ECU MERCEDES-BENZ E-CLASS COUPE 2022 Workshop Manual

%
When you are reve rsing with a trailer, remem-
ber touse theTrailer Manoeuvering Assist
function (/ page 242). F
F
olding t
olding t he ball nec
he ball nec k out and in
k out and in &
W
WARNING
ARNING Risk of accident due tothe ball
neck not being engaged
If th e ball neck is not engaged, the trailer may
come loose. #
Always engage the ball neck as descri-
bed. &
W
W ARNING
ARNING Risk of injury from ball neck
swinging outwards
The ball neck may swing outwards when
unlocking or when it has not been proper ly
engaged.
There is a risk of injury within the ball neck's
ra nge of mo vement! #
Unlock the ball neck only when its range
of mo vement is unobstructed. #
Always be sure the ball neck is engaged
when folding in wards. *
N NOOTE
TE Increased risk of damage toprop-
erty due tofolded-out ball neck #
When the trailer is not coupled or the
bicycle rack is attached, fold in the ball
neck or, in the case of a fully electric
trailer hitch, retract the ball nec k. *
N
NO
OTE
TE Damage totheve hicle due toincor-
re ct use of the trailer hitch When a trailer hitch is used
toreco ver a vehi-
cle, theve hicle may be damaged in the proc-
ess. #
Use the trailer hitch only for pulling a
trailer or attaching appr oved car rier sys-
te ms (e.g. a bicycle rack ). R
R
eq
eq uir
uir ements:
ements:
R The vehicle is secured against rolling away.
R The swivel range is clear. R
The trailer cables or ada pter plugs ha vebeen
re mo ved.
F
F olding t
olding t he ball nec
he ball nec k out
k out #
Pull switch 2until the ball neck unloc ks.
The ball neck will fold out from under there ar
bumper.
Indicator lamp 1will 0ash. Driving and parking
245 245

#
Pull the ball neck in the direction of the ar row
until it engages audibly in a vertical position.
Indicator lamp 1onthe ball neck release
switch will go out.
If th e ball neck is not securely loc ked in place,
th eTrailer coupling Check lockmessage will
appear on the inst rument displa y. #
Remo vethe co ver cap from the ball head and
store it in a safe place. Make sure
that the ball on the ball neck is clean.
Check that it is either greased or dry (g rease-
free), depending on the inst ructions forth e trailer.
F
F olding t olding t he ball nec
he ball nec k in
k in #
Pull switch 2until the ball neck unloc ks.
The ball neck will fold up under there ar
bumper.
Indicator lamp 1will 0ash. #
Push the ball neck in the direction of the
ar ro w until it engages audibly behind the
bumper.
Indicator lamp 1will go out and the message
on the inst rument display will disappear.
Obser vethe information about the displa yson the
inst rument cluster:
R Indicator and warning lamps (/ page 433)
R Display message s (/page 375) Coupling up/uncoupling a tr Coupling up/uncoupling a tr
ailer
ailer &
W
WARNING
ARNING Risk of injury due toach ange
in vehicle le vel
V
V ehicles wit
ehicles wit h lev
h level contr
el contr ol:
ol:theve hicle le vel
may be changed unintentionall y,e.g. by ot her
people. If you couple or uncouple the trailer
during this time, you may become trapped. In
addition, other people could become trapped
if parts of their body are between theve hicle
body and the tyres or underneath theve hicle.
Obser vethefo llowing when coupling or
uncoupling: #
Do not open or close any doors or the
boot lid. #
Do not initiate the le vel control and do
not operate theDY NAMIC SELECT
switch. #
Do not lo ckor unlock theve hicle. R
R
eq
eq uir
uir ements:
ements:
R The ball neck is extended and engaged in a
securely loc ked position. 246
246
Driving and parking

