2015 AUDI Q7 cooling

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Warm and cold 99
Air outlets
Air distribution determines the air flow to the individual vents .
Fig. 115 Instru ment pane l: a ir outle t loca tion s and a irfl ow d irection s
Air outlets @and @
~ Rotate the hor izonta l thumb wheel located
below the particular outlet to increase, re­
duce , or shut down the airflow from that
outlet.
~ T o adj ust the d irect ion of the airflow from
the outlet, move the tab i n the center of the
outlet in the desired di rect ion . The direction
of the air de livered from the vents can be
adjusted horizontally and vertically .
(D Air flows to windshield and to driver and
front passenger side windows
@ Air flows to driver/front passenger or to
the driver and front passenger s ide win­
dows
@ Air flows to driver/front passenger
© Air flow s to footwell
The air out lets are actuated either automati ­
cally or manually depend ing on the operating
mode selected.
@ Tips
When climate contro l is working, coo led
air will flow primarily from outlets @and
@ . To assure adequate cooling, o utlets @
and @ should never be completely closed.
Air outlets in the rear
Outl ets i n the cent er con sole
~ Rotate the thumbwheel located next to the
outlet to open or close it.
~ To ad just the direc tion of the airflow from
the outlet , move the tab in the center of the
outlet in the des ired direction . The d irection
of the a ir delivered from the v ents can be
adjusted hor izonta lly and ver tically .
Outlets in the door pill ars
~ Rotate the horizontal thumb whee l located
be low the outlet to open or close it .
~ To adjust the direction of the airflow from
the outlet, move the tab in the center of the
out let in the des ired direction. The d irect ion
of the a ir delivered from the vents ca n be
adjusted hor izonta lly and ver tica lly.
T he air outlets are actuated e ither automati­
ca lly or ma nua lly depending on the operat ing
mode selected . Heated o r unheated fresh air,
o r cooled air flows from the vents.
T he air outlets to heat the rear footwell a re lo-
cated under the fron t seats. ..,.

100 Warm and cold
@ Tips
If the climate control system is ope rating
in cooling mode, a ir flows primari ly from
the outlets in the center conso le and in the
door pillars. To achieve adequate cooling,
you should never close the outlets com­
pletely .
Using climate control economically
Using the climate controls prudently can help
save fuel.
When you use the air cond it ioner , engine pow­
er is reduced and fuel consumption increases.
To save fuel, you should use the air condition ­
er only when necessary . Also please note the
following points :
.,. To save fuel, turn off cooling mode by press­
ing the
I A/Cl button (indicator light goes
out) .
.,. In add it ion, if you open the w indow or the
Panoramic sliding sunroof* wh ile driving,
tu rn off cooling mode by press ing the
IA/C l
button (indicator light goes out).
.,. If the vehicle is extremely hot due to the
heat of the sun, briefly open doors and win­
dows.
@ For the sake of the environment
By reducing the amount of fue l you use,
you also reduce the amount of pollutants emitted into the air.
Rear Air Conditioning
Rear air conditioning - controls
Applies to veh icles: w ith four -zo ne automatic comfort ai r
condit io ning
This overview is to assist you in familiarizing
yourself with the rear air conditioning con­
trols.
....
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Fig. 116 Rea r air conditioning controls
The left display indicates the temperature se­
lected for the rear left passenger, the right
display indicates the temperature selected for
the rear right passenger . If the settings for
seat heating *, air distr ib ution or the air cond i­
tioning fan are changed, the relevant indica­
tor will appear briefly on the display .
Functions are set by rotating the control or
are switched on and off by tapping the but­
tons. The indicator light in the button illumi­
nates when the funct ion is active .
Button(s) Function
ION/OFFI Climate control on/off
¢ page 101
IAUTOI Automatic mode
¢page 101
Regulatoral B Temperature selection
¢page 101
Q] Seat heating*
<=:>page 104
~
Fan
c::> page 101
~
Air distribution
¢page 102
•> The regu lator is also used to set the fan speed , air dis-
tr ibut ion and seat heating.
