battery MERCEDES-BENZ E-CLASS SALOON 2021 Owner's Manual

R
R
eg
eg ener
ener ativ
ative br
e br ak
ake syst
e syst em (plug-in h
em (plug-in h ybr
ybrid)
id) F
F
unction of t
unction of t he r
he reg
egener
ener ativ
ative br
e br ak
ake syst
e syst em
em
Depending on the selected recuperation le vel,the
electric mo tor is operated as an alternator when
in ove rrun mode and during braking in order to
ch arge the high-voltage battery while driving. As
soon as youre lease the accelerator pedal when
th eve hicle is in motion, recuperation in overrun
mode is initiated.
The higher there cuperation, the more sharply the
ve hicle is braked when coasting and the more
electrical energy is fed into the high-voltage bat-
te ry.
The rege nerative brake system has thefo llowing
ch aracteristics:
R supports braking with elect ronically cont rolled
brake forc e boosting
R con verts th e kinetic energy of theve hicle into
elect ric energy
% Ifyo u brake hard, the mechanical brake is
also used. This means that the maximum
re cuperative energy cannot be reco vered. The
more you drive and brake in an anticipatory manner,
the more e1cient lyenergy can be
re cuperated.
Syst
Syst em limits em limits
The braking e.ect of the electric mo tor during
re cuperation in overrun mode may be reduced or
may not be available at all in thefo llowing situa-
tions:
R when the high-voltage battery charge level
increases
R ifth e high-voltage battery is not yet at a nor-
mal operating temp erature
R when driving at speeds close tozero
R in transmission position 005C
R during and aTer ESP ®
inter venes
In these cases, the desired deceleration is set by
th e brake control system. Also brake with the
service brake if necessar y.
Manuall
Manuall y se
y setting r
tting r ecuper
ecuper ativ
ative deceler
e deceler ation
ation
% IntheÎ drive prog ram, you can use the
stee ring wheel gearshiT paddles tomanually
adjust the intensity of recuperation in overrun
mode. %
When theve hicle is star ted again or transmis-
sion position 005Bis engaged again, the stand-
ard setting is automatically set:
The following recuperation le vels are available:
R 005B0058 Intelligent, anticipa tory recuperation
with ECO Assist (standard setting)
(/ page 177, 180)
R 005B0064 Norecuperation: theve hicle rolls freely
R 005B Normal recuperation
R 005B0058 Increased recuperation: st rong deceler-
ation in overrun mode, e.g. for driving on
downhill gradients Driving and parking
179
179

R
Ifro ad signs are hard todetect, e.g. due to
dirt, snow or insu1cient lighting, or because
th ey are obscured.
R Ifth e information on the navigation system's
digital map is incor rect, insu1cient or out of
date.
R If signs are ambiguous, e.g. road signs in road-
wo rks or in adjacent lanes. F F
unction of t
unction of t he r
he rout
out e-based oper
e-based oper ating-mode s
ating-mode strtrat-
at-
egy (plug-in h
egy (plug-in h ybr
ybrid)
id) %
The following function is countr y-dependent
and available only in conjunction with an inte-
gr ated navigation system.
The route-based operating-mode strategy is active
only in drive prog rams A and;. When
ro ute guidance is active, data on the planned
ro ute is anal ysed. This function can be activated
and deactivated in the multimedia system
(/ page 326).
If th e function is active, data on the fur ther course
of thero ute is evaluated. This includes, e.g. road
type, speed limi tations and altitude data. The
hybrid system then adapts the operating
strategy tothe fur ther course of thero ute:
R Use of electrical energy and the combustion
engine are adap ted.
R State of charge ofthe high-voltage battery is
controlled accordingl y.
R Electrical energy is reser ved especially for
electric mode, e.g. urban route sections and
low emission zones.
R The vehicle automatically selects the operat-
ing mode.
When thero ute-based operating-mode strategy is
activated, the energy 0ow display sho ws the sta-
tus of the function as – active or passive
(/ page 327).
The route-based operating-mode strategy is
switched topassive under thefo llowing condi-
tions:
R You are driving in a drive prog ram other than
A or;.
R Route guidance is active.
R High-voltage battery's state of charge istoo
lo w. F
F
unction of t
unction of t he hap
he haptic acceler
tic acceler at
ator pedal (plug-in
or pedal (plug-in
h
h ybr
ybr id)
id) The haptic accelerator pedal has an additional
point of resis tance follo we dby increased pedal
re sis tance tohelp you drive fully electricall y.
Characteristics of the additional point of resist-
ance:
R Available only in drive prog ram Î
R Is used when the electric mo tor po werav aila-
bility displ ay(POWER) is full
R Indicates the maximum available elect ric per-
fo rm ance
The subsequent increased pedal resis tance
indicates that the journey is being continued
with the combustion engine. 182
182
Driving and parking

