2015 MERCEDES-BENZ S-Class COUPE clock

X
Insert the mechanical key into the lock of
the driver's door as far as it will go.
X Turn the mechanical key counter-clockwise
as far as it will go to position 0047.
The locking knob pops up and the door
unlocks.
X Turn the mechanical key back and remove
it.
X Insert the mechanical key into the Smart-
Key (Y page 81).
X Carefully press the protective cap onto the
lock cylinder until it engages and is seated firmly. Do not pull the door handle when
doing so.
If you use the mechanical key to unlock and
open the driver's door, the anti-theft alarm
system will be triggered. Switch off the alarm
(Y page 76). Locking the vehicle (mechanical key)
If the vehicle can no longer be locked with the SmartKey or KEYLESS-GO, use the mechani-
cal key.
X Open the driver's door.
X Close the front-passenger door and the
trunk lid.
X Press the locking button (Y page 85).
X Check whether the locking knob on the
front-passenger door is still visible. Press
the locking knob down by hand, if neces-
sary. X
Close the driver's door.
X Take the mechanical key out of the Smart-
Key (Y page 81). X
Insert the mechanical key into opening 0043
in the protective cap.
X Pull and hold the door handle.
X Pull the protective cap on the mechanical
key as straight as possible away from the
vehicle until it releases.
X Release the door handle. X
Insert the mechanical key into the lock of
the driver's door as far as it will go.
X Turn the mechanical key clockwise as far as
it will go to position 0047.
The locking knob drops down and the driv- er's door is locked.
X Turn the mechanical key back and remove
it.
X Make sure that the doors and the trunk lid
are locked. Doors
87Opening and closing Z

X
Slide the tip of the mechanical key into
opening 0087and turn.
The lock cover is levered off. 0047
Basic position
0048 To unlock
X Insert the mechanical key into the lock as
far as the stop.
X Turn the mechanical key counter-clockwise
from position 0047as far as it will go to posi-
tion 0048.
The trunk lid unlocks and opens slightly.
X Turn the mechanical key back to position
0047 and remove it.
X Insert the mechanical key into the Smart-
Key.
X Close the lock cover.
X Swing cover 0044upwards until it engages.
X Fold up the rear seat armrest.
i When you lock the vehicle (Y
page 87),
the trunk is also locked. Trunk emergency release
You can unlock the trunk lid from the inside
with the emergency release button. X
Press emergency release button 0043briefly.
The trunk lid unlocks and opens.
The trunk lid can be unlocked with the trunk
lid emergency release when the vehicle is
stationary or while driving.
The trunk lid emergency release does not
unlock the trunk lid if the battery is discon-
nected or discharged.
Trunk lid emergency release light: R emergency release button 0043flashes for
30 minutes after the trunk lid is opened
R emergency release button 0043flashes for
60 minutes after the trunk lid is closed Side windows
Important safety notes
G
WARNING
While opening the side windows, body parts
could become trapped between the side win- dow and the door frame as the side window
moves. There is a risk of injury.
Make sure that nobody touches the side win-
dow during the opening procedure. If some-
body becomes trapped, release the switch or pull the switch to close the side window again. Side windows
93Opening and closing Z

0087
Center vent control, right
0085 Center vent control, left
0083 Center air vent, left
X To open/close: press control0087or0085.
The control pops out.
X Turn control 0087or0085 counter-clockwise or
clockwise.
X To adjust the air direction: hold rear air
vent 0044or0083 by the middle fin and move up
or down or to the left or right. Setting the side air vents
0043
Side window defroster vent
0044 Side air vent
0087 Control for left side air vent
X To open/close: press control0087.
The control pops out.
X Turn control 0087counter-clockwise or
clockwise.
X To adjust the air direction: hold side air
vent 0044by the middle fin 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 vehi-
cle.
At high outside temperatures, open the air
vent and activate the "cooling with air dehu- midification" function. Otherwise, temper-
ature-sensitive items stored in the glove
box could be damaged. When the climate control system 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. 0043
Air vent thumbwheel
0044 Air vent
X To open/close: turn thumbwheel 0043to the
left or right. Setting the rear-compartment air
vents
X
To open/close: press control0087.
The control pops out.
X Turn control 0087counter-clockwise or
clockwise.
X To adjust the air direction: hold rear air
vent 0043or0044 by the middle fin and move up
or down or to the left or right. Setting the air vents
143Climate control Z

X
Press the fuel filler flap in the direction of
arrow 0043.
The fuel filler flap swings up.
X Turn the fuel filler cap counterclockwise
and remove it.
X Insert the fuel filler cap into the holder on
the inside of fuel filler flap 0044.
X Completely insert the filler neck of the fuel
pump nozzle into the tank, hook in place
and refuel.
X Only fill the tank until the pump nozzle
switches off.
i Do not add any more fuel after the pump
stops filling for the first time. Otherwise,
fuel may leak out.
Closing the fuel filler flap X
Replace the cap on the filler neck and turn
clockwise until it engages audibly.
X Close the fuel filler flap.
If you drive at speeds above 2 km/hw ith the
fuel filler flap open, the Tankklappe
Tankklappe offen
offen
(Fuel filler flap open) (Fuel filler flap open) message is
shown in the multifunction display.
i Close the fuel filler flap before locking the
vehicle.
i If you are driving with the fuel filler cap
open, the 00B6reserve fuel warning lamp
flashes. A message appears in the multi-
function display (Y page 266).
In addition, the 00B9Check Engine warning
lamp may light up (Y page 286).
For further information on warning and indi- cator lamps in the instrument cluster, see
(Y page 286). Refueling
165Driving and parking Z

