warning light MERCEDES-BENZ S-COUPE 2016 Service Manual

XPress the fuel filler flap in the direction of
arrow:.
The fuel filler flap swings up.
XTurn the fuel filler cap counterclockwise
and remove it.
XInsert the fuel filler cap into the holder on
the inside of fuel filler flap ;.
XCompletely insert the filler neck of the fuel
pump nozzle into the tank, hook in place
and refuel.
XOnly fill the tank until the pump nozzle
switches off.
iDo not add any more fuel after the pump
stops filling for the first time. Otherwise,
fuel may leak out.
Closing the fuel filler flap
XReplace the cap on the filler neck and turn
clockwise until it engages audibly.
XClose the fuel filler flap.
If you drive at speeds above 2 km/ hwith the
fuel filler flap open, the Fuel
fillerflap
openmessage is shown in the multifunction
display.
iClose the fuel filler flap before locking the
vehicle.
iIf you are driving with the fuel filler cap
open, the 8reserve fuel warning lamp
flashes. A message appears in the multi-
function display (
Ypage 271).
In addition, the ;Check Engine warning
lamp may light up (
Ypage 293).
For further information on warning and indi-
cator lamps in the instrument cluster, see
(
Ypage 293).
Refueling169
Driving and parking
Z

Applying automatically
The electric parking brakeis automatically
applie dwhen th etransmission is in position P
and :
Rtheengin eis switched off or
Rth edriver is no twearing aseat belt and th e
driver' sdoor is opened
To preven tth eelectric parking brak efrom
bein gautomatically applied, pull handle :.
The electric parking brak eis also engage d
automatically if:
RDISTRONI CPLU Sbrings th evehicl eto a
standstill or
Rth eHOLD function is keepin gth evehicl e
stationary
RActive Parking Assis tis keepin gth evehicl e
stationary
In addition ,at least on eof th efollowin gcon-
dition smus tbe fulfilled :
Rthere isasystem malfunction .
Rthepower suppl yis insufficient.
Rth evehicl eis stationary for alengthy
period.
The red F(USAonly) or !(Canada
only) indicator lamp in th einstrumen tcluste r
lights up.
The electric parking brak eis no tautomati-
call yengage dif th eengin eis switched off by
th eECO start/sto pfunction .
Releasing automatically
The electric parking brak eis release dauto -
matically when all of th efollowin gcondition s
are fulfilled :
Rtheengin eis running.
Rth etransmission is in position Dor R.
Rth eseat belt has been fastened.
Ryou depress th eaccelerato rpedal .
If th eautomatic transmission is in position R,
th etrunk lid mus tbe closed. If your seat belt is no
tfastened, th efollowin g
condition smus tbe fulfilled to automatically
release th eelectric parking brake:
Rth edriver' sdoor is closed.
Ryou hav eshifte dout of transmission posi-
tion Por you hav epreviously driven faste r
than 2mph (3 km/h).
En sure that you do no tdepress th eacceler -
ato rpedal unintentionally. Otherwise the
parking brak ewill be release dand th evehicl e
will start to move.
Eme rgency braking
The vehicl ecan also be braked during an
emergenc yby usin gth eelectric parking
brake.
XWhil edriving ,push handle :of th eelectric
parking brak e (
Ypage 172).
The vehicl eis braked as lon gas you keep
handle :of th eelectric parking brak e
pre ssed. The longer electric parking brak e
handle :is depressed, th egreate rth e
braking force .
During braking :
Rawarning tone sounds
Rth ePlease Releas eParkin gBrake
message appear s
Rthered F (USAonly) or !(Canada
only) indicator lamp in th einstrumen tclus -
te rflashes
When th evehicl ehas been braked to a stand-
still, th eelectric parking brak eis engaged.
Park ing the vehicle for a long period
If you leav eth evehicl eparked for longer than
four weeks, th ebattery may be damaged by
exhaustive discharging.
Parking173
Driving and parking
Z

For more dynamic changes, carry out a man-
ual reset.
For further information on the ECO display,
see (
Ypage 236).
