2009 AUDI Q7 coolant

___ C_h_ e_ c_k _in --== g'-- a_n _d_ f_il _li _n ..:::g:::..- ___________________________________________ _
models; 60% for Canadian models). This mixture both assures the
necessary frost protection and protects metal components in the
engine's cooling system from corrosion and scaling. It also raises
the boiling point of the coolant.
Do not reduce the concentration of the coolant in the summer by
adding plain water.
Th e pro port io n of coo la nt additi ve mu st be at
lea st 50 % but n ot mor e th an 60 %
to maintai n ant ifreeze protection
and cooling efficiency. If the coolant frost protection is too low , the
coolant could free ze and damage the veh icle heating and engine
cooling system .
For year-round driving , antifreeze is added at the factory for temper ­
atures down to:
• -31 °F ( -35 °c1 usA
• - 40 °F ( - 40 °C) Canada.
You can mix the
Gl 2+ + coolant additive with other additives (G12+
or G12). Always check w ith your authorized Audi dealer.
& WARNING
B efo re you che ck anyt hing in th e eng ine compartmen t, alway s
re ad a nd he ed all WARN ING S~
& in " Working in the engine
c ompar tm ent " on
page 33 1.
0 Not e
• Before winter sets in, have the coolant checked to see if the
coo lant additive in your vehicle is sufficient to meet the climate
conditions. This is especia lly important if you live in a region where
the winter is extremely cold . If necessary, increase the proportion of
coolant additive to 60%.
• When adding coolan t additive to your coo ling system,
remember:
-We recommend using only coolant additive
G12+ + (check the
label) for your vehicle. This coolant additive is avai lable at autho­
riz ed Audi dealers. Other types of antifreeze can significantly reduce corrosion protection. The resulting corrosion can cause a
loss of coolant and serious engine damage.
• Do not add any type of radiator leak sealant to your vehicle's
engine coolan t. Adding radiator repair fluid may adversely affect the
function and performance of your cooling system and could result
in damage not covered by your New Vehicle Limited Warranty. •
Checking the engine coolant level
The engine coolant level can be checked with a quick
glance.
F ig . 287 E ngine
com partm ent : Cool ant
ex pans io n tank
Before you check anything in the engine compartment,
alw ays read and h eed all WARNINGS ~
& in "Working in
the eng ine compartment" on page 331.
- Turn off the ignition.
- Let the engine coo l dow n.
Place a thick rag over the coola nt expansio n tank
~ fig . 287 and carefully twist the cap counter-c lockwise
~ & - .,

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•
- Read the engine coolant level in the open coolant expan­
sion tank :::::>
page 338, fig. 287. With a cold engine, the
coolant level should be between the "min" and "max"
markings. When the engine is warm, the level may be
slightly above the "max" marking.
The location of the coolant expansion tank can be seen in the
engine compartment illustration~
page 332.
To obtain an accurate reading, the engine must be switched off.
The expansion tank in your vehicle is equipped with an electric
coolant level sensor.
When the coolant level is too low, the warning light in the Auto­
Check System~
page 33will blink until you add coolant and the
level has been restored to normal. Even though there is an electric
coolant level sensor, we still recommend you check the coolant level
from time to time .
Coolant loss
Coolant loss may indicate a leak in the cooling system . In the event
of coolant loss, the cooling system should be inspected immedi­
ately by your authorized Audi dealer . It is not enough merely to add
coolant.
In a
sealed system, losses can occur only if the boiling point of the
coolant is exceeded as a result of overheating.
& WARNING
The cooling system is under pressure and can get very hot. Reduce
the risk of scalding from hot coolant by following these steps.
• Turn off the engine and allow it to cool down.
• Protect your face, hands and arms from escaping fluid and
steam by covering the cap with a large, thick rag.
& WARNING (continued)
• Turn the cap slowly and very carefully in a counter-clockwise
direction while applying light, downward pressure on the top of
the cap .
• To avoid being burned, do not spill antifreeze or coolant on the
exhaust system or hot engine parts. Under certain conditions, the
ethylene glycol in engine coolant can catch fire.
0 Note
Do not add any type of radiator leak sealant to your vehicle's engine
coolant. Adding radiator repair fluid may adversely affect the func ­
tion and performance of your cooling system and could result in
damage not covered by your New Vehicle Limited Warranty. •
Adding coolant
Be very careful when adding engine coolant.
Before you check anything in the engine compartment,
always read and heed all WARNINGS:::::> & in "Working in
the engine compartment" on
page 331.
- Turn off the engine.
Let the engine cool down.
