battery MERCEDES-BENZ E-CLASS SALOON 2020 Owner's Guide

Climate control
Displ
aymessages
Possible causes/consequences and M
MSolutions
& inoperative See Owner's
Man. *T
hestationary heater is temp orarily malfunctioning. #
When theve hicle is stationary on a le vel sur face and the engine has cooled down, make up tofour attem ptsto
switch on thest ationary heater, waiting se veral minutes between each attem pt. #
Ifth est ationary heater does not swit chon, consult a qualified specialist workshop.
&
inoperative Battery low *T
he on-board electrical sy stem voltage is too lo w.
The stationary heater has swit ched itself off. #
Drive an extended di stance until the battery has reached a suf ficient charge leve l again.
&
inoperative Refuel vehicle *T
here is too little fuel in the fuel tank. The stationary heater cannot be swit ched on. #
Refuel theve hicle. 378
Displaymessa ges and warning/indicator lamps

Ve
hicle Display messages
Possible causes/consequences and M
MSolutions
d Vehicle is operational
Switch off ignition before
exiting *Y
ou are leaving theve hicle when it is in a ready-to-drive state. #
When you lea vetheve hicle, switch off the ignition, secure theve hicle against rolling away and take theke y with
yo u. #
Ifyo u do not lea vetheve hicle, switch off the electrical consumers, e.g. the seat heating. Otherwise, the12 V
battery may dischar geand it will then be possible tostart theve hicle only with the aid of a second battery
(s ta rting assis tance).
ï Operation only possible in
transmission position P *
The ball neck will not swivel because transmission position h,kor neutral iis selected. #
Dep ress the brake pedal. #
Enga gepark position j.
ï
Trailer coupling extending… *T
he ball neck will retract/ extend.
Do not attem pttospeed up, slow down or initiate the swivel mo vement using your hand, foot or other aids. During
th e swivel mo vement, do not couple a trailer.
When the ball neck has reached an operational position, the display message will disappear. Display messages and
warning/indicator lamps 37 9

Display messages
Possible causes/consequences and M
MSolutions
Stop vehicle Leave engine
running Wait Transmission
cooling *T
he transmission is overheating. Pulling away may be temp orarily impaired or not possible. #
Stop theve hicle immediately in accordance with the traf fic conditions. Do not continue driving. #
Lea vethe engine running. #
Wait until the display message disappears before pulling away.
Auxiliary battery malfunc-
tion *T
he auxiliary batteryforth e transmission is no longer being charge d. #
Consult a qualified specialist workshop. #
Untilthen, alw ays select park position jmanually before you swit choff the engine. #
Before leaving theve hicle, apply the electric parking brake. Brakes
Display messages
Possible causes/consequences and M MSolutions
! Parking brake See Owner's
Manual *
The yellow ! indicator lamp is lit. The elect ric pa rking brake is malfunctioning.
To appl y: #
Switch the ignition off and switch it back on. #
Apply the electric parking brake manually (/ page184).
If it is not possible toapply the electric parking brake: #
Consult a qualified specialist workshop. Display messages and
warning/indicator lamps 389

Battery
Displ
aymessages
Possible causes/consequences and M
MSolutions
# 12 V battery See Owner's
Manual *T
he engine is off and thech arge leve l is too lo w. #
Switch off electrical consumers that are not required.
To charge the12 V battery: #
Lea vethe engine running for a few minutes, or drive an extended di stance.
*I fth e message appears while the engine is running, this indicates an on-board elect rical sy stem malfunction. #
Consult a qualified specialist workshop.
# See Owner's Manual *T
he12 V battery is not being charge d.
* NO
TEPossible engine damage if you continue driving #
Do not continue driving under any circum stances. #
Consult a qualified specialist workshop. #
Stop theve hicle immediately in accordance with the traf fic conditions and switch off the engine. #
Consult a qualified specialist workshop. Display messages and
warning/indicator lamps 411

Display messages
Possible causes/consequences and M
MSolutions
# Stop vehicle See Owner's
Manual *T
he12 V battery is no longer being charge d and thech arge leve l is too lo w.
* NO
TEPossible engine damage if you continue driving #
Do not continue driving under any circum stances. #
Consult a qualified specialist workshop. #
Stop theve hicle immediately in accordance with the traf fic conditions. Do not continue driving. #
Switch off the engine. #
Consult a qualified specialist workshop.
# Stop vehicle Leave engine
running *T
he12 V battery charge leve l is too lo w. #
Stop theve hicle immediately in accordance with the traf fic conditions. Do not continue driving. #
Lea vethe engine running. #
Wait until the display message disappears before pulling away. #
Ifth e display message does not disappear: consult aqualified specialist workshop.
Û 48 V battery See Owner's
Manual *T
he 48 V on-board electrical sy stem has function restrictions. Comfort functions may be restricted. #
Consult a qualified specialist workshop immediatel y.412
Displaymessa ges and warning/indicator lamps

