2018 AUDI Q7 coolant

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::r - Engine compartment
Working in the engine compartment
Special care is required if you are working in the engine compartment
F or wo rk in th e en gine co mpartm en t, suc h as
ch eck ing and filli ng flu id s, th ere is a r isk o f in­
jur y, sca lding, ac cident s, a nd b urn s. Fo r this
re aso n, follow all the warning s and gener al
s af ety pr ecau tions pr ovided in the f ollowin g in­
f o rm ation . The engine comp artm en t is a d an­
g ero us ar ea .
¢ ,&. .
A WARNING
- T urn the engine off.
- Swit ch the ign ition off.
- Set the parking brake .
- Select the "P" selector lever posit ion .
- Let the engine cool down.
- Never open the hood when there is steam or coolant escaping from the eng ine compart­
ment, because there is a risk that you could
be burned . Wait until no steam or coolant is
escaping.
- Keep children away from the engine com­
partment .
- Never spill flu ids on a hot engine. These flu­
ids (such as the anti -freezing agent con­
tained in the coolant) can ignite .
- Avoid short circu its in the electrical system .
- When working in the engine compartment,
remember that the radiator fan can sw itch
on even if the ign ition is switched off, which
increases the risk of injury .
- Never open the cap on the coolant expan­
sion tank when the eng ine is warm. The
cooling system is under pressure .
- To protect your face, hands, and arms from hot steam or coolant, cover the cap with a
large cloth when opening.
- Do not remove the engine cover under any circumstances . This increases the risk of
burns.
- If tests need to be performed w ith the en­
gine running, there is additional danger due
to moving components (such as the ribbed
Ch eck ing and F illing
be lt, alternator and radiator fan) and from
the high-voltage ignition system.
- Do not under any circumstances activate the
throttle inadvertently (for example, by hand
from the engine compartment) if the veh i­
cle is stat ionary but the eng ine is running
and a gear is engaged . Otherwise, the veh i­
cle will start to move immed iately and this
could result in an acc ident.
- Pay attent ion to the following warnings
when work on the fue l system is required :
- Do not smoke .
- Never wor k nea r open flames .
- Always have a working fi re extingu isher
nearby.
- All work on the battery or electrical system
in your veh icle can result in inju ries, chemi­
cal burns, acc iden ts or bu rns . Because of
this, all work m ust be performed
onl y by an
authorized Audi dealer or authorized Audi
Service Facility.
- To reduce the risk o f electric shock and in ­
jury, never touch the following components
when the engine is running or is being start­
ed:
- Ign it ion cable
- Other components in the electronic high -
voltage ign ition system
- If you must check or perform work on the
engine wh ile it is running:
- Set the parking brake first and then se lect
the "P" selector lever position .
- Always proceed w ith extreme caution so
that clothing, jewelry or long hair do not
become caught in the radiator fan, fan
belt or other moving components or do
not come into contact with hot compo­
nents. Tie back long hair before beginning
work and do not wear clothing that can hang down into the engine .
- lim it your exposure to exhaust and chemi­
cals to as short a time as possible
¢ ,&. .
A WARNING
California Proposition 65 Warning:
319

Checking and Filling
- Engine exhaust, some of its constituents,
and certain vehicle components contain or
emit chemicals known to the State of Cali­
forn ia to cause cancer and birth defects and
reproduct ive harm . In addition, certain flu­
ids contained in veh icles and certain prod­
ucts of compo nent wear contain or emit
chemicals known to the State of California
to cause cancer and birth defects or other reproductive harm .
- Battery posts, termina ls and related acces­
sories contain lead and lead compounds, chemicals known to the State of California
to cause cancer and reproductive harms.
Wash hands after handling .
(D Note
When filling flu ids, be sure not to mix the flu ­
ids up . Otherwise severe ma lfunctions and en­
gine damage w ill occur .
