jump start MERCEDES-BENZ S-CLASS SALOON LONG 2020 Owners Manual

Obser
vethis Owner's Manual.
Obser vethefo llowing if you do not intend touse
th eve hicle over an extended pe riod of time:
R Activate standby mode.
R Alternatively: connect the battery toa bat‐
te ry charge r appro vedby Mercedes-Benz or
consult a qualified specialist workshop to
disconnect the batter y. Note
s onstarting assi stance and charging
th e12 V battery Ve
hicles with a lithium-ion battery
When charging the battery and during starting
assis tance, al ways use the jump-s tart connec‐
tion point in the engine compartment. *
NO
TEDama getothe battery from over‐
vo ltage When
charging using a bat tery charge r with‐
out a restriction of the maximum charging
vo ltage, the battery or the on-board electron‐
ics can be damaged. #
Only use battery charge rs with a maxi‐
mum charging voltage of 14.8 V. All
other vehicles
When charging the battery and during starting
assis tance, al ways use the jump-s tart connec‐
tion point in the engine compartment.
* NO
TEDama getothe battery from over‐
vo ltage When
charging using a bat tery charge r with‐
out a restriction of the maximum charging
vo ltage, the battery or the on-board electron‐
ics can be damaged. #
Only use battery charge rs with a maxi‐
mum charging voltage of 14.8 V. &
WARNING Risk ofexplosion from hydro‐
ge nga s igniting
There is a danger of hydrogen gas igniting
when charging the battery if there is a short
circuit or spar ksstart toform. #
Make sure that the positive term inal of
th e connected battery does not come
into conta ct withvehicle parts. #
Never place me tal objects or tools on a
batter y. #
The described order of the battery
clamps must be obser ved when con‐
necting and disconnecting the batter y. #
When giving starting assis tance, al ways
make sure that you on lyconnect bat‐
te ry term inals with identical polarity. #
During starting assis tance, you must
obse rveth e described order for con‐
necting and disconnecting the jump
lead. #
Do not connect or disconnect the bat‐
te ry cla mp s while the engine is running. 37 0
Breakdown assis tance

&
WARNING Risk ofexplosion during
ch arging process and starting assis tance
During thech arging process and starting
assis tance, the battery may release an explo‐
sive gas mixture. #
Avoid fire , naked flames, creating
spar ksand smoking. #
Make sure there is suf ficient ventila‐
tion. #
Do not lean over a batter y. &
WARNING Risk ofexplosion from a fro‐
zen battery
A dischar ged battery may freeze at temp era‐
tures slightly abo veor below freezing point.
During starting assis tance or battery charg‐
ing, bat tery gas can be released. #
Alw ays allow a battery tothaw before
ch arging it or per form ing starting assis‐
ta nce. If
th e indicator/warning lamps in the instrument
clus ter do not light up at low temp eratures, it is
ve ry likely that the dischar ged battery has fro‐
zen. In this case you may neither jump-s tart the
ve hicle nor charge the batter y.
The service life of a battery that has been
th awe d may be dramatically shor tened. The
st arting characteristics may be impaired, espe‐
cially at low temp eratures.
It is recommended that you ha veathaw ed bat‐
te ry checked at a qualified specialist workshop.
All vehicles
* NO
TEDama gecaused bynumerous or
ex tended attem ptsto start the engine Nume
rous or extended attem ptsto start the
engine may damage the catalytic con verter
due tonon-combu sted fuel. #
Avoid numerous and extended attem pts
to start the engine. Obser
vethefo llowing points during starting
assis tance and when charging the battery:
R Only use undamaged jump lead/charging
cables with a suf ficient cross-section and
insula tedte rm inal clamps.
R Non- insulated parts of thete rm inal clamps
must not come into con tact wi thother me tal
parts while the jump lead/charging cable is
connected tothe battery/jump-s tart connec‐
tion point.
R The jump lead/charging cable must not
come into contact wi thany parts which may
mo vewhen the engine is running.
R Alw ays make sure that nei ther you nor the
battery is elect rostatically charge d.
R Keep away from fire and naked flames.
R Do not lean overth e batter y.
Obser vethe additional following points when
ch arging the battery:
R Only use battery charge rs tested and
appr oved for Mercedes-Benz.
R Read the battery charge r's operating instruc‐
tions before charging the batter y. Breakdown assis
tance 371

