2021 MERCEDES-BENZ GLC COUPE trailer

display in
the Instrument Display is alw ays upda‐
te d when theve hicle is le vel with the tra ffic sign.
If th ere is no speed restriction on an unlimited
st re tch of road (e.g. on a mo torw ay),th ere com‐
mended speed is auto maticallyadop ted as the
st ored speed. The sy stem uses the speed stored
on an unlimited stre tch of road as there com‐
mended speed. If you do not alter thestored
speed on an unlimited stre tch of road, there c‐
ommended speed is 130 km/h.
If Ac tive Dis tance Assi stDISTRONIC has been
put into passi vemode bypressing the accelera‐
to r pedal, only speed limits which are higher
th an the set speed are adop ted.
Obser vethe no tes on driving sy stems and your
re sponsibility; you may otherwise failto recog‐
nise dangers (/ page 184).
Sy stem limits
The sy stem limits of Traf fic Sign Assi stapply to
th e de tection of traf fic signs (/ page 210).
Speed limits bel ow20 km/h are not auto mati‐
cally adop tedby the sy stem as thestored speed.
Te mp orary speed restrictions (e.g. for a cer tain
time or due towe ather conditions) cannot be proper
ly detected bythe sy stem. The maximum
permissible speed applying toave hicle with a
trailer is not de tected bythe sy stem.
Ad just the speed in these situations. &
WARNING Risk of accident due toActive
Speed Limit Assi stadapting theve hicle's
speed
The speed adop tedby Active Speed Limit
Assi stmay be too high or incor rect in some
individual cases, su chas:
R at speed limits below 20 km/h
R inwe t conditions or in fog
R when towing a trailer #
Ensure that the driven speed complies
with traf fic re gulations. #
Adjust the driving speed tosuit cur rent
traf fic and weather conditions. Fu
nction of route-based speed adaptation
When Active Dis tance Assi stDISTRONIC is acti‐
va ted, theve hicle speed will be adap ted accord‐
ingly tothero ute events ahead. Depending on th
e drive prog ram selected, theve hicle negoti‐
ates a route event ahead in an economical, com‐
fo rtable or dynamic manner. When thero ute
eve nt has been passed, theve hicle accelerates
again tothestored speed. The set dis tance to
th eve hicle in front, vehicles de tected ahead and
speed restrictions ahead are take n into account.
Yo u can activate and deactivate route-based
speed adap tation in the multimedia sy stem
(/ page 202).
The following route events are take n into
account:
R Bends
R T-junctions, roundabouts and tollst ations
R Turns and exits
R Traf fic jams ahead (only wi thLive Traf fic
Information )
% When theto llst ation is reached, Active Dis‐
ta nce Assi stDISTRONIC adopts the speed as
th estored speed. Driving and parking
201

Also,
the speed is reduced if the turn signal indi‐
cator tochange lanes is swit ched on and one of
th efo llowing situations is de tected:
R Turning off at junctions
R Driving on slowing-down lanes
R Driving on lanes adjacent toslowing-down
lanes
The driver is responsible forch oosing theright
speed and observing other road users. This
applies in particular tojunctions, roundabouts
and traf fic lights, as route-based speed adap ta‐
tion does not brake theve hicle toast andstill.
When route guidance is active, thefirs t speed
adjustment is car ried out automaticall y.Ifthe
turn signal indica tor is switched on, the selected
ro ute is confirmed and fur ther speed adjustment
is activated.
Speed adap tation is cancelled in thefo llowing
cases:
R Ifth e turn signal indicator is switched off
before thero ute event.
R Ifth e driver depresses the accelerator or
brake pedal during the process. Sy
stem limits
Ro ute-based speed adap tation does not take
ri ght of wayre gulations into account. The driver
is responsible for complying with road traf fic
re gulations and driving at a suitable speed.
The speed adap tation made bythe sy stem may
not alw ays be suitable, particular lyin thefo llow‐
ing situations:
R thero ad's course not clear lyvisible
R road nar rowing
R varying maximum permissible speeds in indi‐
vidual lanes, forex ample at tollst ations
R wetro ad sur faces, snow or ice
R when towing a trailer
In these situations the driver must inter vene
acco rding ly. &
WARNING Risk of accident in spite of
ro ute-based speed adap tation
Ro ute-based speed adap tation can malfunc‐
tion or be temp orarily una vailable in thefo l‐
lowing situations: R
Ifth e driver does not follow the calcula‐
te dro ute
R If map data is not up-to-date or available
R Intheeve nt of roadwor ks
R In bad weather or road conditions
R Ifth e accelera tor pedal is depressed
R Intheeve nt of electronical lydispla yed
speed limitations #
Adapt the speed tothe traf fic situation. Setting
route-based speed adaptation
Re quirements:
R Active Dis tance Assi stDISTRONIC is acti va‐
te d.
R ECO Assist is active. 202
Driving and parking