Braking
Important safety notes
GWARNING
If you shift down on a slippery road surface in an attempt to increase the engine's braking
effect, the drive wheels could lose their grip.
There is an increased danger of skidding and
accidents.
Do not shift down for additional engine brak-
ing on a slippery road surface.
Downhill gradients
!On long and steep gradients, you must
reduce the load on the brakes by shifting
early to a lower gear. This allows you to take
advantage of the engine braking effect and
helps avoid overheating and excessive
wear of the brakes.
When you take advantage of the engine
braking effect, a drive wheel may not turn
for some time, e.g. on a slippery road sur-
face. This could cause damage to the drive
train. This type of damage is not covered by
the Mercedes-Benz warranty.
Heavy and light loads
GWARNING
If you rest your foot on the brake pedal while
driving, the braking system can overheat. This increases the stopping distance and can even
cause the braking system to fail. There is a
risk of an accident.
Never use the brake pedal as a footrest. Never
depress the brake pedal and the accelerator
pedal at the same time.
!Depressing the brake pedal constantly
results in excessive and premature wear to
the brake pads.
If the brakes have been subjected to a heavy
load, do not stop the vehicle immediately.
Drive on for a short while. This allows the air-
flow to cool the brakes more quickly.
Wet roads
If you have driven for a long time in heavy rain
without braking, there may be a delayed reac-
tion from the brakes when braking for the first
time. This may also occur after the vehicle has
been washed or driven through deep water.
You have to depress the brake pedal more
firmly. Maintain a greater distance from the
vehicle in front.
After driving on a wet road or having the vehi-
cle washed, brake firmly while paying atten-
tion to the traffic conditions. This will warm up
the brake discs, thereby drying them more
quickly and protecting them against corro-
sion.
Limited braking performance on salt-
treated roads
If you drive on salted roads, a layer of salt
residue may form on the brake discs and
brake pads. This can result in a significantly
longer braking distance.
RIn order to prevent any salt build-up, apply
the brakes occasionally while paying atten-
tion to the traffic conditions.
RCarefully depress the brake pedal and the
beginning and end of a journey.
RMaintain a greater distance to the vehicle
ahead.
Servicing the brakes
!If the red brake warning lamp lights up in
the instrument cluster and you hear a warn-
ing tone while the engine is running, the
brake fluid level may be too low. Observe
176Driving tips
Driving and parking

additional warning messages in the multi-
function display.
The brake fluid level may be too low due to
brake pad wear or leaking brake lines.
Have the brake system checked immedi-
ately. This work should be carried out at a
qualified specialist workshop.
!Vehicles with 4MATIC:function or per-
formance tests may only be carried out on
a 2-axle dynamometer. If you wish to oper-
ate the vehicle on such a dynamometer,
please consult an authorized Mercedes-
Benz Center in advance. You could other-
wise damage the drive train or the brake
system.
!Vehicles with 4MATIC: the ESP®system
operates automatically. The engine and the
ignition must therefore be switched off (the
SmartKey must be in position 0or 1in the
ignition lock or the Start/Stop button must
be in position 0or 1) if the electric parking
brake is tested on a brake dynamometer.
Braking triggered automatically by ESP
®
may cause severe damage to the brake
system.
!Vehicles without 4MATIC: the ESP®
system operates automatically. The engine
and the ignition must therefore be switched
off (the SmartKey must be in position 0or 1
in the ignition lock or the Start/Stop button
must be in position 0or 1) if:
Rthe electric parking brake is tested using
a brake dyn
amometer.
Rthe vehicle is towed with one axle raised.
Braking triggered automatically by ESP
®
may cause severe damage to the brake
system.
All checks and maintenance work on the
brake system must be carried out at a quali-
fied specialist workshop. Consult a qualified
specialist workshop to arrange this.
Have brake pads installed and brake fluid
replaced at a qualified specialist workshop. If the brake system has only been subject to
moderate loads, you should test the function-
ality of your brakes at regular intervals.
Information on BAS (Brake Assist) (
Ypage 68)
and BAS PLUS (Brake Assist PLUS)
(
Ypage 69).
