2009 AUDI Q7 alternator

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 _.,

& WARNING (continued)
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. •
Engine cooling system malfunction -L
A mo/function in the engine cooling system must be
repaired as soon as possible.
When the _ t symbol in the display blinks, then either the
engine coolant temperature is too high, or the coolant level
is too low. An additional driver message can also be
displayed by pressing the [ CHECK] button:
Switch off engine and check coolant level
- Pull off the road .
- Stop the vehicle.
- Turn off the engine.
- Check coolant level => page 338.
- Add coolant if necessary => page 339.
- Continue driving only after the engine coolant
warning/indicator light goes out.
- Contact your authorized Audi dealer for assistance if
necessary.
If the engine coolant level is correct, then the radiator fan may be
the cause of the malfunction.
If the O warning symbol (alternator malfunction) also lights up on
the instrument panel~
page 32, then the fan belt may be damaged .
Controls and equip ­
ment
Driver information display
& WARNING
• If your vehicle should break down for mechanical or other
reasons, park at a safe distance from moving traffic, turn off the
engine and turn on the hazard warning lights
~ page 76, "Emer­
gency flasher
A".
• Never open the hood if you see or hear steam or coolant
escaping from the engine compartment -you risk being scalded.
Wait until you can no longer see or hear steam or coolant
escaping.
• The engine compartment of any vehicle is a dangerous area.
Before you perform any work in the engine compartment, turn of
the engine and allow it to cool. Follow the warning stickers
~ page 324, "Engine compartment".
0 Note
Do not continue driving if the _f_ symbol illuminates. There is a
malfunction in the engine cooling system -you could damage your
engine. •
Engine oil pressure malfunction "l::;r.
The red engine oil pressure warning symbol requires
immediate service or repair. Driving with a low-oil -pres­
sure indication is likely to inflict severe damage to the
engine.
If the 'l::::11 symbol appears in the display and blinks, the oil
pressure is too low. An additional driver message can also
be displayed by pressing the [CHECK] button:
Switch off engine and check oil level
Immediate actions
- Pull off the road.
I • •

-L~A:::..:,: ir:....: b:!..::: a~g L.:: s:1y :...:s::..: t~ e:.: m:...:...:.. ________________________________________________ _
& WARN ING (continued )
cellular telephones and CB radios , et c.) must be performed by a
qualified technician who has the training and spec ial equipment
ne cessary .
• For any work on the airbag system , we strongly recommend
that you see your author ized Audi dealer or qual ified workshop .
• Never modify the front bumper or parts of the vehicle body.
• Always make sure that the side airbag can inflate without inter ­
ference :
- Never install seat covers or replacement upholstery over the
front seatba cks that have not been spe cific ally approved by
Audi.
- Never use additional seat cushions that cover the areas
where the side airbags inflate.
- Damage to the original seat covers or to the seam in the area
of the side airbag module must always be repaired immedi­
ately by an authorized Audi dealer .
• The airbag system can be activated only once. Afte r an airbag
has inflated , it must be replaced by an authorized Audi dealer or
qualified technician who has the te chnical information , training
and spe cial equipment necessary.
• The airbag sy stem can be deployed only once. After an airbag
has been deployed , it must be repla ced with new repla cement
parts designed and approved especially for your Audi model
version . Replacement of complete airbag systems or airbag
components must be performed by qualified workshops only .
Make sure that any airbag service action is entered in your Audi
Warranty
& Maintenan ce booklet under AIRBAG REPLACEMENT
RECORD .
• For safety reasons in severe accidents , the alternator and
starter are separated from the vehicle battery with a pyrotechni c
c ircuit interrupter.
- Work on the pyrotechni c circuit interrupter must only be
performed by a qualified dealer -risk of an accident!
& WAR NING (continued )
-If the vehicle or the circuit interrupter is s crapped , all appli­
cable safety precautions must be followed.
ffi For the sake of the environment
Undeployed airbag modules and pretensioners might be c lassified
as Pe rchlorate Material -special handling may apply, see
www .dtsc.ca .gov/hazardouswaste/perc hlo ra te . When t he veh icle or
parts of the restraint system inc luding airbag mod ules and safety
be lts wi th pre tensio ners are sc rapp ed, all ap plicab le laws a nd regu ­
l ations must be observed . Your authorized Audi dealer is fam iliar
wit h these requir ements an d we re co mmen d t hat yo u have your
dea ler perform this service for you. •
Other things that can affect Advanced Airbag
performance
Changing the veh ic le 's su spension system can change the way that
th e Advanced Air bag Syste m performs in a c rash. Fo r example,
using tire-rim combinations not approved by Audi, lowering the
v eh ic le, c hang ing the stif fness of th e suspe nsio n, in cl ud in g the
springs, suspension struts, shoc k absorbers etc . can change the
fo rces that a re m eas ure d b y the air bag senso rs and se nt to the elec ­
tronic control unit. Some suspension changes can, for example,
increa se the fo rce level s measured by the sen so rs and ma ke the
a irbag syste m dep loy in crash es in which it wou ld not dep loy if the
changes ha d not been made . Othe r kinds of change s may red uce
t he fo rce lev els measu red by the se nso rs a nd preve nt the airba g
from deploying when it should.
T he sens ors i n th e safe ty bel t buc kle for th e driver a nd fr ont
passenger seat tell the electronic control modu le if the safety belt is
l a tc h ed or not. I f th e safe ty belt is being used, the fron t airbag wi ll
deploy at a slight ly h igher rate of vehic le dece leration than if the
sa fe ty be lt is n ot b ein g use d. Therefore, i n a partic ular c ollisi on, it i s -.,

