light MERCEDES-BENZ GLB SUV 2021 Repair Manual

R
You do not depress the accelerator or brake
pedal (e xcept for light brake applications).
% Glide mode can also be activated if you ha ve
selected the "Eco" setting forth e drive in the
drive prog ram =.
Glide mode is deactivated again if one of the con-
ditions is no longer met.
V
V ehicles wit
ehicles wit h A
h Activ
ctiv e Dist
e Dist ance Assis
ance Assist DIS t DISTR
TRONIC:
ONIC:
when Active Distance Assist DISTRONIC is acti ve,
th e glide mode function is not available.
Glide mode can also be pr evented bythefo llowing
parame ters:
R Incline
R Downhill gradient
R Temp erature
R Height
R Speed
R Operating status of the engine
R Tra1c situation
% Glide mode can be ended bypressing a steer-
ing wheel gearshiT paddle (/ page 184). F
F
unction of t
unction of t he 4MA
he 4MATIC
TIC
4MATIC ensu resth at all four wheels are driven.
To get her with ESP ®
and 4ETS, 4MATIC impr oves
th e traction of your vehicle whene ver a driven
wheel spins due toinsu1cient traction. Yo
u can display the cur rent distribution of drive
to rque s on all four wheels in the head-up display
and in theright-hand display range of the instru- ment display . The higher
there specti vescale is
/lled, the higher the cor responding drive torque
is.
If yo ufa ilto adapt your driving style, 4MATIC can
neither reduce therisk of an accident nor override
th e la wsof ph ysics. 4MATIC cannot take account
of road, weather and tra1c conditions. 4MATIC is
only an aid. You are responsible especially for
maintaining a safe distance from theve hicle in
front, forve hicle speed, for braking in good time
and for st aying in lane.
% In wintry road conditions, the maximum e.ect
of 4MATIC can be achie ved only if you use
winter tyres (M+S tyres), with snow chains if
necessar y. R R
efuelling
efuelling R
R
efuelling t
efuelling t he v
he vehicle
ehicle &
W
WARNING
ARNING Risk of /re or explosion from
fuel
Fu els are highly 0ammable. 186
186
Driving and parking

#
Never lea vetheve hicle or, if present, the
stationa ryheater running in an enclosed
space without su1cient ventilation. &
W
WARNI NG
ARNI NGRisk of injury bybecoming
trapped when opening and closing a
ga rage door
When you operate or prog ram a garage door
with an integ ratedga rage door opener, per-
sons can become trapped or struck bythe
ga rage door if they stand wi thin its range of
mo vement. #
Always make sure that nobody is within
th era nge of thega rage door's mo ve-
ment. Before prog
ramming thega rage door opener, park
th eve hicle outside thega rage . Make sure that the
ve hicle is switched on but not star ted.
R
R eq
eq uir
uir ements:
ements:
R The vehicle has been par ked outside the
gar age or outside thera nge of mo vement of
th e door. R
The vehicle is switched on.
R The vehicle has not been star ted.
% The garage door opener function is alw ays
av ailable when theve hicle is switched on. #
Press and hold but ton1, 2or3 that you
wish toprog ram.
Indicator lamp 40ashes yello w. %
It can take up to20 seconds before the indi-
cator lamp 0ashes yello w. #
Release the pr eviously pressed button.
Indicator lamp 4continues to0ash yello w. #
Point remo tecont rol5 from a distance of
1 cm to8 cm towa rds button 1,2or3. #
Press and hold button 6ofremo tecont rol
5 until one of thefo llowing signals appears:
R Indicator lamp 4lights up green continu-
ousl y.Prog ramming is comple te.
R Indicator lamp 40ashes green. Prog ram-
ming was successful. Additionall y,syn-
ch ronisation of thero lling code with the
door system must be car ried out. #
If indicator lamp 4does not light up or 0ash
gr een: repeat the procedure. #
Release all of the buttons.
