
R
the lane markings on the road are unclear,
e.g. near roadworks.
R the lane markings change quickly, e.g.
lanes branch off, cross one another or
merge.
R the road is narrow and winding.
Lane Keeping Assist cannot detect road and
traffic conditions. It is not a substitute for
attentive driving. You are responsible for the
vehicle's speed, braking in good time, and
steering correctly. Always adapt your driving
style to suit the prevailing road and weather
conditions. Always pay attention to traffic
conditions
and your surroundings. Otherwise,
you may fail to recognize dangers in time,
cause an accident and injure yourself and
others.
General notes Lane Keeping Assist monitors the area in
front of your vehicle by means of a
camera
:
at the top of the windshield. Lane
Keeping Assist detects lane markings on the
road and warns you before you leave your
lane unintentionally.
If you have selected km as the display unit in
the Display Unit Speed-/
Odometer(Y page 238) function in the on-
board computer, Lane Keeping Assist assists
you at speeds above 60 km/h. If miles is
selected as the display unit, the assistance
range starts at 40 mph.
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
steering wheel for up to 1.5 seconds.
Switching on Lane Keeping Assist
X
Switch on Active Lane Keeping Assist using
the on-board computer; to do so, select
Standard or Adaptive(Y page 237).
Symbol : appears in the multifunction
display.
If your speed exceeds
40 mph (60 km/h)
and lane markings are detected,
symbol : is highlighted. Lane Keeping
Assist is ready for use.
Standard
If 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 ®
.
Adaptive
If Adaptive 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, 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 lane quickly.
R you cut the corner on a sharp bend.
In order that you are warned only when
necessary and in good time if you cross the Driving systems
217
Driving and parking Z

R
the lane markings change quickly, e.g.
branch off, cross or merge.
R the road is narrow and winding.
Active Lane Keeping Assist cannot detect
road and traffic conditions. It is not a
substitute for attentive driving. You are
responsible
for the vehicle's speed, braking in
good time and steering correctly. Always
adapt your driving style to suit the prevailing
road and weather conditions. Always pay
attention to traffic conditions and your
surroundings. Otherwise, you may fail to
recognize dangers in time, cause an accident
and injure yourself and others.
General notes Active Lane Keeping Assist monitors the area
in front of your vehicle by means of a
camera
:
at the top of the windshield. Active
Lane Keeping Assist detects lane markings on
the road and warns 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.
In the Display Unit Speed-/Odometer:
on-board computer function (Y page 238), if
you select the km display unit, Active Lane-
Keeping Assist is activated at a speed of
60 km/h. If the Miles display unit is selected,
the assistance range begins at 40 mph.
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
steering wheel for up to 1.5 seconds.
In order that you are warned only when
necessary and in good time if you cross the
lane marking, the system recognizes certain
conditions 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
freeway.
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.
Lane-correcting brake application G
WARNING
Active Lane Keeping Assist does not keep
your vehicle in its lane. It is only an aid
designed
to assist driving. It is not a substitute
for attentive driving. In some cases, the lane-
correcting brake application is not sufficient
to bring your vehicle back to the original lane.
In such cases, you must steer the vehicle
yourself to ensure that it does not leave the
lane.
Active Lane Keeping Assist does not detect
road and traffic conditions. Always make sure
that there is sufficient distance to the side for
other traffic or obstacles. In rare cases,
unclear markings or particular structures on
the roadway can be recognized as solid lane
markings. An inappropriate brake application,
e.g. after intentionally driving over a solid lane
marking, may be interrupted at any time by
steering slightly in the opposite direction.
Active Lane Keeping Assist cannot take
weather conditions into account.
You are responsible for the driving at
appropriate speeds, braking in good time, and
steering correctly. Always adapt your driving
style to suit the prevailing road and weather
conditions. Always pay attention to traffic
conditions and your surroundings. Otherwise, 222
Driving systems
Driving and parking

Displays and operation
Instrument cluster
:
Fuel gauge
; Time
= Speedometer with segments (Y page 228)
? Multifunction display ( Y page 230)
A Tachometer (Y page 228)
B Coolant temperature ( Y page 227)
C Instrument cluster lighting (Y page 227)
i You can set the time using COMAND; see the separate Operating Instructions. Instrument lighting
The lighting in the instrument cluster, in the
displays and the controls in the vehicle
interior
can be adjusted using the brightness
control knob.
The brightness control knob is located on the
bottom left of the instrument cluster
(Y page 31).
X Turn the brightness control knob clockwise
or counter-clockwise.
If the light switch is set to Ã, T or
L, the brightness is dependent upon
the brightness of the ambient light. i
The light sensor in the instrument cluster
automatically controls the brightness of
the multifunction display.
In daylight, the displays in the instrument
cluster are not illuminated. Coolant temperature display
G
WARNING
Driving when your engine is overheated can
cause
some fluids which may have leaked into
the engine compartment to catch fire. You
could be seriously burned. Displays and operation
227
On-board computer and displays
Z

