MERCEDES-BENZ E-CLASS ESTATE 2009 Owners Manual
Page 171 of 373
For Blind Spot Assist to help you when driving,
the radar sensor system must be switched on
and operational. G
Risk of accident
Blind Spot Assist cannot detect road and traf-
fic conditions.
Blind Spot Assist may not detect narrow vehi-
cles, such as motorcycles or bicycles, or only
detect them too late.
Monitoring may be affected by dirty sensors,
strong spray or poor visibility caused by snow,
rain or mist, for example. In this case, vehicles
are detected late or not at all.
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.
Monitoring range of the sensors
Blind Spot Assist monitors the area up to
three metres behind your vehicle and directly
next to your vehicle as shown in the diagram. Example: Saloon
G
Risk of accident
Blind Spot Assist monitors certain areas in the
immediate vicinity of your vehicle. Vehicles
that approach and drive past at high speeds
are not detected. There is no display and no
warning. If the lanes are very wide, it may not be pos-
sible to monitor the complete width of the
neighbouring lane. For this reason, vehicles in
the next lane may not be detected, especially
if they are driving in a staggered formation in
different lanes. This may be the case if vehi-
cles are driving at the edge of their lane that
is furthest away from your vehicle.
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.
If the lanes are narrow, the system may be
unable to distinguish the neighbouring lane
from the one beyond it. For this reason, vehi-
cles in the farther lane may be indicated,
especially if the vehicles are driving in a stag-
gered formation in different lanes. This may
be the case if vehicles are driving at the edge
of the lane that is nearest your vehicle. Due
to the nature of the system, warnings may be
issued in error when driving close to crash
barriers or similar solid lane borders.
The two sensors for Blind Spot Assist are
integrated into the sides of the rear bumper.
Make sure that the bumper is free from dirt,
ice or slush around the sensors. For example,
the radar sensors must not be covered by
cycle 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, e.g. a Mercedes-Benz Service
Centre. Otherwise, Blind Spot Assist may not
work properly. 168
Driving systemsControls
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Page 172 of 373
Information and warning display
:
Yellow indicator lamp/red warning lamp
When you turn the key to position 2in the
ignition lock, warning lamps :in the exterior
mirrors light up red.
If Blind Spot Assist is switched on and the
engine is running, indicator lamps :in the
exterior mirrors light up yellow up to a speed
of 30 km/h. At speeds above 30 km/h, the
indicator lamp goes out and Blind Spot Assist
is operational.
If a vehicle is detected within the monitoring
range of Blind Spot Assist at speeds above
30 km/h, warning lamp :on the corre-
sponding side lights up red. This warning is
always issued 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 12 km/h.
The yellow indicator lamp goes out after
reverse gear is engaged. In this event, Blind
Spot Assist is no longer active.
The brightness of the indicator/warning
lamps is adjusted automatically according to
the ambient light. G
Risk of accident
Blind Spot Assist is not active at speeds below
30 km/h, and the indicator lamps in the exte-
rior mirrors are yellow. Vehicles in the moni-
toring range are then not indicated.
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.
Collision warning
If a vehicle is detected in the monitoring range
of Blind Spot Assist and you switch on the turn
signal, a double warning tone sounds. Red
warning lamp :flashes. If the turn signal
remains on, detected vehicles are indicated
by the flashing of red warning lamp :. There
are no further warning tones.
Switching on Blind Spot Assist
X Make sure that the radar sensor system
(Y page 134) and Blind Spot Assist
(Y page 130) are activated in the on-board
computer.
X Turn the key to position 2in the ignition
lock.
Red warning lamps :in the exterior mir-
rors are lit.
X Start the engine.
Warning lamps :in the exterior mirrors
now light up yellow.
Trailer towing*
Blind Spot Assist is deactivated when you
connect the trailer to your vehicle electrically.
The Blind Spot Assist currently
unavailable See Owner's Manual mes-
sage appears in the multi-function display.
Lane Keeping Assist If you select
kmon the on-board computer in
the Speed-/odometer: function
(Y page 131), Lane Keeping Assist is activa-
ted starting at a speed of 60 km/h. If the
miles display unit is selected, the assistance
range begins at between 35 and 40 mph.
Lane Keeping Assist is designed to detect
lane markings on the road and warn you
before you leave your lane unintentionally.
Usually the warning is given when 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. Driving systems
169Controls
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Page 173 of 373
Lane Keeping Assist monitors the area in
front of your vehicle by means of a camera at
the top of the windscreen. :
Lane Keeping Assist camera
In order that you are warned only when nec-
essary and in good time if you cross the lane
marking, the system recognises certain con-
ditions and warns you accordingly.