Display messages
Possible causes/consequences and M
MSolutions
Ý Please wait 48 V battery
charging *T
he 48 V battery is dischar ged. You ha veswitched on the ignition while the12 V battery was being charge d with a
suitable charge r or while ano ther vehicle was pr oviding starting assis tance.
The discha rged 48 V battery is charge d automatically via thevo ltage con verter. Af ter a few minutes, theMotor can
be started again display message will be shown on the multifunction displa y. #
Start the engine. #
Drive theve hicle for a while tocharge the12 V battery and the 48 V battery af ter disconnecting thech arger
from theve hicle.
If th eMotor can be started again display message does not appear af ter a few minutes: #
Tryto start the engine again. #
Ifth e engine does not start, consult a qualified specialist workshop.
Cannot start engine See
Owner's Manual *T
hecharge leve l of the 48 V battery is too lo w.You can no lon gerst art the engine. #
Switch off electrical consumers that are not required. #
Connect a suitable charge r appro vedfo r Mercedes-Benz with suf ficient charge output tothe jump-s tart connec‐
tion point of the12 V battery (/ page 326).
The 48 V battery is charge d via thevo ltage con verter in theve hicle.
Motor can be started again *T
he 48 V battery has been charge d automatically via thevo ltage con verter. #
Start the engine and drive theve hicle for a while tocharge the12 V battery and the 48 V batter y. Displ
aymessa ges and warning/indicator lamps 413

1,
2, 3 ...
4MATIC ..................................................... 172
Fu nction ............................................... 172
12 V battery
see Battery (vehicle)
12 V so cket
see Soc ket (12 V)
48 V on-board electrical sy stem
Operating saf ety .................................... 22
230 V soc ket
see Soc ket (230 V)
360° Camera ........................................... 220
Ca re ..................................................... 310
Fu nction .............................................. 220
Selecting a view ................................... 224
Switching au tomatic operation
on/off (r eversing camera) .................. .224 A
A/C function Activating/deactivating (MBUX mul‐
timedia sy stem) ................................... 14 5
Switching on/off (control panel) ......... 14 4ABS (Anti-lock Braking Sy
stem) ............ .188
Ac celeration
see Kickdown
Ac cident and Breakdown Manage‐
ment
Mercedes me connect ........................ .279
Ac oustic locking verification signal
Ac tivating/deactivating ......................... 72
Ac tive Blind Spot Assi st......................... 233
Ac tivating/deactivating ...................... .236
Brake application ................................. 235
Fu nction .............................................. 233
Sy stem limitations ...............................2 33
Tr ailer operation .................................. 235
Ac tive bonn et(pedestrian pr otection) .. 300
Operation ............................................ 300
Re setting ............................................. 300
Ac tive Brake Assi st
Fu nction/no tes .................................... 191
Setting ................................................. 19 5
Ac tive Di stance Assist DISTRO NIC........ 19 9
Ac tive Emergency Stop Assist .............2 08
Calling up a speed ............................... 202 Fu
nction .............................................. 19 9
Increasing/decreasing speed .............. 202
Re quirements: .................................... .202
Ro ute-based speed adap tation ........... .205
Selecting ............................................. 202
St eering wheel buttons ....................... 202
St oring a speed ................................... 202
Switching off/deactivating .................. 202
Switching on/activating ......................2 02
Sy stem limitations ...............................1 99
Ac tive Eme rgency Stop Assist ...............208
Ac tive headlamps .................................... 12 9
Ac tive Lane Keeping Assist .................... 236
Ac tivating/deactivating ...................... .239
Ac tivating/deactivating thewa rning .. .239
Fu nction .............................................. 236
Setting the sensitivity .......................... 239
Sy stem limits ....................................... 236
Tr ailer operation .................................. 236
Ac tive Parking Assist .............................. 224
Exiting a parking space ...................... .228
Fu nction .............................................. 224
Pa rking ................................................ 226
Sy stem limitations ...............................2 24 Index
439

Air-conditioning sy
stem
see Climate control
Air-recirculation mode ............................14 6
Air-water duct .......................................... 307
Ke eping free ........................................3 07
Airbag ........................................................ .41
Ac tivation .............................................. 36
Fr ont airbag (driver, front passenger) ..... 41
Ins tallation locations .............................. 41
Knee airbag ............................................ 41
Overview ................................................ 41
PA SSENGER AIR BAG indicator lamp .... .46
Pr otection ..............................................42
Re duced pr otection ...............................43
Side airbag ............................................. 41
Wi ndow airbag ....................................... 41
Airflow Setting ................................................ .143
Alarm sy stem
see ATA (anti-theft alarm sy stem)
All-wheel drive see 4MATIC Ambient lighting
Setting (multimedia sy stem) ................1 35
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 ...............................74
Immobiliser ........................................... 93
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 ........................................... 299
Battery disconnection pe riods .............3 00
Displ aying the service due date ........... 299
Fu nction/no tes ................................... 299
Re gular maintenance work .................. 299
Special service requ irements .............. 299
ATA (anti-theft ala rmsystem) .................. 93
Deactivating the alarm .......................... 94
Fu nction ................................................ 93
Fu nction of interior pr otection ............... 94
Priming/deactivating interior pr otec‐
tion ........................................................ 95
Priming/deactivating tow- aw ay pro‐
te ction ................................................... 94
To w- aw ay protection function ................94
AT TENTION ASSI ST.......................... 230, 231
Fu nction .............................................. 230
Setting ................................................. 231
Sy stem limitations ...............................2 30
At tention assistant
see ATTENTION ASSIST
Au thorised workshop
see Qualified specialist workshop Index
441

