radiator MERCEDES-BENZ S-CLASS COUPE 2014 Owners Manual

Opening/closing the garage door .. 330
Programming (button in the rear-
view mirror) ................................... 328
Gear indicator (on-board com-
puter) .................................................. 263
Gearshift program
SETUP (on-board computer) ..........2 64
Genuine Mercedes-Benz parts ........... 22
Glove compartment .......................... 315H
Handbrake see Parking brake
HANDS-FREE ACCESS .......................... 96
Hazard warning lamps ......................126
Head restraints
Adjusting ....................................... 109
Adjusting (manually) ..................... .109
Adjusting (rear) .............................. 110
Head-up display
Adjusting the brightness ................ 260
Function/notes ............................ .245
Important safety notes .................. 245
Setting the position ....................... 260
Storing settings (memory func-
tion) ............................................... 120
Switching on or off ......................... 245
Switching the display on/off ......... 259
Headbag
Display message ............................ 276
Headlamp flasher .............................. 126
Headlamps
Misting up ...................................... 130
see Automatic headlamp mode
Heater booster function ................... 152
Heating
see Climate control
High-pressure cleaners .................... 345
Hill start assist .................................. 162
HOLD function
Activating ....................................... 203
Deactivating ................................... 203
Display message ............................ 289
Function/notes ............................ .202
Horn ...................................................... 30 I
Ignition lock see Key positions
Immobiliser .......................................... 80
Indicator and warning lamp
Restraint system ............................ 306
Indicator and warning lamps
COLLISION PREVENTION ASSIST
PLUS .............................................. 309
Coolant .......................................... 307
Engine diagnostics ......................... 307
Indicator lamps
Display message ............................ 279
see Warning and indicator lamps
Indicators
see Turn signals
Insect protection on the radiator .... 338
Instrument cluster
Overview .......................................... 32
Warning and indicator lamps ........... 33
Instrument cluster lighting ................ 34
Intelligent Light System
Activating/deactivating ................. 260
Display message ............................ 281
Overview ........................................ 127
Setting the dipped-beam head-
lamps for driving on the right/left .. 261
Interior lighting
Control .......................................... .130
Emergency lighting ........................ 131
Overview ........................................ 130
Reading lamp ................................. 130
Interior motion sensor
Deactivating ..................................... 82
Function .......................................... .81
Priming ............................................ 81
Switching off .................................... 82
ISOFIX child seat securing system ....62 J
Jack Storage location ............................3 55
Using ............................................. 387
Jump starting (engine) ......................364 12
Index

Perfume atomizer
Operating ....................................... 146
Perfume vial ................................... 146
Problem (malfunction) ...................1 48
Petrol ................................................. .403
Pets in the vehicle ............................... 69
Plastic trim (cleaning instruc-
tions) ................................................. .349
Power closing ...................................... 92
Power socket
Boot ............................................... 324
Power windows
see Side windows
PRE-SAFE ®
(anticipatory occupant
protection)
Operation ......................................... 59
PRE-SAFE ®
(preventive occupant
safety system)
Display message ............................ 272
PRE-SAFE ®
Brake
Activating/deactivating ................. 258
Display message ............................ 273
Function/notes ................................ 77
Important safety notes .................... 78
Warning lamp ................................. 309
PRE-SAFE ®
PLUS (anticipatory
occupant protection PLUS)
Operation ......................................... 59
Program selector button .................. 171
Protection against theft
ATA (Anti-Theft Alarm system) ......... 80
Immobiliser ...................................... 80
Interior motion sensor ..................... 81
Tow-away protectio n ........................81
Protection of the environment
General notes .................................. 22
Pulling away
Automatic transmission ................. 162
General notes ................................ 162
Hill start assist ............................... 162 Q
Qualified specialist workshop ........... 25R
Radiator cover ................................... 338 Radio
Selecting a station ......................... 251
Radio-based vehicle components
Declaration of conformity ................ 24
Reading lamp ..................................... 130
Rear compartment
Setting the air vents ..................... .156
Stowage compartment .................. 317
Rear foglamp
Display message ............................ 280
Switching on/off ........................... 125
Rear lamps
see Lights
Rear seats
Overview .......................................... 40
Rear window blind ............................ 322
Rear window heating
Problem (fault) ............................... 145
Switching on/off ........................... 144
Rear-compartment seat belt sta-
tus indicator ........................................ 48
Rear-view mirror
Anti-dazzle mode (automatic) ....... .119
Dipping (manual )........................... 117
Recuperation display ........................ 247
Refuelling
Fuel gaug e....................................... 32
Important safety notes .................. 175
Refuelling process ......................... 176
see Fuel
Remote control
Auxiliary heating/ventilation .......... 150
Changing the batteries (auxiliary
heating) ......................................... 152
Garage door opener ....................... 328
Programming (garage door
opener) .......................................... 328
Replacing bulbs
General notes ................................ 131
Replacing the battery (auxiliary
heating remote control) .................... 152
Reserve (fuel tank)
see Fuel
Reserve fuel
Display message ............................ 284
Warning lamp ................................. 307
Residual heat (climate control) ........ 14616
Index

