2016 MERCEDES-BENZ S-Class COUPE radiator cap

Where possible, let the engine cool down andtouch only the components described in the
following.
GWARNING
If engine oil comes into contact with hot com- ponents in the engine compartment, it may
ignite. There is a risk of fire and injury.
Make sure that engine oil is not spilled next to
the filler neck. Let the engine cool down and
thoroughly clean the engine oil off the com-
ponents before starting the engine.
HEnvironmental note
When adding oil, take care not to spill any. If
oil enters the soil or waterways, it is harmful to
the environment.
!Only use engine oils and oil filters that
have been approved for vehicles with a ser-
vice system. You can obtain a list of the
engine oils and oil filters tested and
approved in accordance with the
Mercedes-Benz Specifications for Service
Products at any Mercedes-Benz Service
center.
Damage to the engine or exhaust system is
caused by the following:
Rusing engine oils and oil filters that have
not been specifically approved for the
service system
Rreplacing engine oil and oil filters after
the interval for replacement specified by the service system has been exceeded
Rusing engine oil additives.
!Do not add too much oil. adding too much
engine oil can result in damage to the
engine or to the catalytic converter. Have
excess engine oil siphoned off.
Example
XTurn cap :counter-clockwise and remove
it.
XAdd engine oil.
If the oil level is at or below the MIN mark on
the oil dipstick, add 1.1 US qt (1.0 liter) of
engine oil.
XReplace cap :on the filler neck and
tighten clockwise.
Ensure that the cap locks into place
securely.
XCheck the oil level again with the oil dip-
stick (
Ypage 325).
Further information on engine oil
(
Ypage 403).
Additional service products
Checking coolant level
GWARNING
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, let the engine cool down and touch only the components described in the
following.
GWARNING
The engine cooling system is pressurized, par-
ticularly when the engine is warm. When
328Engine compartment
Maintenance and care

opening the cap, you could be scalded by hot
coolant spraying out. There is a risk of injury.Let the engine cool down before opening the
cap. Wear eye and hand protection when
opening the cap. Open the cap slowly half a
turn to allow pressure to escape.
XPark the vehicle on a level surface.
Only check the coolant level when the vehi-
cle is on a level surface and the engine has
cooled down.
XTurn the SmartKey to position 2in the igni-
tion lock (
Ypage 151).
or
XPress Start/Stop button twice
(
Ypage 151).
XCheck the coolant temperature display in
the instrument cluster.
The coolant temperature must be below
158 ‡ (70 †).
XTurn the SmartKey to position
0 (
Ypage 151) in the ignition lock.
or
XRemove Start/Stop button from ignition
lock (
Ypage 151).
XSlowly turn cap :half a turn counter-
clockwise and allow excess pressure to
escape.
XTurn cap :further counter-clockwise and
remove it.
If the coolant is at the level of marker bar =
in the filler neck when cold, there is enough
coolant in coolant expansion tank ;.If the coolant level is approximately 0.6 in
(1.5 cm) above marker bar
=in the filler
neck when warm, there is enough coolant
in expansion tank ;.
XIf necessary, add coolant that has been tes-
ted and approved by Mercedes-Benz.
XReplace cap:and turn it clockwise as far
as it will go.
For further information on coolant, see
(
Ypage 404).
Adding washer fluid to the windshield
washer system
GWARNING
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, let the engine cool down and touch only the components described in the
following.
GWARNING
Windshield washer concentrate could ignite if it comes into contact with hot engine compo-
nents or the exhaust system. There is a risk of
fire and injury.
Make sure that no windshield washer con-
centrate is spilled next to the filler neck.
XTo open: pull cap:upwards by the tab.
XPlace cap :on the edge of the filler neck
and engage in place.
Engine compartment329
Maintenance and care
Z

Filling capacities
ModelCapacity
S63 AMG 4MATIC8.2 US qt(7.8 l)
S65 AMG11.3 US qt(10.7 l)
All other models12.8 US qt(12.1 l)
Windshield washer system
Important safety notes
GWARNIN G
Windshield washe rconcentrate could ignit eif
it comes int ocontact wit hhot engin ecompo -
nent sor th eexhaust system. Ther eis aris kof
fir eand injury.
Mak esure that no windshield washe rcon-
centrate is spilled next to th efiller neck .
!Do not add distilled or de-ionized water to
the washer fluid container. Otherwise, the
level sensor may bedamaged.
!Only MB SummerFit and MB WinterF it
washer fluid should bemixed together. The
spray nozzles may otherwise become
bloc ked.
At temperatures above freezing:
XFill the washer fluid reservoir with a mixture
of water and windshield washer fluid, e.g.
MB SummerFit.
Add 1 part MB SummerFit to 100 parts water.
At temperatures below freezing:
XFill the washer fluid reservoir with a mixture
of water and washer fluid, e.g. MB Winter-
Fit.
For the correct mixing rat iorefer to the
information on the antifreeze reservoir.
iAdd windshield washer fluid, e.g. MB
SummerFit or MB WinterFit, to the washer
fluid all year roun d.
Climate control system refrigerant
Important safety notes
The climate control system of your vehicle is
filled with refrigerant R‑ 134a.
The instruction label regarding the refrigerant
type used can befound on the radiator cross
member.
!Only the refrigerant R‑ 134a and the PAG
oil approved byMercedes-Benz may be
used. The approved PAG oil may not be
mixed with any other PAG oil that isnot
approved for R-134a refrigerant. Other-
wise, the climate control system may be
damaged.
Se rvice work, such as to pping up refrigerant
or replacing components, may only be carried
out byaqualif ied specialist workshop.All
applic able regulations must beadhered to,
SA E standard J639 inc luded.
Always have work on the climate control sys-
tem carried out at a qualified specialist work-
shop.
Refrigerant instruction label
Example: refrigeran tinstruction label
:
Warning symbol
;Refrigerant filling capacity
=Ap plic able SAE standards
?PAG oil part number
AType of refrigerant
Service products and filling capacities405
Technical data
Z