key MERCEDES-BENZ E-CLASS SALOON 2021 Service Manual

Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences and0050
0050Solutions
Solutions
PRE-SAFE inoperative See
Owner's Manual *
The PRE‑SAFE ®
functions are malfunctioning. #
Consult a quali/ed specialist workshop.
PRE-SAFE impulse side
inoperative See Owner's
Manual *
The PRE‑SAFE ®
Impulse Side system is malfunctioning or inoperative aTer having already been triggered. #
Consult a quali/ed specialist workshop. K K
e
ey
y Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/conseq uences and
uences and0050
0050Solutions
Solutions
Á
Replace key *H
aveth eke yre placed. #
Consult a quali/ed specialist workshop.
Á
Change key batteries *T
hekey battery is dischar ged. #
Replace the battery (/ page 80).438
438
Display messages and
warning/indicator lamps

Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences and0050
0050Solutions
Solutions
Á
Key not detected (white dis-
play message) *T
hekey is cur rently unde tected. #
Change the location of theke y in theve hicle. #
Ifth eke y is still not recognised, place it in the slot for starting with theke y (/ page 168).
Á Key not detected (red dis-
play message) *T
hekey cann otbe de tected and may no longer be in theve hicle.
The key is no lon ger in theve hicle and you switch o. theve hicle:
R You can no longer start theve hicle.
R You cannot centrally lock theve hicle. #
Ensu rethat theke y is in theve hicle.
If th eke y de tection function has a malfunction due toa st rong radio signal source: #
Stop theve hicle immediately in accordance with the tra1c conditions. #
Place theke y in the slot for starting the engine with theke y (/ page 168).
Á Key being initialised Please
wait *T
hevehicle is processing in order to teach in the new key. #
Wait until processing is comple te. Display messages and
warning/indicator lamps
439
439

Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences and0050
0050Solutions
Solutions
Place the key in the
marked space See Owner's
Manual *K
eydetection is malfunctioning. #
Change the location of theke y in theve hicle. #
Place theke y in the slot for starting the engine with theke y (/ page 168). Lights Lights
Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/conseq uences and
uences and0050
0050Solutions
Solutions
:
Left dipped beam (examp le) *T
he cor responding light source is defecti ve. #
Drive on carefull y. #
Consult a quali/ed specialist workshop immediatel y.
% LED light sources: the display message forth e cor responding light appears only when all the light-emitting diodes
in the light are faulty.
: Malfunction See Owner's
Manual *T
heexterior lighting is malfunctioning. #
Consult a quali/ed specialist workshop.
*V Vehicles wit ehicles wit h a tr
h a trailer hitc
ailer hitc h:
h:a fuse may ha veblown. #
Stop theve hicle in accordance with the tra1c conditions. #
Check the fuses and replace them if necessary (/ page 392).440
440
Display messages and
warning/indicator lamps

Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences and0050
0050Solutions
Solutions
003B
inoperative High-voltage
battery charging incom-
plete *T
he high- voltage battery is charging. Pre-ent ryclimate cont rol cannot be switched on. #
Wait until thech arging process has achie ved a minimum charge.
003B
inoperative Charge HV bat-
tery *T
hecharge ofthe high-voltage battery is too lo w.Pre-entry clima tecont rol cannot be switched on. #
Char gethe high-voltage batter y.
003B Pre-entry climate control
(via key) available again
after engine start *Y
ou ha veattem pted toswitch on pre-ent ryclimate cont rol more than twice with the engine switched o.. #
Start theve hicle forte n seconds.
Pre-entry clima tecont rol is operational again. Display message
s andwarning/indicator lamps
445 445

Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences and0050
0050Solutions
Solutions
003B
Pre-entry climate control
(via key) inoperative HV-
battery low *T
hecharge ofthe high-voltage battery is too lo w.Pre-entry clima tecont rol cannot be switched on. #
Char gethe high-voltage batter y.
When the high-voltage battery is su1ciently charge d, pre-ent ryclimate cont rol will be operational again. Hybr Hybr
id syst
id syst em
em Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/conseq uences and
uences and0050
0050Solutions
Solutions
u
Towing not permitted See
Owner's Manual *T
he drive system is malfunctioning. #
Have theve hicle transpo rted only using a transpor ter or trailer (/ page 387).446 446
Display messages and
warning/indicator lamps