For safety reasons, Mercedes-Benz recom-
mends only installing the following brake
disks and brake pads/linings:
Rbrake disks that have been approved by
Mercedes-Benz
Rbrake pads/linings that have been
approved by Mercedes-Benz or that are of
an equivalent standard of quality
Other brake disks or brake pads/linings can
compromise the safety of your vehicle.
Always replace all brake disks and brake
pads/linings on an axle at the same time.
Always install new brake pads/linings when
replacing brake disks.
The vehicle is equipped with lightweight
brake disks to which the wheel assembly with rim and threaded connection is matched.
The use of brake disks other than th ose
appr

oved by Mercedes-Benz can change the
track width and is subject to approval, if appli-
cable.
Shock-type loads when handling the brake
disks, such as when changing wheels, can
lead to a reduction in comfort when driving
with lightweight brake disks. Avoid shock-
type loads on the lightweight brake disks,
particularly on the brake plate.
Mercedes-Benz recommends that you only
use brake fluid that has been specially
approved for your vehicle by Mercedes-Benz,
or which corresponds to an equivalent quality
standard. Brake fluid which has not been
approved for Mercedes-Benz vehicles or
which is not of an equivalent quality could
affect your vehicle's operating safety.
Driving tips177
Driving and parking
Z

Do not use cruise control:
Rin road and traffic conditions which do not
allow you to maintain a constant speed e.g.
in heavy traffic or on winding roads
Ron slippery road surfaces. Braking or accel-
erating could cause the drive wheels to lose
traction and the vehicle could then skid
Rwhen there is poor visibility, e.g. due to fog,
heavy rain or snow
If there is a change of drivers, advise the new
driver of the speed stored.
Cruise control lever
:To activate or increase speed
;To activate or reduce speed
=To deactivate cruise control
?To activate at the current speed/last
stored speed
When you activate cruise control, the stored
speed is shown in the multifunction display
for five seconds. In the speedometer, the seg- ments between the stored speed and the
maximum speed light up.
Storing and maintaining the current
speed
You can store the current speed if you are
driving faster than 20 mph (30 km/h).
XAccelerate the vehicle to the desired
speed.
XBriefly press the cruise control lever up :
or down ;.
XRemove your foot from the accelerator
pedal.
Cruise control is activated. The vehicle
automatically maintains the stored speed.
iCruise control may be unable to maintain
the stored speed on uphill gradients. The
stored speed is resumed when the gradient
evens out. Cruise control maintains the
stored speed on downhill gradients by
automatically applying the brakes.
Calling up the last speed stored
GWARNING
If you call up the stored speed and it is lower
than the current speed, the vehicle deceler-
ates. If you do not know the stored speed, the vehicle could decelerate unexpectedly. There
is a risk of an accident.
Pay attention to the road and traffic condi-
tions before calling up the stored speed. If you
do not know the stored speed, store the
desired speed again.
180Driving system s
Driving an d parking

braking in good time and for staying in your
lane.
DISTRONIC PLUS with Steering Assist and
Stop&Go Pilot does not detect road and traf-
fic conditions. If you are following a vehicle
which is driving towards the edge of the road,
your vehicle could come into contact with the
curb or other road boundaries. Be particularly
aware of other road users, e.g. cyclists, that
are directly next to your vehicle.
Obstacles such as building site huts on the
lane or projecting out into the lane are not
detected.
An inappropriate steering intervention, e.g.
after intentionally driving over a lane marking,can be corrected at any time if you steer
slightly in the opposite direction.
DISTRONIC PLUS with Steering Assist and
Stop&Go Pilot cannot continuously keep your
vehicle in lane. In some cases, the steering
intervention is not sufficient to bring the vehi-
cle back to the lane. In such cases, you must
steer the vehicle yourself to ensure that it
does not leave the lane.
