2012 AUDI Q7 coolant reservoir

-Apply the parking brake.
- Move selector lever to "P" (Park).
- Always let the engine cool down. Hot
components will burn skin on contact.
- To reduce the risk of being burned, never
open the hood if you see or hear steam
or coolant escaping from the engine
compartment. Wa it until no steam or
coolant can be seen or heard before care­
fully opening the hood.
- Keep children away from the engine com­
partment .
- Never spill fluids on hot engine compo­
nents. They can cause a fire.
- Never touch the radiator fan. The auxili­
ary electric fan is temperature controlled
and can switch on suddenly.
- Never open the coolant reservoir cap
when the engine is still warm. The cool­
ant system is pressurized and hot cool­
ant could spray out .
- Protect your face, hands and arm from
steam or hot engine coolant by placing a
thick rag over the cap when you open the
coolant reservoir .
- If work on the fuel system or the electri­
cal system is necessary:
- Always disconnect the battery.
- Never smoke or work near heaters or
open flames. Fluids in the engine com­
partment could start a fire.
- Keep an approved fire extinguisher im­
mediately available.
- To avoid electrical shock and personal in­
jury while the engine is running or being
started, never touch:
- Ignition cables
- Other components of the high voltage
electronic ignition system.
-If you must perform a check or repair
with the engine running:
- First, fully apply the parking brake,
move selector lever to "P" (Park).
Checking and filling 259
-Always use extreme caution to prevent
clothing, jewelry, or long hair from get­
ting caught in the radiator fan, V-belts
or other moving parts, or from contact­ ing hot parts . Tie back hair before
starting, and do not wear clothing that
will hang or droop into the engine.
- Minimize exposure to emission and
chemical hazards
9 .&, .
&_ WARNING
California Proposition 65 Warning:
- Engine exhaust, some of its constituents,
and certain vehicle components contain
or emit chemicals known to the State of
California to cause cancer and birth de­
fects and reproductive harm. In addition,
certain fluids contained in vehicles and
certain products of component wear con­
tain or emit chemicals known to the
State of California to cause cancer and birth defects or other reproductive harm.
- Battery posts, terminals and related ac­
cessories contain lead and lead com­
pounds, chemicals known to the State of
California to cause cancer and reproduc ­
tive harms. Wash hands after handling .
(D Note
When adding fluids, always make sure that
they are poured into the proper container
or filler opening, otherwise serious dam­
age to vehicle systems will occur.
@ For the sake of the environment
To detect leaks in time, inspect the vehicle
floor pan from underneath regularly. If
you see spots from oil or other vehicle flu­
ids, have your vehicle inspected by an au­
thorized Audi dealer. •
•

260 Checking and filling
Engine compartment
These are the most important items that you can check .
Fig. 229 Typical layout for containers, engine oil di pstick and engin e oil fille r cap
(D W indshield/head light washer
t . (
;R ) con ainer ,.... .............. .
@ Coolant expansion tank (-L) .. .
@ Engin e oi l filler cap ('t".:r.) . .. .. .
©
®
®
(j)
Eng ine oil dipstick (orange) . .. .
Brake fluid reservoir
((0)) ..... .
Power steering reservoir ... .. .
Jump start connector( +) under 273
266
264
263
268
224
a cover,( ·) with hex head screw 271,308
The pos ition of the engine o il fi lling hole and
the engine oil dipstick
r=;, fig. 229 (position ®
and @) can vary according to the type of en­
gine .
_&. WARNING
Before you check anything in the engine
compartment, always read and heed all
WARNINGS ¢.&.
in Working in the engine
c omportment on page 258.
-
Engine oil
Engine oil specifications
The engine oil used in your Audi needs the
right kind of oil.
The engine in your Audi is a sophist icated
powerplant that was built to exacting specifi­
cations. Th is engine needs the right kind of
engi ne oil that meets specifications regard ing
quality and v iscosity so that it can run
smooth ly and reliab ly. Choosing the right oil
and changing oil within the time and mileage
intervals printed in your vehicle's Warranty
&
Maintenance booklet matters a lot more to­
day tha n it did years ago . Audi has developed
a spec ia l quality standard for eng ine oil that
will help assure that your vehicle's engine w ill
get the lubr ication it needs for proper opera­
t ion .
Modern engine lubr ication has taken a quan ­
tum leap in the last few years. Many synthetic "'