Washer fluid
Display message ............................ 298
Wheel and tyre combinations
see Tyres
Wheel bolt tightening torque ........... 391
Wheel chock ...................................... 387
Wheels
Changing a wheel .......................... 385
Changing/replacing ....................... 386
Checking ........................................ 377
Cleaning ......................................... 346
Cleaning (warning) ........................ .386
Fitting a new wheel ........................ 390
Fitting a wheel ............................... 386
Important safety notes .................. 376
Removing a wheel .......................... 390
Storing .......................................... .386
Tightening torque ........................... 391
Wheel size/tyre size ..................... .391
Windowbag
Operation ......................................... 51
Windows
Cleaning ......................................... 346
see Side windows
Windscreen
Demisting ...................................... 143
Infrared reflective .......................... 334
Windscreen washer fluid
see Windscreen washer system
Windscreen washer system
Notes ............................................. 407
Topping up ..................................... 341
Windscreen wipers
Problem (malfunction) ................... 134
Replacing the wiper blades ............ 132
Switching on/off ........................... 131
Winter operation
Important safety notes .................. 378
Radiator cover ............................... 338
Slippery road surfaces ................... 185
Snow chains .................................. 379
Summer tyres ................................ 378
Winter tyres
Limiting the speed (on-board com-
puter) ............................................. 262
M+S tyres ...................................... 378
Wiper blades
Cleaning ......................................... 347 Important safety notes .................. 132
Replacing ....................................... 132
Wooden trim (cleaning instruc-
tions) ................................................. .350
Workshop
see Qualified specialist workshop Index
21

Problem
Possible causes/consequences and
M
MSolutions The coolant tempera-
ture display is showing
more than 120 †. A
display message may
also appear in the mul-
tifunction display and a
warning tone may
sound. The coolant level is too low. The coolant is too hot and the engine
is no longer being cooled sufficiently.
X Stop as soon as possible and allow the engine and the coolant to
cool down.
X Check the coolant level (Y page 340). Observe the warning
notes as you do so and top up the coolant if necessary. If the coolant level is correct, the engine radiator fan may be faulty.
The coolant is too hot and the engine is no longer being cooled
sufficiently.
X If the coolant temperature is below 120 †, you can continue
driving to the nearest qualified specialist workshop.
X Avoid heavy loads on the engine as you do so, e.g. driving in
mountainous terrain and stop-start traffic. Automatic transmission
Important safety notes
G
WARNING
If the engine speed is above the idling speed
and you engage transmission position Dor R,
the vehicle could pull away suddenly. There is a risk of an accident.
When engaging transmission position Dor R,
always firmly depress the brake pedal and do not simultaneously accelerate. G
WARNING
The automatic transmission switches to neu-
tral position Nwhen you switch off the engine.
The vehicle may roll away. There is a risk of an
accident.
After switching off the engine, always switch
to parking position P. Prevent the parked vehi-
cle from rolling away by applying the parking
brake. DIRECT SELECT lever
Overview of transmission positions j
Park position with parking lock
k Reverse gear
i Neutral
h Drive
The DIRECT SELECT lever is on the right of the
steering column.
The DIRECT SELECT lever always returns to
its original position. The current transmission position P,R, Nor Dappears in the transmis-
sion position display (Y page 169) in the mul-
tifunction display. Automatic transmission
167Driving and parking Z

