2018 MERCEDES-BENZ S-CLASS SEDAN warning

&WARNING Risk of injury from usingthe
windshield wipers while the engine hood
is open
When the engine hood is open and the wind‐
shield wipers are set in motion, you can be
trapped bythe wiper linkage.
#Alw ays switch off the windshield wipers
and ignition before opening the engine
hood.
Plug-in hybrid: obser vethe no tes in the Supple‐
ment. Otherwise, you may not recognize dan‐
ge rs.
#To open: pull lever1 torelease the engine
hood.#Push hood catch 1upwards and lift the
hood byappr oximately 15in (40 cm).
#Toclose: lowe rth e hood and let it fall from a
height of appr oximately 8 in (20 cm).
#Ifth e hood can still be lif ted slightl y,open
th e hood again and close it with a little more
fo rc e until it engages cor rectl y.
380
Maintenance and care

Engine oil
Checkingthe engine oil le vel using the oil
dip stick (S 450, S 450 4MATIC)
&
WARNING Risk of burn s 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.
#Let the engine cool down and only
to uch the component parts described
as follo ws .
Plug-in hybrid: obser vethe no tes in the Supple‐
ment. Otherwise, you may not recognize dan‐
ge rs.
Depending on the engine, the oil dipstick may be
ins talled in the engine compartment in dif fere nt
locations.
Wa iting time before checking the oil le vel:
REngine at normal operating temp erature: five
minutes.
#Pa rk theve hicle on a flat sur face.
#Re mo veoil dipstick 1and wipe off.
#Slowly slide oil dipstick 1into the guide
tube tothestop, and take it out again af ter
appr oximately thre e seconds.
ROil le vel is cor rect: oil le vel is between 2
and 3.
ROil le velto o low: oil le vel is at 3or
belo w.
ROil le velto o high: oil le vel is abo ve2.
#Ifth e oil le vel is too lo w,add 1.1 US qt (1 l) of
engine oil.
#If th e engine oil le vel is too high, ha vethe
exc ess engine oil remo ved as soon as possi‐
ble at a qualified specialist workshop.
Checking the engine oil le vel using the on-
board compu ter (e xcept S 450, S 450
4MATIC)
The engine oil le vel is de term ined during driving.
The oil le vel display is only available af ter a driv‐
ing time of up to30 minutes and if the ignition is
switched on, depending on the driving profile.
It is not possible tocor rectly measure the oil
le ve l if:
RThe vehicle is not le vel during the measuring
process.
RThe engine hood was pr eviously opened.
The engine must be restar ted and the engine oil
le ve l will be de term ined again during driving.
Maintenance and care 381

On-board computer:
,6HUYLFH.(QJLQH 2LO /HYHO
Yo u will see one of thefo llowing display
messa ges in the multifunction displa y:
#0HDVXULQJ (QJLQH 2LO /HYHO: measurement
ofthe oil le vel is not yet possible. Repeat the
re qu est af ter a maximum of 30 minutes' driv‐
ing.
#(QJLQH 2LO /HYHO 2. andthe bar display for
indicating the oil le vel in the multifunction
display is green and is between "min" and
"max": the oil le vel is cor rect.
#(QJLQH 2LO /HYHO $GG  O andthe bar display
fo r indicating the oil le vel in the multifunction
display is orange and is below "min": add
1. 1 US qt (1 l) of engine oil.
#5HGXFH (QJLQH 2LO /HYHO andthe bar display
fo r indicating the oil le vel in the multifunction
display is orange and is abo ve"max ": drain
off theexc ess engine oil. Consult a qualified
specialist workshop.
#)RU (QJLQH 2LO /HYHO 6ZLWFK ,JQLWLRQ 2Q :
switch on the ignition tocheck the engine oil
le ve l.
#(QJLQH 2LO /HYHO 6\VWHP ,QRSHUDWLYH: sensor
defective or not connec ted. Consult a quali‐
fi ed specialist workshop.
#(QJLQH 2LO /HYHO 6\VWHP &XUUHQWO\ 8QDYDLO:
close the engine hood.
Ad ding engine oil
&
WARNING Risk of burn s 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.
#Let the engine cool down and only
to uch the component parts described
as follo ws .
&
WARNING Risk offire and injury from
engine oil
If engine oil comes into con tact wi thhot
component parts in the engine compart‐
ment, it may ignite.
#Make sure that no engine oil is spilled
next tothefiller opening.
#Allow the engine tocool off and thor‐
oughly clean the engine oil from compo‐
nent parts before starting theve hicle.
* NO
TEEngine damage causedbyan
incor rect oil filter, incor rect oil or addi‐
tives
#Do not use engine oils or oil filters
which do not cor respond tothe specifi‐
cations explicitly prescribed forth e
service inter vals.
#Do not alter the engine oil or oil filter in
order toachie velonger change inter vals
th an prescri bed.
#Do not use additives.
382
Maintenance and care

