ECU MERCEDES-BENZ E-CLASS COUPE 2021 Manual PDF

Displa
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es Possible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions &
W
WARNING
ARNING Risk of injury or death when using a child restraint system while the front passenger airbag is ena-
bled
If yo u secure a child in a child restraint system on the front passenger seat and the front passenger airbag is ena-
bled, the front passenger airbag can deploy in theev ent of an accident.
The child could be struck bythe airbag. #
Ensure, bo thbefore and during the journe y,that the status of the front passenger airbag is cor rect.
NEVER use a rear wa rdfacing child restraint on a seat pro tected byan ACTIVE AIRBAG in front of it, DEATH or
SERIOUS INJURY tothe CHILD can occur. #
Stop theve hicle immediately in accordance with the tra1c conditions. #
Make sure that no objects are trapped under the front passenger seat. #
Check the status of automatic front passenger airbag actuation (/ page 50).#
If necessar y,consult a quali/ed specialist workshop immediatel y.
PRE-SAFE inoperative See
Owner's Manual *
The PRE‑SAFE ®
functions are malfunctioning. #
Consult a quali/ed specialis two rkshop. 374 374
Displ
aymessages and warning/indicator lamps

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&
inoperative Battery low *T
he on-board elect rical system voltage is too lo w.
The stationa ryheater has switched itself o.. #
Drive an extended distance until the battery has reached a su1cient charge leve l again.
&
inoperative Refuel vehicle *T
here is too little fuel in the fuel tank. The stationary hea ter cannot be switched on. #
Refuel theve hicle. V
V
ehicle
ehicle Displa
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d
Vehicle is operational
Switch off ignition before
exiting *Y
ou are leaving theve hicle in a ready-to-drive state. #
Get out of theve hicle, secure it against rolling away and take theke y with you. #
Ifyo u do not lea vetheve hicle, switch o. the electrical consumers, e.g. the seat heating. Otherwise, the 12‑V bat-
te ry may dischar geand starting the engine may be possible only with the help of a second battery (jump start). Display messages and
warning/indicator lamps
381 381

Displa
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ï
Check trailer hitch
lock (white display message) *T
he trailer hitch is not operational during a jou rney with a trailer. &
W WARNING
ARNING Risk of an accident if the ball neck is not loc ked
The trailer may become de tach ed. #
Stop theve hicle immediately in accordance with the tra1c conditions. Do not continue driving. #
Uncouple the trailer and secure it against rolling away. #
Initiate a new swivel mo vement and do not re-couple the trailer until thewa rning/indicator lamp goes out. #
Initiate a new swivel mo vement (/ page 241). #
When the display message disappears, couple up the trailer and drive on.
If th e display message does not disappear, the trailer hitch is malfunctioning and the ball neck is not loc ked. #
Do not couple up the trailer. Drive on without the trailer. No tethere duced ground clearance due tothe unloc ked
ball nec k. #
Consult a quali/ed specialist workshop.
*W hen theve hicle is stationary with a coupled trailer, the trailer hitch is not operational. #
Uncouple the coupled trailer and secure it against rolling away. #
If t
If t he ball nec
he ball nec k has been f
k has been f olded in:
olded in:unlockthe ball neck (/ page 241). #
Swivel the ball neck into the end position manually and let it engage. #
If t
If t he ball nec
he ball nec k has been f
k has been f olded out
olded out::unlock the ball neck (/ page 241).382
382
Display messages and
warning/indicator lamps

