2019 MERCEDES-BENZ GLB SUV ECU

#
Open the soc ket cap. #
Inse rtthe plug with lug 1in groo ve3 on
th e soc ket. #
Turn the ba yonet coupling 2totheright as
fa r as it will go. #
Let the cap engage. #
Secure the cable tothe trailer with cable ties
(only if you are using an adap ter cable). #
Make sure that the cable is alw ays slack for
ease of mo vement during cornering. Under
thefo llowing conditions, a message may
appear on the multifunction display even if the
trailer has been connected cor rectly:
R LEDs ha vebeen ins talled in the trailer light‐
ing sy stem
R The cur rent has fallen below the trailer light‐
ing sy stem's minimum cur rent (50 mA)
% Accessories can be connected tothe perma‐
nent po wer supp lyup to180 W and tothe
po we r supp lythat is swit ched on via the igni‐
tion loc k.
Un coupling a trailer &
WARNING Risk of being crushed and
becoming trapped when uncoupling a
trailer
When uncoupling a trailer wi than engaged
ine rtia-activated brake, your hand may
become trapped between theve hicle and the
trailer dr awbar. #
Do not uncouple trailers with an
engaged overrun brake. *
NO
TEDama gewhen uncoupling in a
st ate of overrun Uncou
pling in a state of overru n can dama ge
th eve hicle. #
Do not uncouple trailers with an
engaged overrun brake. #
Secu rethe trailer against rolling away. #
Disconnect the electrical connection
between theve hicle and the trailer. #
Uncouple the trailer. #
Place the co ver on the ball head. Bicycle
rackfunction &
WARNING Risk of an accident when
using the bicycle rack incor rectly
The bicycle rack may become de tach ed from
th eve hicle in thefo llowing cases:
R the permissible load capacity of the
trailer hitch is exceeded. Driving and pa
rking 291

R
the bicycle rack is used incor rectly.
R the bicycle rack is secured tothe ball
neck beneath the ball head.
Obser vethefo llowing foryo ur ow n sa fety
and that of other road users: #
always adhere tothe permissible load
capacity of the trailer hitch. #
only use the bicycle rack totranspo rt
bicycles. #
always proper lysecure the bicycle rack
by attaching it tothe ball head. #
only use bicycle rack s appr ovedby
Mercedes-Benz. #
always obser vethe bicycle rack operat‐
ing instructions. *
NO
TEDama geto, or cra cks on, the
trailer hitch due tounsuitable bic ycle
ra ck s or bicycle rack s being used incor‐
re ctly #
use only bicycle rack s appr ovedby
Mercedes-Benz. Depending on
the bicycle rack 's design, up to
th re e bicycles can be transpor ted on the bicycle
ra ck.
When mounted byattaching toball head 1,the
maximum load capacity is 75kg.
The load capacity is calculated from thewe ight
of the bicycle rack and the bicycle rack load.
The vehicle's driving characteristics will change
when a bicycle rack isfitted. Adapt your driving st
yle according ly. Drive carefully and maintain a
sa fe dis tance.
When using a bicycle rack , set the tyre pressure
fo r maximum loading on there ar axle of the
ve hicle. Further information on the tyre pressure
can be found in the tyre pressure table
(/ page 526).
Note s on loading
The lar gerth e dis tance between the load's
cent reof gr avity and the ball head, the greater
th e load on the trailer hitch.
Therefore, obser vethefo llowing no tes:
R mount heavy bicycles as close totheve hicle
as possible
R always distribute the load on the bicycle rack
as evenly as possible across theve hicle's
longitudinal axis
Mercedes-Benz recommends removing all
de tach able parts from bicycles (e.g. bask ets,
ch ild seats, rech arge able bat teries) before load‐
ing them onto the bicycle rack . This will impr ove
th e aerodynamic resis tance and centre of gr avity
of the bicycle rack. 292
Driving and parking

