2015 MERCEDES-BENZ S-Class Pre safe function

In addition to the message shown in the mul-
tifunction display, you will then hear a warn-
ing tone.
X If necessary, take a break.
X Confirm the message by pressing the a
button on the steering wheel.
On long journeys, take regular breaks in good time to allow yourself to rest properly. If you
do not take a break and ATTENTION ASSIST
continues to detect increasing lapses in con-centration, you will be warned again after
15 minutes at the earliest. This will only hap-
pen if ATTENTION ASSIST still detects typical indicators of fatigue or increasing lapses in
concentration.
If a warning is output in the multifunction dis-
play, a service station search is performed in
COMAND. You can select a service station
and navigation to this service station will then
begin. This function can be activated and
deactivated in COMAND. 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 high-beam headlamps. This enables you to see the road's course and any obstacles in
good time. When pedestrian recognition is active, pedestrians recognized by the system
are visually highlighted in color in the Night
View Assist Plus display with small frame cor- ners.
In addition, an infrared camera is integrated
into the radiator trim :. The camera helps
detect pedestrians and animals. Observe the notes on cleaning the infrared camera
(Y page 417).
i Infrared light is not visible to the human
eye and therefore does not glare. Night
View Assist Plus can therefore remain
switched on even if there is oncoming traf- fic.
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 if:
R if there is poor visibility, e.g. due to snow,
rain, fog or spray
R if the windshield is dirty, fogged 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 grill is dirty, fogged 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. 266
Driving systemsDriving and parking

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, e.g.
trucks, for a prolonged time.
Warning display :
Warning display
Active Blind Spot Assist is not operational at
speeds below approximately 20 mph
(30 km/h). Vehicles in the monitoring range
are then not indicated.
If a vehicle is detected within the blind spot
monitoring range at speeds above 20 mph
(30 km/h), warning lamp :on the corre-
sponding side lights up red. This warning is
always emitted when a vehicle enters the
blind spot monitoring range from behind or
from the side. When you overtake a vehicle,
the warning only occurs if the difference in
speed is less than 7 mph (12 km/h).
If you select the reverse gear, Active Blind
Spot Assist is not operational.
The brightness of the warning lamps is auto-
matically adapted to the brightness of the
surroundings. When Active Blind Spot Assist is activated,
gray radar waves propagating backwards
appear next to the vehicle in the assistance
display in the multifunction display. Above a
speed of 20 mph (30 km/h), the color of the
radar waves in the assistance display
changes to green ;. Active Blind Spot Assist
is then ready for use.
Visual and acoustic collision warning
If you switch on the turn signals to change
lanes and a vehicle is detected in the side
monitoring range, you receive a visual and
acoustic collision warning. You will then hear a double warning tone and red warning
lamp :flashes. If the turn signal remains on,
detected vehicles are indicated by the flash-
ing of red warning lamp :. There are no fur-
ther warning tones.
Course-correcting brake application
If Active Blind Spot Assist detects a risk of a
lateral collision in the monitoring range, a
course-correcting brake application is carried
out. This is meant to assist you in avoiding a
collision. G
WARNING
A course-correcting brake application cannot always prevent a collision. There is a risk of an
accident.
Always steer, brake or accelerate yourself,
especially if Active Blind Spot Assist warns
you or makes a course-correcting brake appli-
cation. Always maintain a safe distance at the sides. 272
Driving systemsDriving an
d parking