Place a thick rag over the coolant expansion tank
=:> page 338, fig. 287 and carefully twist the cap counter­
clockwise :::::>& .
Add coolant.
- Twist the cap on again
tightly.
Replacement engine coolant must conform to exact specifications
~ page 337, "Coolant". Even in an emergency, if coolant additive .,,
Vehicle care I t •

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G12+ +, G12 + or G12 is not available, do not use a different addit ive .
Use p lain water ins tead until you ca n get the c orrec t additive and
can restore the correct ratio . This should be done as soon as
poss ible.
If you have los t a considerable amount o f coo lant, then you s hould
add co ld antifreeze and cold water only when the engine is cold .
A lways us e
new en gi ne c oolant when refi llin g .
Do not fi ll coo lant above the "MAX" mark. Excess coolant wil l be
forced out through the pressure relief valve in the cap when the
engine beco mes hot.
& WARNING
• The cooling sy stem is under pressure and can get very hot .
Reduce the risk of s calding from hot coolant by following these
steps .
- Turn off the engine and allow it to cool down.
- Protect your face, hands and arms from escaping fluid and
steam by covering the cap with a large, thick rag .
- Turn the cap slowly and very carefully in a counter -clockwise
dire ction while applying light , downward pressure on the top
of the cap .
- To avoid being burned , do not spill antifreeze or coolant on
the exhaust system or hot engine parts . Under certain condi ­
tions , the ethylene glycol in engine coolant can catch fire.
• Antifreeze is po isonous . Always store antifreeze in its original
container and well out of the reach of children.
• If you drain the coolant , it must be caught and safely stored in
a proper container clearly marked "poison ".
0 Note
• Coo lant po llutes t he e nviro nment and cou ld cause a n en gin e
fire. Excess coolant wi ll be forced out through the pressure re lief
va lve in the cap when the eng ine becomes hot.
• I f, in an emergency, on ly wate r can be added, the correct ratio
between wate r and ant ifree ze::::>
page 337 must be restored as soon
as possib le .
W For the sake of the environment
Drained coolant should not be reused. Always dispose of used
coo la nt whi le observ ing all env iro nmen tal reg ulat io n s. •
Radiator fan
The radiato r fan switches on au toma tic ally by i tself.
The radiator fa n is dr iven by the eng ine via th e V -belt. The visco us
clutch regulates the speed of the fan according to the temperature
o f t he coo la nt.
An auxiliary electric radiator fan * sw itches on and off depending on
coo la nt t empe rat ure a nd othe r vehic le operating c ondi tio ns.
A ft er you sw itch the e ngine o ff, the au xiliary fa n ca n conti nue
running for up to 10 m inutes- even with the ignition off. It can even
switch o n again lat er by itsel f::::> & , if
• the temperature of the eng ine coo lant rises due to the heat
bu ild -up from the eng ine in the eng ine compartment, or
• the engine compartment heats up because the vehic le is parked
in i ntense sun ligh t.
& WARNING
• To reduce the ri sk of personal injury never touch the radiator
fan .
~

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& WA RNING ! continued )
• The auxiliary ele ctric fan is temperature controlled and can
s w itch on suddenly even wh en t he engine is not runn ing .
• The auxiliary radiator fan swit ches on automatic ally when the
engin e coolant rea che s a cer tain temperature and will con tinue to
run until the coolant temperature drop s. •
Brake f luid
Checking brake fluid level
The brake fluid level c an be checke d with a quick gl ance .
Fig. 288 E ngine
comp artm ent: B ra ke
flui d rese rvoir
Be fore you check a nything in th e en g in e co mpart ment,
always read and heed all WARNINGS=> & in "Working in
t h e eng ine compartment" on
page 331.
- Read the brake fluid l eve l from the brake fluid reservoir
=> fig. 288. The brake flu id level mus t be between the
"MIN" and "MAX" markings.
The brake fluid reservoir is locate d at the rear partition of the engine
compartment on the left side=>
page 332.
The fluid level may drop slightly after some time due to the auto ­
ma tic adjustment of the brake pads. This is not cause for alarm .
If the brake fluid leve l falls
considerably below the "MIN" mark , the
brake warning/indicator light (U.S. models:
BRAKE , Canadian models:
«D> l will come on=>
page 23 and=> page 32 . Do not continue to
operate the vehicle. The complete brake system should be thor ­
oughly checked
by an author ized Audi dealer or qua lif ied workshop
and the cause corrected . If th e brake fluid level is too low, the brake
warning/indicator light w ill illumi nate. Contact an authorized Audi
dea ler
immedi ately .
