2011 AUDI Q7 technical data

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-We recommend using only coolant additive Gl2 ++ (check the
l a bel) for yo ur vehicle. This coolant ad dit ive is available at au tho·
r ized Audi dealers . Other types of antifreeze can s ignificantly
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
eng ine coo lant . Adding radiator repa ir 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 .
Fig. 2 37 En gin e
c o mpar tmen t: C oolant
ex pansion tank
Before you c heck anything in the eng ine compartment,
always read and heed all WARNINGS~ & in "Working in
the e ngine compartment" on
page 301.
- Turn off the ignit ion .
- Let t he eng ine cool down .
- Place a thick rag over the coolant expans ion tank
~ fig . 237 and carefully twist the cap counter ·clockwise
~ & -
Vehicle OP-eration
-Read the engine coolant level in th e open coo lant expan ·
sion tank ~ fig . 2 3 7 . With a cold engine, th e coolant level
should be between the "min" and "max" ma rkings . Whe n
the engine is warm , the level may be slight ly above the
"max" marking .
The location o f the coo lant expans ion tank can be seen in the engine
compartment illustration=>
page 302 .
To obt ain an accurate reading , the engine must be sw itched off.
Th e expans ion t an k in your vehicle is equippe d with an electric coolant
level sensor.
When the coolant lev el is too low, the warning light in the Auto·Check
System=>
page 35 will blink until you add coolant and t he level has
been resto red to normal. Even though there is an electric coolant
level sensor, we st ill recommend you check the coolant leve l from
time to time.
Coolant loss
Coolant loss may indicate a leak in the coo ling system . In the event of
coo lant loss , the cooling system sho uld be inspected immed iate ly by
your authorized Aud i dea ler . It is not enough mere ly to add coolant.
In a
s ealed system, losses can oc cu r only if the boiling point of the
coolant is exceeded as a result of ove rheating .
& WARNING
The cooling system is under pressure and can get ve ry hot. Reduce
the ri sk of scalding from hot coolant by following the se steps.
• Turn off the engine and allow it to cool down .
• Protect your face, hand s and arms from e scaping fluid and
s team b y co ve ring the cap with a large, thi ck r ag.
• Turn the cap slowly and ver y carefully in a counter-clockwise
direction whil e applying light , downward pre ssure on the top of
thecap .
~
Vehicle care Do-it-yourselt service iTechnical data

Checking and filling -
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<£> For the sake of the environment
Drained coolant sho uld not be reused. A lways dispose of used coolan t
w hile observing a ll enviro nmental regulations .•
Radiator fan
The radia tor fa n switc hes on a utoma tically by itself
The radiator fan is driven by the engine via the V-belt. The v iscous
cl utch reg ulates the spee d of t he fan accord ing to t he tem pera ture o f
the coolant.
An aux ili ar y e lec tric r adi ator fan* sw itches on and o ff depend ing o n
coo la nt temperat ure and other vehicle operating conditions.
After you switch the engine off, the auxiliary fan can continue r unning
for up to 10 minutes -eve n w it h t he igni tion o ff.
It can even swit ch on
again later by itse lf => & , if
• t he tem pera ture of the e ngi ne coola nt rises due to the hea t build­
up from the eng ine in the engine compa rtment, o r
• th e engine compar tmen t heats up because the ve hicl e is parked in
intense s unlight.
& WARNING
• To reduce the risk of personal injury never touch the radiator
fan .
• The auxiliary electric fan is temperature cont rolled and can
switch on suddenly even when the engine i s not running.
• The auxiliary radiator fan switche s on automatically when the
engine coolant reaches a certain temperatu re and will continue to
run until the coolant temperature drops. •
Vehicle OP-eration
Brake fluid
Checking brake fluid level
The brake flu id l eve l can be checke d with a quick gl ance .
Fig . 238 E ngine
compa rtment : Brake
fluid rese rvoir
Before you check a nyt hin g i n th e eng ine compa rtment ,
always read and heed all WARNINGS=> & in " Working in
the e ng ine compartmen t" on
page 301 .
-Read the brake fluid level from t he bra ke flu id reservoir
=> fig. 238 . T he bra ke fluid leve l must be between the
" MIN " and "MAX" markings.
Th e brake fl uid rese rvoir is located at the rear partition of t he engine
compartment on the left side=>
page 302.
The fluid level may drop slightly after some time due to the auto­
m atic adjus tment o f th e brake pads. This is no t ca use for alarm .
If the brake fluid level falls
considerably below the "MIN" mark, t he
brake warn ing/i nd icator lig ht ( U.S. models :
BRAKE, Canadian mode ls:
ill ) will come on=> page 20 and=> page 34. Do not continue to
operate the vehicle . The complete brake system s hould be thorough ly
che cked by an au thori zed Aud i dea le r o r q ua lified wor kshop a nd the
cause corrected.
If t h e brake fl uid leve l is too low, the brake .,,_
Vehicle care Do-it-yourselt service iTechnical data

