ECU MERCEDES-BENZ EQC SUV 2022 Service Manual

Pr
otective co vers which are necessary for
wireless charging are an exception. Char
Char
ging a mobile phone wir
ging a mobile phone wir elessly
elessly R
R
eq
eq uir
uir ements:
ements:
R The mobile phone is suitable for wireless
ch arging.
A list of compatible mobile phones can be
fo und at: https://www.mercedes-benz-
mobile.com. #
Place the mobile phone as close tothe centre
of mat 1as possible with the display facing
upwards.
When thech arging symbol is shown in the
multimedia system, the mobile phone is being
ch arge d.
Malfunctions during thech arging process are
shown in the central displa y.
% The mat can be remo vedby theta bfo r clean-
ing, e.g. using clean, luk ewarmwater.
R
R adio eq adio eq uipment appr ov
uipment appr oval number
al number s f
s f or Br
or Br azil
azil
This device operates on a secondary basis, that is
to say it has no pr otection against harmful inter-
fe re nce, not even from the same type of stations,
and must not cause inter fere nce with systems
ope rating on a prima rybasis.
This product is permitted in accordance with the
procedure de/ned in Directive 242/2000 bythe
Brazilian telecommunications agency ANATEL and
meets the applicable tech nical requ irements.
Fu rther information is available on the ANATEL
we bsite. www.anatel.go v.br #
Further information on the declaration of con-
fo rm ity forve hicle components which receive
and/or transmit radio waves. F
F
itting/r
itting/r emo
emoving t
ving t he
he0oor
0oor mats
mats &
W
WARNING
ARNING Risk of accident due toobjects
in the driver's foot we ll
Objects in the driver's foot we ll may impede
pedal tr avel or block a depressed pedal.
This jeopardises the operating and road saf ety
of theve hicle. #
Stow all objects in theve hicle securely
so that they cann otget into the driver's
fo ot we ll. #
Always /t the 0oor mats securely and as
prescribed in order toensure that there
is alw ays su1cient room forth e pedals. #
Do not use loose 0oor mats and do not
place 0oor mats on top of one ano ther. Seats and st
owing
125 125

Dr
Dr
iving
iving N
No
ot
tes on electr
es on electr ic mode
ic mode &
W
W ARNING
ARNING Risk ofchemical burns and poi-
soning from damaged high-voltage battery
If th e housing of the high-voltage battery has
been damaged, electrolyte and gases may
leak out. #
Avoid contact with the skin, eyes or
clo thing. #
Immediate lyrinse electrolyte splashes
o. with water and seek medical atten-
tion straight away. &
D
D AN
AN GER
GER Risk of /re and explosion from
ex cessive internal pressure of the high-
vo ltage battery
In theeve nt of a vehicle /re, 0ammable gas
can escape and ignite. #
Stop thech arging process immediately
in case of unusual odours, smoke or
burn mar ks. #
Leavethe danger zone immediatel y.
Secure the danger zone at a su1cient
distance. #
Call the /re service. Obser
vethefo llowing no tes on vehicle noise
emissions and the acoustic vehicle warning sys-
te m:
R The vehicle is equipped with a purely elect ric
drive system and de velops considerably lo wer
ve hicle noise emissions than vehicles with a
combustion engine.
It is forth is reason that theve hicle is equip-
ped with a sound generator, which ser ves as
an acoustic vehicle warning system (A VAS).
R The sound generator generates speed-depend-
ent vehicle noise emissions when driving
fo rw ard or backing up at a speed of up to
around 30 km/h.
This helps other road users, particular ly
pedest rians and cyclists, tohear your vehicle
better. R
When driving at speeds abo ve20 km/h The
ve hicle acoustic warning system gradually
switches o..
R Despi tethe sound generator, theve hicle still
may not be heard by otherroad users. Adapt
yo ur driving style accordingl y.
R The sound generator is o. when theve hicle is
stationar y. Manual disconnection of t Manual disconnection of t
he high-v
he high-volt
oltag
age on-
e on-
boar
boar d electr
d electr ical syst
ical syst em
em &
D
D AN
AN GER
GER Risk of dea thand /re due to
modi/ed and/or damaged components of
th e high-voltage on-board electrical sys-
tem
The vehicle's high- voltage on-board electrical
system is under high voltage. If you modify
component parts in theve hicle's high- voltage
on-board electrical system or touch damaged
component parts, you may be electrocuted. In
addition, modi/ed and/or damaged compo-
nents may cause a /re. Driving and parking
151 151

