2020 MERCEDES-BENZ S-CLASS SALOON LONG clock

Even small amounts of
the wrong fuel
could result in damage tothe fuel sy stem
and the engine. The repair costs are high. #
Consult a qualified specialist workshop. #
Have the fuel tank and fuel lines
drained compl etely. *
NO
TEDama getothe fuel sy stem caused
by ove rfilled fuel tanks #
Only fill th e fuel tank until the pump
nozzle switches off.
If yo u ha veadded too much fuel because of a
defective filling pump, for ins tance: #
Do not switch the ignition on. #
Consult a qualified specialist workshop. *
NO
TEFuel may spr ayout when you
re mo vethe fuel pump nozzle #
Only fill th e fuel tank until the pump
nozzle switches off. Re
quirements:
R The vehicle is unloc ked.
% Do not get into theve hicle again during the
re fuelling process. Otherwise, electros tatic
ch arge could build up again.
Obser vethe no tes on operating fluids and fuel.
The recommended octane number foryo ur vehi‐
cle can be found on the information label in the
fuel filler flap. 1
Fuelfiller flap
2 Brac ketfo r fuel filler cap
3 Tyre pressure table
4 QR code forre scue card
5 Fuel type #
Press the back area of fuel filler flap 1. #
Turn the fuel filler cap anti-clockwise and
re mo veit. 208
Driving and parking

#
Insert the fuel filler cap from abo veinto
brac ket2. #
Comp lete ly inse rtthe pump nozzle into the
ta nk filler nec k,hook in place and refuel. #
Only fill th e fuel tank until the pump nozzle
switches off.
% Vehicles with a diesel engine: theta nk
fi ller neck is designed forre fuelling at diesel
fi lling pumps.
% Vehicles with a diesel engine: whenthe
fuel tank is compl etely em pty, top up with at
least 5 litres of diesel.
% Vehicles with a diesel engine: use afiller
neck with a lar gediame terfo rve hicles with
a diesel engine when topping up fuel from a
fuel can. Otherwise, thefiller neck cannot
slide into theta nk. #
Replace the cap on thefiller neck and turn
clockwise until it engages audibl y.#
Close fuel filler flap 1. Ad
Blue ®
(vehicles with a diesel engine on ly) Note
s onrefilling AdBlue ®
Ad Blue ®
is a wate r-soluble fluid forth e NOx
ex haust gas af tertre atment of diesel engines. In
order forth eex haust gas af tertre atment tofunc‐
tion proper ly, only use AdBlue ®
in accordance
wi th ISO 222 41 .
Ad Blue ®
is ch aracterised bythefo llowing:
R non-t oxic
R colourless and odourless
R non-flammable
If yo u open theAd Blue ®
tank, small amounts of
ammonia vapour may be released. Only fill the
Ad Blue ®
tank in well-ventilated areas.
Do not let AdBlue ®
come into contact wi thskin,
ey es or clo thes. Keep AdBlue ®
aw ay from chil‐
dren.
Do not ingest AdBlue ®
. If AdBlue ®
is swallo wed,
immediately rinse your mouth out thoroughly.
Drink plenty of water.Seek medical attention at
once. Obser
vethe no tes on operating fluids
(/ page 480).
Ad Blue ®
is available here:
R AdBlue ®
can be topped up byfast service at
a qu alified specialist workshop, e.g. a
Mercedes-Benz Service Centre.
R AdBlue ®
is available at many filling stations
from AdBlue ®
filling pumps.
R Alternativel y,Ad Blue ®
is available at qualified
specialist workshops, e.g. Mercedes-Benz
Service Centres, and at many filling stations
in Ad Blue ®
re fill canis ters or AdBlue ®
re fill
bottles.
% Ensure the connection between there fill
con tainer and vehicle filler neck does not
drip. Driving and parking
209