Obser
vethe additional following points during
st arting assistance:
R Starting assis tance may only be pr ovided
using vehicles, batteries or other jump start
devices with a nominal voltage of 12V.
R The vehicles must not touch.
R Vehicles with a petrol engine: jump-start
th eve hicle only when the engine and exhaust
sy stem are cold. St
arting assi stance and charging the12 V
battery Preparing
starting assi stance/the charging
process #
Secure theve hicle byapplying the electric
parking brake. #
Select transmission position j.#
Switch off the ignition and all electrical con‐
sumers. #
Open the bonn et. #
Open co ver1. #
Slide pr otective co ver2 of positive contact
3 onthe jump-s tarting connection point in
th e direction of the ar row. St
arting assi stance #
Connect the positive conta cts oftheve hicles
with the jump lead. Start with your ow nve hi‐
cle firs t. #
Start the engine of the donor vehicle and run
it at idling speed. #
Connect negative term inal 4ofthe donor
battery tothe ear thpoint of your vehicle 372
Breakdown assis tance

using
the jump lead. Start with the donor
ve hicle firs t. #
Start the engine of your ow nve hicle. #
Let the engines runfo r se veral minutes. #
Before disconnecting the jump leads, switch
on an electrical consumer in your ow nve hi‐
cle, e.g. there ar wind owheater or the light‐
ing.
When starting assistance has finished: #
Firstremo vethe jump lead from the ear th
point of your ow nve hicle and the negative
te rm inal of the donor batter y,then remo ve
th e jump lead from the positive conta cts of
bo th vehicles. Alw aysst art with your own
ve hicle firs t. #
Close pr otective co ver2 of positive contact
3 and close co ver1.
Fu rther information can be obtained at a quali‐
fi ed specialist workshop. Charging
the12 V battery #
Connect the positive conta cts oftheve hicle
and thech arge r with thech arging cable.
St art with theve hicle firs t. #
Connect the negative conta ct ofthech arger
and ear thpoint 4ontheve hicle with the
ch arging cable. Start with thech arge rfirs t. #
Start thech arging process.
When thech arging process is comple te: #
Remo vethech arging cable from ear thpoint
4 ontheve hicle and the negative conta ct
of thech arge rfirs t and then from the posi‐
tive conta cts ontheve hicle and charge r.
Alw aysst art with theve hicle firs t. #
Close pr otective co ver2 of positive contact
3 and close co ver1. Re
placing the 12V battery #
Obser vethe no tes on the12 V battery
(/ page 368).
Mercedes-Benz recommends that you ha vethe
12 V battery replaced at a qualified specialist wo
rkshop, e.g. at a Mercedes-Benz Service
Centre.
Obser vethefo llowing no tes if youwa ntto
re place the battery yourself:
R Alw aysre place a faulty bat tery with a battery
which meets the specific vehicle require‐
ments.
The vehicle is equipped with an AGMtech nol‐
ogy battery (Absorbent Glass Mat) or a li th‐
ium-ion batter y.Fu llve hicle functionality is
only guaranteed with an AGM battery or lith‐
ium-ion batter y.Fo r saf etyre asons,
Mercedes-Benz recommends that you on ly
use bat teries which ha vebeen tested and
appr ovedfo ryo ur vehicle byMercedes-Benz.
R Carryove r de tach able parts, such as vent
hoses, elbow fittings or term inal co vers from
th e battery being replaced.
R Make sure that theve nt hose is al ways con‐
nected tothe original opening on the side of
th e batter y.
Fit any existing or supplied cell caps.
Otherwise, gases or battery acid could
escape. Breakdown assis
tance 373

Display messages
Possible causes/consequences and M
MSolutions #
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 (/ page372).
The 48 V bat tery isch arge 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. Ty
re pressure moni tor Display messages
Possible causes/consequences and M
MSolutions
Tyre press. monitor cur-
rently unavailable *T
here is inter fere nce from a po werful radio signal source. As a result, no signals from the tyre pressure sensors are
being recei ved. The tyre pressure monitoring sy stem is temp orarily una vailable.
The tyre pressure monitoring sy stem will restart automatically as soon as the cause has been rectified. #
Drive on.
Tyre press. monitor inoper-
ative *T
he tyre pressure monitoring sy stem is malfunctioning. &
WARNING Thereis a risk of an accident if the tyre pressure monitoring sy stem is malfunctioning
The tyre pressure monitoring sy stem cann otissue a warning if there is pressure loss in one or more of the
tyres.
Ty res with insuf ficient tyre pressure may impair the driving characteristics as well as steering and braking. Display messages and
warning/indicator lamps 541

