2015 AUDI Q7 radiator

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-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 262 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 265
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.
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Fi g. 247 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 256.
.,. Read the brake fluid level from the brake
fluid reservoir ¢
fig. 247, ¢ page 258,
fig. 242.
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 258.
The fluid level may drop slightly after some
time due to t he automatic adjustment of the
brake pads. This is not cause for alarm. ..,_

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'SI: ,...., \!) 1.1'1 ,...., 1.1'1 ,....,
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 .. ... .. .. .. .. .. 21
D river seat
refer to Seat ing pos it ion ... .. .. .. .. . 164
Driver's seat ................. .... ... 75
Driver's seat memory . . . . . . . . . . . . . . . . . 76
Activating remote control key . . . . . . . . . 77
Recall ing a seat posit ion ... .. .. .. .. .. 76
Sto ring a seat position . . . . . . . . . . . . . . . 76
D riving messages . . . . . . . . . . . . . . . . . . . . 30
Driving mode
refer to Adaptive Air Suspe nsion. 157, 1 59
Driving offroad Driving through water ......... ... .. 236
Driving tips .... ........... ... ... .. 235
Rul es of behav io r ............ .. .... 235
S and and m ud ........... .... .. .. . 236
Snow-covered groun d ..... .. .. .. .. .
236
Unpaved roads ........... .... .. ... 23 6
Driving safe ly .......... ...... .... .. 163
Driving through water ... ... .. .. .. .. . 236
D riving t ime . . . . . . . . . . . . . . . . . . . . . . . . 24
Duplicate key . . . . . . . . . . . . . . . . . . . . . . . 38
D ust filter
Climate controls . . . . . . . . . . . . . . . . . . . . 94
E
Easy en try featu re .. ..... ... .. .. .. .. . 10 6
E fficiency program . . . . . . . . . . . . . . . . . . . 26
Fue l economy messages . ...... ... ... 27
M emory levels . . . . . . . . . . . . . . . . . . . . . 25
Othe r equipmen t ......... .. .. .. .. .. 2 7
Electric seat adjustment
refer to Power seat . . . . . . . . . . . . . . . . . 7 5
Electro nic differential lock (EDL) . ... .. . 223
Warn ing/ indicator lights . . . . . . . . . 16, 18
E le ctr onic immobili ze r ...... .. .. .. .. .. 40
Electronic power co ntrol
( E PC) wa rn ing/indicator light ... ... ... 15
Electronic speed limiter . . . . . . . . . . . . . . . 28
Inde x 335
Electronic Stabilization Cont ro l (E SC) ... 223
Hill descent contro l ..... .... ... .. .. 224
•
Offroad mode .. .. .. . .. ... .... ... .. 224 •
Warning/ind icator lights .......... .. . 16
E merge ncy flashe r . . . . . . . . . . . . . . . . . . . 63
Wa rning/ind icator lights ..... ... .. .. . 16
Emergency locking of doors ............ 45
Emergency operation Rear lid . .. .. .. .. .. ............... . 48
Emergency starting . .. .. ..... ... .. .. 317
Emerge ncy towing ... . .. .. .. ... ... .. 319
Energy management ... .. .... ... .. .. 228
Battery power . .. .... ........... .. 229
Driver notification ................. 229
Engine Compartment .... .. . .. .. ..... ... .. 258
Coolant ... .. .... .. . .. .. ..... ... .. 262
Data ..... .. .. .. ... ............ .. 325
Hood ..... .. .. .. ................. 256
Start ing . . . . . . . . . . . . . . . . . . . . 107, 108
Starting with jumpe r cables ........ . 317
Stopping ........ .. ............... 108
Engine compartment
Safety instr uctions .. ........... .... 256
Work ing the eng ine compartment .. .. 256
Engine coolant system . .. ..... ... .. .. 262
Adding coo lant ..... . .. .. ..... ... .. 264
Checking coolant level .............. 263
Checking the engine coolant level ... .. 263
