service MERCEDES-BENZ E-CLASS COUPE 2020 Repair Manual

Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
R The coolant le vel is too low
R The air supply tothera diator is obstructed
R The radiator fan is faulty
If th ere is an additional warning tone, the coolant temp erature has exceeded 120 °C. &
WARNING Danger of bu rns when opening the bonn et
If yo u open the engine bonn etwhen the engine has overheated or during a fire inthe engine compartment, you
could come into contact wi thhot gases or other escaping operating fluids. #
Before opening the bonn et, allow the engine tocool down. #
Intheeve nt of a fire inthe engine compartment, keep the engine bonn etclosed and call thefire service. #
Stop theve hicle immediately in accordance with the traf fic conditions and switch off the engine. Do not continue
driving. #
Notethe messages on the multifunction displa y.
If th e coolant temp erature display is at the lo wer end of thete mp erature scale: #
Consult a qualified specialist workshop.
or #
Exit theve hicle and keep a safe dis tance from it until the engine has cooled down. #
Check the coolant le vel (/ page 300). Display messages and
warning/indicator lamps 423

Ac
tive Se rvice Sy stem PLUS
see AS SYST PLUS
Ac tive Speed Limit Assi st....................... 201
Display ................................................. 201
Fu nction .............................................. 201
Ac tive Steering Assist ............................ .203
Ac tivating/deactivating ...................... .205
Ac tive Emergency Stop Assist .............2 05
Fu nction .............................................. 203
Sy stem limits ....................................... 203
Ac tive Traf fic Jam Assist
Ac tivating/deactivating ...................... .206
Fu nction .............................................. 206
Ad aptive brake lights ..............................19 3
Ad aptive cruise control
see Active Dis tance Assi stDISTRONIC
Ad aptive Highbeam Assist
Fu nction .............................................. 12 8
Switching on/off ................................. 12 9
Ad aptive Highbeam Assist Plus
Fu nction .............................................. 12 9
Switching on/off ................................. 131Ad
Blue ®
.................................................... 356
Ad ditives .............................................3 56
Capacity .............................................. 357
No tes ................................................... 173
Purity ................................................... 356
To pping up ...........................................1 74
Ad ditional door lo ck.................................. 73
Ad diti ves.................................................. 357
Ad Blue ®
............................................... 356
Engine oil ............................................. 357
Fu el ..................................................... 354
Ad diti ves (AdBlue ®
)
see AdBlue ®
Ad diti ves (engine oil)
see Additives
Ad diti ves (fuel)
see Fuel
ADS PLUS damping sy stem
see AIR BODY CONTROL
Ad versewe ather light ............................ .128
Af ter-sales service centre
see ASS YST PLUS AIR
BODY CONT ROL................................ 208
Setting ................................................ .209
Suspension .......................................... 208
Air conditioning menu Calling up ............................................ 14 2
Air distribution Setting ................................................ .141
Setting (MBUX multimedia sy stem) ..... 14 3
Air freshener sy stem
see Frag rance sy stem
Air inlet see Air-water duct
Air pressure see Tyre pressure
Air suspension see AIR BODY CONTROL
Air vents ................................................... 14 9
Ad justing (front) .................................. 14 9
Ad justing (rear) .................................... 15 0
Ad justing the AIRSCARF vents ............. 15 0
Air vents
see Air vents 434
Index

Air-conditioning sy
stem
see Climate control
Air-recirculation mode ............................14 4
Air-water duct .......................................... 302
Ke eping free ........................................3 02
Airbag ........................................................ .42
Ac tivation .............................................. 36
Fr ont airbag (driver, front passenger) ....42
Ins tallation locations ............................ .42
Knee airbag ........................................... 42
Overview ............................................... 42
PA SSENGER AIR BAG indicator lamp .... .47
Pr otection ..............................................43
Re duced pr otection ...............................44
Side airbag ............................................ 42
Wi ndow airbag ....................................... 42
Ai rflow
Setting ................................................ .141
AIRS CARF
Ad justing the outlets ........................... 15 0
Switching on/off ................................. 105
Alarm sy stem
see ATA (anti-theft alarm sy stem) All-wheel drive
see 4MATIC
Ambient lighting Setting (multimedia sy stem) ................1 32
Android Auto
see Smartphone integration
Animals Pets in theve hicle ................................. 69
Anti-lock braking sy stem
see ABS (Anti-lock Braking Sy stem)
Anti-skid chains
see Snow chains
Anti-theft pr otection
Ad ditional door lock .............................. 73
Immobiliser ............................................ 91
Anticipatory occupant pr otection
see PRE- SAFE®
(anticipatory occu‐
pant pr otection)
see PRE-SAFE ®
PLUS (anticipatory
occupant pr otection plus)
Apple CarPlay ®
see Smartphone integration Assistance sy
stems
see Driving saf ety sy stem
ASS YST PLUS ........................................... 295
Battery disconnection pe riods .............2 96
Displ aying the service due date ........... 295
Fu nction/no tes ................................... 295
Re gular maintenance work .................. 295
Special service requ irements .............. 295
ATA (anti-theft ala rmsystem) .................. .91
Deactivating the alarm .......................... 92
Fu nction ................................................ 91
Fu nction of interior pr otection ............... 93
Priming/deactivating interior pr otec‐
tion ........................................................ 93
Priming/deactivating tow- aw ay pro‐
te ction ................................................... 93
To w- aw ay protection function ................92
AT TENTION ASSI ST......................... 22 7, 228
Fu nction .............................................. 227
Setting ................................................. 228
Sy stem limitations ...............................2 27
At tention assistant
see ATTENTION ASSIST Index
435