If
th e driver does not react tothewa rning for a
considerable period, the sy stem can initiate an
emer gency stop (/ page 205).
The warning is not issued or is stopped when the
driver gives con firm ation tothe sy stem:
R The driver steers theve hicle.
R Depending on the count ry:th e driver
presses a steering wheel button or operates
To uch Control
If Ac tive Steering Assist de tects that a sy stem
limit has been reached, a visual warning is
issued and a warning tone sounds.
Obser vethe no tes on driving sy stems and your
re sponsibility; you may otherwise failto recog‐
nise dangers (/ page 184).
Sy stem limits
Ac tive Steering Assist has a limited steering tor‐
qu efo r lateral guidance. In some cases, the
st eering inter vention is not su fficient tokeep the
ve hicle in the lane or todrive thro ugh exits. The sy
stem may be impaired or may not function
in thefo llowing ins tances:
R The reis poor visibilit y,e.g. due tosno w,rain,
fo g, heavy spr ay, greatly varying light condi‐
tions or strong shado wsonthe car riag ewa y.
R There is glare, e.g. from oncoming traf fic,
di re ct sunlight or reflections.
R Insuf ficient road illumination.
R The windsc reen is dirty, mis ted up, damaged
or co vered in the vicinity of the camera, e.g.
by ast icke r.
R No, or se veral, unclear lane markings are
present for one lane, or the markings change
qu ickl y,forex ample, in a con stru ction area
or junctions.
R The lane markings are wornaw ay, dark or
co vered up, e.g. bydirt or sno w.
R Ifth e dis tance totheve hicle in front is too
short and thus the lane markings cann otbe
de tected.
R The road is nar rowand winding.
R There are obs tacles on the lane or projecting
out into the lane, such as object mar kers. The sy
stem does not pr ovide assis tance in the
fo llowing conditions:
R On tight bends and when turning.
R When crossing junctions.
R Atroundabouts or tollst ations.
R When towing a trailer.
R When the tyre pressure is too lo w. &
WARNING Risk of accident if Active
St eering Assist unexpectedly stops func‐
tioning
If th e sy stem limits of Active Steering Assist
are reached there is no guarantee that the
sy stem will remain active or will keep the
ve hicle in lane. #
Alw ayske ep your hands on thesteering
wheel and obser vethe tra ffic carefull y. #
Alw aysst eer theve hicle paying atten‐
tion totraf fic conditions. 204
Driving and park ing

tion off. The
exitwa rning is no longer available
once thewa rning lamp in the outside mir ror
fl ashes thre e times.
The exitwa rning is only an aid and not a substi‐
tute forth e attention of vehicle occupants. The
re sponsibility for opening and closing the doors
and for leaving theve hicle remains with theve hi‐
cle occupants.
Sy stem limits
Blind Spot Assist and Active Blind Spot Assi st
may be limi ted in thefo llowing situations, in par‐
ticular:
R ifth ere is dirt on the sensors or the sensors
are obscured
R in poor visibility, e.g. due tofog, heavy rain or
snow
R ifth ere are nar row vehicles, e.g. bicycles or
mo torbikes
R ifth ero ad has very wide or nar rowlanes
R ifve hicles are not driving in the middle of
th eir lane Wa
rnings may be issued in er ror when driving
close tocrash barr iers or similar continuous lane
borders. Alw ays make sure that there is suf fi‐
cient dist ancetothe side forot her traf fic or
obs tacles.
Wa rnings may be inter rupte d when driving along‐
side long vehicles, forex ample lor ries, for a pro‐
longed time.
Blind Spot Assist is not operational when reve rse
ge ar is engaged.
Blind Spot Assist and theex itwa rning are not
operational when a trailer is coupled totheve hi‐
cle and the electrical connection has been cor‐
re ctly es tablished.
The exitwa rning may be limited in thefo llowing
situations:
R when the sensors are co veredby adjacent
ve hicles in nar row parking spaces
R when people approach theve hicle
R intheeve nt of stationary or slowly moving
objects Fu
nction of brake application (Active Blind
Spot Assist)
If Ac tive Blind Spot Assi stdetects a risk of a side
impact in the monitoring range, a cou rse-cor‐
re cting brake application is car ried out. This is
designed tohelp youavo id a collision.
The course-cor recting brake application is availa‐
ble in the speed range between appr oximately
30 km/h and 200 km/h. &
WARNING Risk of accident despite
brake application of Active Blind Spot
Assi st
A cou rse-co rrecting brake application cann ot
alw ays pr event a collision. #
Alw aysst eer, brake or accelera teyour‐
self, especially if Active Blind Spot
Assi stwa rnsyo u or makes a course-
co rrecting brake application. #
Alw ays maintain a safe dis tance at the
sides. 214
Driving and pa rking

