2017 MERCEDES-BENZ SLC battery

The system is availabl ei f:R
it has been activated and is operational R
the corresponding mobile phone network is
availabl ef or transmitting data to the Cus-
tomer Center R
as ervice subscription is availableR
the starter battery is sufficiently charged
i Determining the location of the vehicle on a
map is only possible if: R
GPS reception is available. R
the vehicle position can be forwarded to
the Customer Assistance Center.
The mbrace system To adjust the volume during ac all, proceed as
follows: X
Press the

ASSYS TP LUS
Service messages The ASSYS TP LU Ss ervic ei nterval display
inform sy ou of th en ex ts ervic ed ue date.
Information on th et yp eofs ervic ea nd servic e
intervals (see th es eparat eM aintenance Book -
let).
You can obtain further information from an
authorize dM ercedes-Benz Cente rora t
http://www.mbusa.co m( US Ao nl y).
i The ASSYS TP LU Ss ervic ei nterval display
does no ts ho wa ny information on th ee ng in e
oil level. Observ et he note sont he engin eo il
level ( Y
page 232).
The multifunction display shows as ervic em es -
sage for several seconds, e.g. :R
Servic eAin..D ay sR
Servic eAD ueR
Servic eAE xceeded by .. Day s
Dependin gont he operating condition soft he
vehicle, th er emaining time or distanc eu ntil th e
next servic ed ue dat eisd isplayed.
The lette r A or B ,p ossibl yinc onnectio nw it ha
number or another letter, shows th et yp eofs er -
vice. A stand sf or am inor servic ea nd B for a
major service.
You can obtain further information from an
authorize dM ercedes-Benz Center.
The ASSYS TP LU Ss ervic ei nterval display does
no tt ak ei nt oa ccoun ta ny periods of time during
whic ht he battery is disconnected.
Maintainin gt he time-dependen ts ervic es ch ed-
ule: X
Not ed own th es ervic ed ue dat ed isplayed in
th em ultifunction display before disconnect -
ing th eb attery.
or X
Afte rr econnecting th eb attery, subtrac tt he
battery disconnection periods from th es er -
vic ed at es hown on th ed isplay.
Hiding as ervice messageX
Press th e v or 8 butto nont he steering
wheel. Displaying service messages X
Switc hont he ignition .X
Press th e Y or e butto nont he steering
whee lt os elect th e Serv. menu.X
Press th e c or d butto ntos elect th e
ASSYST PLU S submen ua nd confirm by press-
ing th e v button.
The servic ed ue dat ea ppear sint he multi-
function display.
Infor ma ti on abou tS ervice
Resetting th eA SSYS TP LUS service
interval display
! If th eA SS YS TP LU Ss ervic ei nterval display
has been inadvertentl yr eset ,t hi ss etting can
be correcte dataq ualified specialist work-
shop.
Hav es ervic ew or kc arrie do ut as described in
th eM aintenance Booklet .T his may otherwise
lead to increased wear and damag etot he
major assemblies or th ev ehicle.
Aq ualified specialist workshop ,e .g .ana uthor-
ized Mercedes-Benz Center, will reset th e
ASSYS TP LU Ss ervic ei nterval display after th e
servic ew or kh as been carrie do ut .Y ou can also
obtain further information on maintenance
work, for example.
Special service requirements The specifie dm aintenance interval takes only
th en orma lo peration of th ev ehicl ei nt o
account. Under arduous operating condition so r
increased load on th ev ehicle, maintenance
wor km us tbec arrie do ut mor ef re quently, for
example: R
regular cit yd rivin gw it hf re quen ti ntermediat e
stops R
if th ev ehicl eisp rimarily used to travel short
distances R
use in mountainous terrain or on poor road
surfaces R
if th ee ng in eiso ften lef ti dlin gf or lon gp eriods
Under these or similar conditions, have, for
example, th ea ir filter, engin eo il and oil filter
replace dorc ha nged mor ef re quently. Under
arduous operating conditions, th et ir es mus tb e
checke dm or eo ften .F urther information can beASSYST PLUS 235
Maintenance and care Z