In
theeve nt of an accident or impact tothe
ve hicle underbod y,components of the high-
vo ltage electrical system may be damaged
although the damage is not visible. #
Never make any modi/cations tothe
high- voltage on-board electrical system. #
Do not switch on or use theve hicle if its
high- voltage on-board electrical system
components ha vebeen modi/ed or dam-
aged. #
Neverto uch damaged components of
th e high-voltage on-board electrical sys-
te m. #
ATer an accident, do not touch any com-
ponents of the high-voltage on-board
electrical system. #
ATer an accident, ha vetheve hicle trans-
por tedawa y. #
Have the components of the high-voltage
on-board electrical system checked at a
qu ali/ed specialist workshop and
re placed if necessar y. R
R
eq
eq uir
uir ements:
ements:
Only disconnect the high-voltage on-board electri-
cal system manually in thefo llowing situations:
R The 6 restraint system warning lamp lights
up in the Instrument Displa y,e.g. aTer an
accident.
R The vehicle is badly damaged, e.g. aTer an
accident, and there straint system co mpo-
nents ha venot been triggered.
Oper
Oper ating t
ating t he high-v
he high-v olt
oltag
age disconnect de
e disconnect de vice
vice
Only disconnect the high-voltage on-board electri-
cal system manually in the abo ve-mentioned sit-
uations. #
Switch o. theve hicle. #
ShiT the transmission toposition j. #
Apply the electric parking brake. #
Secure theve hicle against rolling away. #
Open the bonnet. #
Press release tab1 inthe direction of the
ar ro w and pull it out. #
Pull high- voltage disconnect device 2inthe
direction of the ar row until it engages.
The high- voltage on-board electrical system is
switched o..
All workon the drive system (including aTer dis-
connecting the high-voltage on-board electrical 152
152
Driving and parking

#
Remo vekey1 from theke yring. #
Place key1 in mar ked space 2on symbol
3.
The vehicle will start aTer a short time.
When youre mo vekey1 from mar ked space
2, theve hicle can still be driven. For fur ther
engine starts ho wever,key1 must be loca-
te d in mar ked space 2on symbol 3during
th e entire journe y. #
Have key1 checked at a quali/ed specialist
wo rkshop.
If t If t he v
he v ehicle does no
ehicle does no t st
t start:
art: #
Place key1 in mar ked space 2and lea veit
th ere. #
Depress the brake pedal and start theve hicle
using the start/s top button.
% You can switch on the po wer supply or the
ve hicle with the start/s top button.
Obser veany information rega rding display mes-
sages that may be displ ayed on the multifunction
displa y. R
R
unning-in not
unning-in not es
es R
In cer tain driving and driving saf ety sy stems,
th e sensors adjust automatically while a cer-
ta in distance is being driven aTer theve hicle
has been deli vered or aTer repairs. Full sys-
te m e.ectiveness is not reached until the end
of this teach-in process.
R Brakepads, brake disks and tyres that are
either new or ha vebeen replaced only achie ve
optimum braking e.ect and grip aTer se veral
hund red kilometres of driving. Compensate for
th ere duced braking e.ect byapplying greater
fo rc eto the brake pedal. N
No
ot
tes on dr
es on dr iving
iving &
W
WARNING
ARNING Risk of accident due toobjects
in the driver's foot we ll
Objects in the driver's foot we ll may impede
pedal tr avel or block a depressed pedal.
This jeopardises the operating and road saf ety
of theve hicle. #
Stow all objects in theve hicle securely
so that they cann otget into the driver's
fo ot we ll. #
Always /t the 0oor mats securely and as
prescribed in order toensure that there
is alw ays su1cient room forth e pedals. #
Do not use loose 0oor mats and do not
place 0oor mats on top of one ano ther. &
W WARNING
ARNING Risk of accident due toincor-
re ct foot we ar
Incor rect foot we ar includes, forex ample:
R shoes with plat form soles
R shoes with high heels
R slippers
There is a risk of an accident. #
Alwayswe ar suitable foot we ar so that
yo u can operate the pedals safel y. Driving and parking
155
155

