2013 AUDI Q7 heating

Catalytic converter
Applies to vehicles: with gasoline engine
It is very important that your emission con­trol system (catalytic converter) is function­
ing properly to ensure that your vehicle is run­
ning in an environmentally sound manner .
... Always use lead-free gasoline¢ page 256,
Gasoline .
... Never run the tank down all the way to
empty .
... Never put too much motor oil in your en-
gine
¢ page 270, Adding engine oil~-
.,. Never try to push- or tow-start your veh icle.
The catalytic converter is an eff icient "clean­
up" device built into the exhaust system of
the vehicle. The catalytic converter burns
many of the poll utants in the exhaust gas be ­
fore they are released into the atmosphe re.
The exclusive use of unleaded fuel is cr it ically
i mportant for the life of the cata lytic convert­
e r and proper fu nctioning of the engine.
A WARNING ,~
- Do not park or operate the veh icle in
areas where the hot exhaust system may
come in contact with dry grass, brush,
fuel spill or other material which can
cause a fire.
- Do not apply additional undercoating or
rustproofing on or near the exhaust
man ifold, exhaust p ipes, catalytic con­
verter or heat shie lds . During driving, the
substance used for undercoating could
overheat and cause a fire.
{[) Note
-Be aware that just one tank fi lling with
le aded fuel will already seriously de­
grade the performance of the catalytic
conve rter .
- Do not exceed the correct engine oil level
¢ page 270.
-Do not drive until the fuel tank becomes
completely empty. The eng ine could mis­
fire . U nburned fuel could a lso get into
Dri vin g and en vironm ent 235
the exhaust system and this cou ld cause
the catalytic converter to overheat .
- Do not turn off the igni tion while the ve ­
hicle is moving.
- Do not con tinue to ope rate your veh icle
unde r these conditions, as othe rwise fuel
can reach the catalytic converter. This
co uld result in overheating o f the con­
verter, requir ing its replacement.
- To assure efficient operation of the Emis ­
sion Control System:
- H ave your vehicle maintained prope rly
and in accordance w ith the se rv ice rec­
ommendat ions in you r Warranty &
M aintenance boo klet.
- L ack of prope r maintenance as we ll as
improper use of the vehi cle w il l impair
the function of the em ission contro l
system and could lead to damage .
@ For the sake of the environment
Even when the Emiss ion Control System is
operat ing properly, the exha ust gas can
have a sul fur -li ke exhaust gas smell under
some operating states . This depends on
the sulfur content of the fuel being used .
Using a different brand of fue l may help,
or f illing the tank with lead-free super
grade gasoline .
Diesel particulate filter
Applies to vehicles : with diese l eng ine
The diesel part iculate filter filters nearly all of
the soot particles out of the exhaust . The fil­
ter cleans itself automat ica lly under normal
driv ing cond itions . If the filter ca nnot clean it­
self (for example, because you a re o nly dr iving
short distances), the fi lter becomes clogged
with soot and the
II symbo l for the diesel
particu late filter ill uminates ¢
page 3 7.
A WARNING
- Do not park your vehicle over flammab le
materia ls such as grass or leaves because
the high temperature of the diesel par-
ticulate f ilter could start a fire. ..,. •
•

It takes a long time for the engine to warm up
fu lly when it is running at idle. However , wear
and nox ious em issions are especially high
when the engine is warming up. So you should drive away as soon as you start the engine and
avoid running at high rpms while the engine is
still warming up .
(D Note
Do not leave engine idling unattended af­
ter starting . If warning lights should come
on to indicate improper operation, they
wou ld go unheeded. Extended idling also
p roduces heat, which cou ld resu lt i n over­
heating or other damage to the vehicle or
other property.
Regular maintenance
A badly tuned engine unnecessarily wastes a lot of fuel.
"' Have your vehicle serv iced at regular inter-
vals.
By having your vehicle regularly serviced by an
author ized Audi dealer helps to ensure that it
r uns p roper ly and economically. The condition
of your vehicle not only affects its safety and
ab ility to hold its value, it also affects
fuel
c on sumption.
Ch eck your oil each time you fill your tank .
The amount of oil used is related to engine
load and speed .
It is normal for the oil consumption of a new
engine to reach its lowest v alue after a certain
mileage has been dr iven .
You must drive your vehicle about 3,000 miles (5,000 ki lometers) before you can properly
assess o il consumption .
This a lso applies to fuel consumption and en­
gin e output.