! Make sure that: R
the side windows and the roof are com-
pletely closed R
the climate control blower is switched off R
the windshiel dw iper switch is at position 0
The vehicle could otherwise be damaged.
You can wash the vehicle in an automatic car
wash from the very start.
If the vehicle is very dirty, pre-wash it before
cleaning it in an automatic car wash.
After using an automatic car wash, wipe off wax
from the windshiel da nd the wiper blades. This
will prevent smears and reduce wiping noises
caused by residue on the windshield.
Washing by hand In some countries, washing by hand is only
allowed at speciall ye quipped washing bays.
Observe the legal requirements in each country. X
Do not use hot water and do not wash the
vehicle in direct sunlight. X
Use as oft sponge to clean.X
Use am ild cleaning agent, such as ac ar
shampoo approved by Mercedes-Benz. X
Thoroughly hose down the vehicle with ag en-
tle jet of water. X
Do not point the water jet directly towards the
air inlet. X
Use plenty of water and rinse out the sponge
frequently. X
Rinse the vehicle with clean water and dry
thoroughly with ac hamois.X
Do not let the cleaning agent dry on the paint-
work.
Carefully remove all deposits of road salt as
soon as possible when driving in winter.
Powe rw ashers
G WARNING
The water jet from ac ircular jet nozzle (dirt
blasters) can cause invisible exterior damage
to the tires or chassis components. Compo-
nent sd amage dint his way may fail unexpect-
edly .T here is ar isk of an accident.
Do not use power washers with circular jet
nozzles to clean the vehicle. Have damaged tires or chassis component sr eplaced imme-
diately.
! Alway sm aintain ad istance of at least
11.8 in (30 cm) between the vehicle and the
power washer nozzle. Information abou tt he
correct distance is available from the equip-
ment manufacturer.
Move the power washer nozzle around when
cleaning your vehicle.
Do not aim directly at any of the following: R
Tires R
Door gaps, roof gaps, joints, etc. R
Soft top (Designo retractable hardtop) R
Electrical components R
Battery R
Connectors R
Lights R
Seals R
Trim R
Ventilation slots
Damaged seals or electrical component sc an
lead to leaks or failures.
! Do not use high-pressure cleaners if the
tank recess is open while you clean it. This
can cause damage to the seals or other com-
ponents.
Cleaning the paintwork
! Do not affix: R
stickers R
films R
magnetic plates or simila ri tems
to painted surfaces. You could otherwise
damage the paintwork.
Scratches, corrosive deposits, areas affected by
corrosion and damage caused by inadequate
care cannot always be completely repaired. In
such cases, visit aq ualified specialist workshop. X
Remove dirt immediately ,w here possible,
while avoiding rubbing too hard. X
Soak insect remains with insect remover and
rinse off the treated areas afterwards. X
Soak bird droppings with water and rinse off
the treated areas afterwards. X
Remove coolant, brake fluid, tree resin, oils,
fuels and greases by rubbing gently with a Care 237
Maintenance and care Z

X
Pull the tire sealant bottle out of the tire infla-
tion compressor.
The filler hose remains attached to the tire
sealant bottle. X
Drive to the nearest qualified specialist work-
shop and have the tire changed there. X
Have the tire sealant bottle and the filler hose
replaced as soon as possible at aq ualified
specialist workshop. X
Have the tire sealant bottle replaced every
four years at aq ualified specialist workshop.
Battery (vehicle)
Important safety notes Special tools and expert knowledge are required
when working on the battery, e.g. removal and
installation .Y ou should therefore have all work
involvin gt he battery carried out at aq ualified
specialist workshop.
G WARNING
Work carried out incorrectly on the battery
can lead, for example, to as hort circuit and
thus damage the vehicle electronics. This can
lead to function restriction sa pplying to
safety-relevant systems, e.g the lighting sys-
tem, the ABS (anti-loc kb raking system) or the
ESP ®
(Electronic Stability Program). The oper-
ating safety of your vehicle may be restricted.
You could lose control of the vehicle, for
example: R
when braking R
in the event of abrupt steerin gm aneuvers
and/or when the vehicle's speed is not
adapted to the road conditions
There is ar isk of an accident.
In the event of as hort circuit or as imilar inci-
dent, contact aq ualified specialist workshop
immediately. Do not drive any further .Y ou
should have all work involvin gt he battery car-
ried out at aq ualified specialist workshop.
For further information about ABS and ESP ®
,
see ( Y
page 55) and ( Y
page 58). G WARNING
Electrostatic build-up can lead to the creation
of sparks, which could ignite the highly explo-
sive gases of ab attery. There is ar isk of an
explosion.
Before handling the battery, touch the vehicle
body to remove any existin ge lectrostatic
build-up.
The highly flammable gas mixture forms when
charging the battery as well as when jump-start-
ing.
Always make sure that neither you nor the bat-
tery is electrostatically charged. Ab uild-up of
electrostatic charge can be caused, for exam-
ple: R
by wearing clothin gm ade from synthetic
fibers R
due to friction between clothin ga nd seatsR
if you push or pull the battery across the car-
pet or other synthetic materials R
if you wipe the battery with ac loth
G WARNING
During the charging process, ab attery produ-
ces hydrogen gas. If as hort circuit occurs or
sparks are created, the hydrogen gas can
ignite. There is ar isk of an explosion. R
Make sure that the positive terminal of a
connected battery does not come into con-
tact with vehicle parts. R
Never place metal object sort ools on ab at-
tery. R
It is importan tt hat you observe the descri-
bed order of the battery terminals when
connectin ga nd disconnectin gab attery.R
When jump-starting, make sure that the
battery poles with identical polarity are
connected. R
It is particularly importan ttoo bserve the
described order when connectin ga nd dis-
connectin gt he jumper cables. R
Never connect or disconnect the battery
terminals while the engine is running.
G WARNING
Battery acid is caustic. There is ar isk of injury.246
Battery (vehicle)
Breakdown assistance