R
Close lockable stowage compartments
while driving.
R Stow and secure objects that are heavy,
hard, pointy, sharp-edged, fragile or too
large in the trunk.
Observe the loading guidelines (Y page 294).
Stowage compartments in the front Glove box
X
To open: pull handle 0043and open glove box
flap 0044.
X To close: fold glove box flap 0044upwards
until it engages.
The glove box can be cooled (Y page 143).
The glove box contains a coin holder, a pen
holder, three credit card holders and a holder
for the COMAND remote control. The glove box can only be locked and
unlocked using the mechanical key. X
To lock: insert the mechanical key into the
lock and turn it 90° clockwise to position
0048.
X To unlock: insert the mechanical key into
the lock and turn it 90° counter-clockwise
to position 0047.
Eyeglasses compartment X
To open: press marking 0043.
The eyeglasses compartment opens down- wards.
X To close: press marking 0043again and the
eyeglasses compartment returns upwards
and engages.
Make sure that the eyeglasses compartment
is always closed while the vehicle is in motion.
Stowage compartments in the center con-
sole X
To open: briefly press marking 0044.
X To close: push stowage compartment 0043
in the direction of the arrow until it
engages. Stowage areas
295Stowage and features Z

Where possible, let the engine cool down and
touch only the components described in the
following. G
WARNING
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. H
Environmental 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:
R using engine oils and 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. adding too much
engine oil can result in damage to the
engine or to the catalytic converter. Have
excess engine oil siphoned off. Example
X Turn cap 0043counter-clockwise and remove
it.
X Add engine oil.
If the oil level is at or below the MIN mark on
the oil dipstick, add 1.1 US qt (1.0 l)of
engine oil.
X Replace cap 0043on the filler neck and turn
clockwise.
Ensure that the cap locks into place
securely.
X Check the oil level again with the oil dip-
stick (Y page 319).
Further information on engine oil
(Y page 393). Additional service products
Checking coolant level 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, let the engine cool down and touch only the components described in the
following. G
WARNING
The engine cooling system is pressurized, par- ticularly when the engine is warm. When 322
Engine compartmentMaintenance 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. X
Park 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.
X Turn the SmartKey to position 2in the igni-
tion lock (Y page 147).
or
X Press Start/Stop button twice
(Y page 147).
X Check the coolant temperature display in
the instrument cluster.
The coolant temperature must be below
158 ‡ (70 †).
X Turn the SmartKey to position
0(Y page 147) in the ignition lock.
or
X Remove Start/Stop button from ignition
lock (Y page 147).
X Slowly turn cap 0043half a turn counter-
clockwise to allow excess pressure to
escape.
X Turn cap 0043further counter-clockwise and
remove it.
If the coolant is at the level of marker bar 0087
in the filler neck when cold, there is enough coolant in coolant expansion tank 0044.If the coolant level is approximately 0.6 in
(1.5 cm) above marker bar 0087in the filler
neck when warm, there is enough coolant
in expansion tank 0044.
X If necessary, add coolant that has been tes-
ted and approved by Mercedes-Benz.
X Replace cap 0043and turn it clockwise as far
as it will go.
For further information on coolant, see
(Y page 395).
Adding washer fluid to the windshield
washer system 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, let the engine cool down and touch only the components described in the
following. G
WARNING
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. X
To open: pull cap0043upwards by the tab.
X Place cap 0043on the edge of the filler neck
and engage in place. Engine compartment
323Maintenance and care Z

If the automatic transmission cannot be shif-
ted to position N, have the vehicle transpor-
ted on a transporter or trailer.
The battery must be connected and charged.
Otherwise, you:
R cannot turn the SmartKey to position 2in
the ignition lock
R cannot release the electric parking brake
R cannot shift the automatic transmission to
position N
i Deactivate the automatic locking feature
(Y page 86). You could otherwise be locked
out when pushing or towing the vehicle. Installing/removing the towing eye
Installing the towing eye The brackets for the screw-in towing eyes are
located in the bumpers. They are at the front and at the rear under covers 0043.
X Remove the towing eye from the vehicle
tool kit/stowage tray (Y page 336).
X Press the mark on cover 0043inwards in the
direction of the arrow.
X Remove cover 0043from the opening.
X Screw in and tighten the towing eye clock-
wise to the stop. Removing the towing eye X
Unscrew and remove the towing eye.
X Attach cover 0043to the bumper and press
until it engages.
X Place the towing eye in the vehicle tool kit/
stowage tray. Towing a vehicle with both axles on
the ground
It is important that you observe the safety
instructions when towing away your vehicle
(Y page 348).
The automatic transmission automatically
shifts to position Pwhen you open the driver's
or front-passenger door or when you remove the SmartKey from the ignition lock.
In order to ensure that the automatic trans-
mission stays in position Nwhen towing the
vehicle, you must observe the following
points:
X You must use the SmartKey instead of the
Start/Stop button (Y page 147).
X Make sure that the vehicle is stationary and
the SmartKey in the ignition lock is in posi-
tion 0.
X Turn the SmartKey to position 2in the igni-
tion lock.
X Depress and hold the brake pedal.
X Shift the automatic transmission to posi-
tion N.
X Release the brake pedal.
X Release the electric parking brake.
X Leave the SmartKey in position 2in the
ignition lock.
X Switch on the hazard warning lamps
(Y page 122).
i In order to signal a change of direction
when towing the vehicle with the hazard
warning lamps switched on, use the com-
bination switch as usual. In this case, only
the indicator lamps for the direction of
travel flash. After resetting the combina- Towing and tow-starting
349Roadside Assistance Z