Alw
ays secure the bicycles topreve ntthem from
moving around and check them at regular inter‐
va ls to ensure that they are secure.
Do not use tarp aulins or other co vers. The driv‐
ing characteristics and rear view may be
impaired. In addition, aerodynamic resis tance
and the load on the trailer hitch will increase. Load distribution on
the bicycle rack
1 Vertical dis tance between centre of gr avity
and ball head
2 Horizon tal dis tance between centre of gr av‐
ity and ball head
3 The centre of gr avity is on theve hicle's
centre axis Obse
rveth efo llowing information when you are
loading the bicycle rack with up tothre e bicy‐
cles:
Loading the bicycle rack To
tal weight
of bicycle
rack and
load Max. dis‐
tance
1 1 Max. dis‐
tance
2 2
Up to75 kg 420 mm 300 mm Ve
hicle towing instructions
The vehicle is not suitable forth e use of tow bar
sy stems that are used forflat towing or ding hy
to wing, forex ample. Attach ing and using tow bar
sy stems can lead todamage on theve hicle.
When you are towing a vehicle with tow bar sys‐
te ms, safe driving characteristics cannot be
guaranteed forth eto wing vehicle or theto wed
ve hicle. The vehicle-trailer combination may
swer vefrom side toside. Comply with the per‐
mitted towing me thods (/ page514) and the
instructions forto wing with bo thaxles on the
ground ( /page 516). Driving and pa
rking 293

Note
s on operating saf ety &
WARNING Risk of di stra ction from infor‐
mation sy stems and communications
equipment
If yo u operate information and communica‐
tion equipment integ rated in theve hicle
when driving, you will be distracted from the
traf fic situation. This could also cause youto
lose control of theve hicle. #
Only operate this equipment when the
traf fic situation permits. #
Ifyo u cannot be sure of this, stop the
ve hicle whilst paying attention toroad
and traf fic conditions and ope rate the
equipment with theve hicle stationar y. &
WARNING Risk of an accident from
ope rating mobile communication equip‐
ment while theve hicle is in motion
Mobile communications devices distract the
driver from the traf fic situation. This could also cause
the driver tolose control of the
ve hicle. #
Asthe driver, only operate mobile com‐
munications devices when theve hicle is
st ationar y. #
As a vehicle occupant, only use mobile
communications devices in the areas
intended forth is purpose, e.g. in the
re ar passenger compartment. &
WARNING Risk of inju rydue toobjects
being stowed incor rectly
If objects in theve hicle interior are stowed
incor rectly, they can slide or be thrown
around and hit vehicle occupants. In addi‐
tion, cup holders, open stowage spaces and
mobile phone recep tacles cannot al ways
re tain all objects they contain.
The reis a risk of injur y,particularly in the
ev ent of sudden braking or a sudden change
in direction. #
Alw aysstow objects so that they can‐
not be throw n around in su chsitua‐
tions. #
Alw ays make sure that objects do not
pr otru de from stowage spaces, luggage
nets or stowage nets. #
Close the loc kable stow age spaces
before starting a journe y. #
Alw aysstow and secure heavy, hard,
poin ted, sharp-edged, fragile or bulky
objects in the boot/load compartment. Fo
ryo ur ow n sa fety, al ways obser vethefo llow‐
ing points when operating mobile communica‐
tions equipment and especially your voice con‐
trol sy stem:
R Obser vethe legal requ irements forth e coun‐
try in which you are driving.
R While driving, on ly operate mobile communi‐
cations equipment and your voice control
sy stem when the tra ffic conditions permit it.
Yo u may otherwise be distracted from the
traf fic conditions and cause an accident,
inju ring yourself and others. LINGU
ATRO NIC 309

