ECU MERCEDES-BENZ GLA SUV 2020 Repair Manual

The maximum load capacity is calculated from
the
we ight of the bicycle rack and the bicycle rack
load.
Obser vethe no tes on driving with a roof load,
trailer or fully laden vehicle (/ page 174).
When using a bicycle rack , set the tyre pressure
fo r increased load on there ar axle of theve hicle.
Fu rther information on the tyre pressure can be
fo und in the tyre pressure table (/ page 381).
N
No ot tes on loading
es on loading
The lar gerth e distance between the load's centre
of grav ity and the ball head, thegr eater the 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 lon-
gitudinal axis
Mercedes-Benz recommends removing all de tach-
able parts from bicycles (e.g. bask ets, ch ild seats,
re ch arge able batteries) before loading them onto
th e bicycle rack . This will impr ovethe aerody- namic
resis tance and centre of grav ity of the bicy-
cle rack.
Alw ays secure the bicycles toprev ent them 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 driving
ch aracteristics and rear view may be impaired. In
addition, aerodynamic resis tance and the load on
th e trailer hitch will increase. Load distribution on
the bicycle rack
1 Vertical distance between centre of grav ity
and ball head 2
Horizontal distance between centre of grav ity
and ball head
3 The centre of grav ity is on theve hicle's cent re
axis
Obser vethefo llowing information when you are
loading the bicycle rack with up tothre e bicycles:
Loading t
Loading t he bicy
he bicycle r
cle rack
ack T
T
o
o t
tal w
al w eight
eight
of bicy
of bicy cle
cle
r
r ac
ac k and load
k and load Max. dist
Max. dist
ance
ance
1
1 Max. dist
Max. dist
ance
ance
2
2
Up to75 kg 420 mm 300 mm V
V
ehicle to
ehicle towing ins
wing ins tr
tr uctions
uctions
The vehicle is not suitable forth e use of tow bar
systems that are used for 0at towing or dinghy
to wing, forex ample. Attach ing and using tow bar
systems can result in damage totheve hicle.
When you are towing a vehicle with tow bar sys-
te ms, safe driving characteristics cann otbe guar-
anteed forth eto wing vehicle or theto we dve hicle.
The vehicle-trailer combination may swer vefrom
side toside. Driving and parking
283
283

F
F
unction of t
unction of t he pow
he power met
er meter (plug-in h
er (plug-in h ybr
ybrid)
id) 1
Combustion engine and electric mo tor
switched o.
2 Position in the display range of there co vered
energy
3 End of the display range of there co vered
energy
4 End of the display range of the combined out-
put of thehy brid system The
following functions of the po wer me ter are
per form ed:
R The po wer me ter supports you in electric-only
mode and displa ys the output obtained from
th ehy brid system.
R Regenerated energy is sh own in area 1–
3.
R When the po wer me ter needle is at position
1, theve hicle is switched o.. The combus-
tion engine and the electric mo tor are
switched o..
R Pow errange 3–4 show sth e combined
output of thehy brid system. F
F
unction of t
unction of t he electr
he electric mot
ic motor pow
or pow erav
er availability
ailability
displa
displa y (plug-in h
y (plug-in h ybr
ybrid)
id) 1
Start of the POWER display range
2 End of the POWER display range
3 Maximum recuperated energy
4 Start of the display range of there cuperated
energy
5 Current state of charge ofthe high-voltage
battery
R Area 1-2 shows th e output in electric
mode or boost mode. The POWER display sup-
ports you in electric-only mode.
R Area 3-4 shows th ere cuperated energy. Instrument display and on-board computer
289 289

