light MERCEDES-BENZ S CLASS 2018 Service Manual

R
Pull th e headphone band in th e direction of
th e ar row .
Indicator lamp 1
LED color Meaning
Green The bat te ri es are fully
ch ar ge d. The batteries ha ve
been inser te d cor re ctly.
Re dT he batteries are almost dis‐
ch ar ge d.
The LED lights
up. The cordless headphones
are switched on and connec‐
te d to a re ar displa y.
The LED
fl ashes. The cordless headphones
are sear ch ing fo r a connec‐
tion to a re ar displa y.
The LED is
dar k. The cordless headphones
are switched off.
The batteries are discharged.
The headphones automatically switch off if th ey
ha ve not re cei ve d an audio signal fo r app ro x‐ ima te ly th re e minutes. This preser ve s th e batter‐
ies.
Switching headphones on/off

"Made fo r iPod", and "Made fo r iPhone," mean
th at an electronic accesso ry has been designed
to connect specifically to iPod, or iPhone,
re spectivel y, and has been certified by th e de ve l‐
oper to meet Apple per fo rm ance st andards.
Apple is not re sponsible fo r th e operation of th is
device or its compliance with saf et y and re gula‐
to ry st andards. Please no te th at th e use of th is
accessory with iPod, or iPhone may af fe ct wi re ‐
less per fo rm ance.
Fo r the USA: iPhone ®
, iPod ®
, iPod classic ®
,
iPod nano ®
, and iPod to uch ®
are trademar ks of
Apple Inc., re gis te re d in th e U. S. and ot her coun‐
tries. Lightning™ is a trademark of Apple Inc.
Fo r Canada: iPhone, iPod, iPod classic, iPod
nano, and iPod to uch are trademar ks of Apple
Inc., re gis te re d in th e U. S. and ot her countries.
Lightning is a trademark of Apple Inc.
Cinavia notice: th is product uses Cinavia te ch ‐
nology to limit th e use of unauthorized copies of
some commercially-produced fi lm and videos
and th eir soundt ra ck s. When a prohibited use of
an unauthorized copy is de te cted, a message will
be displ ay ed and playback or copying will be inter ru pt ed. More information about Cinavia
te ch nology is pr ov ided at Cinavia Online Con‐
sumer Information Center at http://
www.cinavia.com. To requ est additional informa‐
tion about Cinavia by ma il , send a postcard with
yo ur mailing addr ess to : Cinavia Consumer Infor‐
mation Center, P. O. Box 8685 1, San Diego, CA ,
92 13 8, US A.
This product incorporates proprie ta ry te ch nology
under license from Ve ra nce Co rp oration and is
pr ot ected by U. S. Pa te nt 7, 369,6 77 and ot her
U. S. and wo rl dwide patents issued and pending
as we ll as copyright and trade secr et pr ot ection
fo r cer ta in aspects of such te ch nology. Cinavia is
a tradema rk of Ve ra nce Co rp oration. Copyright
2004-20 12 Ve ra nce Co rp oration. All ri ghts
re ser ve d by Ve ra nce. Re ve rs e Engineering or dis‐
assembly is prohibited.
Inserting a disc
q
WA RNING Risk of inju ry from laser ra di‐
ation from th e Blu-ray drive
The Blu-ray drive is a class 1 laser product. If
yo u open th e housing of th e Blu-ray drive, th ere is a ri sk of ex posure to invisible laser
ra diation.
Laser ra diation can damage yo ur re tina.

Note s on paint wo rk /matt fi nish paint work care
Obser ve th e fo llowing information:
Information on cleaning and car eA vo iding damage to th e paintwork
Pa int R
Insect re mains: soak with insect re mo ve r and ri nse off th e
trea te d areas af te rw ards.R
Bird droppings: soak with wate r and ri nse off af te rw ards.R
Coolant, brake fl uid, tree re sins, oils, fuel and greases:
ge ntly ru b with a clo th soaked in petroleum et her or
lighter fl uid. R
Ta r st ains: use ta r re mo ve r.R
Wa x: use silicone re mo ve r. R
Do not apply st ic ke rs , fi lms et c.R
Re mo ve dirt immediately, where possible.
Matt fi nish R
The ve hicle should preferably be wa shed by hand using a
soft sponge, car shampoo and plenty of wate r.R
Only use care products re commended by Mercedes-Benz. R
Do not polish th e ve hicle and alloy wheels. R
Do not ha ve yo ur ve hicle cleaned at an automatic car
wa sh to o frequently and do not use wa sh programs which
fi nish wi th a hot wa x ve hicle treatment. R
Do not use paint cleaner, buf fi ng or polishing products
su ch as a gl oss preser ve r, e.g. wa x.R
Alw ay s ha ve paintwork re pairs car ri ed out at a qu alified
specialist wo rk shop. Maintenance and care 387

