2014 AUDI Q7 radiator

26 6 Ch eck ing and filling
Coolant lo ss
Coolant loss may indicate a l ea k in t he cooling
system. In the event of coolant loss, the cool ­
ing system should be inspected immediately
by your authorized Audi dealer. It is not
enough merely to add coolant.
I n a
se ale d system, losses can occur only if
the boiling point of the coolant is exceeded as
a result of overheating.
A WARNING
The cooling system is under pressure and
can get very hot. Reduce the risk of scald­
ing 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 direction wh ile ap ­
plying light, downward pressure on the
top of the cap .
- To avoid being burned, do not spill ant i­
freeze or coolant on the exhaust system
or hot eng ine parts. Under certain condi­
t ions, the ethy lene g lycol in engine cool­
an t can ca tch f ire.
0 Note
Do not add any type of radiator leak seal­
ant to your vehicle's eng ine coolant. Add­
ing radiato r repair fluid may adve rsely af­
fect the function and performance of your
cooling system and could res ult in damage
not covered by your New Vehicle Limited
Warranty .
Adding coolant
Be very careful when adding engine coolant.
Before you check anything i n the engine com­
pa rtmen t,
a lwa ys rea d and h eed all WARN ­
INGS c:::> A in Working in the engine compart ­
ment on page 257.
.. Tu rn off the engine .
.. Let the engine cool down.
.. Place a thick rag over the coo lant expansion
tank
c> page 265 , fig. 245 and car efully
twist the cap counter-clockwise c> ,&. .
.. Add coo lant m ixed in the correct rat io
c:::> page 264, Coolant.
.. Twist the cap on again tightly.
Replacement engine coolant must conform to
exact spec ificat ions
c> page 264, Coolant.
We recommend using only coo lant additive
G12 ++, G13 or in an emergency G12 +. Do
not
use a different add itive. In an emergency use
plain water until you can get the correct addi­
t ive and can restore the correct ratio . This
shou ld be done as soon as poss ib le.
If you have lost a considerable amount of
coolant, then you should add cold ant ifreeze
and co ld water only when the eng ine is cold .
Always use
new engine coolant when refilling.
Do not fi ll coolant above the "MAX" mark. Ex­
cess coolant will be forc ed out through the
pressure relief valve in the cap when the en­
gine becomes hot.
A 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 coo l
down.
- Protect your face, hands and arms from
escaping fluid and steam by covering
the cap with a large, th ick rag.
- Turn the cap s low ly 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 an­
tifreeze or coolant on the exhaust sys­
tem or hot engine parts. Under certain
cond it ions, the ethylene g lycol in en ­
gine coolant can catch fire .

-Antifreeze is poisonous . Always store an­
t ifreeze in its or iginal container and well
out of the reach of children.
- If you drain the coolant, it must be
caught and safely stored in a proper con­
tainer clearly marked "poison".
(D Note
- Coolant pollutes the environment and
could cause an engine fire. Excess coo l­
ant will be forced out through the pres­
sure re lief va lve in the cap when the en­
gine becomes hot.
- If, in an emergency, only water can be
added, the correct ratio between water
and antifreeze ¢
page 264 must be re­
stored as soon as possib le.
@ For the sake of the environment
Drained coolant should not be reused. Al­
ways dispose of used coolant while observ­ ing all environmental regulations .
Radiator fan
The radiator fan switches on automatically by
itself
The radiator fan is driven by the engine via the
V-belt . The viscous clutch regulates the speed
of the fan accord ing to the temperature of the
coolant .
An auxiliary electric radiator fan* switches on
and off depending on coolant temperature
and other vehicle operating conditions .
After you switch the engine off, the auxilia ry
fan can continue running for up to 10 minutes
- even with the ignition off. It can even switch
on again later by itself¢& , if
- the temperature of the engine coolant rises due to the heat build-up from the engine in
the engine compartment, or
- the engine compartment hea ts up because
the vehicle is parked in intense sunlight .
Checking and fillin g 267
A WARNING
-To reduce the risk of personal injury nev­
er touch the rad iator fan.
- The auxiliary electric fan is temperature
controlled and can switch on suddenly
even when the engine is not running .
- The auxiliary radiator fan switches on au­
tomatically when the engine coolant reaches a certain temperature and will
continue to run until the coo lant temper­
ature drops.
Brake fluid
Checking brake fluid level
The brak e fluid lev el can be check ed with a
quick glance.
N
N
-N ,.
:8
Fi g. 246 En gin e compa rtm en t: cover o n the bra ke fluid
reservoir
Before you check anything in the eng ine com­
partment ,
always read and heed all WARN­
INGS ¢ A in Working in the engine compart­
ment on page 257.