D
D
YN
YNAMIC SELECT switch AMIC SELECT switch F
F
unction of t
unction of t he D
he DYN
YNAMIC SELECT switchAMIC SELECT switch *
N
NOOTE
TE Mercedes-AMG vehicles #
Obser vethe no tes in the Supplement.
Yo u could otherwise failto recognise
dangers. %
Depending on the engine and equipment, the
ve hicle has di.erent drive prog rams.
Use theDY NAMIC SELECT switch tochange
between thefo llowing drive prog rams.
The drive prog ram selected appears in the multi-
function display of the on-board computer.
= Individual
R Individual settings
B Sport+
R Particular lysporty driving
R Driving with the combustion engine and rein-
fo rc ed boost e.ect (plug-in hybrid) R
Emphasises theve hicle's ownove rste ering
and understeering characteristics for a more
active driving style
R Only suitable for good road conditions, a dry
ro ad sur face and a clear st retch of road
C Sport
R Continues too.er stability but with a sporty
setup
R Allo ws th e sporty driver a more active driving
style
R Driving with the combustion engine and rein-
fo rc ed boost e.ect (plug-in hybrid)
R Only suitable for good road conditions, a dry
ro ad sur face and a clear st retch of road
A Comfort
R Comfor table and economical driving
R Balance between traction and stability
R The selection of the matching drive type by
th ehy brid system depends on the driving con-
ditions and the distance (plug-in hybrid)
R Recommended for all road conditions Î
Electric (plug-inhybrid)
R electric mode – driving without the combus-
tion engine is possible up toappr ox.
160 km/h
R Adjustable recuperation in overrun mode
R Adaptation of Active Distance Assist
DISTRONIC for electric mode
R Limiting the maximum set speed for cruise
control, limiter and Active Distance Assist
DISTRONIC tothe maximum electrically driva-
ble speed
R activation of the combustion engine via the
pressure point of the haptic accelerator pedal
Ï Battery Level (plug-inhybrid)
R Prioritised maintenance of the state of charge
of the high-voltage batter y,e.g. for subse-
qu ent journe ysinthe inner city/low emission
zones
R The selection of the matching drive type by
th ehy brid system depends on the driving con-
ditions and the distance Driving and parking
183
183

;
Eco
R Particular lyeconomical driving
R Balance between traction and stability
R Recommended for all road conditions
R Full de velopment of all intelligent hybrid func-
tions and adap tation of the coasting charac-
te ristics of theve hicle totra1c (plug-in hybrid)
R The selection of the matching drive type by
th ehy brid system depends on the driving con-
ditions and the distance (plug-in hybrid)
% The ESP ®
settings in the drive prog rams ;
and A are designed for stability. Therefore,
ch oose one of these driving prog rams, espe-
cially when transporting roof loads, in trailer
operation and when theve hicle is fully loaded
or fully occupied.
% Plug-in h
Plug-in h ybr
ybrids wit
ids wit h diesel par
h diesel par ticulat
ticulate
e/lt
/lt er
er s:
s:
during there ge neration of the diesel particu-
late /lter, the drive prog rams are not available
or are restric ted and state of charge ofthe
high- voltage battery may change. Depending on
the drive prog ram, thefo llowing
systems change their characteristics:
R drive
- engine and transmission management
- Active Distance Assist DISTRONIC
R ESP ®
R V
V ehicles wit
ehicles wit h AIR BOD
h AIR BODY C
Y CONTR
ONTR OL or
OL or
D
D YN
YNAMIC BOD AMIC BOD Y C
Y CONTR
ONTR OL:
OL:suspension
R electric po wer steering Selecting t
Selecting t
he dr
he driv
ive pr
e pr ogr
ogram
am #
Press DYNAMIC SELECT switch 1forw ards
or backwards.
The drive prog ram selected appears in the
inst rument displa y. 184
184
Driving and parking

