2008 AUDI A4 technical data

Doors and windows49
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data
Locking
– Move the selector lever to position P (automatic
gearbox).
–Turn the key once to position ⇒ to lock the vehicle.
– If you turn the key to position a second time within
2seconds, this will lock the vehicle without activating
the deadlock mechanism.In order to switch off the anti-theft alarm*, you must switch on the
ignition within 15 seconds after opening the driver's door. Other-
wise the alarm will be triggered.
If the central locking system should fail to work at any time, the
passenger's door can be locked manually ⇒page 51.
WARNING
Do not leave anyone (especially children) in the car if it is locked
from the outside and the deadlock mechanism is activated: the
doors and windows cannot then be opened from the inside.
Locked doors could delay assistance in an emergency, potentially
putting lives at risk.
Note
•
The central locking switch and the release button for the boot lid

will function after the ignition is switched on.
•
If the vehicle is locked with the key when the central locking
system is operational, it is only possible to unlock all the doors and
the boot lid centrally with the key within the next 45 seconds. After
this period, the key will only unlock the driver's door.
Central locking switch– Press the
 button to unlock the vehicle ⇒fig. 41.
– Press the  button to lock the vehicle ⇒.
Please note the following when you use the central locking switch
to lock your vehicle:•
The doors and the boot lid cannot be opened from the outside
(for safety reasons, when stopped at traffic lights, etc.).
•
The LED in the central locking switch lights up when both of the
doors and the boot lid are closed and locked.
•
You can open the doors individually from the inside by pulling
the inside door handle.
•
In the event of an accident in which the airbags inflate, doors
locked from the inside will be automatically unlocked to facilitate
access and assistance.
WARNING
•
The central locking switch is still operative when the ignition is
switched off and will automatically lock the entire vehicle when
pressed.
•
The central locking switch inside the vehicle is not operative if
you lock the vehicle from the outside.
ABAB
Fig. 41 Driver's door:
Central locking switch
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Doors and windows51
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data
Deactivating interior monitor
– Press switch ⇒page 50, fig. 43. The diode in the
switch will light up.
Deactivating tow-away protection
– Press switch . The diode in the switch will light up.The interior monitor and tow-away protection will be switched on
again automatically the next time the vehicle is locked.
WARNING
Do not leave anyone (especially children) in the car if it is locked
from the outside and the deadlock mechanism is activated: the
doors and windows cannot then be opened from the inside.
Locked doors could delay assistance in an emergency, potentially
putting lives at risk.Locking the doors manually if the central locking fails to work
If the central locking system should fail to work at any
time, each door will have to be locked separately.
A mechanical locking device (only visible when the doors
are open) is provided on the front passenger's door and the
rear doors.
– Take the emergency key out of the remote control key
⇒page 45.
– Pull the cap out of the opening ⇒fig. 44.
– Insert the key in the slot inside and turn it as far as the
stop to the right (if the door is on the right side) or to the
left (if the door is on the left side).Once the door has been closed it can no longer be opened from the
outside. The door can be opened from the inside by pulling the door
handle. If the child-proof catch is engaged on one of the rear doors,
the door can be opened by pulling the inside door handle once and
then opening the door from the outside.Boot lidOpening and closing the boot lid
AAAB
Fig. 44 Door: Locking
the door manually
Fig. 45 Driver's door:
Unlocking the boot lid
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Doors and windows53
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data
Child-proof catchesChild-proof catches on the rear doors
The child-proof catches prevent the rear doors being
opened from the inside.The rear doors are equipped with child-proof catches. The
child-proof catches are only visible with the doors open.
Take the emergency key out of the remote control key
⇒page 45.
Engaging the child-proof catch
– Turn the key in the direction of the arrow ⇒fig. 48.
Disengaging the child-proof catch
– Turn the key in the opposite direction of the arrow.When the child-proof catch is engaged, the inside door handle will
not function, and the door can only be opened from the outside.
Electric windowsControls
The driver can operate all the electric windows.All electric windows have two-stage switches:
Opening the windows
– Press the switch as far as the first stop and hold it until
the window has moved to the desired position.
– Press the switch briefly to the second stop: the window
will automatically open all the way.
Closing the windows
– Pull the switch as far as the first stop and hold it until the
window has moved to the desired position.
–Pull the switch briefly to the second stop: the window will
automatically close all the way.Switches for electric windows
Driver's door
Front passenger's door
Fig. 48 Child-proof
catches on the rear
doors
Fig. 49 Detail of the
driver's door: Controls
AAAB
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Doors and windows55
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data
Settings for convenience open function
The driver can use the sound system or MMI* to select
which windows are opened.– Select: Function selector button > Windows >
Convenience open.If you wish to use the convenience open function for the windows
and the sun roof*, select on for the functions Front doors, Rear
doors and Sun roof*.What to do after a malfunction
The one-touch open and close function must be reacti-
vated if the battery has been disconnected.– Pull and hold the electric window switch until the
window is fully closed.
– Release the switch and then pull it again for at least one
second.
Sun roofControlsTilting open
– You can tilt the sun roof open or closed only when the
switch is in the position ⇒fig. 51.
– Press the switch briefly to tilt open the sun roof.
– Pull the switch briefly to close the sun roof again ⇒.
– To set an intermediate position, press or pull the switch
until the sun roof has reached the desired position.
Sliding open
– To slide the sun roof open to the position for low wind
noise, turn the switch to position (until you feel a
resistance).
– To slide the sun roof fully open, turn the switch past the
point of resistance to position and hold the switch.
– To close the sun roof, turn the switch to position
⇒.
Fig. 50 Display:
Convenience open
menu
CAR
Fig. 51 Detail of head-
liner: Rotary control for
sun roof
A0
A1
A2
A0
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Lights and vision57
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data
Lights and visionLightsSwitching lights on and off

