2009 AUDI Q7 engine

& WARNING (con tinued)
ext reme caution when worki ng un der th e hood => pa ge 32 4,
"Engin e comp artm ent ".
[ i ) Tips
Many functions are monitored by the Auto -Check system
=>
page 30. Malfunctions or faults wil l be identified either with a red
symbo l (pr ior ity 1 -Danger!) or with a yellow symbol (priority 2 -
Warning). •
Electronic power control r
This warning/indicator light monitors the electr oni c
power control.
The warning/indicator light (E lectronic Power Control) illumi -
nates when you turn on the ignition as a function check .
[ i ) Tips
If this warning/indicator light illumi nates whi le you are driving, then
there is a malfunction in the engine electronics . Have the malfunc ­
tion corrected as soon as possible by your authorized Audi dealer or
qualified workshop .•
Electronic stabilization program (ESP) ~
This warning/indicator light monitors the electronic stabi ­
lization program .
The warning/indicator light has the following functions:
• It blinks while you are dr iving when the ESP is working.
• It illuminates when you switch on the ignition for approximately
2 seconds as a function check.
Controls and equip ­
ment
In st rum ent s a nd w arnin g/indi cato r ligh ts
• It illuminates when there is a malfunction in the ESP .
• It illumina tes when ESP or ASR (Anti -Sl ip Regulat ion) is deact i­
vated .
• It illuminates if there is a malfunction in the ABS, since the ESP
is part of the ABS system.
If the battery termina ls were disconnected and re -connected, the
vehicle was jump started or the battery is
very weak, the ESP senso r
system goes through a learn ing process for the first few yards . The
warning/indicator light i lluminates . The warning/indicator light
goes out as soon as the learning process is complete.
If the ESP warning/indicator light i lluminates and stays on after you
have started the engine, this may mean that the control system has
temporarily switched off the ESP. If this is case, you can reactivate
the ESP by turning the ignition off and then on again. The
warning/indicator light should go out to show that the system is
fully functional again.
For more information about the ESP=>
page 288. •
Airbag system
~i (USA models) / !_~-(Canada models)
This warning/indicator light monitors the airbag and the
tensioner systems .
The i (USA models) f! lt (Canada models) warning light i lluminates
for a few seconds each time you switch on the ignition.
I f the
ffl (USA mode ls) l! go out, or if it illuminates whi le you are driving, or if it starts to blink,
then there is a malfunction somewhere in the system. If the light
does not illum inate when you switch on the ignition, this also
means there is a malfunction. ..,_
I • •

Instruments and warning/indicator lights
& WARNING
If you have a malfunct ion in the airbag system, contact your autho­
rized Audi dealer immediately. Otherwise the airbag or the belt
tensioner may not work properly in an accident. •
Tire pressure monitoring system -telltale
indicator lamp '-)
The warning/indicator light appears in the event of a
significant loss of air pressure .
The ( warning/indicator light il luminates for a few seconds after
the ignition is turned on as function check and then goes out.
If the symbo l appears, pressure is too low in at least one tire.
When the system detects a malfunction, the warning/indicator light
will flash for approximately one minute and then remain continu­ ously i lluminated . This sequence wi ll continue upon subsequent
vehic le starts up as long as the malfunction exists. Contact your
authorized Audi dealer and have the malfunction corrected .
For more information
=> page 44. •
Turn signals ¢ Q
The indicator light blinks when you use either turn signal.
Whenever you use the left ¢i or the right¢ turn signal, the ind icator
light blinks. When you use the emergency flashers, both indicator
lights flash .
If one of the turn signal light bulbs burn out, the turn signal will
blink twice as fast as normal.
This does not apply, however, in towing mode . The indicator light
does not flash if a turn signal is out on the trailer or the towing
vehic le. Additional information on the turn signa ls=>
page 77 . •
App lies to vehicles: wi th tow ing h itch
Trailer turn signal assembly ¢ 19
The indicator light also blinks if the turn signal is operated
when towing a trailer.
The indicator light ¢1i> bl inks when the turn signal is used, if a trailer
has been properly connected to the vehicle.
If one of the turn signa l bu lbs on the trailer is burned out or defec ­
tive, the indicator light will not b link when you use the turn signals.
[ i ] Tips
For vehicles with a factory installed towing hitch or a trailer hitch
that was installed later according to factory specifications, the
trailer turn signa l assembly is actuated. •
Malfunction Indicator Lamp (MIL) :,
The Malfunction Indicator Lamp (MIU is part of the On-Board Diag ­
nostic (OBD II) system. The symbo l lights up when the ignition is
turned on and will turn off after the engine has started and has
settled at a constant idle speed . This indicates that the MIL is
working properly.
The warning light il luminates when there is a malfunction in the
engine electronic system. Contact your authorized Audi dealer and
have the malfunction corrected.
An improperly closed fuel filler cap may also cause the MIL light to
illuminate
=> page 327.
For more information => page 29. •