av
ailable, you can also top up AdBlue ®
using a
canister. #
Screw onthefa stener of AdBlue ®
re/ll canis-
te r4. #
Screw disposable hose 3onto the opening
of Ad Blue ®
re/ll canis ter4 until hand-tight. #
Screw disposable hose 3onto the /ller neck
of theve hicle until hand-tight. #
LiT up and tip AdBlue ®
re/ll canis ter4.
The /lling process stops when theAd Blue ®
ta nk is comple tely full. Ad
Blue ®
re/ll canis ter4 can be remo ved
when it has been only partial lyem ptied. #
Unscr ewand close disposable hose 3and
Ad Blue ®
re/ll canis ter4 inreve rse order. #
Replace AdBlue ®
/ller cap 2and turn it
clo ckwise until it audibly engages. #
Close fuel /ller 0ap 1. #
Switch on theve hicle for at least 60 seconds.
% Ifth eve hicle could not be star ted as the
Ad Blue ®
tank was em pty, it can take up to
60 seconds forth ere /ll tobe de tected. #
Start theve hicle.
% Avoid storing AdBlue ®
re/ll con tainers perma-
nently in theve hicle. Char
Char
ging t
ging t he high-v
he high-v olt
oltag
age batt
e batt er
ery (plug-in
y (plug-in
h
h ybr
ybr id)
id) N
No
ot
tes on t
es on t he high-v
he high-v olt
oltag
age batt
e batt ery
ery *
N
NOOTE
TE High-voltage battery damage due to
leaving theve hicle idle for lengt hyperiods
of time Lithium-ion batteries
experience a natural self-
dischar ge.
Exhausti vedischarging can therefore occur if
th eve hicle is idle for se veral months. This can
damage the high-voltage batter y. #
Toavo id damage, please obser vethefo l-
lowing recommendations when handling
th e high-voltage batter y. *
N
NO
O TE
TE Accelerated ageing of the high-volt-
age battery As a
result of its basic characteristics, the
storage capacity of and the amount of energy
av ailable from the high-voltage battery decrea-
ses over the course of its life. Due tothis, bo th 196
196
Driving and parking

th
e maximum electrical range that can be ach-
ie ve dby theve hicle and its maximum elect ri-
cal output can be impaired.
The following factors could accelerate the age-
ing of the high-voltage batter y:
R a high le vel of charge , especially if the
ve hicle is idle for a lengt hyperiod of time
R leaving theve hicle idle for lengt hyperiods
at high ambient temp eratures #
Toavo id accelerated ageing, please
obser vethefo llowing recommendations
when handling the high-voltage batter y.Re
commendations when handling the high-voltage
batter y:
R If leaving theve hicle idle for lengt hyperiods,
park up theve hicle with a high- voltage battery
ch arge leve l between 30% and 50%. Do not
ke ep the high-voltage battery continuously
connected topowe r supply equipment.
R If leaving theve hicle idle for lengt hyperiods of
time avoid, if possible, high ambient temp era-
tures. R
Check the high-voltage battery's charge level
ev ery six weeks (/ page 326).
R Char gethe high-voltage battery if thech arge
le ve l is below 20%.
R Do not disconnect the 12 V battery even if the
ve hicle is leT idle for a lengt hyperiod. Other-
wise, the condition of theve hicle's high- volt-
age battery cannot be monitored.
Yo u can contribute toreducing theve hicle's
ene rgy consum ption in thefo llowing ways:
R An anticipatory driving style (/ page 176)
R Reduced use of electrical consumers
R Having theve hicle regula rly main tained
Char
Char ging op ging op tions f
tions for t
or the high-v
he high-v olt
oltag
age batt
e batt ery
ery
(mode 2 and 3)
(mode 2 and 3)
The high-voltage battery will be charge dby recu-
peration while you are driving. The electric mo tor
ser ves as an alternator when in overrun mode and
during braking.
Yo u ha vethefo llowing options tocharge while
stationar y:
R Ata mains soc ket (mode 2) R
Atawa llbox or charging station (mode 3)
Depending on the count ry-speci/c vehicle equip-
ment and your vehicle's charging cable, single
phase ACcharging is also possible.
Obser vethe di.erent grid requ irements of your
cur rent location when charging. Only use charging
cables which conform tothegr id requ irements.
Consult a quali/ed electrician or your local grid
operator if you ha veany questions.
It is recommended that youch arge the high-volt-
age battery at a wallbox or charging station due to
th e impr ovedch arging per form ance and better
ch arging e1ciency o.ered.
S
S t to
o wing t
wing t he c
he char
harging cable
ging cable
Alw ays st owtheve hicle charging cable in the
ch arging cable bag pr ovided and secure it in the
boot or load compartment of your vehicle.
Otherwise, thech arging cable is not su1ciently
secured. Driving and parking
197
197