II-

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Synchronizing rear air conditioning: By
pressing and holding the regulator on the rear
left side, the temperature sett ing of the rear
left side can be switched to the rear right side
and v ice versa. The new temperature is shown
in the display .
Turning on and off~
App lies to vehicles: with four-zone automatic comfort air
cond it ioning
Turning the climate control on
• Press the !ON/OFF I button, or
• Press the
!AU TO I button.
Turning the climate control off
• Press the !ON/O FF I button to switch the cli­
mate control off and to block the air supply
from the outside .
The air conditioner turns back on when you
press the
temperature regulator or one of the
buttons.
(D Tips
If the power child safety lock is on, the
rea r air conditioning control element will
not operate . In this case, dashes" ••• " wi ll
appear in the air conditioning control ele­
ment disp lay.
Automatic mode in rear~
Applies to vehicles: with four-zone automatic comfort air
conditioning
The automatic mode is the standard setting
for all seasons.
• Se lect temperature between 60 °F (+16 °C)
and
84 °F (+28 °().
• Press the
!AUTO I button.
Automatic operation ensures constant tem­ peratu res in the inter ior and dehumidifies the
air inside the vehicle. Ai r temperature, volume
and distribution are controlled automatically
to reach or maintain the desired interior tem ­
perature as quickly as possible. Fluctuations
in exterior temperature and the effects of
Warm and cold 101
temperature from the position of the sun a re
compensated for automatically .
T his operating mode works on ly in the adjust­
able temperature range, from
60 °F (+ 16 °()
to
84 °F ( +28 °C) . If a temperature below 60
°F (+ 16 °C) is se lected, LO appears in the dis­
play . At temperatures above
84 °F (+ 28 °(),
HI is displayed . At both extreme sett ings, cli­
mate control runs continuously at maximum
cooling or heating power . There is no temper­
ature regulat ion .
Setting rear temperature
Applies to vehicles: with four -zone automatic comfort air
conditioning
The temperature can be separately adjusted
for the rear left and right sides.
• Rotate the regulator to the left to reduce
the temperature, or to the right to increase
the temperature .
T he selected temperature appears on the cli­
mate control display.
Rear fan~
Applies to vehicles: with four-zon e automatic comfort air
conditioning
The automatically preset fan speed can be re­
duced or increased.
• Press the~ button .
• Rotate the regulator to the desired fan
speed .
The climate control system automatically reg­
ulates fan speed depending on inter ior tem ­
perature. You ca n adjust the volume of air pro­
duced by the fan to your own requirements .
(D Tips
It is possible that the fan speed may
change automatically. This occurs to en­
sure that the desired temperature setting
i s reached as quickly as possible.

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Weight Rating will also change the per­
formance and handling characteristics of
your vehicle, which could cause a crash result ing in serious injury or death .
- The Gross Vehicle Weight Rat ing for your
vehicle would be exceeded if your vehicle is simultaneously equipped with Panor ­
amic sliding sunroof; th ird-row seating;
trailer towing equipment (factory or
dealer-installed), and running boards
(dea ler-installed) . UNDER NO CIRCUM­
STANCES MAY ALL SUCH ITEMS BE IN­
STALLED ON THE SAME VEHICLE.
Operating instructions
MAX 6.9"
MAX175mm
E
1/1 E 1/1 ... a)
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Fig. 232 Perm itted ba ll posit ion of t he tra iler hitch
Trailer towing weights
W ith a factory-installed tra iler hitch, the
maximum permissible trailer we ight is 6,600
l bs (3,000 kg). The maximum permissible un­
braked trailer weight is 1,650 lbs (750 kg).
With an
aftermarket trailer hitch, the maxi­
mum permissible t railer we ight is 5,500 lbs
(2,500 kg). These specifications apply when
driving on roads having an incline of less than
12%.
