2008 AUDI A4 warning

Audi lane assist 146Indicator lamp in instrument cluster Active: The green indicator lamp confirms that the system is fully
functional. You will be warned if you are about to cross the lane
markings detected by the system. Inactive: The yellow warning lamp indicates that the system is
switched on. However, you will not be warned if you cross the lane
markings. This can have the following causes:•
There is only one or no lane marking.
•
The system cannot detect the lane markings (e.g. due to snow,
dirt, wet conditions or adverse light).
•
There are more than two lane markings in the lane you are
driving in (e.g. in roadwork sections).
•
The vehicle's speed is below 65 km/h, the speed at which the lane
assist system is activated.
•
The lane is narrower than 2.5 m or wider than 5 m.
•
The bend is too tight.Note
•
Make sure that the camera window ⇒page 145, fig. 159 is not
covered with stickers or similar objects.
•
Always keep the camera window clean. Usually it should suffice
to operate the windscreen wipers.
Applies to vehicles: with lane assist and on-board computerInstrument cluster displayYou can call up the display for the lane assist by repeatedly pressing
the button on the windscreen wiper lever. For more details
refer to ⇒page 27.
When the lane assist is switched on, two lines indicate the lane
demarcations on the left and right of your vehicle.
Version : Monochrome display•
Solid red lines: The lane assist is switched on and ready to warn.
•
One red line flashing (left or right): The lane assist warns you
before you cross the lane demarcation ⇒fig. 160, A
Fig. 160 Instrument
cluster: lane assist
switched on and in
warning modeFig. 161 Instrument
cluster: lane assist
switched on but not
ready for warning
RESET
AA
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Audi lane assist147
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data
•
Unfilled lines: The lane assist is switched on but not ready for
warning ⇒page 146, fig. 161,
Version : High-resolution display
•
Solid white lines: The lane assist is switched on and ready to
warn.
•
Solid red line (left or right): The lane assist warns you before you
cross the lane demarcation ⇒page 146, fig. 160.
•
Unfilled lines: The lane assist is switched on but not ready for
warning ⇒page 146, fig. 161.
Messages in the instrument cluster display
Should the lane assist be deactivated automatically, the indicator
lamp in the instrument cluster will go out and one of the following
messages will appear in the instrument cluster display:
Audi lane assist not available: currently no sensor vision
This message is displayed when the camera is no longer functional
after the system has continuously failed to detect the lane mark-
ings. This can have the following causes:
•
The outside of the camera window ⇒page 145, fig. 159 is dirty
or frosted. Please remove dirt or ice from this area of the wind-
screen.
•
The inside of the camera window is misted up. In this case,
please wait for the camera window to demist before switching on
the lane assist system again.
•
Due to the conditions (e.g. snow-covered road) the system has
not been able to detect the lane markings for a long period. Do not
switch the lane assist system on again before the lane markings are
discernible.
Audi lane assist currently not available
A temporary error is preventing the lane assist system from fully
functioning. Try switching on the lane assist system again later.
Audi lane assist: system faultThe system should be checked by an Audi dealership or other qual-
ified workshop.
Applies to vehicles: with lane assistSetting the warning time and steering vibration
You can change the lane assist settings on the sound
system or MMI* to suit your individual preferences.– Select: Function selector button > Audi lane assist.Setting time of warning
early: In this setting, the driver will be warned before a wheel
crosses a lane marking. The warning depends on the angle with
which the vehicle is approaching the lane marking. The larger the
angle with which you are driving towards the marking, the earlier
you will receive the warning, i.e. the distance between the vehicle
and the marking might still be still relatively long. If you are driving
toward the marking at a very narrow angle, you will receive the
warning later, i.e. shortly before one of the wheels touches the
marking.
adaptive: In this setting, the time of warning is adapted to the road
layout and the vehicle's speed. The warning will be received later
when you are driving through a bend, and earlier when you are
AA
AB
Fig. 162 Display:
Setting time of
warning and steering
vibration
CAR
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Audi lane assist 148driving on a straight section. On narrow roads, the system will give
off warnings later than on wide roads.
late: In this setting, the driver will be warned when a wheel crosses
a lane marking.
Setting steering wheel vibration
You can set the steering vibration to low, medium or strong. The
steering wheel will vibrate so that you can check your selection.
Note
•
The lane assist is not active while you are changing the setting;
the brief vibration of the steering wheel is only intended to help you
make the desired setting.
