ignition MERCEDES-BENZ CLS COUPE 2020 Service Manual

#
Select Yes.
Re leva nt identi fication da tais transmitted
automaticall y.
More information on Mercedes me: https://
www.mercedes.me
Tr ansfer red data during a Mercedes me call
When you make a service call via Mercedes me,
data is transmitted. This enables targeted advice
and a smoo thservice.
The following requ irements must be fulfilled for
th e transfer of the data:
R The ignition is switched on.
R The requ ired data transfer tech nology is sup‐
po rted bythe mobile phone network pro‐
vider.
R The quality of the mobile connection is suf fi‐
cient.
Multi-s tage trans fer depends on thefo llowing
fa ctors:
R Reason forth e initiation of the call
R The available mobile phone transmission
te ch nology. R
The acti vated Mercedes me connect serv‐
ices.
R The service selected in thevo ice control sys‐
te m.
% A prom ptfor consent tothe data transmis‐
sion only occurs if the cor responding
Mercedes me connect service is not activa‐
te d.
Data transfer if Mercedes me connect serv‐
ices are not activated
If no Mercedes me connect services are activa‐
te d and the data pr otection prom pthas been
confirmed thefo llowing data is transmitted:
R Vehicle identification number
R Time of the call
R Reason forth e initiation of the call
R Confirmation of the data pr otection prom pt
R Country indicator of theve hicle
R Set language forth e multimedia sy stem
R Telephone number of the communication
platform ins talled in theve hicle If a call is made
for a service appointment via
th e service reminder, thefo llowing data is also
transmitte d:
R Cur rent milea geand main tenance da ta
If a call is made af ter auto matic accident or
breakdown de tection using the multimedia sys‐
te m, thefo llowing data is also transmitted:
R Cur rent milea geand main tenance da ta
R Cur rent vehicle location
If Ac cident and Breakdown Management is
called via thevo ice control sy stem and no
service has been activated, but the data pr otec‐
tion query has been confi rmed, thefo llowing
data can also be called up from theve hicle by
th e Mercedes-Benz Cus tomer Centre:
R Curr entvehicle location
If th e data pr otection prom pthas been rejected,
th efo llowing data is transmitte dto enable targe‐
te d advice and an ef ficient service:
R Reason forth e initiation of the call
R Rejection of the data pr otection prom pt
R Country indicator of theve hicle 276
MBUX multimedia sy stem

Apps
for Smartphone Integration
R Mercedes-Benz Link (implementation of the
function using the Mercedes-Benz Link con‐
trol box)
R Apple CarPlay ®
R Android Auto
Yo u can start Smartphone In tegr ation using the
Mercedes me & Apps menu.
Yo u can end Smartphone In tegration bydiscon‐
necting the connecting cable between the
mobile phone and multimedia sy stem.
% Mercedes-Benz recommends disconnecting
th e connecting cable only when theve hicle
is stationar y.
Overview of transfer redve hicle data
When using Smartphone Integration, cer tain
ve hicle data is transfer redto the mobile phone.
This enables youto getth e best out of selected
mobile phone services. Vehicle data is not
directly accessible.
The following sy stem information is transmit ted:
R Software release of the multimedia sy stem R
System ID (anonymised)
The transfer of this data is used toalter how
con tent is displ ayed tocor respond tothe driving
situation.
The following position data is transmitte d:
R Coordinates
R Speed
R Compass direction
R Acceleration di rection
This da tais used bythe mobile phone to
impr ovethe accuracy of the navigation (e.g. for
continuation in a tunnel). Mercedes-Benz eme
rgency call sy stem Information on
the Mercedes-Benz emer‐
ge ncy call sy stem The Mercedes-Benz emer
gency call sy stem only
functions in areas where mobile phone co verage
is available from there leva nt contract pa rtner.
Insu fficient network co verage from there leva nt contract pa
rtner may result in an emergency call
not being transmitted.
The ignition must be switched on before an auto‐
matic emergency call can be made.
% The Mercedes-Benz emer gency call sy stem
is activated at thefa ctor y.Using the
Mercedes-Benz emer gency call sy stem is
free of charge. Overview of
the Mercedes-Benz emer gency
call sy stem The Mercedes-Benz emer
gency call sy stem can
help todecisively reduce the time between an
accident and the ar riva l of emer gency services
at the site of the accident. It helps locate an
accident site in places that are dif ficult to
access.
The emer gency call can be made au tomatical ly
( / page 281) or manually (/ page 282). Only
make emer gency calls if you or others are in
need of rescue. Do not make an emer gency call
in theeve nt of a breakdown or a similar situa‐
tion. 280
MBUX multimedia sy stem

