2015 MERCEDES-BENZ S-COUPE wheel

Displaying the attention level
You can have current status information dis-
played in the assistance menu of the on-
board computer.
X Select the Assistance display for Attention
Assist using the on-board computer( Y page 164).
The following information is displayed: R length of the journey since the last break.
R the attention level determined by ATTEN-
TION ASSIST, displayed in a bar display in
five levels from high to low.
R if ATTENTION ASSIST is unable to calculate
the attention level and cannot output a
warning, the
System Passivemessage
appears. The bar display then changes the
display, e.g. if you are driving at a speed
below 37 mph (60 km/h) or above 124 mph
(200 km/ h).
Activating ATTENTION ASSIST
X
Activate ATTENTION ASSIST using the on-
board computer ( Ypage 164).
The system determines the attention level
of the driver depending on the setting
selected:
Standard selected: the sensitivity with
which the system determines the attention
level is set to normal.
Sensitive selected: the sensitivity is set
higher. The attention level detected by Atten-
tion Assist is adapted accordingly and the
driver is warned earlier. When ATTENTION ASSIST is deactivated, the
é symbol appears in the multifunction
display in the assistance graphic display.
When ATTENTION ASSIST has been deactiva- ted, it is automatically reactivated after the
engine has been stopped. The sensitivity
selected corresponds to the last selection
activated (standard/sensitive).
Warning in the multifunction display
If fatigue or increasing lapses in concentra-
tion are detected, a warning appears in the
multifunction display:
Attention Assist:
Take a break!
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 minute sat 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.
Driving systems149
Driving an d parking
Z

ous different areas to the front, rear and sideof 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
kmin theDisplay Unit
Speed-/Odometer:function on the on-board
computer ( Ypage 164), Active Lane Keeping
Assist is activated starting at a speed of
60 km/h. If the
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.
GWARNING
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 not give a warning or 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 reflections (e.g. when the road
surface is wet)
R the windshield is dirty, fogged up, damaged
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 there are no, several or unclear lane mark-
ings for a lane, e.g. in areas with road con-
struction work
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 ormerge
R the road is narrow and winding
R there are strong shadows cast 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 in 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 meant to assist you in bringing
the vehicle back to the original lane.
156Driving systems
Driving and parking

GWARNING
A lane-correcting brake application cannot
always bring the vehicle back into the originallane. 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 vehicle speed.
This function is available in the range between
40 mph and 120 mph (60 km/h and
200 km/h).
A lane-correcting brake application can be
made after driving over a lane marking rec-
ognized as being solid or broken. Before this,
a warning must be given by means of inter-
mittent vibration in the steering wheel. In
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.
iA further lane-correcting brake applica-
tion can only occur after your vehicle has
returned to the original lane. No lane-correcting brake application occursif:
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.
Information in the Digital Operator's Man- ual
In the Digital Operator's Manual you can find
information about:
R Switching on Active Lane Keeping Assist
Driving systems157
Driving and parking
Z

Operating the on-board computer
:Multifunction display
;Right control panel
=Left control panel
X To activate the on-board computer: turn
the SmartKey to position 1in the ignition
lock.
You can control the multifunction display and
the settings in the on-board computer using
the buttons on the multifunction steeringwheel.
Left control panel
òR Calls up the main menu
9 :Press briefly:
R Scrolls in lists
R Selects a menu or function
R In the
Radio/Mediamenu:
opens the track or station list
and selects an audio track or
video scene
R In the
Telephonemenu:
switches to the phone book and
selects a name or a telephonenumber
9 :Press and hold:
R Rapid scrolling in all lists
R In the
Radio/Mediamenu:
selects a station, audio track or
video scene using rapid scrolling
R In the
Telephonemenu: starts
rapid scrolling if the phone book is open
aR In all menus: confirms the selec-
ted entry in the list
R In the
Radio/Mediamenu:
opens the list of available radio
sources/media
R In the
Telephonemenu:
switches to the phone book and
starts dialing the selected num-ber
ñSwitches off the Voice Control Sys-
tem; see the separate operating
instructions
%Press briefly:
R Back
R In the
Radio/Mediamenu: dese-
lects the track or station list or
list of available radio sources/media
R Hides display messages
R Exits the telephone book/redialmemory
%Press and hold:
R Calls up the standard display in the
Tripmenu
Right control panel
~RRejects or ends a call
R Exits phone book/redial mem- ory
6RMakes or accepts a call
R Switches to the redial memory
Displays and operation161
On-board computer and displays
Z