Malfunction . . . . . . . . . . . . . . . . . . . . . . . 32
Radiator fan ..... .. ............... 265
E ngine coolant temperature
Temperat ure gauge ............ .... . 10
E ngine hood
Closing ... .. .... .. . .. .. ..... ... .. 2 56
How to re lease the hood ..... ... .. .. 256
Engine o il ..... ... .. ............... 258
Adding ... .. .. .. ............... .. 261
Addi tives .... .. ...... ........... .. 261
Chang ing ... .. .... .. ... ..... ... .. 261
Checking the engine oil leve l .. ... .. .. 260
Consumption . ..... . .. .. ..... ... .. 259
Ind ications and conditions requir ing ex-
tra checking . .. .. ............... .. 260
Oil grades . .. .. .. ................. 258
Recommended oil check intervals . .. .. 260
Spec ificat io n and viscosity .......... . 258

336 Index
Engine oil level ................ .... .. 36 Fan
Engine oil pressure
M alfunct ion .. ........... .... .... .. 33
Eng ine oil sensor defective .. .. .. .... .. 36
E ngine speed limitation ..... .. ... ... .. 36
Entry assist
Rear seats . . . . . . . . . . . . . . . . . . . . . . . . . 78
Environment Break- in period ........... .... .... . 230
Cata lytic converter ............ .. ... 231
D iesel particulate filter . ... .. .. .. .. . 231
Disposing of your vehicle battery .. .. . 270
Dr iving at high speeds ... .. .. .. .. .. . 232
Dr iving to minim ize pollution and noise 232
Fu el ... .. .. .. . .. ........ .. .. .... . 250
Fu el economy .. ........ .. .. .. .... . 232
Leaks under your vehicle ... .. ... ... . 256
Lett ing the vehicle stand and warm up . 233
Proper disposal of dra ined brake fluid . 266
Proper disposal of dra ined engine coo l-
ant ..... .. ................ ... ... 264
Proper disposal of dra ined engine oil .. 261
Recycling used engine oil ... .. .. .. .. . 261
Unleaded fuel ................ ..... 248
What should I do with an old battery? 270
EPC
refer to Electron ic power control .. .. . . 1 5
E SC
refer to E lectronic Stab ilizat ion Control
(ESC) .. .. ................. .. .... .. 16
E vent Data Recorder (EDR) ... .. ... ... . 223
Exhaust tail pipes Cleaning ................ .. .. .... . 244
Expansion tank ............ .. .. .... . 263
E xplanation of some technical terms ... 235
Exterior lighting in the mirror housing 62
Exterior m irrors
Ad justing ............... .... .... .. 70
Dimming . .. ............. .. .. .. ... . 71
H eating .. .. ... .. .. ... ... .. .. .. .. .. 70
Eyeg lasses compartment .......... .. . . 92
F
Fal l lin e ... ... ............ .... .. .. . 235 Four-zone
automatic comfort air condi-
t ion ing ... .. .. .. ... .......... .. .. 101
Radiator .. .... .. ............. .... 265
Fastening Booster seats . . . . . . . . . . . . . . . . . . . . . 211
Convertible child safety seats ...... .. 210
Infant seats ..... ... .......... .. .. 209
Flat tire
Changing . .. .. . .. ............ .. .. 307
Floor mats ...... .. .......... ...... . 168
Fog lights . ..... .. .. ........... .. .. . 61
Folding chocks .. . .. ............ .. .. 304
Folding master key with remote control .. 38
F oot pedals ..... .. .. ........... .. .. 168
For the sake of the environment
Gasoline fumes and the env ironment .. 250
Letting your eng ine warm up .... .. .. 108
Reducing engine noise by early upshift-
ing ............................... 10
Refueling ..... .. ... .......... .. .. 250
Sav ing f uel by early ups hifting ... .. .. . 10
Using the rear window defogger ...... . 98
Four -zon e automatic comfort air condi-
tioning ... .. .... .. ... .. .......... .. 100
Automatic mode in rear ............. 101
Heated rear seats ... ........... .. .. 104
Rear air distrib ution . . . . . . . . . . . . . . . . 102
Rear controls .. .. ............. .... 100
Rear fan .... ... . ... ... .... ... .. .. 101
Rear operation . .. ................ . 103
