sensor MERCEDES-BENZ E-CLASS COUPE 2021 Service Manual

W
W
ar
ar ning/indicat
ning/indicat or lampP
or lam pP ossible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions #
Make sure that the air supply tothera diator is not obstructed. #
Avoiding high loads on the engine, drive tothe nearest quali/ed specialist workshop. In doing so, ensu rethat the
coolant temp erature display remains below 120°C.
ÿ
Coolant warning lamp (yel-
low) *T
he yellow coolant warning lamp is lit while the engine is running.
Po ssible causes:
R The temp erature sensor is malfunctioning
R The charge air, transmission oil or battery cooling is faulty
R The radiator shutters are bloc ked or defective #
Avoiding high loads on the engine, drive tothe nearest quali/ed specialist workshop.
; Engine diagnosis warning
lamp *T
he yellow engine diagnostics warning lamp is lit while the engine is running.
A malfunction has occur red in the engine, theex haust system or the fuel system.
The emissions limit value may ha vebeen exceeded and the engine may be running in eme rgency operation mode. #
Have theve hicle checked as soon as possible at a quali/ed specialist workshop.
V
V ehicles wit
ehicles wit h a diesel engine:
h a diesel engine: the fuel tank may ha vebeen run dr y. #
Start the engine thre eto four times aTer refuelling.
If th eye llow engine diagnosis warning lamp goes out, emer gency ope ration mode is cancelled. The vehicle need not
be checked. Display messages and
warning/indicator lamps
433
433

Dr
Dr
iving syst
iving syst ems
ems W
W
ar
ar ning/indicat
ning/indicat or lampP
or lam pP ossible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
L
Wa rning lamp for distance
wa rning function *T
he red distance warning lamp lights up while theve hicle is in motion.
The dis tance totheve hicle in front is too small forth e speed selected.
If th ere is an additional warning tone, you are approaching an obstacle at too high a speed. #
Be prepared tobrake immediatel y. #
Increase the distance.
Fu nction of Active Brake Assist (/ page 207).
Ó Ac tive Brake Assist warning
lamp *T
heActive Brake Assist warning lamp is on.
Due todirty sensors or a malfunction, the system is not available or thera nge of functions is restric ted. #
Notethe messages on the instrument displa y.
ê
Ac tive Brake Assist warning
lamp *T
heActive Brake Assist warning lamp is on.
The system is switched o. or thera nge of functions has been automatically restric ted.
This may be the case if the driver is not wearing a seat belt or ano ther driving system has been activated. #
Obser vethe no tes on Active Brake Assist (/ page 207). Display messages and
warning/indicator lamps
437
437

Br
Br
ak
ak e
e 0uid
0uid
No tes..................................................... 366
Br
Br ak
ak e f
e f or
orce disce distr tribution
ibution
EBD (Elect ronic Brake forc e Distribu-
tion).......................................................1 89
Br
Br ak
ak es
es
ABS (Anti-lock Braking System).............. 187
Ac tive Brake Assist................................. 207
Ad aptive brake lights.............................. 191
BAS (Brake Assist System).................... .187
Driving tips............................................ 159
EBD (Electronic Brake forc e Distribu-
tion).......................................................1 89
HOLD function....................................... 190
Limited braking e.ect (salt-treated
ro ads)................................................... .159
Ne w/replaced brake linings/brake
discs...................................................... 157
Ru nning-in no tes.................................... 157
Br
Br aking assist aking assist ance
ance
see BAS (Brake Assist System)
Br
Br eakdo
eakdo wn
wn
Overvi ewofthe help functions................. 16
To w- starting........................................... 333 To
wing away.......................................... 329
Tr anspo rting theve hicle........................ .331
Wheel chang e........................................ 347
Br
Br ea kdo
eakdo wn
wn
see Flat tyre
Butt
Butt ons
ons
St eering wheel....................................... 250 C
C
Calls
Calls Mercedes me......................................... 281
Camera
Camera Information............................................ 185
Camera
Camera see 360° Camera
see Dashcam
see Reversing camera
Car key
Car key
see Key
Car w Car w ash
ash
see Care
Car w
Car w ash (car
ash (car e)
e)............................................ 309 Car
Car
-t
-to-X
o-X -Communication
-Communication
Displaying hazard warnings.................... 275
Care
Care 360° camera......................................... 312
Air-water duct........................................ 309
Automatic car wash.............................. .309
Carpet................................................... 314
Decorative foil........................................ 311
Display................................................... 314
Exterior lighting...................................... 312
Head-up display..................................... 314
High-pressure cleaner............................3 10
Pa int...................................................... 311
Plastic trim............................................3 14
Re alwo od/trim elements..................... .314
Re versing camera..................................3 12
Ro of lining............................................. 314
Seat belt................................................ 314
Seat co ver............................................. 314
Sensors.................................................3 12
St eering wheel....................................... 314
Ta ilpipes................................................ 312
Tr ailer hitch........................................... .312
Wa shing byhand.................................... 311
Wheels/rims.......................................... 312 Index
447 447

