2020 MERCEDES-BENZ E-CLASS SALOON trailer

Display messages
Possible causes/consequences and M
MSolutions
5 Engine oil level cannot be
measured *T
he electrical connection tothe oil le vel sensor has been inter rupte d or the oil le vel sensor is faulty. #
Consult a qualified specialist workshop. Wa
rning and indicator lamps Overview of indicator and
warning lamps Some sy
stems will per form a self-test when the
ignition is switched on. Some indicator and
wa rning lamps may briefly light up or flash. This
behaviour is non-critical. These indicator and
wa rning lamps indicate a malfunction only if they
light up or flash af terth e engine has been star‐
te d or during a journe y. Instrument display Depending on
the display setting, the positions
of the indicator lamps on the instrument display
may dif fer from theex ample shown. Indicator and
warning lamps:
6 Re
stra int sy stem (/ page 426)
ü Seat belt (/
page 426)
ï Trailer hit ch (/page 427)
Ù Powe rst eering (/ page 427)
ÿ Coolanttemp erature (/ page 428)
; Engine diagnostics (/
page 428)
% Preglow
# Elect
rical fault (/ page 428)
8 Re
ser vefuel with fuel filler flap loca‐
tion indicator (/ page 428)
! Elect
ric pa rking brake (red)
(/ page 431) 424
Display messages and warning/indicator lamps

Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
ü Seat belt warning lamp
lights up The
red seat belt warning lamp lights up once the engine has star ted.
In addition, an intermittent warning tone may sound.
*T he red seat belt warning lamp reminds the driver and front passenger tofast entheir seat belts. #
Fasten your seat belt (/ page 39).
If yo u ha veplaced objects on the front passenger seat, there d seat belt warning lamp may remain lit. Ve
hicle Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
ï Tr ailer tow hit chwarning
lamp The
red trailer hitch warning lamp is lit.
*The trailer hitch is not operational or is swivelling. &
WARNING 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 traf fic 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 multifunction displa y. Displ
aymessa ges and warning/indicator lamps 427

Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
If th e trailer hitch is swivelling: #
Wait until the ball neck has reached the operational position.
Ù
Po we rst eering warning
lamp (red) The
red po werst eering sy stem warning lamp is lit while the engine is running.
*The po wer assi stance or thesteering itself is malfunctioning. &
WARNING Risk of accident if steering capability is impaired
If th esteering does not function as intended, theve hicle's operating saf ety is jeopardised. #
Pull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions. Do
not continue driving under any circums tances. #
Consult a qualified specialist workshop. #
Notethe messages on the multifunction displa y.Engine
Wa
rning/indicator lamp
Possible causes/consequences and M MSolutions
ÿ Coolant warning lamp The
red coolant warning lamp is lit while the engine is running.
*Possible causes: R The temp erature sensor is malfunctioning 428
Display messages and warning/indicator lamps

¯
AdBlue sy stem fault Emer. op.:
max. XXX km/h Start not poss. in
XXX km .............................................. .420
¯ AdBlue sy stem fault Emer‐
ge ncy op. in XXX miles See Owner's
Manual ................................................ 420
¯ AdBlue sy stem fault Engine
st art not possible ................................ .421
¯ AdBlue sy stem fault See Own‐
er's Manual ........................................ .420
5 Add 1 litre engine oil when
next refuelling .................................... .422
é ATTENTION ASSIST inoperative .. 401
é ATTENTION ASSIS T:Take a
break! .................................................. 401
: Automatic driving lights inoper‐
ative ..................................................... 375
Á Changekey bat teries .................. 373
J Check brake fluid le vel.............. .393 #
Checkbrake pads See Owner's
Manual ................................................ 393
5 Check eng. oil le v.when next
re fuelling ............................................. 421
ï Checktrailer hitch lo ck.............. 380
h Check tyre(s) .............................. 41 5
! Clean the fuel filter .................... .386
ÿ Coolant Stop vehicle Switch
engine off ............................................ 385
_ Currently una vailable Camera
view restricted ..................................... 405
ç Currently unavailable Radar
sensors dirty .......................................4 04
! currently una vailable See Own‐
er's Manual ........................................ .406
÷ currently una vailable See Own‐
er's Manual ........................................ .407
5 Engine oil le vel cannot be
measured ............................................ 424 5
Engine oil le velRe duce oil le vel
............................................................. 422
5 Engine oil le velSt op vehicle
Switch engine off ................................ 422
5 Engine oil pressure Stop
Switch off engine ................................ 423
ä Fault Drive at max. 80 km/h ...... 398
6 Front left malfunction Consult
wo rkshop (e xample)............................ 370
& inoperative Battery low ...............378
& inoperative Refuel vehicle ........... 378
& inoperative See Owner's Man. ....378
! inoperative See Owner's Man‐
ual ....................................................... 407
÷ inoperative See Owner's Man‐
ual ....................................................... 408
T inoperative See Owner's Man‐
ual ....................................................... 409
G Inoperati ve.................................. 41 0 Index
447