Steam from an overheated engine can cause
serious
burns which can occur just by opening
the engine hood. Stay away from the engine
if you see or hear steam coming from it.
Stop the vehicle in a safe location away from
other traffic. Turn off the engine, get out of the
vehicle and do not stand near the vehicle until
the engine has cooled down.
! A display message is shown if the coolant
temperature is too high.
If the coolant temperature is over
248 ‡(120 †), do not continue driving. The
engine will otherwise be damaged.
The coolant temperature gauge is in the
instrument cluster on the right-hand side
(Y page 31).
Under normal operating conditions and with
the specified coolant level, the coolant
temperature may rise to 248 ‡ (120 †). Tachometer
! Do not drive in the overrevving range, as
this could damage the engine.
The
red band in the tachometer indicates the
engine's overrevving range.
The fuel supply is interrupted to protect the
engine when the red band is reached. Outside temperature display
G
WARNING
The outside temperature indicator is not
designed to serve as an ice-warning device
and is therefore unsuitable for that purpose.
Indicated temperatures just above the
freezing
point do not guarantee that the road
surface is free of ice. The road may still be icy,
especially in wooded areas or on bridges.
The outside temperature display is in the
multifunction display ( Y page 230).
Changes in the outside temperature are
displayed after a short delay. Speedometer with segments
The segments in the speedometer indicate
which speed range is available.
R Cruise control activated ( Y page 183):
The segments light up from the stored
speed to the maximum speed.
R DISTRONIC PLUS activated (Y page 185):
One or two segments in the set speed
range light up.
R DISTRONIC
PLUS detects a vehicle in front:
The segments between the speed of the
vehicle in front and the stored speed light
up. Operating the on-board computer
Overview :
Multifunction display
; Right control panel
= Switches on the Voice Control System;
see the separate operating instructions
? Back button
A Left control panel
X To activate the on-board computer:
turn
the SmartKey to position 1 in the ignition
lock. 228
Displays and operation
On-board computer and displays

Multifunction display
Example: multifunction display for DIRECT SELECT
automatic transmission
:
Description field
; Menu bar
= Drive program (Y page 162)
? Transmission position ( Y page 161)
A Permanent display: outside temperature
or speed ( Y page 238)
X To show menu bar ;: press the =
or ; button on the steering wheel.
Menu bar ; disappears after a few seconds.
Text field : shows the selected menu or
submenu as well as display messages.
The following messages may appear in the
multifunction display:
XjY Parking Guidance (Y page 205)
CRUISE Cruise control (
Y page 183)
_ Adaptive Highbeam Assist
(Y page 127)
À ATTENTION ASSIST (Y page 210)
¤ ECO start/stop function
(Y page 157)
à Lane Keeping Assist (Y page 216)
à Active Lane Keeping Assist
(Y page 221)
ë HOLD function ( Y page 196)
Ä PRE-SAFE ®
Brake (Y page 72) Menus and submenus
Menu overview
Press the = or ; button on the
steering wheel to call up the menu bar and
select a menu.
Operating the on-board computer
(Y page 228).
Depending on the equipment installed in the
vehicle, you can call up the following menus:
R Trip menu (Y page 230)
R Navi menu (navigation instructions)
(Y page 232)
R Audio menu (Y page 233)
R Tel menu (telephone) ( Y page 234)
R DriveAssist menu (assistance)
(Y page 236)
R Serv. menu (Y page 238)
R Sett. menu (Y page 238)
R AMG menu in AMG vehicles ( Y page 242) Trip menu
Standard display X
Press and hold the % button on the
steering wheel until the Trip menu with
trip odometer : and odometer ; is
shown. 230
Menus and submenus
On-board computer and displays

