2008 AUDI A4 AVANT ECU

BRAKE
(Ci))
BRAKE
_j_
COOLANT
~
OIL
PRESSURE USA
models:
Malfunction in the brake system
Canada models:
Malfunction in the brake system
Engine coolant level too low/
engine coolant temperature too
high
-
Engine oil pressure
too low =>
page 31
=> page 31
=> page 31
=> page 32
Red symbols indicate a priority 1 malfunction -Danger!
When a red symbol appears , a warning tone will sound consecu­
tively three times. The symbol continues to flash until the malfunc ­
tion has been repaired. If there are more than one priority 1 malfunc­
tions, the symbols appear one after the other for about two
seconds .a
Brake system malfunction BRAKE (USA models)/
(CD) (Canada models)
A malfunction in the brake system must be repaired as soon as possible.
When BRAKE/ (CD) (Canada models) appears in the display
and flashes, this means there is a malfunction in the brake
system. In addition to the symbol, one of the following two
messages also appears in the display:
Stop vehicle, check brake fluid and hydraulic fluid levels
Warning! Fault in ABS brake system. Contact workshop!
- Pull of the road and stop the vehicle.
- Check the brake fluid
level :::;, page 284.
Controls and equip ­
ment
Driver information display
USA models : if there is a malfunction in the ABS system, the ABS
warning/indicator light illuminates along with the BRAKE system
malfunction warning/indicator
light=> ,&..
Canada models: if there is a malfunction in the ABS system, the 0
warning/indicator light illuminates together with the ((l)) brake
system malfunction warning/indicator
light =>,&. .
& WARNING
• Always observe the warnings in => page 265, "Engine compart­
ment", before opening the engine hood and checking the brake
fluid.
• Driving with low brake fluid is a safety hazard! Stop the car and
get professional assistance.
• If the brake system warning/indicator light illuminates
together with the ABS warning/indicator light, then the ABS
system is malfunctioning. The rear wheels could quickly lock up
when you apply the brakes. This could lead to loss of control and
your vehicle could slide! Drive carefully to the nearest authorized
Audi dealer and have the malfunction corrected. •
Engine cooling system malfunction -L
A malfunction in the engine cooling system must be
repaired as soon as possible.
When the - L symbol in the display flashes, then either the
engine coolant
temperature is too high, or the coolant level
is too low. In addition to the symbol, the following message
also appears in the display:
Switch off engine, check coolant level
- Pull off the road and stop the vehicle.
- Turn off the engine.

Opening and closing
Opening and closing
Keys
Key set
The key set for your vehicle includes:
Fig. 45 K ey set
@ two master keys (press the release button ~ page 53,
fig. 46 to fo ld and unfold the master key)
@ one valet key
© and one emergency key
Master key with remote control
You can centrally lock and unlock your vehicle and start the engine
with the master key with remote control.
Valet key
The valet key fits only the driver's door and the ignition lock. If you
have to leave the key with somebody else, you are well-advised to
turn over the valet key only. Be
aware that the rear lid can be opened from inside the vehicle with
the remote rear lid release located in the driver's door .
In this state the rear lid can be unlocked only with the remote
control un lock bu tton
c:::::5 on the master key.
Emergency key
The emergency key is only for temporary use if the vehicle key
should be lost or
misplaced~ &.
Key replacement
If you lose a key, contact your authorized Audi dealer immediately
to have the
lost key disabled. Be sure to bring all your keys with you .
L1}. WARNING
• Do not leave your vehicle unattended with the key in the igni­
tion lock . Entry by unauthorized persons could endanger you or
result in theft or damage the vehicle. Always lock all doors and
take the key.
• Do not leave children unattended in the vehicle , especially with
access to vehicle keys . Unguarded access to the keys provides
children the opportunity to start the engine and/or activate vehicle
systems such as the power windows. Unsupervised operation of
any vehicle system by children can result in serious injury .
[ i ] Tips
• If you open the driver's door with the key left in the ignition lock,
a chime will sound. This is your reminder to remove the key and lock
the door.
• For security reasons, replacement keys are only available from
Audi dealers.
•