R
From point 3,the maximum recuperated
energy has been reached.
R The cur rent state of charge of high-voltage
battery 5is displa yed. Displa
Displa
ying t
ying the pow
he pow er met
er meter (plug-in h
er (plug-in h ybr
ybrid)
id)
On-board computer: 4 Content #
Select Power meter. Ov
Ov
er
ervie
vie w of display
w of display s in t
s in the ins
he ins tr
trument display
ument display
Displa yson the inst rument displa y:
u Active Parking Assist (/ page 274)
é Parking Assist PARKTRONIC deactivated
(/ page 271)
î DSR (/ page 244)
h Cruise control (/ page 235)
È Limiter (/ page 236)
ç Active Distance Assist DISTRONIC
(/ page 238) æ
Active Brake Assist (/ page 248)
à Active Steering Assist (/ page 246)
à Active Lane Keeping Assist (/ page 259)
° Haptic accelerator pedal (/ page 183)
õ PLUG‑IN HYBRID operation activated
ò Sound generator inoperative (/ page 432)
è ECO start/stop function (/ page 180)
ë HOLD function (/ page 231)
_ Adaptive Highbeam Assist (/ page 144)
Ad aptive Highbeam Assist Plus
(/ page 145)
ð Maximum permissible speed exceeded (for
cer tain countries only)
V
V ehicles wit
ehicles wit h Speed Limit Assist:
h Speed Limit Assist: detected
instructions and tra1c signs (/ page 253).
V
V ehicles wit
ehicles wit h
hTr
Tra1c
a1c Sign Assist:
Sign Assist: detected instruc-
tions and tra1c signs (/ page 254). Head-up display
Head-up display
F
F
unction of t
unction of t he head-up display
he head-up display *
N
NOOTE
TE Mercedes-AMG vehicles #
Obser vethe no tes in the Supplement.
Yo u could otherwise failto recognise
dangers. The head-up display projects
thefo llowing infor-
mation into the driver's /eld of vision abo vethe
cockpit, forex ample:
R The vehicle speed
R Information from the navigation system
R Information from the driving systems and driv-
ing saf ety sy stems
R Some warning messages
Depending on theve hicle's equipment, di.erent
content can be shown in theth re e areas of the
head-up displ ay (/page 291). 290
290
Inst
rument display and on-board computer

Example: if
the option is switched on and a
ro ute toa new destination has been calcula-
te d, this destination would not be take n into
account forth e learning function.
Cr
Cr eating ne
eating ne w t
w themes
hemes #
Select ©. #
Select THEMES. #
Select WSet theme .
The settings which are sa ved in theth eme are
shown. #
Select Continue r. #
Select AudioandNavigation (Navigation) and
store the active settings in theth eme. #
Select Continue r. #
Select an entry screen. #
Select Continue r. #
Select an image. #
Enter the names into the entry /eld and con-
/rm with a. #
Select Save. Syst
Syst
em se
em se ttings
ttings Ov
Ov
er
ervie
vie w of t
w of t he sy
he syst
stem se
em se ttings menu
ttings menu In
the system settings menu, you can make set-
tings in thefo llowing menus and control ele-
ments:
R Display
- Styles
- Instrument lighting
- Display brightness
- Edge lighting
- Day/night design
R Control elements
- Keyboard language and handwriting recog-
nition
- Sensitivity of theto uchpad
- Sensitivity of theTo uch Controls
R LINGU ATRO NIC
R Sound
- Enter tainment
- Navigation and tra1c announcements -
Telephone
- Voice ampli/cation tothere ar
R Connectivity
- Wi-Fi, Blue tooth ®
, NFC
R Time & date
R Language
R Units for distance
R SoTware updates
R Data import/export
R PIN pr otection
R System Reset Inf
Inf
or
ormation on im
mation on im port
portant syst
ant syst em updat
em updat es
es Impor
tant system updates may be necessary for
th e security of your multimedia system's data.
Install these updates, or else the security of your
multimedia system cannot be ensured.
A system update consists of thre e steps:
R Downloading or copying of the data requ ired
fo r installation
R Installation of the downloaded system update 302 302
MBUX multimedia system