BlueTEC
BlueTEC
see AdBlue ®
Bonnet
Bonnet Function (active bonnet)......................... 360
Opening/closing.................................... 360
Boo
Boo t box
t box
see EAS Y-PA CK bo otbox
Boo
Boo t lid
t lid
Closing.................................................... 87
HANDS-FREE ACCESS............................. 89
Locking separatel y................................... 91
Opening................................................... 86
Br
Br ak ak e Assis
e Assist Syst t System
em
see BAS (Brake Assist System)
Br
Br ak
ak e
e0uid
0uid
No tes..................................................... 425
Br
Br ak
ak e f
e f or
orce disce distr tribution
ibution
EBD (Elect ronic Brake forc e Distribu-
tion)....................................................... 221
Br
Br ak
ak es
es
ABS (Anti-lock Braking System).............. 218
Ac tive Brake Assist................................. 238
Ad aptive brake lights.............................. 223 BAS
(Brake Assist System).................... .218
Driving tips............................................1 72
EBD (Electronic Brake forc e Distribu-
tion)....................................................... 221
HOLD function....................................... 221
Limited braking e.ect (salt-treated
ro ads)................................................... .172
Ne w/replaced brake linings/brake
discs...................................................... 170
Ru nning-in no tes.................................... 170
Br
Br ak ak es
es
see Recuperation
Br
Br aking assist
aking assist ance
ance
see BAS (Brake Assist System)
Br
Br eakdo
eakdo wn
wn
Overvi ewofthe help functions.................18
To w- starting........................................... 392
To wing away.......................................... 388
Tr anspo rting theve hicle........................ .390
Wheel chang e........................................ 405
Br
Br eakdo
eakdo wn
wn
see Flat tyre
Butt
Butt ons
ons
St eering wheel....................................... 283 C
C
Calls
Calls Mercedes me......................................... 338
Camera
Camera Information............................................ 216
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)............................................ 367
Car
Car -t
-to-X
o-X -Communication
-Communication
Displaying hazard warnings.................... 332
Care
Care 360° camera......................................... 370
Air-water duct........................................ 367
Automatic car wash.............................. .367
Carpet................................................... 372
Decorative foil........................................ 369
Display................................................... 372 520 520
Index

Engaging park position automaticall
y...... 187
Fu nction................................................ 186
Selecting park position........................... 187
Displa
Displa y (car
y (care)
e)............................................... 372
Displa
Displa y (MBUX multimedia syst
y (MBUX multimedia syst em)
em)
Home sc reen......................................... 313
Operating.............................................. 314
Displa
Displa y (on-boar
y (on-boar d com
d comput
puter)
er)
Displa yson the inst rument displa y......... 286
Displa
Displa y in t
y in the windscr
he windscr een
een
see Head-up display
Displa
Displa y message
y message
Calling up (on-board computer).............. 433
No tes..................................................... 433
Displa
Displa y messag y messag es
es
ç - - - km/h.................................... .470
00CB - - - km/h..................................... 469
h - - - km/h..................................... 469
003D 12 V battery See Owner's Man-
ual......................................................... 486
00D7 48 V battery See Owner's Man-
ual......................................................... 488 ò
Acoustic presence indicator
inoperative............................................ .447
: Active Light System inoperative..... 441
0099 AdBlue system fault Emer. op.:
max. XXX km/h Start not poss. in
XXX km.................................................. 496
0099 AdBlue system fault Emer gency
op. in XXX miles See Owner's Manual.... 495
0099 AdBlue system fault Engine
start not possible................................... 496
0099 AdBlue system fault See Own-
er's Manual............................................ 495
00B3 Add 1 litre engine oil when next
re fuelling ............................................... 497
é ATTENTION ASSIST inoperati ve..... 468
é ATTENTION ASSIS T:Take a
break!.................................................... 468
: Automatic driving lights inoper-
ative...................................................... 441 00D7
Battery overheated Stop, every-
body out! Outdoors if possible ................ 449
Á Change key batteries .................... 438
00E5 Charger cable connected .............. 447
004D Check brake 0uid le vel.................. 467
00B3 Check eng. oil le v.when next
re fuelling ............................................... 497
ï Check trailer hitch lo ck(white
display message) .................................... 453
0077 Check tyre(s) ................................ 490
003A Clean the fuel /lter....................... 460
ÿ Coolant Stop vehicle Switch
engine o............................................... 459
0025 currently una vailable See Own-
er's Manual............................................4 81
00E5 currently una vailable See Own-
er's Manual............................................4 82
00B3 Engine oil le vel cannot be meas-
ured....................................................... 499
00B3 Engine oil le velRe duce oil le vel..... 498 524 524
Index