0 Note
- Have yo ur vehicle maintained properly
and in accordance wit h the service rec­
ommendations in your War ranty
& Main-
Dri vin g and en vironm ent 237
tenance book let. Lack of p roper mainte­
nance as well as improper use of the ve ­
hicle will impair the function of the
em ission contro l system and could lead
to damage.
- Do not alter or remove any component of the Emission Control System unless ap­proved by the manufacturer.
- Do not alter or remove any device, such as heat shie lds, switches, ign ition w ires,
valves, which are designed to protect
your vehicle's Emission Control System and other impo rtant vehicle compo­
nents.
Fewer short trips
Fuel consumption will always be relatively
high on short trips .
"' Try to avoid driv ing short distances w ith a
cold engine .
The eng ine and cataly tic converter have to
reach their opt imal
operat ing temperature t o
reduce fuel consumpt ion and nox ious em is­
s ions effect ively .
Just after starting, a co ld eng ine in a mid-s iz e
car only achieves a fuel economy of 6-8 mi les
per gallon (30 -40 l/l00km). After about a
half a mile , fuel economy cl imbs to 12 mpg
(20 l/100 km) . After about
2.5 miles (4 km),
t he engine is at i ts p rope r opera ting tempe ra­
tu re and f uel economy has reached a normal
l evel. So you can see that yo u should avo id
short trips whenever possible.
T he
out sid e t emperature is also cr itica l in th is
regard. Your car consumes more fue l in the
winter than in the s ummer.
•
•

Engine compartment
Be especially careful when cleaning the en­
gine compartment.
Al ways s witch off the ign ition befor e clean ­
ing the eng in e
c:> & .
Plenum panel
Remove leaves from the plenum pane l in front
of the windshield under the engine hood. This
prevents the water drain holes from becoming
blocked, and it prevents debris from entering
the vehicle interior through the heating and
ventilation ducts .
Corrosion protecti on
The engine compartment and transmission
have been corrosion-protected at the factory.
Good anti-corrosion treatment is very impor ­
tant, particular ly in the winter . If the vehicle
is frequent ly driven on salt treated roads, the
entire engine compartment and plenum panel
should be thoroughly cleaned at the end of
winter and retreated to prevent sa lt damage.
At the same time, the underside of the vehicle
should be washed as we ll.
If the engine compartment is cleaned at any
time with grease removing solut ions
1>, or if
you have the engine washed, the anti-corro­
sion treatment is a lmost always removed as
well.
It is therefore essential to have a long­
lasting co rrosion protection reapp lied to a ll
surfaces, seams, joints and components in the
engine compartment.
A WARNING
Be aware: The engine compa rtment of any
motor vehicle is a potentially hazardous
area.
- Before working in the engine compart­
ment, be s ure to read the in format ion
c:> page 264.
- Before reaching into the front plenum
pane l, always remove the ignition key.
l) Use only the correct cleaning sol utions. Never use gas­
oline or diesel fuel.
Cleaning and protec tion 255
Otherwise, the windshield wiper system
could un intentionally be switched on,
possibly caus ing personal injury from the
mov ing wiper linkage.
- Never reach into the area around or
touch the radiator fan. The aux iliary fan
is temperature controlled and can sw itch
on suddenly - even when the ignition is
off.
- Do not wash, wax or dry the eng ine with
the engine running. Moving or hot parts could injure you.
- Do not clean the underside of the chas­
sis, fenders, wheel covers, or other ha rd
to reach pa rts without protect ing your
hands and arms. You may cut yourself on
sharp-edged metal parts .
- Always read and heed all WARNINGS and
o ther info rmation
c:> page 245.
•
•

258 Fuel supply and filling your fuel tank
Winter operation
At temperatures below 20° F (-7° C), Diesel
fuel No.
2 loses its fluidity due to wax separa­
tion, which may clog the fuel filter or tank fil­
ter and keep the engine from running .
To help the filter from being clogged by wax,
the fue l filter in your vehicle is automatically
preheated. Preheating the fuel filter makes
operation of your vehicle possible with Diesel
fuel No. 2 down to -10° F (-24° C).
If you expect temperatures below
5° F
(-15° C)
ask your fuel dealer whether their
Diese l fuel No.
2 is sufficiently winterized for
the prevailing and expected temperatures.
If not winterized or insufficiently winterized
Diesel fuel has already thickened to the extent
that the engine will not start, warm the vehi­
cle up by leaving it in a heated garage.
It is normal that the engine noise leve l (die­
seling) is louder during the warm-up period in
winter. It is also norma l when whitish-blue
smoke comes out of the tailpipe after starting
and during warm-up . The amount of smoke
depends on the outs ide temperature.