Permissible tongue load
For best vehicle handling under these
changed cond itions, adjust the trailer load so
that the tongue load is at the maximum al­
l owable or slightly lower. You can get an ap­
prox imation of the tongue load with a bath­
room scale or you can measure the load at a
trucking company or weighing station .
With a
factory-installed tra iler hitch, the
maximum permissible load on the ball hitch
Trailer towing 239
may not exceed 660 lbs (300 kg). With an af­
termarket
trailer hitch, the maximum permis ­
s ib le load on the ba ll hitch may not exceed
550 lbs (250 kg).
It is recommended to use
the maximum permissible load.
Trailer load distribution
Be sure the load in the trailer is held secure ly
in place to prevent it from shifting forward,
backward or sideways.
Never allow a passenger to ride in a trailer
¢.& in Driving instructions on page 240.
Ball mount
The trailer hitch may only be used w ith suita­
ble ball mount and ball ¢
fig. 232. Installa­
t ion of the hitch ball must be carried out in ac­
cordance with the manufacturer's instruc­
tions. At the height dimension of 1.5 in
(38.5 mm) a tolerance of+/- 0.5 in (12 . 7 mm)
is perm issib le.
Engine cooling system
Towing a trailer makes the engine work hard­
er . It is important that the cooling system's
performance is up to the additional load .
Make sure that the cooling system has enough
fluid .
Tire pressure
When towing a tra iler, inflate the tires of your
vehicle to the cold tire pressure listed under
" Full load" on the tire pressure label. The tire
pressure label is located on the driver's side B­
pillar . Inf late trailer tires to trai ler and t ire
manufacturers' spec ificat ions .
Lights
The headlight settings sho uld be checked with
the trailer attached before driving
off . Check
to make sure both vehicle and trailer lights
are working properly .
Safety chains
Be sure trailer safety chains are properly con­
nected from the trailer to the hitch on the
ve­
hicle . Leave enough slack in the chains to per­
mit turning corners. When you install safety
Ill-
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Using the proper engine oil is important for
the functionality and service life of the en­
g ine. Your engine was factory -filled with a
h igh-quality oil which can usually be used
t h roughout the entire year.
Your Limited New Vehicle Warranty does not cover damage or ma lf u nctions due to
fa ilure to follow recommended mainte­
nance and use requirements as set forth in
the Audi Owner's Manual and Warranty
&
Ma intenance booklet .
- Use only a high quality eng ine oil that ex­
pressly complies w ith the Audi o il quality
sta ndard specified for your veh icle's e n­
gine . U sing any other oil can cause seri­
ous eng ine dam age.
- Do not m ix any l ubrica nts o r othe r addi­
tives into the eng ine oi l. Doing so can
ca use eng ine damage.
I f you need to add oil and there is no ne
availab le tha t mee ts the Audi o il qua lity
s t andard your engine requires, yo u may
add a tota l of no more than 0 .5 quart/ liter
of a high -quality "synthetic"oil t hat meets
the following specifications.
- Vehicles with gaso line engine: ACEA A3
or API S M with a viscosity grade of
SAE OW-30, SAE SW-30 or SA E SW-40.
- Vehicles with diesel engine: ACEA C3 o r
API CF with a v iscosity grade of
SAE OW-30 or SAE SW-30.
- Fo r more information abo ut engine oi l
that has been approved for your vehicle, p lease contact either your a uthori zed
Audi dealer or Audi Customer Relations
at 1 (800) 822 -2834 or visit our web site
at www.a udiusa.com or
www.aud ica nada .ca.
Eng ine oil consumption
To provide effect ive lub rication and cooling for
internal engine pa rts, all inte rnal combust ion
engines use some oil. Oil consumption varies
Checkin g and fillin g 259
from engine to engine and may change ove r
the life of the engine. Engines tend to use
more o il during the break-in period than they
do afterward, when o il cons umption has sta­
bili zed. Depending on the way the vehicle is
driven and the operati ng conditions, oil con ­
sumption can be up to 1 quart per 1,200
mil es(! lite r per 2,000 km) . Consumption
may be higher wi thin the fi rs t 3,000 m iles
(5,000 km) .
