2021 MERCEDES-BENZ EQA SUV battery

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PRE-SAFE inoperative See
Owner's Manual *
The PRE‑SAFE ®
functions are malfunctioning. #
Consult a quali/ed specialist workshop. K K
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ey
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Á
Replace key *H
aveth eke yre placed. #
Consult a quali/ed specialist workshop.
Á
Change key batteries *T
hekey battery is dischar ged. #
Replace the battery (/ page 81).362
362
Display messages and
warning/indicator lamps

Climat
Climat
e contr
e contr ol
ol Displa
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&
inoperative High-voltage
battery charging incom-
plete *T
he high- voltage battery is charging. Pre-ent ryclimate cont rol cannot be switched on. #
Wait until thech arging process has achie ved a minimum charge.
&
inoperative Charge HV bat-
tery *T
hecharge ofthe high-voltage battery is too lo w.Pre-entry clima tecont rol cannot be switched on. #
Char gethe high-voltage batter y.
& Pre-entry climate control
(via key) available again
after engine start *Y
ou ha veattem pted toswitch on pre-ent ryclimate cont rol more than thre e times with theve hicle switched o.. #
Start theve hicle forte n seconds.
Pre-entry clima tecont rol is operational again. 366 366
Display message
s andwarning/indicator lamps

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&
Pre-entry climate control
(via key) inoperative HV-
battery low *T
hecharge ofthe high-voltage battery is too lo w.Pre-entry clima tecont rol cannot be switched on. #
Char gethe high-voltage batter y.
When the high-voltage battery is su1ciently charge d, pre-ent ryclimate cont rol will be operational again. Dr Dr
iv
ive syst
e syst em
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d
Performance severely limi-
ted *A
malfunction has occur red in the high-voltage batter y.
Output and range are se verely re stricted. #
Switch theve hicle o. and lock it. #
ATer waiting for a short time, unlock theve hicle and start it again.
If th e display message appears again: #
Drive on carefull y. #
Fully charge the high-voltage battery (/ page 163).
If th e output and range are still reduced, there is a malfunction in the drive system. Display messages and
warning/indicator lamps
367 367

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*T he high- voltage battery is not charge d su1cient ly.
Drive system po wer output is reduced. The yellow reduced po wer output warning lamp _is lit. #
Drive on carefull y. #
Char gethe high-voltage battery immediatel y.
*I fth e drive system po wer output is still reduced, there is a fault in the drive system. #
Drive on carefull y. #
Consult a quali/ed specialist workshop.
Û
Stop immediately Drive will
be deactivated Charge
high-volt. battery *T
hecharge leve l of the high-voltage battery is so low that it is no lon ger possible todrive theve hicle. The drive system
can no lon ger be restar ted.
When the drive system is restar ted, the message Stop immediately Drive will be deactivated Charge high-volt. bat-
tery will appear again. #
Stop theve hicle immediately in accordance with the tra1c conditions. #
Char gethe high-voltage battery (/ page 163).
Please wait. Battery has
not yet reached operating
temperature. Engine can-
not start. *O
perational readiness is es tablished õandthe transmission position jis engaged.
The high-voltage battery is warmed up tothe operating temp erature. This process can take afew minutes and may be
prolonged if defrosting of the windscreen ¬is activated.
The heating process ends when transmission position his engaged. Ho wever, when driving, the output is signi/cantly
limited until the high-voltage battery has reached its operating temp erature. 372 372
Display messages and
warning/indicator lamps