% The remo tecont rolfo rth e door drive is not
included in the scope of delivery of thega rage
door opener. 194
194
Driving and parking

Sync
Sync
hr
hronising tonising t he r
he rolling code
olling code
R
R eq
eq uir
uir ements:
ements:
R The door system uses a rolling code.
R The vehicle must be within range of thega rage
door or door drive.
R The vehicle as well as persons and objects are
located outside thera nge of mo vement of the
door. #
Press the prog ramming button on the door
drive unit.
Initiate the next step within appr oximately
30 seconds. #
Press pr eviously prog rammed button 1,2
or 3 repeatedly until the door closes.
When the door closes, prog ramming is com-
ple ted.
% Please also read the operating inst ructions for
th e door drive.
T
T r
r oubleshoo oubleshoo ting when pr
ting when progr ogramming t
amming t he r
he remo te
emo te
contr
contr ol
ol #
Check if the transmitter frequency of remo te
cont rol5 is suppor ted. #
Replace the batteries in remo tecont rol5. #
Hold remo tecont rol5 atvarious angles from
a distance of 1 cm to8 cm front of the inside
re arview mir ror.Yo u should test every position
fo r at least 25 seconds before trying ano ther
position. #
Hold remo tecont rol5 atthe same angles at
va rious distances in front of the inside rear
view mir ror.Yo u should test every position for
at least 25 seconds before trying ano ther
position. #
Onremo tecont rolsth at transmit only for a
limited period, press button 6onremo te
cont rol5 again before transmission ends. #
Angle the aerial line of thega rage door opener
unit towa rdsth ere mo tecont rol.
% It is possible that older garage doors cannot
be operated using there mo tecont rol in the
inside rearview mir roreve n aTer you ha ve
successfully per form ed the measures descri-
bed abo ve. If this is the case, contact the
HomeLink ®
Hotline. %
Support and additional information on pro-
gramming:
R Onthe HomeLink ®
Hotline on (0) 08000
466 354 65 or +49 (0) 6838 907-277
R Onthe Internet at https://
www.homelink.com
Opening or closing t
Opening or closing t he g he gar
arag
ag e door
e door
R
R eq
eq uir
uir ements:
ements:
R The cor responding button is prog rammed to
operate the door. #
Press and hold buttons 1,2or3 until the
door opens or closes. #
If indicator lamp 40ashes yellow aTer
appr oximately 20 seconds: press and hold the
pr ev iously pressed button again until the door
opens or closes.
Clear
Clear ing t
ing the g
he gar
arag
ag e door opener memory
e door opener memory #
Press and hold buttons 1and 3.
Indicator lamp 4lights up yello w. #
If indicator lamp 40ashes green: release
buttons 1and 3.
The entire memory has been dele ted. Driving and parking
195
195

Electr
Electr
ic par
ic parking br
king br ake
ake F
F
unction of t
unction of t he electr
he electric par
ic parking br
king br ak
ake (appl
e (appl ying
ying
aut
aut omaticall
omaticall y)
y) &
W
WARNING
ARNING Risk of accident and injury due
to leaving children unattended in theve hi-
cle
If ch ildren are leT unattended in theve hicle,
th ey could, in particular:
R open doors, thereby endangering other
persons or road users.
R get out and be struck byoncoming tra1c.
R operate vehicle equipment and become
trapped, forex ample.
In addition, thech ildren could also set the
ve hicle in motion by,fo rex ample:
R releasing the parking brake.
R changing the transmission position.
R starting theve hicle. #
Never lea vechildren unattended in the
ve hicle. #
When leaving theve hicle, alw aysta ke the
ke y with you and lock theve hicle. #
Keep theve hicle key out of there ach of
ch ildren. The electr
The electr
ic par
ic parking br
king br ak
ake is applied if t
e is applied if t he tr
he trans-
ans-
mission is in position
mission is in position j
jand one of t
and one of t he f
he follo
ollowing
wing
conditions is
conditions is ful/lled:
ful/lled:
R The vehicle is switched o..