The inner segment will not light up and
the outer
segment will em pty when thefo llowing driving
style is adop ted:
R 1 Sporty acceleration
R 2 Heavy braking
R 3 Fluctuations in speed
The ECO display will show you when you ha ve
driven economicall y:
R The thre e outer segments are comple tely /lled
simul taneous ly.
R The ECO display lights up.
The additional range achie ved as a result of your
driving style in comparison with a driver with a
ve ry sporty driving st yle is shown under Bonus
from start. The range displa yed does not indicate
a /xed reduction in consum ption. R R
ecuper
ecuper ativ
ative br
e br ak
ake syst
e syst em
em F
F
unction of t
unction of t he r
he recuper
ecuper ativ
ative br
e br ak
ake syst
e syst em
em
Depending on the selected recuperation le vel,the
electric mo tors are operated as an alternator
when in overrun mode and during braking in order to
charge the high-voltage battery while driving.
As soon as youta ke your foot o. the accelerator
pedal when theve hicle is in motion and in trans-
mission position h,recuperation in overrun
mode is initiated.
The higher there cuperation, the more sharply the
ve hicle is braked when coasting and the more
electrical energy is fed into the high-voltage bat-
te ry.
The recuperative brake system has thefo llowing
ch aracteristics:
R supports braking with elect ronically cont rolled
brake forc e boosting
R con verts th e kinetic energy of theve hicle into
elect ric energy
% Ifyo u brake hard, the mechanical brake is
also used. This means that the maximum
re cuperative energy cannot be reco vered. The
more you drive and brake in an anticipatory
manner, the more e1cient lyenergy can be
re cuperated. Syst
Syst em limits em limits
The braking e.ect of the electric mo tor during
re cuperation in overrun mode may be reduced or
may not be available at all in thefo llowing situa-
tions:
R when the high-voltage battery charge level
increases
R ifth e high-voltage battery is not yet at a nor-
mal operating temp erature
In these cases, the desired deceleration is set by
th e brake control system.
Manuall
Manuall y se
y setting r
tting r ecuper
ecuper ativ
ative deceler
e deceler ation
ation
Yo u can use the steering wheel gearshiT paddles
to manually adjust the intensity of recuperation in
ove rrun mode. 158
158
Driving and parking

The
following recuperation le vels are available:
R hà Intelligent and anticipa tory recupera-
tion with ECO Assist (/ page 159)
R hq Norecuperation: theve hicle coasts,
ro lls freely
R h Normal recuperation (standard setting)
R h± Increased recuperation: increased
decele ration in overrun mode
R h±± Maximum recuperation: maximum
decele ration in overrun mode #
T
To incr
o incr ease r
ease r ecuper
ecuper ation:
ation:brie0y pull gearshiT
paddle 1. #
T
To r
o r educe r
educe r ecuper
ecuperation:
ation:brie0y pull gearshiT
paddle 2. EC
EC
O Assis
O Assis t function
t function %
The following function is not available in all
countries.
ECO Assist is active only in hÃ
(/ page 158).
ECO Assist anal yses data forth eve hicle's expec-
te dro ute. This allo ws the system tooptimally
adjust the driving style forth ero ute ahead, use
minimal energy and recuperate.
ECO Assist is displa yed on theAssistance
menu(/ page 252). 1
Event ahead, e.g. roundabout
2 Distance display forth eev ent ahead
3 "Foot o. the accelerator" prom pt Displa
yable pr evious events 1 Driving and parking
159
159

The
following events 1can be de tected and dis-
pla yedfo rth ero ute section ahead:
R Vehicle in front
R Speed limit
R Downhill and uphill gradients
R Junctions and roundabouts
R Bends
The segments of dis tance display 2show the
distance totheeve nt ahead as follo ws:
R Afew segments light up: theeve nt ahead is
near.
R Many segments light up: theev ent ahead is
fur ther awa y.
If ECO Assist is acti ve, "Foot o. the accelerator"
symbol 3will appear on theAssistance menu
on the inst rument displa y,on the head-up display
and next tothe transmission position displa y.
When theve hicle nears an event, ECO Assist will
calculate the optimal speed for minimal energy
consum ption based on the distance and speed.
"Foot o. the accelerator" recommendation 3will
appear on the inst rument displa y. If
yo uta ke your foot o. the accelerator pedal in
good time, there maining segments on the display
will successively turn green until theev ent shown
is reached. The driv etra in will be set for minimal
energy consum ption. The vehicle will recuperate
autonomously and thus charge the high-voltage
batter y.
% You can also manually increase or reduce
re cuperation. Ho wever, ECO Assist is availa-
ble only in thehà setting (/ page 158).
If th ere is no response to"Foot o. the accelera-
to r" recommendation 3,the segments will
re main white.
The event will be shown for a short time aTer it
has been passed.
If th eev ent in volves a vehicle in front, the symbol
will be shown in green as soon as there is a
re sponse to"Foot o. the accelerator" prom pt3 .
If th e system does not inter vene during theev ent
ahead, no thing will be displa yed. The system will
be passive. Syst
Syst em limits em limits
ECO Assist can function even more precisely if
th ero ute is adhered towhen route guidance is
active. The basic function is also available without
active route guidance. Not all information and
tra1c situations can be fore seen. The quality
depends on theav ailable map data.
ECO Assist is only an aid. The driver is responsible
fo rke eping a safe distance from theve hicle in
front, forve hicle speed and for braking in good
time. You must be ready tobrake at all times ir re-
specti veof whe ther the system is active.
The system may be impaired or may not function
in thefo llowing situations:
R If visibility is poor, e.g. due toinsu1cient illu-
mination of thero ad, highly variable shade
conditions, rain, sno w,fog or heavy spr ay.
R Ifth ere is glare, e.g. from oncoming tra1c,
direct sunlight or re0ections.
R Ifth ere is dirt on the windscreen in the area of
th e multifunction camera or the camera is
misted up, damaged or obscured. 160 160
Driving and parking