The support provided by the system can be
impaired if:
Rthere is poor visibility, e.g. due to insuffi-
cient illumination of the road, or due to
snow, rain, fog or spray
Rthere is glare, e.g. from oncoming traffic,
the sun or reflections (e.g. when the road
surface is wet)
Rthe windshield is dirty, fogged up, damaged or covered, for instance by a sticker, in the
vicinity of the camera
Rthere are no, several or unclear lane mark-
ings for a lane, e.g. in areas with road con-
struction work
Rthe lane markings are worn away, dark or
covered up, e.g. by dirt or snow
Rthe distance to the vehicle in front is too
small and the lane markings thus cannot be
detected
Rthe lane markings change quickly, e.g.
lanes branch off, cross one another or
merge
Rthe road is narrow and winding
Rthere are strong shadows cast on the road
The system is switc hed t
o passive and no lon-
ger assists you by performing steering inter-
ventions if:
Ryou actively change lane
Ryou switch on the turn signal
Rtake your hands off the steering wheel or do
not steer for a prolonged period of time
iSteering Assist and Stop&Go Pilot are
activated again automatically after a lane
change is completed.
Steering Assist and Stop&Go Pilot do not pro-
vide any support:
Ron very sharp corners
Rwhen a loss of tire pressure or a defective
tire has been detected and displayed
Pay attention also to the important safety
notes for DISTRONIC PLUS (
Ypage 182).
The steering interventions are carried out
with a limited steering moment. The system
requires the driver to keep his hands on the
steering wheel and to steer himself.
If you do not steer yourself or if you take your hands off the steering wheel for a prolonged
period of time, the system will first alert you
with a visual warning. A steering wheel sym-
bol appears in the multifunction display. If you
have still not started to steer and have not
taken hold of the steering wheel after five
seconds at the latest, a warning tone also
sounds to remind you to take control of the
vehicle. Steering Assist and Stop&Go Pilot are
switched to passive. DISTRONIC PLUS
remains active.
Driving systems191
Driving and parking
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Rthe windshield is dirty, fogged up or cov-
ered, for instance by a sticker, in the vicinity
of the camera
Rthe road surface has no texture or is reflec-
tive, e.g. in the case of newly laid asphalt,
concrete slabs or puddles
Rthe distance to the vehicle in front is too
short
Rsections of the route have a very small
radius of curvature
Ryou accelerate hard or brake sharply
AIRMATIC
General notes
AIRMATIC is an air suspension with variable
damping for improved driving comfort. All-
round level control ensures the best possible
suspension and constant ground clearance,
even with a laden vehicle. When you drive
fast, the vehicle is lowered automatically to
improve driving safety and to reduce fuel con-
sumption. There is also the option to manually
adjust the vehicle level. AIRMATIC consists of
level setting, level control and the Adaptive
Damping System ADS PLUS.
Important safety notes
GWARNING
When the vehicle is being lowered, people
could become trapped if their limbs are
between the vehicle body and the wheels or
underneath the vehicle. There is a risk of
injury.
Make sure no one is underneath the vehicle or
in the immediate vicinity of the wheel arches
when the vehicle is being lowered.
Vehicle level
Setting the raised vehicle level
It is possible to choose between the "Normal"
and "Raised" vehicle levels. Select the "Nor-
mal" setting for normal road surfaces and
"Raised" for driving with snow chains or on
particularly poor road surfaces. Your selec-
tion remains stored even if you remove the
SmartKey from the ignition lock.
XStart the engine.
If indicator lamp ;is not lit:
XPress button :.
Indicator lamp ;lights up. The vehicle is
raised by 1.0 in (25 mm) compared to the
normal level.
The Vehicle Rising
message appears in
the multifunction display.
iThe message disappears after ten sec-
onds, irrespective of the level reached. If
necessary, the vehicle is raised further.
The "Raised level" setting is canceled if you:
Rdrive at a speed over approximately 75 mph
(120 km/h)
Rdrive for approximately three minutes at a
speed over 50 mph (80 km/h)
Setting the normal vehicle level
XStart the engine.
If indicator lamp ;is lit:
XPress button :.
Indicator lamp ;goes out. The vehicle is
adjusted to normal level.
Driving system s197
Driving an d parking
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:Sensors in the front bumper, left-hand
side (example)
The sensors must be free from dirt, ice or
slush. They can otherwise not function cor-
rectly. Clean the sensors regularly, taking
care not to scratch or damage them
(
Ypage 335).
Front sensors
CenterApprox. 40 in (approx.