[ i ] Tips
The brake fluid reservoir is located underneath the cover .•
Changing brake fluid
Have the brake fluid changed by an experience d techni ­
cian.
Brak e fluid absorbs mois ture from the air. If the wate r conten t in the
brake fluid is too high, corrosion in the brake sys tem may res ult
after a period of time . The boiling point of the brake fluid will also
decrease conside rably and decrease braking performance .
Therefore , the brake fluid mus t be changed
every two year s. Always
use new brake fluid which conforms to Federal Motor Vehicle S tan ­
da rd "FMVSS 116 DOT 4".
The brake fluid reservoir can be difficul t to reach, therefore , we
recommend that y ou have the brake fluid changed by your autho ­
rized
Audi deal er. Your dealer has the correct tools, the right brake
fluid and the know -how to do this for you .
& WARNING
• Brak e fluid is poi sonou s. It mu st be stored only in the clo sed
o riginal conta iner out of the rea ch of children! ..,.
Vehicle care I I irechnical data

-~_T_ ir_e_ s_ a_ n_d _ w_ h_ e_e _l_s _________________________________________________ _
& WARNING (continued)
crashes and serious personal injuries . Have worn or damaged tires
replaced immediately.
• Tires age even if they are not being used and can fail suddenly,
especially at high speeds. Tires that are more than 6 years old can
only be used in an emergency and then with special care and at
low speed.
Glossary of tire and loading terminology
Accessory weight
means the combined weight (in excess of those standard items
which may be replaced) of automatic transmission, power steering,
power brakes, power windows, power seats, radio, and heater, to
the extent that these items are available as factory-installed equip­
ment (whether installed or not).
Aspect ratio means the ratio of the height to the width of the tire in percent.
Numb ers of 55 or lower indicate a low sidewall for improved
steering response and better overall handling on dry pavement.
Bead
means the part of the tire that is made of steel wires, wrapped or reinforced by ply cords and that is shaped to fit the rim.
Bead separation means a breakdown of the bond between components in the bead.
Cord
means the strands forming the plies in the tire.
& WARNING (continued)
• Never mount used tires on your vehicle if you are not sure of
their "previous history." Old used tires may have been damaged
even though the damage cannot be seen that can lead to sudden
tire failure and loss of vehicle control.
• If you notice unusual vibration or if the vehicle pulls to one side
when driving, always stop as soon as it is safe to do so and check
the wheels and tires for damage . •
Cold tire inflation pressure
means the tire pressure recommended by the vehicle manufacturer
for a tire of a designated size that has not been driven for more than
a couple of miles (kilometers) at low speeds in the three hour period
before the tire pressure is measured or adjusted.
Curb weight means the weight of a motor vehicle with standard equipment
including the maximum capacity of fuel, oil, and coolant, air condi­
tioning and additional weight of optional equipment.
Extra load tire
means a tire design to operate at higher loads and at higher infla ­
tion pressures than the corresponding standard tire. Extra load tires
may be identified as "XL",
"xi", "EXTRA LOAD", or "RF" on the side ­
wall.
Gross Axle Weight Rating ("GAWR")
means the load-carrying capacity of a single axle system, measured
at the tire -ground interfaces.
Gross Vehicle Weight Rating ("GVWR"l
means the maximum total loaded weight of the vehicle.

Tires and wheels -_____________ .:.....::...=..____:__:_:_:_=-=----
•
& WARNING (continu ed )
• Incorrect tire pressure and /or under inflation can cause
in creased tire wear and can affect the handling of the vehicle and
stopping ability .
• Incorrect t ire pressures and /o r underinflat ion can also lead to
sudden tire failure, including a blowout and sudden deflation,
causing lo ss of vehicle control .
• The driver is respon sible for the correct tire pressures for all
tires on the vehicle. The applicable pre ssure values are located on
a sticker on the driver 's side 8-pillar or on the inside of the fuel
filler flap .
• Only when all tires on the vehicle are filled to the correct pres ­
sure , the tire pressure monitoring sy stem can work correctly .
• The use of incorrect tire pressure values can lead to accidents
or other damage . Therefore it is essential that the driver observe
the specified tire pressure value s for the tires and the correct pres ­
sures for the function of the tire pressure monitoring system.
• Always inflate tires to the re commended and correct tire pres ­
sure before driving off .
• Driving with underinflated tires bend more , letting them get
too hot resulting in tread separation , sudden tire failure and loss
of control.
• Ex cessive speed and /overloading can cause heat build-up ,
s udden tire failure and lo ss of control .