Opening and clo sing
& W ARNI NG (c onti nued )
• Do not le ave ch ildr en in side th e vehicle uns upervi sed. In an
em erge ncy it would be i mpos sible to open t he doors from the
out side w it h out the key .
[ i] Tips
• In the event of a crash with airbag deployment all locked doors
wi ll be automatically unlocked to give access to the vehicle occu­
pants from the outside .
• If the power locking system should fail, you can still open the
fue l tank flap in an emergency =>
page 271.
• You are well advised not to keep va luables inside an unattended
vehicle, visible or not. Even a properly locked vehicle cannot provide
the security of a safe!
•
Keyless entry remote control
General description
The remote controls allows you to :
• lock or unlock the vehicle
• selectively unlock the rear lid.
The turn signals will flash briefly whenever you lock or unlock the
veh ic le . Also, the interior light will come on or go off whenever you
open or close the driver's door.
T he transmitter and battery are located in the head of the remote
control. The receiver is located inside the vehicle. The maximum
effective range depends on several things. Remember, if the battery
is weak, the effective range decreases .
The remote-contro l key contains a fold-out key that you can use to
manually lock or unlock the vehicle and to start the engine . I
f you need to replace the remote control, or if you need to have it
repaired, you must see your authorized Audi dealer. Only then can
you use the key again .•
Unlocking and locking the vehicle with the
remote control
How the remote cont rol works.
To unlock the vehicle 0
- Press button @.
Fig. 4 9 Rem ote
co ntrol: fu nct ion
b utto ns
- Press bu tton @ two times within two seconds to unlock
all doors and th e rear lid .
To lock the v ehi cle 6
- Press button ® => & in "General description" on
page
55.
- Watch that a ll turn signal lights flash once .

Opening and closing
How to lock all doors and the rear lid
simultaneously
P ress lower p art of t he power lock ing sw itc h i:a,,:=:
=> page 59 , fig. 53 => &.
How to unlock all doors and the rear lid
simultaneously
- P ress the upper part o f th e s witch (il) .
How to unlock each door separately using the
door handle (front doors)
- P ull the hand le to open the door.
How to unlock each door separately using the
door handle (rear doors)
- Pull the door ha ndle once to re lease the lock.
- Pull the handl e
twi ce to open th e doo r.
If you lock the vehicle us ing the power locking switch , pl ease no te
the following :
• Y ou cannot open the doors or the rear lid from the
outside
(increas ed s ecu rity, for exa mple when yo u are s top ped at a r ed
l ight).
• You can unlock and ope n th e doo rs fr om the inside by pu lling on
the doo r handle.
• If the drive r's door is opened (a fter yo u have loc ked the ve hicle
from the i nside using the power locking switch), the door will
rem ain un loc ked to p revent you from lock ing you rsel f ou t of yo ur
vehic le. Afte r you c lose the door, you have to lock the driver's door
aga in.
• I f you have a c rash and the air bag is activated, the door s auto ­
m at ica lly u nlock.
& WARNING
• If you use the power locking switch with the doors closed ,
remember that all the vehicle doors will lock .
• Locking doors from the inside can help prevent inadvertent
door opening during an accident and can also prevent unwanted
entry from the outside . Locked doors can , however , delay assis ­
tance to vehicle occupants and hold up rescue efforts from the outside in an accident or other emergency . •
Rear power locking switch
Ther e is a lso a powe r Jockin g sw itch in the rear center
con sol e f or pa ssen gers s ittin g in th e re ar.
F ig . 54 Rear p owe r
loc king switch
- Pr ess s wit c h i:a,,:=: => fig . 54 to loc k the vehi cle => & in
" Lo ckin g an d unloc kin g t he ve hic le from in sid e" on
p ag e 59 .
This switch does not unlock the doors .

Applies to vehi cles: with Ligh ting p ackag e
Coming home/leaving home function
The coming home/leaving home function switches on the
external lights on a vehicle parked in the dark to illumi ­
nate the surroundings.
Activating the function
Fig. 75 Dashboard
detail : coming
home/leaving home
switch beside light
switch
- Briefly press the knob => fig. 75 (colored dot) so it will
stand out from the panel.
- Turn the knob to position
1.
- Push the knob back in to secure its setting.
Deactivating the function
- Briefly press the knob => fig. 75 so it will stand out from
the panel.
- Turn the knob to position
0.
- Push the knob back in to secure its setting.
Controls and equip ­
ment
Clear vision
The coming home/leaving home function is controlled by light
sensors located in the inside mirror housing and stem. The system
is activated if all of the conditions below are fulfilled :
• the knob has been turned to position
1
• the driving lights and the ignition have been switched off
• the vehicle is parked in poor light or darkness with the sensors
detecting little or no light at all.
Coming home situation
In darkness, the activated system will turn on the front fog lights and
rear licence plate light as soon as the driver's door is opened from
inside .
As long as one of the doors or the rear lid remains open, the set of
external lights will keep burning for about two minutes maximum.
To provide light for departure, the set of vehicle lights will keep
burning for about another 30 seconds after all doors and the rear lid
have been closed.
The factory -set time of 30 seconds until the lights are switched off
can be adjusted if you prefer a longer or shorter duration. Have the
adjustment done by your Audi dealer or a qualified workshop. The
system can be adjusted to keep the lights burning for a maximum
of 60 seconds.
Leaving home situation
As soon as the vehicle is unlocked by pressing the ti button on your
remote control, the set of external lights is switched on.
The external lights are switched off as soon as the driver's door is
opened from outside. Even if you had the system readjusted to keep
the lights burning for an extended time for coming home, the
external lights will be turned off if you do not open the driver's door
within 60 seconds after unlocking see chapter "Opening and Closing" in your Owner's Manual. If the lights are switched off
before you reach the driver's door, press the
0 button once more to
turn them on again. _,,,