Blue
tooth ® Information about Blu
etoo th®
Bl ue tooth ®
tech nology is a standard for short-
ra nge wi reless data transfer up toappr oximately
10 m.
Yo u can use Blue tooth®
to connect your mobile
phone tothe multimedia sy stem and use thefo l‐
lowing functions, forex ample:
R Hands-free sy stem with access tothefo llow‐
ing options:
- con tacts (/ page 431)
- call lists (/ page 434)
- text messa ge (/page 435)
R Internet connection (/ page 459)
R Listening tomusic via Blue tooth®
audio
(/ page 472)
R Trans ferring business cards (vCards) into the
ve hicle
Blue tooth ®
is a regis tere d trademark of Blue‐
to oth Special Interest Group (SIG) Inc. %
Internet connection via Blue tooth®
is not
av ailable in all countries.
Ac tivating/deactivating Blue tooth ®
Multimedia sy stem:
4 © 5
Settings 5
System
5 Wi-Fi & Bluetooth #
Switch Bluetooth on or off. Wi
-Fi Wi
-Fi connection overview
Yo u can use Wi-Fi toestablish a connection with
a Wi -Fi network and toaccess the Internet or
ot her network devices.
The following connection options are available:
R Wi-Fi connection
The Wi-Fi connection toaWi -Fi-capable
device, e.g. the cus tomer's mobile phone or
a ta blet PC is es tablished.
R Multimedia sy stem as a Wi-Fi hotspot
Using this function, a tablet PC or no tebook
can be connec ted, forex ample. The connec‐
te d device can use the data tariff of theve hi‐ cle. A maximum of
thre e devices can be con‐
nected with the hotspot at the same time.
% The use of theve hicle data tariff by extern al
devices is not available in all countries.
To estab lish a connection, you can use thefo l‐
lowing me thods:
R WPS PIN
The connection toa secure Wi-Fi network is
made via a PIN.
R WPS PBC
The connection toa secure Wi-Fi network is
made bypressing a button (push button).
R Security key
The connection toa secure Wi-Fi network is
made via a secu rity key.
Setting up Wi-Fi
Requ irements:
R Toset up theWi -Fi connection of the mul‐
timedia sy stem with new devices: there is
no communication module ins talled.
R The device tobe connec ted supports one of
th eth re e means of connection described. 366
MBUX multimedia sy stem

Multimedia sy
stem:
4 © 5
Settings 5
System
5 Wi-Fi & Bluetooth
Ac tivating/deactivating Wi-Fi #
Select Wi-Fi.
If Wi -Fi is switched on, you can connect the
multimedia sy stem with extern al hotspots. If
Wi -Fi is deacti vated, communication via Wi-Fi
to all devices is inter rupte d. This also means
th at a connection tothe communication
module cann otbe es tablished. Then some
functions such as dynamic route guidance
with Live Traf fic Information are not availa‐
ble.
Connecting the multimedia sy stem with a
new device via Wi-Fi
This function is available if a communication
module is not ins talled.
The type of connection es tablished must be
selected on the multimedia sy stem and on the
device tobe connec ted.
% The connection procedure may dif fer
depending on the device. Follow the instruc‐ tions
that are shown in the displa y.Fu rther
information (see the manufacturer's operat‐
ing instructions). #
Select Internet settings . #
Select Connect via Wi-Fi. #
Select Add hotspot.
Connecting using a security key #
Select the options rofthe desired Wi-Fi
networ k. #
Select Connect using security key . #
Have the security key displa yed on the device
to be connec ted (see the manufacturer's
operating instructions). #
Ente rth is security key on the multimedia sys‐
te m. #
Confirm the entry with¡.
% All devices support a security key as a
means of connection.
Connecting using a WPS PIN #
Select the options rofthe desired Wi-Fi
networ k. #
Select Connect using WPS PIN input .
The multimedia sy stem generates an eight-
digit PIN. #
Enter this PIN on the device tobe connec ted. #
Confirm the entry.
Connecting using a but ton #
Select the options rofthe desired Wi-Fi
networ k. #
Select Connect via WPS PBC . #
Select "Connect via WPS PBC" in the options
on the device tobe connec ted (see the man‐
ufacturer's operating instructions). #
Press the WPS button on the device tobe
connec ted. #
Select Continue inthe multimedia sy stem.
Ac tivating automatic connection #
Select Connect via Wi-Fi . #
Select the options rofthe desired Wi-Fi
networ k. #
Activate Permanent Internet connection . MBUX multimedia sy
stem 367