Night View Assist Plus
General notes In addition to the illumination provided by the
normal headlamps, Night View Assist Plus
uses infrared light to illuminate the road.
Night View Assist Plus camera ;picks up the
infrared light and displays a monochrome
image in the multifunction display. The image
shown in the display corresponds to a road lit
up by main-beam headlamps. This enables
you to see the road's course and any obsta-
cles in good time. When pedestrian recogni-
tion is active, pedestrians recognised by the
system are visually highlighted in colour in the Night View Assist Plus display with small
frame corners.
i Infrared light is not visible to the human
eye and therefore does not dazzle. Night
View Assist Plus can therefore remain
switched on even if there is oncoming traf- fic.
In addition, thermal imaging camera :is
integrated in the radiator grille. The camera
helps detect pedestrians and animals.
Observe the notes on cleaning the thermal
imaging camera (Y page 349).
Important safety notes Night View Assist Plus is only an aid and is not
a substitute for attentive driving. Do not rely
on the Night View Assist Plus display. You are responsible for the distance to the vehicle in
front, for vehicle speed and for braking in
good time. Drive carefully and always adapt your driving style to suit the prevailing road
and traffic conditions.
The system may be impaired or may not func-
tion:
R if there is poor visibility, e.g. due to snow,
rain, fog or spray
R if the windscreen is dirty, misted up or cov-
ered, for instance by a sticker, in the vicinity
of the camera
R if the thermal imaging camera in the radia-
tor grille is dirty, misted up or covered
R on bends, hilltops or downhill gradients
R at high outside temperatures
Night View Assist Plus cannot display objects directly in front of or beside the vehicle.
It may be the case that other objects are
marked or highlighted as well as pedestrians
and animals.
Pedestrian and animal recognition General notes
Pedestrian or animal recognition may be
impaired or inoperative if:
R pedestrians or animals are partially or
entirely obscured by other objects, e.g.
parked vehicles
R the silhouette of the pedestrian or of the
animal in the Night View Assist Plus display
is incomplete or interrupted, e.g. by pow-
erful light reflections
R pedestrians or animals do not contrast with
the surroundings
R the camera system no longer recognises
pedestrians as persons due to special
clothing or other objects
R pedestrians are not in an upright position,
e.g. sitting, squatting or lying
R animals are not recognised by the system,
e.g. because of their size or shape
The pedestrian and animal recognition is
deactivated at temperatures above 32 †. The spotlight function and automatic delayed
switch-off are then no longer active. 230
Driving systemsDriving an
d parking

Problems with Night View Assist
Problem
Possible causes/consequences and
M
MSolutions The picture quality of
Night View Assist Plus
has deteriorated. The windscreen is misted up on the inside.
X Fold down the camera cover (Y page 349).
X Demist the windscreen (Y page 143). The windscreen is iced up.
X De-ice the windscreen (Y page 143). The windscreen wipers are smearing the windscreen.
X Replace the wiper blades (Y page 132). The windscreen is smeared after the vehicle has been cleaned in a
car wash.
X Clean the windscreen (Y page 346). The windscreen has been damaged by stone impact in the cam-
era's field of vision.
X Replace the windscreen. The pedestrian and ani-
mal recognition is not
available. The infrared camera in the radiator grille is dirty.
X Use a soft cloth and water to clean the infrared camera. Driving Assistance Plus package
General notes The Active Driving Assistance PLUS package
consists of DISTRONIC PLUS (Y page 191),
Active Blind Spot Assist (Y page 233) and
Active Lane Keeping Assist (Y page 236).
Active Blind Spot Assist General notes
Active Blind Spot Assist monitors the areas
on either side of the vehicle that are not visi-
ble to the driver with two lateral, rear-facing
radar sensors. A warning display in the exte-
rior mirrors draws your attention to vehicles
detected in the monitored area. If you then
switch on the corresponding turn signal to
change lanes, you will also receive a visual
and audible collision warning. If a risk of side impact is detected, corrective braking may
help you avoid a collision. Active Blind Spot
Assist evaluates the free space in the direc-
tion of travel and to the side before making a
course-correcting brake application. For this, Active Blind Spot Assist uses the forward-
facing radar sensors.
Active Blind Spot Assist supports you from a
speed of approximately 30 km/h.
Important safety notes
Active Blind Spot Assist is only an aid and is
not a substitute for attentive driving. Driving systems
233Driving and parking Z