@ For the sake of the environment
You shou ld regularly check the ground under
your vehicle in order to detect leaks quickly. If
there are visible spots from oil or other fluids,
bring your vehicle to an authorized Audi deal­
er or author ized Audi Service Facility to be
checked .
Opening/closing the hood
The hood is released from inside the vehicle.
Fig . 261 D river footwell : release leve r
320
Fig. 262 Unlocked hood : lev er
Make sure the wiper arms are not raised up from
the windshie ld. Otherw ise the paint could be
damaged .
Opening the hood
"'With the driver's door open, pull the lever be ­
low the instrument panel in the direction of the
arrow ~
fig. 261 .
"' Raise the hood slightly~ &-
"' Press the lever~ fig. 262 in the direction of the
arrow. This releases the hooks .
"' Open the hood.
Closing the hood
"' Push the hood down until you over ride the
force of the struts .
"' Let the hood fall lightly into the latch .
Do not
press it in.
~ .&_ .
A WARNING
-Never open the hood when there is steam or
coo lant escaping from the engine compart­
ment, because there is a risk that you could
be burned. Wait until no steam or coolant is
escaping.
- For safety reasons, the hood must always be
closed securely while driving . Because of
this, always check the hood after closing it
to make sure it is latched correctly . The
hood is latched if the front corners canno t
be lifted .
- If you notice that the hood is not latched
while you are driving, stop immed iate ly and
close it, because driving when the hood is
not latched increases the r isk of an accident . ..,.

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:E ' -If the hood is not latched completely, it
could fly up while you are driv ing and ob­
struct your vision.
Engine compartment overview
The most important check points.
Chec king and Filling
Fig . 2 63 Typ ical location of the reservoir a nd t he eng ine o il filler ope ning
@ Jump start point(+) under a cover,(-) with
hex head screw
c::> page 32 7 c::> page 369
@ Coolant expans ion tank ( - L) c::> page 325
@ Engine oi l label * with VW standard
<=:> page 321
© Engine oil filler opening ('t=:r.) c::> page 322
® Brake f luid reservoir ((0)) c::> page 326
® Washer fluid reservoir (~) c::> page 328
The coolant expansion tank @and the engine oil
fi ller opening ©
c::> fig. 263 may be located in dif­
ferent places depending on the engine version.
A WARNING
Read and follow all WARNINGS before check­
ing anything in the eng ine compartment
c::> page 319.
Engine oil
If the engine oil level is too low
If you need to add engine oil, us e an oil that i s
li sted on the st icker.
The sticker is located at the
front of the engine compartment
c::> page 321 ,
fig. 263.
If the recommen ded engine o il is not avai lab le,
in an emergency you may add a maximum of 1
quart
( l liter) of ACEA C3 or API SN eng ine oi l
one time until the next oil change.
F or more i nformation on the correct eng ine oil
for yo ur vehicle, contact an author ized A udi deal­
er or authorized Aud i Service Facility . Have the o il
c h anged by an authorized Audi dealer or author-
i z ed Service Facility.
ll>
321

Check ing and F illing
Detergent additives in the oil will make fresh oi l
look dark after the engine has been running for a
short t ime. Th is is norma l and is not a reason to
change the oil more often than recommended.
Because of the prob lem of p roper disposa l, along
with the special tools and necessary expertise re­
qu ired, we strongly recommend that you have
your oil changed by an authorized
Audi dealer or
a qualified service station .
If you choo se to change your oil your self , please
note the following important information:
A WARNING
To reduce the risk of personal injury if you
must change the engine oil in your veh icle
yourself:
- Wear eye protection.
- To reduce the risk of burns from hot engine
o il, let the eng ine cool down to the touch.
-
- When removing the oi l drain plug with your
fingers, stay as far away as poss ible. A lways
keep your forearm paralle l to the ground to
help prevent hot oi l from running down your
arm.
- Drain the oil into a container des igned for
this purpose, one large enough to hold at least the total amount of oil in your eng ine .
- Engine oil is poisonous. Keep it well out of
the reach of chi ldren .