%
The connection procedure may di.er depend-
ing on the device. Follow the inst ructions that
are shown in the displa y.Fu rther information
can be found in the manufacturer's operating
inst ructions. #
Select Internet settings .#
Select Connect via Wi-Fi .#
Select Add hotspot.
Connecting using a QR code
Connecting using a QR code #
Select the options rofthe desired Wi-Fi
networ k. #
Select Connect using QR code. #
Scan the displa yed QR code with the device to
be connected.
The Wi-Fi connection is established.
Connecting using a secur Connecting using a secur itykey
ity 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 connected (see the manufacturer's oper-
ating inst ructions). #
Enter this security key on the multimedia sys-
te m. #
Con/rm the entry with ¡.
Connecting using a WPS PIN
Connecting using a WPS PIN #
Select the options rofthe desired Wi-Fi
networ k. #
Select Connect using WPS PIN input.
The multimedia system generates an eight-
digit PIN. #
Enter this PIN on the device tobe connected. #
Con/rm the entr y.
Connecting using a butt
Connecting using a butt on
on #
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 connected (see the manu-
fa cturer's operating instructions). #
Press the WPS button on the device tobe con-
nected. #
Select Continue inthe multimedia system.
A
A ctiv
ctiv ating aut
ating aut omatic connection
omatic connection #
Select Connect via Wi-Fi. #
Select the options rofthe desired Wi-Fi
networ k. #
Activate Permanent Internet connection .
Connecting wit
Connecting wit h a kno
h a known W
wn Wi-F
i-Fi ne
i ne tw
twork
ork #
Select Connect via Wi-Fi. #
Select a Wi-Fi networ k.
The connection is established again.
Con/gur
Con/gur ing
ingt
the multimedia syst
he multimedia syst em as a W
em as a Wi-F
i-Fi ho
i ho t-
t-
spo
spo t f
t for e
or e xt
xter
er nal de
nal de vices
vices
The type of connection established depends on
th e device tobe connected. The function must be
suppor tedby the multimedia system and bythe
device tobe connected. The type of connection
established must be selected on the multimedia
system and on the device tobe connected. #
Select Vehicle hotspot. 304 304
MBUX multimedia system

#
Select Connect device to vehicle hotspot.
Connecting using WPS PIN g
Connecting using WPS PIN g ener
eneration
ation #
Select Connect using WPS PIN generation. #
Enter the PIN shown in the media display on
th e device tobe connected and con/ rm.
Connecting using WPS PIN entry
Connecting using WPS PIN entry #
Select Connect using WPS PIN input. #
Enter the PIN that is shown on theex tern al
device's displ ayon the multimedia system.
Connecting using a butt
Connecting using a butt on
on#
Select Connect via WPS PBC. #
Press the push button on the device tobe
connected (see the manufacturer's operating
inst ructions). #
Select Continue .
Connecting using a secur
Connecting using a secur itykey
ity key #
Select Connect device to vehicle hotspot.
A secu rity key is displa yed. #
Select theve hicle from the device tobe con-
nected. The vehicle is displ ayed with the
DIRECT-MBUX XXXXX network name. #
Enter the security key which is shown in the
media display on the device tobe connected. #
Con/rm the entr y.
Connecting using NFC
Connecting using NFC #
Select Connect via NFC. #
Activate NFC on the mobile device (see the
manufacturer's operating instructions). #
Hold the device tobe connected at theve hi-
cle's NFC inter face. #
Select Finished.
The mobile device is now connected tothe
multimedia system hotspot via NFC.
Gener
Gener ating a ne
ating a ne w secur
w securitykey
ity key #
Select Vehicle hotspot. #
Select Generate security key.
A connection will be established wi th the
ne wly created security key. #
T To sav o sav e a secur
e a secur itykey
ity 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-estab-
lished, the new security key must be en tere d. Syst
Syst
em language
em language N
No
ot
tes on t
es on t he syst
he syst em language
em language
This function allo wsyouto determ ine the lan-
guage forth e menu displa ysand the navigation
announcements. The selected language a.ects
th ech aracters available for entr y.The navigation
announcements are not available in all languages.
If a language is not available, the navigation
announcements will be in English.
Se Se tting t
tting t he syst
he syst em language
em language
Multimedia system:
4 © 5
Settings 5
System
5 ® Language #
Set the language. MBUX multimedia system
305
305