Un der normal cond itions, the rate of oil con­
sumption depends on o il quality as well as v is­
cosity, engine speed (rpm), outs ide tempera­
ture, road condi tions, the amount of oil d il u ­
t ion caused by condensed water or fue l resi­
due, and oxidation of the oi l. Oi l consump tion
may inc rease with engine wear over time, un ­
ti l replacement of worn engine parts may be ­
come necessary.
Beca use of all these variables, there is no
standard or "norma l" rate of o il cons umption .
We urge you to check the engine oil le vel at
regular intervals, p referably e very time you
fill the fuel tank, and always before a long
trip .
The oil p ressure wa rning light. is not an
indicato r of low engine oil le vel. If the wa rn ­
ing light does not go out after starting, or
flash es while dri ving (above 1500 rpm ), a
buzzer will sound . It indicates that the oil
pres sure is too low. Stop the engine immedi­
ately, che ck the engine oil level and add oil if
n ec ess ary. If the engine oil level i s normal,
but the light continues to flash , do not keep
driving or let the engine idle, as dam age may
occur .
If you believe yo ur engine uses too much o il,
we recommend that you consul t your author ­
ized Audi dea ler so that the ca use of yo ur con­
cern can be proper ly diagnosed . Keep in mind
that acc urate measurement of oil consump­
tion req uires great care and may take some
time . Your Audi dealer h as ins truc tions for
how to measure oil consumption accurately .
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26 2 Ch eck ing and filling
8_ WARNING
Stop! Before working in the engine com­
partment, always read and heed all WARN ­
INGS
~ .&. in Working in the engine com­
partment on page
256 . The engine com­
partment of any motor veh icle is a poten­
tially dangerous area and can cause ser i­
ous personal injury.
8_ WARNING ,,,__
If you must change the engine oil in your
vehicle:
- Always wea r eye protection .
- T o reduce the ris k of burns from hot en-
gine oil let the engine cool down to the
touch.
- Whe n removing the oil drain plug with
yo ur fingers, stay as far away as poss ible.
Always keep your forearm paralle l to the
ground to he lp prevent hot oil from run­
ning down your arm.
- Drain the oi l into a container designed
for this pu rpose, one large enough to
hold at least the total amount of oil in
your engine.
- To reduce the risk of poisoning, never use
empty food or beverage containers that
might m islead someone into dr ink ing
from them.
- Engine oil is poisonous. Keep it well out
of the reach of children.
- Cont inuous contact with used engine oil
is harmful to your skin. Always protect
your sk in by washing thoroughly with
soap and water .
(D Note
Never mix oil additives with your engine
oil. These additives can damage your en­
gine and adverse ly affect your Audi Limit­
ed New Vehicle Warranty.
@i For the sake of the environment
- Before changing the oil, first make sure
you know where you can properly dispose of the old oil.
-
.
- Always dispose of used oil p roperly. Nev ­
er dump it on garden soil, in wooded
areas, into st reams or down sewage
dra ins.
- Recycle used oi l by taking 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 changed by an authorized Audi
dealer or a qualified workshop with the
special tools and expert ise required, and
proper means of disposal.
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.
The cooling system has been fi lled at the fac­
tory with a permanent coolant which does not need to be changed. The coo lant cons ists of a
mixtu re of specially conditioned water and the
manufacturer's g lycol -basedcoo la nt add
i-
tive G l3 antifreeze with anticorrosion addi ­
tives (SO% for USA mode ls; 60% for Canadian
models). This mixture both assures the neces­
sary frost protection and protects metal com­
ponents in the eng ine's cooling system from
corros ion and scaling.
It also ra ises the bo il­
i ng po int of the coolant .
Do not reduce the concentration of the cool­
ant in the summer by adding p lain wate r. Th e
proportion of coo lant additiv e mu st be at
l e as t 50 °/4 but not m ore than 60°/4
to main­
ta in ant ifreeze protect io n and cooling eff ic ien­
c y.