R The seat belt tongue is not inse rted in the seat
belt buckle of the driver's seat and the driver's
door is opened.
% Toprev ent application: pull the handle of the
electric parking brake (/ page 197).
In t
In t he f
he f ollo
ollowing situations, t
wing situations, t he electr
he electric par
ic parking
king
br
br ak
ak e is also applied:
e is also applied:
R The HOLD function is keeping theve hicle sta-
tionar y.
R Active Parking Assist is keeping theve hicle
stationar y.
R Active Distance Assist DISTRONIC is bringing
th eve hicle toa standstill. R
In addition, one of t
In addition, one of t he f
he follo
ollowing conditions
wing conditions
mus
mus t be
t be ful/lled:
ful/lled:
- The vehicle is switched o..
- The seat belt tongue is not inse rted in the
seat belt buckle of the driver's seat and
th e driver's door is opened.
- There is a system malfunction.
- The po wer supply is insu1cient.
- The vehicle is stationary for a lengt hy
period.
When the electric parking brake is applied, the
re d! indicator lamp lights up in the inst ru-
ment cluster.
% The electric parking brake is not automatically
applied if theve hicle is switched o. bythe
ECO start/s top function.
F
F unction of t unction of t he electr
he electric par
ic parking br
king br ak
ake (r
e (r eleasing
eleasing
aut
aut omaticall
omaticall y)
y)
The electr
The electr ic par
ic parking br
king br ak
ake is r
e is r eleased when t
eleased when t he
he
f
f ollo
ollo wing conditions ar
wing conditions ar e
eful/lled:
ful/lled:
R The driver's door is closed.
R The vehicle has been star ted. 196
196
Driving and parking

R
Ifth e transmission is in position k,theta il-
ga te must be closed.
R The seat belt tongue is inse rted into the seat
belt buckle of the driver's seat.
If th e seat belt tongue is not inse rted into the
seat belt buckle of the driver's seat, one of the
fo llowing conditions must be ful/lled:
- You shiT from transmission position j.
or
- You ha veprev iously driven at speeds
gr eater than 3 km/h.
When the electric parking brake is released, the
re d! indicator lamp in the inst rument cluster
goes out. Appl
Appl ying/r
ying/r eleasing t
eleasing t he electr
he electric par
ic parking br
king br ake
ake
manually
manually
Appl Appl ying
ying #
Push handle 1.
The red! indicator lamp lights up in the
inst rument cluster. %
The electric parking brake is only securely
applied if there d! indicator lamp is lit
continuousl y.
R R eleasing eleasing #
Switch on theve hicle. #
Pull handle 1.
The red! indicator lamp in the inst rument
cluster goes out.
Emerg
Emerg ency br
ency br aking
aking #
Press and hold handle 1.
As long as theve hicle is in motion, the
Release parking brake message is displayed
and there d! indicator lamp 0ashes.
When theve hicle has been braked toa stand-
still, the electric parking brake is applied. The
re d! indicator lamp lights up in the inst ru-
ment cluster. Inf
Inf
or
ormation on collision det
mation on collision det ection on a park
ection on a parked
ed
v
v ehicle
ehicle If a collision is de
tected when theto w- awa y pro-
te ction is primed on a loc kedve hicle, you will Driving and parking
197
197

4
Front camera
5 Corner radars
6 Ultrasonic sensors
7 Reversing camera &
W
WARNING
ARNING Risk of accident due torestric-
te d de tection per form ance of vehicle sen-
sors and cameras
If th e area around vehicle senso rsor cameras
is co vered, damaged or dirty, cer tain driving
and saf ety sy stems cannot function co rrectl y.