#Follow the instructions in the service
inter val display rega rding the oil
ch ange.
* NO
TEDama gecaused bytopping up too
much engine oil
Ad ding too much engine oil can cause dam‐
age tothe engine or the catalytic con verter.
#Ha ve excess engine oil remo ved at a
qu alified specialist workshop.
#Tu rn cap 1counter-clockwise and remo ve
it.
#Ad d engine oil.
#Replace cap 1and turn it clockwise as far
as it will go.
#Check the oil le vel again (→page 381).
Checking coolant le vel
&
WARNING Risk of burn s 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.
#Let the engine cool down and only
to uch the component parts described
as follo ws .
&
WARNING Danger of burn s from hot
coolant
The engine cooling sy stem is pressurized,
particularly when the engine is warm. If you
open the cap, you could be scalded byhot
coolant spr aying out.
#Let the mo tor cool down before opening
th e cap.
#When opening the cap, wearglove s and
pr otective eyew ear.
#Slowly turn the cap half a turn toallow
pressure toescape.
Maintenance and care 383

#Park theve hicle on a flat sur face.
#Check the coolant temp erature display in the
instrument clus ter.
The coolant temp erature must be below
15 8 °F (70 °C).
#Slowly turn cap 1counter-clockwise to
re lie ve ove rpressure.
#Continue turning cap 1counter-clockwise
and remo veit.
The coolant le vel is cor rect:
RIfth e engine is cold, up tomar ker bar 2
RIfth e engine is warm, up to0.6 in (1.5 cm)
ove r mar ker bar 2
#If necessar y,add coolant that has been
appr ovedby Mercedes-Benz.
RFurther information on coolant (→page 451)
Ad ding washer fluid tothe windshield
wa sher sy stem
&
WARNING Risk of burn s 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.
#Let the engine cool down and only
to uch the component parts described
as follo ws .
&
WARNING Danger of burn s when open‐
ing the hood
If yo u open the hood when the engine has
ove rheated or during a fire inthe engine
compartment, you could come into contact
with hot gases or other escaping operating
fl uids.
#Before opening the hood, allow the
engine tocool down.
#Intheeve nt of a fire inthe engine com‐
partment, keep the hood closed and
call thefire service.
&
WARNING ‑ Risk of fire and injury from
windshield washer concentrate
Wi ndshield 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 windshield washer
concentrate spills out next tothefiller
opening.
384 Maintenance and care

