2016 MERCEDES-BENZ S-COUPE cooling

=Center vent control, right
?Center vent control, left
ACenter air vent, left
XTo open/close:press control=or?.
The control pops out.
XTurn control =or? counter-clockwise or
clockwise.
XTo ad just the air direction: hold rear air
vent ;orA by the midd lefin and move up
or down or to the left or right.
Setting the side air vents
:Sidewin dow defroster vent
;Side air vent
=Control for left side air vent
XTo open/close: press control=.
The control pops out.
XTurn control =counter-clockwise or
clockwise.
XTo ad just the air direction: holdsideair
vent ;bythe midd lefin and move it up or
down or to the left or right.
Setting the glove box air vent
!
Close the air vent when heating the veh i-
cle.
At high outside temperatures, open the air
vent and activate the "cooling with air dehu- midi fication" function. Otherwise, temper-
ature-sensitive items stored inthe glove
box could bedamaged. When the climate control system
isactivated,
the glove box can beventilated, for instance
to cool its contents. The level of airflow
depends on the airflow and air distribution
settings.
:Air vent control
;Air vent
XTo open orclose: turn control :to the
right or left.
Setting the rear-compartment air
vents
XTo open/close: press control=.
The control pops out.
XTurn control =counter-clock wiseor
clockwise.
XTo ad just the air direction: hold rear air
vent :or; bythe midd lefin and move up
or down or to the left or right.
Setting the air vents147
Climate control
Z

Warning/
indicator
lampNSignal type
Possible causes/consequences and M
Solutions
?NThe red coolant warning lamp comes on while the engine is running.
The coolant level is too low.
If the coolant level is correct, the airflow to the engine radiator may be blocked
or the electric engine radiator fan may be malfunctioning.
The coolant is too hot and the engine is no longer being cooled sufficiently.
XObserve the additional display messages in the multifunction display.
XPull over and stop the vehicle safely and switch off the engine, paying
attention to road and traffic conditions.
XSecure the vehicle against rolling away (Ypage 170).
XLeave the vehicle and keep a safe distance from the vehicle until the engine has cooled down.
XCheck the coolant level and add coolant, observing the warning notes
(
Ypage 328).
XIf you have to add coolant frequently, have the engine cooling system
checked.
XMake sure that the air supply to the engine radiator is not blocked, e.g. by
snow, slush or ice.
XDo not start the engine again until the coolant temperature is below 257 ‡
(125 †). Otherwise, the engine could be damaged.
XDrive to the nearest qualified specialist workshop.
XAvoid subjecting the engine to heavy loads, e.g. driving in mountainous
terrain, and stop-and-go traffic.
?N The red coolant warning lamp comes on while the engine is running. A
warning tone also sounds.
The coolant temperature has exceeded 255 ‡ (124 †). The airflow to the
engine radiator may be blocked or the coolant level may be too low.
GWARNING
The engine is not being cooled sufficiently and may be damaged.
Do not drive when your engine is overheated. This can cause some fluids which
may have leaked into the engine compartment to catch fire.
Steam from the overheated engine can also cause serious burns which can
occur just by opening the hood.
There is a risk of injury.
XObserve the additional display messages in the multifunction display.
XPull over and stop the vehicle safely and switch off the engine, paying
attention to road and traffic conditions.
XSecure the vehicle against rolling away (Ypage 170).
Warning and indicator lamps in the instrument cluster295
On-board computer and displays
Z

Warning/
indicator
lampNSignal type
Possible causes/consequences and M
Solutions
XLeave the vehicle and keep a safe distance from the vehicle until the engine
has cooled down.
XCheck the coolant level and add coolant, observing the warning notes
(
Ypage 328).
XIf you have to add coolant frequently, have the engine cooling system
checked.
XMake sure that the air supply to the engine radiator is not blocked, e.g. by
snow, slush or ice.
XAt coolant temperatures below 257 ‡(125 †), you can continue driving to
the nearest qualified specialist workshop.
XAvoid subjecting the engine to heavy loads, e.g. driving in mountainous
terrain, and stop-and-go traffic.
Driving systems
Warning/
indicator
lampNSignal type
Possible causes/consequences and M
Solutions
·NThe red distance warning lamp lights up while the vehicle is in motion. A
warning tone also sounds.
You are approaching a vehicle, a pedestrian or a stationary obstacle in your
line of travel at too high a speed.
XBe prepared to brake immediately.
XPay careful attention to the traffic situation. You may have to brake or take
evasive action.
Further information on PRE ‑SAFE
®Brake (Ypage 75).
For further information about the distance warning function of COLLISION
PREVENTION ASSIST PLUS, see (
Ypage 71).
296Warning and indicator lamps in the instrument cluster
On-board computer and displays

XTo open:open the stowage compartment
(
Ypage 302).
XOpen socket cover :or;.
XTo close: close the cover of the stowage
compartment.
Socket in the trunk
XLift up the cover of socket :.
Coolbox in the rear compartment
Important safety notes
GWARNING
If you cover the ventilation grille for the cool-
box, it may overheat. There is a risk of fire.
Always make sure that the ventilation grille is not covered.
The ventilation grille for the coolbox is in the
trunk.
The coolbox can bear a maximum load of
7.7 lb (3.5 kg).
If you want to store a bottle in the upper com-
partment of the coolbox, the capacity of the
bottle must not exceed 17 fl. oz. (0.5 l).
Store only plastic bottles in the upper com-
partment of the coolbox.
Using the coolbox
XVehicles with rear seat armrest: fold
down the rear seat armrest.
XPull handle :and fold down cover ;.
XTo open:pull handle :on the cover.
XFold the cover out to the front.
XTo switch cooling level to low: press but-
ton ;once.
An indicator lamp in the button lights up.
XTo switch cooling level to high: press
button ;twice.
Both indicator lamps in the button light up.
XTo switch off cooling: press button;
repeatedly until the indicator lamps go out.
The cooling output of the coolbox depends on
the ambient temperature and the selected
cooling level.
The coolbox reduces its cooling output or
switches off, if:
Rmany electrical consumers are turned on
Rthe starter battery is not sufficiently
charged
308Features
Stowage and features

