2008 AUDI A4 warning light

Doors and windows 56
– You can set the roof to an intermediate position by
turning the switch to the desired position.The sun roof can be operated for about ten minutes after the igni-
tion has been switched off. The switch is deactivated immediately
when one of the front doors is opened.
Sliding sun blind with glass sun roof*
The sliding sun blind can be opened and closed manually in any
position. The sun blind opens automatically when you slide open
the sun roof. When the sun roof is raised to the tilt position, the rear
end of the sun blind is raised together with the sun roof.
WARNING
Take care when closing the sun roof. Careless or uncontrolled use
of the sun roof can cause injuries. For this reason, always take out
the ignition key when leaving the vehicle.
Caution
You should always close the sun roof when leaving the car. Sudden
rain could seriously damage your car's interior equipment, espe-
cially the on-board electronic systems.
Note
•
Should you not be able to close the tilted sun roof, pull and hold
the switch until the sun roof is closed.
•
Details on the convenience open/close function ⇒page 54.
Closing the sun roof manually– Open the compartment for (sun)glasses. The screw
⇒fig. 52 will then be visible.
– Remove the screw and detach the light unit.
– Insert the crank all the way into the hexagonal socket
⇒fig. 53 and turn. The sun roof will now close.
NoteTo make it easier to turn the crank, you can make use of the screw-
driver handle (tool kit).
Fig. 52 Detail of head-
liner: Unscrewing the
light housingFig. 53 Detail of head-
liner: Crank for manual
operation
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Lights and vision 58
WARNING
The automatic headlights are only intended to assist the driver.
The driver must always ensure that the headlights are used when
required, and may have to switch the m o n m a n u a l l y when the light
conditions or visibility are poor. For example, the light sensors are
not able to detect fog. Therefore, you should always switch on the
headlights
 in these conditions and when driving after dark.
Note
•
The light sensor for automatic headlight control is located in the
mounting for the interior mirror. Do not affix any stickers on this
section of the windscreen to avoid malfunctioning of the sensor.
•
Some of the settings for the exterior lighting can be adjusted
⇒page 59.
•
If the lights are left on after the key has been taken out of the
ignition lock, a buzzer sounds when the driver's door is opened.
•
The use of the lighting described here is subject to the relevant
statutory requirements.
•
The coming home/leaving home function is active only when the
light switch is set to AUTO.
Fog lights
– Press button ⇒fig. 55 to switch on the front fog lights
.
– Press button to switch on the rear fog lights
.
Front fog lights
The side lights or headlights must be switched on. The green diode
at the edge of the switch lights up when the front fog lights are
switched on.
When the headlights are set to AUTO, the dipped headlights are
switched on automatically when you switch on the front fog lights.
Rear fog lights
The headlights or side lights and the front fog lights must be
switched on.
The yellow diode at the edge of the switch lights up when the rear
fog lights are switched on.
If you are towing a trailer or caravan equipped with a rear fog light
on a vehicle with a factory-fitted towing bracket, only the rear fog
light on the trailer or caravan will light up.
Caution
To avoid dazzling the traffic behind you, the rear fog light should
only be used in accordance with statutory regulations.
Fig. 55 Switch for
front fog lights
A1A2
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Lights and vision61
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data
Applies to vehicles: with xenon headlight bulbsDynamic headlight range controlHeadlights with xenon gas-discharge bulbs automatically adapt to
suit the load being carried when the engine is switched on. The
headlights are also automatically adjusted when the vehicle is in
motion (e.g. when accelerating and braking).Applies to vehicles: with adaptive lightadaptive light
This feature provides better illumination when you drive
through a corner.The adaptive light gives better illumination of the bend and the side
of the road when driving through a corner ⇒fig. 59. The adaptive
light is controlled automatically, depending on the speed of the
vehicle and the steering wheel angle.
The headlights are regulated automatically when you drive through
a corner, depending on how far you turn the steering wheel. To
avoid having a dark spot in front of the vehicle the two headlights
are directed at different angles.
Note
The system is active at speeds from approximately 10 km/h to
110 km/h.Hazard warning lights

The hazard warning lights are used to make other road
users aware of your vehicle in hazardous situations.– Press the switch
 to switch the hazard warning lights
on or off ⇒fig. 60.
All four turn signals flash simultaneously when the hazard warning
lights are switched on. The two turn signal indicator lamps
  and
the indicator lamp in the switch
 will flash at the same time. The
hazard warning lights also work when the ignition is switched off.
The hazard warning lights come on automatically in the event of an
accident in which an airbag is triggered or in the case of an emer-
gency stop (full brake application).
Note
You should switch on the hazard warning lights to warn other road
users, for instance:
Fig. 59 adaptive light
when driving
Fig. 60 Switch for
hazard warning lights
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Lights and vision 62•
When reaching the tail end of a traffic jam
•
If your vehicle breaks down or there is an emergency
•
If your vehicle is being towed away, or if you are towing another
vehicle.
Turn signal and main beam lever
The turn signal and main beam lever also operates the
parking lights and the headlight flasher.The turn signal and main beam headlight lever has the
following functions:
Turn signals
 