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Disconnecting the battery terminals
Some vehicle f unct ions (powe r window regula to rs, fo r ex am ple) are
lost if the batt ery t ermina ls are disconnec ted . These func tions hav e
to be re lea rne d after the battery term ina ls a re co nnecte d aga in . To
prev en t th is, t he battery should only b e disconn ecte d from th e
vehicle e lectr ica l system when absol ute ly necessary for repairs .
Vehicles not driven for long periods
If you do not drive your veh icle over a period of seve ra l days o r wee ks,
el ect rical compo nents are g radually cu t back or swi tched off . This
re duces ene rgy consumption an d maintains start in g ca pability ove r a
lo nger pe riod=>
pag e 263.
Take into consideration t hat when you unlock your vehicle, some
c onvenie nce func tions, such a s the m aster key remote function or
power seat ad justment , may not be ava ilab le. T he conven ience func ­
t ions wi ll be available again when you turn on the ignition and st art
t he engin e.
Winter operation
Dur ing the w inter months, batte ry capac ity tends to decrease as
t empe ra tures drop . This is beca use mo re powe r is also co nsu med
w hile starting, and the headlights, rear w indow defogger, etc ., are
used more often .
Avoid unnecessa ry power consu mptio n, part icularl y in city tra ffic o r
w hen trave ling on ly short distances . Let your author ized A udi deale r
ch eck t he capa city of the vehicle ba ttery before w inter sets in
=>
page 315. A well charged battery will not only prevent start ing
pro blems when the we ather is co ld, but wi ll a lso la st l onge r.
[ i J Tips
If you r ve hicl e is left s tandi ng for seve ral weeks at extremely low
tempe ratures, t he ve hicle battery should be removed and stored
w here it will no t free ze . T his will preven t it fr om being dam age d and
having to be replaced .•
Safety first
Working on the battery
B e es pec ially ca reful when workin g on o r nea r the
batt ery.
The battery is located un de r th e d rive r's se at . B efo re yo u
ch eck a nyth ing under the driv er's sea t,
read and heed all
WARNINGS =>& .
Always heed the safety warnings , when wo rking on the vehicle
battery or the ve hicle elect rical system to p reve nt injury .
The following WARNINGS are very important when
working on the battery:
Always heed the following WARNING SYMBOLS and safety pre ­
cautions when working on the battery.
@
Always wear eye protection.
Battery acid contains sulfuric acid. Always wear
gloves and eye protection.
No
- sparks
- flames
• smoking .
When a battery is charged, it produces hydrogen
gas which is explosive and could cause personal injury.
Always keep the battery well out of reach of chil­
dren.
& WARNING
Whenever working on the battery or on the electrical system ,
there i s the risk of injury, accident and even fire. Read and heed
the following WARNINGS: .,_
Vehicle care Technical data