Tr
ailers with a 7-pin plug can be connected tothe
ve hicle with thefo llowing adap ters:
R Adapter plug
R Adapter cable
The trailer will be cor rectly de tected bytheve hi-
cle only if thefo llowing conditions are met:
R The trailer is connected cor rectl y.
R The trailer lighting system is in working order.
The functions of thefo llowing systems will be
a.ec tedbya cor rectly connected trailer:
R ESP ®
trailer stabilisation
R Trailer Manoeuvering Assist
R Active Lane Keeping Assist
R Parking Assist PARKTRONIC
R Active Parking Assist
R Blind Spot Assist or Active Blind Spot Assist
R Drive Away Assist
R Cross Tra1c Ale rt
R Reversing camera
R 360° camera R
AIR BODY CONTROL
Coupling up a tr
Coupling up a tr ailer
ailer
* NO
NOTE
TEDamage tothe star ter battery due
to full dis charge Charging
the trailer battery using the po wer
supply of the trailer can damage the star ter
batter y. #
Do not use theve hicle's po wer supply to
ch arge the trailer batter y. #
Remo vethe co ver cap from the ball head and
store it in a safe place. #
Position the trailer on a le vel sur face behind
th eve hicle and couple it up totheve hicle. #
Open the soc ket cap. #
Inse rtthe plug with lug 1ingroo ve 3 on
th e soc ket. #
Turn bayonet coupling 2totheright as far 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. Driving and parking
247
247

Under
thefo llowing conditions, a message may
appear on the inst rument display even if the
trailer has been connec ted cor rectl y:
R LEDs ha vebeen ins talled in the trailer lighting
system.
R The cur rent has fallen below the trailer lighting
system's minimum cur rent (50 mA).
% Accessories can be connected tothe perma-
nent po wer supply up to180 W and tothe
po we r supply that is switched on via the igni-
tion loc k.
U
U ncoupling a tr
ncoupling a tr ailer
ailer &
W
WARNI NG
ARNI NGRisk of being crushed and
becoming trapped when uncoupling a
trailer
When uncoupling a trailer with an engaged
inertia-activated brake, your hand may
become trapped between theve hicle and the
trailer dr awbar. #
Do not uncouple trailers with an engaged
ove rrun brake. *
N NOOTE
TE Damage during uncoupling with an
engaged overrun brake The
vehicle may be damaged if you uncouple
with an engaged overrun brake. #
Do not uncouple trailers with an engaged
ove rrun brake. &
W
WARNING
ARNING Risk of becoming trapped when
disconnecting the trailer cable
V
V ehicles wit
ehicles wit h lev
h level contr
el contr ol syst
ol system:
em:Thevehicle
may lo wer when the trailer cable is disconnec-
te d.
This could result in you or other people
becoming trapped if your or their limbs are
between theve hicle body and the tyres or
underneath theve hicle. #
Make sure that nobody is underneath the
ve hicle or in the immediate vicinity of the
wheel ar ches when you disconnect the
trailer cable. #
Secure the trailer against rolling away. #
Disconnect the electrical connection between
th eve hicle and the trailer. #
Uncouple the trailer. #
Place the co ver cap on the ball head.
% T
Tr
railer
ailer s wit
s wit h LED lighting:
h LED lighting: aTer uncoupling the
traile r,switch theve hicle on and then o.
again. Bicy
Bicy
cle r
cle r ac
ack function
k function &
W
WARNING
ARNING Risk of an accident if the bicy-
cle rack is used 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.
R the bicycle rack is used incor rectl y.
R the bicycle rack is secured tothe ball neck
beneath the ball head. 248
248
Driving and parking

Obser
vethefo llowing foryo ur ow n sa fety and
th at of other road users:
R always adhere tothe permissible load
capacity of the trailer hitch.
R always obser vethe permissible rear axle
load of theto wing vehicle.
R use the bicycle rack only totransport bicy-
cles.
R always proper lysecure the bicycle rack by
attaching it tothe ball head.
R use only bicycle rack s appr oved by
Mercedes-Benz.
R always obser vethe bicycle rack operating
instructions. *
N
NOOTE
TE Damage toor breakage of the trailer
hitch due tounsuitable or improper lyused
bicycle rack. #
Only use bicycle rack s appr ovedby
Mercedes-Benz prope rly as described
bel ow. *
N
NO
OTE
TE Increased risk of damage toprop-
erty due tofolded-out ball neck #
When the trailer is not coupled or the
bicycle rack is attached, fold in the ball
neck or, in the case of a fully electric
trailer hitch, retract the ball nec k. *
N
NO
OTE
TE The ope rating permit may be in vali-
dated due tothe illegal installation of
trailer hitches The installation – including
retro/tting – of a
non- folding or non-remo vable trailer hitch that
eve n partial lyconceals the license plate or the
lighting system is prohibited. #
Obser vethe applicable legal regulations
fo rth e installation of trailer hitches. 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 75 kg.
The maximum load capacity is calculated from the
we ight of the bicycle rack and the bicycle rack
load. Driving and parking
249 249