•
Your personal settings are stored automatically and assigned to
the remote control key which is being used.
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Audi side assist149
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data
Audi side assistLane change assist featureApplies to vehicles: with side assistDescription
The side assist function assists the driver when changing
lanes.The side assist function employs radar sensors ⇒fig. 163 to assist
the driver in monitoring following traffic and the blind spots on both
sides of the car ⇒page 151, fig. 166.Warning lamps are incorporated in the two exterior mirrors
⇒fig. 164. The warning lamp on the left-hand mirror assists the
driver when changing lane towards the left and the warning lamp
on the right-hand mirror assists the driver when changing lane
towards the right.
When one of these lamps lights up, this is to inform you that the
side assist has detected a vehicle on that side and calculates that a
lane change would be critical. This is the first stage of the warning,
referred to as the information mode ⇒page 151. This stage of the
warning is designed to be visible only when you look in the exterior
mirror.
If you operate the turn signal when the side assist has registered
what it judges to be a critical vehicle, the lamp on the exterior mirror
will then flash several times with greater intensity. This is the
warning mode ⇒page 151.
Applies to vehicles: with side assistSwitching on and off
Fig. 163 Rear bumper:
Position of radar
sensors (not externally
visible)Fig. 164 Warning lamp
on exterior mirror
(driver's side)
Fig. 165 Driver's door:
Button for side assist
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Audi side assist 150
Switching on
– Press the button ⇒page 149, fig. 165. The red indicator
lamp in the button will light up.
Switching off
– Press the button again. The indicator lamp in the button
will go out.The system is designed to provide assistance on motorways and
other out-of-town roads, so it only operates at speeds above about
60 km/h.
WARNING
•
Please note that the sensors are not always able to detect all
vehicles which may represent a potential hazard (accident risk).
•
Please note that the side assist is not able to give adequate
warning of vehicles approaching very fast from behind, or vehicles
that you are overtaking rapidly.
•
The radar sensor's "field of vision" can be impaired by rain,
snow or a lot of water on the road. This results in vehicles not
being reliably recognised or, in some circumstances, not being
detected at all by the side assist. Always give your full attention to
the position of your vehicle on the road and other nearby traffic.
•
The side assist only gives a warning of approaching vehicles
and vehicles in the blind spots when road speed is above 60 km/h.
•
Please note that the side assist does not operate in tight bends
(with a radius of less than 200 metres).
•
The side assist feature is not a substitute for the full concentra-
tion of the driver. The driver is always responsible for the safety of
lane changes and other manoeuvres. Always give your full atten-
tion to the position of your vehicle on the road and other nearby
traffic.
Caution
•
To avoid impairing the function of the side assist, do not attach
any objects (e.g. stickers or bicycle carriers) in such a way that they
might interfere with the radar sensors in the rear bumper.
•
Make sure that the warning lamps on the exterior mirrors are not
obscured by stickers or other objects.Note
•
To ensure that the side assist function works properly, do not
allow snow and ice to accumulate on the rear bumper near the radar
sensors. Please observe the additional notes on ⇒page 157.
•
The side assist function will be switched off automatically when
the electrical connector for the trailer socket is plugged in on vehi-
cles with a factory-fitted towing bracket.
•
The side assist should be switched off manually when towing a
trailer if the vehicle is equipped with a towing bracket which was not
factory-fitted.
•
The side assist system will switch off automatically if it detects
an obstruction that impairs the function of the radar sensors.
•
The warning lamps on the exterior mirrors may not be properly
visible if tinted foil is affixed to the side windows on the driver's or
passenger's side.
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Audi side assist151
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data
Applies to vehicles: with side assistArea covered by the radar sensorsThe area covered by the radar sensors ⇒fig. 166 consists of:•
The rearward approach zone (light green area: up to about 50
metres) and
•
Blind spots (dark green area) .
The radar sensors monitor the lanes immediately to the left and
right of your vehicle. Other lanes are not covered by the sensors.Note
The side assist system is programmed for lanes of a fixed width, and
is not able to measure differing lane widths. It monitors a zone
equivalent to one normal lane width on either side. If the lanes are
narrower than this, or if vehicles are not travelling in the centre of
the lanes, the system may register vehicles that are not in fact trav-
elling in an adjacent lane ⇒page 156.Applies to vehicles: with side assistHow the system worksWhen other vehicles are detected, the side assist system registers
their distance and how fast they are approaching. The warning lamp on the relevant exterior mirror will light up whenever the side assist
calculates that the distance and the speed differential of
approaching vehicles would be critical in the event of a lane change.
