ECU MERCEDES-BENZ GLS SUV 2020 Repair Manual

R
Two mobile phones are connected with the
multimedia sy stem via Blue tooth®
(two
phone mode).
- You can use all the functions of the multi‐
media sy stem with the mobile phone in
th efo re ground.
- You can recei veincoming calls and mes‐
sages with the mobile phone in the back‐
ground.
Yo u can inter change the mobile phone in
th efo re ground and bac kground.
R A mobile phone is connected as the car
phone.
Connecting a mobile phone
Re quirements:
R Blue tooth ®
is activated on the mobile phone
(see the manufacturer's operating instruc‐
tions).
R Blue tooth ®
is activated on the multimedia
sy stem. Multimedia sy
stem:
4 © 5
Phone
Sear ching for a mobile phone #
Select í. #
Select Connect new device .
Connecting a mobile phone
Auth orisation follo ws using secure simple pair‐
ing. #
Select a mobile phone.
A code is displ ayed in the multimedia sy stem
and on the mobile phone. #
If bo thcodes match, confirm the code on the
mobile phone.
Fu nctions in thete lephony 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 con tacts, e.g.:
- Downloading mobile phone contacts
- Managing thefo rm at of a con tact'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 Mercedes me and apps
Mercedes me connect
Information on Mercedes me connect
% Mercedes me connect or individual
Mercedes me connect services are not avail‐
able in everycountr y.Find out at a
Mercedes-Benz service centre if these func‐
tions are available in your count ry.
Mercedes me connect consists of multiple serv‐
ices. MBUX multimedia sy
stem 333

Yo
u can use thefo llowing services via the multi‐
media sy stem and theove rhead control panel,
fo rex ample:
R Accident and Breakdown Management (me
button or situation-dependent displ ayinthe
multimedia sy stem)
R Mercedes-Benz emer gency call sy stem (auto‐
matic emer gency call and SOS button)
The Mercedes me connect Accident and Break‐
down Management and the Mercedes-Benz
emer gency call centre are available to you
around the cloc k.
The me button and the SOS button can be found
on theve hicle's overhead control panel
(/ page 335).
Yo u can also call the Mercedes-Benz Cus tomer
Centre using the multimedia sy stem
(/ page 336).
Please no tethat Mercedes me connect is a
Mercedes-Benz service. In emer gencies, firs t call
th e national emer gency services using the
st andard national emer gency service telephone
numbers. In emer gencies, you can also use theMercedes-Benz emer
gency call sy stem
(/ page 344).
Obser vethe conditions of use for Mercedes me
connect and other services. These can be
obtained in the Mercedes me Portal: https://
me.secure.mercedes-benz.com
Fu rther information about Mercedes me con‐
nect, the pr ovided service scope and operation:
https://moba.i.daimler.com/mar kets/ece-r ow/
baix/cars/connectme/en_GB/#emotions/
St artseite.html
Information on Mercedes me connect Acci‐
dent and Breakdown Management
The Accident and Breakdown Management can
include thefo llowing functions:
R Supplement tothe Mercedes-Benz emer‐
ge ncy call sy stem (/ page 344)
If necessar y,the conta ct person at the
Mercedes-Benz emer gency 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
countries. R
Breakdown assi stance byate ch nician on
location and/or theto wing away oftheve hi‐
cle tothe nearest Mercedes-Benz service
cent re
Yo u may be charge dfo rth ese services.
R Addition tothe emer gency guide af ter auto‐
matic accident or breakdown de tection
(/ page 336)
In theeve nt of a breakdown or accident, fur‐
th er vehicle data is sent which enables opti‐
mal support bythe Mercedes-Benz Cus tomer
Centre and the authorised service partner or
breakdown assis tance.
R Addition tothe Mercedes me connect
service Telediagno stics
Wi th th eTe lediagno stics function, specific
we ar and failure reports are recorded bythe
service pr ovider, in so far as these can be
clearly interpr eted and are available thro ugh
th e monitoring of components that are sub‐
ject todiagnostics.
If yo ur vehicle de tects a breakdown or thre at
of a breakdown, you may be prom pted via
th e multimedia sy stem tocontact the 334
MBUX multimedia sy stem