Yo
u can find more information on there gional
av ailability of eCall at: https://www.mercedes-
benz-mobile.com/ext ra/ecall/
Messages on the displ ay
The following messages appear in the display:
R SOS NOT READY :th e ignition is not on or
th ere is a malfunction with the emer gency
call sy stem . This does not necessarily indi‐
cate comple tefailure of the emer gency call
sy stem. Emer gency calls call still be trans‐
mit ted.
The display only refers to theve hicle and
does not take account of theav ailability of
mobile phone networ ksand the Mercedes-
Benz emer gency call centre.
The functional readiness of the emer gency
call sy stem on theve hicle can be seen when
th eSOS NOT READY display disappears once
th e ignition is switched on.
R G: The icon appears in the display during
an active emer gency call.
% Ifth ere is a malfunction in the Mercedes-
Benz emer gency call sy stem (e.g. a fault with th
e speaker, microphone, airbag, SOS but‐
to n), a cor responding message appears in
th e multifunction display of the instrument
clus ter. Tr
iggering an automatic Mercedes‑Benz
emer gency call Re
quirements:
R The ignition is switched on.
R The star ter battery is suf ficiently charge d.
The Mercedes‑Benz emer gency call sy stem trig‐
ge rs an emer gency call au tomatical lyin thefo l‐
lowing cases:
R After activation of there stra int sy stems such
as airbags or seat belt tensioners af ter an
accident
The emergency call has been made:
R Avo ice connection is made tothe
Mercedes‑Benz emer gency call centre.
R A messa gewith accident data is transmitted
to the Mercedes‑Benz emer gency call centre. The Mercedes‑Benz emergency call centre
can transmit
theve hicle position data toone
of the public emer gency services call cen‐
tres.
R Under cer tain circums tances da tais also
transmitte d inthevo ice channel tothe
Mercedes‑Benz emer gency call centre.
This allo wsmeasu resfo rre scue, reco very or
to wing toa Mercedes‑Benz Service Cent reto
be initiated quickl y.
The SOS button in theove rhead control panel
fl ashes until the emer gency call is finished.
It is not possible toimmediately end an auto‐
matic emer gency call.
If th e Mercedes‑Benz emer gency call sy stem
cann otconnect tothe Mercedes‑Benz emer‐
ge ncy call centre, the emer gency call is au tomat‐
ically sent tothe public emer gency services call
centre.
If no connection can be made tothe public
emer gency services, a cor responding message
appears inthe displa y. MBUX multimedia sy
stem 281

R
Direction of tr avel
R Vehicle identification number
R Vehicle drive type
R Number of people de term ined tobe in the
ve hicle
R Whe ther Mercedes me connect is available
or not
R Whe ther the emer gency call was initiated
manually or automatically
R Time of the accident
R Language setting on the multimedia sy stem
Fo r accident clarification purposes, thefo llowing
measures can be take n up toan hour af terthe
emer gency call has been initia ted:
R The cur rent vehicle position can be de ter‐
mined.
R Avo ice connection totheve hicle occupants
can be es tablished.
% ForRu ssia: various functions, e.g. receiving
traf fic information, cannot be per form ed for
up totwo hou rsafte r sending an emer gency
call. Self diagnosis function of the eme
rgency call
sy stem Yo
ur car verifies the operability of the emer‐
ge ncy call sy stem each time the ignition is ON.
In case of sy stem failure, you will be informed
with text messa geon the instrument clus ter and
with red indicator SOS NOT READY onthe dis‐
pla y.
Please, make sure, that during 30 seconds af ter
switching ignition ON there d indicator SOS
NOT READY inthe upper right corner of display
is switched OFF, this means the emer gency call
sy stem passed diagnostics successfully. St
arting/ending ERA-GLONASS test mode Re
quirements:
R The star ter battery is suf ficiently charge d.
R The ignition is switched on.
R The vehicle has been stationary for at least
one minute. %
The test mode is cur rently available in the
fo llowing countries, forex ample:
R Russia
R Belarus
R Kazakh stan
R Armenia
R Kyrgyzs tan #
Tostart thete st mode: press and hold the
~ button on the multifunction steering
wheel for at least five seconds.
The test mode is star ted and automatically
ends af terth e language test has been per‐
fo rm ed. #
Toend thete st mode manuall y:switch off
th e ignition.
The test mode is ended. MBUX multimedia sy
stem 283