Avoi dc ontact with skin, eyes or clothing. Do
not inhal ea ny battery gases .Don ot lean over
the battery .K ee pc hildren away from batter-
ies. Wash away battery aci di mmediatel yw it h
plenty of clean water and see km edica la tten-
tion.
H Environmental note
Batterie sc ontain dangerous
substances .Itisa gain st the
la wtod is pose of them with
the househol dr ubbish .T hey
must be collected separately
and recycle dtop rotect the
environment.
Dispose of batteries in an
environmentally friendly
manner. Take discharged
batteries to aq uali fied spe-
cialist workshop or as pecial
collectio np oi nt for used bat-
teries.
! Hav et he battery checked regularly at a
qualified specialist workshop.
Observ et he service intervals in the Mainte-
nance Bookle torc ontact aq uali fied specialist
workshop for more information.
! Alway sh av ew or konb at teries carrie do ut at
aq uali fied specialist workshop .S hould it, in
exceptiona lc ircumstances ,bea bs olutely
necessary to disconnect the 12-volt battery
yourself, observe the following: R
secur et he vehicl etop revent it from rolling
away. R
switch off the ignition. R
always disconnect the negative terminal
clamp first, followe dbyt he positive termi-
nal clamp.
After the battery ha sb ee nd is connected ,t he
transmission is locked in position P .
After the work ha sb ee nd on e, instal lt he bat-
tery and replace the cove roft he positive ter-
mina lc lamp firmly.
Compl yw it hs af ety precautions and take pro-
tective measures when handling batteries. Risk of explosion.
Fire, open flames and smoking are
prohibited when handling the bat-
tery .A voi dc reating sparks.
Battery aci disc austic. Avoi dc ontact
with skin, eyes or clothing.
Wear suitabl ep rotective clothing,
especially gloves, apron and face-
guard.
Rinse any aci ds pill si mmediately
with clear water. Contact ap hysician
if necessary.
Wear ey ep rotection.
Kee pc hildren away.
Observ et hi sO perator' sM an ual.
For safety reasons ,M ercedes-Benz recom-
mend st ha ty ou onl yu se batteries which have
been teste da nd approved for your vehicl eb y
Mercedes-Benz. These batteries provide
increased impact protection to prevent vehicle
occupants from suffering aci db ur ns shoul dt he
battery be damaged in the event of an accident.
In order for the battery to achieve the maximum
possibl es ervice life, it must always be suffi-
ciently charged.
Like othe rb at teries, the vehicl eb at tery may
discharge ove rt ime if yo udon ot us et he vehicle.
In thi sc ase, have the battery disconnected at a
qualified specialist workshop .Y ou can also
charge the battery with ac harge rr ecommended
by Mercedes-Benz. Contact aq uali fied special-
is tw or kshop for furthe ri nformation.
Hav et he battery condition of charge checked
more frequentl yify ou us et he vehicl em ai nl yf or
short trip sorify ou leav eits tanding idle for a
lengthy period. Consult aq uali fied specialist
workshop if yo uw is htol eave your vehicle
parked for al on gp er io doft ime.
Remove the SmartKe yify ou park the vehicle
and do not require any electrical consumers.Battery (vehicle) 247
Breakdo wn assis tance Z

The vehicle will then use very little energy, thus
conserving battery power.
If the power supply has been interrupted, e.g. if
you reconnect the battery, you will have to: R
reset the function for automatically folding
the exterior mirrors in/out by folding the mir-
rors out once ( Y
page 89)R
set the clock (see the Digital Operator's Man-
ual)
On vehicles with am ultimedia system, the
time is set automatically.
Charging the battery
G WARNING
During charging and jump-starting, explosive
gases can escape from the battery. There is a
risk of an explosion.
Particularly avoid fire, open flames, creating
sparks and smoking. Ensure there is sufficient
ventilation while charging and jump-starting.
Do not lean over ab attery.
G WARNING
Battery acid is caustic. There is ar isk of injury.
Avoid contact with skin, eyes or clothing. Do
not inhale any battery gases. Do not lean over
the battery. Keep children away from batter-
ies. Wash away battery acid immediately with
plenty of clean water and seek medical atten-
tion.
G WARNING
Ad ischarged battery can freeze at tempera-
tures below freezin gp oint. When jump-start-
ing the vehicle or charging the battery, gases
can escape from the battery. There is ar isk of
an explosion.
Allow the frozen battery to thaw out before
charging it or jump-starting.
! Only use battery chargers with am aximum
charging voltage of 14.8 V.
! Only charge the battery using the jump-
starting connection point.
The jump-starting connection point is in the
engine compartment. If the indicator/warning lamps do not light up at
low temperatures, it is very likely that the dis-
charged battery has frozen. In this case, you
may neither charge the battery nor jump-start
the vehicle. The service life of at hawed-out bat-
tery may be shorter .T he starting characteristics
can be impaired, particularly at low tempera-
tures. Have the thawed-out battery checked at a
qualified specialist workshop.
Read the battery charger's operating instruc-
tions before charging the battery. X
Open the hood. X
Connec tt he battery charger to the positive
terminal and ground point in the same order
as when connectin gt he donor battery in the
jump-starting procedure ( Y
page 249).248
Battery (vehicle)
Breakdown assistance