Information on cleaning and car eA vo iding ve hicle damage
Wi per blades
Fo ld out th e wiper blades and clean th em using a damp clo th .D o not clean th e wiper blades to o of te n.
Ex te ri or lighting
Clean th e lenses with a we t sponge and mild de te rg ent, e.g.
car shampoo. Only use cleaning agents or cleaning clo th s th at are suitable
fo r pla st ic lenses.
Sensors
Clean th e sensors in th e front and re ar bumpers and in th e
ra diator grill with a soft clo th and car shampoo. When using a high-pressure wate r jet, maintain a minimum
dis ta nce of 11 .8 in (30 cm).
Re ar view camera
and 360° Camera R
Open th e camera co ve r with th e multimedia sys‐
te m( →
page 226) . R
Use clear wate r and a soft clo th to clean th e camera lens. Do not use a high-pressure wate r jet.
Ta ilpipes
Clean with cleaning agents re commended by Mercedes-Benz,
particular ly in th e winter and af te r wa shing th e ve hicle. Use acid-free cleaning agents.
Note s on care of th e interior
q
WA RNING Risk of inju ry from pla st ic
parts breaking off af te r th e use of sol‐
ve nt-based care products
Ca re and cleaning products con ta ining sol‐
ve nts can cause su rf aces in th e cockpit to
become porous. When th e airbags are deplo ye d, plastic parts
may break aw ay .

Obser ve th e fo llowing information:
Information on cleaning and car eA vo iding ve hicle damage
Seat belts
Clean with wa rm wate r and soap solution. R
Do not use ch emical cleaning agents. R
Do not dry seat belts by heating th em to ove r 17 6 °F
(80 °C) or ex posing th em to direct sunlight.
Display
Clean th e sur fa ce carefully wi th a mic ro fi ber clo th and
TFT/LCD display cleaner. R
Swit ch off th e display and allow to cool.R
Do not use any ot her cleaning products.
Plastic trim R
Clean with a damp microfiber clo th .R
If th e trim is ve ry dirty: use a cleaning agent re commen‐
ded by Mercedes-Benz. R
Do not apply st ic ke rs , fi lms et c.R
Do not allow cosmetics, insect re pellent or sun cream to
come in contact wi th th e plastic trim.
Genuine wo od/t ri m
elements R
Clean wi th a mic ro fi ber clo th .R
Bla ck piano-lac qu er look: clean with a damp clo th and
soap solution. R
If th e trim is ve ry dirty: use a cleaning agent re commen‐
ded by Mercedes-Benz. Do not use sol ve nt-based cleaning agents, polishes or wa xe s.
Headliner
Clean with a brush or dry shampoo.
Carpet
Use carpet and te xtile cleaning agents re commended by
Mercedes-Benz. Maintenance and care 391

