2011 AUDI Q7 radiator

llft!I __ C_ h_ e_c _k _i _ n _g ~ a_n _d_ f_il _l_in _ g _________________________________________ _
& WARNING (conti nu ed )
• To avoid being burned, do not spill antifreeze or coolant on the
exhaust system or hot engine part s. Under certain condit ion s, the
ethylene glycol in engine coolant can catch fire.
0 Note
Do not add any type of radiator leak sealant to yo ur vehicle's engine
c oo lant. Addi ng radia tor repa ir fluid m ay adverse ly affe ct the func­
tion and performance of your cooling system and could result in
damage not cove red by y our New Vehicle Lim ited Warr anty. •
Adding coolant
Be very careful when adding engine coolant.
Before you check anyt hing in th e eng ine co mpart ment ,
always read and heed all WARNINGS => & in "Wor king i n
t h e e ngine compa rtment" on
page 301.
- Tur n off the eng ine.
- Let t he engi ne c ool d ow n.
- Place a thic k rag over th e coolan t expans ion tank
=> pag e 309, fi g. 237 and carefully twist t he cap cou nter ­
cl ockwi se
=> &.
- Add coo lant.
- Tw ist the ca p on aga in
tightly .
Replacement eng ine coolant must conform to exact specifications
=>
page 308, "Coolant". Even in a n emergency, if coolant addi tive
Gl2 ++, Gl2 + or Gl2 is not available, do not use a different addit ive.
Use plain wate r in st ead until you can get the cor rec t additive an d can
restore the correct ratio. This shou ld be done as soon as possible. If
you have lost a considerable amount of coolant, then you sho uld
a d d c old an tifr ee ze and cold wa ter only when the e ngine is cold.
Always use
new engine coo la nt when refilling.
Do not fill coolant above the "MAX" mark. Excess coolant will be
fo rced o ut thr ough the p re ssur e relief v alve in the c ap w hen the
eng ine becomes hot.
& 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
s team by covering the cap with a large, thi ck rag .
- Turn the cap slowly and very carefully
in a counter-clockwise
direction while applying light, downward pre ssure on the top
of the cap.
- To avoid being burned, do not spill antifreeze or coolant on
the exh aust system or hot engine parts . Under certain condi­
tions , the ethylene glycol in engine coolant can catch fire.
• Antifreeze is poisonous. Always store antifreeze in its original
container and well out of the reach of children.
• If you drain the coolant , it mu st be caught and safely stored in
a proper container clearly marked "poison ".
0 Note
• Coolant poll utes the environment and could cause an engine fire.
Excess coolant w ill be forced o ut thro ugh the pressure relief va lve in
t he c ap when t he e ngine becomes hot.
• If, i n an emergency, only water can be added, the co rrect ratio
between wate r and an tifreeze=>
page 308 mus t be res to red as soo n
as possib le. _..

Checking and filling -
------------- ------=------=:;______,.J,,...
<£> 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

_____________________________________________ C_o_ n_s _u_ m __ e_r _ I_ n_ f_o _r_ m_ a_ t_ i _o_ n __ _
• oil cha nges, and
• cl ea ning or re placing th e air fi lter.
W For the sake of the environment
By regu larly ma intaini ng yo ur vehicl e, y ou h elp m ake su re th at em is­
sion standards a re mainta ined, t hus mi nimizing adverse effects o n
t he enviro nmen t. •
Important considerations for you and your
vehicle
Th e increas ing use of elect ronics, s ophistica ted fuel inje ct io n and
em ission cont rol systems, and t he generally increasing tec hnical
c omplex ity o f today' s automobile s, have s tea dil y re duced t he s cope
of maintena nce and repairs w hic h can be carr ied out by ve hicle
ow ners.
Also, safety and environmental c o nce rn s plac e very s trict
limits o n the nature of repa irs and adjustments to engine an d tra ns­
mission parts w hich an owner can pe rform .
M ain te nance, ad justm ents and r epairs us ua lly re quir e spec ia l t ools,
test ing devices an d other e quipment availab le to s pecia lly trained
wo rksh op pe rsonnel in order to assure pro per perfor mance, re li­
ability and safety of the vehicle and its many systems.
Impro per ma inte nance, adjustments and rep airs can im pa ir the ope r­
ation and reliability of your ve hicle and even void your veh icle
wa rranty . Therefo re, p ro of of se rvicing in a ccordance wi th t he ma in ­
t enance sch edul e may be a co nd it io n fo r u phold ing a possib le
wa rranty claim made w it h in the wa rranty pe riod.