.,. Read the brake fluid level from the brake
fluid reservoir ¢
fig. 246, ¢ page 259,
fig. 241.
The brake fluid level must be be­
tween the "MIN" and "MAX" markings .
The brake fluid reservoir is located at the rear
partition of the eng ine compartment on the
left side ¢
page 259.
The fluid level may drop slightly after some
time due to the automatic adjustment of the
brake pads. This is not cause for alarm. ..,_

Doors
Power child saf ety lock . ... .. .. .. .. ..
48
Dr iver information system ... .. .. .. .. .. 2 1
Di gita l speedomete r ...... .. .. .. .. .. 22
D river info rmation messages . . . . . . . . . 30
Open door or rear lid warning . . . . . . . . . 22
Outside temperature display . ... .. .. .. 22
Sound system display .. ... .. .. .. .. .. 2 1
D river seat
refer to Seat ing pos it ion ... .. .. .. .. . 165
Driver's seat . . . . . . . . . . . . . . . . . . . . . . . . 73
Driver's seat memory . . . . . . . . . . . . . . . . . 7 4
Activating remote control key . .. .. .. ..
75
Recall ing a seat posit ion . . . . . . . . . . . . . 7 4
Sto ring a seat position . . . . . . . . . . . . . . . 7 4
D riving messages . . . . . . . . . . . . . . . . . . . . 30
Driving mode
refer to Adaptive Air Suspe nsion . 155, 1 57
Driving offroad
Driving through water ......... ... .. 238
Driving tips .... ........... ... ... ..
237
Rule s of behav io r ............ .. .... 23 7
S and and m ud ........... .... .. .. . 238
Snow-covered groun d ..... .. .. .. .. .
238
Unpaved roads ........... .... .. ... 238
Dr iving safe ly .......... ...... .... ..
164
Driving through water ... ... .. .. .. .. . 238
D riving t ime . . . . . . . . . . . . . . . . . . . . . . . .
24
Duplicate key . . . . . . . . . . . . . . . . . . . . . . . 38
D ust filter
Climate controls . . . . . . . . . . . . . . . . . . . .
92
E
E asy en try featu re .. ..... ... .. .. .. .. . 104
Efficiency program . . . . . . . . . . . . . . . . . . . 26
Fue l economy messages . ...... ... ... 27
M emory levels . . . . . . . . . . . . . . . . . . . . . 25
Othe r equipmen t ......... .. .. .. .. .. 2 7
Electric seat adjustment
refer to Power seat . . . . . . . . . . . . . . . . . 73
Electro nic differential lock (EDL) . ... .. . 224
Warn ing/ indicator lights . . . . . . . . . 16, 18
Ele ctr onic immobili ze r ...... .. .. .. .. .. 40
Electronic power co ntrol
( E PC) wa rn ing/indicator light ... ... ...
15
Electronic speed limiter . . . . . . . . . . . . . . . 28
Inde x 325
Electronic Stabilization Cont ro l (E SC) ... 224
Hill descent contro l ..... .... ... .. .. 225 •
Offroad mode .. .. .. . .. ... .... ... .. 225 •
Warning/ind icator lights .......... .. . 16
Emerge ncy flashe r . . . . . . . . . . . . . . . . . . . 60
Wa rning/ind icator lights ..... ... .. .. . 16
Emergency locking of doors ............ 45
Emergency operation
Rear lid . .. .. .. .. .. ............... .
48
Emergency starting . .. .. ..... ... .. .. 3 0 7
Emerge ncy towing ... . .. .. .. ... ... .. 309
Energy management ... .. .... ... .. .. 229
Battery power . .. .... ........... .. 230
Driver notification ................. 230
Engine
Compartment .... .. . .. .. ..... ... ..
259
Coolant ... .. .... .. . .. .. ..... ... .. 264
Data ..... .. .. .. ... ............ .. 315
Hood ..... .. .. .. ................. 257
Start ing . . . . . . . . . . . . . . . . . . . . 105, 106
Starting with jumpe r cables ........ . 307
Stopping ........ .. ............... 106
Engine compartment
Safety instr uctions .. ........... .... 257
Work ing the eng ine compartment .. ..
257
Engine coolant system . .. ..... ... .. .. 264
Adding coo lant ..... . .. .. ..... ... .. 266
Checking coolant level .............. 265
Checking the engine coolant level ... .. 265
Malfunction . . . . . . . . . . . . . . . . . . . . . . . 32
Radiator fan ..... .. ............... 267
Engine coolant temperature
Temperat ure gauge ............ .... .