Do not let your Diese l engine idle unnecessari ­
ly after a cold start. Driving off slowly will
shorten the warm-up period.
A WARNING
- Never use "starting assist fluids." They
may be potent ially explosive or cause a
"run-away" engine condition. This could
result in ser ious engine damage and per­
sonal injur y.
- Never use fuel line anti-freeze offered for
gasoline engines.
(D Note
- Your Diesel engine has been specifically designed to operate only on Ultra Low
Sulfur Diesel fuel. Therefore, never use
home heating oil or regular gasoline. The
properties of these fuels may cause seri­
ous damage to the fuel injection system
and to the engine. Using these fuels can
-
cause expensive engine repairs and will
also adversely affect your New Vehicle
Limited Warranty.
- If Diesel fuel sho uld get on any rubber
hose, it must be wiped off immediately.
Then wash the contaminated hose por­
tion with soap and warm water. Do not allow D iesel fuel to remain on connect­
ing hoses . They may develop leaks and
cause serious damage.
Fuel tank
Fuel filler neck
The fuel filler neck is located on the right rear
side panel behind the fuel filler flap.
If the power locking system shou ld fail, you
can still open the flap manua lly -for detailed
instructions see ¢
page 261.
You can find the fuel tank capacity of your ve­
hicle in
Technical Data ¢page 322 .
The label on the inside of the fuel filler flap
te lls you the correct fuel for your vehicle. For
more information about fuel specifications,
see ¢
page 256.
Your vehicle fuel tank has an on-board refuel­
ling vapo r recovery system. This feature helps
to prevent fue l vapors from escaping from the
tank and polluting the environment while you refuel your vehicle. In order to fi ll the tank
proper ly while protecting the environment,
please fo llow this refueling procedure careful­
ly.
A WARNING
-Under normal operating conditions, never
carry addit ional fuel conta iners in your car .
Gas canisters and other conta iners used to
transport fuel can be dangerous. Such con­
tainers, full or empty, may leak and could
cause a fire in a collision.
If you must
transport fuel to use for your lawn mower,
snow blower, etc., be very careful and al ­
ways observe loca l and state laws regard­
ing the use, transportation and storage of
such fuel containers. Make certain the ..,.

a reason to change the oil more often than recommended.
A WARNING
Stop! Before working in the engine com­
partme nt, always read and heed all WARN­
INGS
q & in Working in the engine com­
partment on page 264.
The engine com­
partme nt of any motor veh icle is a poten­
tially dangerous a rea and can cause ser i­
ous pe rsonal injury.
A WARNING
If you must change the engine o il i n your
vehicle:
- Always wea r eye p rotection.
- To reduce the r isk of burns from hot en-
gine oil let the engine cool down to the
t ouch.
- When removing the oil drain plug with
yo ur finge rs, stay as far away as possible.
Always kee p your forea rm pa ra llel to the
ground to he lp prevent ho t oi l from r un­
ning down your arm.
- Drain the o il into a co nt ainer designed
f or this p urpose, one large enough to
hold at least the total amount of oil in
yo ur engine .
- T o reduce the r is k of po ison ing, never use
empty food or beverage containers that
might mis lead someone into drinking
from them.
- Engine oil is poisono us. Keep it well out
of the reach of chi ldren.
- Cont in u ous contact with used engi ne oil
is harmful to your skin. Always protect
yo ur sk in by washing tho ro ughly with
soap and water.
(D Note
Never mix oi l addit ives with your engine
oil. These additives can damage your en ­
gine and adverse ly affect your Audi Limit­
ed New Vehicle Warranty.
-
Checkin g and fillin g 2 71
@) For the sake of the environment
-Before changing the oil, first make sure
you know where you can prope rly dispose
of the old o il.
- Always dispose of used oil p ro perly. Nev­
er dump it on garden soil, in wooded
areas, into streams or down sewage
dra ins.
- Recycle used o il by tak ing it to a used en ­
gine oil collection facility in your area, or
contact a service station.
- We strongly recommend that yo u have
your oil cha nged by an authorized Audi
dealer or a qualified wo rkshop with the
special tools a nd expert ise required, and
proper m eans of disposa l.
Engine cooling system
Coolant
The engine coolant performs two functions: it
keeps the engine from overheating and it pro­ tects the engine from freezing in the winter.
T he cooling sys tem is sealed and genera lly re­
quires little attention.
T he cooli ng system has bee n filled a t the fac­
t ory with a permanent coolant which does not
need to be c hanged . The coo lant cons ists of a
mixture of water and the manufacturer's gly ­
col-based coo lant additive G l3 antifreeze
with anticorrosion additives (50% for USA
models; 60% for Canadian mode ls). This m ix­
ture both assures the necessary frost protec­
tion and protects meta l compone nts in t he
engine's cool ing system from corros io n and
sca ling.