Mercedes-Benz Cus
tomer Centre for fur ther
help. This prom ptinthe multimedia sy stem
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 sy stems tointerpr etthe
trans ferred data. In some circums tances,
th is can result in dela ysorthefa ilure of the
information toappear in the multimedia sys‐
te m.
More information about Mercedes me connect
services can be obtained in the Mercedes me
Po rtal: https://me.secure.mercedes-benz.com
Data trans ferre d during Mercedes me con‐
nect call se rvices
The data transfer red during a Mercedes me con‐
nect call depends on:
R The reason for initiation of the call
R The service that is selec ted in thevo ice con‐
trol sy stem
R The activated Mercedes me connect services Yo
u can find out which da tais transfer red when
using the services in the cur rently valid
Mercedes me connect term s of use and the data
pr otection information for Mercedes me con‐
nect. You can find these in your Mercedes me
user account. Mercedes me calls
Making a call via
theove rhead control panel
% Mercedes me calls are not possible in every
count ry. Find out at a Mercedes-Benz
service centre if these functions are availa‐
ble in your count ry. 1
me button for service or information calls
2 SOS button co ver
3 SOS button (emergency call sy stem)
Making a Mercedes me call #
Press me button 1. MBUX multimedia sy
stem 335

R
Set language forth e multimedia sy stem
R Telephone number of the communication
platform ins talled in theve hicle
Data transfer if Mercedes me connect serv‐
ices are activated
Only if there spective service is activated will
additional incident-specific data be transmitted
in the second stage toenable an optimal
service.
An overview of the data transmit ted can be
fo und in there spective term s of use for
Mercedes me connect services. These can be
obtained in the Mercedes me por tal: https://
me.secure.mercedes-benz.com
Data processing
The data transmitte d withinthe scope of the call
is dele ted from the processing sy stem af terthe
call is finished, in so far as this data is not being
used forot her activated Mercedes me connect
services.
The incident-specific data is processed and
st ored in the Mercedes-Benz Cus tomer Centre
and, if requiredtoprocess the incident, forw ar‐
ded tothe service partner authorised bythe Mercedes-Benz Cus
tomer Centre. Please take
no te ofthe data pr otection information on the
Mercedes me Internet page https://
www.mercedes.me or in there corded message
immediately af ter calling the Mercedes-Benz
Cus tomer Centre.
% The recorded message is not available in
eve rycountr y. Overview of
the Mercedes me & Apps menu When
you log in with a user account tothe
Mercedes me Portal, then services and of fers
from Mercedes-Benz will be available to you.
Fo r more information consult a Mercedes-Benz
service centre or visit the Mercedes me por tal:
https://me.secure.mercedes-benz.com
% Make sure you alw ayske ep the Mercedes
me apps updated.
Yo u can call up the menu using Mercedes me &
Apps inthe multimedia sy stem. In
theMercedes me & Apps menu,thefo llowing
options can be available:
R Connecting theve hicle with theMercedes
me user account
R Deleting a connection between a Mercedes
me user account and theve hicle
R Calling up the Mercedes me services
R Calling up apps such as, In-Car Of fice or the
we b br ows er depending on availability Overview of In-Car Of
fice Using In-Car Of
fice, you can connect your online
services with the multimedia sy stem.
Re quirements for In-Car Of fice:
R Your mobile phone is connected with the
multimedia sy stem.
R You ha vea user account forth e Mercedes
me Portal.
R The In-Car Of fice service is acti vated in the
Mercedes me Portal.
R You ha vea user account with an online
service, e.g. Of fice 365, and ha veconnected MBUX multimedia sy
stem 339

Re
moving the fire extinguisher &
WARNING Risk of accident due toan
incor rectly secu redfire extinguisher in
th e driver's foot we ll
A fire extinguisher may impede pedal tr avel
or block a depressed pedal.
This jeopardises the operating and road
saf ety of theve hicle.
The fire extinguisher can be flung around and
injure the driver or other vehicle occupants. #
Alw aysst ore and secure thefire extin‐
guisher in the brac ket. #
Do not remo vethefire extinguisher
while driving. #
Left-hand drive vehicle: pulltab1
upwards. #
Remo vefire extinguisher 2. Flat tyre
Note
s onflat tyres &
WARNING Risk of accident due toaflat
tyre
A flat tyre se verely affects the driving charac‐
te rist ics as well as thesteering and braking
of theve hicle. Ty
res without run-flat characteristics: #
Do not drive with a flat tyre. #
Chan getheflat tyre immediately with
an emer gency spa rewheel or spare
wheel. Alternativel y,consult a qualified
specialist workshop.
Ty res with run-flat characteristics: #
Obse rveth e information and warning
no tes on MOExtended tyres (run-flat
tyres). In
theeve nt of a flat tyre, thefo llowing options
are available depending on your vehicle's equip‐
ment:
R Vehicles with MOExtended tyres: it is pos‐
sible tocontinue the journey for a short
period of time. Make sure you obse rvethe
no tes on MOExtended tyres (run-flat tyres)
(/ page 375).
R Vehicles with a TIREFIT kit: you can repair
th e tyre so that it is possible tocontinue the
jou rney for a short period of time. Todo this,
use the TIREFIT kit (/ page376). 374
Breakdown assis tance