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Auxiliary battery malfunc-
tion (red display message) *V
Vehicles wit ehicles wit h aut
h automatic tr
omatic tr ansmission:
ansmission: The auxiliary battery forth e transmission is no longer being charge d. #
Consult a quali/ed specialist workshop. #
V
Vehicles wit
ehicles wit h aut
h automatic tr
omatic tr ansmission:
ansmission: untilthen, alw ays select park position jbefore you switch o. theve hicle. #
Before leaving theve hicle, apply the electric parking brake. Br
Br
ak
ak es
es Displa
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!
Parking brake See Owner's
Manual *T
heyellow ! indicator lamp is lit. The electric parking brake is malfunctioning.
T
T o apply o apply :
: #
Switch theve hicle o. and switch it back on #
App lythe electric parking brake manually (/ page 183).
If it is not possible toapply the electric parking brake: #
Consult a quali/ed specialist workshop. #
Where necessar y,also secure the par kedve hicle against rolling away.
*T heyellow ! indicator lamp and there d! indicator lamp are lit. The electric parking brake is malfunctioning.
T
T o r
o r elease:
elease: #
Switch theve hicle o. and switch it back on 392
392
Displ
aymessages and warning/indicator lamps

Displa
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Solutions #
Release the electric parking brake manually (/ page 183).
or #
Release the electric parking brake automatically (/ page 182).
If it is still not possible torelease the electric parking brake: #
Do not continue driving. Consult a quali/ed specialist workshop.
*T heyellow ! indicator lamp is lit and there d! indicator lamp is 0ashing. The electric parking brake is malfunc-
tioning.
The electric parking brake could not be applied or released. #
Switch theve hicle o. and switch it back on
T T o apply
o apply :
: #
Release and then apply the electric parking brake manually (/ page 183).
T
T o r
o r elease:
elease: #
Apply and then release the electric parking brake manuall y.
If it is not possible toapply the electric parking brake or there d! indicator lamp continues to0ash: #
Do not continue driving. Consult a quali/ed specialist workshop. #
Where necessar y,also secure the par kedve hicle against rolling away. Display messages and
warning/indicator lamps
393
393

Displa
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Solutions
*T heyellow ! indicator lamp is lit and there d! indicator lamp 0ashes for appr oximately ten seconds aTer the
electric parking brake has been applied or released. It then remains lit or goes out. The electric parking brake is mal-
functioning.
If t
If t he st he st at
ate of c
e of c harg
harge is t
e is t oo low
oo low :
: #
Char gethe 12 V batter y.
T
T o apply
o apply :
: #
Switch o. theve hicle.
The elect ric parking brake will be applied automatical ly.
If yo u do not wantthe electric parking brake tobe applied, e.g. at an automatic car wash or when theve hicle is being
to we d, lea vetheve hicle switched on. This does not include having theve hicle towe d with there ar axle raised.
If th e electric parking brake is not applied automaticall y: #
Switch theve hicle o. and switch it back on #
Release and then apply the electric parking brake manually (/ page 183).
If it is still not possible toapply the electric parking brake: #
Consult a quali/ed specialist workshop. #
Where necessar y,also secure the par kedve hicle against rolling away.
T
T o r
o r elease:
elease: 394
394
Display messages and
warning/indicator lamps

W
W
ar
ar ning/indicat
ning/indicat or lampP
or lam pP ossible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
ï
Tr ailer tow hitch warning
lamp *T
hered trailer hitch warning lamp is lit.
The trailer hitch is not operational. &
W
WARNING
ARNING Risk of an accident if the ball neck is not loc ked
The trailer may become de tach ed. #
Stop theve hicle immediately in accordance with the tra1c conditions. Do not continue driving. #
Uncouple the trailer and secure it against rolling away. #
Initiate a new swivel mo vement and do not re-couple the trailer until thewa rning/indicator lamp goes out. #
Notethe messages on the instrument displa y.Engine
Engine
W
W
ar
ar ning/indicat
ning/indicat or lampP
or lam pP ossible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
ÿ
Coolant warning lamp (red) *T
he red coolant warning lamp is lit while the engine is running.
Po ssible causes:
R The temp erature sensor is malfunctioning
R The coolant le vel is too low
R The air supply tothera diator is obstructed
R The radiator fan is faulty Display message
s andwarning/indicator lamps
431
431