#Remo vecap 1bytheta b, place on the edge
of thefiller opening and engage in place.
#Ad dwa sher fluid.
Cleaning and care
Informa tiononwashing theve hicle in a car
wa sh
&
WARNING Risk of accident due to
re duced braking ef fect af terwa shing the
ve hicle
The braking ef fect is reduced af terwa shing
th eve hicle.
#Afterth eve hicle has been washed,
brake carefully while paying attention to
th e traf fic conditions until the braking
ef fect has been ful lyrestored.
To avo id damage to yourvehicle when using a
car wash, ensure thefo llowing beforehand:
RAc tive Dis tance Assist DISTRONIC and the
HOLD function are deactivated.
RThe 360° Camera or there ar view camera is
switch ed off.
RThe side windo wsand sliding sunro of are
comple tely closed.
RThe blow erforth eve ntilation/heating is
switched off.
RThe windshield wiper switch is in position
g.
RIn car washes with a towing mechanism: neu‐
tral iis engaged.
RThe SmartK eyis at a dis tance of at least
10 ft(3 m) away from theve hicle, otherwise
th e trunk lid could open unintentionall y.
% If, af terth e car wash, youre mo vethewa x
from the windshield and wiper rubber, this
will pr event smearing and reduce wiper
noise.
Information on using a po werwa sher
&
WARNING Risk of accident when using
high-pressure cleaning equipment wi th
ro und-spr aynozzles
The wate r jet from a round-spr aynozzle (dirt
grinder) may cause damage totires and sus‐
pension components that is not visible.
Mainte nance and care 385

Notes on care of vehicle parts
&
WARNING Risk of entrapment if the
windshield wipers are switch ed on while
th e windshield is being cleaned
If th e windshield wipers are set in motion
while you are cleaning the windshield or
wiper blades, you can betrapped bythe
wiper arm.
#Alw ays switch off the windshield wipers
and the ignition before cleaning the
windshield or wiper blades.
& WARNING Risk of burn s fromtailpipes
and tailpipe trim
The tailpipe and tailpipe trim can become
ve ry hot. If you come into contact withth ese
parts of theve hicle, you could burn yourself.
#Alw ays be particular lycareful around
th eta ilpipe and theta ilpipe trim.
#Allow theve hicle parts tocool down
before youto uch them.
Obser vethefo llowing information:
Information on cleaning and car eAvoiding vehicle damage
Wheels/rims Usewate r and acid-free wheel cleaners.
RDo not use acidic wheel cleaners toremo vebrake dust.
This could damage wheel bolts and brake components.
RTo avoid cor rosion of the brake discs and brake linings,
drive theve hicle for a few minutes af ter cleaning before
parking it. The brake discs and brake linings warm up and
dry out.
Wi ndo ws
Cleanthe windo wsonthe inside and outside using a damp
clo thand cleaning products recommended byMercedes-
Benz. Do not use dry clo
ths, abrasive products or cleaning agents
containing sol vents toclean the inside of the windo ws.
Maintenance and care 389

Information on cleaning and careAvoiding vehicle damage
Wi per blades
Fold out the wiper blades and clean them using a damp clo th.D o not clean the wiper blades too of ten.
Ex terior lighting
Cleanthe lenses with a wet sponge and mild de terg ent, e.g.
car shampoo. Only use cleaning agents or cleaning clo
thsth at are suitable
fo r plast ic lenses.
Sensors Cleanthe sensors in the front and rear bumpers and in the
ra diator grill with a soft clo thand car shampoo. When using a high-pressure
water jet, maintain a minimum
dis tance of 11.8 in (30 cm).
Re ar view camera
and 360° Camera
ROpen the camera co ver with the multimedia sys‐
te m(→page 226) .
RUse clear water and a soft clo thtoclean the camera lens. Do not use a high-pressure
water jet.
Ta ilpipes
Clean with cleaning agents recommended byMercedes-Benz,
particular lyin the winter and af terwa shing theve hicle. Use acid-free cleaning agents.
Note
s on care of the interior
&
WARNING Risk of injury from plastic
parts breaking off af terth e use of sol‐
ve nt-based care products
Ca reand cleaning products con taining sol‐
ve nts can cause surf aces inthe cockpit to
become porous.
When the airbags are deplo yed, plastic parts
may break away.
#Do not use any care or cleaning prod‐
ucts containing sol vents toclean the
cockpit.
& WARNING Risk of injury or death from
bleached seat belts
Bleaching or dyeing seat belts can se verely
we aken them.
This can, forex ample, cause seat belts to
te ar or fail in an accident.
#Ne ver bleach or dye seat belts.
390
Maintenance and care