Ø
Re/ll AdBlue See Owner ’sMan-
ual ......................................................... 422
! Release parking brake ...................395
¸ Replace air cleaner ....................... 389
Á Replace key.................................. 375
8 Reser vefuel le vel.......................... 388
6 Restraint sys. malfunction Con-
sult workshop ....................................... .372
# See Owner's Manual..................... 414
Ù Steering malfunction Increased
ph ysical e.ort See Owner's Manual....... 383
Ù Steering malfunction Stop
immediately See Owner's Manual ........... 384
# Stop vehicle Lea veengine run-
ning ....................................................... 415
# Stop vehicle See Owner's Man-
ual......................................................... 415
É Stop vehicle Vehicle too low .......... 407
ç suspended .................................... 398
: Switch o. lights............................ 378 :
Switch on headlamps .................... 378
á temp orarily una vailable Camera
view restric ted....................................... 406
¸ temp orarily una vailable Sensors
dirty....................................................... 405
Ø Top up AdBlue Emer gency op. in
XXX miles See Owner's Manual.............. 422
+ Top up coolant See Owner ’s
Manual.................................................. 387
¥ Top up washer 0uid...................... .386
! Turn on the ignition torelease
th e parking brake ................................... 395
d Vehicle is operational Switch o.
ignition before exiting............................. 381
É Vehicle rising Please wait.............. 408
É Vehicle rising ................................ 408
h Warning tyre defect....................... 419
h Wheel sensor(s) missing ................ 418Ø
XX,X l Top up AdBlue Swit chon
ignition, wait 60 sec. or eng. start not
poss...................................................... 423
Ac tive Blind Spot Assist cur rently
una vailable See Owner's Manual ............ 403
Ac tive Blind Spot Assist inoperative........ 404
Ac tive Blind Spot Assist not available
when towing a trailer See Owner's
Manual.................................................. 404
Ac tive bonnet malfunction See Own-
er's Manual............................................ 384
Ac tive Brake Assist Functions cur-
re ntly limi ted See Owner's Manual .........412
Ac tive Brake Assist Functions limited
See Owner's Manual.............................. 413
Ac tive Distance Assist available again ..... 400
Ac tive Distance Assist cur rently
una vailable See Owner's Manual ............ 399
Ac tive Distance Assist inoperative.......... 399 452 452
Index