Checking and filling Ill
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Battery charging
Starting the engine requires a well charged battery.
Fig. 239 E ngine
compar tmen t: Connec ­
t ors fo r cha rger and
j umper cables
Alwa ys read and h eed all WARNINGS below=> & and => &
in "Working on the battery" on page 313 .
- Turn off the ignition and all electrical consumers.
- Make sure the area is well ventilated when you charge the
battery.
- Open the hood :::::,
page 300.
-Open the red cover on the positive pole=> fig . 239 .
- Connect the charger connectors acco rding to the instruc-
tions to the
jump start bolts . (Bolts under the red cover=
"positive", Bo lts with hex head
= "negative") .
- Only now plug the mains lead for the charging equipment into th e wall outl et and turn it on=>
&-
- Make sure the charg ing rate is not over 30 amps /14.8
Volt.
- When the battery is fully charged: Turn the charging
equipment off and remove the ma ins lead from the wall
outlet.
Vehicle OP-eration
-Now remove the clamps for the charging equipment.
- Close the red cover on the positive pole.
- Close the hood :::::,
page 301.
A discharged battery can freeze at temperatures of only O 0C. Allow a
frozen battery to thaw completely before attempting to charge it
~ & .However, we recommend not using a thawed battery again
because the battery casing can be cracked due to ice format ion and
can leak battery acid.
Battery charging (Ma xim um cha rging rate of 30
am ps/ 14.8 Vol t)
When charging at low voltages (e.g. with a tric kle c harger ), the
battery cables do not have to be disconnected first . The battery caps
sho uld
not be opened when ch arging a battery.
It is not necessary to remove the battery from the luggage com part·
ment.
F a st charging the batter y (chargin g rate above 14.8
Volt s)
For technical reasons do not use a battery charger that uses voltage
greater than 14.8 Volts to charge your vehicle's battery.
& WARNING
Charging a batt ery can be dan ger ou s.
• Alwa ys foll ow the ope rating in str uc tion s provi ded b y the
batt ery c harger manuf acturer when charging your battery .
• Never char ge a frozen battery. It ma y explode be cause of ga s
trapped in the i ce. Allow a fr ozen battery to thaw out first .
• Do not reu se batterie s wh ich were fr ozen . The batter y hou sing
m ay ha ve crack ed and w eaken ed when th e batt ery froz e.
• Charge the b attery
in a well ventilated area . Keep away from
op en flame o r el ect rica l spark. Do not sm oke . Hydrog en gas gener -
ated by the b attery is ex plosi ve. •
Vehicle care Do-it-yourselt service Technical data

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- Before you check anything in the engine compartment ,
always read and h eed all WARNINGS ::::;, & in "Working
in the engine compartment" on
page 301 .
- Lift the filler cap tongue to add washer fluid. You can fill
the contai ner to the top .
- Press the cap back onto the filler neck after filling the container.
You can find the reservoir capacity in the table in~ page 365.
To prevent lime residue from building up on the spray jets, use
distilled water when refi lling. Always add a g lass cleaner so lution
(with frost protection in the winter).
0 Note
Do not mix engine coolant antifreeze or any other additives to fill up
the windsh ie ld washer rese rvo ir .•
Safety first Vehicle care Technical data

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& WARNING (co ntinued )
• Tires age even if they are not be ing used and can fail suddenly ,
e specially at high speeds . Tires that are more than 6 year s old can
only be used in an emergency and then with special care and at low
s peed .
Glossary of tire and loading terminology
Accessory weight
means the combined weigh t (in excess of those sta ndard items wh ich
may be replaced) of automatic transmission, power steer ing, power
bra kes, powe r win dows, power sea ts, radio, and heate r, to the exte nt
that these items are available as factory-insta lled equipment
(whet her i ns ta lled or no t).
Aspect ratio
means the r atio of t he he ight to t he widt h of the t ire in percent.
N umbers of 55 or lower indicate a low sidewa ll for improved steer ing
res ponse and bet ter over all h andling on dry p avemen t.
Bead
means the part of the t ire that is made of stee l wi res, w rapped or
re in forced by ply cords and that is shaped to fit the rim.
Bead separation
means a brea kdown of the bond between components in the bead.
Cord
means the st rands forming the plies in the ti re.
Safety first
& W ARNING (co ntinued )
• Never mount u sed tires on your vehicle if you are not sure of
their "previous history ." Old u sed tires may have been damaged
eventhoughthedamagecannotbeseenthatcanleadtosudden
tire failure and loss of vehicle control.
• If you notice unusual vibr ation 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 t ire pressu re recom mended by the vehicle manufa ctu rer
for a tire of a desig nate d size that has not been driven for more than
a couple of m iles ( kilomete rs) a t low speeds in the t hree hour per io d
before the tire pressu re is measured or adjusted.
Curb weight
means the weight of a moto r vehicle wit h standard equipment
incl uding the max imum ca pac it y of fue l, o il, and coo lan t, air condi ­
tioning and additiona l weig ht of optional eq uipment.
Extra load tire
means a tire design to operate at higher loads and at higher inflat ion
pressures than t he co rresponding sta ndard t ire. Extra load tires may
be identif ied as "XL", "xl", "EXTRA LOAD", or "RF" on the sidewa ll.
Gross Axle Weight Rating ( "GAWR ")
means the loa d-carrying capac ity of a sing le ax le system, measure d at
the t ire-grou nd interfaces.
Gross Vehicle Weight Rating ("GVWR")
mea ns the maximum tota l loaded we ig ht of the vehicle .
Vehicle care Technical data