ECU MERCEDES-BENZ E-CLASS SALOON 2022 Repair Manual

*
N
N O
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
N O
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. Ext
Ext ending t
ending t he ball nec
he ball nec k full
k fully electr
y electr ically
ically #
Pull button 2.
Indicator lamp 1will 0ash and the message
Trailer coupling extending… will appear onthe
inst rument displa y.
The ball neck will extend fully electricall y. #
Wait until the ball neck has loc ked in place.
When indicator lamp 1is continuously lit, the
ball neck is securely loc ked in place.
If th e ball neck is not securely loc ked in place,
indicator lamp 1will 0ash and the message
Check trailer hitch lock will appear onthe
inst rument displa y. Driving and parking
275
275

R
R
e
etr
tr acting t
acting t he ball nec
he ball nec k full
k fully electr
y electr ically
ically #
Pull button 2.
Indicator lamp 1will 0ash and the message
Trailer coupling extending… will appear onthe
inst rument displa y.
The ball neck will retract fully electricall y.#
Wait until the ball neck has loc ked in place.
When indicator lamp 1goes out, the ball
neck is securely loc ked in place.
If th e ball neck is not securely loc ked in place,
indicator lamp 1will 0ash and the message
Check trailer hitch lock will appear onthe
inst rument displa y.
Obser vethe information about the displa yson the
inst rument clus ter:
R Indicator and warning lamps (/ page 481)
R Display message s (/page 413) Ext
Ext
ending and re
ending and retr
tracting t
acting t he ball nec
he ball nec k full
k fully electr
y electr i-
i-
call
call y (multimedia syst
y (multimedia syst em)
em) &
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. *
N
NOOTE
TE Damage tothe all-electric trailer
hitch due toadditional pressure The all-elect
ric trailer hitch could be mechani-
cally damaged byapplying additional pressure
when the ball neck is being extended or
re tracted. #
Do not make the ball neck extend/
re tract faster byapplying additional pres-
sure. 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.
Multimedia system: 4 © 5
Settings 5
Quick access
Ext
Ext ending t
ending t he ball nec
he ball nec k full
k fully electr
y electr ically
ically #
Select Ü.
The Trailer coupling extending… display mes-
sage appears on the multifunction displa y.
The ball neck will extend fully electricall y. #
Wait until the ball neck has loc ked in place.
If th e ball neck is not securely loc ked in place, the
Check trailer hitch lock message will appear on
th e multifunction displa y.
R
R e
etr
tr acting t
acting t he ball nec
he ball nec k full
k fully electr
y electr ically
ically #
Select Ü.
The Trailer coupling extending… display mes-
sage appears on the multifunction displa y.
The ball neck will retract fully electricall y. #
Wait until the ball neck has loc ked in place. 276
276
Driving and parking

If
th e ball neck is not securely loc ked in place, the
Check trailer hitch lock message will appear on
th e multifunction displa y.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.
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. Driving and parking
277
277

#
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. 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. 278
278
Driving and parking

*
N
N O
OTE
TE Damage tothere ar bumper from
ins talling adap ter cables or adap ter plugs The
following parts could be damaged when
swiveling the ball neck fully electricall y:
R Bumper
R Adapter cable
R Adapter plug #
Alwaysre mo vethe adap ter cable or
adap ter plug before swiveling the ball
neck fully electricall y.#
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.
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 mount the bicycle rack proper lyby
attaching tothe ball head and the ball
neck guide pin, if possible.
R when transporting four bicycles, alw ays
use bicycle rack s which ha veadditional
support on the ball neck guide pin.
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 Driving and parking
279
279

Mercedes-Benz
recommends removing all de tach-
able parts from bicycles (e.g. bask ets, ch ild seats,
batteries) before loading them onto the bicycle
ra ck . This will impr ovethe aerodynamic resist-
ance and cent reofgrav ity of the bicycle 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 cen-
tral axis
Obser vethefo llowing information when loading
th e bicycle rack: Loading t Loading t
he bicy he bicycle r
cle rack
ack 3 bicy
3 bicy
cles
cles 4 bicy
4 bicycles
cles
To talwe ight
of bicycle
ra ck and load Up
to75 kg Up to100 kg
Max. distance
1 420 mm 420 mm
Max. distance
2 300 mm 400 mm When transporting
four bicycles or a tota lwe ight
between 75 kg and 100 kg, alw ays use bicycle
ra ck s with additional support on the trailer hitch
guide pin. 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- Driving and parking
281
281