Malfun ction in the ele ctroni c diff erential lo ck (EDL )
The EDL wor ks to get her w ith t he ABS . T he ABS warn ing l ig ht will
come on if there is a ma lfunction in the EDL system=> page
290. See
you r author ized Aud i dea ler as soon as poss ible.
& WARNING
• If the J.. S (USA models l/ .J (Canada models ) warning light
does not go out , or if it comes on while driving , the ABS system is
not working properly. The vehicle can then be stopped only with
the standard brakes (without
ABS) . You will not ha ve the protec­
tion ABS provides. Contact your authorized Aud i dealer as soon a s
possible.
• USA model s: If the
BRAKE warning light and the B" warning
light come on together , the rear wheel s could lock up fir st under
hard braking . Rear wheel lock-up can cause loss of vehicle control
and an acc ident. Have your vehicle repaired immed iately by your
authorized Audi dealer o r a qualified workshop . Drive slowly and
avoid sudden , hard br ake applications .
• Canada models: If the brake warning light ID and the ABS
warning light come on together, the rear wheels could lock up
first under hard br aking . Rear wheel lock-up can cause loss of
vehicle control and an accident. Have your vehicle repaired imme ­
diately by your authorized Audi dealer or a qualified workshop .
Drive slowly and avoid sudden , hard brake applications. •
Parking brake
~E (USA models) /(®) (Canada models)
T he in dicat or li ght m onito rs the parking broke.
When the park ing brake is app lied and the ignition is switched on,
the indicator lig ht comes on
©l . The indicator light must go out
whe n the park ing brake is released. •
Controls and equip ­
ment
Instruments and warning /indi cator lights
Brake system BRAKE (USA models ) /(©) (Canada
models)
T he warning/indicator light fl ashe s if br oke flui d level is
low, if there is on A BS sys tem m alfunc tion o r a parkin g
br oke malfunction.
The lig ht illu min a tes w hen the igniti on is tur ned o n. I t goes out after
the engine has been started. Th is indicates that the brake warning
ligh t is functioni ng prope rly.
If the br ake warning light does not light up when the engine is
cranking , there may be a malfunction in the electrical system . In this
case , contact your Audi dealer .
I f the brake system warning/indicator light f lashes, there is a brake
sys tem malfunc tion. By p ressing t he
I CHECK ] button, you can br ing
up a driver message which explains the malfunction in more detail
=> page
32.
If the ABS fa ils, t he ABS warn ing/i ndicator light,.. (USA
mode ls)/ (Canada mode ls) flashes together with the brake system
warn ing/ind icator light~ .&,.
(USA models): If the warning light
BRAKE and the warning light,,.
il lumina te toge the r, im media tely co ntact y our auth orized Au di
dea ler or qua lified workshop to have all brake pads inspected
~ page 37.
W hen the l ight comes on, an audib le warni ng signal is a lso given.
& WARNING
• USA model s: If the BRAKE warning light and the warning
light come on together, the rear wheels could lock up first under
hard b raking . Rear wheel lock -up can cause loss of vehicle control
and an accident . Have your veh icle repaired immediately by your
authorized Audi dealer or a qualified workshop. Drive slowly and
avoid sudden , hard brake appli cations . .,_
I • •

Driver information display
[ i J Tips
Have the bulb replaced or the connection repaired by your autho­
rized Audi Service department. •
Service interval display
The service interval display reminds you when your next
service is due.
Fig . 14 MMI display:
Service interval display
Fig. 15 Display:
S er vice interval display
The date for service is calcula ted automatically .
Service inquiry (distance remaining )
The distance remaining to the next service event can be displayed
in the MMI => fig. 14. The distance remaining is updated each time the ignition is switched on, the first time after 310 miles (500 kilome­
t
ers).
If the distance remaining is queried on new vehicles or after service
has been performed, the due date within the first 310 miles (500
kilometers) is always shown in the display with the following
message.
SERVICE IN ----- MILES (KM) ---DAYS
Service reminder
30 days before the next service is due, a service reminder appears
in the display when you turn on the ignition=> fig. 15.
After about 5 seconds the display switches back to normal. The
distance and time remaining are updated each time the ignition is
turned on until the date due for service is reached.
Service
When the due date for service is reached, the message Service due
! appears in the display immediately after you turn on the ignition .
Additionally, a warning tone sounds . After about 5 seconds the
display switches back to normal.
0 Note
If you disconnect the battery terminals, no calculations can be
made for the service interva l display during this time and no service
reminder will appear. Remember that observing the proper service
interva ls is vitally important to extending the life of your vehicle,
particularly the engine, and maintaining its value. Even if the
mileage driven is low, the maximum period of one year from one
service to the next must not be exceeded.•

