G WARNING
If engine oil comes into contact with hot com-
ponents in the engine compartment, it may
ignite. There is ar isk of fire and injury.
Make sure that engine oil is not spilled next to
the filler neck. Let the engine cool dow na nd
thoroughly clea nt he engine oil off the com-
ponents before starting the engine.
H Environmental note
When adding oil ,t ake care not to spil la ny. If
oil enters the soil or waterways, it is harmfu lt o
the environment.
! Only use engine oil sa nd oil filters that have
been approved for vehicles with as ervice sys-
tem. You can obtai nal ist of the engine oils
and oil filters tested and approved in accord-
ance with the Mercedes-Benz Specifications
for Service Products at any Mercedes-Benz
Service center.
Damag etot he engine or exhaust system is
caused by the following: R
using engine oil sa nd oil filters that have not
been specifically approved for the service
system R
replacing engine oil and oil filters after the
interval for replacement specified by the
service system has been exceeded R
using engine oil additives.
! Do not add too much oil .Ift he oil leve li s
above the "max" mark on the dipstick, too
much oil has been added. This can lea dt o
damage to the engine or the catalytic con-
verter. Have excess oil siphoned off.
Example :e ngine oil cap X
Turn cap C counter-clockwise and remove it. X
Add engine oil.
If the oil leve lisatorb elow the MIN mark on
the oil dipstick, add 1.1 US qt (1.0 liter) of
engine oil. X
Replace cap C on the filler neck and turn
clockwise.
Ensure that the cap locks into place securely. X
Check the oil leve la gain with the oil dipstick
( Y
pag e2 32).
Further information on engine oil ( Y
pag e2 86).
Checkin ga nd adding other service
products
Checkin gc oo lan tl evel
G WARNING
Certain components in the engine compart-
ment, such as the engine, radiator and parts
of the exhaust system, can become very hot.
Working in the engine compartment poses a
risk of injury.
Where possible ,l et the engine cool dow na nd
touch only the components described in the
following.
G WARNING
The cooling system is pressurized, particularly
when the motor is warm .Ify ou open the cap,
you coul dbes calded if hot coolant sprays out.
There is ar isk of injury.
Let the engine cool dow nb efore you open the
cap. Wea rg love sa nd eye protection. Slowly
open the cap to relieve pressure.
ExampleEngine compartment 233
Maintenance and care Z
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
If standard unleaded gasoline is unavailable
and you have to refuel with unleaded gasoline
of al owe rg rade ,o bserve the following pre-
cautions: R
Only fill the fuel tank to half full with regular
unleaded gasoline and fill the rest with pre-
mium-grade unleaded gasoline as soon as
possible. R
Do not drive at the maximum speed. R
Avoid sudden acceleration and engine
speed so ver 3,000 rpm.
You wil lu suall yf ind information abou tt he fuel
grade on the pump. If you cannot find the label
on the pump, ask the staff for assistance.
i For further information, consult aq ualified
specialist workshop or visit
http://www.mbusa.com (USA only).
As at emporary measure, if the recommended
fuel is not available, you may also use regular
unleaded gasoline with an octane rating of
87 AKI/91 RON. This may reduce engine per-
formance and increase fuel consumption. Avoid
driving at full throttle and sudden acceleration.
Never refuel using fuel with al owe rA KI.
Information on refueling ( Y
page 130).
Additives in gasoline
! Operating the engine with fuel additives
adde dl ater can lea dtoe ngine failure. Do not
mix fuel additives with fuel. This does not
include additives for the removal and preven-
tion of residu eb uildup. gasoline must only be
mixed with additives recommended by
Mercedes-Benz. Compl yw ith the instructions
for use on the product label. More information
abou tr ecommended additives can be
obtained from any authorized Mercedes-Benz
Center.
Mercedes-Benz recommends that you use bran-
ded fuels that have additives.