Data acquisition
Vehicle ................................................... 31
Data storage
Electronic control units .......................... 31
Online services ...................................... 33
Ve hicle ................................................... 31
Deactivating the ala rm(ATA ).................... 92
Dealership see Qualified specialist workshop
Declaration of conformity Electromagnetic compatibility ............... 24
Jack ...................................................... .27
TIREFIT kit ............................................. 28
Wi reless vehicle components ................24
Decorative foil (cleaning instructions)
.................................................................. .304
DeNO x agent
see AdBlue ®
De stination entry .................................... 267
En tering a POI or address .................... 267
De tecting inat tentiveness
see ATTENTION ASSIST
Diagnostics connection ............................28Diesel
Low outside temp eratures ...................3 54
No tes ................................................... 354
Digital Owner's Manual .............................18
Digital Vehicle Keyst icker
Locking theve hicle ................................ 75
St arting theve hicle ............................. 154
Un locking theve hicle ............................75
Dinghy towing
see Tow- bar sy stem
Dipped beam Setting .................................................1 31
DIRECT SELECT le ver............................... 16 6
Engaging drive position ....................... 16 8
Engaging neutral .................................. 167
Engaging pa rkposition ........................ 16 8
Engaging pa rkposition automatically .. 16 8
Engaging reve rsege ar ........................ .167
Fu nction .............................................. 16 6
Display (care) .......................................... .307
Display (MBUX multimedia sy stem)
Home screen ...................................... .253 Display (multimedia sy
stem) ................ .254
Operating ............................................ 254
Display (on-board computer) Displa yson the multifunction display .. 24 8
Display message .................................... .365
Calling up (on-boa rdcompu ter) .......... .365
No tes .................................................. 365
Display messages ¯ - - - km/h ................................... 389
ç - - - km/h ................................... 390
È - - - km/h ................................... 389
# 12V battery See Owner's Man‐
ual ....................................................... 406
Û 48 V battery See Owner's Man‐
ual ....................................................... 407
: Active Light Sy stem inopera‐
tive ...................................................... 372
¯ AdBlue sy stem fault Emer. op.:
max. XXX km/h Start not poss. in
XXX km ................................................ 41 5440
Index

Cruise cont
rol and Limiter inope ra‐
tive ...................................................... 389
Cruise control inope rative ................... 389
Cruise control off ................................ 389
Fr ont-passenger airbag disabled See
Owner's Manual ..................................3 67
Fr ont-passenger airbag enabled See
Owner's Manual ..................................3 67
Haza rdwa rning lamps malfunction‐
ing ...................................................... .373
Limiter inoperative .............................. 390
Limiter passive .................................... 389
Mercedes me connect Services limi‐
te d See Owner's Manual .....................405
Mo tor can be star ted again .................4 08
N permanently active Risk of vehicle
ro lling .................................................. 383
Only select Park (P) when vehicle is
st ationary ............................................ 381 Place
theke y in the mar ked space
See Owner's Manual ...........................370
PRE-SAFE inope rative See Owner's
Manual ................................................ 368
Re duce speed ...................................... 412
Re versing not poss. Consult work‐
shop ....................................................3 83
Risk of vehicle rolling Driver door
open and transmission not in P ...........382
Ru n Flat Indicator inope rative .............. 413
Speed limit (winter tyres) XXX km/h ... 391
St op vehicle Lea veengine running
Wa itTransmission cooling ...................384
To shift out of P or N,depress brake
and start engine .................................. 382
To switch off the engine, press the
St art/ Stop button for at least 3 sec‐
onds or 3 times. .................................. 379
Tr af fic Sign Assi stcur rently una vaila‐
ble See Owner's Manual ...................... 396 Tr
af fic Sign Assi stinope rative ............. 396
Tr ansmission Malfunction Stop ........... 383
Ty re press. monitor cur rently una vail‐
able .................................................... .409
Ty re press. monitor inoperative ...........409
Ty re press. monitor inoperative No
wheel sensors .................................... .409
Ty re pressure Check tyres ....................412
Ty re(s) ove rheated ................................ 411
Wi thout changing gear, consult work‐
shop ....................................................3 83
Display on the windscreen
see Head-up display
Distance control see Active Dis tance Assi stDISTRONIC
DI STRO NIC
see Active Dis tance Assi stDISTRONIC
Door Additional door lock .............................. 73
Locking (emergency key) ...................... .77
Opening (from the inside) ......................74
Po we r closing function ......................... .77444
Index