Clear vision Installing new wiper blades
Wiper blades in good condition help keep the windshield
clear.
@
'
Removing the wiper blade
Fig . 89 Removing the
wiper blade, driver's
side
Fig . 90 Installing a
new wiper blade
-Lift the wiper arm away from the windshield.
-Insert your thumb into the small gap behind the blade
retainer
clip @==> fig. 89 and push the clip off the wiper
arm end.
-Take the blade off the wiper arm, arrow ®·
Installing a new wiper blade
-Slide the retainer clip on the new blade back to expose
the connector plug .
-Insert the plug into the matching recess on the wiper arm
@==>fig. 90.
-Push with your thumb on the blunt end of retainer clip to
insert the clip with its tab into the wiper arm profile ,
arrow @.
-Keep pushing the clip in until only a small gap remains
between the retainer clip and the end of the wiper arm.
Only after the new blade has engaged with a faint click is
it securely attached to the wiper arm.
-Fold the wiper arm back onto the windshield.
The wiper blade on the driver's side measures 21.65 in. (550 mm) in
length, the wiper blade on the passenger side 22.83 in. (580 mml.
Clean your wiper blades regularly with a windshield washer solution
to prevent streaking. If the blades are very dirty, for examp le with
insects, carefully clean the blades with a sponge or a soft brush.
If the wiper blades begin to streak the windshield, this could be
caused by residue left on the windshield by automatic car washes.
Fill the windshield washer container with a special solution avail­
able at your authorized Audi dealer to remove the residue.
Be sure to inspect the condition of your wiper blades regularly. For
safety reasons, replace your wiper blades once or twice a year if
necessary. See your authorized Audi dealer for replacement
blades. ~

___ S_ e
_ a_t_s _ a_n_ d
__ s _t _o _r_a ...::g==---- e ________________________________________________ _
Folding backrest
You can fold down either or both parts of the rear back­
rest.
Folding backrest down
Fig . 105 Rear back·
rest: release lever
-Move the safety belt to the side as far as it will go.
- Push forward release
lever @~ fig. 105 in direction of
arrow.
- Fold the backrest down .
Returning backrest to upright position
- Push rear seat backrest up until it
engages ~& . You will
know that the seat is properly engaged when you cannot
see the red marking on the lever@.
The rear seatback is divided into two sections -one third/two thirds.
You can fold down either or both parts of the seatback .
& WARNING
• The backrest must always be securely latched so that the
safety belt of the center seating position can work properly to help
protect the occupant.
• The backrest must be securely latched in position so that no
items contained in the luggage compartment can slide forward
upon sudden braking.
• Never allow safety belts to become damaged by being caught
in door or seat hardware.
• Torn or frayed safety belts can tear and damaged belt hardware
can break in a crash. Inspect the belts periodically. Belts showing
damage to webbing, bindings, buckles, or retractors must be
replaced.
0 Note
When folding the backrest back into place, make sure the safety belt
does not get caught, because it can be damaged . A damaged belt
can fail to provide safe restraint. •

___ S_ e
_ a_t_s _ a_n_ d
__ s _t _o _r_a ...::g==---- e ________________________________________________ _
Fastening eyes
The luggage compartment is equipped with four tie-down
eyelets to secure luggage and other items.
Fig. 109 Luggage
compartment:
fastening eyes
Use the fastening eyes to secure your cargo properly
~ fig. 109 -arrows-.
Adhere to all safety
instructions ~ page 173, "Stowing
luggage".
In a collision, the laws of physics mean that even smaller items that
are loose in the vehicle will become heavy missiles that can cause
serious injury. Items in the vehicle possess energy which vary with
vehicle and the weight of the item . The vehicle speed is the most
significant factor.
For example, in a frontal collision at a speed of 30 mph (48 km/hl,
the forces acting on a 10 lbs (4,5 kg) object are about 20 times the
normal weight of the item. This means that the weight of the item
would suddenly be about 200 lbs (90 kgl. You can imagine the inju ­
ries that a 200 lbs (90 kg) item flying freely through the passenger
compartment could cause in a collision like this.
& WARNING
Weak, damaged or improper straps used to secure items to
fastening eyes can fail during hard braking or in a collision and cause serious personal injury .
• Always use suitable mounting straps and properly secure
items to the fastening eyes in the luggage compartment to help
prevent items from shifting or flying forward.
• When the rear seat backrest is folded down, always use suit­
able mounting straps and properly secure items to the fastening
eyes in the luggage compartment to help prevent items from flying
forward into the passenger compartment.
• Never attach a child safety seat tether strap to a fastening
eye. •
Applies to vehicles : w ith cargo net
Elastic cargo net
The cargo net prevents light objects from sliding around
in the luggage compartment.
Fig . 110 Luggage
compartment: cargo
net .,_