There is a risk of an accident. #
Keep the area around vehicle senso rsor
cameras clear of any obst ructions and
clean. #
Have damage tothe bumper, radiator
gr ille or stone chipping in the area of the
front and rear wind owsre paired at a
qu ali/ed specialist workshop. Pa
rticular ly,ke ep the areas around the sensors
and cameras free of dirt, ice or slush
(/ page 324). The sensors and cameras must not be co
vered and the de tection ranges around
th em must be kept free. Do not at tach additional
licence plate brac kets, advertisements, stic kers,
fo ils or foils toprotect against stone chippings in
th e de tection range of the sensors and cameras.
Make sure that there are no overhanging loads
pr otru ding into the de tection range.
If th ere is damage toa bumper or thera diator
gr ille, or aTer an impact, ha vethe function of the
senso rschecked at a quali/ed specialist work-
shop. Ha vedamage or stone chipping in the area
of the cameras on the front and rear wind ows
re paired at a quali/ed specialist workshop. Ov Ov
er
ervie
vie w of dr
w of dr iving syst
iving syst ems and dr
ems and dr iving safe
iving safety
ty
syst
syst ems
ems R
ABS (A Anti-lock B Braking S System) (/ page 201)
R O.-road ABS (/ page 201)
R BAS (BBra ke AAssist S System) (/ page 201)
R ESP ®
(EElectronic S Stability P Program)
(/ page 202)
R ESP ®
Crosswind Assist (/ page 203) R
ESP ®
trailer stabilisation (/ page 203)
R EBD (E Electronic B Brakeforc e DDistribution)
(/ page 204)
R STEER CONTROL (/ page 204)
R HOLD function (/ page 204)
R Hill Start Assist (/ page 206)
R Adaptive Brake Lights (/ page 206)
R Start-o. assist (/ page 206)
R ATTENTION ASSIST (/ page 207)
R Cruise cont rol (/ page 208)
R Limiter (/ page 209)
R Tra1c Sign Assist (/ page 228)
R Speed Limit Assist (countr y-dependent)
(/ page 226)
R Suspension with adaptive damping adjustment
(/ page 235)
Dr
Dr iving Assist iving Assist ance pack
ance package
age
The following functions are part of the Driving
Assistance Package. Cer tain functions are only
av ailable in some countries. Some functions are 200
200
Driving and parking

also
available without the Driving Assistance
Pa ckage, albeit with restric ted functionality.
R Active Distance Assist DISTRONIC
(/ page 211)
R Active Speed Limit Assist (countr y-dependent)
(/ page 216)
R Route-based speed adap tation (countr y-
dependent) (/ page 216)
R DSR (DD ow nhill S Speed R Regulation)
(/ page 218)
R Active Brake Assist (/ page 222)
R Active Steering Assist (countr y-dependent)
(/ page 219)
R Active Emer gency Stop Assist (countr y-
dependent) (/ page 221)
R Blind Spot Assist and Active Blind Spot Assist
with exitwa rning (/ page 230)
R Active Lane Keeping Assist (/ page 232)
P
P ar
ar king P
king P ack
ackage
age
R Reversing camera (/ page 235)
R 360° Camera (/ page 238) R
Parking Assist PARKTRONIC (/ page 241)
R Active Parking Assist (/ page 246) F
F
unctions of ABS
unctions of ABS The Anti-lock Brake System (ABS)
regula testhe
brake pressure in critical driving situations:
R During braking, for instance, at maximum full-
stop braking or if there is insu1cient tyre trac-
tion, the wheels are pr evented from locking.
R Vehicle steerability while braking is ensu red.
If ABS inter venes when braking, you will feel a
pulsing in the brake pedal. The pulsating brake
pedal can be an indication of hazardous road con-
ditions and can ser veas a reminder totake extra
care while driving.
Syst Syst em limits
em limits
R ABS is acti vefrom speeds of approx. 5 km/h.
R ABS may be impaired or may not function if a
malfunction has occu rred and theye llow !
ABS warning lamp lights up continuously aTer
th eve hicle is star ted. F F
unctions of
unctions of O.-r
O.-road
oad ABS
ABS %
O.-road ABS is activated automatically when
yo u select theF drive prog ram.