The warning occurs earlier if:
R you cut a corner on the outside.
R the road has very wide lanes, e.g. a motor-
way.
R the system recognises solid lane markings,
as crossing these often results in a critical
situation, e.g. in the case of hard shoulders
or crash barriers.
The warning occurs later if:
R the road has narrow lanes.
R you cut a corner on the inside.
No warning occurs if:
R you actively steer, brake or depress the
accelerator pedal, e.g. when changing lane,
overtaking, accelerating or leaving the
motorway.
R you cut the corner on a sharp bend.
R you drive around a very sharp bend.
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 ®
. G
Risk of accident
Lane Keeping Assist does not keep your vehi-
cle in its lane. It is only an aid and may detect
the lane markings on the road incorrectly or
not at all.
The system may be impaired or may not func-
tion if:
R there is poor visibility, e.g. due to snow,
rain, fog or spray.
R there is glare, e.g. from the sun or from
oncoming traffic.
R the windscreen is dirty, misted up or cov-
ered, for instance by a sticker, in the vicinity
of the camera.
R there are no lane markings.
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
short.
R there are ambiguous lane markings on the
road, e.g. near roadworks.
R there are short-term changes to the mark-
ings, e.g. filter lanes or motorway exits.
R the road is narrow and winding.
Lane Keeping Assist cannot detect road and
traffic conditions. It is not a substitute for
attentive driving.
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.
Activating Lane Keeping Assist Example: vehicles with automatic transmission
with a selector lever* 170
Driving systemsControls
* optional
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Page 174 of 373
X
Activate Lane Keeping Assist using the on-
board computer (Y page 130).
Symbol :appears. Air conditioning
Overview of air-conditioning systems
The vehicle is equipped with one of the following air-conditioning systems: Thermatic 2-zone automatic climate control
Front control unit Thermatic 2-zone automatic climate control
combines an automatic heating and ventila-
tion system with a cooling system. You can
control the temperature separately for the
driver's and front-passenger sides. Thermotronic 3-zone luxury automatic climate control*
Front control unit
Rear control panel Thermotronic 3-zone luxury automatic cli-
mate control combines an automatic heating
and ventilation system with a cooling sys-
tem. You can control the temperature sepa-
rately for the driver's and front-passenger
sides and the rear compartment. You can
control the airflow separately for the front
and rear compartments. General notes
Thermatic 2-zone automatic climate control/
Thermotronic luxury 3-zone automatic cli-
mate control* controls the temperature and the humidity of the vehicle interior and filters
out undesirable substances from the air.
Thermatic 2-zone automatic climate control/
Thermotronic luxury 3-zone automatic cli-
mate control* is only operational when the
engine is running. 35
Optimum operation is
35 Thermotronic luxury 3-zone automatic climate control*: the "residual heat" function can only be switched
on/off if the ignition is switched off. Air conditioning
171Controls
* optional
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Page 175 of 373
only achieved when you drive with the side
windows and sliding/tilting sunroof*/pano-
rama sliding sunroof* closed.
i Ventilate the vehicle for a brief period
during warm weather, e.g. using the con-
venience opening feature (Y page 102).
This will speed up the cooling process and
the desired vehicle interior temperature
will be reached more quickly.
i The integrated filter can filter out most
particles of dust and completely filters out
pollen. A clogged filter reduces the amount of air supplied to the vehicle interior. For
this reason, you should always observe the
interval for replacing the filter, which is
specified in the Service Booklet. As it
depends on environmental conditions, e.g.
heavy air pollution, the interval may be
shorter than stated in the Service Booklet. G
Risk of accident
Observe the recommended settings on the
following pages. Otherwise, the windows
could mist up. This may prevent you from
observing the traffic conditions, thereby caus-
ing an accident. Overview of air-conditioning system functions
Thermatic 2-zone automatic climate control Function
:
Activates/deactivates air-recircu-
lation mode
;
Demists the windscreen
=
Switches the zone function on/off
?
Display
A
Sets the air-conditioning system to
automatic
B
Switches cooling with air dehumid-
ification on/off
C
Switches the rear window heating
on/off Function
D
Switches the air conditioning on/
off
E
Sets the temperature, right
F
Sets the air distribution
G
Sets the airflow
H
Sets the temperature, left
i
Instructions and recommendations for
optimum air conditioning:
R activate the air conditioning using
the à and¿ buttons. The indica- 172
Air conditioningControls
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Page 176 of 373
tor lamps above the
Ãand¿ but-
tons come on.