Switching mo
torw ay information
on/off ................................................ .269
Massage prog rammes
Overview .............................................. 101
Re setting the settings .......................... 102
Massage prog rams
Selecting the front seats ..................... 102
Massage settings Resetting ............................................. 102
Matt finish (cleaning instructions) ........ 304
Maximum gross vehicle weight ............ .349
Maximum speed see Limi ter
MBUX Interior Assistant Switching there ading light forthe
driver and front passenger on/off
con tact-free ......................................... 258
Switching the sear chlight forthe
driver on/off .......................................2 58
MBUX Interior Assistant (multimedia
sy stem) .................................................... .257
Overview ............................................. 257 MBUX multimedia sy
stem ...................... 251
Ac tivating/deactivating standby
mode .................................................. .183
Configu ring drive program I ................. 16 5
No tes ................................................... 251
Overview ..............................................2 51
Setting route-based speed adap ta‐
tion ...................................................... 203
St andby mode function ...................... .182
Media Overview of the functions and sym‐
bols ..................................................... 287
Media mode Connecting Blue tooth®
audio equip‐
ment .................................................... 289
Medical aids .............................................. .30
Memory function Function .............................................. 109
Head-up display — Calling up stored
settings ................................................ 11 0
Head-up display — Storing settings ...... 11 0
Operating ............................................. 11 0
Outside mir rors — Calling up stored
settings ................................................ 11 0Outside mir
rors —St oring settings .......1 10
Seat — Calling up stored settings ......... 11 0
Seat — Storing settings ........................ 11 0
St eering wheel — Calling up sa ved
settings ................................................ 11 0
St eering wheel — Saving settings ......... 11 0
Menu (on-board computer) Head-up display ................................... 24 9
Overview ............................................. 24 6
Mercedes me app Information .......................................... 280
Mercedes me calls Arranging a service appointment ......... 278
Calling the Mercedes-Benz Cus tomer
Centre ................................................. 277
Calling the Mercedes-Benz Cus tomer
Centre af ter auto matic accident or
breakdown de tection ........................... 277
Consenting todata transfer .................2 78
Information ..........................................2 77
Making a call via theov erhead con‐
trol panel ............................................. 276
Tr ans ferred data ..................................2 79452
Index

Mercedes me connect
Accident and Breakdown Manage‐
ment .................................................... 275
Information .......................................... 274
Tr ans ferred data ..................................2 76
Mercedes-AMG vehicles
No tes ................................................... 15 2
Mercedes-Benz emer gency call sys‐
te m ........................................................... 283
Au tomatic emergency call ................... 284
Information .......................................... 283
Information on data transfer ............... 285
Manual emer gency call ........................ 285
Overview ............................................. 283
Self-diagnosis (Russia) ........................ 286
St arting/ending ERA-GLONASS test
mode .................................................. .286
Mercedes-Benz Link see Smartphone integration
Mercedes-Benz service centre see Qualified specialist workshop
Message (multifunction display) see Display message
Message memory .................................... 365 Mir
rors
see Outside mir rors
Mobile phone Frequencies ......................................... 348
Tr ansmission output (maximum) ........ .348
Wi reless charging ................................ 121
Mobile phone see Smartphone integration
see Telephone
Model series see Vehicle identification plate
MOExtended tyres ................................... 311
Mo torw ay mode ....................................... 127
MULTIBEAM LED ...................................... 12 6
Multifunction display Overview of the displa ys...................... 24 8
Multifunction steering wheel
Overview of buttons ............................ 24 6
Multifunction steering wheel
see Steering wheel
Multimedia sy stem
Collision de tection (pa rked vehicle) ..... 181Multimedia sy
stem
see Display (multimedia sy stem)
see MBUX Interior Assis tant (multi‐
media sy stem)
see MBUX multimedia sy stem
see Touchpad N
Na vigation
No tes ................................................... 264
Overview ............................................. 266
Showing/hiding the menu ...................2 65
Switching on ....................................... 265
Na vigation
see Destination entry
see Map
see Route
Ne arField Communication (NFC)
Locking theve hicle (Digital Vehicle
Ke yst icke r) ............................................ 75
St arting theve hicle (Digital Vehicle
Ke yst icke r) .......................................... 154
Un locking theve hicle (Digital Vehicle
Ke yst icke r) ............................................ 75 Index
453