If a course-correcting brake application
occurs, red warning lamp :flashes in the
exterior mirror and a dual warning tone
sounds. In addition, display ;underlining
the danger of a side collision appears in the
multifunction display.
In very rare cases, the system may make an
inappropriate brake application. A course-
correcting brake application may be interrup-
ted at any time if you steer slightly in the
opposite direction or accelerate.
The course-correcting brake application is
available in the speed range between 20 mph (30 km/h) and 120 mph (200 km/h).
Either no braking application, or a course-
correcting brake application adapted to the
driving situation occurs if:
R there are vehicles or obstacles, e.g. crash
barriers, located on both sides of your vehi-
cle.
R a vehicle approaches you too closely at the
side.
R you have adopted a sporty driving style with
high cornering speeds.
R you clearly brake or accelerate.
R a driving safety system intervenes, e.g.
ESP ®
or PRE-SAFE ®
Brake.
R ESP ®
is switched off.
R a loss of tire pressure or a defective tire is
detected.
Switching on Active Blind Spot Assist X Make sure that Active Blind Spot Assist is
activated in the on-board computer
(Y page 309).
X Turn the SmartKey to position 2in the igni-
tion lock.
Warning lamps :in the exterior mirrors
light up red for approximately 1.5 seconds. Gray radar waves propagating backwards
appear next to the vehicle in the assistance
display in the multifunction display. Active Lane Keeping Assist General notes
Active Lane Keeping Assist monitors the area
in front of your vehicle by means of camera
system :at the top of the windshield. Vari-
ous different areas to the front, rear and side of your vehicle are also monitored with the aid
of the radar sensor system. Active Lane Keep-
ing Assist detects lane markings on the road
and can warn you before you leave your lane
unintentionally. If you do not react to the
warning, a lane-correcting application of the
brakes can bring the vehicle back into the
original lane.
If you select km kmin the Display Unit
Display Unit
Speed-/Odometer:
Speed-/Odometer: function on the on-board
computer (Y page 312), Active Lane Keeping
Assist is activated starting at a speed of
60 km/h. If the miles milesdisplay unit is selected,
the assistance range begins at 40 mph.
Important safety notes
If you fail to adapt your driving style, Active
Lane Keeping Assist can neither reduce the
risk of accident nor override the laws of phys- ics. Active Lane Keeping Assist cannot take
account of road and weather conditions. It
may not recognize traffic situations. Active
Lane Keeping Assist is only an aid. You are
responsible for the distance to the vehicle in
front, for vehicle speed, for braking in good
time and for staying in your lane.
Active Lane Keeping Assist cannot continu-
ously keep your vehicle in its lane. Driving systems
273Driving and parking Z

addition, a lane with lane markings on both
sides must be recognized.
In the case of a broken lane marking being
detected, a lane-correcting brake application can only be made if a vehicle has been detec-
ted in the adjacent lane. Oncoming vehicles,
overtaking vehicles and vehicles in adjacent
lanes can be detected.
i A further lane-correcting brake applica-
tion can only occur after your vehicle has
returned to the original lane.
No lane-correcting brake application occurs
if:
R you clearly and actively steer, brake or
accelerate.
R you cut the corner on a sharp bend.
R you have switched on the turn signal.
R a driving safety system intervenes, e.g.
ESP ®
, PRE-SAFE ®
Brake or Active Blind
Spot Assist.
R you have adopted a sporty driving style with
high cornering speeds or high rates of
acceleration.
R ESP ®
is switched off.
R the transmission is not in position D.
R a loss of tire pressure or a defective tire has
been detected and displayed.
R an obstacle in the lane in which you are
driving has been detected.
Active Lane Keeping Assist may not detect
other road users or traffic situations. An inap- propriate brake application may be interrup-
ted at any time if you:
R steer slightly in the opposite direction
R switch on the turn signal
R clearly brake or accelerate
A lane-correcting brake application is inter-
rupted automatically if:
R a driving safety system intervenes, e.g.
ESP ®
, PRE-SAFE ®
Brake or Active Blind
Spot Assist.
R lane markings can no longer be recognized. Switching on Active Lane Keeping Assist
X
Press button ;.
Indicator lamp :lights up. The Lane Lane
Keeping Assist On
Keeping Assist On message appears in
the multifunction display. If all conditions
have been satisfied, a warning or steering
intervention may be made.
If you drive at speeds above 40 mph
(60 km/h) and lane markings are detected, the lines in the assistance graphics display(Y page 307) are shown in green. Active
Lane Keeping Assist is ready for use.
X To switch off: press button;.
Indicator lamp :goes out. The Active
Lane Keeping Assist is deactivated. The
Lane Keeping Assist Off Lane Keeping Assist Off message
appears in the multifunction display.
Selecting Standard or Adaptive setting X In the DriveAssist
DriveAssist menu on the on-board
computer, select the Active Lane Keep‐
Active Lane Keep‐
ing Assist
ing Assist function (Ypage 310).
X Select Standard
Standard orAdaptive
Adaptive.
When Standard
Standard is selected, no warning
vibration occurs if:
R you switch on the turn signals. In this
event, the warnings are suppressed for a
certain period of time.
R a driving safety system intervenes, such
as ABS, BAS or ESP ®
.
When Adaptive
Adaptive is selected, no warning
vibration occurs if: Driving systems
275Driving and parking Z