R set the temperature to 22 †.
R only use the "demisting" function briefly,
until the windscreen is clear again.
R only use the "air-recirculation" mode
briefly, e.g. if there are unpleasant out-
side odours or when in a tunnel. Other- wise, the windows could mist up due to
a lack of fresh air.
R use the "ZONE" function to adopt the
temperature settings on the driver's side
for the front-passenger side as well. The
indicator lamp above the ábutton
goes out.
Thermotronic luxury 3-zone automatic climate control* Function
Front control unit
:
Sets the air-conditioning system to
automatic
;
Demists the windscreen
=
Switches the zone function on/off
?
Display
A
Activates/deactivates air-recircu-
lation mode Function
B
Switches the residual heat function
on/off
C
Switches cooling with air dehumid-
ification on/off
D
Switches the rear window heating
on/off
E
Switches the air conditioning on/
off
F
Sets the temperature, right Air conditioning
173Controls
* optional
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Page 177 of 373
Function
G
Controls the air conditioning auto-
matically (FOCUS/MEDIUM/DIF-
FUSE) 36 H
Setting the airflow
I
Setting the air distribution
J
Sets the temperature, left
Rear control panel
K
Increases the temperature
L
Display
M
Increases the airflow
N
Reduces the airflow
O
Reduces the temperature
i
Instructions and recommendations for
optimum air conditioning:
R activate the air conditioning using
the à and¿ buttons. The indica-
tor lamps above the Ãand¿ but-
tons come on. You can also set the air-
flow and air distribution of the automatic
air conditioning to one of three levels
(FOCUS/MEDIUM/DIFFUSE). You can
set the desired level using button G. The
MEDIUM level is recommended.
R set the temperature to 22 †.
R only use the "demisting" function briefly,
until the windscreen is clear again.
R only use the "air-recirculation" mode
briefly, e.g. if there are unpleasant out-
side odours or when in a tunnel. Other-
wise, the windows could mist up due to
a lack of fresh air.
R use the "ZONE" function to adopt the
temperature settings on the driver's side for the front-passenger side and the rear
compartment as well. The indicator lamp
above the ábutton goes out.
R use the "residual heat" function if you
want to heat or ventilate the vehicle inte-
rior when the ignition is switched off. The
"residual heat" function can only be acti-
vated or deactivated with the ignition
switched off. Switching the air conditioning on/off
i When the air conditioning is switched off,
the air supply and air circulation are also
switched off. Only select this setting briefly,
otherwise the windows may mist up.
i Activate the air conditioning primarily
using the Ãbutton (Y page 175).
X Turn the key to position 2in the ignition
lock.
X To activate: press theÃbutton.
The indicator lamp above the Ãbutton
lights up. Airflow and air distribution are set
to automatic mode.
or
X Press the ^button.
The indicator lamp above the ^button
goes out. The previously selected settings
come into effect again.
X To switch off: press the^button.
The indicator lamp above the ^button
lights up. Switching cooling with air dehumidi-
fication on/off
The "cooling with air dehumidification" func-
tion is only available when the engine is run-
ning. The air inside the vehicle is cooled and
36 Press the Ãbutton. The air conditioning is set to automatic mode. You can also set the airflow and air
distribution of the automatic air conditioning to one of three levels (FOCUS/MEDIUM/DIFFUSE) using button
G. 174
Air conditioningControls
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Page 178 of 373
dehumidified according to the temperature
selected.
G
Risk of accident
If you switch off the "Cooling with air dehu-
midification" function, the air inside the vehi-
cle will not be cooled (in warm weather) or
dehumidified. The windows could mist up
more quickly. This may prevent you from
observing the traffic conditions and thereby
cause an accident.
Condensation may drip from the underside of
the vehicle when Thermatic is in cooling
mode.
X To activate: press the¿button.
The indicator lamp above the ¿button
comes on.
X To switch off: press the¿button.
The indicator lamp above the ¿button
goes out. The cooling with air dehumidifi-
cation function has a delayed switch-off
feature. Controlling the air conditioning auto-
matically
In automatic mode, the set temperature is
maintained automatically at a constant level.
The system automatically regulates the tem-
perature of the dispensed air, the airflow and
the air distribution.
The automatic air conditioning will achieve
optimal operation if "cooling with air dehu-
midification" is also activated. If necessary,
cooling with air dehumidification can be deac-
tivated.