Obser
vethe no tes on driving with a roof load,
trailer or fully laden vehicle (/ page 162).
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 343).
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
tructions
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.
Obser vethefo llowing information:
R Perm itted towing me thods (/ page 333)
R The no tes on towing theve hicle with bo th
axles on thegr ound (/ page 333) 250
250
Driving and parking

Ov
Ov
er
ervie
vie w of ins
w of ins tr
trument display
ument display 1
Speedome ter
The segments on the speedome ter indicate
th e statuses of thefo llowing systems: cruise
control/limiter/Active Distance Assist
DISTRONIC
2 Index points
3 Outside temp erature 4
Time
5 Area for additional values (e xample:rev coun-
te r): rev counter/navigation/ECO display/
consum ption/G-me ter/date
The fuel supply will be inter rupted toprotect
th e engine when there d mark on therev
counter (o verrev ving range) is reached.
6 Coolant temp erature display During normal operation,
the coolant temp er-
ature display is permitted torise to120°C.
Ve hicles with 48 V on-board elect rical system:
POWER and CHARGE displa ys(electrical drive
support and recuperation po wer of the elec-
tric mo tor)
7 Selected drive prog ram
8 Selected transmission position 252 252
Instrument display and on-board co
mputer

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 Displa y:
- 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 R
Activation of the downloaded system update
by restarting the system
% If automatic soTware updates are activated,
th e system updates will be downloaded auto-
maticall y.
The multimedia system pr ovides a message when
a system update is available.
Yo u ha vethefo llowing selection options:
R Accept and install
The system update will be downloaded in the
background.
R Information
Information about the pending system update
is displa yed.
R Later
The system update can be downloaded man-
ually at a later time.
Deep syst Deep syst em updat
em updates
es
Deep system updates access vehicle or system
settings and can therefore only be car ried out
when theve hicle is stationary and the ignition is
switched o.. MBUX multimedia system
269
269

If
th e download of a deep system update is com-
ple teand the downloaded system update is ready
fo r installation, you will be informed of this aTer
th e next ignition cycle, forex ample.
% Park theve hicle safely in a suitable location
before starting the installation.
Re quirements forth e installation:
R The ignition is switched o..
R Notes and warnings ha vebeen read and
accep ted.
R The electric parking brake has been applied.
If all requ irements ha vebeen ful/lled, the down-
loaded system update is installed. The multimedia
system cannot be operated while the downloaded
system update is being installed and vehicle func-
tions are restric ted.
If errors should occur during the installation, the
multimedia system 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.Consult a quali/ed special-
ist workshop toresol vethe problem. Se
Se
tting up a W
tting up a W i-F
i-Fi ho
i ho tspot
tspot R
R
eq
eq uir
uir ements:
ements:
R T
To se
o se t up t
t up t he W
he Wi-F
i-Fi connection of t
i connection of t he multime-
he multime-
dia sy
dia sy st
stem wit
em wit h e
h ext
xter
er nal ho
nal ho tspo
tspots:
ts:your vehicle
does not ha vea permanent lyinstalled com-
munication module.
R The device tobe connected supports at least
one of the types of connection described.
Multimedia system: 4 © 5
Settings 5
System
5 Wi-Fi & Bluetooth
A
A ctiv
ctiv ating/deactiv
ating/deactiv ating W
ating Wi-Fi
i-Fi #
Select Wi-Fi.
Connecting t
Connecting t he multimedia syst
he multimedia syst em wit
em with an e
h an ext
xter-
er-
nal ho
nal ho tspo
tspot using W
t using W i-Fi
i-Fi
The type of connection established must be selec-
te d on the multimedia system and on the device
to be connected.
% 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. 270
270
MBUX multimedia system

#
Con/ rmthe 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. #
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. MBUX multimedia system
271
271