• If the tire pres sure is too low or too high , the t ires will wear
prematurely and the vehicle will not handle well .
• If the tire is not flat and you do not have to change a wheel
immediately , drive at reduced speed to the nearest service station
to check the t ire pressure and add air as required.
0 Note
Dr iving wi thout valve stem caps ca n cause damage to t he tire
valves. To prevent this, always make sure that factory instal led va lve
stem caps o n all wheels are sec urely mou nted on the va lve .
c£> For the sake of the environment
Underi nflate d tir es w ill a lso inc rease the fue l consu mptio n.•
Tires and vehicle load limits
There are li m its to the a mou nt o f load or weig ht th at any ve hic le and
any tire can carry . A vehicle that is overloaded wil l not handle wel l
and is more diff icu lt to stop . Overload ing ca n no t only lead to loss
of vehic le control, but can also damage important parts of the
ve hicle a nd can lead to sud den tire failu re, i nclu di ng a bl owou t and
sudden deflat ion that can cause the vehic le to crash.
Your safety an d that of your passengers also depends on ma kin g
su re tha t load l imits are not exceeded . Vehicle load includes eve ry ­
body and everything in and on the vehic le. These load limits are
t echnica lly re ferred to as the ve hicle's
Gross Vehicle Weight Rating
("GVWR"l.
The "GVWR" in clu de s th e we ig ht of t he basi c ve hicle, all fac tory
insta lled accessories, a ful l tank of fuel, oil, coolant and other fluids
plus m aximu m load. The maxi mum l oad inc lude s the n umber of
passen gers that the vehicle is intended to carry !"seating capacity")
with an assumed weight of 150 lbs (68 kg) fo r each passenger at a
designated seating position and the total weight of any lugga ge in
the vehicle. If you tow a trailer, the weight of the trailer hitch and the
to ngue we ig ht of th e loaded tra iler must b e included as par t of th e
vehic le load.
The
Gross Axle Weight Rating ("GAWR") is the m aximum loa d th at
can be applied at each of the vehicle's two ax les. _,,,
Vehicle care I t •

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& WA RNIN G (continu ed )
• The engine compartment of any motor vehi cle i s a potentially
h az ardou s area. N ev er re ach into the are a arou nd or to uch the
r a di ator fan . It is temperature co ntrolled and can swi tc h o n
s uddenly -even wh en the engine i s off and the ignition key h as
been removed . The r adiator f an switches on autom atic all y w hen
the coolant reache s a certain temperature and will continue to run
until the coo lant t emper ature drop s.
• Alway s remov e th e ignition key befo re anyone get s under the
v ehi cle .
• Alway s s upport your vehi cle with safety sta nd s if it i s ne ces­
sa ry to wor k unde rne ath the veh icle . The ja ck suppl ied with the
v ehic le i s not adequ ate for thi s purpo se and could coll ap se
c au sin g s eriou s per son al in jury .
• If you m ust w ork under neath the vehi cle with the wheel s on
the ground , alwa ys m ake sure the veh icle i s on l eve l ground , that
the wheels ar e always securely blocked and that the engine
ca nn ot be sta rted .
• Alway s mak e sure the tran sm iss ion selecto r leve r (automatic
tr ansmi ssion ) is in "P " (P a rk po sition ) and the park brake is firml y
applied .
c£> For the sake of the environment
• Changing the engine settings w ill adverse ly affect emission
levels . This is detrimenta l to the environment and increases fuel
consumption.
• Always observe environmenta l regu lations when disposing of
old engine oil, used brake fluid, dirty engine coolant, spent batteries
or worn out tires.
• Undeployed airbag modules and pretens ioners might be classi ­
fied as Perchlorate Material -specia l handling may apply, see
www .dtsc .ca .gov/hazardouswaste/perchlorate. When the vehicle or
parts of the restraint system including airbag modules safety belts
with pretens ioners are scrapped, all applicable laws and regu la-
Controls and equip­
ment Safety first Vehicle operation
tions must be observed. Your authorized Audi dealer is familiar with
these requirements and we rec
ommend that you have your dea ler
perform this service for you .•
Additional accessories ,
modifications and parts replacement
Addition al a ccessori es and parts
replacement
Always c onsul t an authorized Audi dealer before
purchasing accessories.
Your vehicle incorporates the latest safety design features ensuring a high standard of act ive and passive safe ty .
This safety could be compromised by non -approved changes to the
vehic le . F or this reason, if par ts have to be replaced, please observe
the following points when insta lling additiona l accessories:
Approved Audi accessories and genuine Audi parts are avai lable
from authorized Audi dealers.