O.-road ABS is specially adap tedfo r driving o.-
ro ad:
R The front wheels lock cyclical lyduring braking.
R The braking distance is shor tened due tothe
digging-in e.ect.
Syst
Syst em limits
em limits
R O.- road ABS functions at speeds below
40 km/h.
R If O.-road ABS inter venes, the ability tosteer
ma y be restric ted. F
F
unction of B
unction of B AS
AS &
W
WARNING
ARNING Risk of an accident caused by a
malfunction in BAS(Brake Assist System)
If BAS is malfunctioning, the braking distance
in an emer gency braking situation is
increased. Driving and parking
201
201

#
Depress the brake pedal with full forc e in
emer gency braking situations. ABS pre-
ve nts the wheels from locking. The Brake Assist System (BAS) supports
your
emer gency braking situation with additional brake
fo rc e.
If yo u depress the brake pedal quickl y,BAS is
activated:
R BAS automatically boosts the brake pressure.
R BAS can shor tenth e braking distance.
R ABS pr events the wheels from locking.
The brakes will function as usual once youre lease
th e brake pedal. BASis deactivated. F
F
unctions of ESP
unctions of ESP ®
®&
W
WARNING
ARNING Risk of skidding if ESP ®
is
deactivated
If yo u deactivate ESP ®
, ESP ®
cannot car ryout
ve hicle stabilisation. #
ESP ®
should only be deactivated in the
fo llowing situations. *
N
NOOTE
TE Mercedes-AMG vehicles #
Obser vethe no tes in the Supplement.
Yo u could otherwise failto recognise
dangers. The Electronic
Stability Prog ram (ESP ®
) can moni-
to r and impr ove driving stability and traction in
th efo llowing situations within ph ysical limits:
R When pulling away on wet or slippery car riage-
ways.
R When braking.
If th eve hicle deviates from the direction desired
by the driver, ESP ®
can stabilise theve hicle by
inter vening in thefo llowing ways:
R One or more wheels are braked.
R The engine output is adap ted according tothe
situation. ESP
®
is deacti vated if theå ESP®
OFF warn-
ing lamp lights up continuously in the inst rument
cluster:
R Driving stability will no longer be impr oved.
R The drive wheels could spin.
R ETS/4ETS traction control is still active.
% When ESP ®
is deactivated, you are still assis-
te dby ESP ®
when braking.
If th e÷ ESP®
wa rning lamp 0ashes in the
inst rument cluster, one or se veral wheels has
re ached its grip limit:
R Adapt your driving style tosuit the cur rent
ro ad and weather conditions.
R Do not deactivate ESP ®
.
R Only depress the accelerator pedal as far as is
necessary when pulling away.
It can be advantageous todeactivate ESP ®
in the
fo llowing situations toimpro vetraction:
R When using snow chains.
R In deep sno w.
R On sand or grav el. 202
202
Driving and parking

%
Spinning the wheels results in a cutting
action, which enhances traction.
If th e÷ ESP®
wa rning lamp lights up continu-
ousl y,ESP ®
is not available due toa malfunction.
Obser vethefo llowing information:
R Indicator and warning lamps (/ page 442)
R Display message s (/page 385)
ET
ET S/4ET
S/4ET S (Electr
S (Electr onicTr
onic Traction Syst
action Syst em)
em)
ETS/4ETS traction cont rol is part of ESP ®
and
makes it possible topull away and accelerate on a
slippery car riag ew ay.
If yo u select theF drive prog ram, a special
ETS system speci/cally suited too.-road terrain
is automatically activated.
ETS/4ETS can impr ovetheve hicle's traction by
inter vening in thefo llowing ways:
R The drive wheels are braked individually if they
spin.