R
you switch on the turn signals. In this
event, the warnings are suppressed for a
certain period of time.
R a driving safety system intervenes, e.g.
ABS, BAS or ESP ®
.
R you accelerate hard, e.g. kickdown.
R you brake hard.
R you steer actively, e.g. swerve to avoid an
obstacle or change lanes quickly.
R you cut the corner on a sharp bend.
In order that you are warned only when nec-
essary and in good time if you cross the lane marking, the system recognizes certain con-
ditions and warns you accordingly.
The warning vibration occurs earlier if:
R you approach the outer lane marking on a
bend.
R the road has very wide lanes, e.g. a high-
way.
R the system recognizes solid lane markings.
The warning vibration occurs later if:
R the road has narrow lanes.
R you cut the corner on a bend. PLUG-IN HYBRID operation
Points to remember
General notes Hybrid technology combines a fuel efficient
internal combustion engine with a powerful
electric motor. In HYBRIDmode, the hybrid
system automatically selects the most effi-
cient operating mode for every driving situa-
tion. Drive the vehicle in the usual manner.
To save fuel, in HYBRIDmode, the hybrid
system switches off the combustion engine
as often as possible during the journey when power output requirements are low. When
power output requirements are low, the elec-
tric motor powers the vehicle. The engine is
switched on, even while the vehicle is in
motion, when a higher power output is
required. The engine is usually switched off when the vehicle is stationary. Consequently,
there is usually no engine idling as with com-
bustion engine vehicles.
For pulling away and accelerating, the electric motor supports the internal combustion
engine using the power stored in the high-
voltage battery. This energy is also used for
driving in partially electric mode, to operate
the electric refrigerant compressor and sup-
port the 12 V on-board electrical system. In
this way the hybrid drive helps to reduce your
vehicle's fuel consumption.
Observe the driving tips on PLUG-IN HYBRID
operation (Y page 287).
Recuperative Brake System If you release the accelerator pedal when the
vehicle is in motion, overrun recuperation is
initiated. The electric motor is operated as a
generator when in overrun mode and when
you brake. Hybrid technology converts the
kinetic energy of the vehicle into electricity
and stores it in the high-voltage battery.
Observe the important safety notes for the
Recuperative Brake System (Y page 48). Important safety notes
If the engine is switched off by the ECO start/
stop function and you open the driver's door:
R a message appears in the multifunction dis-
play and
R a warning tone sounds
Further information (Y page 340).
All of the vehicle's systems remain active, if:
R the vehicle is stationary
R the combustion engine is switched off and
R the READY indicator in the instrument clus-
ter lights up
If you remove your foot from the brake pedal
while in transmission position D or R, the
vehicle may pull away automatically.
Observe the notes on the READY display of
the ECO start/stop function (Y page 288).276
PLUG-IN HYBRID operationDriving and pa
rking

Additional point of resistance in the hap-
tic accelerator pedal
The maximum available electric performance is indicated by a tangible point of resistance
in the haptic accelerator pedal.
The additional point of resistance is available
in E-MODE operating mode (Y page 280)
If you depress the haptic accelerator pedal
beyond the pressure point, the combustion
engine is switched on.
Double pulses in the haptic accelerator
pedal
A tangible double pulse in the haptic acceler- ator pedal gives you a recommendation to
release the accelerator pedal. By this means, in HYBRID, E-MODEorE-SAVE operating
mode the combustion engine can be switched
off and disconnected from the power train
(overrun mode).
The double pulse is available in drive program
E+ (Ypage 285).
After the accelerator pedal has been
released, the coasting characteristics of the
vehicle are adapted to the traffic conditions.
To avoid getting too close to the vehicle in
front, you must apply the brakes manually
when necessary.
Driving tips General driving tips
Drive carefully and maintain a safe distance
from the vehicle in front. Avoid frequent and
sudden acceleration as well as abrupt brak-
ing.
During partial electric driving, pulling away
and acceleration, the electric motor supports
the internal combustion engine.
During overrun in transmission position Dand
braking, the electric motor will operate as a
generator.
Further information on the ECO start/stop
function (Y page 288).
Additional driving tips (Y page 224).Stationary vehicle
If the vehicle is stopped, the combustion
engine is, for the most part, switched off.
Automatic climate control continues to func-
tion. The electromechanically assisted steer-
ing gear allows you to use the power steering
without reduced comfort.
Acceleration
Depending on the operating mode, pulling
away and driving under low load conditions
are performed:
R entirely by electric propulsion
R in combination with the internal combus-
tion engine
When accelerating at an increased or full
load, boost mode is utilized. The electric
motor supports the internal combustion
engine by providing additional torque when
the accelerator is depressed rapidly.
Overrun mode or braking
There are three possible operating modes
when the hybrid vehicle is decelerating:
R energy recovery takes place even when the
vehicle is decelerating purely in overrun
mode (Y page 276). The electric motor
operates as a generator and stores the
recovered energy in the high-voltage bat-
tery.
R when the brakes are applied lightly, the
vehicle is slowed down further by the elec-
tric motor. This increases the energy recov- ery taking place (Y page 276). The electric
motor operates as a generator and stores
the recovered energy in the high-voltage
battery.
R when the brakes are applied with greater
force, the service brakes are also used to
slow the vehicle down. The two systems
work together.
Urban driving
Energy is recuperated during frequent decel-
eration and stopping in city traffic. PLUG-IN HYBRID operation
287Driving and parking Z