______________________________________________ A_ l_,_ p _h_ a_ b_e _t_ic _ a _ l _in _ d_e _ x __ lll
Important things to know . ... .. .... 241
Indi cator light ...... .. .... ... ..... 252
Monitoring ... .... .... ..... .. .... 252
PASSENGER AIR BAG OFF light ... .. 253
Repairs .. .... .... .... ... .... .... 255
Safety instructions ... .... ..... .. . 254
Side airbags ... .. .... .... ...... .. 257
Side curtain airbags ... .. .... .... . 260
Weight -sensing mat .... ........ .. 264
When must the system be inspected? ..
252
All Wheel Drive .. .... ....... ...... .. 294
Alloy wheels ... .. .... .... ..... .. .... 318
All-whee l drive
Winter tires .... .. .... ...... ... .. . 363
Alternator Malfunction . .... .... ........ ..... 32
Anti-freeze
See Engine coo lant system .. ...... . 337
Anti-glare inside day-night mirror .... 86, 87
Anti -lock brake system
How the ABS system works . .... ... 292
Warning/indicator lights .. .... .... .. 22
Anti-Slip Regulation System (ASR)
How the system works ........ .... 290
Anti-theft systems
Anti-theft alarm system ... ......... 63
Elec tronic immobilizer .. ... .... .... 51
Approach/departure angle ............ 302
Ashtray Front .. .... ... .. .... .... ...... .. 116
R ear .... ... .. .... .... ........... 116
Controls and equip­
ment Safety first
ASR
How the Anti-Slip Regulation System
works ...... ............. ...... 290
Asterisk What does it mean when something is
marked with an asterisk? .. ....... .. 6
Audi braking guard ....... .... ... .... 168
Error messages ....... .... ... .... 170
Settings ........... ... .... .... ... 169
Status messages .......... .... ... 170
Switching on and off .. .... .... .... 169
Audi Service Repair Manuals and Literature
401
AUTO mode AC climate contro ls ..... ...... .... 126
Auto Safety Hotline ..... ... ... .. .... . 229
Auto -Check Control ...... ..... ... .... . 30
Automatic belt retractor ... .. .... .... . 235
Automatic car wash
See Washing ............... .... .. 313
Au tomatic mode
Four -zone automatic comfort air
conditioning .... ...... ...... ... 132
Automatic Shif t Lock (ASU ...... ... ... 186
Automatic transmission
6 -speed automatic transmission .... 184
Automatic Shift Lock (ASU ...... .. . 186
Driving ...... ....... ...... .... ... 1 84
Dynamic shift program .... ........ 187
Emergency release for selector lever 189
F ail-safe mode ...... ... .. .... ... . 189
Ignition key safety lock ..... .. .... . 143 Manua
l sh ift program .. .. ....... .. 188
Selector lever .................... 185
Shift buttons ...... .... .... ...... . 189
Steering wheel with tiptronic® ..... 189
Average speed ....................... 40
Avo id damaging the vehicle ... .... .... 299
B
Background lighting
Lighting profiles . ......... ......... 79
Bass box ........... ... .. .... ...... . 371
Battery ...... .... ... .... .... .... ... 342
Battery location .......... .... .... 343
Charging ........................ 344
Important warnings when working on the
battery ...... ....... .... ...... . 343
Jump starting ................ .... 387
Low ...... ........... ....... .. .. 295
Replacing the battery ............ . 346
State of charge ................... 295
Voltage ........... ...... .... .... . 36
Winter operation ............ ... .. 342
Working on the battery ... ....... .. 343
Before driving ... .... .... ...... .... . 221
Blended gasoline .................... 325
Body cavity sealing .. .... .... .... ... . 318
Booster seats ...... ... .. .... .... .... 271
How do I properly insta ll a booster seat in
my vehic le? . .... .... .... ... .... 271
Safety instructions .... .......... .. 271
Brake assistant .......... .... .... ... 293
K ick -down .... .... ...... ...... ... 187 Brake booster ....................... 292
Vehicle operation Vehicle care Do-it-yourself service Technical data