Opening
theAd Blue ®
filler cap #
Press on the back area of fuel filler flap 1. #
Turn AdBlue ®
filler cap 2anti-clockwise and
re mo veit.
% You can also store theAd Blue ®
filler cap in
th e fuel filler cap holder in the fuel filler flap
hin gearm. To
p up AdBlue ®
Mercedes-Benz recommends topping up
Ad Blue ®
at a filling pump. If no AdBlue ®
filling
pump is available, you can also top up AdBlue ®
using a cani ster. #
Screw onthefast ener of AdBlue ®
re fill canis‐
te r4. #
Screw disposable hose 3onto the opening
of Ad Blue ®
re fill canis ter4 until hand-tight. #
Screw disposable hose 3onto thefiller
neck of theve hicle until hand-tight. #
Lift up and tip AdBlue ®
re fill canis ter4.
The filling process stops when theAd Blue ®
ta nk is compl etely full.
Ad Blue ®
re fill canis ter4 can be remo ved
when it has been only partially em ptied. #
Unscr ew and close disposable hose 3and
Ad Blue ®
re fill canis ter4 inreve rse order. #
Replace AdBlue ®
filler cap 2and turn it
clockwise until it audibly engages. #
Close fuel filler flap 1. #
Swit chon the ignition for at least 60 sec‐
onds.
% Ifth e engine could not be star ted due tothe
Ad Blue ®
tan k being empty, it can take up to
60 seconds forth eto p up tobe de tected. #
Start theve hicle. Driving and parking
211

The
following information is displa yed in the
driver display:
R The length of the journey since the last break
R The attention le vel de term ined byATTENTION
ASSIS T:
- The more segments 2ofthe circle dis‐
pla yed, the higher the de tected attention
le ve l.
- Fewe r segments 2are displa yed in the
circle as the attention le vel decreases.
R Microsleep de tection 1status:
- Deactivated: display 1is hidden. -
Activated but not operational: display 1
is gr ey.
- Activated and operational: display 1is
green.
If AT TENTION ASSIST is unable tocalculate the
attention le vel and cannot issue a warning, the
System suspended messageappears.
If th e sy stem, which uses the driver camera,
de tects indicators of microsleep, theATTEN-
TION ASSIST Microsleep Take a break! warning
message appears in the driver display and a
wa rning tone sounds simultaneously. This warn‐
ing message must be con firm ed byTouch Con‐
trol. It is recommended that you take a break
immediatel y.
If a warning is given in the driver displa y,the
multimedia sy stem of fers to sear chfor a rest
area. You can select a rest area and start naviga‐
tion tothis rest area.
AT TENTION ASSIST with microsleep de tection is
acti vated automatically when the engine is
re star ted. The last selected sensitivity le vel
re mains stored. Sy
stem limits
AT TENTION ASSIST is active in the 60 km/h to
200 km/h speed range.
The microsleep de tection function is available at
a speed of 20 km/h and abo ve.
Pa rticularly in thefo llowing situations, ATTEN‐
TION ASSIST only functions in a restricted man‐
ner and warnings may be dela yed or not occur:
R Ifyo u ha vebeen driving for less than appr ox‐
imately 30 minutes.
R Ifth ero ad condition is poor (une venro ad
sur face or po tholes).
R Ifth ere is a strong side wind.
R Ifyo u adopt a sporty driving style (high cor‐
nering speeds or high rates of acceleration).
R Ifth eSt eering Assist function of Active Dis‐
ta nce Assi stDISTRONIC is acti ve.
R Ifth e clock is set tothe incor rect time.
R Ifyo uch ange lanes and vary your speed fre‐
qu ently In active driving situations. Driving and parking
227

#
Toselect a menu item or entr y:tap on a
symbol or an ent ry. #
Toincrease the map scale: tap twice
qu ickly with one finger. #
Toreduce the map scale: tap with two fin‐
ge rs. #
Toenter characters with th eke ypad: tap
on a button. #
Tonavigate in menus: swipe up, down, left
or right. #
Touse handwriting toenter characters:
write thech aracter with one finger on the
to uchsc reen. #
Tozoom in and out of the map: movetwo
fi ngers toget her or apart. #
Toenlar georreduce the size of a section
of a website: movetwo fingers toget her or
apart. #
Toturn the digital map: turn anti-clockwise
or clockwise using two fingers. #
Tomo vethe digital map: touch the
to uchsc reen and mo veyour finger in any
di re ction. #
Tosave the destination in the digital
map: touch theto uchsc reen and hold until a
message is shown. #
Tocall up the home screen: swipe up with
th re efingers in an application. #
Toset thevo lume on a scale: touch the
to uchsc reen and mo vethefinger tothe left
or right. #
Tocall up a global menu in the applica‐
tions: touch theto uchsc reen and hold until
th eOptions menu appears. Fu
nction of the MBUX Voice Assistant Using
the MBUX Voice Assis tant, vehicle func‐
tions and various areas of the MBUX multimedia
sy stem can be operated by voice input. The
MBUX Voice Assis tant is operational appr ox‐
imately half a minute af ter switching on the igni‐
tion and can be operated from all seats. Further information and
examples of voice commands
can be found in the Digital Owner's Manual.
Yo u can use the MBUX Voice Assis tant tooper‐
ate thefo llowing functions depending on the
ve hicle equipment:
R Telephone
R Text messa geand e-mail
R Navigation
R Radio, media, TV
R Vehicle functions
R Online functions
Fu ll functionality of thevo ice control sy stem is
only available foryo u with activation of online
vo ice control . Conducting a dialogue
St
arting a dialogue #
Say "Hey Mercedes" toactivate the MBUX
Vo ice Assis tant. Voice activation must be
switched on in the multimedia sy stem.
or MBUX multimedia sy
stem 301