In the Settings menu, in the submenu head-up display, you have the following settings options:R Switching other displays on/off ( Ypage 164)
R Setting the position ( Ypage 164)
R Setting the brightness ( Ypage 164)
Menus and submenus
Menu overview
Press the òbutton on the steering wheel
to call up the list of menus and select a menu.
Operating the on-board computer ( Y page 161).
You can find more information on the individ-
ual menus in the Digital Operator's Manual.
Depending on the equipment installed in the
vehicle, you can call up the following menus:
R
Tripmenu
R
Navimenu (navigation instructions)
R
Radiomenu
R
Mediamenu
R
Telephonemenu
R
Assistance Graphicmenu
R
Servicemenu
R
Settingsmenu
R
AMGmenu in AMG vehicles
164Menus and submenus
On-board computer and displays

Display messages
Introduction
General notes
This section describes display messages relevant to safety together with their solutions. A
description of other messages and their solutions can be found in the Digital Operator's Man- ual.
Display messages appear in the multifunction display.
Display messages with graphic displays may be shown in simplified form in the Operator's
Manual and may therefore differ from the multifunction display.
Please respond in accordance with the display messages and follow the additional notes in this Operator's Manual.
With certain display messages, you will also hear a warning tone.
You can hide the display messages. The display messages are then stored in the message
memory. Rectify the cause of a display message as soon as possible.
When you stop and park the vehicle, please observe the notes on the HOLD function ( Y page 138) and parking ( Ypage 125).
Hiding display messages
X
Press the aor% button on the steering wheel to hide the display message.
The display message is cleared.
The multifunction display shows high-priority display messages in red. Some high-priority dis- play messages cannot be hidden.
The multifunction display shows these messages continuously until the causes for the mes-
sages have been remedied.
Message memory
The on-board computer saves certain display messages in the message memory. You can call
up the display messages:
X Use ò on the steering wheel to call up the list of menus.
X Press the :or9 button on the steering wheel to select the
Servicemenu.
X Confirm by pressing aon the steering wheel.
X Press :or9 to select the message memory.
If there are no display messages, you will see
No Messagesin the multifunction display.
If there are display messages, the number of messages stored is shown.
X Press ato confirm.
X Press the :or9 button to scroll through the display messages.
Display messages165
On-board computer and displays
Z

Display messagesPossible causes/consequences andMSolutions
The brake system continues to function normally, but without the
functions listed above. The wheels could therefore lock if you
brake hard, for example.
The steerability and braking characteristics may be severely affec-ted. The braking distance in an emergency braking situation can
increase.
If ESP ®
is not operational, ESP ®
is unable to stabilize the vehicle.
There is an increased risk of skidding and an accident.
X Drive on carefully.
X Visit a qualified specialist workshop immediately.
÷
Inoperative See
Operator's Manual
ESP ®
, BAS, PRE

Tires
Display messagesPossible causes/consequences andMSolutions
Check TiresThe tire pressure in one or more tires has dropped significantly.
The wheel position is displayed in the multifunction display.
A warning tone also sounds.
GWARNING
With tire pressures which are too low, there is a risk of the fol-
lowing hazards:
R they may burst, especially as the load and vehicle speed
increase.
R they may wear excessively and/or unevenly, which may greatly
impair tire traction.
R the driving characteristics, as well as steering and braking, may
be greatly impaired.
There is a risk of an accident.
X Stop the vehicle without making any sudden steering or braking
maneuvers. Pay attention to the traffic conditions as you do so.
X Secure the vehicle against rolling away ( Ypage 125).
X Check the tires and, if necessary, follow the instructions for a
flat tire ( Ypage 220).
X Check the tire pressure ( Ypage 246).
X If necessary, correct the tire pressure.
Warning Tire MalZ
function
The tire pressure in one or more tires has dropped suddenly. The
wheel position is shown in the multifunction display.
GWARNING
If you drive with a flat tire, there is a risk of the following hazards:
R a flat tire affects the ability to steer or brake the vehicle.
R you could lose control of the vehicle.
R continued driving with a flat tire will cause excessive heat build-
up and possibly a fire.
There is a risk of an accident.
X Stop the vehicle without making any sudden steering or braking
maneuvers. Pay attention to the traffic conditions as you do so.
X Secure the vehicle against rolling away ( Ypage 125).
X Check the tires and, if necessary, follow the instructions for a
flat tire ( Ypage 220).
Display messages175
On-board computer and displays
Z