2011 MERCEDES-BENZ E-CLASS SALOON lane assist

R
a driving safety system intervenes, such as
ABS, BAS or ESP ®
.
R you have switched on the tur nsignals .In
this event, the warnings are suppressed for
a certai nperiod of time.
Lane-correcting brake application
If you leave your lane under certain circum-
stances, the vehicle will brake briefly on one
side. This is designed to help you bring the
vehicle back into the original lane.
This function is available in the range between
60 km/h and 200 km/h.
A lane-correcting brake application can only
be made after driving over a solid, recognis-
able lane marking. Befor ethis, a warning
must be emitted by means of intermittent
vibration in the steering wheel. In addition, a
lane with lane markings on both sides must
be recognised. The brake application also
slightly reduces driving speed.
If a lane-correcting brake application occurs,
the following appears in the multifunction dis-
play: Example: vehicles featuring automatic transmis-
sion with a DIRECT SELECT lever
i
A further lane-correcting brake applica-
tion can only occur after your vehicle has
returned to the original lane. 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. Corrective braking may
not always be sufficient to return your vehicle
to its original lane. In such cases, you must
steer the vehicle yourself to ensure that it
does not leave the lane. Active Lane Keeping Assist cannot detect the
current traffic situation or other road users.
Ensure at all times that there is sufficient lat-
eral distance between you and other road
users or obstacles. In rare cases, broken lines
or certain structures on the road surface may
be detected by the system as solid lane mark-
ings. You can, for example, countersteer gen-
tly at any time to cancel inappropriate braking
action, e.g. if you intentionally drive across a
solid lane marking.
Active Lane Keeping Assist cannot take
weather conditions into account.
You are responsible for the vehicle's speed,
correct steering and for braking in good time.
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
recognise dangers in time, cause an accident
and injure yourself and others.
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 signals.
R a driving safety system intervenes, such as
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 on vehicles with a trailer tow hitch, the
electrical connection to the trailer has been
correctly established.
R ESP ®
is deactivated.
R the transmission is not in position D.
R a loss of tyre pressure or a defective tyre
has been detected and displayed. 220
Driving systemsDriving and parking

Active Lane Keeping Assist does not detect
road and traffic conditions. An inappropriate
brake applicatio nmay be interrupted at any
time if:
R you steer slightly in th eopposite direction.
R you use a turn signal.
R you clearly brake or accelerate.
Al ane-correcting brake applicatio nis inter-
rupted automatically if:
R a driving safety system intervenes, such as
ESP ®
, PRE-SAFE ®
Brake or Active Blind
Spot Assist.
R lane markings can no longer be recognised.
Activating Active Lane Keeping Assist Example: vehicles featuring automatic transmis-
sion with a DIRECT SELECT lever
X Activate Active Lane Keeping Assist using
the on-board computer (Y page 242).
Symbol :appears in the multifunction
display.
If you drive at speeds above 60 km/h and
lane markings are detected, symbol :is
highlighted. Active Lane Keeping Assist is
ready for use.
Trailer towing
If you attach a trailer, make sure that you have
correctly established the electrical connec-
tion. This can be accomplished by checking
the trailer lighting. Towing
atrailer Notes on towing
atrailer
Important safety notes G
WARNING
When reversing the vehicle towards the
trailer, make sure there is nobody between
the trailer and the vehicle.
Couple and uncouple the trailer carefully .If
you do no tcouple the trailer to the towing
vehicle correctly, the trailer could become
detached.
Make sure that the following values are not
exceeded:
R the permissible trailer drawbar noseweight
R the permissible trailer load
R the permissible rear axle load of the towing
vehicle
R the maximum permissible gross vehicle
weight of both the towing vehicle and the
trailer
You will find the applicable permissible val-
ues, which must not be exceeded, in the vehi-
cle documents.
You will find the values approved by the man-
ufacturer on the vehicle identification plates
and those for the towing vehicle in the "Tech-
nical data" section. G
WARNING
If the Check trailer hitch locking mechanism message appears in the multi-
function display while the vehicle is in motion,
pull over immediately and check whether the
ball coupling is correctly engaged. G
WARNING
When towing a trailer, your vehicle's handling
characteristics will be different in comparison
to when driving without a trailer. Towing
atrailer
221Driving an d parking
Z

The following messages can appear in the
multifunction display:
Z Shift recommendation
(Ypage 164)
XjY Parking Guidance (Y page 203)
è Rear window wiper
(Ypage 133)
_ Adaptive Highbeam Assist
(Ypage 127)
À ATTENTION ASSIST
(Ypage 207)
¤ ECO start/stop function
(Ypage 158)
Ä Speed Limit Assist
(Ypage 208)
à Lane Keeping Assist
(Ypage 214) or Active Lane
Keeping Assist (Y page 218)
ë HOLD function (Y page 194)
Ä PRE-SAFE®
Brake (Y page 75)
120 km/h! Maximum permissible speed
exceeded (only for certain coun-
tries) Displays and operation
233On-board computer and displays Z