#
With your hand flat, push down active bonnet
1 inthe area around the hinges on bo th
sides (ar rows).
In doing so, the actuator is depressurised
and you may hear a hissing sound.
The engine bonnet must en gage in position. #
Ifth e active bonn etcan be raised slight lyat
th ere ar in the area of the hinges, repeat the
st ep until it engages cor rectl y. Opening and closing
the bonnet &
WARNING Risk of accident due todriv‐
ing with the bonn etunlo cked
The bonn etmay open and block your vie w. #
Neverre lease the bonn etwhen driving. #
Before every trip, ensure that the
engine bonn etis loc ked. &
WARNING Risk of accident and inju ry
when opening and closing the bonn et
The bonnet may suddenly drop into the end
position.
There is a risk of injury for an yone in the bon‐
net's range of mo vement. #
Open or close the bonn etonly when
th ere is nobody in the bonn et's range of
mo vement. &
WARNING Danger of bu rns when open‐
ing the bonn et
If yo u open the engine bonn etwhen the
engine has overheated or during a fire inthe
engine compartment, you could come into
contact with hot gases or other escaping
operating fluids. #
Before opening the bonn et, allow the
engine tocool down. #
Intheeve nt of a fire inthe engine com‐
partment, keep the engine bonn et
closed and call thefire service. &
WARNING Risk of inju rydue tomoving
parts
Components in the engine compartment may
continue running or start up sudden ly,even if
th e ignition is switched off.
Make sure of thefo llowing before per form ing
ta sks in the engine compartmen t: #
Switch the ignition off. #
Neverre ach into the danger zone sur‐
ro unding moving co mponents, e.g. the
ro tation area of thefa n. #
Remo vejewe llery and watches. #
Keep items of clo thing and hair away
from moving parts. &
WARNING Risk of inju ryfrom touching
co mp onents under voltage
The ignition sy stem and the fuel injection
sy stem workunder high voltage. You could
re cei vean electric shoc k.294
Maintenance and care

#
Neverto uch co mponents of the ignition
sy stem or the fuel injection sy stem
when the ignition is switched on. &
WARNING Risk of bu rns from hot com‐
ponent parts in the engine compartment
Cer tain component parts in the engine com‐
partment can be very hot, e.g. the engine,
th e cooler and parts of theex haust sy stem. #
Allow the engine tocool down and only
to uch co mponent parts described in
th efo llowing. &
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. Opening
the bonnet #
Torelease the bonn et, pull on handle 1. #
Push handle 1ofthe bonn etcatch up wards
and lift the bonn etby appr oximately 40 cm.
Closing the bonnet #
Lowe rth e bonn etto a height of around
20 cm and then allow it tofall, applying a lit‐
tle forc e as you let it go. Main
tenance and care 295

#
Ifth e bonn etcan still be lif ted slightl y,open
th e bonn etagain and close it with a little
more forc e until it engages cor rectly. Engine oil
Che
cking the engine oil le vel using the on-
board compu ter
Re quirements:
R the engine has been warmed up.
R theve hicle is par ked on a le vel sur face.
R The engine is running at idle speed.
The engine oil le vel is de term ined during driving.
De term ining the engine oil le vel can take up to
30 minutes with a normal driving style and even
longer with an active driving style.
On-board computer: 4 Service 5
Engine oil level
Yo u will see one of thefo llowing messages on
th e multifunction display:
R Engine oil level Measuring now : measure‐
ment of the oil le vel is not yet possible. #
Repeat there qu est af ter a maximum of
30 minutes' driving.
R Engine oil level OK andthe bar display for
indicating the oil le vel on the multifunction
display is green and is between "min" and
"max": the oil le vel is cor rect.
R Engine oil level Add 1,0 l andthe bar display
fo r indicating the oil le vel on the multifunc‐
tion display is orange and is below "min": #
Add 1 l of engine oil.
R Reduce engine oil level andthe bar display
fo r indicating the oil le vel on the multifunc‐
tion display is orange and is abo ve"max": #
Drain off any excess engine oil that has been
added. Todo so, consult a qualified specialist
wo rkshop.
R For engine oil level turn on ignition #
Switch on the ignition tocheck the engine oil
le ve l.
R Engine oil level System inoperative : The oil
le ve l sensor is defective or not connec ted. #
Consult a qualified specialist workshop.
R Engine oil level System currently unavail. #
Close the bonn et.
To pping up engine oil &
WARNING Risk of bu rns from hot com‐
ponent parts in the engine compartment
Cer tain component parts in the engine com‐
partment can be very hot, e.g. the engine,
th e cooler and parts of theex haust sy stem. #
Allow the engine tocool down and only
to uch co mponent parts described in
th efo llowing. &
WARNING Risk offire and injury from
engine oil
If engine oil comes into con tact wi thhot
component parts in the engine compart‐
ment, it may ignite. #
Make sure that no engine oil is spilled
next tothefiller opening. 296
Maintenance and care