It also raises the boiling point of the
c oolant.
Do not reduce the concentration of the cool ­
ant in the s ummer by adding p lai n water .
The
proportion of coolant additive must be at
lea st 50 % but not more than 60 %
to main ­
tai n antifree ze pro te ct io n a nd coo ling eff icien­
cy .
If the coo lant fros t protection is too low,
the coo lant co uld freeze and damage the vehi-
cle heating and engine cooling system. .,..
•
•

Coolant loss
Coolant loss may indicate a leak in the 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.
In a
sealed 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 while ap­
plying light, downward pressure on the
top of the cap.
- To avoid being burned, do not spill anti­ freeze or coolant on the exhaust system
or hot engine parts. Under certain condi­
tions, the ethylene glycol in engine cool­
ant can catch fire.
(D Note
Do not add any type of radiator leak seal­
ant to your vehicle's engine coolant. Add­
ing radiator repair fluid may adversely af­
fect the function and performance of your
cooling system and could result in damage
not covered by your New Vehicle Limited
Warranty.
Adding coolant
Be very careful when adding engine coolant.
Before you check anything in the engine com­
partment,
always read and heed all WARN­
INGS c:;, A in Working in the engine compart­
ment on page 264.
Checking and filling 273
.. Turn off the engine .
.. Let the engine cool down.
.. Place a thick rag over the coolant expansion
tank
c:;, page 2 72, fig. 247 and carefully
twist the cap counter-clockwise c:;, &, .
.. Add coolant .
.. Twist the cap on again
tightly.
Replacement engine coolant must conform to
exact specificat ions
c:;, page 2 71, Coolant. We
recommend using only coolant additive G12+
+, G13 or in an emergency G12 +. Do
not use a
different additive. In an emergency use plain
water until you can get the correct additive
and can restore the correct ratio. This should
be done as soon as possible.
If you have lost a considerable amount of
coolant, then you should add cold antifreeze
and cold water only when the engine is cold.
Always use
new engine coolant when refilling .
Do not fill coolant above the "MAX" mark. Ex­
cess coolant will be forced 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 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 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
conditions, the ethylene glycol in en­
gine coolant can catch fire.
- Antifreeze is poisonous. Always store an­
tifreeze in its original container and well
out of the reach of children. .,.
•
•

• Secure the wheel with the large screw.
• Fold the cargo floor back down.
After using the inflatable spare wheel
The inflatable spare tire can be re-used as
long as it is not damaged and is not worn
down to the tread wear indicators~.&. .
When you let the air out of the inflatable
spare tire, it does not assume its folded shape
again for several hours. Until then, it cannot
be placed back in the spare wheel well and
stowed securely.
A WARNING
- Never use the spare tire if it is damaged
or if it is worn down to the tread wear in­
dicators.
- If the inflatable spare tire is more than 6
years old, use it only in an emergency
and with extreme caution and careful
driving .
- The inflatable spare tire is intended only
for temporary and short-term use .
It
should be replaced as soon as possible
with the normal wheel and tire.
- The tire pressure value for the inflatable
spare tire is located on the driver's side
B-pillar ~page284,
fig . 252.
-Maximum permissible speed is 50 mph
(80 km/h).
- Avoid full-throttle acceleration, heavy
braking, and fast cornering.
- When the air is let out of the inflatable
spare wheel, it does not assume its fold­
ed shape for several hours . Until then, it
cannot be placed back in the spare wheel
well and stowed securely.
- Never drive with more than one inflata­
ble spare tire.
- For technical reasons, the use of tire
chains on the inflatable spare tire is not
permitted. If it is necessary to drive with
tire chains, the inflatable spare wheel
must be mounted on the front axle in the
event of a flat in a rear tire. The newly
available front wheel must then be in­
stalled in place of the rear wheel with
What do I do now? 303
the flat tire. Installing the tire chain be­
fore mounting the wheel and tire is rec­
ommended.
- Loose items in the passenger compart­
ment can cause serious personal injury
during hard braking or in an accident.
Never store the inflatable spare tire or
jack and tools in the passenger compart­
ment.
(D Note
- The inflatable spare tire has been devel­
oped specifically for this vehicle model.
It must not be exchanged or used for
other vehicle models. Similarly, inflata­
ble tires from other vehicle models must
not be used.
- Normal summer or winter tires must not
be installed on the inflatable tire rim.