These dealers also have the necessary facilities, tools and trained specialis ts to install the parts and accessories prope rly.
& WARNING
Using the wrong spare part s or u sing non-approved acce ssorie s
can c ause seri ous persona l injur y.
• Use onl y acc essorie s ex pres sly approved by Audi and g enuine
Audi spare p art s
• The se p art s and acce ssorie s have been spe cia lly de signed to
be used on you r vehi cle .
• Nev er in stall acc ess orie s s uch a s telep hone cra d le s or
be ver age holder s on airb ag cover s or within th e airbag deploy-
Vehicle care Do-it-yourself service Tec hn ica l da ta

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A
Accessories . . . . . . . . . . . . . . . . . . . . . . . . 403
Adaptive Air Suspension .... ... .. .... 206
Cargo mode in the MMI ....... .... 212
Controls . . . . . . . . . . . . . . . . . . . . . . . . 207
Description ... ...... ............ 206
High level . . . . . . . . . . . . . . . . . . . . . . . 207
Highway level . . . . . . . . . . . . . . . . . . . 207
Instrument cluster display .. .... ... 209
Jacking mode when changing a flat tire . 210
Low level ... ... ... .... ..... .. ... 207
Normal level . . . . . . . . . . . . . . . . . . . . 207
Segment display . . . . . . . . . . . . . . . . . 208
Setting the driving modes ......... 208
Trailer towing mode ... .... .... ... 211
Using sw itch for cargo mode .. .... 212
Warning/indicator lights . .......... 21
Adaptive Cruise Control .. .... ..... ... 152
Changing speed ................. 156
Driver information ............... 160
Driver intervention prompt ........ 164
Driving in traffic 154
Driving program .. .... .... .... ... 165
Error messages . . . . . . . . . . . . . . . . . . 163
Open road . . . . . . . . . . . . . . . . . . . . . . 154
Override . . . . . . . . . . . . . . . . . . . . . . . . 154
Request for driver to assume control 154
Save speed . . . . . . . . . . . . . . . . . . . . . . 156
Setting distance . . . . . . . . . . . . . . . . . 158
Setting time interval .............. 158
Settings ........................ 165
Specia l driving situations ......... 165 Status
messages . ....... ... .. ... . 163
Switching on and off .. ........... 155
System limits .. .................. 165
Temporarily turning off ......... .. 157
warn ing/indicator lights ........... 161
Adaptive Light .... ...... ...... ... ... . 76
defective ......................... 37
Adding Engine coolant ... ....... .... .... . 339
Engine oil ... .. .. . ... ....... .... . 336
Windshield washer fluid ...... .... . 346
Additiona l accessories .......... .... . 403
Additives Engine oil ....................... 336
Adjusting Instrument cluster i llumination . .... . 17
Steering column electrically ....... 141
Steering column manually ......... 140
Adjusting front seats .... .... .... . ... . 92
Advanced Parking System with rear view
camera
Adjusting the chimes -option 1 . ... 201
Adjusting the chimes -option 2 .... 202
front and back with visual display and
rear -view camera . . . . . . . . . . . . . . . 191
General information ......... ..... 191
Notes on distance information ... .. 200
Parking next to obstac les . . . . . . . . . . 199
Rear-view camera -parking mode 1 196
Rear -view camera -parking mode 2 . 198
Rear -view camera (Rear View) ... ... 194
Rear -view camera coverage area . . . . 195
Rear -view camera tips ............ 204 Special parking
situations ... .. .. .. 199
Switching the rear-view camera on and
off .... . ... .... .... ... .. .... ... 203
switching the visua l display on and off ..
203
System error message ............ 204
Towing hitch ...... .... ...... .... 201
Air conditioning
See Climate controls 123
Air distribution Climate controls ... ....... .... ... 127
Four -zone automatic comfort air
conditioning ................... 133
Air pol lutants fi lter
Climate controls ................. 123
Airbag Warning/indicator lights . ...... .... . 19
Airbag system .... .... .... ... ... 241, 258
Advanced Airbag System ...... .... 245
Advanced Airbag System components . ..
248
Care ........................ .... 255
Child restraints .................. 265
Children ... .... .... ... ...... ... . 264
Components (front airbags) . ....... 248
Danger of fitting a chi ld safety seat on the
front passenger seat . . . . . . . . . . . . 243
Disposal ............. ....... .... 255
Front airbags .. ........ ...... 245, 246
How do the front airbags work? . ... 250
How many airbags does my vehicle have? 248
How the Advanced Airbag System compo -
nents work together . ........ .... 249