268 Checking and filling
-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 cool-
ant will be forced out through the pres­
sure relief valve 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
c:::> page 265 must be re­
stored as soon as possible .
@ 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 aux iliary
fan can continue running for up to 10 minutes
- even with the ignition off. It can even switch
on again later by itself
c:::> &. , if
- the temperature of the engine coolant rises
due to the heat build-up from the engine in
t he engine compartment, or
- the engine compartment heats up because
the vehicle is parked in intense sunligh t.
_&. WARNING
- To reduce the risk of personal injury nev­
er touch the radiator 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 coolant temper­
ature drops.
Brake fluid
Checking brake fluid level
The brake fluid level can be checked with a
quick glance.
Fig. 234 E ngine compart men t: cove r on the brake fluid
reserv oir
Before you check anyth ing in the engine com­
partment,
always read and heed all WARN­
INGS c:::> _&. in Working in the engine compart­
ment on page 258.
.,. Read the brake fluid level from the brake
fluid reservoir
c:::> fig. 234, c:::> page 260,
fig.
229. The brake fluid level m ust be be­
tween the "MIN" and "MAX" markings.
The brake fluid reservoir is located at the rear
partition of the engine compartment on the
left side
c:::> page 260.
The fluid level may drop slightly after some
time due to the automatic adjustment of the
brake pads. This is not cause for alarm.
If the brake flu id level falls
considerably be­
low the
"MIN " mark, the brake warning/indi­
cator light ( U.S. models: -· Canadian
models :. ) w ill come on
c:::>page 19 and
c:::>page 32. Do not continue to operate the ve-
hicle. The compl ete brake system should be ..,.

330 Index
For the sake of the environment
Gasoline fumes and the environment .. 253
Lett ing your engine warm up ... .. .. . 106
Reducing engine noise by early upshift-
ing .. .. .. .... ............. .. .... .. 10
Refueling .. ................ ... ... 253
Saving fuel by early upshift ing .. .. .. . . 10
Using the rear window defogger . . . . . . . 95
Four- zone automatic comfort air cond i-
tioning .. .. .. ............... .. .... .. 97
Automatic mode in rear . . . . . . . . . . . . . . 98
H eated rear seats .. ....... .. .. .. .. . 10 1
Rear a ir distribution ........... .. .... 99
Rear controls . . . . . . . . . . . . . . . . . . . . . . 97
Rear fan . .. ............. .. .. .. .. .. 98
Rear operat ion . ... ...... ... .. .... . 100
Rear temperature . ..... ... .. .. .... .. 98
Synchronization .. ..... ... .. .. .... . 100
Turn ing on/off ..................... 98
F ront airbags
Descr ipt ion ............ .. .. .. .. .. . 183
How they work . .. ..... ... .. .. .... . 188
Fronta l co llisions and the laws of physics 17 1
Front fog lights . . . . . . . . . . . . . . . . . . . . . . 58
Fr ont seats . . . . . . . . . . . . . . . . . . . . . . . . . 71
Ad justing . .... .. ..... ... .. .. .... . 162
Child restraints in the front seat ..... . 181
Fue l
Addit ives . .... ........... .... .... . 250
Blended gasoline .................. 250
Consumption . . . . . . . . . . . . . . . . . . . . . . 24
F ill er neck . .... . ...... ... ... ..... . 252
F ue l gauge .. .. .. ..... ... .. .. .... .. 12
Gasoline . .. ............. .. .. .. ... 250
Gasoline additives .......... .. .... . 251
Low fuel level . . . . . . . . . . . . . . . . . . 12, 35
Octane rating ................. .... 250
Recommendation ... ...... .. .. .. .. . 250
Refue lling ..... ......... ... .. .. .. . 253
Reserve .. .... ........... .... .... .. 12
Tank capacity ............ .. .. .... . 316
Un locking the fuel f iller flap by hand .. 255
Fuel economy messages (eff iciency pro-
gram) . .. .. ... ....... ........ ..... .. 27
Fuse arrangement ......... .... .... . 303 G
Garage doo r opener ( Homelink ®) . . . . . . 156
Gas discha rge lamps ..... ....... ... .. 306
Gauges Engine coolant temperature . . . . . . . . . . 10
Fuel gauge . . . . . . . . . . . . . . . . . . . . . . . . 12
Speedometer .. .................... 12
T achometer . . . . . . . . . . . . . . . . . . . . . . . 11
T rip odometer . .. ................ .. 12
General illustration Instruments and controls ............. 8
General rules and driving tips ... .. .. .. 232
Before driving offroad .. ..... ... .. .. 232
Driving offroad ... .. .... .... ... .. .. 232
G lossary of tire and loading terminology 275
G love compartment .................. 88
Cooling box . . . . . . . . . . . . . . . . . . . . . . . . 88
Valet key funct ion ..... ....... ... .. . 41
G love compartment -emergency unlock-
ing ................................ 88
G low p lug system
Ind icator light ... .. ... ..... ... .. .. . 15
Gradient angle ..................... 232
Gross Vehicle Weight Rating (GVWR) ... 314
G ro u nd clearance 232
H
Headlights . .. .. .. ............. .. .. . 57
Adaptive light . . . . . . . . . . . . . . . . . . . . . . 59
Defec tive . . . . . . . . . . . . . . . . . . . . . . . . . 23
F ront fog lights . . . . . . . . . . . . . . . . . . . . 58
Headlight range control ... ... ... . .. . 36
Switching off .... ... .. ..... ... .. .. . 57
Switching on . . . . . . . . . . . . . . . . . . . . . . . 57
Washer system . . . . . . . . . . . . . . . . . . . . . 66
Xenon headlights ................. .. 57
Head light washer reservoir .. ... .. .. .. 273
Head restra ints .. .. ............. .... 163
Adjusting . . . . . . . . . . . . . . . . . . . . . . . . 163
Front se ats . . . . . . . . . . . . . . . . . . . . . . . . 76
Rear seats . . . . . . . . . . . . . . . . . . . . . . . . . 77
Heated Exterior mirrors . . . . . . . . . . . . . . . . . . . . 68
Fron t seats .. .. .. ... .......... .... 100
Rear seats . .. .. .. ............. .. .. 101