Obser
vethe additional following points during
st arting assistance:
R Starting assis tance may only be pr ovided
using vehicles, batteries or other jump start
devices with a nominal voltage of 12V.
R The vehicles must not touch.
R Vehicles with a petrol engine: jump-start
th eve hicle only when the engine and exhaust
sy stem are cold. St
arting assi stance and charging the12 V
battery Requ
irements:
R The vehicle is secured with the electric park‐
ing brake.
R Vehicles with automatic transmission: the
transmission is in position j.
R The ignition and all electrical consumers are
switched off.
R The bonnet is open. Example: engine compartment
#
Slide co ver1 of positive clamp 2onthe
jump-s tarting connection point in the direc‐
tion of the ar row. #
Connect positive clamp 2onyour vehicle to
th e positive pole of the donor battery using
th e jump lead/charging cable. Alw ays begin with positive clamp
2onyour ow nve hicle
fi rs t. #
During starting assi stance: start the
engine of the donor vehicle and run at idle
speed. #
Connect the negative pole of the donor bat‐
te ry and ear thpoint 3ofyour ow nve hicle
by using the jump lead/charging cable. Begin
with the donor battery firs t. #
During starting assi stance: start the
engine of your ow nve hicle. #
During thech arging process: start the
ch arging process. #
During starting assi stance: letthe engines
ru nfo r se veral minutes. #
During starting assi stance: before discon‐
necting the jump lead, switch on an electrical
consumer in your ow nve hicle, e.g. there ar
wind owheater or lighting.
When thest arting assis tance/charging process
is compl ete, per form thefo llowing steps: 384
Breakdown assis tance

#
Make sure that thesteering wheel can
mo vefreely, before towing theve hicle
aw ay. *
NO
TEDama gedue toexcessive tracti ve
po wer If
yo u pull away sharpl y,the tractive po wer
may be too high and theve hicles could be
damaged. #
Pull away slowly and smoo thly. Loading the
vehicle for transport #
Obser vethe no tes on towing away
( / page 386). #
Connect theto w bar totheto wing eye in
order toload theve hicle.
% You can also attach theto w bar tothe trailer
hitch. #
Shift the automatic transmission toposition
i. %
The automatic transmission may be loc ked
in position jintheeve nt of dama getothe
electrics. Toshift toi , pr ovide the on-
board electrical sy stem with po wer
( / page 384). #
Load theve hicle onto the transpor ter. #
Shift the automatic transmission toposition
j. #
Use the electric parking brake tosecure the
ve hicle against rolling away. #
Only secure theve hicle bythe wheels.
Ve hicles with ADS PLUS (Adaptive Damping
Sy stem PLUS) &
WARNING Risk of an accident when
transporting vehicles with Adaptive
Damping Sy stem PLUS
The reduced damping forc es on theve hicle
being transpor ted can cause theve hicle/
trailer combination tostart toswing.
As a result, when transporting vehicles with
th eAd aptive Damping Sy stem PLUS, the ve
hicle/trailer combination may start toskid.
Consequentl y,yo u could lose cont rol of your
ve hicle. #
When transporting, ensure that:
R theve hicle has been loaded onto
th e transpor ter cor rectly
R theve hicle is secured at all four
wheels with suitable tensioning
st ra ps
R the maximum permissible speed of
60 km/h is not exceeded when
transporting *
NO
TEDama getotheve hicle from secur‐
ing it incor rectly #
After loading, theve hicle must be
secured on all four wheels. Otherwise,
th eve hicle could be damaged. #
A minimum dis tance of 20 cm up wards
and 10cm down wards must be kept to
th e transport platform. 388
Breakdown assis tance

#
Secu retheve hicle on all four wheels af ter
loading.
4MATIC vehicles/ vehicles with automatic
transmission #
Make sure that the front and rear axles come
to rest on the same transpor tation vehicle.
* NO
TEDama getothe driv etra in due to
incor rect positioning #
Do not position theve hicle abo vethe
connection point of the transport vehi‐
cle. To
wing eyesto rage location Example:
towing eye
To wing eye1 is located under the load com‐
partment floor. Installing
theto wing eye #
Press the mark on co ver1 inwa rds and
re mo ve. #
Screw intheto wing eyeclockwise as far as it
will go and tighten.
Ve hicles with a trailer hitch: vehicles with a
trailer hitch do not ha veare ar brac ketfo rthe Breakdown assis
tance 389