Above all, operat io nal safety ca n be adve rsely affec ted, c reat ing
unnecessary r is ks for you and your passe ngers.
If in doubt abou t any serv ic ing, have it done by your authorized Audi
dealer or a ny o ther pro perly equipped a nd qualified workshop . W e
st rong ly ur ge you to give yo ur auth oriz e d Aud i dea ler the opportu nity
t o pe rform all sc heduled mainte na nce and necessary repairs. Yo ur
Safety first
dealer has the facilities, o rigina l parts and trained spec ia lists to keep
your vehi cle runni ng properly.
Performing limited maintenance yourself
The foll ow ing page s descr ibe a lim ite d num ber of proced ures whi ch
can be perfo rmed on your vehicle w it h ordina ry tools, shou ld the need
ar ise and tr ained pe rsonnel be u navailabl e. Befo re pe rforming any of
t hese p rocedures, always t horoughly read all of the applicable text
and ca ref ull y follow the ins tru ction s given . Alw ays rigoro usly o bserve
t he
WARNINGS prov ided .
Before you check anything in the engine compartment, always read
and heed all WARNINGS=>
& and=> & in "W orking in the engine
compartment" on
page 301.
& WARNING
• Serious personal injury may occur as a result of improperly
performed maintenance, adjustments or repairs.
• Always be extremely careful when working on the vehicle.
Always follow commonly accepted safety practices and general
common sense . Never risk personal injury .
• Do not attempt any of the maintenance, checks or repairs
described on the following pages if you are not fully familiar with
these or other procedures with respect to the vehicle, or are uncer­
tain how to proceed.
• Do not do any work without the proper tools and equipment .
Have the necessary work done by your authorized Audi dealer or
another properly equipped and qualified workshop .
• The engine compartment of any motor vehicle is a potentially
hazardous area. Never reach into the area around or touch the
radiator fan. It is temperature controlled and can switch on
suddenly -even when the engine is off and the ignition key has
been removed. The radiator fan switches on automatically when
the coolant reaches a certain temperature and will continue to run until the coolant temperature drops. ..
Do-it,yourself service Technical data

-Alphabetical inde x _ ___,_ ______ .::..:....=.:..:..__ __________________________ _
Dimensions ... ............ ....... .. 364 Duplicate key .. .. .. ..... ..... ... .. .. 42
Dipstick Dust filter
Reading the dipstick properly ......
305 Climate controls ................. 111
Distance control system
See Adaptive Cruise Control ........ 136 E
Doors
Power child safety lock .............
54 Easy entry feature ............ ..... . 126
Eff . Driver information system ......... .... 22 iCJency program ......... .... .. .. .. 28
Digital speedometer ............... 24 Fuel economy messages ............ 29
Driver information messages ........ 32 Memory levels . ....... .. .. .. .. .. .. 27
Open door or rear lid warning ....... 24 Other equipment ...... .. ....... .. 29
Outside temperature display ..... ... 23 Electric seat adjustment
Sound system display .. .. ..... .....
23 See Power seat ............ ... .. .. 86
Drive r seat Electronic differential lock (EDL)
See Seating position .............. 192 How the system works ............ 258
Driver's seat .... .. .. .. .. .. .......... 86 Warning/indicator l ights ... .. .... .. 19
Driver's seat memory .............. ... 89 Electronic immobilizer .............. .. 45
Activating remote control key .... ...
90 Electronic power control
Recalling a seat position ............
89 (EPC) warn ing/indicator light ........ 16
Storing a seat position ... ..... ..... 89 Electronic speed limiter ............... 30
Driving messages .................... 32 Electronic stabilization program (ESP)
Driving mode
See Adaptive Air Suspens ion . .... .. 180
Driving offroad
Driving through water .... .. ... ...
271
Dr iving tips .. ............ .... ... 270
H ill descent contro l ....... .. .. .. . 256
How the system works .......... .. 256
Offroad mode ................... 256
Warning/indicator l ights .. . .. .... .. 16
Emergency flasher ............. .... .. 70
Rules of behavior ........ .... .... 270 Wa rning/indicator l ights . .. .. .... .. 17
Sand and mud ................. .. 271 Emergency locking of doors ... ... ... .. SO
Snow -covered g round .. .. .... .....
271 Emergency operation
Unpaved roads . .. .. .. .. .... .....