Fu rt her re lated subjects:R
No te s on tire pressure ( →
page 41 4)R
Ti re pressure ta ble ( →
page 41 6)R
Ti re and Loading In fo rm ation placard
( →
page 420)
Ti re pressure moni to ri ng sy st em
Fu nction of th e tire pressure moni to ri ng sys‐
te m
q
DA NG ER Risk of accident due to incor‐
re ct tire pressure
Every tire, including th e spare (if pr ov ided),
should be ch ec ke d when cold at least once a
month and inflated to th e pressure re com‐
mended by th e ve hicle manufacturer (see
Ti re and Loading In fo rm ation placard on th e
B-pillar on th e driver ’s side or th e tire pres‐
sure label on th e inside of th e fuel fi ller fl ap
of yo ur ve hicle). If yo ur ve hicle has tires of a
dif fe re nt size th an th e size indicated on th e
Ti re and Loading In fo rm ation placard or th e tire pressu re ta ble, yo u need to de te rm ine
th e proper tire pressure fo r th ose tires.
As an added saf et y fe ature, yo ur ve hicle has
been equipped with a tire pressure monitor‐
ing sy st em (TPMS) th at illuminates a low tire
pressure indicator lamp when one or more of
yo ur tires are sign if icantly underinflated.
Ac cording ly , if th e low tire pressure indicator
lamp lights up, yo u should st op and ch eck
yo ur tires as soon as possible, and inflate
th em to th e proper pressure. Driving on a
significant ly underinflated tire causes th e tire
to ove rh eat and can lead to tire fa ilure.
Und erinflation also increases fuel consump‐
tion and re duces tire tread life, and may
af fe ct th e ve hicle's handling and braking abil‐
ity. Please no te th at th e TPMS is not a substi‐
tute fo r proper tire maintenance, and it is th e
driver's re sponsibility to maintain cor re ct tire
pressure, ev en if underinflation has not
re ached th e le ve l to trig ge r illumination of
th e TPMS low tire pressure indicator lamp.
Yo ur ve hicle has also been equipped with a
TPMS malfunction indicator to indicate when th e sy st em is not operating properly. The
TPMS malfunction indicator is combined with
th e low tire pressure indicator lamp. When
th e sy st em de te cts a malfunction, th e indica‐
to r lamp will fl ash fo r app ro xima te ly a minute
and th en re main continuously illumina te d.
This sequence will continue upon subsequent
ve hicle st art-ups as long as th e malfunction
ex ists.
When th e malfunction indicator is illumina‐
te d, th e sy st em may not be able to de te ct or
signal low tire pressure as intended. TPMS
malfunctions may occur fo r a va ri et y of re a‐
sons, including th e ins ta llation of incompati‐
ble re placement or alternate tires or wheels
on th e ve hicle th at pr ev ent th e TPMS from
functioning proper ly .
Alw ay s ch eck th e TPMS malfunction wa rn ing
lamp af te r re placing one or more tires or
wheels on yo ur ve hicle to ensure th at th e
re placement or alternate tires and wheels
allow th e TPMS to continue to function prop‐
er ly .41 8
Wheels and tires

Preceding letter 1 :R
Wi th out: passenger ve hicle tires according to
European manufactu ri ng st andards.R
"P": passenger ve hicle tires according to US
manufacturing st andards.R
"LT": light truck tires according to US manu‐
fa cturing st andards.R
"T": compact emer ge ncy spa re wheels with
high tire pressure th at are on ly designe d fo r
te mp orary use in an emer ge ncy.
Aspect ra tio 3 :
Ra tio between tire height and tire width in per‐
cent (ti re height divided by tire width).
Tire code 4 (ti re type):R
"R" ra dial tireR
"D": bias ply tire R
"B": bias belted tires R
"ZR": ra dial tire with a maximum speed abo ve
14 9 mp h (240 km/h) (optional) Rim diame te r 5 :
The diam et er of th e bead seat (not th e diame te r
of th e ri m fl ange). The ri m diame te r is specified
in inches (in).
Load-bearing index 6 :
Numerical code th at specifies th e maximum
load-bearing capacity of a tire (e.g. "91" cor re ‐
sponds to 13 56 lbs (6 15 kg )).
The load-bearing capacity of th e tire must be at
least half th e permissible axle load of yo ur ve hi‐
cle. Do not ove rl oad th e tires by exc eeding th e
specified load limit.
See also: R
Maximum permissible load on th e Ti re and
Loading In fo rm ation placard ( →
page 420)R
Maximum tire load ( →
page 427)R
Load ind ex
Speed ra ting 7 :
Specifies th e appr ove d maximum speed of th e
tire.