Wi
ndo ws................................................ 312
Wi per blades.......................................... 312
Car
Car pe
pet (Car
t (Car e)
e)............................................... 314
Changing g
Changing g ears
ears
Manually................................................ 170
Changing hub caps
Changing hub caps ....................................... 347
Char
Char ging
ging
Mobile phone (wireless)........................ .123
On-board electrical system battery
(12 V).................................................... 327
USB port................................................1 23
Chassis
Chassis
Damping characteristics........................ .218
DY NAMIC BODY CONTROL................... .218
Chassis lev
Chassis lev el (AIR BOD el (AIR BOD Y C
Y CONTR
ONTR OL)
OL)
Setting................................................... 220
Child safe
Child safe ty lock
ty lock
Re ar side wind ows................................... 71
Child seat
Child seat
Appr oval catego ries.................................59
At tach ing (no tes)..................................... .58
Basic instructions.................................... 54
Fr ont passenger seat (no tes).................... 69 Fr
ont passenger seat (without auto-
matic airbag shuto.)............................... .68
ISOFIX/i-Size (/tting).............................. .62
No tes on risks and danger s...................... 55
Re commendations forch ild restraint
systems................................................... 57
Seats suitable for belt-secured child
re straint systems..................................... 66
Seats suitable for i‑Size child restraint
systems................................................... 62
Seats suitable for ISOFIX child
re straint systems..................................... 61
Securing on the co-driver seat..................70
Securing on there ar seat......................... 67
To pTe ther................................................ 64
Childr
Childr en
en
Av oiding dangers in theve hicle............... .55
Basic instructions.................................... 54
Chock Chock Storage location..................................... 346
Chock Chock see Chock
City lighting
City lighting.................................................. 130 Cleaning
Cleaning
see Care
Climat
Climat e contr
e contr ol
ol
Ac tivating/deactivating.......................... 144
Ac tivating/deactivating the A/C func-
tion (control panel).................................1 44
Ac tivating/deactivating the A/C func-
tion (MBUX multimedia system).............. 145
Ac tivating/deactivating the synchro-
nisation function (control panel).............1 45
Ac tivating/deactivating the synchro-
nisation function (MBUX multimedia
system).................................................. 146
Air-recirculation mode............................1 46
Au tomatic control................................. .145
Calling up the air conditioning menu....... 144
Climate style function............................ 145
Demisting the windscreen...................... 143
Demisting windo ws................................ 146
Fr ont air vents........................................ 152
Inserting/removing the 0acon (fra-
gr ance system)...................................... 147
Ionisatio n.............................................. .146
No te...................................................... 143
Re ar air vents......................................... 152 448 448
Ind
ex

Hazar
Hazar
d w
d w ar
arning lights
ning lights................................... 128
Head r
Head r es
estrtraint
aint
Fr ont (adjusting mechanically)................ 102
Re ar (adjusting)..................................... .103
Head space heating (AIRSC
Head space heating (AIRSC ARF)
ARF)................... 108
Head-up display
Head-up display Adjusting brightness (on-board com-
puter).................................................... 253
Ad justing display elements (on-board
co mp uter).............................................. 253
Care...................................................... 314
Fu nction................................................ 252
Menu (on-boa rdcomputer)..................... 253
Operating the memory function.............. 113
Setting the position (on-board com-
puter).................................................... 253
Switching on/o.....................................2 54
Headlam
Headlam p
p0ashing
0ashing ........................................ 128
Headlam
Headlam ps
ps
see Automatic driving lights
Heating
Heating see Climate control
Help call
Help call see Mercedes-Benz emer gency call system High beam
High beam
Activating/deactivating.......................... 128
High beam
High beam see Adaptive Highbeam Assist
see Adaptive Highbeam Assist Plus
High-pr
High-pr essur
essure cleaner (car
e cleaner (car e)
e)........................ 310
Hill St
Hill Star
art Assist
t Assist............................................ 191
HOLD function
HOLD function Function/no tes...................................... 190
Switching on/o..................................... 190
Home scr
Home scr een (media displa
een (media displa y)
y)
Overview................................................ 257
Hooking t
Hooking t he lugg
he luggag
age net
e net.............................. .120 I
I
i-Size c
i-Size c hild seat secur
hild seat secur ing syst
ing system
em
Fi tting...................................................... 62
Seats suitable for attaching...................... 62
Identi/cation
Identi/cation plate
plate
Engine................................................... 357
Ve hicle.................................................. 357
Ignition key
Ignition key
see Key Immobiliser Immobiliser
.................................................... 94
Im
Im plied w
plied w arr
arranty
anty
Ve hicle..................................................... 34
In-Car
In-Car O1ce
O1ce
Fe atures................................................ 287
Indicat
Indicat or lamp
or lamp
see Warning/indicator lamp
Individual dr
Individual dr iv
iv e pr
e pr ogr
ogram
am
Con/guring............................................ 167
Selecting............................................... 167
Inspection
Inspection see ASS YST PLUS
Ins
Instr trument clust
ument clust er
er
Fu nction/no tes.............................. 248, 249
Ins
Ins tr
trument display
ument display
Fu nction/no tes...................................... 249
Instrument clus ter.................................... 10
Overview of displa ys............................... 252
Wa rning/indicator lamps........................ 427
Ins
Instr trument displa
ument displa y and on-boar
y and on-boar d com-
d com-
put
put er
er
Fu nction/no tes...................................... 248 458
458
Index