Connecting with a known
Wi-Fi #
Select Connect via Wi-Fi .#
Select a Wi-Fi networ k.
The connection is es tablished again.
Setting up a Wi-Fi hotspot
Multimedia sy stem:
4 © 5
Settings 5
System
5 Wi-Fi & Bluetooth
Configuring the multimedia sy stem as a Wi-
Fi hotspot
The type of connection es tablished depends on
th e device tobe connec ted. The function must
be suppor tedby the multimedia sy stem and by
th e device tobe connec ted. The type of connec‐
tion es tablished must be selected on the multi‐
media sy stem and on the device tobe connec‐
te d. #
Select Vehicle hotspot. #
Select Connect device to vehicle hotspot .
Connecting using WPS PIN generation #
Select Connect using WPS PIN generation. #
Ente rth e PIN shown in the media display on
th e device tobe connec ted and con firm.
Connecting using WPS PIN entry #
Select Connect using WPS PIN input. #
Enterth e PIN that is shown on theex tern al
device's display on the multimedia sy stem.
Connecting using a button #
Select Connect via WPS PBC. #
Press the push button on the device tobe
connec ted (see the manufacturer's operating
instructions). #
Select Continue.
Connecting using a security key #
Select Connect device to vehicle hotspot .
A secu rity key is displa yed. #
Select theve hicle from the device tobe con‐
nec ted. The vehicle is displa yed with theMB
Hotspot XXXXX network name. #
Ente rth e security key which is shown in the
media display on the device tobe connec ted. #
Confirm the entry. Connecting using NFC #
Select Connect via NFC. #
Activate NFC on the mobile device (see the
manufacturer's operating instructions). #
Bring the mobile device into the NFC area of
th eve hicle (/ page 428). #
Select Finished.
The mobile device is now connected tothe
multimedia sy stem hotspot via NFC.
Generating a new security key #
Select Vehicle hotspot. #
Select Generate security key .
A connection will be es tablished with the
newly crea ted security key. #
Tosave a security key:select Save.
When a new security key is sa ved, all existing
Wi -Fi connections are then disconnected. If
th eWi -Fi connections are being re-es tab‐
lished, the new security key must be en tere d. 368
MBUX multimedia sy stem

#
Select an upda tefrom the list and start the
update.
Ac tivating the so ftwa reupdate #
Restart the sy stem.
The modifications from the software update
will be active.
Fu nction of important sy stem upda tes
Impor tant sy stem updates may be necessary for
th e security of your multimedia sy stem's data.
Ins tallth ese updates, or else the security of your
multimedia sy stem cann otbe ensured.
% If automatic software updates are activated,
th e sy stem updates will be downloaded auto‐
matically (/ page371).
As soon as an update is available for download,
a cor responding message appears onthe media
displa y.
Yo u ha vethefo llowing selection options:
R Accept and install
The update will be downloaded in the back‐
ground.
R Information Information about
the pending sy stem
update is displa yed.
R Later
The update can be downloaded manually at a
later time (/ page371).
Dee p sy stem upda tes
Deep sy stem updates access vehicle or sy stem
settings and can therefore only be car ried out
when theve hicle is stationary and the ignition is
switched off.
If th e download of a deep sy stem update is com‐
ple ted and the update is ready for ins tallation,
yo u will be informed of this af terth e next igni‐
tion cycle, forex ample.
% Park theve hicle safely in a suitable location
before starting the ins tallation.
Re quirements forth e ins tallation:
R The ignition is switched off.
R Notes and warnings ha vebeen read and
accep ted.
R The elect ric pa rking brake is applied. If all
requirements are met, the update will be
ins talled. The multimedia sy stem cann otbe
operated while the update is being ins talled and
ve hicle functions are restricted.
If er rors should occur during the ins tallation, the
multimedia sy stem automatically attem ptsto
re store the pr evious version. If restoration of the
pr ev ious version is not possible, a symbol
appears on the media displa y.Please consult a
qu alified specialist workshop toresol vethe
problem. Re
setting the multimedia sy stem (reset func‐
tion) Multimedia sy
stem:
4 © 5
Settings 5
System 5
Reset
Pe rsonal data is dele ted, forex ample:
R Station presets
R Connec ted mobile phones
R individual user profiles
% The guest profile is reset when the settings
are restored tothefa ctory settings. 372
MBUX multimedia sy stem