X Turn the key to position 2in the ignition
lock.
X Set the desired temperature. X
To switch on: press theÃbutton.
The indicator lamp above the Ãbutton
lights up. Automatic air distribution and air-
flow are activated.
X Thermotronic 3-zone luxury automatic cli-
mate control*: press button Gup or down
and select the desired level (Y page 173).
FOCUS Air flow high/air distribution via the centre and side vents
MEDIUM Air flow medium/air distribution via the centre and side vents
DIFFUS EAir flow low/air distribution via the
centre, side and defroster vents
i This setting is especially effective in auto-
matic mode when outside temperatures
are high.
X To deactivate: press the air distribution
button.
Thermatic 2-zone automatic climate con-
trol: press button F(Ypage 172).
Thermotronic 3-zone luxury automatic cli-
mate control*: press button I
(Y page 173).
The indicator lamp above the Ãbutton
goes out.
or
X Press the airflow button.
Thermatic 2-zone automatic climate con-
trol: press button G(Ypage 172).
Thermotronic 3-zone luxury automatic cli-
mate control*: press button H
(Y page 173).
The indicator lamp above the Ãbutton
goes out. Setting the temperature
Thermatic 2-zone automatic climate
control Different temperatures can be set for the
driver's and front-passenger sides. Air conditioning
175Controls
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Page 179 of 373
X
Turn the key to position 2in the ignition
lock.
X To increase/reduce: press buttonEor
H up or down (Y page 172). Only change
the temperature setting in small incre-
ments. Start at 22 †.
Thermotronic 3-zone luxury automatic
climate control* Climate zones of Thermotronic 3-zone luxury auto-
matic climate control*
You can select different temperature settings
for the driver's and front-passenger sides as
well as for the rear compartment.
X Turn the key to position 2in the ignition
lock.
X To increase/reduce temperature in the
front compartment: press buttonFor
J up or down (Y page 173). Only change
the temperature setting in small incre-
ments. Start at 22 †.
X To increase/reduce temperature in the
rear compartment: press theábutton
(Y page 173).
The indicator lamp above the ábutton
goes out.
X Press button ForJ up or down
(Y page 173). Only change the temperature
setting in small increments. Start at 22 †.
X To increase/reduce temperature in the
rear compartment: press buttonKor
O (Ypage 173). Only change the temper-
ature setting in small increments. Start at
22 †. Adjusting the air vents
G
Risk of injury
Very hot or very cold air can flow from the air
vents. This could cause burns or frostbite to
bare skin in the immediate vicinity of the air
vents. Keep bare skin away from these air
vents. If necessary, direct the airflow to a dif-
ferent area of the vehicle interior.
In order to ensure the direct flow of fresh air
through the air vents into the vehicle interior,
please observe the following notes:
R keep the air inlet between the windscreen
and the bonnet free of blockages, such as
ice, snow or leaves.
R never cover the vents or air inlet and outlet
grilles in the vehicle interior.
i For virtually draught-free ventilation,
adjust the sliders of the air vents to the
centre position.
Setting the centre air vents :
Centre air vent, left
; Centre air vent, right
= Control for right-hand centre air vent
? Control for left-hand centre air vent
X To open/close: turn controls=and ?
up or down. 176
Air conditioningControls
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Page 180 of 373
Setting the side air vents
X
To open/close: turn control=up or
down.
i Demister vent :is never completely
shut, even if side air vent ;is shut.
Setting the glove compartment air vent The glove compartment can be ventilated
when Thermatic 2-zone automatic climate
control/Thermotronic 3-zone luxury auto-
matic climate control* is activated, for
instance to cool its contents. The level of air-
flow depends on the airflow and air distribu-
tion settings.
!
At high outside temperatures, open the
air vent and activate the "cooling with air
dehumidification" function. Otherwise,
temperature-sensitive items stored in the
glove compartment could be damaged. :
Air vent control
; Air vent X
To open/close: turn control:clockwise
or anti-clockwise.
Setting the rear-compartment air vents :
Rear-compartment air vent control
; Rear-compartment air vent, right
= Rear control unit for Thermotronic 3-zone
luxury automatic climate control*
? Rear-compartment air vent, left
X To open/close: turn control:up or
down.
Setting the rear-compartment side air
vents* :
Rear-compartment side air vent
; Control for rear-compartment side air
vent
X To open/close: turn control;to the right
or to the left. Air conditioning
177Controls
* optional
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