R More drive torque is tr ansferredto the wheel
or wheels with traction. In0uence In0uence
of dr
of driv
ive pr
e pr ogr
ograms on ESP
ams on ESP ®
®
The drive prog rams enable ESP ®
to adapt todif-
fe re nt we ather and roadconditions as well as the
driver's prefer red driving style. Depending on the
selected drive prog ram, the appropriate ESP ®
mode will be activated. You can select the drive
prog rams using theDY NAMIC SELECT switch
(/ page 180). F
F
unction of ESP
unction of ESP ®
®
Cr
Cr osswind Assist
osswind Assist ESP
®
Crosswind Assist de tects sudden gusts of
side wind and helps the driver tokeep theve hicle
in the lane:
R ESP ®
Crosswind Assist is active at vehicle
speeds between appr ox. 75 km/h and
200 km/h when driving straight ahead or cor-
nering slightl y.
R The vehicle is stabilised bymeans of individual
brake application on one side. F
F
unction of ESP
unction of ESP ®
®
tr
trailer st
ailer st abilisation
abilisation &
W
WARNING
ARNING Risk of accident in poor road
and weather conditions
In poor road and weather conditions, the
trailer stabilisation cannot pr event lur ching of
th eve hicle/trailer combination. Trailers with a
high cent reofgrav ity may tip over before
ESP ®
de tects this. #
Always adapt your driving style tosuit
th e cur rent road and weather conditions. When driving with a trailer, ESP
®
can stabilise
yo ur vehicle if the trailer begins toswer vefrom
side toside:
R ESP ®
trailer stabilisation is active abo ve
speeds of 65 km/h.
R Slight swerving is reduced bymeans of a tar-
ge ted, individual brake application on one
side.
R Intheev ent of se vere swerving, the engine
output is also reduced and all wheels are
braked. Driving and parking
203
203

ESP
®
trailer stabilisation may be impaired or may
not function if:
R The trailer is not connected cor rectly or is not
de tected proper lyby theve hicle. A
A
ctiv
ctiv ating/deactiv
ating/deactiv ating ESP
ating ESP®
®
(Electr
(Electr onicSt
onic Stability
ability
Pr
Pr ogr
ogr am)
am) Multimedia system:
4 © 5
Settings 5
Quick access
% ESP®
can only be activated/deactivated using
qu ick access when at least one other function
is available in quick access. ESP ®
can other-
wise be found in theAssistance menu.
* N
NO OTE
TE Mercedes-AMG vehicles #
Obser vethe no tes in the Supplement.
Yo u could otherwise failto recognise
dangers. #
Select ESP. #
Select Onorå Off. ESP
®
is deactivated if theå ESP®
OFF warn-
ing lamp lights up continuously in the instrument
cluster.
Obser vethe information on warning lamps and
display message s which may be shown in the
inst rument cluster. F F
unction of EBD
unction of EBD Electronic Breakforce Distribution (EBD) is
char-
acterised bythefo llowing:
R Monitoring and regulating the brake pressure
on there ar wheels.
R Impr oved driving stability when braking, espe-
cially on bends. F F
unction of S
unction of S TEER C
TEER CONTR
ONTROL
OL ST
EER CONTROL assists youby transmitting a
noticeable steering forc eto the steering wheel in
th e direction requ ired forve hicle stabilisation. This steering
recommendation is given in thefo l-
lowing situations:
R both right wheels or bo thleT wheels are on a
we t or slippery road sur face when you brake
R theve hicle starts toskid
Sy
Sy st stem limits
em limits
ST EER CONTROL may be impaired or may not
function in thefo llowing situations:
R ESP ®
is deactivated.
R ESP ®
is malfunctioning.
R The steering is malfunctioning.
If ESP ®
is malfunctioning, you will be assisted fur-
th er by the electric po wer steering. HOLD function
HOLD function
HOLD function
HOLD function
The HOLD function holds
theve hicle at a stand-
still without requ iring youto depress the brake
pedal, e.g. while waiting in tra1c. 204 204
Driving and parking