2022 MERCEDES-BENZ AMG GT COUPE alternator

Characteristics with high po
wer output requ ests:
R The electric mo tors support the combustion
engine (boost e.ect), e.g. when pulling away
or accelerating.
R The high-voltage battery is discharging.
Characteristics when releasing the accelerator
pedal during the journe y:
R The electric mo tor on there ar axle is operated
as an alternator when in overrun mode and
during braking.
R The high-voltage battery is charging.
% In drive prog ram Î, theve hicle drives
purely elect ricall y,in drive prog rams o,
CBand Ithe combustion engine
is alw ays on (/ page 183).
No tes on elect ric mode:
R Vehicles with hybrid systems in electric mode
ge nerate signi/cantly less noise when station-
ary and when being driven than vehicles with
combustion engines.
R When driving in elect ric mode theve hicle may
not be heard by otherroad users due tothe signi/cant
lyreduced noise generated when
driving and when at a standstill.
It is forth is reason that theve hicle is equip-
ped with a sound generator, which ser ves as
an acoustic vehicle alerting system (A VAS).
R If not all of theve hicle conditions for electric
mode are met, then the combustion engine is
switched on.
No tes on the acoustic vehicle alerting system:
R The sound generator generates a stationary
noise and speed-dependent vehicle noise
emissions up toa speed of about 30 km/h.
R This helps other road users, particular ly
pedest rians and cyclists, tohear your vehicle
better.
R When driving at speeds abo ve20 km/h the
acoustic vehicle alerting system gradually
switches theve hicle noise emissions o.. Manual disconnection of t
Manual disconnection of t he high-v
he high-volt
oltag
age on-
e on-
boar
boar d electr
d electr ical syst
ical syst em
em &
D
DAN
AN GER
GER Risk of death and /re due to
modi/ed and/or damaged components of
th e high-voltage on-board electrical sys-
tem
The vehicle's high- voltage on-board electrical
system is under high voltage. If you modify
component parts in theve hicle's high- voltage
on-board electrical system or touch damaged
component parts, you may be electrocuted. In
addition, modi/ed and/or damaged compo-
nents may cause a /re.
In theev ent of an accident or impact tothe
ve hicle underbod y,components of the high-
vo ltage electrical system may be damaged
although the damage is not visible. #
Never make any modi/cations tothe
high- voltage on-board electrical system. #
Do not switch on or use theve hicle if its
high- voltage on-board electrical system
components ha vebeen modi/ed or dam-
aged. 166 166
Driving and parking

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 recuper
ecuper ativ
ative br
e br ak
ake syst
e syst em
em
Depending on the selected recuperation le vel,the
electric mo tor on there ar axle is operated as an
alternator when in overrun mode and during brak-
ing in order tocharge the high-voltage battery
while driving. As soon as youta ke your foot o. the
accelerator pedal when theve hicle is in motion
and in transmission position h,recuperation in
ove rrun 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 deceleration in overrun mode may not be suf-
fi cient depending on the driving conditions.
Decelerating toa standstill is not possible. Also
brake with the service brake if necessar y.Alw ays
adapt your speed tothe driving conditions and
ke ep a su1cient distance.
The recuperative 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
In these cases, the desired deceleration is set by
th e brake control system. Manuall
Manuall y se
y setting r
tting r ecuper
ecuper ativ
ative deceler
e deceler ation
ation
R
R eq
eq uir
uir ements:
ements:
R Drive prog ram Î, A,CorB is
selected.
R ESP ®
is activated.
R Active Distance Assist DISTRONIC is not acti-
va ted. 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. 180
180
Driving and parking

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 c
es on c har
harging t
ging 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
OTE
TE Accelerated ageing of the high-volt-
age battery due tonot observing thefo l-
lowing recommendations As a
result of its basic characteristics, the
storage capacity of and the amount of energy
av ailable from the high-voltage battery decrease
over the course of its life. As a
re sult, the maximum electrical range that can
be achie vedby theve hicle is reduced and its
maximum electrical 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 25% and 30%. 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 204).
R Char gethe high-voltage battery if thech arge
le ve l is below 15%.
R Ifth e high-voltage battery is only used with at
low charge leve ls, fully charge the high-voltage
battery every six months.
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.
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) 194 194
Driving and parking