Switching on automatic headlights* (AUTO)
– Turn the light switch to AUTO ⇒fig. 54.
Switching on the side lights
– Turn the light switch to position

.
Switching on dipped headlights
– Turn the light switch to position

.
Switching off the lights
– Turn the light switch to position O.
The dipped beam headlights will only work with the ignition on.
The symbol
 next to the light switch will light up when the side
lights or headlights are on.Automatic headlight control (AUTO)*
When the switch is set to AUTO, the headlights switch on automati-
cally according to the ambient light conditions, for instance in a
tunnel, at sunset, or in the rain or snow. The
 symbol lights up
when the dipped headlights are on. The headlights are switched on,
regardless of the light conditions, when you switch on the fog
lights.
The headlights are switched off automatically when you switch off
the ignition.
On vehicles with a rain sensor, the headlights switch on automati-
cally after several windscreen wiper cycles. The instrument lighting
does not switch on, however.
While using the automatic headlights you can activate the main
beam headlights as normal if this function has been activated in the
MMI. However, if you switch on the main beam headlights while
using the AUTO function and then do not switch back to the dipped
headlights setting, only the dipped headlights will come on the next
time you switch on the AUTO function. To be able to use the main
beam headlights again you must first pull the main beam lever back
to the "off" position and then push it forward to "on".
Malfunction of light sensor
If a malfunction should occur in the light sensor, the instrument
cluster will show the message:
 Automatic headlights / automatic wipers defective
For safety reasons, the dipped beam headlights will then be
switched on permanently when the light switch is set to the AUTO
position. However, you can still switch the lights on and off in the
normal way with the light switch. You should have the light sensor
checked by a qualified workshop as soon as possible.
Fig. 54 Dashboard:
Light switch
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Lights and vision59
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data
Exterior lighting settings
You can change the settings for these functions on the
sound system or MMI*.Important: .
– Select: Function selector button > Exterior lighting.coming home
The coming home function lights up the area round the vehicle after
dark when the ignition has been switched off and the driver's door
opened. This function can be set to operate for a time interval
between 0 (off) and 60 seconds. The coming home function is oper-
ational when the light switch is set to AUTO.
leaving home
The leaving home function lights up the area round the vehicle after
dark when the vehicle is unlocked. The function can be switched on
or off as required. The leaving home function is operational when
the light switch is set to AUTO.
Automatic headlights*
The sensitivity of the light sensor (i.e. how soon the lights are
switched on) can be adjusted.Daytime running lights*
The daytime running lights are switched on and off together with
the ignition.
On vehicles for some markets the daytime running lights cannot be
switched off if the vehicle has halogen headlights.
Headlamp converter* for driving abroad
The asymmetric low beams of the headlights are designed to light
up the near side of the road more intensely. If you drive a right-hand
drive vehicle in a left-hand drive country, or vice versa, you will
dazzle oncoming traffic.
Vehicles with xenon headlights*: The headlamp converter should be
switched on to avoid dazzling oncoming traffic.
Vehicles with halogen headlights: Opaque stickers should be
applied to certain parts of the headlight lenses. For further informa-
tion, please consult an Audi dealer or other qualified workshop.
Instrument lighting
The background lighting of the instruments, the centre
console and the display can be adjusted as required.– Briefly press the knob to release it.
Fig. 56 Display: Exte-
rior lighting
CAR
Fig. 57 Instrument
lighting
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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 vision63
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data
Caution
Do not use the main beam headlights or the headlight flasher if this
would dazzle oncoming traffic.Interior lightsFront interior lights
The front interior lighting also incorporates the reading
lights for the driver and passenger.The rocker switch ⇒fig. 62 for the interior light has the
following functions:
Courtesy light position
– Move switch to the centre position.
Interior light switched on
– Move switch to position I.
Interior light switched off
– Move switch to position O.Front reading lights

– Press one of the switches ⇒fig. 62 to switch the left
or right reading light on and off.If you switch on the courtesy lighting, the interior lights come on
automatically when the vehicle is unlocked or the doors are opened.
The light also comes on when the key is pulled out of the ignition. It
goes out approximately 30 seconds after the doors are closed. The
interior light is switched off immediately when the vehicle is locked
or when the ignition is switched on.
If a door is left open, the light is switched off after about 10 minutes
to prevent the battery from running flat.
The brightness of the light is automatically adjusted by a dimmer
when it is switched on.Rear interior lights
Reading lights are also provided for rear passengers.The reading lights are switched on and off with the switches
.
Fig. 62 Headliner:
Front interior
lighting/reading lights
AA
AAAAAA
AB
Fig. 63 Headliner: Rear
reading lights
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