support and
recuperation po wer of the elec-
tric mo tor)
Plug-in hybrid: cur rent state of charge ofthe
high- voltage battery
7 Selected drive prog ram
8 Selected transmission position
9 Centre display area of the inst rument display
(e xamp le: standard display for a trip): assis-
ta nce/telephone/navigation/trip/media/
ra dio/styles and displa ys/service/possible
settings for head-up display
A Fuel le vel and fuel /ller 0ap location indicator Ov
Ov
er
ervie
vie w of butt
w of butt ons on t
ons on the st
he steer
eering wheel
ing wheel
Depending on the equipment, the la yout and the
design of the control elements on the steering
wheel may di.er. 1
Control panel for cruise control/limiter or
Ac tive Distance Assist DISTRONIC
(/ page 227)
2 G Back button, on-boa rdcomputer
3 Touch Control, on-board computer
To navigate: swipe
To con/rm: press a
4 ò Main menu, on-board computer 5
ò Home screen, MBUX multimedia system
6 Touch Control, MBUX multimedia system
To navigate: swipe
To con/rm: press a
7 G Back button, MBUX multimedia system
8 Cont rol panel forth e MBUX multimedia sys-
tem
£ LINGU ATRO NIC
9 Toadjust the brightness of the inst rument
lighting Oper Oper
ating t
ating t he on-boar
he on-boar d com
d com put
puter
er
Obser vethe legal requ irements forth e country in
which you are cur rently driving when ope rating
th e on-board computer. Instrument display and on-board computer
285
285

#
Onthe cor responding menu, use the leT-hand
To uch Control toscroll tothe end of the list. #
Press the leT-hand Touch Control.
The selected menu will be displa yed full-
screen. 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
Start of the display range of there cuperated
energy
4 End of the display range of the combined out-
put of thehy brid system
The po wer me ter has thefo llowing functions:
R The po wer me ter displa ys the output obtained
from thehy brid system.
R Area 2–3 shows th ere ga ined energy.
R Pow errange 3–4 show sth e combined
output of thehy brid system.
When the po wer me ter needle is at position 1,
th eve hicle is switched o.. The combustion
engine and the electric mo tor are switched o.. 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
The po werav ailability displ ayhas thefo llowing
functions:
R In electric mode, area 1–2 showswhat
percentage of the electrical drive is cur rently Instrument display and on-board computer
287
287

being used. The combustion engine is
switched on at a percentage of 100%. If
the
combustion engine is running, boost mode
sh ow sth e electrical po wer assistance of the
drive.
R Area 3–4 shows th ere cuperation and
ch arging behaviour using the combustion
engine.
R From point 3,the maximum recuperated
energy has been reached.
% Due tovarious system limits, the displa yed
va lue in area 3–4 may temp orarily di.er
slightly from the actual value. Displa Displa
ying t
ying t he 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 on t
s on the ins
he instr trument display
ument display
Displa yson the inst rument displa y:
u Active Parking Assist activated
(/ page 267)
é Parking Assist PARKTRONIC deactivated
(/ page 264)
h Cruise control (/ page 226)
È Limiter (/ page 226)
ç Active Distance Assist DISTRONIC
(/ page 229)
ê Active Brake Assist (/ page 244)
à Active Steering Assist (/ page 237)
¬ Active Stop-and-Go Assist (/ page 236)
à Active Lane Keeping Assist (/ page 249)
õ PLUG‑IN HYBRID operation activated
ñ Operating mode, other operating mode dis-
pla ys
è Electric range
° Haptic accelerator pedal
(/page 185, 183, 180) ò
Sound generator inoperative (/ page 427)
è ECO start/stop function (/ page 178)
ë HOLD function (/ page 223)
_ Adaptive Highbeam Assist (/ page 142)
Ad aptive Highbeam Assist Plus
(/ page 143)
ð Maximum permissible speed exceeded (for
cer tain countries only)
V
V ehicles wit ehicles wit h
hTr
Tra1c
a1c Sign Assist:
Sign Assist: detected instruc-
tions and tra1c signs (/ page 244).
Fo r an overview of the indicator and warning
lamps, see (/ page 481). 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. 288
288
Instrument display and on-board computer

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
303
303