271 Panoramic sliding sunroof . ... 64, 65, 66
Driving safely . .. ..... ... ........... 190 Rear lid ............ .... . .. .... .. 54
Driving through water ... .. .. .. .... .. 271 Emergency starting .......... .. .. .. . 355
D. . t· riving 1me .... .... ...... .......... 26 Emergency towing ...... ... . ... .. .. . 358
Energy management ... ............ . 263
Battery power .............. ... .. 264
Driver notification ................ 264
Engine
Compartment ............. .... ..
302
Coolant . ........... ...... .. .. .. 308
Hood . .. ................. .... .. 300
Starting .. .. . ... .. .. .. .. .... 126, 127
Starting with jumper cables .. .. .. .. 355
Stopping ............ .... ... ... . 128
Engine compartment
s f . . a ety instructions .............. .
Working the engine compartment .. 301
301
Engine coolant system ............... 308
Adding coolant .............. .. .. 310
Checking coo lant level ............ 309
Checking the engine coolan t level ... 309
Malfunction .. ... . .. .... .......... 35
Radiator fan . ................... 311
Engine coolant temperature
Temperature gauge ....... ... .. .. .
10
Engine data .. ............ .... ... .. 365
Engine hood
Closing ......... .. ... . .. .. .... ..
301
How to release the hood .......... 300
Engine oil ............. .. ... ..... .. 303
Adding .............. .... ..... .. 306
Additives ................ ... .. .. 306
Changing ............. .... .... .. 307
Checking the engine oil level ....... 305
Consumption .... .. ... . .. .. .. .. .. 304
Indications and conditions requiring extra
checking ... .. .. .. .............
305

___________________________________________ A_ l::.. p _h _a_ b_ e_t _ic _a_ l_ in_ d _ e_x __ _
Oil grades ...... ....... ..... .. .. . 303
Recommended oil check intervals ... 305
Specification and viscosity ......... 303
Engine oil level ...................... 40
Engine oil pressure
Malfunction ........ .... .. .. .. .. .. 36
Engine oil sensor defective ............. 40
Engine speed limitation ............... 40
Entry assist
Rear seats ......... ...... .. .. .. .. 91
Environment Break-in period .. .. .............. 265
Catalytic converter . .. ... ... .. ..... 266
Diesel particulate filter ... .. .. .. .. . 267
Disposing of your vehicle battery ... . 316
Driving at high speeds .......... .. . 268
Driving to minimize pollution and noise . 267
Fuel ............... ...... .. .. .. . 294
Fuel economy ............... ..... 267
Leaks under your vehicle .......... . 301
Letting the vehicle stand and warm up ..
268
Proper disposal of drained brake fluid 312
Proper disposal of drained engine coolant 310
Proper disposal of drained engine oil 306,
307
Recycling used engine oil ......... . 306
Unleaded fuel ........... .... .... 291
What should I do with an old battery? ...
316
EPC
See Electronic power control ........ 16
Controls and equip­
ment Safety first
ESP
See Electronic
stabHization program (ESP)
16
Event Data Recorder (EDR) . ... ..... ... 256
Exhaust tai l pipes
Cleaning ...................... .. 285
Expansion tank .. ........... .. .. .. .. 309
Explanation of some technical terms ... 270
Exterior lighting in the mirror housing . .. 70
Eyeglasses compartment .... ......... 109
F
Fall line ...... ...... .... .. .. .. ..... 270
Fan Four -zone automatic comfort air
conditioning ................... 119
Radiator ................ .. ... ... 311
Fastening Booster seats ............ ...... .. 241
Convertible child safety seats ..... .. 239
Infant seats .. ................... 238
Filler flap ... .. .. .. ..... ... .... ... .. 298
Flat tire Changing . ... ................... 343
Floor mats ....................... .. 196
Fog lights ................. .. .. .. .. . 69
Folding chocks .. ... ....... ......... 340
Folding master key with remote control .. 42
Foot pedals ..... .. ................. 196
For the sake of the environment
Gasoline fumes an d the env ironment 294
Letting your engine warm up .. ..... 127 Reducing engine
noise by early upshifting
10
Refueling ... .. .. .. .............. 294
Saving fuel by early upshifting ....... 10
Using the rear window defogger .... 115
Four-zone automatic comfort air conditioning 118
Automatic mode in rear . .......... 119
Heated rear seats ...... ..... .. .. . 122
Rear air distribution ..... .. .. .. .. . 119
Rear controls ............ ... .. ... 118
Rear fan ............ .... ... ..... 119
Rear operation ...... ...... .. .. .. . 121
Reartemperature ............. .. . 119
Synchron ization .. .. ............. . 120