– Move the lever all the way up to indicate right, or all the
way down to indicate left ⇒fig. 61.
– Move the lever briefly up or down just as far as the point
of resistance and then release it: the turn signals will
flash three times.
– Move the lever up or down just as far as the point of
resistance and hold it there: the turn signals flash for as
long as you hold the lever.Main beam headlights

– Press the lever forward to switch on the main beams.
– Pull the lever back towards you to switch the main beam
headlights off again.
Headlight flasher

– Pull the lever towards the steering wheel to operate the
flasher.
Parking lights

– Switch off the ignition.
– Move the lever up or down to turn on the right or left-
hand parking lights respectively.Notes on these functions•
The turn signals only work when the ignition is switched on. The
corresponding indicator lamp
 or
 flashes in the instrument
cluster.
•
The turn signals are cancelled automatically when the steering
wheel is returned to the straight-ahead position.
•
The main beam headlights can only be switched on if the dipped
beam headlights are already on. The main beam headlight indicator
lamp  then comes on in the instrument cluster.
•
The headlight flasher comes on for as long as you pull the lever –
even if no other lights are switched on. The main beam headlight
indicator lamp
 then comes on in the instrument cluster.
•
When the parking lights are switched on, the headlight and the
rear light on one side of the car light up with reduced intensity. The
parking lights will only work with the ignition off. A warning buzzer
will sound for as long as the driver's door is open.
Fig. 61 Turn signal and
main beam headlight
lever
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Lights and vision 66
Automatic wash and wipe
– Pull the lever to position .
– Release the lever again. The washer will stop and the
wipers will keep running for approximately 4 seconds.
The number of wipe cycles varies according to the length
of time the lever is pulled.
Switching off the wipers
– Move the lever to the "off" position .General notes
The washers and wipers will only work when the ignition is switched
on.
If you stop briefly, e.g. at traffic lights, the wiper speed will automat-
ically be reduced by one level.
The windscreen washer jets are heated when the ignition is
switched on if the outside temperature is low.
Dribble wipe
About 5 seconds after the wash and wipe cycle has finished, the
windscreen wiper system automatically gives the screen one extra
wipe to remove any dribbles of water.
If you want to deactivate the dribble wipe function while driving,
pull the lever to position again within 10 seconds.
The dribble wipe function will be re-activated the next time the igni-
tion is switched off and on.
Rain sensor*
The rain sensor will only function in the intermittent wipe position.
The intermittent wipe function is activated automatically when it
starts to rain.
Before you reach a road speed of 6 km/h you will have to activate the
rain sensor manually by switching it off and back on again.To reduce the sensitivity level of the rain sensor move control
⇒page 65, fig. 67 to the left. To increase the sensitivity level of the
rain sensor move the control to the right.
If you have selected a high sensitivity level for the rain sensor the
windscreen wipers will react sooner to any moisture on the wind-
screen. The wiper intervals in the intermittent wipe setting are also
varied automatically according to the road speed (in addition to the
sensitivity setting).
WARNING
•
Poor visibility can cause accidents. Always ensure that the
wiper blades are in good condition ⇒page 68, “Changing wiper
blades”.
•
The rain sensor is only intended to assist the driver. The driver
is still obliged to manually operate the windscreen wipers as
required depending on visibility.
•
Do not use water-repellent coatings on the windscreen. In bad
visibility conditions such as light rain, low sun or when driving at
night these coatings can cause increased dazzle, which is a
serious safety hazard. Such coatings can also cause the wiper
blades to judder.Caution
•
In icy conditions, always check that the wiper blades are not
frozen to the glass before using the wiper for the first time. If you
switch on the wipers when the wiper blades are frozen to the glass,
this could damage both the wiper blades and the wiper motor.
•
Make sure you switch off the windscreen wiper system (lever in
position "0") before you use an automatic car wash. This will avoid
inadvertent triggering of the wipers and possible damage to the
wiper system.
A5
A0
A5
AA
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Lights and vision 68when they are in the service position you will also avoid damaging
the paintwork on the bonnet.•
off - the windscreen wipers will be moved back to their original
position.Caution
Never move the vehicle with the front wiper arms in a raised posi-
tion as they are automatically moved back to their normal park posi-
tion above a speed of 6 km/h. The paintwork on the bonnet may be
damaged as a result.
Note
•
You can also use the service position, for example, if you want to
fix a cover over the windscreen in the winter to keep it clear of ice.
•
The service position is automatically set to off when you operate
the windscreen wiper lever or the road speed exceeds 6 km/h.