X
Press the 9or: button to select the
desired name.
To start scrolling rapidly, press and hold the
9 or: button for longer than one
second. After a short time, rapid scroll
speeds up.
Rapid scrolling stops when you release the
button or reach the end of the list.
X If only one telephone number is stored
for a name: press the6ora button
to start dialling.
or
X If there is more than one number for a
particular name: press the6ora
button to display the numbers.
X Press the 9or: button to select the
number you want to dial.
X Press the 6ora button to start dial-
ling.
or
X If you do not want to make a call: press
the ~ or% button.
Redialling The on-board computer saves the last names
or numbers dialled in the redial memory.
X
Press the =or; button on the steer-
ing wheel to select the Tel menu.
X Press the 6button to switch to the
redial memory.
X Press the 9or: button to select the
desired name or number.
X Press the 6ora button to start dial-
ling.
or
X If you do not want to make a call: press
the ~ or% button. Assistance menu
Introduction In the
Assist. menu you can:
R display Speed Limit Assist and activate/
deactivate the message function of Speed
Limit Assist
R show the distance display
R activate/deactivate ESP ®
R activate/deactivate PRE-SAFE ®
Brake
R activate/deactivate ATTENTION ASSIST
R activate/deactivate Blind Spot Assist or
Active Blind Spot Assist
R activate/deactivate Lane Keeping Assist or
Active Lane Keeping Assist
Speed Limit Assist Displaying Speed Limit Assist
In the
Speed Lim. Asst. function, a detec-
ted speed limit is displayed under certain
conditions (Y page 208).
X Press =or; on the steering wheel
to select the Assist. menu.
X Press 9or: to select Speed Lim.
Asst. .
X Press a.
The multifunction display shows Speed
Limit Assist.
Activating/deactivating the Speed Limit
Assist message function
You can set Speed Limit Assist (Y page 208)
to display a detected speed limit automati-
cally for five seconds. Other messages in the
multifunction display will be faded out for this
length of time. 240
Menus and submenusOn-board computer and displays

Ä
symbol as long as the HOLD function is
not activated (Y page 194).
Vehicles with Parking Guidance: if PARK-
TRONIC is activated and you are driving at a
speed under 35 km/h, the jParking Guid-
ance symbol is shown instead of the Ä
symbol.
Activating/deactivating ATTENTION
ASSIST X
Press =or; on the steering wheel
to select the Assist. menu.
X Press the 9or: button to select
Attention Asst. .
X Press a.
The current selection is displayed.
X To activate/deactivate: pressa
again.
When ATTENTION ASSIST (Y page 207) is
activated, the Àsymbol appears in the
multifunction display when the ignition is on.
Activating/deactivating Blind Spot
Assist You can use the
Blind Spot Asst. function
to activate or deactivate Blind Spot Assist
(Y page 212) or Active Blind Spot Assist
(Y page 216).
X Press =or; on the steering wheel
to select the Assist. menu.
X Press 9or: to select Blind Spot
Asst. .
X Press a.
If the function is activated, the monitored
areas in the multifunction display light up
red.
X To activate/deactivate: pressa
again.
Activating/deactivating Lane Keeping
Assist You can use the
Lane Keep. Asst. function
to activate/deactivate Lane Keeping Assist (Y
page 214) or Active Lane Keeping Assist
(Y page 218).
X Press =or; on the steering wheel
to select the Assist. menu.
X Press 9or: to select Lane Keep.
Asst. .
X Press a.
If the function is activated, the lane marking
symbol in the multifunction display lights
up red.
X To activate/deactivate: pressa
again.
When Lane Keeping Assist or Active Lane
Keeping Assist is activated, the Ãsymbol
appears in the multifunction display when the
ignition is on. Service menu
In the
Service menu, you have the following
options:
R calling up display messages (Y page 253)
R restarting the tyre pressure loss warning
system (Y page 367) or checking the tyre
pressure electronically (Y page 368)
R calling up a service due date
(Y page 325) 242
Menus and submenusOn-board computer and displays

Display messages Possible causes/consequences and
M Solutions
Radar sensor
deactivated autom.
See Owner's Manual Vehicles with a navigation system: the vehicle is close to a radio
telescope facility and is therefore prohibited from transmitting any
rada
rsignals .The radar sensor system has switched off automat-
ically (Y page 398).
DISTRONIC PLUS (Y page 185) is deactivated automatically if it is
activated. Awarning tone also sounds.
Blind Spo tAssist (Y page 212) or Active Blind Spot Assist
(Y page 216) is deactivated automatically if it is activated. The
yellow 9indicator lamps also light up in the exterior mirrors.
BAS PLUS (Brake Assist PLUS) (Y page 70) and PRE-SAFE®
Brake
(Y page 75) are also not available.
X Drive on.
Once you have moved far enough away from the radio telescope,
the above functions are available again. Radar sensor
deactivated See
Owner's Manual The radar sensor system is deactivated.
X
Check whether or not the radar sensor system may be activated
(Y page 398).
X Switch on the radar sensor system (Y page 247).Lane Keeping
Assist currently
unavailable See
Owner's Man‐
ual orActive Lane
Keeping Assist cur‐
rently unavailable
See Owner's Manual Lane Keeping Assist or Active Lane Keeping Assist is deactivated
and temporarily inoperative. Possible causes:
R
the windscreen is dirty in the camera's field of vision.
R visibility is impaired due to heavy rain, snow or fog.
R there are no lane markings for a longer period.
R the lane markings are worn, dark or covered, e.g. by dirt or snow.
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 Apply the parking brake.
X Cleant he windscreen.
If the system detects that the camera is fully operational, the dis-
play message disappears.
Lane Keeping Assist or Active Lane Keeping Assist is operational
again. Lane Keeping
Assist inopera‐
tive orActive Lane
Keeping Assist
inoperative Lane Keeping Assist or Active Lane Keeping Assist is faulty.
X
Visit a qualified specialist workshop. 268
Display messagesOn-board computer and displays