The fuel quality available in some countries may
not be sufficient. Residue could build up in the
fuel injection system as ar esult. In such cases,
and in consultation with an authorized
Mercedes-Benz Center, the fuel may be mixed
with the cleaning additive recommended by
Mercedes-Benz. You must observe the notes
and mixing ratios specifie dont he container. Engine oil
General notes
! Never use engine oil or an oil filter of as pec-
ificatio no ther than is necessary to fulfill the
prescribe ds ervice intervals. Do not change
the engine oil or oil filter in order to achieve
longer replacement intervals than those pre-
scribed. You could otherwise cause engine
damage or damage to the exhaust gas after-
treatment.
Follow the instructions in the service interval
display regarding the oil change. Otherwise,
you may damage the engine and the exhaust
gas aftertreatment.
When handling engine oil, observe the important
safety notes on service products ( Y
page 284).
The engine oils are matched to the performance
of Mercedes-Benz engines and service intervals.
You shoul dt herefore only use engine oils and oil
filters that are approved for vehicle sw ith main-
tenance systems.
For al ist of approved engine oils and oil filters,
consult an authorized Mercedes-Benz Center.
Or visit the website
http://bevo.mercedes-benz.com.
The table shows which engine oils have been
approved for you rv ehicle.
Model MB-Freigabe or
MB-Approval
All models
229.5
i MB approval is indicated on the oil contain-
ers.286
Servic ep roducts and filling capacities
Technical data
Filling capacities The followin gv alue sr efer to an oil chang e
includin gt he oil filter.
Model Capacit y
SLC 300
6. 7USq t( 6.3 l)
Mercedes ‑ Benz
SLC 43 AMG 6.9 US qt (6.5 l)
Ad ditives
! Do not us ea ny additive sint he engine oil.
Thi sc ould damag et he engine.
Brake fluid
G WARNING
The brake fluid constantly absorb sm oisture
from the air. Thi sl owers the boiling point of
the brake fluid .Ift he boiling point of the brake
fluid is too low, vapor pockets may form in the
brake system when the brakes are applied
hard. Thi sw ould impai rb raking efficiency.
There is ar is kofana ccident.
Yo us houl dh av et he brake fluid renewe da t
the specified intervals.
Whe nh an dling brake fluid ,o bserve the impor-
tant safety notes on service products
( Y
page 284).
The brake fluid change interval sc an be found in
the Maintenance Booklet.
Only us eb rake fluid approved by Mercedes-
Benz in accordance with MB-Freigab eorM B-
Approva l3 31.0.
Information abou ta pp roved brake fluid can be
obtaine data ny qualified specialist worksho po r
on the Interne ta t
http://bevo.mercedes-benz.co m.
i Have the brake fluid regularly replaced at a
qualified specialist workshop and the replace-
ment confirmed in the Maintenance Booklet. Coolant
Importan ts afety notes
G WARNING
If antifreeze comes into contact with hot com-
ponents in the engine compartment, it may
ignite. There is ar isk of fire and injury.
Let the engine cool dow nb efore yo ua dd anti-
freeze .M ake sur et hat antifreeze is not spilled
next to the filler neck. Thoroughly clea nt he
antifreeze from components before starting
the engine.
! Only ad dc oolant that has bee np remixed
with the desire da ntifreeze protection. You
coul do therwise damag et he engine.
Furthe ri nformatio nonc oolants can be found
in the Mercedes-Benz Specifications for Ser-
vice Products, MB BeVo 310.1, e.g. on the
Internet at http://bevo.mercedes-benz.com.
Or contact aq ualifie ds pecialist workshop.
! Always use as uitabl ec oolant mixture, even
in countries where hig ht emperatures prevail.
Otherwise ,t he engine cooling system is not
sufficiently protected from corrosion and
overheating.
i Have the coolant regularly replaced at a
qualified specialist workshop and the replace-
ment confirmed in the Maintenance Booklet.
Comply with the important safety precautions
for service products whe nh andling coolant
( Y
page 284).
The coolant is am ixture of water and anti-
freeze/corrosion inhibitor. It is responsible for
the following: R
Anti-corrosion protection R
Antifreeze protection R
Raising the boiling point
If the coolant has antifreeze protection dow nt o
-35 ‡( -37 †), the boiling point of the coolant
during operation is approximatel y2 66 ‡
(130 †).Service products and filling capacities 287
Technical data Z