Ha
ve the camera checked in a Mercedes-Benz
service centre. T
T
elephone
elephone T
T
elephony
elephony N
No
ot
tes on t
es on t elephony
elephony &
W
WARNING
ARNING Risk of dist raction from operat-
ing integ rated communication equipment
while theve hicle is in motion
If yo u operate communication equipment inte-
gr ated in theve hicle when driving, you could
be distracted from the tra1c situation. This
could also cause youto lose control of the
ve hicle. #
Only operate this equipment when the
tra1c situation pe rmits. #
Ifyo u cannot be sure of this, stop the
ve hicle whilst paying attention toroad
and tra1c conditions and operate the
equipment with theve hicle stationar y. &
W
WARNI NG
ARNI NGRisk of an accident from oper-
ating mobile communication equipment
while theve hicle is in motion
Mobile communications devices distract the
driver from the tra1c situation. This could also
cause the driver tolose control of theve hicle. #
Asthe driver, only operate mobile com-
munications devices when theve hicle is
stationar y. #
As a vehicle occupant, only use mobile
communications devices in the areas
intended forth is purpose, e.g. in there ar
passen ger compartment. Yo
u must obser vethe legal requ irements forthe
count ryin which you are cur rently driving when
ope rating mobile communication equipment in
th eve hicle. &
W WARNING
ARNING Risk of injury due toobjects
being st owed incor rectly
If objects in theve hicle interior are st owed
incor rectl y,they can slide or be thro wn around and hit
vehicle occupants. In addition, cup
holders, open st owage spaces and mobile
phone recep tacles cannot alw aysreta in all
objects within.
There is a risk of injur y,particular lyin the
eve nt of sudden braking or a sudden change
in direction. #
Always st owobjects so that they cann ot
be thro wn around in such situations. #
Always make sure that objects do not
pr otru de from st owage spaces, lug gage
nets or st owage nets. #
Close the loc kable st owage spaces
before starting a jou rney. #
Always st owand secure heavy, hard,
poin ted, sharp-edged, fragile or bulky
objects in the boot/load compartment. Obser
vethe additional information on st owing
mobile communications devices cor rectl y:
R Loading theve hicle (/ page 119)
R Stow ing and securing the mobile phone
(/ page 136) 316 316
MBUX multimedia system

R
Two mobile phones are connected with the
multimedia system via Blue tooth ®
(two phone
mode).
- You can use all the functions of the multi-
media system with the mobile phone in the
fo re ground.
- You can receive incoming calls and mes-
sages with the mobile phone in the bac k-
gr ound.
Yo u can inter change the mobile phone in
th efo re ground and backg round.
Connecting a mobile phone
Connecting a mobile phone
R R eq
eq uir
uir ements:
ements:
R Blue tooth ®
is activated on the mobile phone
(see the manufacturer's operating inst ruc-
tions).
R Bluetoo th®
is activated on the multimedia sys-
te m. Multimedia system:
4 © 5
Phone
Searc
Searc hing f
hing for a mobile phone
or a mobile phone #
Select í. #
Select Connect new device.
Connecting a mobile phone
Connecting a mobile phone
Au thorisation follo ws using secure simple pairing. #
Select a mobile phone.
A code is displa yed in the multimedia system
and on the mobile phone. #
If bo thcodes match, con/rm the code on the
mobile phone.
F F unctions in t
unctions in t he t
he telephon
elephon y menu
y menu
In thete lephony menu you ha vethefo llowing
functions, forex ample:
R Making calls, e.g.:
- R Accept a call
- k End call
- i Create conferen. call
- Accepting or rejecting a waiting call R
Managing contacts, e.g.:
- Downloading mobile phone contacts
- Managing thefo rm at of a contact's name
- Saving a contact as a favo urite
R Receiving and sending messages, e.g.:
- Using there ad-aloud function
- Dictating a new message Mer
Mer
cedes me app
cedes me app Mer
Mer
cedes me calls
cedes me calls Making a call via t
Making a call via t
heov
he overerhead contr
head contr ol panel
ol panel
% Mercedes me calls are not possible in every
countr y.Find out at a Mercedes-Benz service
centre if these functions are available in your
countr y. MBUX multimedia system
319
319