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Û
Battery overheated Stop,
everybody out! Outdoors if
possible *T
he high- voltage battery has overheated. There is a risk of /re. #
Stop theve hicle immediately in accordance with the tra1c conditions. #
If possible, stop theve hicle in the open air and ensure that all vehicle occupants getout.
% Supporting vehicle functions may activate automaticall y,e.g. the air-recirculation mode as part of climate control. #
Do not continue driving. #
If smoke is present, lea vethe danger zone and call the /re service immediatel y. #
Consult a quali/ed specialist workshop even if there are no extern al signs of a /re.
Û
Malfunction *T
he drive system is malfunctioning. A warning tone will also sound. #
Consult a quali/ed speciali stwo rkshop.
*T here is a serious malfunction if the display message and warning tone are repeated at short inter vals. You must stop
th eve hicle immediately in accordance with the tra1c conditions because the drive system is automatically deactiva-
te d. #
Stop theve hicle immediately in accordance with the tra1c conditions. #
Switch o. theve hicle and consult a quali/ed specialist workshop.
Û
Malfunction Visit workshop *T
he drive system is malfunctioning. #
Consult a quali/ed specialist workshop. Displ
aymessages and warning/indicator lamps
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373

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Without starting engine
again, consult workshop *I
t is not possible torestart the drive system due toa malfunction. #
Do not switch o. the drive system; drive on tothe nearest quali/ed specialist workshop.
ô Reserve level Charge high-
voltage battery *T
hecharge leve l of the high-voltage battery has dropped into there ser verange. #
Cha rgeth e high-voltage battery (/ page 163).
#
12 V battery See Owner's
Manual *T
he drive system is o. and thech arge leve l of the 12 V battery is too lo w. #
Switch o. elect rical consume rsthat are not requ ired. #
Drive theve hicle for 30–60 minutes.
or #
Char getheve hicle at a charging station (/ page 163).
If th e message appears while theve hicle is switched on, this indicates an on-board electrical system malfunction. #
Consult a quali/ed specialist workshop.
d
Malfunction *T
he drive system is malfunctioning. The output of your vehicle is restric ted. #
Consult a quali/ed specialist workshop. 374 374
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aymessages and warning/indicator lamps

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d
Stop Switch engine off *T
he drive system is malfunctioning. #
Stop theve hicle immediately in accordance with the tra1c conditions and switch o. the drive system. Do not con-
tinue driving. #
Do not tow theve hicle, stop towing if necessar y. #
Consult a quali/ed specialist workshop.
d
Malfunction Visit workshop *T
he drive system is malfunctioning. #
Consult a quali/ed specialist workshop.
High-voltage battery main-
tenance required urgently.
No start in approx. XXX km
(yellow display message) *A
malfunction has occur red in the high-voltage batter y.
It will no lon ger be possible tostart the electric drive system aTer the distance displa yed has been co vered. #
Have the necessary maintenance workon the high-voltage battery car ried out at a quali/ed specialist workshop.
High-voltage battery main-
tenance required urgently.
No start in approx. XXX
km (red display message) *A
malfunction has occur red in the high-voltage batter y.
It will no lon ger be possible tostart the electric drive system aTer the distance displa yed has been co vered. #
Have the necessary maintenance workon the high-voltage battery car ried out immediately at a quali/ed specialist
wo rkshop. Displ
aymessages and warning/indicator lamps
375
375

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High-voltage battery main-
tenance required urgently.
Without engine restart, con-
sult workshop *A
malfunction has occur red in the high-voltage batter y.
It will no lon ger be possible torestart the drive system once it has been switched o.. #
Do not switch o. the drive system; drive on tothe nearest quali/ed specialist workshop. V V
ehicle
ehicle Displa
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d
Vehicle is operational
Switch off ignition before
exiting *Y
ou are leaving theve hicle in a ready-to-drive state. #
Get out of theve hicle, secure it against rolling away and take theke y with you. #
Ifyo u do not lea vetheve hicle, switch o. the electrical consumers, e.g. the seat heating. Otherwise, the 12‑V bat-
te ry may dischar geand starting the engine may be possible only with the help of a second battery (jump start).
ï
Check trailer hitch
lock (white display message) *T
he trailer hitch is not operational during a jou rney with a trailer. &
W WARNING
ARNING 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 tra1c conditions. Do not continue driving. 376
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Display messages and
warning/indicator lamps