Inflating inflatable spare tire
• Remove the compressor from the luggage
compartment ~
page 302, fig. 261.
• Unscrew the valve stem from the spare tire.
• Screw the tire filler hose from the compres­
sor firmly onto the valve of the spare tire.
• Insert the plug from the compressor into an
outlet of the vehicle~
page 87.
• Switch the compressor on .
• Let the compressor run until the value
specified on the tire pressure label is
reached
~ page 284, fig. 252. Switch the
compressor off after running for 12 minutes
at the most -danger of overheating!
A WARNING
-
The compressor and the tire filler hose can
become extremely hot while they are run­
ning -danger of burns!
(D Note
Switch the compressor off after running
for 12 minutes at the most -danger of
overheating! Allow the compressor to cool
down for a few minutes before you use it
again .
•
•

Engine coolant system ............... 271
Adding coolant .............. ... ... 273
Checking coolant level ........ ... .. . 272
Checking the engine coolant level .. .. . 272
Malfunction ............. .... .. .... 32
Radiator fan ................ ... ... 274
Engine coolant temperature Temperature gauge .......... ... .. .. 10
Engine data .. .. ........... .. .. .. ... 322
Engine hood Closing .. ............ ...... .... .. 264
How to release the hood ...... .... .. 264
Engine oil . .. ............. .... .. ... 266
Adding .. .. .. ........... .. .. .. ... 270
Additives . .. ............. .... .. .. . 270
Changing .. ................ ... ... 270
Checking the engine oil level .. .. ... .. 269
Consumption . .. .. .... ... .. .. .. .. . 268
Indications and conditions requiring ex-
tra checking ............. .... .. .. . 269
Oil grades . ................. ... ... 266
Recommended oil check intervals . ... . 269
Specification and viscosity ... ... .. .. . 266
Engine oil level .................. .... 36
Engine oil pressure Malfunction ................ .... ... 33
Engine oil sensor defective ... ... .. .... 36
Engine speed limitation ....... .. .. .. .. 36
Entry assist Rear seats . . . . . . . . . . . . . . . . . . . . . . . . . 7 5
Environment Break-in period .............. ... ... 234
Catalytic converter ........ .. .. .. .. . 235
Diesel particulate filter .... .. .. .. .. . 235
Disposing of your vehicle battery .. .. . 279
Driving at high speeds .......... .... 236
Driving to minimize pollution and no ise 236
Fuel ... .. .. .. .. ........... .. .. ... 259
Fuel economy ............ .... .. ... 236
L eaks under your vehicle ... .. .. .. .. . 264
Letting the vehicle stand and warm up. 236
Proper disposal of drained brake fluid . 275
Proper disposal of drained engine cool-
ant . .... .. .. ............. .. .. ... 273
Proper disposal of drained engine oil . . 270
Recycling used engine oil ....... ... .. 270
Unleaded fuel ............... ... ... 256
What should I do with an old battery? . 279
Index 335
EPC
refer to Electronic power control . . . . . . 15
ESC
refer to Electronic Stabilization Control
(ESC) ..... .. .. .. ................. . 16
Event Data Recorder (EDR) . .......... . 225
Exhaust tail pipes Cleaning .. .. .. .. .... ............. 250
Expansion tank .. .. .... ........... .. 272
Explanation of some technical terms ... 238
Exterior lighting in the mirror housing 59
Exterior mirrors
Adjusting . . . . . . . . . . . . . . . . . . . . . . . . . 68
Dimming .. .... .. .. . ............... 69
Heating ..... .... .. ................ 68
Eyeglasses compartment .............. 89
F
Fall line
Fan
Four-zone automatic comfort air condi- 238
tioning ... .... .. .. . ............... 98
Radiator .... .. .... ............... 274
Fastening Booster seats .................... . 213
Convertible child safety seats ....... . 212
Infant seats 211
Flat tire
Changing ........................ 304
Floor mats . . . . . . . . . . . . . . . . . . . . . . . . . 170
Fog lights ... ... .. .. ................ 58
Folding chocks .. .. .... ......... .... 301
Folding master key with remote control . . 38
Foot pedals ......... ............... 170
For the sake of the environment Gasoline fumes and the environment .. 259
Letting your engine warm up ...... .. 106
Reducing engine noise by early upshift-
ing ........ ..... .. . ............... 10
Refueling ........................ 259
Saving fuel by early upshifting ..... .. . 10
Using the rear window defogger .. .. .. . 95
Four-zone automatic comfort air condi-
tioning ....... .. .... ................ 97
Automatic mode in rear ............ .. 98
Heated rear seats . . . . . . . . . . . . . . . . . . 101
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