10
Engine hood
Closing ... .. .... .. . .. .. ..... ... ..
2 57
How to re lease the hood ..... ... .. .. 257
Engine o il ..... ... .. ............... 259
Adding ... .. .. .. ............... .. 263
Addi tives .... .. ...... ........... ..
2 63
Changi ng ... .. .... .. ... ..... ... .. 263
Checking the engine oil leve l .. ... .. ..
262
Consumption . ..... . .. .. ..... ... .. 261
Ind ications and conditions requir ing ex-
tra checking . .. .. ............... ..
262
Oil grades . .. .. .. ................. 259
Recommended oil check intervals . .. .. 262
Spec ificat io n and viscosity .......... . 259

326 Index
Engine oil level .... ..... ... .. .. .... .. 36 Fan
Eng ine oil pressure
M alfunct io n ............. .... .... .. 33
Eng ine oil sensor defective .... .. .... .. 36
E ngine speed limitation ... .. .. ... ... .. 36
Entry assist Rear seats . . . . . . . . . . . . . . . . . . . . . . . . . 76
Environment Break- in period ........... .... .... . 232
Cata lytic converter ......... ... .. ... 233
D iesel part iculate filter .. .. .. .. .. .. . 233
Disposing of your vehicle batte ry ..... 272
Dr iving a t high speeds ... .. .. .. .. .. . 234
Dr iving to m inim ize pollution and no ise 234
Fu el ... .. .. .. . .. ..... ... .. .. .... . 252
Fu el economy .. .. ..... ... .. .. .... . 234
Leaks under your vehicle ... .. ... ... . 257
Lett ing the vehicle stand and warm up . 235
Proper disposal of drained brake fluid . 268
Proper disposal of drained engine coo l-
ant ..... .. ................ ... ... 266
P roper disposal of dra ined engine oil .. 263
Recycl ing used engine oil . ...... .. .. . 263
Unleaded fuel ............. ...... .. 249
What should I do with an old ba ttery? 27 2
EPC
refer to Electron ic power control .. .. . . 1 5
E SC
refer to Electronic Stab iliza tion Control
(ESC) .. .. ................. .. .... .. 16
E vent Data Reco rder ( EDR) ... .. ... ... . 224
Exhaust tail p ipes
C leaning ................ .. .. .... . 246
Expansion tank .............. .. .... . 265
E xplanation of some technical terms . .. 23 7
Exterio r lighting in the mirror housing 59
Exterior mirrors
Ad justing ............... .... .... .. 68
Dimming . .. ............. .. .. .. ... . 69
H eating .. .. ... .... ...... ... ... .. .. 68
Eyeg lasses compartment . ... .. .... .. . . 90
F
Fa ll li ne . .. ... ............ .... .. .. . 23 7 Fo
ur-zone automatic comfort air condi-
t ion ing ... .. .. .. ... .. ..... ... .. .. . 99
Radiator .. .... .. ............. .... 267
F astening
Booster seats .... .. ... ..... ... .. .. 212
Convertib le child safety seats . .... . .. 211
Infant seats ..... ... .. ..... ... .. .. 210
Flat tire
Changi ng ... .. . .. ............ .. .. 29 7
Floor mats ...... ................... 169
Fog lights . ..... .. .. ... ..... ... .. .. . 58
Fold ing chocks .. . .. ............ .. .. 294
Folding master key with remote control .. 38
F oot peda ls ..... .. .. ... ..... ... .. .. 169
For the sake of the environment Gasoli ne fumes and the env ironme nt .. 252
Letting your eng ine warm up ........ 106
Red ucing engine noise by early upshift-
ing .. ... .. .... .. .. ... .. ..... ... .. . 10
R ef ueling ..... .. ... .. ..... ... .. .. 252
Sav ing fu el by early upshifting ... .. .. . 10
Using the rear window defogger .. .... . 96
F o ur -z o ne autom atic com fort air condi-
tioning ... .. .... .. ... .. .. ..... ... .. . 98
Automatic mode in rear . ..... ... .. .. . 99
Heated rear seats ... ... ..... ... .. .. 102
Rear air distrib ution . . . . . . . . . . . . . . . . 100
Rear controls ...................... 98
Rea r fan .. .. ... . ... ... .... ... .. .. . 99
Rear operation . .. ................ . 101
Rea r temperature . . . . . . . . . . . . . . . . . . . 99
Sy nchr onization ............... .... 101
T urning on/off . .. ............. .... . 99
Front a irbags
Description ...... ................ . 187
How they wor k ... .. ... ....... ... .. 192
Frontal coll is ions and the laws of phys ics 175
F ron t fog lights . . . . . . . . . . . . . . . . . . . . . . 58
