MERCEDES-BENZ S-CLASS SALOON LONG 2021 Owners Manual

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Pre-entry climate control
via key inoperative High-
voltage battery low *T
hecharge ofthe high-voltage battery is too lo w.Pre-entry climate control 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. Hybr Hybr
id syst
id syst em
em Displa
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Towing not permitted See
Owner's Manual *T
he drive system is malfunctioning. #
Have theve hicle transpo rted only using a transpor ter or trailer (/ page 451).508 508
Display messages and
warning/indicator lamps

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ò
Acoustic presence indica-
tor inoperative *T
he sound generator (acoustic vehicle warning system) is malfunctioning. No driving noises are being produced. The
ve hicle may not be heard by otherroad users. #
Drive with particular care. #
Consult a quali/ed specialist workshop.
è
Charger cable connected *Y
ou cannot pull away while thech arging cable is connected. #
Disconnect thech arging cable from theve hicle.
Not possible to unlock
charging cable See Own-
er's Manual *T
hecharging cable connector cann otbe remo ved from thech arging station's soc ket. #
Press the EMERGENCY OFF switch on thech arging station.
If th ech arging cable connector cann otbe remo ved aTer that: #
Request service personnel from the operator of thech arging station via the emer gency call button attached tothe
ch arging station or the emer gency call numbers.
Vehicle not currently being
charged Charging station
fault *A
malfunction has occur red in thech arging station or the RFID card is not recognised. #
Start thech arging process at a di.erent charging station.
or #
Have the RFID card checkedto ensure it is functioning. Display messages and
warning/indicator lamps
509 509

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Charging fault Please
change charging method
See Owner's Manual *A
temp orary malfunction has occur red in thech arging station. #
Wait until the malfunction has passed.
or #
Start thech arging process at a di.erent charging station.
AC charging inoperative
Consult workshop *T
hecharging process cann otbe star ted due toa malfunction. #
Consult a quali/ed specialist workshop.
DC charging inoperative
Consult workshop *T
hecharging process cann otbe star ted due toa malfunction. #
Consult a quali/ed specialist workshop.
Only electric drive availa-
ble Power limited *T
he fuel tank is em pty and the combustion engine is switched o.. The output of your vehicle is limi ted because you
are driving in elect ric mode. #
Refuel immedia tely.
Subse quentl y,there may be temp orary restrictions in theav ailability of elect ric mode over a driving distance of
50 km.
If th ere is fuel in theve hicle, there is a fault with the combustion engine. #
Consult a quali/ed specialist workshop.
"Electric" drive program
currently unavailable *T
hecharge leve l of the high-voltage battery is not su1cient forth e Electric drive prog ram.
Char gethe high-voltage battery (/ page 241).510 510
Display messages and
warning/indicator lamps

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Reduced drive system per-
formance See Owner's
Manual *T
he drive system switches toemer gency ope ration mode due toa malfunction. #
Drive on carefull y. #
Consult a quali/ed specialist workshop.
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.
Û
Malfunction Visit workshop *T
he drive system is malfunctioning. #
Consult a quali/ed specialist workshop. Displ
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Consult workshop without
changing the transmission
position *T
he transmission is malfunctioning. It is no lon ger possible tochange the transmission position. #
If transmission position his selected, consult a quali/ed specialist workshop and do not change the transmission
position. #
For all other transmission positions, park theve hicle safel y. #
Consult a quali/ed specialist workshop.
Û
Have high-voltage system
checked See Owner's Man-
ual *A
function restriction has occu rred in the drive system. #
Consult a quali/ed specialist workshop.
Preparing drive system… *The insulation of the drive system is being tested. This process can last for up to te n seconds.
Consult workshop without
starting the vehicle again *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.
d Malfunction *T
he drive system is malfunctioning. The output of your vehicle is restric ted. #
Consult a quali/ed specialist workshop. 512 512
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Stop Switch off the vehicle *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
Performance severely limi-
ted *T
he drive system is outside the normal operating temp erature range, e.g. due toextremely low or high outside temp er-
atures.
The output is se verely re stricted.
Once the operating temp erature of the drive system returns tonormal, the full output will be available again. The dis-
play message will disappear.
*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.
High-voltage battery mal-
function. No start in
approx. XXX km Consult
workshop (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.
It is still possible tostart the combustion engine. #
Have the necessary maintenance workon the high-voltage battery car ried out at a quali/ed specialist workshop. Displ
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High-voltage battery mal-
function. No start in
approx. XXX km Consult
workshop (red display mes-
sage) *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.
It is still possible tostart the combustion engine. #
Have the necessary maintenance workon the high-voltage battery car ried out immediately at a quali/ed specialist
wo rkshop.
High-voltage battery mal-
function. Consult work-
shop without starting the
vehicle again *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.
6 Please wait Depressurising
fuel tank *V
Vehicles wit ehicles wit h pe
h petr
trol engines:
ol engines: the pressure in the fuel tank is reduced before the fuel /ller 0ap is opened. The pressure
re duction can take up to15 minutes.
6 Fuel tank is depressurised
Ready for refuelling *V
Vehicles wit ehicles wit h pe
h petr
trol engines:
ol engines: the pressure in the fuel tank is released and the fuel /ller 0ap opens. 514
514
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warning/indicator lamps