Pa
rking Assist and PARKTRONIC inop-
erative See Owner's Manual................... 409
Place theke y in the mar ked space
See Owner's Manual.............................. 376
PRE-SAFE inoperative See Owner's
Manual.................................................. 374
Re duce speed........................................ 420
Re versing not poss. Consult workshop ... 391
Risk of vehicle rolling Driver door
open and transmission not in P .............. 390
Ru n Flat Indica tor inoperative................. 421
Speed limit (winter tyres) XXX km/h .......400
St op vehicle Lea veengine running
Wa itTransmission cooling ......................391
To shiT out of P or N,depress brake
and start engine.................................... .389
To switch o. the engine, press the
St art/ Stop button for at least 3 sec-
onds or 3 times...................................... 386 Tr
a1c Sign Assist cur rently una vaila-
ble See Owner's Manual........................ 402
Tr a1c Sign Assist inoperative................. 402
Tr ansmission Malfunction Stop............... 391
Ty re press. monitor cur rently una vaila-
ble......................................................... 417
Ty re press. monitor inoperative .............. 417
Ty re press. monitor inoperative No
wheel sensors ........................................ 418
Ty re pressure Check tyres ...................... 420
Ty re(s) ove rheated .................................. 420
Wi per malfunctioning .............................386
Wi thout changing gear, consult work-
shop ...................................................... 390
Dist
Dist ance contr ance contr ol
ol
see Active Distance Assist DISTRONIC
DIS DIS TR TRONIC
ONIC
see Active Distance Assist DISTRONIC
Door
Door Additional door loc k................................. 76
Locking/unlocking (emer gency key)........ .80 Opening (from inside)..............................
.77
Po we r closing function............................. 79
Unlocking (from inside)............................ 77
Door contr
Door contr ol panel
ol panel......................................... 14
Dra
Dra wbar
wbar
see Tow- bar system
Dr
Dr iv
ive Awa
e Away Assi st
y Assi st........................................ .237
Dr
Dr iv
ive position
e position
Engaging................................................ 170
Dr
Dr iv
ive pr
e pr ogr
ogr am display
am display .................................. 167
Dr
Dr iv
ive pr
e pr ogr
ograms
ams
see DYNAMIC SELECT
Dr
Dr iv
iver's seat
er's seat
see Seat
Dr
Dr iving abr
iving abr oad
oad
Light adjustment (l owbeam).................. 126
Dr
Dr iving safe
iving safe ty syst
ty system
em
ABS (Anti-lock Braking System)............. .187
Ac tive Brake Assist................................. 207
Ad aptive brake lights.............................. 191
BAS (Brake Assist System).................... .187
Cameras................................................1 85454
454
Index

EBD (Electronic Brake
forc e Distribu-
tion).......................................................1 89
ESP ®
Crosswind Assist.......................... 188
ESP ®
trailer stabilisation........................ 189
Overview................................................ 186
Ra dar and ultrasonic sensor s................. 185
Re sponsibility......................................... 184
ST EER CONTROL................................... 189
Dr
Dr iving syst iving syst em
em
DY NAMIC BODY CONTROL.................... 218
Dr
Dr iving syst
iving syst em
em
see 360° Camera
see Active Blind Spot Assist
see Active Distance Assist DISTRONIC
see Active Emer gency Stop Assist
see Active Lane Keeping Assist
see Active Parking Assist
see Active Speed Limit Assist
see Active Steering Assist
see AIR BODY CONTROL
see ATTENTION ASSIST
see Blind Spot Assist
see Cruise cont rol
see Driving saf ety sy stem
see HOLD function see Limi
ter
see Parking Assist PARKTRONIC
see Reversing camera
see Tra1c Sign Assist
Dr
Dr iving tips iving tips
Driving abroad (low beam light adjust-
ment)..................................................... 126
Gene ral driving tips................................1 59
optimised acceleration........................... 158
Ru nning-in no tes.................................... 157
Dr ow
Dr ow siness det siness det ection
ection
see ATTENTION ASSIST
D
D YN
YNAMIC BOD AMIC BOD Y C
Y CONTR
ONTR OL
OL
Chassis.................................................. 218
Dynamic handling contr
Dynamic handling contr ol syst
ol system
em
see ESP ®
(Electronic Stability Prog ram)
D
D YN
YNAMIC SELECT AMIC SELECT
Calling up the fuel consum ption indi-
cator...................................................... 168
Con/guring drive prog ram I................... .167
Displaying engine data........................... 167
Displaying vehicle dat a........................... 167
Drive prog ram displa y............................ 167
Drive prog rams..................................... .166 Fu
nction................................................ 166
Ope rating (DYNAMIC SELECT switch)..... 167
Selecting the drive prog ram.................. .167 E E
E10
E10.............................................................. 360
Easy entr Easy entr y f
y feature
eature
Fu nction/no tes...................................... 111
Setting.................................................. .112
Easy e
Easy e xit f
xit feature
eature
Fu nction/no tes...................................... 111
Setting.................................................. .112
EBD (Electr
EBD (Electronic Br onic Brak
ake f
e f or
orce Dis
ce Distr tribution)
ibution)
Fu nction/no tes...................................... 189
EC
EC O Assist
O Assist
Fu nction/no tes...................................... 164
EC
EC O displ ay
O display
Fu nction................................................ 164
EC
EC O st
O st ar
art/st
t/st op function
op function
Switching o./on.................................... 163
Electr
Electr ic par
ic parking br
king br ake
ake
Applying automaticall y........................... 181
Applying/releasing manuall y.................. 183 Index
455
455