Front seats . . . . . . . . . . . . . . . . . . . . . . . . . 72
Adjusting ..... ............ ....... 166
Child rest raints in the front seat ...... 185
Fuel Additives .. .... .. ............. .... 249
B lended gasoline ... ... ....... ... .. 249
Cons umption .. .. ................ .. 24
Filler neck ..... .................. . 251

330 Index
Parking systems ..... ...... .. .. .... . 143
Adjusting the disp lay/warning tone . .. 153
Audi parking system plus with front- and
rearv iew camera . . . . . . . . . . . . . . . . . . . 148
Audi parking system plus with rearv iew
camera .. .. ................ ... ... 144
C lean ing sensors/camera lenses ... .. . 245
M alfunct io n . . . . . . . . . . . . . . . . . . . . . . 153
Rear pa rk ass ist ........ .. .. .. .. .. . 144
Safety prec autions . . . . . . . . . . . . . . . . . 145
Trailer hitch . ... ...... ... .. .. .... . 153
Part icle fi lter
refer to Diesel part iculate filte r ... .... 36
Parts replacement .................. 318
PASSENG ER AIR BAG O FF ligh t ... .... . 194
Passenger's seat ............... .. .... 73
Passive safety system .. ... .. .. ... ... . 164
Pedals .. .. .... ........... .... .... . 169
Perimeter light ing ................... 59
P hys ica l pr inciples of a frontal coll is ion 175
Plastic parts Cleaning . .. ..... ........... ... .. . 246
Polishing . . . . . . . . . . . . . . . . . . . . . . . . . . 246
P ollen filte r
Climate controls . . . . . . . . . . . . . . . . . . . . 92
Powe r locking switch . . . . . . . . . . . . . . . . . 44
Power locking system ................. 41
Conven ience close/open feature ... .... 53
Lock ing and unlocking the vehicle from
ins ide ... ................. ...... .. 44
Opening and clos ing the w indows ...... 53
Rear lid/t runk lid ................... 45
Remote cont rol key ................ . 38
Selec tive unlock fea ture ... .. .. .... .. 44
Settings ... ... . ...... ... .. .. .... .. 44
Unlock ing and locking veh icle ..... .. . . 43
Powe r outlets 88
Power seat
Con trols . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Seat adjustment . . . . . . . . . . . . . . . . . . . . 73
Power steering .. .. ..... ... .. .. .... . 228
Powe r window swi tc h es ..... .. .. .. .. . . 5 1
I n the d river 's door ................. 52
I n t he front passenger's door . . . . . . . . . 53
Reactivating the system . . . . . . . . . . . . . 54 Pregnant women
Special considerations when wearing a
safety belt . . . . . . . . . . . . . . . . . . . . . . . 179
Proper o ccu pan t se ating positions . .. .. 165
Proper safety belt position . . . . . . . . . . . . 179
Proper seating position Front passenger .. .. ... ..... ... .. .. 166
Occ upants . .... .. ............. .... 165
Rear passengers .. ............. .. .. 167
Protecting . . . . . . . . . . . . . . . . . . . . . . . . . 24 6
Protective tray . . . . . . . . . . . . . . . . . . . . . . . 83
Q
quattro
refer to All -whee l drive
Question What happens to unbelted occupants?
Why safety belts? ... .......... .. . .
R
228
176
174
Radiator fan .... .. ... .. ..... .... . .. 267
Rain sensor . . . . . . . . . . . . . . . . . . . . . . . . . 63
Rain sensor defective .............. .. . 35
Reading ligh ts
Front ... .. .... .. .. .... . ..... ... .. . 61
Rea r . .. .. .... .. .. ... .. ..... ... .. . 61
Rea r asht ray ...... ............... .. . 87
Rear fog lights ...................... 59
Rea r lid
Automatic operation . . . . . . . . . . . . . . . . 46
Emergency unlocking ........... .... . 48
Open ing and closing ........... .. .. . 45
Valet key function ............. .... . 41
Rea r light
Defective . . . . . . . . . . . . . . . . . . . . . . . . . 23
Rea r ope ration
Fo ur-z one automatic comfort air condi-
t io ni ng ..... .. .. .. ........... .... 101
Rea r seats
Adjust ing seat ... .. ... ....... ... .. . 76
E nt ry assist . . . . . . . . . . . . . . . . . . . . . . . . 76
Folding seatba ck up and down ..... .. . 77
Rearv iew camera
refer to Park ing systems ............ 144
Rea r view m irror ... .. .... .... ... .. .. . 69
Rea r window de fogger ........... .. .. . 96