V
V
ehicle
ehicle Displa
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he driver's displ ayis inoperative due toafa iled soTware update.
The display message will be shownevery time the engine is star ted. &
W
WARNING
ARNING Risk of accident if the driver display fails
If th e driver display has failed or is malfunctioning, function restrictions in systems releva nt tosaf ety cann otbe
de tected.
The operating saf ety of your vehicle may be impaired. #
Drive on carefull y. #
Have theve hicle checked immediately at a quali/ed specialist workshop. If
th e operating saf ety of your vehicle is impaired, park theve hicle immediately and safel y.Contact a quali/ed special-
ist workshop. &
W
WARNING
ARNING Risk of accident due tofailure of the driver display
In theeve ntthat the driver display fails or malfunctions, you will not recognise function restrictions a.ec ting sys-
te ms releva nt tosaf ety. This may impair ope rating saf ety. #
Park theve hicle safely as soon as possible and notify a quali/ed specialist workshop. Displ
aymessages and warning/indicator lamps
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If th e driver's display fails, you may not recognise function restrictions a.ec ting systems releva nt tosaf ety or the
speed displa y,forex ample. The operating saf ety of theve hicle may be impaired (/ page 382). #
Have theve hicle checkedby aqu ali/ed specialist workshop immediatel y.
d
Vehicle is operational
Switch off vehicle 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
Operation only possible in
transmission position P *T
he ball neck will not swivel because transmission position h,kor neutral iis selected. #
Depress the brake pedal. #
Engage park position j.
ï Trailer coupling in motion *T
he ball neck is retracting/extending.
Do not attem pttospeed up, slow down or initiate the swivel mo vement using your hand, foot or other aids. During the
swivel mo vement, do not couple a trailer.
When the ball neck has reached an operational position, the display message will disappear. 516 516
Display messages and
warning/indicator lamps

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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. #
Uncouple the trailer and secure it against rolling away. #
Initiate a new swivelling procedu reand do not re-couple the trailer until the display message disappears. #
Initiate a new swivel mo vement (/ page 337). #
When the display message disappears, couple up the trailer and drive on.
If th e display message does not disappear, the trailer hitch is malfunctioning and the ball neck is not loc ked. #
Do not couple up the trailer. Drive on without the trailer. No tethere duced ground clearance due tothe unloc ked
ball nec k. #
Consult a quali/ed specialist workshop.
*W hen theve hicle is stationary with a coupled trailer, the trailer hitch is not operational. #
Uncouple the coupled trailer and secure it against rolling away. #
If t
If the ball nec
he ball nec k has been re
k has been retr
tract
act ed:
ed: initiate a new swi vel mo vement (/ page 337).
The ball neck will engage vertically in the loc ked position and then engage beneath the bumper. Display messages and
warning/indicator lamps
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517