G
WARNING
Active Blind Spot Assist does not react to
vehicles:
R overtaking too closely on the side, placing
them in the blind spot area
R if the difference in the speed of approach
and overtaking is too great
As a result, Active Blind Spot Assist may nei-
ther give warnings nor intervene in such sit-
uations. There is a risk of an accident.
Always pay careful attention to the traffic sit-
uation and maintain a safe distance at the side of the vehicle.
Radar sensors
The Active Blind Spot Assist radar sensors are
integrated into the front and rear bumpers
and behind a cover in the radiator trim. Make sure that the bumpers and the cover in the
radiator trim are free of dirt, ice or slush. The rear sensors must not be covered, e.g. by
bicycle racks or overhanging loads. Following
a severe impact or in the event of damage to the bumpers, have the function of the radar
sensors checked at a qualified specialist
workshop. Active Blind Spot Assist may oth-
erwise no longer function properly.
Monitoring range G
WARNING
Active Blind Spot Assist does not detect all
traffic situations and road users. There is a
risk of an accident.
Always make sure that there is sufficient dis-
tance to the side for other traffic or obstacles. Active Blind Spot Assist monitors the area up
to 3.0 mbehind your vehicle and directly next
to your vehicle, as shown in the diagram.
The detection of vehicles may be impaired in the case of:
R dirt on the sensors or obscured sensors
R poor visibility, e.g. due to rain, snow or
spray
Vehicles in the monitoring range are then not
indicated.
Active Blind Spot Assist may not detect nar-
row vehicles, such as motorcycles or bicy-
cles, or may only detect them too late.
If the lanes are narrow, vehicles driving in the
lane beyond the lane next to your vehicle may
be indicated, especially if the vehicles are not driving in the middle of their lane. This may be
the case if there are vehicles at the edge of
their lane nearest your vehicle.
Due to the nature of the system:
R warnings may be issued in error when driv-
ing close to crash barriers or similar solid
lane borders
R warnings may be interrupted when driving
alongside particularly long vehicles, for
example lorries, for a prolonged time 234
Driving systemsDriving and parking

G
WARNING
Active Lane Keeping Assist cannot always
clearly detect lane markings.
In such cases, Active Lane Keeping Assist
can:
R give an unnecessary warning and then
make a course-correcting brake application
to the vehicle
R neither give a warning nor intervene
There is a risk of an accident.
Always pay particular attention to the traffic
situation and keep within the lane, especially
if Active Lane Keeping Assist alerts you. Ter-
minate the intervention in a non-critical driv-
ing situation.
The system may be impaired or may not func-
tion if:
R there is poor visibility, e.g. due to insuffi-
cient illumination of the road, or due to
snow, rain, fog or spray
R there is glare, e.g. from oncoming traffic,
the sun or reflection from other vehicles
(e.g. if the road surface is wet)
R the windscreen is dirty, misted up, dam-
aged or covered, for instance by a sticker,
in the vicinity of the camera
R the radar sensors in the front or rear bump-
ers or the radiator trim are dirty, e.g.
obscured by snow
R no, or several, unclear lane markings are
present for one lane, e.g. in a construction
area
R the lane markings are worn away, dark or
covered up, e.g. by dirt or snow
R the distance to the vehicle in front is too
small and the lane markings thus cannot be
detected
R the lane markings change quickly, e.g.
lanes branch off, cross one another or
merge
R the road is narrow and winding
R there are highly variable shade conditions
on the road If no vehicle is detected in the adjacent lane
and broken lane markings are detected, no
lane-correcting brake application is made.
Warning vibration through the steering
wheel
A warning may be given if a front wheel
passes over a lane marking. It will warn you by means of intermittent vibration in the steer-
ing wheel for up to 1.5 seconds.
Lane-correcting brake application
If you leave your lane under certain circum-
stances, the vehicle will brake briefly on one
side. This is intended to help you return the
vehicle to the original lane. G
WARNING
A lane-correcting brake application cannot
always bring the vehicle back into the original lane. There is a risk of an accident.
Always steer, brake or accelerate yourself,
especially if Active Lane Keeping Assist warns
you or makes a lane-correcting brake appli-
cation. If a lane-correcting brake application occurs,
display :appears in the multifunction dis-
play. The brake application also slightly
reduces driving speed.
This function is available in the range between
60 km/h and 200 km/h.
A lane-correcting brake application can be
made after driving over a lane marking rec-
ognised as being solid or broken. Before this,
a warning must have been issued by means of
intermittent vibration through the steering Driving systems
237Driving and parking Z

