2008 AUDI A5 warning lights

Driver information system 36Brake pads worn

 Brake pads!
If the  symbol lights up, have the front brake pads (and, for
safety's sake the rear pads as well) inspected by a qualified
workshop.
Applies to vehicles: with bulb monitorBulb monitor

The bulb monitor checks whether the lights on the vehicle
are working.The bulb monitor checks whether the lights on the vehicle are
working. If it detects a defective bulb on the vehicle it will show a
yellow warning symbol together with a message indicating which
light is not working.
Bulb failure

If the symbol
 lights up, this means that one of the turn signals
(front or rear), headlights, brake lights, rear lights, fog lights or the
rear fog light is not working.
WARNING
•
Bulbs are sensitive to pressure. The glass can break when you
touch the bulb, causing injury.
•
Incorrect handling of the high-voltage element of xenon gas-
discharge bulbs* can have potentially fatal consequences.Note
Have the components repaired or replaced by a qualified
workshop.
Applies to vehicles: with washer fluid warning systemWasher fluid level low

 Please top up washer fluid
If the  symbol lights up, top up the fluid for the windscreen
washer and headlight washer system* ⇒page 242.
Fuel level low

 Please refuel
When this symbol
 comes on for the first time, there are about
8 litres of fuel left in the tank. You should fill up as soon as possible
⇒page 228.
If this warning symbol lights up although the fuel tank is sufficiently
filled, there is a malfunction in the fuel tank system. The display will
also show the driver message Tank system malfunction ! Contact
workshop. Please contact a qualified workshop.
Applies to vehicles: with battery power warning systemBattery power

If battery power drops to a level at which you may encounter prob-
lems when starting the engine, the display will show the symbol

and the driver message Low battery charge: Battery will be charged
while driving.
Please bear in mind that the starting ability of the engine may be
impaired while this message is shown.
Message comes on and goes out again
If the message appears in the display after the ignition is switched
on or while driving, and goes out again after a period of time, the
battery has been charged up again sufficiently while the vehicle was
being driven.
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Driver information system37
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data Message comes on and does not go out
If the message appears in the display after the ignition is switched
on or while driving, and does not go out again, the battery is not
being maintained at the proper power level. Starting reliability may
be impaired. You should have the battery checked by a qualified
workshop as soon as possible.
Check engine oil level

 Please check oil level
If the  symbol lights up, check the engine oil level as soon as
possible ⇒page 234. Top up the oil at the next opportunity
⇒page 234.
Engine oil sensor defective


Oil level ! Sensor defective
If the 
symbol lights up, take the vehicle to a qualified workshop
and have the oil level sensor checked. Until then it is advisable to
check the oil level every time you fill up with fuel ⇒page 234.
Applies to vehicles: with diesel engine and diesel particulate filterDiesel particulate filter obstructed

 Particle filter. See Owner's Manual
When the symbol
 lights up you can assist the self-cleaning func-
tion of the filter by driving accordingly. You should drive at a speed
of at least 60 km/h (engine speed about 2,000 rpm) for about
15 minutes in 4th or 5th gear, or with the selector lever in position S
on vehicles with automatic gearbox*. As a result of the increase in
temperature the soot in the filter will be burned off. The symbol will
disappear once the cleaning process has been completed success-
fully.If the symbol
 does not go out, please contact a qualified work-
shop and have the fault rectified.
For further information on the diesel particulate filter ⇒page 205.
WARNING
It is essential that you adjust your speed to suit the weather, road,
terrain and traffic conditions. The recommended driving speed
must never lead to the driver disregarding the traffic regulations.Applies to vehicles: with dynamic headlight range controlHeadlight range control defective

 Headlight range control defective
This symbol
 indicates a malfunction in the dynamic headlight
range control. Take the vehicle to a qualified workshop to have the
dynamic headlight range control function repaired.
Applies to vehicles: with adaptive lightadaptive light defective

 adaptive light defective
This symbol
 indicates that the adaptive light is defective. Take
the vehicle to a qualified workshop to have the headlights and/or
the control unit for the adaptive light repaired.
Ignition lock defective