On-Board Diagnostic system (08D)
Malfunction Indicator Lamp (MIL)
The Malfunction Indicator Lamp (MIU ~ in the instrument cluster
~ page 17, fig. 7 is part of the On-Board Diagnostic (OBD ID system.
The warning/indicator light illuminates when the ignition is
switched on and goes out after the engine starts and the idle has
stabi lized . This indicates that the MIL is working properly.
If the light does not go out after the engine is started, or illuminates
while you are driving, a malfunction may exist in the engine system.
If the light starts flashing, the catalytic converter could be damaged.
Continue driving
with reduced power (avoiding sustained high
speeds and/or rapid accelerations) and have the condition
corrected. Contact your authorized Audi dealer.
If the light illuminates, the electronic speed limiter may also be
malfunctioning . For more information~
page 29, "Electronic speed
limiter".
An improperly closed fuel filler cap may also cause the MIL light to
illuminate
~ page 327. •
On-Board Diagnostics
Con tro ls and eq uip­
ment
Fig . 16 Location of
Data Link Connector
(D LC )
Driver information display
On-Board Diagnostics monitors the components of your emission
control system. Each monitored component in your engine sys tem
has been assigned a code. In case of a malfunction, the component
wil l be identified and the fault stored as a code in the control
module memory .
The M IL light may also illuminate if there is a leak in the on -board
fuel vapor recovery system. If the light illuminates after a refuelling,
stop the vehicle and make sure the fuel filler cap is properly closed
~ page 327.
In order to make an accurate diagnosis, the stored data can only be
d isplayed using special diagnostic equipment (generic scan tool for
08D).
In order to connect the special diagnostic equipment, push the plug
into the Data Link Connector (DLC). The DLC is located to the right of
the hood release~ fig. 16.
Your authorized Audi dealer or qualified workshop can interpret the
code and perform the necessary repair. •
Electronic speed limiter
Your vehicle may be factory equipped with tires that are rated for a
maximum speed of 130 mph (210 km/h). This is less than the
maximum speed of your vehicle. To reduce the risk of sudden tire
failure and loss of control if the vehicle is operated at excessive
speeds, your vehicle also has an electronic speed limiter. The elec­
tronic speed limiter prevents your vehicle from going faster than the
tire speed rating. For more information~
page 359.
If the engine control unit receives faulty vehicle roadspeed signa ls,
the Malfunction Indicator Lamp (MIU will i lluminate . If this
occurs, contact the nearest authorized Audi dealer for assistance. .,.
Vehicle care I I Technical data

Driver information display
& WARNING
Always observe the posted speed limits and adjust your speed to
suit prevailing road, traffic and weather conditions. Never drive
your vehicle faster than the maximum speed rating of the tires
installed. •
Auto Check Control
Introduction
The Auto -Check control monitors the function of certain vehicle
features and components . It simply makes sure these features and
components are working properly . The Auto -Check control works as
long as the ignition is on, as well as whenever the vehicle is driven.
If a component is malfunctioning or if the need for an urgent repair
has been detected, this will appear in the instrument cluster display.
You will also hear an audible warning tone . The displays are color
coded in either red or yellow depending on their level of priority .
A red symbol means
Danger, a yellow symbol indicates Warning. In
certain situations, information message for the driver appear in
addition to the red and yellow symbols.
Function test: automatic transmission
The Auto-Check Control will automatically perform a test each time
you switch on the ignition. With the selector lever in
P or N, the
following message appears in the display:
When stationary apply footbrake while selecting gear.
When you a select a different gear (for example: R, D, etc.), the
message will disappear and the Auto-Check function is displayed.
If there is a malfunction, then the malfunction message will appear
about 15 seconds after the you start the vehicle. At the same time
you will hear a warning tone .•
Driver information messages
Driver information messages are shown in the instrument
cluster display in addition to the red and yellow symbols.
Fig. 17 Instrument
cluster: CHECK button
For example, if the transmission selector lever is not in the P posi­
tion when the engine is turned off, the following message appears:
Shift to P, otherwise vehicle can roll away. Doors do not lock if
lever is not in P.
The ignition key can only be removed with the selector in this posi­
tion. This and other messages are brought up if a function cannot
be carried out.
Driver messages and red symbols
If a red symbol appears in the display, a driver message can be
shown by pressing the [
CHECK) button.
For example, the symbol for a problem with engine oil pressure
"1::71
appears in the display . If you then press the [ CHECK) button, the
following driver message appears in the display:
Switch off engine and check oil level
The driver message in the display goes out after about 5 seconds.
The driver message can be displayed again by briefly pressing the
!CHECK) button. ..