:
Intellige nt Light Sy stem inoper‐
ative ..................................................... 376
Á Key not de tected (red displ ay
messa ge).............................................3 74
Á Key not de tected (white displ ay
messa ge).............................................3 74
: Left dipped beam (e xamp le) ...... .375
6 Left windowbag malfunction
Consult workshop (e xample).............. .370
¢ Lowe ring .................................... 399
: Malfunction See Owner's Man‐
ual ....................................................... 375
ð Maximum speed exceeded ......... 396
Ø ................................................... 419
ç Off..............................................3 95
ë Off.............................................. 398
ï Operation only possible in
transmission position P .......................379
! Parking brake See Owner's
Manual ................................................ 389 É
Please reduce speed .................. 400
Ý Please wait 48 V battery charg‐
ing ........................................................ 413
_ Rear left seat backrest not
loc ked (Example) .................................3 83
h Rectify tyre pressure ...................41 5
Ø Refill Ad Blue See Owne r’s
Manual .................................................4 18
! Release parking brake ................ 392
¸ Replace air cleaner .....................386
À Replace key See Owner's Man‐
ual ...................................................... .373
Á Replace key ................................ 373
8 Reser vefuel le vel...................... .386
6 Restra int sys. malfunction Con‐
sult workshop ...................................... 370
# See Owner's Manual ...................411
Ù Steering malfunction Incre ased
ph ysical ef fort See Owner's Manual .... 381Ù
Steering malfunction Stop
immediately See Owner's Manual .......382
# Stop vehicle Lea veengine run‐
ning ...................................................... 412
# Stop vehicle See Owner's Man‐
ual ........................................................ 412
É Stop vehicle Vehicle too low .......3 99
ç suspended ................................. 395
: Switch off lights .......................... 376
: Switch on headlamps .................376
Ø Top up AdBlue Emergency op.
in XXX miles See Owner's Manual .......419
+ Top up coolant See Owner ’s
Manual ................................................ 384
¥ Top up washer fluid .................... 384
ï Trailer coupling extending… ........379
! Turn on the ignition torelease
th e parking brake ................................ 393
d Vehicle is operational Switch
off ignition before exiting .................... 379448
Index

É
Vehicle rising Please wait.......... .400
É Vehicle rising .............................. 400
h Warning tyre defect ....................416
h Wheel sensor(s) missing .............414
Ø XX,X l Top up AdBlue Switch on
ignition, wait 60 sec. or eng. start
not poss. .............................................. 419
Ac tive Blind Spot Assi stcur rently
una vailable See Owner's Manual .........402
Ac tive Blind Spot Assi stinope rative .... 403
Ac tive Blind Spot Assi stnot available
when towing a trailer See Owner's
Manual ................................................ 403
Ac tive bonnet malfunction See Own‐
er's Manual ......................................... 382
Ac tive Brake Assi stFunctions cur‐
re ntly limited See Owner's Manual ...... 409
Ac tive Brake Assi stFunctions limited
See Owner's Manual ............................41 0Ac
tive Dis tance Assi stavailable
again .................................................. .396
Ac tive Dis tance Assi stcur rently
una vailable See Owner's Manual .........395
Ac tive Dis tance Assi stinope rative ...... 396
Ac tive Lane Keeping Assist cur rently
una vailable See Owner's Manual .........403
Ac tive Lane Keeping Assist inopera‐
tive ...................................................... 403
Ac tive Parking Assist and
PA RKTRONIC inoperati veSee Own‐
er's Manual ......................................... 400
Ac tive Steering Assist cur rently
una vailable due tomultiple emer‐
ge ncy stops ......................................... 397
Ac tive Steering Assist cur rently
una vailable See Owner's Manual .........396
Ac tive Steering Assist inoperative .......397
Ac tive Stop-and-Go Assist cur rently
una vailable see Owner's Manual .........397 Ac
tive Stop-and-Go Assist inopera‐
tive See Owner's Manual ..................... 398
Ad aptive Highbeam Assist cur rently
una vailable See Owner's Manual .........377
Ad aptive Highbeam Assist inopera‐
tive ...................................................... 377
Ad aptive Highbeam Assist Plus cur‐
re ntly una vailable See Owner's Man‐
ual ...................................................... .377
Ad aptive Highbeam Assist Plus inop‐
erative ................................................ .377
App lybrake todeselect Park (P)
position ...............................................3 87
App lybrake toselect D or R ................387
App lybrake toselect R ........................ 387
Au xilia rybattery malfunction .............. 389
Beginning emer gency stop .................. 397
Blind Spot Assist cur rently una vaila‐
ble See Owner's Manual ...................... 402
Blind Spot Assist inope rative ............... 402 Index
449