To
pographical compensation.................1 57
Interior lighting Adjusting................................................ 161
Ambient lighting.................................... 16 2
Re ading lam p......................................... 161
Switch-off del aytime............................. 16 4
Interior pr otection
Fu nction................................................ 105
Priming/deactivating.............................1 06
Internet radio
see TuneIn
Ionisation Activating/deactivating (MBUX mul‐
timedia sy stem).....................................1 76
iPhone ®
see Smartphone integ ration
ISOFIX child seat anchor
Seats suitable for attaching..................... 64
ISOFIX child seat securing sy stem
Fitting...................................................... 66 J
Jack Declaration of con form ity....................... .31
St orage location.................................... 391
Jump-start connection General no tes........................................3 70 K
Key Acoustic locking verification signal.......... 78
Battery.................................................... 79
Deacti vating a function............................ 78
Emergency key........................................ 79
Energy consum ption................................ 78
Fe atures.................................................. 77
Ke yring attachment................................ 79
Overview................................................. 77
Problem................................................... 81
Un locking setting.................................... .78
KEYLESS-GO Deactivating a function........................... .78
Locking/unlocking theve hicle................83
Problem................................................... 84
Un locking setting.................................... .78Kickd
own
Using.....................................................2 05
Knee airbag................................................. .47 L
Lamp see In terior lighting
Lamps (driver's display) see Indicator/warning lamp
Lane de tection (au tomatic)
see Active Lane Keeping Assist
Lane Keeping Assist
see Active Lane Keeping Assist
Le vel control sy stem
see AIRMATIC
Light adju stment
Low beam (d riving abroad). ................... 15 2
Light switch Overview............................................... 15 2
Lighting see In terior lighting
see Lights Index
585

Sound
PRE-SAFE ®
Sound................................... 55
Wheels and tyres...................................3 83
Sound menu Functions overview...............................3 46
Spare wheel see Emer gency spa rewheel
Specific absor ption rate ............................. 26
Speed limit for winter tyres
Setting................................................... 229
St andby mode
Ac tivating/deactivating......................... 219
Fu nction................................................. 219
St anding lights.......................................... 15 2
St art-off assi st
see Optimised acceleration
St art/s top button
Pa rking theve hicle................................2 12
St arting theve hicle...............................1 89
Switching on the po wer supply or
ignition.................................................. 188
St art/s top function
see ECO start/ stop function St
arter battery
Charging (Remo teOnline)...................... 19 0
St arting assi stance
see Jump -sta rt connection
St arting the engine
see Vehicle
St arting-o ffaid
see Hill Start Assist
St ationary heater/ventilation
Displ ays (remo tecontrol)...................... 183
Problems (remo tecontrol)..................... 184
Re placing the battery (remo tecon‐
trol)....................................................... 183
Setting (MBUX multimedia sy stem)....... 182
Setting (remo tecontrol)........................ 182
Switching on/off (control panel )............ 181
ST EER CONT ROL
Fu nction/no tes..................................... 224
Ste ering
Re ar axle steering..................................1 95
Ste ering wheel
Ad justing (electrically).......................... .127
Car e...................................................... 358
Oper ating the memory function.............1 31St
eering wheel heater............................1 28
Ste ering wheel gearshift paddles............ 204
Ste ering wheel heater
coupling toseat heating........................ 12 8
Switching on/of f................................... 12 8
St ow age areas
see Stow age space
St ow age comp artment
Handset (rear)....................................... 137
Lu ggage net hooks................................. 137
St ow age comp artments
see Stow age space
St ow age space
Armrest................................................. 13 6
Centre console..................................... .136
Door...................................................... 13 6
Glo vecompa rtment............................... 13 6
USB ports.............................................. 13 6
Sulphur content......................................... 481
Sur round View
see 360° Camera Index
595