T urning on/off ................... 118
Front airbags Description .. .. .... ............. . 215
How they wo rk ...... ...... .. .. .. . 220
Front fog lights .......... .... .. .. .. .. 69
Front seats ......................... 85
Adjusting ....................... 193
Child restraints in the front seat ... . 213
Frontal collisions and the laws of physics 202
Fuel Additives ................ ...... . 291
Blended gasoline ................. 291
Consumption ........ . ... ... .. ... . 26
Filler neck . .. .. ... ... .. ...... .... 293
Fuel gauge .. .... .. .. .. ........... 12
Gasoline ........... .. .. .. .... .. . 291
Gasoline additives .. .............. 292
Low fuel leve l . . . . . . . . . . . . . . . . . 12, 39
Octane rating ....... .. .... .. .. ... 291
Vehicle operation Vehicle care Do-it-yourself service Technical data

_____________________________________________ A_ L .... p_ h _ a_b_ e_ t_ ic_a_ l_ in_ d_e _ x __ _
Pollen filter
Climate controls ......... ... ..... 111
Power locking switch ............ ... .. 49
Power locking system ................ . 46
Convenience close/open feature .. .. .. 60
Locking and unlocking the vehicle from
inside ...... ...... .. .. .. .. .... .. 49
Opening and closing the windows .... 60
Rear lid/trunk lid ......... ... ...... 51
Remote control key .......... ...... 43
Select ive unlock feature ........ .. .. 49
Sett ings ..................... .. .. 49
Unlocking and locking vehicle .... .. .. 47
Power outlets ............. .. .. .. .. . 106
Power seat Controls ... ................. ... .. 86
Seat adjustment ...... .... .. .. .. .. 86
Power steering .......... .. .. .. .... . 261
Power window switches .... .. ... ...... 58
In the driver 's door ....... .... ... .. 58
In the front passenger 's door ....... . 59
Reactivating the system ...... .. .. .. 61
Pregnant women Special considerations when wearing a safety belt .......... .. .. .. .... . 207
Programming the Homelink ® universal re-
mote control ................ ... 185
Proper occupant seating pos it ions . .. .. . 192
Proper safety belt position ....... .. .. . 206
Proper seating position
Front passenger .. .... .. .......... 193
Occupants ......... .. ... ..... ... 192
Rear passengers . ..... ........ .... 194
Controls and equip­
ment Safety first
Protective tray
... .. ..... .... ... ..... . 99
Q
Quartz clock ...... .................. 11
quattro ®
See All Wheel Drive ............... 262
Question What happens to unbelted occupants? ..
203
Why safety belts? ................ 201
R
Radiator fan .. .. .. ................. 311
Rain sensor ................. ..... ... 7 4
Rain sensor defective ............. ... . 38
Reading lights Front . ................. .. .. .. .. . 72
Rear .. .. .. .. ... ........ ...... .. . 72
Rear ashtray .. .. .. .... ... .......... 105
Rear fog lights .. .. ... ...... .. .. .. .. . 69
Rear lid Automatic operation ............ .. . 52
Emergency unlocking .. .. .......... 54
Opening and closing ............ ... 51
Valet key function ...... ... ........ 45
Rear light
Defective .... .. ... ............... 24
Rear ope ration
Four-zone automatic comfort air
condi tioning ................. .. 121 Rear park assist ...
....... ... ... .. .. . 170
Adjusting the display ....... .. .. ... 176
Adjusting the warning tones ........ 176
Trailer hitch . .. .. .. .. .. ... ..... .. 177
Rear seats Adjusting seat ...... ...... .. . ... .. 90
Entry assist ... .. .. ............... 91
Folding seatback up and down .. ... .. 92
Rear view camera
Parking mode 1 ................ .. 174
Parking mode 2 ................ .. 175
Rear view mirror
Inside rear view mirror . . . . . . . . . 79, 80
Rear window defogger ............. .. 115
Red symbols ........................ 33
Refue lling ... .... ........... .... .. . 294
Gasoline inhibitor flap ............. 294
Release lever for hood . ....... .. .. .. . 300
Remote control garage door opener
(Homelink ®) ........... ... .. ... 185
Remote control key ................... 43
Unlocking and locking .............. 47
Remote rear lid release ............... 51
Repair manuals ..... .... ... .. .. .. ... 368
Repairs Airbag system ................ ... 225
Replacing a fuse ......... .. .. .. .. .. . 350
Replacing light bulbs .. .. .. .......... 354
Replacing tires and wheels ............ 330
Report ing Safety Defects ............. 199
Reset button ...... . .. ............... 12
Residual heat .. .. .. .. .............. 112
Vehicle operation Vehicle care Do-it-yourself service Technical data