Changing wiper blades
Good wiper blades are essential for clear vision.Taking off the wiper blade
– Set the wipers to the service position ⇒page 67.– Lift the wiper arm away from the glass.
– Press the release button on the wiper blade ⇒fig. 70.
Hold the wiper blade firmly and press it forwards slightly
.
– Slide the wiper blade upwards .
Fitting the wiper blade
– Fit the new wiper blade into the mounting on the wiper
arm . You should hear it engage in the wiper arm.
– Fold the wiper arm back down onto the glass.
WARNING
•
To prevent smearing on the glass, the wiper blades should be
cleaned regularly using a window cleaner solution. If the wiper
blades are very dirty (insects etc.), they should be cleaned using a
sponge or cloth – bad visibility can cause accidents.
•
For safety, the wiper blades should be changed once or twice a
year.Caution
The windscreen wipers must be in the service position ⇒page 67
when replacing the blades! Otherwise the wiper motor or the paint-
work on the bonnet may be damaged.Rear-view mirrorsManual anti-dazzle adjustmentNormal setting
– Push the lever at the bottom of the mirror away from you.
Fig. 70 Removing the
wiper blades
A1
A2
A3
A4
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Lights and vision69
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data
Anti-dazzle setting
– Pull the lever at the bottom of the mirror towards you.Applies to vehicles: with automatic anti-dazzle adjustment for interior mirrorAutomatic anti-dazzle adjustment
The automatic anti-dazzle function can be switched on
and off as desired.Switching off anti-dazzle function
– Press button ⇒fig. 71 - the indicator lamp will go
out.
Switching on anti-dazzle function
– Press button - the indicator lamp will light up.Anti-dazzle function
The anti-dazzle function is activated every time the ignition is
switched on. The green indicator lamp lights up in the mirror
housing.
When the anti-dazzle function is activated the interior mirror will
darken automatically according to the amount of light it receives
(for example from the headlights of a vehicle behind). The mirror
will not darken automatically:
•
when the interior lighting is switched on
•
when reverse gear is engaged
WARNING
Electrolyte fluid can leak from a broken mirror. This fluid can cause
irritation to the skin, eyes, and respiratory organs. Wash thor-
oughly with clean water should you come into contact with this
fluid. Seek medical assistance if needed.
Caution
Electrolyte fluid leaking from a broken mirror can cause damage to
plastic surfaces. Use a sponge or similar to remove the fluid as soon
as possible.
Note
•
If you switch off the anti-dazzle function for the interior mirror,
this will also deactivate the anti-dazzle function for the exterior
mirrors.
•
The automatic anti-dazzle function will only work properly if the
sun blind* for the rear window is not in use and there are no other
objects preventing light from reaching the interior mirror.
•
Do not attach any stickers to the windscreen in front of the
sensors, as these could lead to malfunctioning of the mirror.
Fig. 71 Anti-dazzle
interior mirror: On/off
button with indicator
lamp
AA
AB
AA
AB
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Lights and vision71
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data
Applies to vehicles: with automatic anti-dazzle adjustment for exterior mirrorsAutomatic anti-dazzle adjustment for exterior mirrorsThe exterior mirrors darken together with the automatically
adjusting interior mirror. When the ignition is on, the mirrors will
darken automatically according to the amount of light received (for
example from the headlights of a vehicle behind).
When the interior lights are switched on, or when reverse gear is
engaged, the mirrors revert to their original (i.e. not darkened)
condition.
WARNING
Electrolyte fluid can leak from a broken mirror. This fluid can cause
irritation to the skin, eyes, and respiratory organs. Wash thor-
oughly with clean water should you come into contact with this
fluid. Seek medical assistance if needed.
Caution
Electrolyte fluid leaking from a broken mirror can cause damage to
the paintwork or plastic surfaces. Use a sponge or similar to remove
the fluid as soon as possible.
Note
•
If you switch off the anti-dazzle function for the interior mirror,
this will also deactivate the anti-dazzle function for the exterior
mirrors.
•
The automatic anti-dazzle function will only work properly if the
sun blind* for the rear window is not in use and there are no other
objects preventing light from reaching the interior mirror.
Digital compassApplies to vehicles: with digital compassActivating and deactivating the compass
The compass direction will appear in the mirror.– To switch the compass on and off, press and hold
button until the compass display in the mirror
⇒fig. 73 appears or disappears.The digital compass only works when the ignition is on. The points
of the compass are displayed as follows: N (North), NE (North East),
E (East), SE (South East), S (South), SW (South West), W (West), NW
(North West).
Note
To avoid inaccurate compass readings, do not hold any remote
controls or other electrical devices or metal objects near the interior
mirror.
Fig. 73 Interior mirror:
activated digital
compass
AA
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