HYBRID
HYBRID
Operating mode display (PLUG-IN
hybrid vehicles) (Y
page 279)
Electric range (PLUG-IN HYBRID
vehicles)
ë HOLD function (Y page 242)
j Active Parking Assist (Y page 251)
_ Adaptive Highbeam Assist Plus
(Ypage 153)
a DISTRONIC PLUS Steering Assist
and Stop&Go Pilot (Y page 240)
Additional speedometer
(Y page 313) Head-up display
General notes The head-up display projects information
from the navigation system and the driver
assistance system above the dashboard into
the driver's field of vision.
A requirement for the display of the contents
is that the following functions are available in the vehicle and are switched on:
R Cruise control
R DISTRONIC PLUS
R Navigation
The head-up display allows the driver to see
all of the information without having to take
his eyes off the road.
Important safety notes The head-up display is only an aid and is not a
substitute for attentive driving.
The visibility of the head-up display is influ-
enced by the following conditions:
R the driver's seat position
R the positioning of the display image
R the general ambient light
R sunglasses with polarization filters
R Wet roads
R blocking of sunlight by objects on the dis-
play cover In the event of extreme sunlight, sections of
the display may fade. This can be reversed by
switching the head-up display off and on
again.
i Vehicles with the head-up display are
equipped with a special windshield. Should repairs be necessary, have the windshield
replaced at a qualified specialist workshop.
Displays and operation Switching the head-up display on or off
X
Press button :.
When the head-up display is switched on,
the display appears in the driver's field of
vision.
AMG vehicles: press button :to change
from Standard on the AMG display and then press button :to turn off the head-up dis-
play. Displays and operation
297On-board computer and displays Z

X
Press the 6button to switch to the
redial memory.
X Press the :or9 button to select the
desired name or number.
X Press the 6ora button to start dial-
ing.
or X To exit the redial memory: press the
~ or% button. Assistance graphic menu
X
Use ò on the steering wheel to call up
the list of menus.
X Press the :or9 button on the steer-
ing wheel to select the Assistance
AssistanceInfo
Info
Display
Display menu.
X Confirm by pressing aon the steering
wheel.
The multifunction display shows the
DISTRONIC PLUS distance display in the
assistance graphic.
X Press :to display the ATTEN-
TION ASSIST assessment.
The assistance graphic displays the status of and information from the following driving
systems or driving safety systems:
R DISTRONIC PLUS (Y page 237)
R Spotlight function of Night View Assist Plus
(Y page 312)
R Distance warning and the autonomous
braking function COLLISION PREVENTION
ASSIST PLUS (Y page 79)
R PRE-SAFE ®
Brake (Y page 84) R
Active Blind Spot Assist (Y page 270)
R ATTENTION ASSIST (Y page 264)
R Active Lane Keeping Assist (Y page 273) Maintenance menu
Introduction In the
Service Service menu, you have the following
options:
R Calling up display messages in message
memory (Y page 316)
R Restarting the tire pressure loss warning
system (Y page 452)
R Checking the tire pressure electronically
(Y page 449)
R Calling up the service due date
(Y page 410).
R Displaying the coolant temperature (hybrid
or PLUG-IN HYBRID vehicles)
(Y page 307)
R Checking the engine oil level using the on-
board computer (Y page 407) (S 600, S
600 MAYBACH and S 65 AMG only)
Displaying the coolant temperature The
Coolant Coolant submenu is only present on
hybrid or plug-in hybrid vehicles.
X Use ò on the steering wheel to call up
the list of menus.
X Press the :or9 button on the steer-
ing wheel to select the Service Servicemenu.
X Confirm by pressing aon the steering
wheel. Menus and submenus
307On-board computer and displays Z