If a course-cor
recting brake application occurs,
th ere dwa rning lamp flashes in the outside mir‐
ro r and a warning tone sounds. In addition, a dis‐
pl ay 1 indicating the danger of a side collision
appears in the multifunction displa y.
In rare cases, the sy stem may make an inappro‐
priate brake application. This brake application
may be inter rupte d at any time if yousteer
slightly in the opposite direction or accelera te.
Sy stem limits
No tethe sy stem limitations of Active Blind Spot
Assi st;yo u may otherwise not recognise the
dangers (/ page213). Either a cou
rse-co rrecting brake application
appropriate tothe driving situation, or none at
all, may occur in thefo llowing situations:
R Vehicles or obs tacles, e.g. crash barr iers, are
located on bo thsides of your vehicle.
R Ave hicle approaches too closely on the side.
R You ha veadop ted a sporty driving style with
high cornering speeds.
R You brake or accelerate significantl y.
R A driving sa fety sy stem inter venes, e.g. ESP ®
or Active Brake Assi st.
R ESP ®
is deacti vated.
R A loss of tyre pressure or a defective tyre is
detected.
R You are driving with a trailer and the electri‐
cal connection tothe trailer hitch has been
cor rectly es tablished.
Ac tivating/deactivating Blind Spot Assi stor
Ac tive Blind Spot Assi st
Multimedia sy stem:
4 © 5
Settings 5
Assistance #
Activate or deacti vate Blind Spot Assist .or #
Activate or deacti vate Act. Blind Spot Assist . Ac
tive Lane Keeping Assist Fu
nction of Active Lane Keeping Assist
Ac tive Lane Keeping Assist monitors the area in
front of your vehicle bymeans of the multifunc‐
tion camera (/ page184). It ser vesto protect
yo u against unin tentionally le aving your lane.
Yo u will be warned byvibration pulses in the
st eering wheel and guided bya course-cor rect‐
ing brake application back intoyour lane.
Ac tive Lane Keeping Assist is available in the
speed range between 60 km/h and 200 km/h.
Ac tive Lane Keeping Assist can neither reduce
th erisk of an accident if youfa ilto adapt your
driving style nor override the la wsof ph ysics. It
cannot take into account road, weather or traf fic
conditions. Active Lane Keeping Assist is only an
aid. You are responsible for maintaining a safe
dis tance totheve hicle in front, forve hicle
speed, for braking in good time and forst ay ing
in lane. Driving and parking
215

If a lane-cor
recting brake application occurs , dis‐
play 1appears in the multifunction displa y.
The sy stem does not apply the brake if you acti‐
va te the turn signal indicator.
Ve hicles with Driving Assistance Package: if
th e sy stem de tects an obs tacle, such as ano ther
ve hicle in the adjacent lane, it will apply the
brake rega rdless of the turn signal indicator.
Yo u are warned byvibrations in thesteering
wheel in thefo llowing circums tances:
R Active Lane Keeping Assist de tects a lane
marking.
R A front wheel drives over this lane marking. Conditions
for a course-cor recting brake
application (vehicles without Driving Assis‐
tance Package)
Lane markings weredetected on bo thsides of
th e lane. The front wheel drives over a continu‐
ous lane marking.
% A brake application may be inter rupte d at
any time if yousteer slightly in the opposite
direction.
Conditions for a course-cor recting brake
application (vehicles with Driving Assistance
Pa ckage)
R A continuous lane marking was de tected and
driven over with the front wheel.
R A lane marking and an approaching vehicle,
an overtaking vehicle or vehicles driving par‐
allel to yo urvehicle weredetected in the
adjacent lane. The front wheel drives over
th e lane marking.
% A brake application may be inter rupte d at
any time if yousteer slightly in the opposite
direction. Sy
stem limits
No lane-cor recting brake application occurs in
th efo llowing situations:
R You clear lyand actively steer, brake or accel‐
erate.
R If a driving saf ety sy stem inter venes, su chas
ESP ®
,Ac tive Brake Assi stor Active Blind
Spot Assi st.
R You ha veadop ted a sporty driving style with
high cornering speeds or high rates of accel‐
eration.
R When ESP ®
is deactivated.
R When driving with a trailer, the electrical con‐
nection tothe trailer has been cor rectly
es tablished.
R If a loss of tyre pressure or a defective tyre is
detected and display ed.
If yo u deactivate theAc tive Lane Keeping Assist
wa rning and the lane markings cann otbe clearly
de tected, it is possible that no lane-cor recting
brake application take s place (/ page217). 216
Driving and pa rking