#
When the fuse box is open, make sure
th at no moisture can enter the fuse
box. #
When closing the fuse box, make sure
th at the seal of the lid is positioned cor‐
re ctly on the fuse box. If
th e newly inser ted fuse also blo ws, ha vethe
cause traced and rectified at a qualified special‐
ist workshop.
Ensure thefo llowing before replacing a fuse:
R The vehicle is secured against rolling away.
R All electrical consumers are switched off.
R The ignition is switched off.
The electrical fuses are located in various fuse
bo xes:
R Fuse box in the engine compartment on the
left-hand side of theve hicle, when vie wed in
th e direction of tr avel (/ page 391)
R Fuse box on the driver's side of the cockpit
(/ page 392) R
Fuse box in the front passenger foot we ll
(/ page 392)
R Fuse box in the load compartment on the
ri ght-hand side of theve hicle, when vie wed
in the direction of tra vel (/ page 392) Opening and closing
the fuse box in the
engine compa rtment Re
quirement:
R You need a dry clo thand a sc rewdriver.
Obser vethe no tes on electrical fuses
(/ page 390).
Opening &
WARNING Risk of inju ryfrom using the
windscreen wipers while the engine bon‐
net is open
When the engine bonn etis open, and the
windscreen wipers are set in motion, you can
be trapped bythe wiper linkage. #
Alw ays switch off the windscreen wip‐
ers and ignition before opening the
engine bonn et. #
Remo veany existing moisture from the fuse
box using a dry clo th. #
Loosen scr ews2 and remo vefuse box lid
1 from theto p. Breakdown assis
tance 391

at
the nearest qualified specialist work‐
shop. The new wheel must ha vethe
cor rect dimensions. The collapsible spa
rewheel is an emer gency
spa rewheel which is only suitable for use for a
limi ted period of time and in a restricted manner
in theeve nt of a flat tyre (e.g. until the nearest
wo rkshop).
The tyre side walls are folded when in transpo rt
mode. Before use, the collapsible spare wheel
has tobe inflated with the accompanying com‐
pressor.
Check the tyre pressure of the collapsible spare
wheel once fitted. Co rrect the pressure as nec‐
essar y.
The maximum permissible speed with a collapsi‐
ble spare wheel fitted is 80 km/h.
Do not fit snow chains with the collapsible spare
wheel.
Re place the collapsible spare wheel af ter six
ye ars at the latest, rega rdless of wear.
% Ve
hicles with a tyre pressure monitoring
sy stem: if a collapsible spare wheel is fitted th
e tyre pressure monitoring sy stem cann ot
function reliably. For a few minutes af ter an
emergency spare wheel is fitted, the sy stem
may still display the tyre pressure of the
re mo ved wheel. Only restart the sy stem
again when the collapsible spare wheel has
been replaced with a new wheel.
Be sure toalso obse rveth efo llowing fur ther
re lated subjects:
R Notes on tyre pressure (/ page 394)
R Tyre pressure table (/ page 395)
Note s onvehicles with a Burmes ter sound
sy stem &
WARNING Risk of inju ryor death due to
an unsecured collapsible spare wheel
If th e collapsible spare wheel is not secured
cor rectl y,it can slip, tip over or be thrown
around.
Ve hicle occupants could be hit byan unse‐
cured collapsible spare wheel and be seri‐
ously injured as a result, particularly when accelerating, braking, abruptly
changing
direction or in theeve nt of an accident. #
Alw aysst ore the collapsible spare
wheel in the emer gency spa rewheel
bag and attach it tothe brac ket in the
load compartment. #
Alw ays ensure that the lashing stra ps
on the emer gency spa rewheel bag are
safely secured on there ar tie-down
ey es on the load compartment floor. Depending on
theve hicle's equipment, the col‐
lapsible spare wheel is located in an emer gency
spa rewheel bag on a brac ket in the load com‐
partment. The collapsible spare wheel in the
emer gency spa rewheel bag and the brac ket are
lashed wi thstra ps and secured using there ar
tie-down eyes on the load compartment floor. Re
moving the collapsible spare wheel Ve
hicles without a Burmes ter sound sy stem
The collapsible spare wheel is located under the
load compartment floor. 41 0
Wheels and tyres