Trip computer "From Start" or "From
Reset"
Example: trip computer "From Start"
:
Distance
; Time
= Average speed
? Average fuel consumption
X Press the = or ; button on the
steering wheel to select the Trip menu.
X Press 9 or : to select From Start
or From Reset.
The values in the From Start submenu are
calculated from the start of a journey whilst
the values in the From Reset submenu are
calculated from the last time the submenu
was reset ( Y page 232).
The From Start trip computer is
automatically reset when:
R The
ignition has been switched off for more
than four hours.
R 999 hours have been exceeded.
R 9,999 miles have been exceeded.
The From Reset trip computer is
automatically reset if the value exceeds
9,999 hours or 99,999 miles.
ECO display Example: ECO display X
Press the = or ; button on the
steering wheel to select the Trip menu.
X Select ECO DISPLAY with 9 or :.
If the ignition remains switched off for longer
than four hours, the ECO display will be
automatically reset.
Further information on the ECO display
(Y page 178).
Displaying the range and current fuel
consumption X
Press the = or ; button on the
steering wheel to select the Trip menu.
X Press the 9
or : button to select the
current fuel consumption (not for AMG
vehicles) and the approximate range.
The approximate range that can be covered
depends on the fuel level and your current
driving style. If there is only a small amount
of
fuel left in the fuel tank, the display shows
a vehicle being refueled C instead of the
range.
Digital speedometer :
Digital speedometer
X Press the = or ; button on the
steering wheel to select the Trip menu.
X Press the 9
or : button to select the
digital speedometer. Menus and submenus
231
On-board computer and displays Z

Resetting values
Example: resetting the trip computer "From Start"
X
Press the = or ; button on the
steering wheel to select the Trip menu.
X Press the 9 or : button to select the
function that you wish to reset.
X Press the a button.
X Press the : button to select Yes and
press the a button to confirm.
You can reset the values of the following
functions:
R trip odometer
R "From Start" trip computer
R "From Reset" trip computer
R ECO display
i When you reset the values in the "ECO
display", the values in the trip computer
"From start" are likewise reset. When you
reset
the values in the trip computer "From
start", the values in the "ECO display"are
likewise reset. Navigation system menu
Displaying navigation instructions In the
Navi menu, the multifunction display
shows navigation instructions. For more
information on navigation, see the separate
operating instructions.
X Switch on COMAND (see the separate
operating instructions).
X Press the = or ; button on the
steering wheel to select the Navi menu. Route guidance not active
:
Direction of travel
; Current street
Route guidance active No change of direction announced
:
Distance to the destination
; Distance to the next change of direction
= Current street
? Symbol "follow the road's course"
Change of direction announced without a
lane recommendation :
Road into which the change of direction
leads
; Distance to change of direction and visual
distance display
= Change-of-direction icon
When a change of direction has been
announced, you will see visual distance
display ; next to the symbol for change of
direction =. This shortens from the bottom 232
Menus and submenus
On-board computer and displays

Service menu
In the
Serv. menu, you have the following
options:
R calling up display messages in message
memory ( Y page 246)
R restarting the tire pressure loss warning
system (Y page 370)
R checking the tire pressure electronically
(Y page 370)
R calling up when a service is due
(Y page 333) Settings menu
Introduction In the
Sett. menu, you have the following
options:
R change the instrument cluster settings
(Y page 238)
R change the light settings ( Y page 239)
R change the vehicle settings ( Y page 240)
R change the convenience settings
(Y page 241)
R restore the factory settings
(Y page 242)Instrument cluster Selecting the unit of measurement for
distance
The Display Unit Speed-/Odometer:
function allows you to choose whether
certain
displays appear in kilometers or miles
in the multifunction display.
You can determine whether the multifunction
display shows some messages in miles or
kilometers.
X Press the = or ; button on the
steering wheel to select the Sett. menu.
X Press the :
or 9 button to select the
Inst. Cluster submenu.
X Press a to confirm.
X Press the :
or 9 button to select the
Display Unit Speed-/Odometer:
function.
You will see the selected setting: km or
miles.
X Press the a button to save the setting.
The selected unit of measurement for
distance applies to:
R the digital speedometer in the Trip menu
R odometer and the trip odometer
R trip computer
R current consumption and the range
R the navigation instructions in the Navi
menu
R cruise control
R DISTRONIC PLUS
R ASSYST PLUS service interval display
Selecting
the permanent display function
You can determine whether the multifunction
display permanently shows your speed or the
outside temperature.
X Press the = or ; button on the
steering wheel to select the Sett. menu.
X Press the :
or 9 button to select the
Inst. Cluster submenu.
X Press a to confirm.238
Menus and submenus
On-board computer and displays