Blind Spot Assi
stnot available when
to wing a trailer See Owner's Manual ...4 02
Cannot start engine See Owner's
Manual ................................................ .413
Check tyre pressures then restart
Ru n Flat Indicator ................................. 41 8
Cruise cont rol and Limiter inope ra‐
tive ...................................................... 394
Cruise control inope rative ................... 394
Cruise control off ................................ 394
Fr ont-passenger airbag disabled See
Owner's Manual ................................... 371
Fr ont-passenger airbag enabled See
Owner's Manual ................................... 371
Haza rdwa rning lamps malfunction‐
ing ...................................................... .377
Limiter inoperative .............................. 395
Limiter passive .................................... 394
Mercedes me connect Services limi‐
te d See Owner's Manual ......................41 0Mo
tor can be star ted again .................. 413
N permanently active Risk of vehicle
ro lling .................................................. 388
Only select Park (P) when vehicle is
st ationary ............................................ 386
Place theke y in the mar ked space
See Owner's Manual ............................374
PRE-SAFE impulse side inoperative
See Owner's Manual ............................372
PRE-SAFE inoperative See Owner's
Manual ................................................ 372
Re duce speed ...................................... 417
Re versing not poss. Consult work‐
shop ....................................................3 88
Risk of vehicle rolling Driver door
open and transmission not in P ...........387
Ru n Flat Indicator inope rative .............. 41 8
Speed limit (winter tyres) XXX km/h ... 396
St op vehicle Lea veengine running
Wa itTransmission cooling ...................389 To
shift out of P or N,depress brake
and start engine .................................. 387
To switch off the engine, press the
St art/ Stop button for at least 3 sec‐
onds or 3 times. .................................. 384
Tr af fic Sign Assi stcur rently una vaila‐
ble See Owner's Manual ...................... 401
Tr af fic Sign Assi stinope rative ............. 401
Tr ansmission Malfunction Stop ........... 388
Ty re press. monitor cur rently una vail‐
able ...................................................... 414
Ty re press. monitor inoperative ............414
Ty re press. monitor inoperative No
wheel sensors ...................................... 414
Ty re pressure Check tyres ....................417
Ty re(s) ove rheated ...............................4 16
Wi thout changing gear, consult work‐
shop ....................................................3 88
Display on the windscreen
see Head-up display 450
Index

Distance cont
rol
see Active Dis tance Assi stDISTRONIC
DI STRO NIC
see Active Dis tance Assi stDISTRONIC
Door Additional door lock ...............................74
Child saf ety lock (rear door) .................. 67
Locking (emergency key) ...................... .78
Opening (from the inside) ......................75
Po we r closing function .......................... 78
Un locking (emer gency key) .................... 78
Un locking (from the inside) ...................75
Door cont rol panel .................................... .14
Dr aw bar
see Tow- bar sy stem
Drive Away Assist .................................... 228
Drive Away Assist
see Pr otection against collision
Drive position Enga ging ..............................................1 70
Drive prog ram display ............................. 167
Drive prog rams
see DYNA MIC SELECT Driver's seat
see Seat
Driving abroad Symmetrical low beam ........................ 12 6
Driving saf ety sy stem ............................ .186
ABS (Anti-lock Braking Sy stem) ........... 188
Ac tive Brake Assi st.............................. 191
Ad aptive brake lights .......................... .196
BA S (Brake Assi stSystem) .................. 188
Cameras .............................................. 186
EBD (Electronic Brake forc e Distribu‐
tion) ..................................................... 191
ESP ®
Crosswind Assi st........................ 19 0
ESP ®
trailer stabilisation .................... .190
Overview .............................................. 187
Ra dar and ultrasonic sensors .............. 186
Re sponsibility ...................................... 186
ST EER CONTROL .................................. 191
Driving sy stem
DY NA MIC BODY CONTROL .................. 211
Driving sy stem
see 360° Camera
see Active Blind Spot Assi st
see Active Dis tance Assi stDISTRONIC see
Active Emergency Stop Assist
see Active Lane Keeping Assist
see Active Parking Assist
see Active Speed Limit Assi st
see Active Steering Assist
see AIR BODY CONTROL
see ATTENTION ASSIST
see Blind Spot Assist
see Cruise control
see Driving saf ety sy stem
see HOLD function
see Limiter
see Parking Assist PARKTRONIC
see Reversing camera
see Traf fic Sign Assi st
Driving tips Driving abroad (symmetrical low
beam) .................................................. 12 6
Gene ral driving tips ............................ .160
Ru nning-in no tes ..................................1 58
Dr ows iness de tection
see ATTENTION ASSIST
DY NA MIC BODY CONT ROL
Chassis ................................................ 211 Index
451