100 cm)
CornersApprox. 24 in (approx.
60 cm)
Rear sensors
CenterApprox. 48 in (approx.
120 cm)
CornersApprox. 32 in (approx.
80 cm)
Minimum distance
CenterApprox. 8 in (approx.
20 cm)
CornersApprox. 6 in (approx.
15 cm)
If there is an obstacle within this range, the
relevant warning displays light up and a warn-
ing tone sounds. If the distance falls below
the minimum, the distance may no longer be
shown.
Warning displays
:Segments on the left-hand side of the
vehicle
;Segments on the right-hand side of the
vehicle
=Segments showing operational readiness
The warning displays show the distance
between the sensors and the obstacle. The
warning display for the front area is in the
instrument cluster. The warning display for
the rear area is located on the headliner in the
rear compartment.
The warning display for each side of the vehi- cle is divided into five yellow and two red seg-
ments. PARKTRONIC is operational if opera-
tional readiness indicator =lights up.
The selected transmission position and the
direction in which the vehicle is rolling deter-
200Driving systems
Driving and parking

mine which warning display is active when the
engine is running.
Transmission
positionWarning display
DFront area activated
R,Nor the vehicle
is rolling back-
wardsRear and front areas
activated
PNo areas activated
One or more segments light up as the vehicle
approaches an obstacle, depending on the
vehicle's distance from the obstacle.
From the:
Rsixth segment onwards, you will hear an
intermittent warning tone for approx-
imately two seconds.
Rseventh segment onwards, you will hear a
warning tone for approximately two sec-
onds. This indicates that you have now
reached the minimum distance.
Deactivating/activating PARKTRONIC
:Indicator lamp
;To deactivate/activate PARKTRONIC
If indicator lamp :is on then PARKTRONIC is
deactivated. Active Parking Assist is then also
deactivated.
iPARKTRONIC is automatically activated
when you turn the SmartKey to position 2in
the ignition lock.
Driving systems201
Driving and parking
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Problems with PARKTRONIC
ProblemPossible causes/consequences andMSolutions
Only the red segments
in the PARKTRONIC
warning displays are lit.
You also hear a warning
tone for approximately
two seconds.
PARKTRONIC is then
deactivated and the
indicator lamp on the
PARKTRONIC button
lights up.PARKTRONIC has malfunctioned and has switched off.
XIf problems persist, have PARKTRONIC checked at a qualified
specialist workshop.
Only the red segments
in the PARKTRONIC
warning displays are lit.
PARKTRONIC is then
deactivated.The PARKTRONIC sensors are dirty or there is interference.
XClean the PARKTRONIC sensors (Ypage 335).
XSwitch the ignition back on.
The problem may be caused by an external source of radio or
ultrasound waves.
XSee if PARKTRONIC functions in a different location.
Active Parking Assist
General notes
Active Parking Assist is an electronic parking
aid with ultrasound. It measures the road on
both sides of the vehicle. A parking symbol
indicates a suitable parking space. Active
steering intervention and brake application
can assist you during parking and when exit-
ing a parking space. You may also use
PARKTRONIC (
Ypage 199).
Important safety notes
Active Parking Assist is merely an aid. It is not
a replacement for your attention to your
immediate surroundings. You are always
responsible for safe maneuvering, parking
and exiting a parking space. Make sure that
no persons, animals or objects are in the
maneuvering range.
When PARKTRONIC is switched off, Active
Parking Assist is also unavailable.
GWARNING
While parking or pulling out of a parking
space, the vehicle swings out and can drive
onto areas of the oncoming lane. This could
result in a collision with another road user.
There is a risk of an accident.
Pay attention to other road users. Stop the
vehicle if necessary or cancel the Active Park- ing Assist parking procedure.
!If unavoidable, you should drive over
obstacles such as curbs slowly and not at a
sharp angle. Otherwise, you may damage
the wheels or tires.
Active Parking Assist may possibly indicate
parking spaces which are not suitable for
parking, for example:
Rwhere parking or stopping is prohibited
Rin front of driveways or entrances and exits
Ron unsuitable surfaces
202Driving systems
Driving and parking