Driver messages and yellow symbols
If a yellow symbol appears in the display, a driver message is also
displayed automatically.
For example, the symbol appears in the display, indicating low
windshield washer fluid level. The following message also appears:
Please top up washer fluid
The driver message disappears after a few seconds. The driver
message can be displayed again by briefly pressing the
I CH ECK]
button. •
Red symbols
A red symbol means DANGER.
-Pull off the road.
- Stop the vehicle.
Turn off the engine.
Fig . 18 Display: engine
coolant level warning
(priority 1)
- Check the malfunctioning system. Contact your autho­
rized Audi dealer or a qualified workshop for assistance.
Red symbols indicate a priority 1 malfunction -Danger!
Con tro ls and eq uip­
ment
Driver information display
With a priority 1 malfunction, a large symbol appears in the center
area of the display => fig. 18. When the symbol appears,
three
warning tones sound in succession. The symbol continues to blink
until the malfunction has been repaired.
If there are
more than one priority 1 malfunctions, the symbols
appear one after the other for about 2 seconds.
An additional driver message can also be displayed by briefly
pressing the
! CHECK ] button.
The red symbols mean:
0
BRAKE

[ i] Tips
Alternator malfunction
USA models:
Brake system malfunction
Canada models:
Brake system malfunction
Engine coolant level too
low/engine coolant temperature
too high
Engine oil pressure too low
Faulty steering
Faulty ignition switch
=> page32
=> page 32
=> page32
=> page33
=> page 33
=> page 34
=> page 34
• If the warning/indicator light BRAKE (USA models)/ © (Canada
models) in the instrument cluster flashes, there is a brake system
malfunction. By pressing the
I CH ECK] button, you can bring up a
driver message which explains the malfunction in more detail.
Please note
=> page 32. ..
Vehicle care
I I irechnical data

Driver information display
• Speed warnings threshold 1 8 (USA modelsl/8 (Canada
models) and threshold
2 e , (USA modelsl/ 8 (Canada models) are
also shown as red symbols. The warning is always shown as a small
symbol in the upper area of the display=>
page 38. •
Alternator malfunction 0
If the O symbol in the instrument panel display flashes, then there
is a malfunction in the alternator or the vehicle electronics. A
warning to the driver will appear, too. The driver warning goes out
after about
5 seconds, but it can be brought up at any time by
pressing the
( CHECK ] button again.
Usually, you can still drive to the next dealership. Turn off all but the
most necessary electrical consumers, since these drain the vehicle's
battery.
0 Note
If the _t warning symbol (coolant system malfunction) also lights
up on the instrument panel during the trip=>
page 33, then you
have to stop immediately and turn off the engine. The coolant pump
is not working anymore -danger of damage to the engine! •
Brake system malfunction
A malfunction in the brake system must be repaired as
soon as possible.
If the warning/indicator light BRAKE (USA models)/ (©)
(Canada models) in the instrument cluster flashes, there is
a brake system malfunction. By pressing the [ CHECK]
button, you can bring up a driver message which explains
the malfunction in more detail.
Stop vehicle and check brake fluid level
-Pull off the road.
- Stop the vehicle.
- Turn off the engine.
- Check the brake fluid level=>
page 341.
-Contact your nearest authorized Audi dealer or qualified
workshop if necessary.
Warning! Fault in ABS brake system. Contact
workshop
- Drive carefully to the nearest authorized Audi dealer or
qualified workshop and have the malfunction corrected
=> & .
If the ABS system malfunctions, the ABS warning/indicator light illu­
minates together with the brake system malfunction warning/indi­
cator light=>& .
& WARNING
• Always observe the warnings in => page 324, "Engine compart­
ment", before opening the hood and checking the brake fluid .
• Driving with low brake fluid is a safety hazard. Stop the car and
get professional assistance .
• USA models: If the BRAKE warning light and the .-..-warning
light come on together, the rear wheels could lock up first under
hard braking. Rear wheel lock-up can cause loss of vehicle control
and an accident . Have your vehicle repaired immediately by your
authorized Audi dealer or a qualified workshop. Drive slowly and
avoid sudden, hard brake applications.
• Canada models: If the brake warning light and the ABS
warning light come on together, the rear wheels could lock up
first under hard braking. Rear wheel lock-up can cause loss of _.,