If a call is made aTer automatic accident or break-
down de
tection using the multimedia system, the
fo llowing data is also transmitted:
R Current mileage and maintenance data
R Current vehicle location
If Ac cident and Breakdown Management is called
via thevo ice control system and no service has
been activated, but the data pr otection query has
been con/ rmed, thefo llowing data can also be
called up from theve hicle bythe Mercedes-Benz
Customer Centre:
R Current vehicle location
If th e data pr otection prom pthas been rejec ted,
th efo llowing data is transmitted toenable targe-
te d advice and an e1cient service:
R Reason forth e initiation of the call
R Rejection of the data pr otection prompt
R Country indicator of theve hicle
R Set language forth e multimedia system
R Telephone number of the communication plat-
fo rm installed in theve hicle Dat
Dat a tr a transf
ansf er if Mer
er if Mer cedes me connect ser
cedes me connect ser vices
vices
ar
ar e activ
e activ at
ated
ed
Only if there specti veservice is activated will
additional incident-speci/c data be transmit ted in
th e second stage toenable an optimal service.
An ove rview of the data transmitted can be found
in there specti veterm s of use for Mercedes me
connect services. These can be obtained in the
Mercedes me por tal: https://
me.secure.mercedes-benz.com
Dat Dat a pr
a pr ocessing
ocessing
The data transmitted within the scope of the call
is dele ted from the processing system aTer the
call is /nished, in so far as this data is not being
used forot her activated Mercedes me connect
services.
The incident-speci/c data is processed and stored
in the Mercedes-Benz Customer Centre and, if
re qu ired toprocess the incident, forw arded tothe
service partner authorised bythe Mercedes-Benz
Customer Centre. Please take note of the data
pr otection information on the Mercedes me Inter-
net page https://www.mercedes.me or in there
corded message immediately aTer calling the
Mercedes-Benz Customer Centre.
% The recorded message is not available in
ev ery countr y. Mer Mer
cedes me connect
cedes me connect Inf
Inf
or
ormation on Mer
mation on Mer cedes me connect
cedes me connect
% Mercedes me connect or individual Mercedes
me connect services are not available in every
countr y.Find out at a Mercedes-Benz service
centre if these functions are available in your
countr y.
Mercedes me connect consists of multiple ser v-
ices.
Yo u can use thefo llowing services via the multi-
media system and theove rhead control panel, for
ex ample:
R Accident and Breakdown Management (me
button or situation-dependent display in the
multimedia system)
R Mercedes-Benz emer gency call system (auto-
matic eme rgency call and SOS button) MBUX multimedia system
323 323

The Mercedes me connect
Accident and Break-
down Management and the Mercedes-Benz emer-
ge ncy call centre are available toyou around the
cloc k.
The me button and the SOS button can be found
on theve hicle's overhead control panel
(/ page 319).
Yo u can also call the Mercedes-Benz Customer
Centre using the multimedia system
(/ page 320).
Please no tethat Mercedes me connect is a
Mercedes-Benz service. In emer gencies, /rst call
th e national emer gency services using the stand-
ard national emer gency service telephone num-
bers. In emer gencies, you can also use the
Mercedes-Benz eme rgency call system
(/ page 330).
Obser vethe conditions of use for Mercedes me
connect and other services. These can be
obtained in the Mercedes me Portal: https://
me.secure.me rcedes-benz.com
Fu rther information about Mercedes me connect,
th e pr ovided service scope and operation:
https://moba.i.daimler.com/mar kets/ece-r ow/ baix/cars/connectme/en_GB/#emotions/
St
artsei te.html
Inf Inf or
ormation on Mer
mation on Mer cedes me connect A
cedes me connect A ccident
ccident
and Br
and Br eakdo
eakdown Manag
wn Manag ement
ement
The Accident and Breakdown Management can
include thefo llowing functions:
R Supplement tothe Mercedes-Benz emer gency
call system (/ page 330)
If necessar y,the contact person at the
Mercedes-Benz eme rgency call centre for-
wa rdsth e call toMercedes me connect Acci-
dent and Breakdown Management. Forw ard-
ing the call is ho wever not possible in all coun-
tries.
R Breakdown assista ncebyate ch nician on
location and/or theto wing away of theve hicle
to the nearest Mercedes-Benz service centre
Yo u may be charge dfo rth ese services.
R Addition tothe emer gency guide aTer auto-
matic accident or breakdown de tection
(/ page 321)
In theev ent of a breakdown or accident, fur-
th er vehicle data is sent which enables optimal support
bythe Mercedes-Benz Customer
Centre and the authorised service partner or
breakdown assistance.
R Addition tothe Mercedes me connect service
Te lediagnostics
Wi th th eTe lediagnostics function, speci/c
we ar and failure reports are recorded bythe
service pr ovider, in so far as these can be
clear lyinterpr eted and are available thro ugh
th e monitoring of components that are subject
to diagnostics.
If yo ur vehicle de tects a breakdown or thre at
of a breakdown, you may be prom pted via the
multimedia system tocontact the Mercedes-
Benz Customer Centre for fur ther help. This
prom ptinthe multimedia system only appears
when theve hicle is stationar y.
% These services are subject to technical
re strictions su chasthe mobile phone co ver-
age, mobile network quality and the ability of
th e processing systems tointerpr etthe trans-
fe rred data. In some circumstances, this can
re sult in dela ysorthefa ilure of the informa-
tion toappear in the multimedia system. 324
324
MBUX multimedia system