00B3
Engine oil le velSt op vehicle
Switch engine o.................................... 498
00B3 Engine oil pressure Stop Switch
o. engine.............................................. 499
ä Fault Drive at max. 80 km/h ......... 479
0075 Front leT malfunction Consult
wo rkshop (e xample)...............................4 35
003B inoperative Battery low................. 444
003B inoperative Char geHV battery ...... 445
003B inoperati veHigh-voltage battery
ch arging inco mplete ............................... 445
003B inoperative Refuel vehicle............. .444
003B inoperative See Owner's Man........ 444
0025 inoperative See Owner's Manual.. .482
00E5 inoperative See Owner's Manual.. .483
007A inoperative See Owner's Manual.. .484
0053 Inoperative................................... 485
: Intelligent Light System inopera-
tive........................................................ 442
Á Key being initialised Please wait.... 439 Á
Key not de tected (red display
message).............................................. .439
Á Key not de tected (white display
message).............................................. .439
: LeT dipped beam (e xample).......... 440
0075 LeT windowbag malfunction
Consult workshop (e xample).................. 436
¢ Lowe ring....................................... 480
: Malfunction See Owner's Man-
ual ......................................................... 440
00D7 Malfunction Visit workshop ........... 450
0080 Malfunction.................................. 450
00D7 Malfunction.................................. 449
ð Maximum speed exceeded ............ 471
00C8 ................................................... .494
ç O.................................................4 70
00D9 O.................................................4 68
ï Operation only possible in
transmission position P .......................... 453 0024
Parking brake See Owner's
Manual..................................................4 64
0080 Performance se verely limited........ 451
00CC Please reduce speed .................... .480
00D9 Please wait 48 V battery charg-
ing......................................................... 488
00B4 Please wait Depressurising tank .... 451
003B Pre-entry clima tecont rol (via
ke y) available again aTer engine start..... 445
003B Pre-ent ryclimate cont rol (via
ke y) inoperati veHV-battery low .............. 446
006F Rear leT seat backrest not
loc ked (Example) .................................... 457
0077 Rectify tyre pressure ..................... 491
00C8 Re/ll AdBlue See Owner ’sMan-
ual ......................................................... 494
0024 Release parking brake ...................466
009E Replace air cleaner ....................... 460
Á Replace key.................................. 438
00B6 Reser vefuel le vel.......................... 460 Index
525 525