- Cont inuous contact w ith used engine oil is
harmful to yo ur sk in. A lways protect your
sk in by washing o il off thoroug hly w ith soap
and water.
@ Note
Never mix o il add it ives wit h your engine o il.
These additives ca n damage your eng ine and
adversely affect your Aud i Lim ited New Veh i­
cle Warranty.
@ For the sake of the environment
- Before changing your oil, f irst make sure
you know w here yo u can properly dispose of
the used oil.
- Always dispose of used engine oil properly. Do not dump it on garden soi l, wooded
324
areas, into open streams or down sewage
drains.
- Recycle used engine o il by ta king it to a used
engine oi l collection facility in yo ur a rea, or
contact a service station.
Cooling system
Coolant
The eng ine cooling system is filled w ith a mixtu re
of p urified wate r and coolant additive a t the fac­
tory. This coolan t m ust no t be no t changed.
The coo lant level is mon itored through th e . in­
dicator light
r=;, page 22. However, we do recom­
mend oc cas io nally checking the coolant leve l
manu ally.
If you must add coolant, use a mixture of water
and coolant additive . Mix ing the coo lant add itive
with dist illed wate r is recommended.
Coolant additive
The coolant additive is made of anti-freezing and
corrosion protection agents . Only use the follow­
i ng coolant additives . These add itives may be
mixed wi th each other.
Coolant additive Specification
G12 evo TL 774 L
G12 ++ TL 774 G
G 13
TL 774 J
The amou nt of coolant addit ive that needs to be
mixed with water depends o n the c lima te where
t h e ve hicle w ill be operated. If the coo lant add i­
t ive pe rcen tage is too low, the coolan t ca n freeze
and damage the engine.
Coolant Freeze protec-
additive tion
Wa rm min
. 40% min. -13 °F
regions max
. 45% ( -25 °C)
Cold min. 50% max. -40 °F
regions max. 55% (-40 °C)

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:E ' (D Note
-Before the start of winter, have an author­
ized Audi dealer or author ized Audi Service
Facility check if the coolant additive in your
vehicle matches the percentage appropriate
for the climate . Th is is especially important
when driving in co lder climates.
- If the appropriate coolant additive is not
available in an emergency, do not add any
other additive. You could damage the en­
gine. If this happens, only use wa te r and re­
store the co rrect mixture ratio with the
spec ified coo lan t additive as soon as possi­
ble .
- Only refill with new coo lant.
- Radiator sealant must no t be mixed with
the coo lant.
Adding coolant
Fig . 26 5 Eng ine compartme nt: release button on coolant
expansion tank
Observe the safety precautions ¢ page 319,
Working in the engine compartment .
Checking the engine coolant level
.,. Park the vehicle on a level surface .
.,. Swi tch the ign ition off.
... Read the coolant leve l on the coo lant expansion
tank¢
fig . 265.
... The coolant level must be between the MIN and
MAX markings when the engine in cold. When
the engine is warm it can be slightly above the
MAX marking.
Adding coolant
Requirement: there must be a residual amount of
coo lant in the expans ion tank
¢ (D .
Chec king and Filling
.,. Let the engine cool down.
... Place a cloth over the coolant expansion tank
cap.
... Push the release button
¢fig. 265 and carefu l­
ly unscrew the cap to the left until you feel re­
sistance ¢.&, .
.,. Push the release button aga in and remove the
cap comple tely .
.,. Add coo lant m ixed in the cor rec t rat io
¢page 324 up to t he MAX mar king.
... Ma ke sure that t he f luid level remains stab le .
Add mo re coolant if necessary .
... Tu rn the cap to the right to secure it until you
fee l res istance a second time.
Coola nt loss usually in dicates there is a leak . Im­
mediate ly drive your vehicle to a n authorized
Audi dealer or authorized A udi Service Facility
and have the cooling system inspected.