Au
tomatic distance control
see Active Dis tance Assi stDISTRONIC
Au tomatic driving lights .........................127
Au tomatic engine start (ECO start/
sto p function) .......................................... 16 2
Au tomatic engine stop (ECO start/
sto p function) .......................................... 16 2
Au tomatic front passen ger front air‐
bag deacti vation sy stem
see Automatic front passenger front
airbag shutoff
Au tomatic front passen ger front air‐
bag shu toff .......................................... 44, 46
Fu nction of the automatic front
passenger front airbag deactivation
sy stem ................................................... 44
PA SSENGER AIR BAG indicator lamp .... .46
Au tomatic mir rorfo lding function
Ac tivating/deactivating ...................... .141
Au tomatic seat adjustment
Setting ................................................. 103
Au tomatic transmission
DIRECT SELECT le ver ........................... 16 8Drive program display ..........................
167
Drive programs .................................... 16 6
DY NA MIC SELECT switch .................... 16 6
Engaging drive position ....................... 17 0
Engaging neutral .................................. 16 9
Engaging pa rkposition ........................ 17 0
Engaging reve rsege ar ........................ .169
Kickdown ............................................. 171
Manual gear changing ........................ .170
St eering wheel gearshift paddles ........ .170
Tr ansmission position display .............. 16 8
Tr ansmission positions ........................ 16 8
Axle load Perm issible .......................................... 353
Tr ailer operation .................................. 368 B
Ball neck Extending/r etra cting ........................... 24 0
Extending/r etra cting (MBUX multi‐
media sy stem) .....................................2 41
BA S (Brake Assist Sy stem) .................... .188
Battery Key ........................................................ 73Re
mo tecontrol (s tationary heater) ...... 151
Battery see Battery (vehicle)
Battery (vehicle) ...................................... 327
Charging .............................................. 326
Charging (Remo teOnline) .................... 157
No tes .................................................. 322
No tes (s tarting assis tance and
ch arging) ............................................ .324
Re placing .............................................3 27
St arting assis tance .............................. 326
Belt see Seat belt
Bic ycle rack
Load capacity ...................................... 367
Tr ailer operation .................................. 24 4
Blind Spot Assi st..................................... 233
Ac tivating/deactivating ...................... .236
Fu nction .............................................. 233
Sy stem limitations ...............................2 33
Blo wer
see Climate control 442
Index

D
Dashboa rd
see Cockpit
Data acquisition Vehicle ................................................... 31
Data storage
Electronic control units .......................... 31
Online services ...................................... 33
Ve hicle ................................................... 31
Deactivating the ala rm(ATA ).................... 94
Deale rship
see Qualified speciali stwo rkshop
Declaration of conformity Electromagnetic compatibility ............... 24
Jack ...................................................... .27
TIREFIT kit ............................................. 28
Wi reless vehicle components ................24
Decorative foil (cleaning instructions)
.................................................................. .309
DeNO x agent
see AdBlue ® De
stination entry .................................... .271
Entering a POI or address .................... 271
De tecting inat tentiveness
see ATTENTION ASSIST
Diagnostics connection ............................29
Diesel Low outside temp eratures ...................3 58
No tes .................................................. 358
Digital Owner's Manual .............................18
Digital Vehicle Keyst icker
Locking theve hicle ................................ 76
St arting theve hicle ............................. 15 6
Unlocking theve hicle ............................76
Dinghy towing
see Tow- bar sy stem
Dipped beam Setting .................................................1 34
DIRECT SELECT le ver............................... 16 8
Engaging drive position ....................... 17 0
Engaging neutral .................................. 16 9
Engaging pa rkposition ........................ 17 0
Engaging pa rkposition automatically .. 17 0
Engaging reve rsege ar ........................ .169 Fu
nction .............................................. 16 8
Display (care) .......................................... .312
Display (MBUX multimedia sy stem)
Home screen ...................................... .257
Display (multimedia sy stem) ................ .258
Operating ............................................ 258
Display (on-board comp uter)
Displ ays on the multifunction display .. 252
Display message .....................................3 69
Calling up (on-board computer) ........... 369
No tes .................................................. 369
Display messages ¯ - - - km/h ................................... 394
ç - - - km/h ................................... 395
È - - - km/h ................................... 394
# 12V battery See Owner's Man‐
ual ........................................................ 411
Û 48 V battery See Owner's Man‐
ual ........................................................ 412
: Active Light Sy stem inopera‐
tive .......................................................3 76446
Index