Ne
utral
Engaging .............................................. 167
Note s........................................................ 157
Optimised acceleration ........................ 157O
Occupant saf ety
see Airbag
see Automatic front passenger front
airbag shutoff
see Pets in theve hicle
see PRE-SAFE ®
(anticipatory occu‐
pant pr otection)
see PRE-SAFE ®
PLUS (anticipatory
occupant pr otection plus)
see Restra int sy stem
see Seat belt
Oil see Engine oil
On-board computer ................................. 24 6
Displ aying the service due date ........... 295
Head-up display menu .........................2 49
Multifunction display ........................... 24 8
Operating ............................................ 24 6Overview of menus ..............................
24 6
On-board diagnostics inter face
see Diagno stics connection
On-boa rdelectronics
Engine electronics .............................. .347
No tes ................................................... 347
Tw o-w ayradios .................................... 347
Online services Data storage .......................................... 33
Online services see In-Car Of fice
Open-source so ftwa re .............................. 34
Opening the bo otlid using your foot
HANDS-FREE ACCESS .......................... .81
Operating fluids
Ad Blue ®
............................................... 356
Ad ditives (fuel) .................................... 354
Brake fluid .......................................... .359
Coolant (engine) .................................. 359
Engine oil ............................................. 357
Fu el (diesel) ......................................... 354
Fu el (petrol) ......................................... 353
No tes ................................................... 351 Wi
ndsc reen washer fluid .................... .360
Operating saf ety
48 V on-boa rdelectrical sy stem ............ 22
Declaration of confo rmity (elect ro‐
magnetic compatibility) ......................... 24
Declaration of conformity (ja ck) ............ 27
Declaration of conformity (TIREFIT kit) .. 28
Declaration of conformity (wireless
ve hicle components) ............................. 24
EQ Boo st............................................... 22
Information ............................................ 22
Ope rating sy stem
see On-board computer
Optimised acceleration ...........................157
Ac tivating ............................................ .157
Outside mir rors ............................... 137, 13 8
Anti-dazzle mode (automatic) .............. 13 8
Au tomatic mir rorfo lding function ........ 13 9
Fo lding in/out .................................... .137
Operating the memory function ........... 11 0
Pa rking position .................................. .138
Setting ................................................. 137
Overhead control panel Overview ................................................ 12454
Index

Fo
lding the backrest forw ards/back
(with memory function) ...................... .102
Fo lding the backrest forw ards/back‐
wa rds (without memory function) ........ 103
Massage programme overview ............ 101
Operating the memory function ........... 11 0
Pa nel heating ....................................... 105
Re setting the settings .......................... 102
Setting options ...................................... 14
Switching AIRSCARF on/off ................ 105
Wo rkout programme overview ............ .101
Seat belt ............................................... 37,41
Ac tivating/deactivating seat belt
adjustment ............................................ 41
Care .................................................... 307
Fa stening ............................................... 40
Pr otection ..............................................37
Re ar seat belt status display .................. 41
Re duced pr otection ...............................38
Re leasing .............................................. .41
Seat belt adjustment (function) ............. 41
Seat belt extender ................................. 39
Wa rning lamp ........................................ .41
Seat belt adjustment Activating/deactivating ......................... 41Fu
nction ................................................. 41
Seat belt extender .....................................39
Seat belt tensioners
Ac tivation .............................................. 36
Seat belt warning
see Seat belt
Seat co ver (Care) ..................................... 307
Seat hea ter
Ac tivating/deactivating ...................... .103
Seat ventilation
Switching on/o ff................................. 105
Selecting a gear
see Changing gears
Selector le ver
see DIRECT SELECT le ver
Self-test Automatic front passenger front air‐
bag shutoff ............................................ 47
Sensors (care) ......................................... 305
Service see ASS YST PLUS Service centre
see Qualified specialist workshop
Service inter val display
see AS SYST PLUS
Setting a speed see Cruise control
Setting the map scale
see Map
Shift paddles see Steering wheel gearshift paddles
Shifting gears
Gea rshift recommendation .................. 16 9
Side airbag .................................................42
Side windo ws............................................. 83
Au tomatic function ................................ 84
Child saf ety lock in there ar .................. .68
Closing .................................................. 83
Closing using theke y ............................ 85
Con venience closing ............................. 85
Co nvenience opening ............................85
Opening .................................................83
Opening with theke y ............................ .85
Problem .................................................86 458
Index