle :
R Yello wsegment s:obs tacle sat adi st anc e
be tween appr ox.2.0 ft(0.6 m)and 3.3ft
(1 .0 m) R
Orang esegment s:obs tacle sat adi st anc e
be tween appr ox.1. 0 ft (0.3 m)and 2.0ft
(0.6 m)
R Redse gme nts: obstacle sat ave ry shor t
dis tance ofapprox .1. 0 ft (0.3 m)orless
When Parking AssistPA RK TRONI Cis operatio nal
and noobj ectis de tected, thesegment sof the
wa rning displa yar esho wningray . Guide
lines 1
Yello wlane markingth ecour sethetir es will
ta ke atthecur rent steer ing wheel angle
(dynamic)
2 Yello wguide line,vehicle width(dr iven sur‐
fa ce) dep endi ngon thecur rent steer ing
wheel angle(dynamic)
3 Redguide lineatadis tance ofapprox imat ely
1. 0 in (0.3 m)from there ar area
4 Markat adis tance ofappr ox.3.3 ft(1.0 m)
% When ActivePa rking Assistis act ive, lane
mar kings1 aredispla yedin green. 21
6
Driving and parking

select
thecor responding transmission posi‐
tion.
The vehicle drives intoth eselect edpar king
space.
% During thepar king procedur ewit hAc tive
Pa rking Assist, th elane marking sar edis‐
pla yedin green inthecamer aimag e.
On com pletion ofthepar king procedur e,the
Ø Parking AssistFinished, TakeContro lof
Vehicle displaymessag eappear s.Fu rther
maneuv ering mayst ill be nec essar y. #
Aftercom pletion ofthepar king procedur e,
saf eguar dth eve hicle agains tro lling away.
When requ ired bylegalrequ iremen tsor local
con dition s:tur nth ewheels towa rdsth ecurb.
% Youcan stop theve hicle andchang eth e
tr ans missi on positio ndu ring thepar king pro‐
cedur e.The system then calculat esane w
ve hicle path.Ifno newvehicle pathis availa‐
ble, thesy stem can chang eth etransmission
position again orcanc elthepar king proce‐
dur e. Exiting
apar king space withAc tiv ePa rking
Assis t
Re quirement s:
R The vehicle hasbeen parkedwit hAc tive
Pa rking Assist.
Please note that youar ere sponsible forth eve hi‐
cle and surround ingsdur ing theent ire par king
pr ocedur e. #
Startth eve hicle. #
Press butt on1.
The media displaysho wsthevie wof Active
Pa rking Assist. 226
Drivin gand parking

Re
trof itti ng atrai le rhi tc his pe rm issible onlyif a
trailer loadisspec ified inyour vehicle docu‐
ments. Ifth is isno tth ecase, theve hicle isno t
appr ovedfo rtr ail er oper ation.
Fu rther information canbeobt ained ataqu ali‐
fi ed specialis two rkshop.
If th etrailer coupling isde tach able, itis esse n‐
tial tocom plywith theoper ating instruction sof
th etrailer coupling manufacturer.
Couple anduncouple thetrailer carefull y.Ifyo u
do notcon nectth etra iler totheto wing vehicle
cor rectl y,thetrailer maybecome detach ed.
Obser vethefo llo wing noteson theto ngu e
we ight :
R Donotuse ato ngu ewe ight that exceed sor
fa lls belo wtheper missible tongu ewe ight
R Use ato ngu ewe ight asclos eas possible to
th emaximum tongu ewe ight
Do notex ceed thefo llo wing values:
R Perm issible towing capac ity
R Perm issible rear axle load oftheto wing vehi‐
cle R
Perm issible gross weight oftheto wing vehi‐
cle
R Perm issible gros swe ight ofthetra iler
R Maximum permissible speedofthetrailer
En sur eth efo llo wing beforest ar tin gajo ur ne y:
R The tirepr essur eon there ar axle oftheto w‐
ing vehicle issetfo ra maximu mloa d
R The lighting ofthecon nect edtrailer isoper a‐
tion al
R Vehicl eswithout LEDheadlam psorMUL‐
TIBEA MLED headlam ps:theheadlam ps
ha ve been setcor rectl y
In theeve ntofincr eased rear axle load, theve hi‐
cle/tra ilercombination mustno texc eed amaxi‐
mum speed of62 mph(1 00 km/h) forre ason s
con cerningth eoper ating permit. This also
applies incount ries inwhic hth eper missible
maximum speedforve hicle/tr ailercombinations
is abo ve62 mph(1 00 km/h). At
tac hin gth eball neck &
WARNIN GRisk ofacci dent andinjury
due toan incorrectl yins talled ballcou‐
pling
If th eball coupling isno tins talled and
eng aged cor rectly ,it ma ybeco medetach ed
dur ing trav el and endang erother road user s.
Ther eis arisk offata linj ury. #
Installand secur eth eball coupling as
descr ibedintheball coupling manufac‐
tur er's installation instruct ions . #
When theball coupling hasbeen instal‐
led, ensureth at itis cor rectly secu red
bef oreev erytrip. &
WARNIN GRisk ofacci dent dueto an
inc orrectl yins talled and secur edball
couplin g
If th eball coupling hasnotbeen correctly
ins talled and secur ed,thetra iler can become
de tach ed. 230
Driving andparking