Syst
Syst
em limits
em limits
The po wer output of the high-voltage battery may
be impaired bythefo llowing:
R High or low outside temp eratures
R Electrical auxiliary consumers in theve hicle
being switched on, e.g. operating the air con-
ditioning system
R Extended periods without charging
The charging time of the high-voltage battery may
be increased bythefo llowing:
R High or low outside temp eratures
R Extended periods without charging
R The maximum available charging cur rent of
th e po wer supply equipment
R The charging cur rent set (mode 2) in the multi-
media system (/ page 326) N
No
ot
tes on c
es on c har
harging t
ging t he high-v
he high-v olt
oltag
age batt
e batt er
ery at t
y at t he
he
mains soc ke
mains soc ket (mode 2)
t (mode 2) &
D
DAN
AN GER
GER Risk of fatal injury from incor-
re ctly ins talled component parts
Connecting thech arging cable toa mains
soc ket using incor rectly ins talled component
parts could cause a /re or an electric shoc k,
fo rex ample. #
Only connect thech arging cable to a
mains soc ketth at:
R Has been proper lyinstalled and
R Has been inspected byaqu ali/ed elect ri-
cian #
For saf etyre asons, only use thech arging
cable supplied with theve hicle or an
original Mercedes-Benz charging cable.
Mercedes-Benz thoroughly tests these
original charging cables forth eir suitabil-
ity for high-voltage charging of your vehi-
cle. Pur chase these parts at a Mercedes-
Benz Service Centre and obtain advice
th ere. #
Never use a damaged charging cable. #
Do not use:
R Extension cables
R Extension reels
R Multiple soc kets #
Never use soc ket ada pters toconnect
th ech arging cable tothe mains soc ket.
The only exception being if the adap ter
has been tested and appro vedby the
manufacturer forch arging the high-volt-
age battery of an electric vehicle. #
Obser vethe saf ety no tes in the operat-
ing inst ructions forth e soc ket ada pter. Only
thefo llowing charging cables may be used:
R The charging cable supplied with theve hicle.
R Ach arging cable that has been appr ovedfor
th eve hicle.
The charging process can vary depending on the
po we r supply equipment. 198 198
Driving and parking

Sho
rter charging times can be achie ved in thefo l-
lowing ways:
R Charging at a wallbox.
R Charging at a charging station.
When doing so, alw ays obser vethe local informa-
tion.
Do not lea vethech arging cable cont rols hanging
loose from a mains soc ket.
Do not liT the controls bythefo llowing compo-
nent parts:
R The charging cable connector.
R The mains plug.
When charging, pr otect thech arging cable cont rol
element from excessive heat such as direct sun-
light. Otherwise, thech arging process may be
cancelled. N No
ot
tes on c
es on c har
harging t
ging t he high-v
he high-v olt
oltag
age batt
e batt er
ery at a
y at a
w
w allbo
allbo x or c
x or c har
harging st
ging st ation (mode 3)
ation (mode 3) &
D
DAN
AN GER
GER Risk of fatal injury from incor-
re ctly ins talled component parts
Connecting thech arging cable toawa llbox
using incor rectly ins talled component parts
could cause a /re or an electric shoc k,for
ex ample. #
Only connect thech arging cable to a
wa llbox that:
R Has been proper lyinstalled and
R Has been inspected byaqu ali/ed elect ri-
cian #
For saf etyre asons, only use charging
cables that ha vebeen tested and
appro vedby the manufacturer forch arg-
ing the high-voltage battery in an electric
ve hicle. #
Never use damaged charging cables. #
Do not extend thech arging cable. #
Do not use adap ters. #
Obser vethe saf ety no tes in the operat-
ing inst ructions forth ewa llbox. If
ch arging at a wallbox without pre-ins talled
cable, use the optionally available charging cable
fo rwa llbox and charging station (mode 3). The
ch arging cable is st owed in a bag in the boot/
luggage compartment.
Only use charging cables that ha vebeen tested
and appro vedby the manufacturer forch arging
th e high-voltage battery in an electric vehicle. &
D DAN
AN GER
GER Risk of fatal injuries due todam-
aged components
Connecting thech arging cable toach arging
station using a damaged component part
could cause a /re or an elect ric shoc k,for
ex ample. #
Forch arging stations with a preinstalled
ch arging cable:
R Perform a visual check of thech arg-
ing station for obvious faults, such as
massive damage tothe housing or
ch arging cable. Driving and parking
199 199