338 Index
What impairs driving safety? ... .. .... . 161
What should I do after chang ing a
wheel? .. .. .... .............. ...... 281
What should I do after replacing wheels? 281
Wheel bolts Torque ..... .............. ... .... . 291
Wheels ..... .................. ... . 274
Cast alloy . . . . . . . . . . . . . . . . . . . . . . . . 243
Check ing tire pressu re .............. 280
Cold tire inflation pressure .. ... .... . 278
General notes ............. ... .... . 274
Glossary of tire and loading termino lo-
gy .... .. .. .... ................. . 275
New tires and wheels . . . . . . . . . . . . . . . 285
Tires and vehicle load limits .. .. ..... 282
When must a safety belt be replaced? .. 173
When must the airbag system be inspect-
ed? ............................... 190
When should I adjust the tire pressures? 281
When should I check the tire pressures? . 281
Where are lower anchorages located? ... 213
Where can I find the tire pressures for my
car? .. .. .. ............... .. .. .... . 280
Why safety belts? . . . . . . . . . . . . . . 170, 171
W indows
C leaning . .. ................ ... ... 243
Conve nience close/open featu re . ...... 53
Defogging . . . . . . . . . . . . . . . . . . . . . . . . . 94
Defrosting . . . . . . . . . . . . . . . . . . . . . . . . 94
Rapid defrosting/defogging . ..... .... 96
W indshield washer fluid
L ow level ... ..... ........ .. .. .. .. .. 35
Windshield wipers Changing the rear wiper blade . . . . . . . . 67
Faulty ... .. ................ ... .... 37
Intermittent w iping ........ .... ..... 63
One-tap wiping ..................... 63
Ra in sensor ............ .. .. .. .. .. .. 63
Rear window wiper ........ .. .. .. .. .. 65
Service pos it ion . . . . . . . . . . . . . . . . . . . . 66
Washer reservoir .......... ... .... . 273
W inter operation
Battery .. .. ............. ........ . 269
Coolant system ................... 265
H eated front seats ......... ... .... . 100
Heated rear seats .......... ... .... . 101
Steering wheel heating ......... ... . 101 T
ires ......... .. .......... ... ... . 225
Windows ..... .. .. .............. . 243
Winter tires . .... .. ............. .... 289
All-wheel drive . .. ............. .... 289
Wiper blades Installing new wiper blades . . . . . . . . . . 66
also refer to Windsh ield w ipers 66, 67
X
Xenon-Lights .. .. .................. . 306
y
Yellow symbols .. .. .......... ..... .. . 34