#
Turn cap 1anti-clockwise and remo veit. #
Top up the engine oil. #
Replace cap 1and turn it clockwise until it
engages. #
Check the oil le vel again (/ page 350). Checking
the coolant le vel &
WARNING Risk of bu rns from hot com‐
ponent parts in the engine compartment
Cer tain component parts in the engine com‐
partment can be very hot, e.g. the engine,
th e cooler and parts of theex haust sy stem. #
Allow the engine tocool down and only
to uch co mponent parts described in
th efo llowing. &
WARNING Risk of scalding from hot
coolant
If yo u open the cap, you could be scalded. #
Let the mo tor cool down before opening
th e cap. #
When opening the cap, wear pr otective
gl ove s and saf etygl asses. #
Open the cap slowly torelease pres‐
sure. #
Only ha vethe coolant checked or refilled at a
qu alified specialist workshop. To
pping up the windsc reen washer sy stem &
WARNING Risk of bu rns from hot com‐
ponent parts in the engine compartment
Cer tain component parts in the engine com‐
partment can be very hot, e.g. the engine,
th e cooler and parts of theex haust sy stem. #
Allow the engine tocool down and only
to uch co mponent parts described in
th efo llowing. &
WARNING ‑ Risk of fire and injury due to
windscreen washer concentrate
Wi ndsc reen washer concentrate is highly
fl ammable. It could ignite if it comes into
con tact wi thhot engine component parts or
th eex haust sy stem. #
Make sure that no windsc reen washer
concentrate spills out next tothefiller
opening. 352
Maintenance and care

4MATIC
vehicles #
Make sure that the front and rear axles come
to rest on the same transpor tation vehicle.
* NO
TEDama getothe driv etra in due to
incor rect positioning #
Do not position theve hicle abo vethe
connection point of the transport vehi‐
cle. To
wing eyesto rage location To
wing eye1 is located under the boot floor.
Depending on theve hicle equipment, theto wing
ey e may be located at ano ther position in the
boot. Installing
theto wing eye #
Press the mark on co ver1 inwa rds and
re mo ve. #
Screw intheto wing eyeclockwise as far as it
will go and tighten.
Ve hicles with a trailer hitch: vehicles with a
trailer hitch do not ha veare ar brac ketfo rthe Breakdown assis
tance 377

*
NO
TEVehicle damage from the jack If
yo u do not position the jack cor rectly at
th e appropriate jack support point of the
ve hicle, the jack could tip over with theve hi‐
cle raised. #
The jack is designed exclusively for
jacking up theve hicle at the jack sup‐
port points. #
Take thera tchet ring spanner out of the tyre-
ch ange tool kit and place it on the he xagon
nut of the jack so that the letters "AUF" are
visible. #
Position support 2of jack 4on jack sup‐
port point 1. #
Turn ratchet ring spanner 3clockwise until
jack support 2sits comple tely on ja cksup‐
port point 1and the base of the jack lies
eve nly on the ground. #
Continue toturn ratchet ring spanner 3
until the tyre is raised a maximum of 3 cm
off the ground. #
Loosen and remo vethe wheel (/ page 394). Re
moving a wheel Re
quirements:
R The vehicle is raised.
When changing a wheel, avoid applying any force
to the brake discs, as this could impair the le vel
of comfort when braking.
* NO
TEDama getothre ading from dirt on
wheel bolts #
Do not place wheel bolts in sand or on
a dirty sur face. #
Unscr ew the uppermost wheel bolt com‐
ple tely. 394
Wheels and tyres