Limiter inoperative................................
.469
Limiter passive....................................... 469
Mo tor can be star ted again .................... 489
N permanently active Risk of vehicle
ro lling....................................................4 62
Not possible tounlock charging cable
See Owner's Manual.............................. 447
Only elect ric drive available Power
limited................................................... 448
Only select Park (P) when vehicle is
stationary.............................................. 460
Pa rking Assist and PARKTRONIC inop-
erative See Owner's Manual................... 481
Place theke y in the mar ked space
See Owner's Manual.............................. 440
PRE-SAFE impulse side inoperative
See Owner's Manual.............................. 438
PRE-SAFE inoperative See Owner's
Manual.................................................. 438
Re duce speed........................................ 492 Re
duced drive system per form ance
See Owner's Manual.............................. 448
Re versing not poss. Consult workshop ... 462
Risk of vehicle rolling Driver door
open and transmission not in P .............. 461
Ru n Flat Indica tor inoperative................. 493
Speed limit (winter tyres) XXX km/h .......471
St op vehicle Lea veengine running
Wa itTransmission cooling ......................463
To shiT out of P or N,depress brake
and start engine.................................... .461
To switch o. the engine, press the
St art/ Stop button for at least 3 sec-
onds or 3 times...................................... 458
Tr a1c Sign Assist cur rently una vaila-
ble See Owner's Manual........................ 474
Tr a1c Sign Assist inoperative................. 474
Tr ansmission Malfunction Stop............... 462
Ty re press. monitor cur rently una vaila-
ble......................................................... 489 Ty
re press. monitor inoperative .............. 489
Ty re press. monitor inoperative No
wheel sensors ........................................ 490
Ty re pressure Check tyres ...................... 493
Ty re(s) ove rheated .................................. 492
Ve hicle not cur rently being charged
Charging station fault............................. 447
Wi per malfunctioning .............................457
Wi thout changing gear, consult work-
shop ............................................. .450, 462
Wi thout starting engine again, consult
wo rkshop ............................................... 450
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................................. 81
Child saf ety lock (rear door )..................... 75
Locking/unlocking (emer gency key)........ .85
Opening (from inside).............................. .82
Po we r closing function............................. 85 528
528
Index

Operating (DYNAMIC SELECT switch)..... 184
Selecting
the drive prog ram.................. .184 E E
E10
E10.............................................................. 418
Easy entr
Easy entr y f
y feature
eature
Fu nction/no tes...................................... 115
Setting................................................... 116
Easy e
Easy e xit f
xit featu re
eature
Fu nction/no tes...................................... 115
Setting................................................... 116
EASY
EASY -PAC
-P AC K boo
K boo t box
t box
Ad justing the height toany position........ 125
Care..................................................... .372
Installing/removing................................ 126
EBD (Electr
EBD (Electr onic Br
onic Brak
ake f
e f or
orce Dis
ce Distr tribution)
ibution)
Fu nction/no tes...................................... 221
EC
EC O Assist
O Assist
Fu nction/no tes.............................. 177, 180
EC
EC O display
O display
Fu nction................................................ 176
EC
EC O st
O st ar
ar t/st
t/st op function
op function
Switching o./on.................................... 176 Electr
Electr ic dr
ic drive
ive................................................ 164
Electr
Electr ic par
ic parking br
king br ake
ake
Applying automaticall y........................... 213
Applying/releasing manually.................. 214
Emer gency braking................................ 214
Re leasing automaticall y.......................... 213
Electr
Electr ical fuses
ical fuses
see Fuses
Electr
Electr omagne
omagne tic com
tic compatibility
patibility
Declaration of conformity........................ .28
Electr
Electr onicSt
onic Stability Pr
ability Pr ogr
ogram
am
see ESP ®
(Elect ronic Stability Prog ram)
Emerg
Emerg ency
ency
Fire extinguisher.................................... 375
Fi rs t-aid kit (soT sided).......................... 375
Overview of the help functions.................18
Re moving thewa rning triangle............... 374
Saf etyve st............................................. 374
Setting up thewa rning triangle............... 375
Emerg
Emerg ency br
ency br aking
aking...................................... 214
Emerg
Emerg ency br
ency br aking
aking
see BAS (Brake Assist System) Emerg
Emerg
ency call
ency call
see Me rcedes-Benz emer gency call system
Eme rg
Emerg encykey
ency key
Inserting/ removing.................................. 80
Locking/unlocking the doors................... 85
Emerg
Emerg ency oper
ency oper ation mode
ation mode
St arting theve hicle............................... .168
Emerg
Emerg ency
encyshut
shuto.
o.
see Hybrid system
Emerg
Emerg ency spar
ency spar e wheel
e wheel
No tes..................................................... 410
Ener
Ener gy
gy0ow
0ow display
display
Displayin g.............................................. 326
Fu nction/no tes...................................... 327
Engine
Engine
Engine number....................................... 415
St arting (emer gency ope ration mode ).... 168
St arting (Remo teOnline)........................ 169
Engine data
Engine data Displaying.............................................. 185
Engine electr
Engine electr onics
onics
No tes..................................................... 412
Engine number
Engine number ............................................. 415530
530
Index