R
The /rst point of resis tance on the haptic
accelerator pedal indicates an e1cient, eco-
nomical driving style.
R When theElectric Intelligence route option is
switched on and route guidance is active, a
ch equered 0ag on the speedome ter will indi-
cate the maximum permissible speed recom-
mended byactive range moni toring. It is the
driver's ownre sponsibility tocomply with
th em in order toreach the next scheduled
ch arging station.
Í
Í (MaxR (MaxR ang
ang e)
e)
R Maximum range and consum ption optimisa-
tion
R Particular lye1cient overrun mode and maxi-
mum e1cient recuperation in hÃ
R Firs t point of resis tance on the haptic acceler-
ator pedal:
- Automatically limits the speed tothe maxi-
mum permissible speed de tected byTra1c
Sign Assist
- Additionally limits the speed tothe maxi-
mum permissible speed recommended by active
range moni toring when theElectric
Intelligence route option is on and route
guidance is active in order toreach the
next scheduled charging station.
% IfTra1c Sign Assist does not de tect a maxi-
mum permissible speed and range moni toring
is inactive, the last speci/ed maximum per-
missible speed will be used as the limit speed.
The maximum limit speed set bythe /r stpoint
of resis tance is 140 km/h.
The limit speed set bythe /rst point of resis tance
will be sh own on the speedome ter. The segments
between the cur rently driven speed and the limit
speed will light up in green. For e1ciency rea-
sons, small deviations between the cur rently
driven speed and the limit speed are permitted.
If yo u depress the accelerator pedal be yond the
/r st point of resis tance, the limit speed will be
deactivated. The green segments on the speed-
ome ter will not be shown. When the accelerator
pedal is before the /r stpoint of resis tance again,
th e limit speed will be reactivated, thus making
sure that the maximum permissible speed is main-
ta ined again. If a
vehicle in front is de tected, the speed will be
re duced in order tofollow theve hicle in front at
an adjusted dis tance.
If th eve hicle de tects road and tra1c conditions
th at requ ire deceleration, theve hicle will no lon-
ge r be propelled and will coast. Tocause theve hi-
cle todecelerate, release the accelerator pedal.
How much theve hicle will decelerate automati-
cally when the accelerator pedal is released
depends on the set recuperation le vel
( / page 158). In hÃ, deceleration will be
automatic where there are vehicles in front, tra1c
signs, roundabouts and bends. In all other recu-
peration le vels, a permanently de/ned overrun
to rque will be set. If the situation calls for it, you
must also depress the brake pedal rega rdless of
th e selected recuperation le vel.
If yo u activate Active Distance Assist DISTRONIC
or cruise control in drive prog ram Í, the limit
speed will be deactivated bythe /rst point of
re sis tance. If you deactivate the function again,
th e limit speed set bythe point of resis tance will
be switched on again. 162
162
Driving and parking