If the
cooling system is not leaking, a loss can come
from the coolant boiling through overheat ing
and being pushed out of the cooling system .
A WARNING ,.__
-The cooling system is under pressure. Do
not open the coo lant ex pansion tan k cap
when t he engine is hot. This increases the
ris k of burns .
- Th e coolan t addi tive and the coolan t can be
dangerou s to yo ur he alt h . Fo r th is reason,
keep the coolant in the original cont ainer
an d away from children. There is a risk of
poisoning .
- When working in the engine compar tment,
remember that t he radiator fan can switch
on even if the ignition is switched off, which increases the risk of injury .
{U) Note
Do not add coolant if the expansion tank is
empty. There may be air in the cooling sys­
tem, which increases the risk of engine dam ­
age. If this is the case, do not cont inue driv­
i ng. See an authorized A udi dealer or author­
i zed Audi Service Facility for assistance .
-
325

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Glossary of tire and loading
terminology
Accessory weight
means the combined weight (in
excess of those standard items
which may be replaced) of auto­ matic transmission, power steer ­
ing, power brakes, power win­
dows, power seats, radio, and
heater, to the extent that these
items a re available as factory- in­
stalled equipment (whether i n­
stalled or not) .
Aspect ratio
means the ratio of the height to
the width of the tire in percent .
Numbers of 55 or lower indicate a
low s idewall for improved steer­
ing response and better overall
handling on dry pavement.
Bead
means the part of the tire that is
made of steel wires, wrapped or
reinforced by ply cords and that is
shaped to fit the rim .
Bead separation
means a breakdown of the bond
between components in the bead .
Wheel s
Cord
means the strands forming the
plies in the tire .
Cold tire inflation pressure
means the tire pressure recom­
mended by the vehicle manufac ­
turer for a tire of a designated
size that has not been driven for more than a couple of miles (kilo­
meters) at low speeds in the
three hour period before the tire pressure is measured or adjusted .
Curb weight
means the weight of a motor ve­
hicle with standard equipment in­
cluding the maximum capacity of
fuel, oil , and coolant, air condi­
tioning and additional weight of
optional eq uipment .
Extra load tire
means a tire designed to operate
at higher loads and at highe r in­
flation pressures than the corre­
sponding standard tire . Extra load
tires may be identified as "X L",
"xl", "EXTRA LOAD", or "RF" on
the sidewall. .,.
333

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l: ..
& WARNIN G
Please note the important safe­
ty precautions regarding tire
pressure
c:::> page 340 and load
limits
c:::>poge 343.
Tires and vehicle load limits
There are limits to the amount of
load or weight that any vehicle
and any tire can carry. A vehicle
that is overloaded will not handle
well and is more difficult to stop.
Overloading can not only lead to
loss of vehicle control, but can al­
so damage important parts of the
vehicle and can lead to sudden
tire failure, including a blowout
and sudden deflation that can
cause the vehicle to crash .
Your safety and that of your pas­ sengers also depends on making
sure that load limits are not ex­
ceeded . Veh icle load includes ev­
erybody and everything in and on
the vehicle . These load limits are
technically referred to as the vehi­
cle's
Gross Vehicle Weight Rat ­
ing ("GVWR").
The "GVWR" includes the weight
of the basic vehicle, all factory in­
stalled accessories, a full tank of
fuel, oil, coolant and other fluids
Wheels
plus maximum load . The maxi­
mum load includes the number of
passengers that the vehicle is in­
tended to carry ("seating capaci­
ty ") with an assumed weight of
150 lbs. (68 kg) for each passen ­
ger at a designated seating posi­
tion and the total weight of any
luggage in the vehicle . If you tow
a trailer, the weight of the trailer
hitch and the tongue weight of
the loaded trailer must be includ­ ed as part of the vehicle load .
The
Gross A xle Weight Rating
(" GAWR ") is the maximum load
that can be applied at each of the
vehicle's two axles.