Int
Int
ellig
ellig ent Light Syst
ent Light Syst em
em
Ac tivating/deactivating.......................... 130
Ac tive headlamps................................... 129
Ad aptive Highbeam Assis t...................... 131
Ad aptive Highbeam Assist Plu s............... 132
Bad weather light................................... 130
City lighting........................................... .130
Cornering light....................................... 129
Fo g light (enhanced).............................. 130
Mo torw ay mode.................................... .130
Overview................................................ 129
Int
Int er
er ior lighting ior lighting
Ad justing............................................... 134
Ambient lighting.................................... .135
Re ading lamp......................................... 134
Switch-o. delay time.............................. 135
Int
Int er
erior pr ot
ior pr otection
ection
Fu nction.................................................. 95
Priming/deactivating.............................. .96
Int
Int er
erne
ne t r
t radio
adio
see TuneIn
Ionisation
Ionisation Activating/deactivating (MBUX multi-
media system)....................................... 146 iPhone
iPhone
®
®
see Smartphone integ ration
ISOFIX c
ISOFIX c hild seat anc
hild seat anc hor
hor
Seats suitable for attaching...................... 61
ISOFIX c
ISOFIX c hild seat secur
hild seat secur ing syst
ing system
em
Fi tting...................................................... 62 J
J
Jack
Jack
Declaration of conformity......................... 30
Storage location.................................... .346
Jum Jum p-st
p-st ar
art connection
t connection
General no tes....................................... .325 K
K
K
K e
e y
y
Ac oustic locking veri/cation signal.......... .74
Battery..................................................... 75
Deacti vating a function............................ 74
Emer gency key......................................... 75
Energy consum ption................................ 74
Fu nction overview.................................... 73
Ke yring attachment................................. 75
Problem................................................... 76 Unlocking setting..................................... 74
KEYLESS-GO
KEYLESS-GO
Deactivating a function............................ 74
Locking/unlocking theve hicle................. 78
Problem................................................... 78
Unlocking setting.................................... .74
Kic
Kic kdo kdo wn
wn
Using..................................................... 171
Knee airbag
Knee airbag.................................................... 46 L
L
Lamp
Lamp see Interior lighting
Lam
Lam p (ins
p (instr trument displa
ument displa y)
y)
see Warning/indicator lamp
Lane det
Lane det ection (aut
ection (aut omatic)
omatic)
see Active Lane Keeping Assist
Lane K
Lane K eeping Assist
eeping Assist
see Active Lane Keeping Assist
Language
Language Notes..................................................... 269
Setting................................................... 269 Index
459
459