Page 301 of 536

Setting the side air vents
X
To open/close: turn thumbwheel = up or
down.
i Side window defroster vent : is never
completely shut, even if side air vent ; is
shut. Setting the glove box air vent
When automatic climate control is activated,
the glove box can be ventilated, for instance
to cool its contents. The level of airflow
depends on the airflow and air distribution
settings.
! Close the air vent when heating the
vehicle.
At high outside temperatures, open the air
vent and activate the "cooling with air
dehumidification" function. Otherwise,
temperature-sensitive items stored in the
glove box could be damaged. X
To open: turn thumbwheel : counter-
clockwise
from position 3 to position 2.
X To close: turn thumbwheel : clockwise
from position 2 to position 3. Setting the rear-compartment air
vents
Setting the center vents in the rear
compartment :
Rear-compartment air vent, left
; Rear-compartment air vent, right
= Rear-compartment air vent thumbwheel,
right
? Rear control panel for automatic climate
control
A Rear-compartment air vent thumbwheel,
left
X To open/close: turn thumbwheel = or
A to the right or left.
i In
vehicles without rear-compartment air-
conditioning system: close the rear-
compartment air vents when heating mode
is activated, as no warm air flows through
the rear vents in the basic heating setting. Setting the air vents
299
Climate control Z
Page 406 of 536

Display messages Possible causes/consequences and
M Solutionsb
Please Switch Off
Lights The lights are still switched on when you leave the vehicle. A
warning tone also sounds.
X
Turn the light switch to $ or c.
or
X If the rear fog lamp is switched on: press the light switch in to
the stop. Adaptive High-beam
Assist inoperative Adaptive Highbeam Assist is defective.
X
Visit a qualified specialist workshop. Engine
Display messages Possible causes/consequences and
M Solutions+
Check Coolant
Level See Oper.
Manual The coolant level is too low.
X
Add coolant, observing the warning notes when doing so
(Y page 460).
X If coolant needs to be added more often than usual, have the
engine coolant system checked at a qualified specialist
workshop. G
WARNING
Do not spill antifreeze on hot engine parts. Antifreeze contains ethylene glycol which may burn
if it comes into contact with hot engine parts. You could be seriously burned.
! The
coolant level is too low. Avoid making long journeys with too little coolant in the cooling
system. The engine will otherwise be damaged.
The display messages and the corresponding symbol that indicate that the coolant level is
too low must not be ignored. 404
Display messages
On-board computer and displays
Page 462 of 536

X
Turn cap : counterclockwise and remove
it.
X Add engine oil.
Vehicles with oil level measurement
function
in the on-board computer: observe
the information in the on-board computer
when doing so. Vehicles with oil dipstick: if
the oil level is at or below the MIN mark on
the oil dipstick,
add 0.55 to 1.1 US qt (0.5 to 1.0 l) engine
oil.
X Replace cap : on the filler neck and turn
clockwise.
Ensure that the cap locks into place
securely.
X Check the oil level again with the oil
dipstick (Y page 458) or the on-board
computer (Y page 458).
Further information on engine oil
(Y page 527). Checking and adding other service
products
Checking the coolant level Only check the coolant level when the vehicle
is
on a level surface and the engine has cooled
down.
X Turn the SmartKey to position
2 (Y page 303) in the ignition lock.
On vehicles with KEYLESS-GO, press the
Start/Stop button twice
(Y page 303).
X Check the coolant temperature display in
the instrument cluster.
The coolant temperature must be below
158 ‡
(70 †). G
WARNING
In order to avoid any potentially serious burns:
R use extreme caution when opening the
hood if there are any signs of steam or
coolant
leaking from the cooling system, or if the coolant temperature display indicates
that the coolant is overheated.
R do not remove the pressure cap on the
coolant
reservoir if the coolant temperature
is above 158 ‡ (70 †). Allow the engine to
cool down before removing the cap. The
coolant reservoir contains hot fluid and is
under pressure.
R using a rag, slowly turn the cap
approximately 1
/ 2 turn to relieve excess
pressure. If opened immediately, scalding
hot fluid and steam will be blown out under
pressure.
R do not spill antifreeze on hot engine parts.
Antifreeze contains ethylene glycol which
may burn if it comes into contact with hot
engine parts. X
Slowly turn cap : half a turn counter-
clockwise and allow excess pressure to
escape.
X Turn 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 is approximately 0.6 in
(1.5 cm) above marker bar = in the filler
neck when warm, there is enough coolant
in coolant expansion tank ;.460
Engine compartment
Maintenance and care
Page 526 of 536