T he fact that there is an upper
limit to your vehicle 's Gross Vehi­
cle Weight Rating means that the
total weight of whatever is being
carried in the vehicle (including
the weight of a trailer hitch and
the tongue weight of the loaded
trai ler) is lim ited. The more pas­
sengers in the vehicle or passen ­
gers who are heavier than the
standard weights assumed mean
that less weight can be carried as luggage.
The Gross Vehicle Weight Rating and the Gross Axle Weight Rating .,.
34 3

Consum er Info rmation
today's automobi les, have steadi ly red uced the
scope of maintenance and repairs which can be
carried out by veh icle owners.
Al so , sa fet y and
en vironmental
concerns place very strict limits
on the nature of repairs and adjustments to en­
g ine and transmission parts w hich an owner can
perform .
Maintenance, adjustments and repairs usually re­
qu ire special tools, testing devices and other
equ ipment available to specially trained work ­
shop personnel in order to assure proper per­
forma nce, re liab ility and safety of the ve hicle and
its many systems .
Improper maintenance, adjustments and repairs
can impair the operation and reliab il ity of your
ve hicle and eve n void your vehicle warra nty .
Therefo re, proof of se rvicing in accordance w ith
the m aintenance schedule may be a condition fo r
up hold ing a possible wa rranty claim made wi thin
the warranty pe riod.
Above all, ope rational safety can be adversely af­
fected, c re ating unnecessa ry risks fo r you and
your passengers.
I f in doubt about any servicing, have it done by
your author ized Audi dealer or any other prope rly
eq uipped and qualified workshop . We strongly
urge yo u to g ive your author ized Audi dealer the
opportunity to perform a ll scheduled mainte ­
nance and necessary repairs. Your dealer has the
facilities, origina l parts and tra ined specialists to
keep your veh icle running properly.
Performing limit ed maint enanc e yourself
The fo llowing pages describe a limited number of
procedures whic h can be performed on your ve hi­
cle with ordinary tools, should the need arise and
tra ined personnel be unava ilable. Before per ­
forming any of these procedures, always thor­
ough ly read all of the app licab le text and carefu l­
ly follow the instructions g iven . Always rigorously
observe the
W ARNINGS prov ided .
Befo re yo u check an ything in the engine com ­
partment , alway s read and h eed all WARNINGS
c> .&. and c> .&. in Working in the engine compart­
ment on page 319 .
378
A WARNING
-Ser ious personal injury may occur as a result
of improperly performed maintenance, ad­
justments or repairs .
- Always be extreme ly careful when work ing
on the vehicle . Always follow commonly ac­
cepted safety practices and general com­ mon sense. Never r is k personal in jury.
- Do not attempt any of the maintenance,
checks or repairs described on the following pages if you are not fu lly fam il iar with these
or other procedu res with respect to the ve­
hicle, or are uncertain how to proceed.
- Do not do any work wi thout the prope r tools
and eq uipmen t. H ave the necessary wo rk
done by your authorized Audi dealer or an ­
other properly equipped and qualified work­
shop.
- The engine compartment of any motor vehi ­
cle is a potentially hazardous area . Never
reach into the area around or touch the radi­
ator fan. It is temperature controlled and
can switch on suddenly - even when the en­
gine is off and the ignition key has been re­
moved. The rad iator fan switches on auto­
mat ically when the coolant reaches a certain
temperature and will con tinue to run until
the coolant temperat ure drops.
- Always remove the igni tion key before any­
one gets under the vehicle.
- Always support your vehicle with safety
stands if it is necessary to work underneath
the vehicle. The jack* s upplied w ith the vehi­
cle is no t ad equate for th is pu rpose and
could collapse causing se rious personal in ­
jury .
- If you must work underneath the vehicle
with the wheels on the ground, always make
sure the vehicle is on level ground, that the
wheels a re always sec urely blocked and that
the engine cannot be started.
- Always make sure the transmission se lector
lever (automatic t ransm iss ion) is in P (Park
position) and the park b rake is applied .