Jump-starting For the jump-starting procedure, use only the jump-starting connection point in the engine com-
partment ,c onsisting of ap ositive terminal and ag round point.
G WARNING
Battery acid is caustic. There is ar isk of injury.
Avoid contact with skin, eyes or clothing. Do not inhale any battery gases. Do not lean over the
battery. Keep children away from batteries. Wash away battery acid immediately with plenty of
clean water and seek medical attention.
G WARNING
During charging and jump-starting, explosive gases can escape from the battery. There is ar isk
of an explosion.
Particularly avoid fire, open flames, creating sparks and smoking. Ensure there is sufficient ven-
tilation while charging and jump-starting. Do not lean over ab attery.
G WARNING
During the charging process, ab attery produces hydrogen gas. If as hort circuit occurs or sparks
are created, the hydrogen gas can ignite. There is ar isk of an explosion.R
Make sure that the positive terminal of ac onnected battery does not come into contact with
vehicle parts. R
Never place metal objects or tools on ab attery.R
It is important that you observe the described order of the battery terminals when connecting
and disconnecting ab attery.R
When jump-starting, make sure that the battery poles with identical polarity are connected. R
It is particularly important to observe the described order when connecting and disconnecting
the jumper cables. R
Never connect or disconnec tt he battery terminals while the engine is running.
G WARNING
Ad ischarged battery can freeze at temperatures below freezing point. When jump-starting the
vehicle or charging the battery, gases can escape from the battery. There is ar isk of an explosion.
Allow the frozen battery to thaw out before charging it or jump-starting.
! Avoid repeated and lengthy starting attempts. Otherwise, the catalytic converter could be
damaged by the non-combusted fuel.
If the indicator/warning lamps do not light up at low temperatures, it is very likely that the dis-
charged battery has frozen .Int his case, you may neither charge the battery nor jump-start the
vehicle. The service life of at hawed-out battery may be shorter. The starting characteristic sc an be
impaired, particularly at low temperatures. Have the thawed-out battery checked at aq ualified
specialist workshop. Jump-starting 249
Breakdown assistance Z

Do not start the vehicl eu si ng ar apid charging device. If your vehicle's battery is discharged, the
engine can be jump-started fro ma nothe rv ehicl eorf ro mas econd battery using jumpe rc ables.
Observe the following points: R
The battery is not accessible in al lv ehicles. If the othe rv ehicle's battery is not accessible ,j ump-
start the vehicl eu si ng as econd battery or aj ump-starting device.R
Yo um ay onl yj ump-star tt he vehicl ew he nt he engine and exhaust system ar ec old.R
Do not start the engine if the battery is frozen. Let the battery tha wf irst.R
Onl yj ump-star tf ro mb at teries with a12Vv oltag er at ing.R
Onl yu se jumpe rc able sw hi ch have as uf ficient cross-sectio na nd insulate dt ermina lc lamps.R
If the battery is full yd is charged, leav et he battery tha ti sb ei ng used to jump-star tc onnected for
af ew minute sb ef or ea ttempting to start. Thi sc harge st he battery slightly.R
Make sure tha tt he two vehicles do not touch.
Make sure that: R
The jumpe rc able sa re not damaged.R
Bar ep ar ts of the termina lc lamp do not come into contact with othe rm eta lp ar ts whil et he jumper
cable sa re connected to the battery.R
The jumpe rc able sc anno tc ome into contact with parts which can mov ew he n t he engine is
running ,s uc hast he V-bel tp ulle yort he fan.X
Secure the vehicl ebya pplyin gt he electri cp ar kin gb rake.X
Shift the transmission to position P .X
Make sure tha tt he ignition is switched off .A ll indicator lamps in the instrument cluster must be
off .W he nu si ng the SmartKey, tur nt he SmartKe ytop osit ion 0 in the ignition lock and remove it
( Y
page 115).X
Switch off al le le ctrical consumers ,e .g .r ea rw in do wd ef roster ,l ig hting, etc.X
Open the hood.
Positio nn umber