Inde xS peed ra ting
ZR...Y 1
up to 18 6 mp h (3 00 km/h)
ZR...(..Y) 1
ove r 18 6 mp h (3 00 km/h)
ZR 1
ove r 14 9 mp h (240 km/h)R
Specifying th e speed ra ting as th e "ZR" index
in tire code 4 is optional fo r tires up to
18 6 mp h (3 00 km/h).R
If yo ur tire co de 4 includes "ZR" and th ere
is no speed ra ting 7 , fi nd out what th e max‐
imum speed is from th e tire manufacturer.R
If load-bearing index 6 and speed ra ting 7
are in brac ke ts, th e maximum speed ra ting of
yo ur tire is abo ve 18 6 mp h (300 km/h). To
fi nd out th e maximum speed, ask th e tire
manufacturer. All-weather tires and winter tires
Inde xS peed ra ting
Q M+S 2
up to 10 0 mp h (160 km/h)
T M+S 2
up to 11 8 mp h (1 90 km/h)
H M+S 2
up to 13 0 mp h (2 10 km/h)
V M+S 2
up to 14 9 mp h (240 km/h)
Wi nter tires bear th e M snowflake symbol
and fulfill th e requ irements of th e Ru bber Manu‐
fa cturers Association (RMA) and th e Ru bber
Association of Canada (RAC) re ga rd ing th e tire
traction on sno w.
Load index 8 : R
No specification given: st andard load (SL)
tire R
"XL" or "Extra Load": ex tra load tire or re in‐
fo rc ed tire R
"Light Load": light load tire R
"C", "D", "E": a load ra nge th at depends on
th e maximum load th at th e tire can car ry at a
cer ta in pressure
Definition of term s fo r tires and loading
Ti re stru ctu re and ch aracteristics: describes
th e number of la ye rs or th e number of ru bber-
coated belts in th e tire con ta ct su rf ace and th e
tire wa ll. These are made of st eel, ny lon, poly‐
es te r and ot her materials.
Bar: metric unit fo r tire pressu re .
14 .5038 pounds per square inch (psi) and
10 0 kilopascal (kPa) is th e equivalent of one bar.
DOT (Department of Tr anspo rt ation): DO T-
mar ke d tires fulfill th e requ irements of th e
US Department of Tr anspor ta tio n.
Av erage we ight of th e ve hicle occupants: th e
number of ve hicle occupants fo r whi ch th e ve hi‐
cle is designed, multiplied by 15 0 lb (68 kg ).
1
"ZR" st ated in th e tire code.2
Or "M+S M " fo r winter tires430
Wheels and tires

th ese are ins ta lled on th e ve hicle, but does not
include passengers or luggage.
Maximum tire load: th e maximum tire load is
th e maximum permissible we ight in kilog ra ms or
lbs fo r whi ch a tire is appr ove d.
Maximum permissible tire pressure: maxi‐
mum permissible tire pressure fo r one tire.
Maximum load on one tire: maximum load on
one tire. This is calculated by dividing th e maxi‐
mum axle load of one axle by two.
PSI (pounds per square in ch ): st andard unit of
measurement fo r tire pressu re .
Aspect ra tio: ra tio between tire height and tire
width in pe rc ent.
Ti re pressure: pressure inside th e tire applying
an outward fo rc e to eve ry square inch of th e tire.
The tire pressure is specified in pounds per
square inch (psi), in kilopascals (kPa) or in bar.
The tire pressure should only be cor re cted when
th e tires are cold.
Cold tire pressure: th e tires are cold when th e
ve hicle has been par ke d fo r at lea st 3 hou rs without direct sunlight on th e tires or th e ve hicle
has been driven fo r less th an 1 mile (1.6 km).
Ti re contact sur fa ce: th e part of th e tire th at
comes into con ta ct wi th th e ro ad.
Ti re bead: th e purpose of th e tire bead is to
ensure th at th e tire sits securely on th e wheel
ri m. There are se ve ra l wire cores in th e tire bead
to pr eve nt th e t ir
e from ch anging length on th e
wheel ri m.
Side wa ll: th e part of th e tire between th e tread
and th e tire bead.
We ight of optional equipment: th e combined
we ight of th e optional equipment we ighing more
th an th e re placed st andard parts and more th an
5 lbs (2.3 kg ). This optional equipment, such as
high-per fo rm ance brakes, le ve l control sy st em, a
ro of luggage ra ck or high-per fo rm ance bat te ri es,
is not included in th e curb we ight and th e we ight
of th e accessories.
TIN (Tire Identification Nu mber): a uni qu e
identification number which can be used by a
tire manufactu re r to identify tires, fo r ex ample,
in a product re call, and th us identify th e pur‐
ch asers. The TIN is made up of th e manufactur‐ er's identity code, tire size, tire type code and
th e manufacturing date.
Load-bearing index: th e load-bearing index is a
code th at con ta ins th e maximum load-bearing
capacity of a tire.
Tr action: traction is th e grip re sulting from fric‐
tion between th e tires and th e ro ad sur fa ce.
We ar indicator: nar row bars (tread we ar bars)
th at are distributed ove r th e tire con ta ct su rf ace.
If th e tire tread is le ve l with th e bars, th e we ar
limit of 1/ 16 in (1.6 mm) has been re ached.
Distribution of ve hicle occupants: distribution
of ve hicle occupants ov er designated seat posi‐
t ions in a ve hicle.
Maximum permissible pa yl oad we ight: nomi‐
nal load and luggage load plus 15 0 lb (68 kg )
multiplied by th e number of seats in th e ve hicle.432
Wheels and tires

Lights
Display messages
Po ssible causes/consequences and P Solutions
I &KHFN /HIW /RZ
%HDP (e xa mp le) *T he cor re sponding light source is defective.