Ignition lock defective
If the symbol

lights up in the display, there is a malfunction in
the electronic ignition lock. Take the vehicle to a qualified workshop
to have the problem remedied.
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Doors and windows 40
WARNING
•
Always switch off the ignition and take the key with you when
leaving the vehicle - even if you only intend to be gone for a short
time. This is especially important if children are left in the car. They
might otherwise be able to start the engine or use power-operated
equipment such as the electric windows - this could lead to inju-
ries.
•
Wait for the vehicle to come to a standstill before removing the
ignition key from the lock. Otherwise the steering lock could
engage suddenly, causing an accident.Note
The function of the remote control key may be impaired by interfer-
ence from other nearby radio signals (for example from a mobile
telephone or TV transmitter) if these are in the same frequency
range.Indicator lamp on remote control key
The indicator lamp on the remote control key lights up
when you press the buttons.
The indicator lamp should light up once briefly when you press one
of the buttons briefly. The indicator lamp should flash when you
press and hold one of the buttons (convenience open/close).
If the indicator lamp does not light up, this means the battery is
exhausted and must be replaced ⇒page 40. The instrument cluster
display also shows the symbol
 and the following message if the
battery is exhausted:
Please change key battery
Replacing the battery for the remote control key– Press the release button ⇒fig. 29.
Fig. 28 Indicator lamp
on remote control key
Fig. 29 Remote control
key: Removing the
emergency keyFig. 30 Remote control
key: Removing the
battery carrier
AA
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Doors and windows43
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data Lock function can be switched on and off on the sound system or
MMI* ⇒page 44.
In the event of an accident in which the airbags inflate, the doors
will be automatically unlocked to facilitate access and assistance.
Deadlock mechanism
The central locking system is combined with a deadlock mecha-
nism. Once the vehicle has been locked from the outside, the door
handles on the inside are deactivated. This makes it more difficult
to break into the vehicle.
Anti-theft alarm system*
If the anti-theft alarm system senses interference with the vehicle it
triggers an audible and visible alarm.
The anti-theft alarm system switches on automatically when the
vehicle is locked. It switches off automatically if you unlock the
vehicle using the remote control.
If you unlock the vehicle by inserting the key in the drivers door, the
ignition must be switched on within 15 seconds, otherwise the
alarm will be triggered. On some export versions, the alarm is trig-
gered immediately when you open a door.
To deactivate the alarm, press the unlock button on the remote
control key or switch on the ignition. The alarm will also switch itself
off when it comes to the end of its cycle.
Switch off the interior monitor and tow-away protection if you wish
to prevent the alarm from being triggered accidentally.
Turn signals
The turn signals will flash twice when the vehicle is unlocked and
once when the vehicle is locked. If the turn signals do not flash, one
of the doors, the bonnet or the boot lid is still open.
Accidental lock-out
The central locking system prevents you from being locked out of
the vehicle in the following situations:
•
When the driver's door is open, it cannot be locked together with
the other door by pressing the central locking switch and then
closing the door ⇒page 47.
•
On vehicles with advanced key*, the boot lid will be released
again automatically if the remote control key that was last in use is
left inside the boot when the boot lid is closed ⇒page 48.
To prevent yourself from being locked out, do not lock the vehicle
with the remote control key before closing the doors or boot lid.
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
•
Never leave any valuable items in the vehicle unattended. Even a
locked vehicle is not a safe.
•
If the diode on the driver's window sill lights up for about 30
seconds when the vehicle is locked, the central locking system or
anti-theft alarm* is not working properly. Please have the malfunc-
tion repaired by an Audi dealer or qualified workshop.
•
The interior monitor of the anti-theft alarm* system will only
function as intended if the windows and the tilting panorama roof*
are closed.
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Doors and windows47
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data
Central locking switch– Press the
 button to unlock the vehicle ⇒fig. 39 ⇒.
– 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.
•
Locked doors could delay assistance in an emergency, poten-
tially putting lives at risk. Do not leave anyone (especially children)
in the vehicle.Note
The doors and the boot lid are locked automatically when the
vehicle reaches a speed of about 15 km/h (Auto Lock) ⇒page 42.
You can unlock the vehicle again via the central locking switch.Applies to vehicles: with anti-theft alarm systemDeactivating the interior monitor and tow-away protectionWhen the vehicle is locked, the alarm will be triggered if
movements are detected in the interior (e.g. by animals) or
if the vehicle's inclination is changed (e.g. during transport).
You can prevent the alarm from being triggered accidentally
by switching off the interior monitor and/or tow-away
protection.
Fig. 39 Driver's door:
Central locking switch
WARNING (continued)
Fig. 40 Front end of
the driver's door:
Swtiches for interior
monitor and tow-away
protection
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Lights and vision55
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data
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 them on manually 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.
•
The default sensitivity of the light sensor, which is set at the
factory, can be changed in the MMI menu Auto headlights
⇒page 56.
•
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. 51 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.
Fig. 51 Switch for
front fog lights
A1A2
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Lights and vision 58Applies 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. 55. 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. 56.
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:•
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.
Fig. 55 adaptive light
when driving
Fig. 56 Switch for
hazard warning lights
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Lights and vision59
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data
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. 57.
– 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.Caution
Do not use the main beam headlights or the headlight flasher if this
would dazzle oncoming traffic.
Fig. 57 Turn signal and
main beam headlight
lever
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