Rear temperature ...... ........... . 101
Synchronization ............... .... 103
T urning on/off . .. ............. .... 101
Front a irbags
Description ...... ................ . 186
How they work ... ... ... .... ..... .. 191
Frontal coll is ions and the laws of phys ics 17 4
F ron t fog lights .. .. ............. .. .. . 61
Front seats . . . . . . . . . . . . . . . . . . . . . . . . . 7 4
Adjusting ..... .. .......... ...... . 165
Child restraints in the front seat ...... 184
Fuel Additives ...... .. ............. .... 248
B len ded gaso line ...... .. ... ..... .. 248
Consumption .. .. ................ .. 24
Filler neck ..... .. ..... ........... . 250

34 0 Index
Parking systems ........ ... .. .. .... . 145
Adjusting the disp lay/warning tone . .. 155
Audi parking system plus with front- and
rearv iew camera . . . . . . . . . . . . . . . . . . . 150
Audi parking system plus with rearv iew
camera .. .. ................ ... ... 146
Cleaning sensors/camera lenses ... .. . 243
Malfunct ion . . . . . . . . . . . . . . . . . . . . . . 155
Rear pa rk ass ist ........ .. .. .. .. .. . 146
Safety precautions ........ .. .. .... . 147
Trailer hitch . ... ...... ... .. .. .... . 155
Part icle fi lter
refer to Diesel part iculate filter . .. .... 36
Parts replacement .................. 328
PASSENG ER AIR BAG OFF l ight . .. .... . 193
Passenger's seat ............... .. .... 75
Passive safety system .. ... .. .. ... ... . 163
Pedals .. .. .... ........... .... .... . 168
Perimeter light ing ................... 62
Physica l pr inciples of a frontal collision 174
Plastic parts Cleaning . .. ..... ........... ... .. . 244
Polishing . . . . . . . . . . . . . . . . . . . . . . . . . . 244
P ollen filte r
Climate controls . . . . . . . . . . . . . . . . . . . . 94
Power 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 90
Power seat
Con trols . . . . . . . . . . . . . . . . . . . . . . . . . . 7 5
Seat adjustment .............. .. .... 75
Power steering .. .. ..... ... .. .. .... . 226
Powe r window swi tches ..... .. .. .. .. . . 5 1
I n the driver '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 .. .. .. ... .. ..... ... .. .. 178
Proper occ upan t seating positions . .. .. 164
Proper safety belt position ............ 178
Proper seating position Front passenger .. .. ... ..... ... .. .. 165
Occ upants . .... .. ............. .... 164
Rear passengers .. ............. .. .. 166
Protecting . . . . . . . . . . . . . . . . . . . . . . . . . 24 4
Protective tray . . . . . . . . . . . . . . . . . . . . . . . 85
Q
quattro
refer to All -wheel drive
Question What happens to unbelted occupants?
Why safety belts? ... .......... .. . .
R
227
175
173
Radiator fan .... .. ... .. ..... .... . .. 265
Rain sensor . . . . . . . . . . . . . . . . . . . . . . . . . 66
Rain sensor defective .............. .. . 35
Reading lights Front ... .. .... .. .. .... . ..... ... .. . 64
Rea r . .. .. .... .. .. ... .. ..... ... .. . 64
Rea r asht ray .... ... .............. .. . 89
Rear fog lights ...................... 62
Rea r lid
Automatic operation . . . . . . . . . . . . . . . . 46
Emergency un locking ........... .... . 48
Open ing and closing ........... .. .. . 45
Valet key function ............. .... . 41
Rea r light
Defective . . . . . . . . . . . . . . . . . . . . . . . . . 23
Rea r operation
Fo ur-z one automatic comfort air condi-
t io ni ng ..... .. .. .. ........... .... 103
Rea r seats
Adjust ing seat ... .. ... ....... ... .. . 78
E nt ry assist . . . . . . . . . . . . . . . . . . . . . . . . 78
Folding seatba ck up and down ..... .. . 79
Rearv iew camera
refer to Park ing systems ............ 146
Rea r view m irror ... .. .... .... ... .. .. . 71
Rea r window de fogger ........... .. .. . 98