AIR BODY
CONTROL is an air suspension sy stem
with variable damping for impr oved driving com‐
fo rt. The all-round le vel control sy stem ensures
th e best possible suspension and const ant
ground clearance, even wi tha laden vehicle.
When driving at speed, theve hicle is lo wered
automatically toimpr ovedriving saf ety and to
re duce fuel consum ption. You also ha vethe
option of manually adjusting theve hicle le vel.
AIR BODY CONTROL includes thefo llowing com‐
ponents and functions:
R air suspension with variable spring rate
R automatic le vel control sy stem
R speed-dependent lo wering toreduce fuel
consum ption
R manually selec table high-le vel setting for
grea ter ground clea rance
R ADS PLUS (Ada ptive Damping Sy stem with
const ant damping forc e adjustment)
R DYNA MIC SELECT switch and le vel button Suspension setting and
vehicle le vel per
drive prog ram
Drive prog ram A:
R The suspension setting is comfor table.
R The vehicle is set tothe normal le vel.
R When driving at speeds abo veappr oximately
13 8 km/h, theve hicle is lo wered.
R When driving at speeds below appr oximately
80 km/h, theve hicle is raised again.
Drive prog ram ;:
R The suspension setting is comfor table.
R The vehicle is set tolow le vel -1.
R The vehicle is not lo wered any fur ther if you
are tr avelling at higher speeds.
Drive prog ram C:
R The suspension setting is firm er.
R The vehicle is set tolow le vel -1.
R The vehicle is not lo wered any fur ther if you
are tra velling at higher speeds. Drive prog
ram B:
R The suspension setting is evenfirm er.
R The vehicle is set tolow le vel -1.
R The vehicle is not lo wered any fur ther if you
are tra velling at higher speeds.
Individual suspension settings can be called up
in drive progra m= (/page 165).
% Operation with a trailer or bicyclerack:if
transpo rtequipment, such as a trailer or a
bicycle rack , is attached tothe trailer hitch
and the electrical connection has been cor‐
re ctly es tablished, theve hicle remains at
normal le vel ir respective of speed.
Dif fere nces between diff erentvehicle le vels
compared tothe normal le vel (0):
R High le vel +1: approximately +15 mm (Bra‐
zil: appr oximately +30 mm)
R Low le vel -1: approximately -15 mm 218
Driving and pa rking

Ra
ising theve hicle #
Press button 1.
Indicator lamp 2lights up.
The vehicle is set tohigh le vel +1.
Yo ur selection is sa ved.
The vehicle is automatical lylowe red again
in the following situations: R
When driving fasterthan 120 km/h.
R When driving between 80 km/h and
120 km/h for appro ximately thre e minutes.
R Afterch anging a drive prog ram using the
DY NA MIC SELECT switch.
The vehicle is adjus tedto the height of the last
active drive prog ram.
Lo weri ngtheve hicle #
Press button 1.
Indica tor lamp 2goes out. The vehicle is
adjus tedto the height of the active drive pro‐
gram.
Lo weri ng and raising there ar of theve hicle &
WARNING Risk of entrapment from vehi‐
cle lo wering
When lo wering theve hicle, other people
could become trapped if their limbs are
between theve hicle body and the tyres or
underneath theve hicle. #
Make sure no one is underneath the
ve hicle or in the immediate vicinity of th
e wheel ar ches when theve hicle is
being lo wered. Re
quirements:
R allvehicle doors are closed
R there is no trailer coupled
R there is no bicycle rack fitted
R the battery is suf ficiently charge d (if neces‐
sar y,start the engine) 220
Driving and parking