This is indicated by the flashing indicator
lamps in the button. The cooling function will
automatically switch back on as soon as there
is sufficient voltage.
Caring for the coolbox
If you do not need to use the coolbox for an
extended period you should switch it off,
defrost it and clean it. After doing so, leave
the lid open for a time.
Removing and installing the coolbox
You can remove the coolbox for maintenance
purposes.
XTo remove: switch off the coolbox.
XPull plug;down and out.
XUnscrew both screws =.
XPull out the coolbox.
XClose flap:.
XTo install: swing flap:to the side until it
is locked in place by the magnets.
XInsert the coolbox.
XTighten both screws =.
XConnect plug;.
mbrace
General notes
The mbrace system is only available in the
USA.
You must have a license agreement to acti-
vate the mbrace service. Make sure that your system is activated and operational. To log in,
press the
ïMB Info call button. If any of
the steps mentioned are not carried out, the
system may not be activated.
If you have questions about the activation,
contact one of the following telephone hot-
lines:
Mercedes-Benz Customer Assistance Center
at 1-800-FOR-MERCedes (1-800-367-6372)
or 1-866-990-9007
Shortly after successfully registering with the
mbrace service, a user ID and password will
be sent to you by mail. You can use this pass-
word to log onto the mbrace area under "Own-
ers Online" at http://www.mbusa.com.
The system is available if:
Rit has been activated and is operational
Rthe corresponding mobile phone network is
available for transmitting data to the Cus-
tomer Center
Ra service subscription is available
Rthe starter battery is sufficiently charged
Determining the location of the vehicle on a
map is only possible if:
RGPS reception is available.
Rthe vehicle position can be forwarded to
the Customer Assistance Center.
The mbrace system
To adjust the volume during a call, proceed as
follows:
XPress the WorX button on the mul-
tifunction steering wheel.
or
XUse the COMAND volume control.
The system offers various services, e.g.:
RAutomatic and manual emergency call
RRoadside Assistance call
RMB Info call
You can find information and a description of
all available features under "Owners Online"
at http://www.mbusa.com.
Features309
Stowage and features
Z

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

the brake fluid. If the boiling point of the brake
fluid is too low, vapor pockets may form in the
brake system when the brakes are applied
hard. This would impair braking efficiency.
There is a risk of an accident.
You should have the brake fluid renewed at
the specified intervals.
Comply with the important safety notes for
service products when handling brake fluid
(
Ypage 400).
The brake fluid change intervals can be found
in the Maintenance Booklet.
Only use brake fluid approved by Mercedes-
Benz according to MB-Freigabe or MB-
Approval 331.0.
Information about approved brake fluid can
be obtained at any qualified specialist work-
shop or on the Internet at
http://bevo.mercedes-benz.co m.
iHave the brake fluid regularly replaced at
a qualified specialist workshop and the
replacement confirmed in the Maintenance
Booklet.
Coolant
Important safety notes
GWARNING
If antifreeze comes into contact with hot com- ponents in the engine compartment, it may
ignite. There is a risk of fire and injury.
Let the engine cool down before you add anti-
freeze. Make sure that antifreeze is not spilled
next to the filler neck. Thoroughly clean the
antifreeze from components before starting
the engine.
!Only add coolant that has been premixed
with the desired antifreeze protection. You
could otherwise damage the engine.
Further information on coolants can be
found in the Mercedes-Benz Specifications
for Service Products, MB BeVo 310.1, e.g.
on the Internet at http://bevo.mercedes-benz.com. Or con-
tact a qualified specialist workshop.
!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.
iHave the coolant regularly replaced at a
qualified specialist workshop and the
replacement confirmed in the Maintenance
Booklet.
The coolant is a mixture of water and anti-
freeze/corrosion inhibitor. It performs the
following tasks:
Rcorrosion protection
Rantifreeze protection
Rraising the boiling point
If the coolant has antifreeze protection down
to -35 ‡(-37 †), the boiling point of the cool-
ant during operation is approximately 266 ‡
(130 †).
The antifreeze/corrosion inhibitor concentra-
tion in the engine cooling system should:
Rbe at least 50%. This will protect the engine
co
oling system against freezing down to
approximately -35‡(-3 7†).
Rno t exceed 55% (antifreeze protection
down to -49 ‡ [-45 †]). Otherwise, heat
will not be dissipated as effectively.
Mercedes-Benz recommends an antifreeze/
corrosion inhibitor concentrate in accord-
ance with
MB Specifications for Service Products 310.1 .
iWhen the vehicle is first delivered, it is fil-
led with a coolant mixture that ensures
adequate antifreeze and corrosion protec-
tion.
iThe coolant is checked with every main-
tenance interval at a qualified specialist
workshop.
404Service products and filling capacities
Technical data