The warning lamp may light up when you are being overtaken and
when you are overtaking another vehicle.
If you are overtaking slowly, with a speed differential of less than
15 km/h, the warning lamp will light up as soon as the other vehicle
enters your blind spot and is detected by the sensors. If you are
overtaking with a speed differential which is greater than this the
lamp will not give a warning.
Applies to vehicles: with side assistInformation mode and warning modeThe side assist has two modes of operation•
The information mode and
•
The warning mode
The side assist will respond in the appropriate mode, depending on
whether or not you operate the turn signal to indicate an intended
lane change.
Information mode
As long as you do not operate the turn signal, the side assist will
merely inform you of the presence of vehicles that it has detected
and judges to be critical in the event of a lane change. The warning
lamp on the relevant exterior mirror will light up with low intensity
whenever the side assist calculates that the distance and the speed
differential of an approaching vehicle are critical.
The intensity of the warning lamp in this information mode is delib-
erately kept relatively low, so that it does not distract you while you
are looking at the road in front and do not intend to change to a
different lane. The information mode is clearly visible when you look
in the exterior mirror.
Fig. 166 Schematic
diagram: Area covered
by the radar sensors
A1
A2
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Audi side assist 152Warning mode
If you operate the turn signal when the side assist has detected a
vehicle on that side that it judges to be critical in the event of a lane
change, the warning lamp on the relevant exterior mirror will flash
brightly several times. This is the warning mode: if the lamp flashes
brightly it warns you that you should check the situation again in the
mirror and by looking back over your shoulder ⇒ in “Safety
notes” on page 157.
Note
You can adjust the brightness of the warning lamps on the exterior
mirrors via the MMI ⇒page 155.Applies to vehicles: with side assistSituation with vehicle approaching rapidly from behindFig. 167 side assist: Vehicles approaching rapidly from behind
Warning lamp on exterior mirror does not light up
The sensors have not detected any vehicles. The warning lamp on
the exterior mirror does not light up ⇒ in “Safety notes” on
page 157.
Warning lamp lights up in information mode
The sensors have detected a rapidly approaching vehicle - in this
example in the left-hand lane. Because of its approach speed, this
vehicle is already judged to be critical in the event of a lane change
even though it is still some distance away. The warning lamp on the
exterior mirror lights up in the information mode ⇒page 151.
Warning lamp flashes in warning mode
If you operate the turn signal in situation , the warning lamp on
the exterior mirror will flash briefly several times. This calls your
attention to the presence of a vehicle which you may have over-
looked.Note
•
The faster a vehicle approaches, the earlier the warning will
appear on the exterior mirror. In all cases, the side assist will give a
warning for the vehicles it has detected at the latest when they enter
the “blind spot”.
•
If a vehicle is approaching at high speed it is possible that a lane
change may be critical, even though no warning is given.
A1A2A3
A2
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Audi side assist153
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data
Applies to vehicles: with side assistSituation with vehicle approaching slowly from behindFig. 168 side assist: Vehicles approaching slowly from behind and vehicles in
the blind spot Warning lamp on exterior mirror does not light up
The sensors have detected a slowly approaching vehicle - in this
example in the left-hand lane. Because it is relatively far away and
only approaching slowly, no warning will appear on the exterior
mirror ⇒ in “Safety notes” on page 157.
Warning lamp lights up in information mode
The slowly approaching vehicle is now closer. The warning lamp on
the exterior mirror lights up in the information mode.
The warning lamp on the exterior mirror will only light up if the side
assist calculates that the distance and the speed differential of
approaching vehicles would be critical in the event of a lane change. In all cases, the side assist will light up to indicate the vehicles it has
detected at the latest when they enter the “blind spot”.
Warning lamp flashes in warning mode
If you operate the turn signal in situation , the warning lamp on
the exterior mirror will flash briefly several times. This calls your
attention to the presence of a vehicle which you may have over-
looked.
Note
•
The faster a vehicle approaches, the earlier the warning will
appear on the exterior mirror. The side assist will give a warning for
the approaching vehicles it has detected at the latest when they
enter the “blind spot”.
•
If a vehicle is approaching at high speed it is possible that a lane
change may be critical, even though no warning is given.
A1A2
A3
A2
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