R
Remo vedirt immediatel y,where possible,
whilst avoiding rubbing too hard. There is
ot herwise a risk of damaging the decorative
fo il ir reparably.
R Ifth ere is dirt on thefinish or if the decora‐
tive foil is dull: use thePa int Cleaner recom‐
mended and appr ovedfo r Mercedes-Benz.
R Insect remains: soak with insect remo ver and
ri nse off the treated areas af terw ards.
R Bird droppings: soak with water and rinse off
af te rw ards.
R Topreve ntwate rst ains, dry a foil-wrapped
ve hicle with a soft, absorbent clo thafter
eve rycar wash.
Av oiding dama getothe decorative foil
R The service life and colouring of decorative
foils are impaired by:
- sunlight
- temp erature, e.g. hot air blo wer
- weather conditions
- stone chippings and dirt
- chemical cleaning agents -
oily products
R Do not use polish on matt decorative foil.
Po lishing will ha vethe ef fect of shining the
fo il-wrapped sur face.
R Do not treat matt or stru ctured deco rative
fo ils with wax.Pe rm anent stains may occur.
Sc ratches, cor rosive deposits, areas af fected by
cor rosion and damage caused byincor rect care
cannot al ways be comple tely repaired. In such
cases, visit a qualified specialist workshop.
Yo u can obtain more information on care and
cleaning products from the manufacturer.
In the case of foil-wrapped sur faces, optical dif‐
fe re nces may occur between the sur faces that
we renot pr otected bya decorative foil af ter
re moving a decorative foil.
% Have wo rkor repairs todecorative foils car‐
ri ed out at a qualified specialist workshop,
e.g. in a Mercedes-Benz Service Centre. Note
s on care of car parts &
WARNING Risk of entrapment if the
windscreen wipers are swit ched on while
th e windscreen is being cleaned
If th e windscreen wipers are set in motion
while you are cleaning the windscreen or
wiper blades, you can be trapped bythe
wiper arm. #
Alw ays switch off the windscreen wip‐
ers and the ignition before cleaning the
windscreen or wiper blades. &
WARNING Risk of bu rns from theta il‐
pipe and tailpipe trims
The exhaust tailpipe and tailpipe trims can
become very hot. If you come into contact
with these parts of theve hicle, you could
burn yourself. #
Alw ays be particular lycareful around
th eta ilpipe and theta ilpipe trims and
supervise children especially closely in
th is area. 302
Maintenance and care

#
Remo vetheva lve cap from valve 7 onthe
fa ulty tyre. #
Screw filling hose 8onto valve 7. #
Insert plug 4into a 12V soc ket in your
ve hicle. #
Switch on the ignition. #
Switch on the tyre inflation compressor using
On/Off switch 3.
The tyre is inflated. Fir st, tyre sealant is pum‐
ped into the tyre. The pressure may brief ly
ri se toappr oximately 500 kPa (5 bar/73 psi).
Do not switch off the ty reinflation compres‐
sor during this phase! #
Let the tyre inflation compressor runfo r a
maximum of ten minu tes.
The tyre should then ha veattained a tyre
pressure of at least 200 kPa (2.0 bar/
29 psi).
If tyre sealant leaks out, make sure you clean the
af fected area as quickly as possible. It is prefera‐
ble touse clean water.
If yo uge t tyre sealant on your clo thing, ha veit
cleaned as soon as possible with per chloroe thy‐
lene.
If, af terte n minutes, a tyre pressure of
200 kPa (2.0 bar/29 psi) has not been
attained: #
Switch off the tyre inflation compressor. #
Unscr ew thefilling hose from theva lve of the
defective tyre.
Please no tethat tyre sealant may leak out when
unscr ewing thefilling hose. #
Drive forw ards or in reve rseve ry slowly for
appr oximately 10m. #
Pump up the tyre again.
Af ter a maximum of ten minu testh e tyre
pressure must be at least 200 kPa (2.0 bar/
29 psi). &
WARNING Risk of accident due tothe
specified tyre pressure not being
attained
If th e minimum tyre pressure is not reached
af te rth e specified time, the tyre is too badly
damaged. The tyre sealant cannot repair the
tyre in this ins tance.
The braking and driving characteristics may
be great lyimpaired. #
Do not continue driving. #
Consult a qualified specialist workshop. If, af
terte n minutes, a tyre pressure of
200 kPa (2.0 bar/29 psi) has been attained: #
Switch off the tyre inflation compressor. #
Unscr ew thefilling hose from theva lve of the
defective tyre. 312
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: 318
Breakdown assis tance