#
Forch arging stations without a preinstal-
led charging cable:
R For saf etyre asons, only use charging
cables that ha vebeen tested and
appro vedby the manufacturer for
ch arging the high-voltage battery in
an electric vehicle.
R Never use damaged charging cables.
R Do not extend thech arging cable.
R Do not use adap ters. #
Make sure toobser vethe saf ety in form a-
tion on thech arging station. Most
charging stations must be activated before
th ech arging process, e.g. using an RFID card.
Obser vethe on-site operator's inst ructions forthe
ch arging station.
The amount of ene rgy dispensed forth ech arging
process, shown bythech arging station, may be
higher than the amount of energy actually absor-
bed bythe high-voltage batter y.This is there sult
of di.erent le vels of charging losses and is descri-
bed as rech arge e1ciency. Charging losses occur,
fo rex ample, due toheat that builds up when ch
arging or from auxiliary consumers that are
switched on. Further information on rech arge e1-
ciency can be obtained at a quali/ed specialist
wo rkshop. Se
Se
tting t
tting t he maximum per
he maximum per missible c
missible char
harging cur-
ging cur-
r
r ent f
ent f or c
or char
harging at a mains soc ket
ging at a mains soc ket *
N
NO
OTE
TE Overloading the mains soc ket due
to excessive charging cur rent If
th ech arging cur rent is too high, the fuse
could be tripped or theex tern al mains supply
could overheat. #
Make sure that theex tern al mains supply
has been designed tohandle the set
ch arging cur rent. #
If necessar y,reduce the set charging
cur rent or use a di.erent mains soc ket. #
For saf etyre asons, only use thech arging
cable supplied with theve hicle or an
original Mercedes-Benz charging cable.
Mercedes-Benz thoroughly tests these
original charging cables forth eir suitabil-
ity for high-voltage charging of your vehi- cle. Pur
chase these parts at a Mercedes-
Benz Service Centre and obtain advice
th ere. #
Check the setting of the maximum
ch arge cur rent using thech arging capa-
city shown in the Instrument Displa y. Before
charging at a mains soc ket, ha vethe maxi-
mum permissible charging cur rent forth ere leva nt
mains soc ket or the building inspected byaqu ali-
/ed elect rician. The charging cable supplied is set
to a countr y-speci/c maximum charging cur rent
va lue. When charging abroad, the maximum value
may exceed the permitted value forth at countr y.
When abroad, obser vethe count ry-speci/c la ws
when charging. If you ha vequestions concerning
setting thech arging cur rent or if there is a mal-
function, please contact a quali/ed specialist
wo rkshop. #
Set the maximum permissible charging cur-
re nt in the multimedia system menu
(/ page 326). 200 200
Driving and parking

Ov
Ov
er
ervie
vie w of t
w of t he indicat
he indicat or lam
or lamp st
p st atus
atus Indicat
Indicat
or lamp
or lamp Meaning
Meaning
Flashes orang eConnection is being
established
Flashes green Charging process
Lights up orang eInterruption in charg-
ing
Lights up green High-voltage battery
fullycharged
Flashes redM alfunction T
T
ype 2 v
ype 2 v ehicle soc ket
ehicle soc ket 1
Locking status
2 Status of thech arging process Ov
Ov
er
er vie
vie w of t
w of t he loc
he loc king st
king st atus
atus Loc
Loc
king st
king st a-
a-
tus
tus 1
1 Displ
ay
Display Meaning
Meaning
0036 Lights up
whiteR
The vehi-
cle soc ket
is
unloc ked
R Connect
orremo ve
ch arging
cable Ov Ov
er
er vie
vie w of t
w of t he c
he char
harging pr
ging pr ocess st
ocess st atus
atus S
S
t
t atus of t
atus of t he
he
c
c har
har ging
ging
pr
pr ocess
ocess 2
2 Displ
ay
Display Meaning
Meaning
003D Flashes
orangeConnection is
being estab-
lished
003D Flashesgreen Active energy
0ow Driving and parking
203 203