Flacon
Flacon
Inserting/re moving................................ 147
Flat to
Flat towing
wing
see Tow- bar system
Flat tyre
Flat tyre MOExtended tyres................................. 318
No tes..................................................... 318
TIREFIT kit.............................................. 320
Wheel chang e........................................ 347
Floor mats
Floor mats................................................... 125
F
F og light (enhanced) og light (enhanced) .................................... .130
F
F oil cov
oil cov er
ering
ing
Ra dar and ultrasonic sensor s................. 185
Fr
Fr agr
agr ance
ance
see Frag rance system
Fr
Fr agr
agr ance syst
ance syst em
em
Inserting/ removing the 0acon................1 47
Setting................................................... 146
Fr
Fr ee
ee soTw
soTw are
are................................................. 38
Fr
Fr eq
eq uencies
uencies
Mobile phone......................................... 355
Tw o-w ayradio........................................ 355
Fr
Fr ont airbag (dr
ont airbag (dr iv
iv er
er , fr
, fr ont passeng
ont passeng er)
er).............. 46 F
F
r
ront passeng
ont passeng er seat
er seat
see Seat
F
F uel
uel
Additives................................................ 361
Diesel.................................................... 362
E10........................................................ 360
Fu elreser ve........................................... 363
Low outside temp eratures...................... 362
Pe trol..................................................... 360
Quality (diesel )....................................... 362
Quality (petrol)....................................... 360
Re fuellin g.............................................. .172
Sulphur content..................................... 360
Ta nk content.......................................... 363
F
F uel consump uel consump tion indicat
tion indicator
or
Calling up.............................................. 168
F
F unction seat
unction seat
see Door cont rol panel
F
F uses
uses
Before replacing a fuse.......................... 333
Fu se assignment diag ram. ...................... 333
Fu se box in the boo t............................... 336
Fu se box in the engine compartment......3 34Fu
se box in the front passenger foot-
we ll........................................................ 335
Fu se box on the dashboar d.................... 335
No tes..................................................... 333 G
G
Gar
Gar ag
age door opener
e door opener
Clea ring the memory.............................. 181
Gar
Gar ag
age door openers
e door openers
Opening/closing the door......................1 81
Prog ramming buttons............................. 179
Re solving problems................................ 180
Syn chronising thero lling code................ 180
Gear
Gear shiT
shiT r
recommendation
ecommendation........................... 171
Genuine par
Genuine par ts
ts................................................ 21
Glide mode
Glide mode.................................................. 171
Gr Gr oss mass
oss mass.................................................. 357 H
H
Handbr Handbr ake
ake
see Electric parking brake
Handling c Handling c har
haract
acter
eris
istics (unusual)tics (unusual) ................ 337
HANDS-FREE A HANDS-FREE A CCESS
CCESS................................... 84 Index
457
457