Display messages
Possible causes/consequences and
M
MSolutions Radar sensors
Radar sensors
dirty See Owner's dirty See Owner's
Manual Manual At least one of the following driving systems or driving safety sys-
tems is temporarily restricted or inoperative:
R PRE-SAFE ®
PLUS
R PRE-SAFE ®
Brake
R COLLISION PREVENTION ASSIST PLUS
R Active Lane Keeping Assist
R Active Blind Spot Assist
R DISTRONIC PLUS with Steering Assist and Stop&Go Pilot
Possible causes:
R the sensors in the radiator trim and/or in the bumpers are dirty
R the function of the driving system and/or driving safety system
is impaired due to heavy rain or snow
A warning tone also sounds.
Once the causes listed above no longer apply, the display message
goes out. All driving systems/driving safety systems are operative again.
If the display message does not disappear:
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 178).
X Switch off the engine.
X Clean the sensors (Y page 347) in the following locations:
R in the radiator trim
R in the front bumper
R in the rear bumper, particularly in the middle of the rear
bumper
X Restart the engine.
The display message disappears. ü ü If this symbol appears in the multifunction display, a seat belt
tongue has been inserted into a rear seat belt buckle.
Further information on the status indicator for the rear seat belts
(Y page 48). 274
Display
messagesOn-board computer and displays

Engine
Display messages
Possible causes/consequences and
M
MSolutions +
Top Top
up
upcoolant
coolant See
See
Owner’s Manual
Owner’s Manual The coolant level is too low.
! Avoid making long journeys with too little coolant in the engine
cooling system. The engine will otherwise be damaged.
X Top up the coolant, observing the warning notes before doing so
(Y page 340).
X If the coolant needs topping up more often than usual, have the
engine coolant system checked at a qualified specialist work-
shop. ? ? The fan motor is faulty.
X At coolant temperatures below 125 †, drive to the nearest
qualified specialist workshop.
X Avoid putting the engine under heavy load as you do so, e.g.
driving in mountainous terrain and stop-start traffic. ?
Coolant Stop vehi‐ Coolant Stop vehi‐
cle Switch engine cle Switch engine
off off The coolant is too hot.
A warning tone also sounds.
G WARNING
Never drive with an overheated engine. Driving when your engine is overheated can cause some fluids which may have leaked into
the engine compartment to catch fire.
In addition, steam from an overheated engine can cause serious
burns, which can occur just by opening the bonnet.
There is a risk of injury.
X Stop the vehicle immediately, paying attention to road and traf-
fic conditions, and switch off the engine.
X Secure the vehicle to prevent it from rolling away (Y page 178).
X Wait until the engine has cooled down.
X Make sure that the air supply to the engine radiator is not
blocked, e.g. by frozen slush.
X Do not start the engine again until the display message goes out
and the coolant temperature is below 125 †. The engine may
otherwise be damaged.
X Pay attention to the coolant temperature display.
X If the temperature increases again, visit a qualified specialist
workshop immediately.
Under normal operating conditions and with the specified coolant level, the coolant temperature may rise to 124 †. 282
Display messagesOn-board computer and displays