Capacities
Model Capacity Fuel, coolant,
lubricants, etc.
Engine oil and
filter
S 550
34
S 550 4MATIC 34
S 63 AMG 9.0 US qt (8.5 l) Approved engine
oils
S 600
S 65 AMG 9.5 US qt (9.0 l)
S 350 BlueTEC
4MATIC 8.5 US qt (8.0 l)
Cooling system
S 550
34
S 550 4MATIC 34 Approximately 14.5 US qt
(13.7 l) MB 325.0 or
MB 326.0
anticorrosion/
antifreeze
S 600 Approximately 15.3 US qt
(14.5 l)
S 63 AMG Approximately 12.2 US qt
(11.5 l)
S 65 AMG Approximately 14.7 US qt
(13.9 l)
S 350 BlueTEC
4MATIC Approximately 12.0 US qt
(11.4 l)
Tank capacity
S 550
34
S 550 4MATIC 34
S 350 BlueTEC
4MATIC 21.9 US gal (83.0 l) Gasoline engines:
premium-grade
unleaded gasoline
(at least 91 octane,
average value
between 96 RON/
86 MON)
Diesel engines:
ULTRA-LOW
SULFUR HIGHWAY
DIESEL
FUEL (ULSD,
maximum sulfur
content 15 ppm) S 600
S 63 AMG
S 65 AMG 23.8 US gal (90.0 l)
Reserve
All models except
AMG vehicles 2.9 US gal (11.0 l)
AMG vehicles 3.7 US gal (14.0 l)
34
BlueEFFICIENCY.524
Service products and capacities
Technical data
Page 531 of 536

fluids can be obtained from any authorized
Mercedes-Benz Center or on the Internet at
http://bevo.mercedes-benz.com
.Coolant
Important safety notes The coolant is a mixture of water and
antifreeze/corrosion inhibitor. It performs
the following tasks:
R
corrosion protection
R antifreeze protection
R raising the boiling point
The engine cooling system is filled at the
factory with coolant that contains an
antifreeze/corrosion inhibitor that ensures
protection down to approximately -35 ‡
(-37 †).
! Only
add coolant that has been premixed
with the desired antifreeze protection.
Otherwise, the engine could be damaged.
Further information on coolants and on
filling can be found in the Mercedes-Benz
Specifications for Service Products, MB
Approval 310.1, e.g. on the Internet at
http://bevo.mercedes-benz.com. You can
also consult an authorized Mercedes-Benz
Center.
! Always use a suitable coolant mixture,
even in countries where high temperatures
prevail.
Otherwise, the engine cooling system is not
sufficiently protected from corrosion and
overheating.
If the coolant has antifreeze protection down
to -35 ‡ (-37 †), the boiling point of the
coolant under operating conditions is
approximately 266 ‡ (130 †).
Your vehicle has a range of aluminum
components. Aluminum components in the
engine make it necessary to use antifreeze/
corrosion inhibitor coolant that has been
specifically formulated to protect the
aluminum parts. Using other antifreeze/ corrosion inhibitors without these
characteristics affects the service life.
The
coolant must be used throughout the year
in order to maintain the necessary corrosion
protection and to provide protection from
overheating. In the Service Booklet, you can
find information on the intervals for renewal.
The renewal interval is determined by the
coolant type and the engine cooling system
design. The renewal interval in the Service
Booklet is only valid if the coolant is renewed
or filled up with Mercedes-Benz approved
products. Therefore, only use MB 325.0 or
326.0 anticorrosion/antifreeze or another
Mercedes-Benz approved product of the
same specification.
Information on other products with the same
specifications that are approved by
Mercedes-Benz can be obtained at an
authorized Mercedes-Benz Center or on the
Internet at http://bevo.mercedes-benz.com.
The coolant is checked at every maintenance
interval at an authorized Mercedes-Benz
Center.
The antifreeze/corrosion inhibitor
concentration in the engine cooling system
should:
R be at least 50%. This will protect the engine
cooling system against freezing down to
approximately -35 ‡ (-37 † ).
R not exceed 55% (antifreeze protection to
-49 ‡ [-45 † ]); otherwise, heat will not
dissipate as effectively.
If the coolant level is too low, MB 325.0 or
326.0 anticorrosion/antifreeze should be
added. Have the engine cooling system
checked for possible leaks. Windshield/headlamp cleaning
system
G
WARNING
Washer solvent/antifreeze is highly
flammable. Do not spill washer solvent/
antifreeze
on hot engine parts, because it may Service products and capacities
529
Technical data
Z