Displaying street names and house
numbers................................................ 273
R
R out
out e-based speed adapt
e-based speed adapt ation
ation
Fu nction................................................ 202
Setting.................................................. .203
R
R un-0at
un-0at c
c har
har act
acter
eristics
istics
MOExtended tyres................................. 318
R
R unning-in not
unning-in not es
es.......................................... 157 S
S
Safe
Safe ty syst
ty syst ems
ems
see Driving saf ety sy stem
Sa fe
Safe ty v
ty vest
est.................................................. .316
Searc
Searc h light
h light
Switching on/o. (contactless). .............. 263
Seat
Seat
4-waylumbar suppor t............................ 101
adjusting (electrically)............................ 101
Ad justing (manual lyand elect rically)
........................................................ 98, 100
Au tomatic adjustment........................... .104
Con/guring settings............................... 103
Cor rect driver's seat position.................. .97Fo
lding back the backrest (rear)............. 118
Fo lding the backrest forw ards (rear)...... .117
Fo lding the backrest forw ards/back
(with memory function ).......................... 105
Fo lding the backrest forw ards/bac k-
wa rds (without memory function )........... 106
Locking the backrest (rear).................... 118
Massage prog ramme overvie w............... 105
Operating the memory function.............. 113
Pa nel heating......................................... 108
Re setting the settings............................ 105
Setting options......................................... 14
Switching AIRSCARF on/o.................... 108
Wo rkout prog ramme overvie w................ 105
Seat belt
Seat belt
Activating/deactivating seat belt
adjustment.............................................. 45
Care...................................................... 314
Fa stening................................................. 44
Pro tection................................................ 41
Re ar seat belt status displ ay..................... 45
Re duced pr otection.................................. 42
Re leasing................................................. 45
Seat belt adjustment (function)................ 45
Seat belt extender.................................... 44 Wa
rning lamp........................................... 45
Seat belt adjus
Seat belt adjustment tment
Ac tivating/deactivating............................ 45
Fu nction.................................................. 45
Seat belt e Seat belt e xt
xtender
ender.......................................... 44
Seat belt t
Seat belt t ensioners
ensioners
Ac tivation................................................ 40
Seat belt w
Seat belt w ar
arning
ning
see Seat belt
Seat cov
Seat cov er (Car
er (Care)
e)......................................... 314
Seat heating
Seat heating Activating/deactivating.......................... 106
Seat v
Seat v entilation
entilation
Switching on/o..................................... 108
Selecting a g
Selecting a g ear
ear
see Changing gears
Select
Select or lev
or lever
er
see DIRECT SELECT le ver
Self-t
Self-t est
est
Au tomatic front passenger airbag shut
o............................................................. 50
Sensor
Sensor s (car
s (care)
e)............................................. 312 Index
467
467

REA
CHregulation.................................... 33
Re gistration............................................. 33
St andby mode function.......................... 184
St arting (emer gency ope ration mode ).... 156
St arting (Remo teOnline)........................ 157
St arting (start/stop but ton)................... 155
SV HC (substances of very high conce rn)..33
Switching o. (start/stop button)............ 178
Switching on (start/stop button)............ 154
To wing................................................... 247
Ve ntilating (con venience opening)........... .88
V
V ehicle batt ehicle batt ery
ery
see On-board electrical system battery (12 V)
V
V ehicle camera
ehicle camera
Information............................................ 185
V
V ehicle data
ehicle data
Displaying (DYNAMIC SELECT)............... 167
Ro of load............................................... 369
Ve hicle height....................................... .368
Ve hicle length........................................ 368
Ve hicle widt h......................................... 368
Wheelbase............................................. 368
V
V ehicle dimensions
ehicle dimensions...................................... 368
V
V ehicle emerg
ehicle emerg ency st
ency start
art............................... 333 V
V
ehicle
ehicle identi/cation
identi/cation number
number
see VIN
V
V ehicle
ehicle identi/cation
identi/cation plate
plate
EU type appro val number....................... 357
Maximum gross vehicle weight............... 357
Pa int code............................................. 357
Pe rm issible axle load.............................. 357
VIN........................................................3 57
V
V ehicle int
ehicle int er
erior
ior
Cooling or heating (Remo teOnline)....... .156
V
V ehicle key
ehicle key
see Key
V
V ehicle maint
ehicle maint enance
enance
see ASS YST PLUS
V
V ehicle sensors
ehicle sensors
Information............................................ 185
V
V ehicle t
ehicle t ool kit
ool kit
TIREFIT kit............................................. .319
To wing eye............................................. 332
V
V entilating
entilating
Con venience opening.............................. .88
V
V entilation
entilation
see Climate control V
V
ents
ents
see Air vents
VIN
VIN Identi/cation pla te................................. 357
Seat....................................................... 357
Wi ndsc reen............................................ 357
V V ision
ision
Demisting windo ws................................ 146 W
W
W
W ar
ar ning lamp
ning lamp
see Warning/indicator lamp
W
W ar
ar ning syst
ning syst em
em
see ATA (anti-theT alarm system)
W
W ar
ar ning tr
ning tr iangle
iangle
Re moving............................................... 316
Setting up.............................................. 317
W
W ar
ar ning/indicat
ning/indicat or lamp
or lamp
! ABSwarning lamp......................... 438
Ó Active Brake Assist warning lam p..4 37
J Brake system warning lamp (red)... 436 Index
473
473