If the coo lant fros t protection is too low,
the coolant could freeze and damage the vehi­
cle heating and engine cooling system.
For year- round driving, antifreeze is added at
t h e factory fo r temperatures down to:
- -31°F(-35°C)USA
- - 40 °F ( - 40 °C) Canada.

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If you must add coolant, use a mixture of wa­
ter and coolant additive. Mixing the coolant
addit ive with distilled water is recommended .
.&_ WARNING
Before you check anything in the engine
compartment, always read and heed all
WARNINGS
¢ .&. in Working in the engine
compartment on page 256 .
(D Note
-Before winter sets in, have the coolant
checked to see if the coolant additive in
your vehicle is suffic ient to meet the cli ­
mate cond itions . Th is is especially impor­
tant if you live in a region where the w in­
te r is extremely cold. If necessary, in­
crease the proport ion of coolant additive
to 60% .
- When adding coolan t addi tive to you r
cooling system , remember:
- We recommend using only coolant ad­ ditive G12 ++ or G13 for your vehicle.
This coo lant additive is available at au­
thorized Aud i dealers . Other types of
antifreeze can significantly reduce cor­
rosion protection . Th e resu lting co rro­
sion c an cause a loss of coo la nt and se­
r ious engine damage.
- Do not add a ny type of radiator leak sea l­
ant to your veh icle's engine coo lant.
Adding rad iator repair fluid may adverse ­
l y affect the function and performance of
your cooling system and could result in damage not covered by your New Vehicle Limited Warranty.
-
Checkin g and fillin g 263
Checking the engine coolant level
The engine coolant level can be checked with
a quick glance .
F ig . 2 4 6 En gin e compar tmen t: Coolant expan sio n ta nk
Befo re you check anyth ing in the eng ine com ­
partment,
alw ays r ead and he ed all WARN­
INGS ¢ A in Working in the engine comport­
ment on page 256 .
.,.. Park your vehicle on a level su rface.
.,.. Tu rn
off t he ignition .
.,.. Let the engine cool down.
.,.. Plac e a thick rag over the coolant expans ion
tank ¢
fig. 246, ¢ page 258, fig. 242 and
carefull y twist the cap counter-clockwise
¢_&. .
.,.. Read the engine coolant level in the open
coo lant expansion tank. W it h a co ld eng ine,
the coolant leve l should be between the
"min " and "max" markings. W hen the en­
gi ne is wa rm, the level may be slightly above
t he "max" marking.
T he location of the coo lant expansion tank
can be seen in the engi ne compa rtment illus­
trat ion
¢ page 258 .
To obtain an accu rate reading, the engine
must be switched off.
The expansion ta nk in your vehicle i s equ ipped
with an electric coolant level sensor .
When the coolant leve l is too low, the warning
light i n the Auto-Check System¢
page 32 will
blink unti l you add coolant and the level has
been restored to normal. Even though there is
an electric coo lant level senso r, we still rec­
ommend you check the coolant level from
t ime to t ime .

264 Check 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 io ns, the ethy lene g lycol in engine cool­
an t ca n 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 read and heed all WARN ­
INGS c:::> A in Working in the engine compart ­
ment on page 256.
.. Tu rn off the engine .
.. Let the engine cool down.
.. Place a thick rag over the coo lant expansion
tank
c> page 263 , fig. 246 and carefully
twist the cap counter-clockwise c> ,&. .
.. Add coo lant m ixed in the correct rat io
c:::> page 262, Coolant.
.. Twist the cap o n again tightly.
Rep lacement engine coo lant must conform to
exact spec ificat ions
c> page 262, Coolant.
We recommend using only coo lant add it ive
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 considerab le amount of
coolant, the n you should add cold ant ifreeze
and co ld water on ly when the eng ine is cold .
Always use
new engine coolant when refilling.
Do not fi ll coo lant above the "MAX" mark. Ex­
cess coolant will be forced o ut 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 engi ne parts. Under certain
cond it ions, the ethylene g lycol in e n­
gine coolant can catch fire .