Eng
Eng
aging neutr
aging neutr al N
al N #
Depress the brake pedal and push the DIRECT
SELECT le ver up or down tothe /rst point of
re sis tance, holding it there until the transmis-
sion position iis shown on the driver's dis-
pla y.
Subse quently releasing the brake pedal will allow
yo uto mo vetheve hicle freel y,e.g. topush it or
to w it away.
If y
If y ou w
ou w ant t
ant the tr
he tr ansmission t
ansmission t o r
o remain in neutr
emain in neutr al
al
N ev
N even if t
en if t he v
he vehicle is switc
ehicle is switc hed
hedo.:
o.: #
Start theve hicle. #
Depress the brake pedal and engage neutral
i. #
Release the brake pedal. #
Switch o. theve hicle.
% Ifyo uth en exitth eve hicle leaving theke y in
th eve hicle, the transmission will remain in
neut rali.
Eng
Eng aging par
aging par k position P
k position P #
Obser vethe no tes on parking theve hicle
(/ page 185). #
Depress the brake pedal until theve hicle
comes toa standstill. #
When theve hicle is at a standstill, press but-
to nj.
Pa rk position is only engaged when the trans-
mission position display jis shown in the
driver's displa y.If no transmission position dis-
play jappears, secure theve hicle toprev ent
it from rolling away.
Pa rk position jis engaged automatically if one
of thefo llowing conditions is met:
R You switch theve hicle o. in transmission posi-
tion hork.
R You open the driver's door when theve hicle is
at a standstill or when driving at a very low
speed and the transmission is in position h
or k.
% Tomanoeuv rewith an open driver's door,
open the driver's door while at a standstill and
engage transmission position hork again.
% Ifyo u ha veengaged park position jor
switched o. theve hicle and no transmission position displ
ayis displa yed, secure theve hi-
cle from rolling away (/ page 190).
Eng
Eng aging dr
aging dr iv
ive position D
e position D #
Dep ress the brake pedal and push the DIRECT
SELECT le ver down past the /r stpoint of
re sis tance. F
F
unction of t
unction of t he 4MA
he 4MATIC
TIC
The 0exible all-wheel distribution of the 4MATIC
means the drive is alw ays ideal lydist ributed
between bo thaxles. Depending on the situation,
only the front axle or only there ar axle can be
driven, or the drive can be distributed continu-
ously between bo thaxles.
This means that recuperation can be used even
more e.ectively and thera nge of theve hicle can
be increased (/ page 158).
To get her with ESP ®
and 4ETS, 4MATIC impr oves
th e traction of your vehicle whene ver a driven
wheel spins due toinsu1cient traction.
If yo ufa ilto adapt your driving style, 4MATIC can
neither reduce therisk of an accident nor override
th e la wsof ph ysics. It cannot take into account 166
166
Driving and parking

%
When using a CCS (Combined Charging Sys-
te m) charging cable tocharge with direct cur-
re nt at a combo vehicle soc ket, bo thvehicle
soc ket connections 1and 2are used for
ch arging.
Charging options forth e high-voltage battery
(mode 2, 3 or 4):
R Charging through recuperation while theve hi-
cle is in motion
R Charging with alternating cur rent when sta-
tiona ry:
- at a mains soc ket (mode 2)
- at a wallbox or charging station (mode 3)
R Charging with direct cur rent when stationar y:
- at a rapid charging station (mode 4)
Depending on the count ry-speci/c vehicle equip-
ment and your vehicle's charging cable, single
phase ACcharging is also possible.
Obser vethe di.erent grid requ irements of your
cur rent location when charging. Only use charging
cables which conform tothegr id requ irements.
Consult a quali/ed elect rician or your local grid
operator if you ha veany questions. It is
recommended that youch arge the high-volt-
age battery at a wallbox or charging station due to
th e impr ovedch arging per form ance and better
ch arging e1ciency o.ered.
S
S t
to
o wing t
wing t he c
he char
harging cable
ging cable
Alw ays st owtheve hicle charging cable in the
ch arging cable bag pr ovided and secure it in the
boot or load compartment of your vehicle.
Otherwise, thech arging cable is not su1ciently
secured.
Syst
Syst em limits em limits
The po wer output of the high-voltage battery may
be impaired bythefo llowing:
R High or low outside temp eratures
R Electrical auxiliary consumers in theve hicle
being switched on, e.g. operating the air con-
ditioning system
R Extended periods without charging
The charging time of the high-voltage battery may
be increased bythefo llowing:
R High or low outside temp eratures
R Extended periods without charging R
The maximum available charge cur rent of the
ch arging facility
R The settings of thech arging process in the
multimedia system (/ page 184) N
No
ot
tes on c
es on c har
harging t
ging t he high-v
he high-v olt
oltag
age batt
e batt er
ery at t
y at t he
he
mains soc ke
mains soc ket (mode 2)
t (mode 2) &
D
DAN
AN GER
GER Risk of fatal injury from incor-
re ctly ins talled component parts
Connecting thech arging cable toa mains
soc ket using incor rectly ins talled component
parts could cause a /re or an electric shoc k,
fo rex ample. #
Only connect thech arging cable to a
mains soc ketth at:
R Has been proper lyinstalled and
R Has been inspected byaqu ali/ed elect ri-
cian #
For saf etyre asons, only use thech arging
cable supplied with theve hicle or an
original Mercedes-Benz charging cable. Driving and parking
169
169