2018 AUDI Q7 engine

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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

Checking and Filling
Brake fluid
N
N
~ N ,l: CX) al
Fig. 266 Engine compartment: cap on brake flu id reservo ir
Observe the safety precautions c> .&. in Working
in the engine compartment on page 319.
Checking the br ake fluid l evel
~ Read the brake fluid level on the brake fluid
reservo ir
c> page 321, fig . 263 . The brake fluid
level must be between the MIN and MAX mark­
ings
Q ,&. .
The brake fluid level is mon itored automat ically .
Chan ging the b ra ke fluid
Have the brake fluid changed regularly by an au­
thorized Audi dealer or authorized Audi Servic e
Facility .
A WARNING
-If the brake fluid level is be low the MIN
marking, it can impair the braking effect
and dr iving safety, which increase the risk of
an accident. Do not cont inue d riving . See an
authorized Aud i dealer or autho rized Audi
Service Facility for assistance .
-If the brake fluid is o ld, bubbles may form
in the b rake system du ring heavy b raking.
T his would impair brak ing performance and
driving safety, which increases the risk of an
accident.
- T o ensure the brake system functions cor­
rectly, only use brake fluids t hat comply
with VW standard 501 14 or
FMVSS-116 DOT 4 .
(D Note
-If the brake fluid level is above the MAX
mark ing, brake fluid may leak out over the
326
edge of the reservoi r and result in damage
to the vehicle.
- Do not get any brake fluid on the vehicle
paint, because it will corrode the paint.
Battery
General warnings about batteries
Because of the comp lex power supp ly, all wo rk
on batter ies such as d isconnecting, replacing,
etc., sho uld
onl y be performed by an autho rized
Audi dealer or au thorized A udi Servi ce Fac ility
Q _& .
The term "vehicle battery" refers to the 12 Volt
ba ttery in your vehicle.
Detail ed warnings for th e vehicle battery :
Always wear eye protection.
&
Battery acid is highly corros ive. Always
wear protective gloves and eye protection .
So
®
Fire, sparks, open flame and smoking are
forbidden .
£
A highly explosive m ixture of gases can
form when charging batter ies.
®
Always keep children far away from bat-
tery electrolyte and the battery.
~
Always follow the instructions in the oper -
ating manual.
A WARNING
All work on the battery or electrical system in
your vehicle can result in injuries, chemical burns, accidents or burns. Because of this, all
work must be performed
on ly by an author­
ized Audi dealer or authorized Audi Service
Fac ility .
A WARNING
California Proposition 65 Warning:
- Battery posts, term inals and related acces­
sories conta in lead and lead compounds,
chemicals known to the State of California
to cause cancer and reproductive problems.
Wash hands after handling.
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:E ' (D Note
-If the vehicle will be p arked for long periods
of time, protect it against t he cold so that it
will not be destroyed by "freezing"
¢ page 327.
- There are electrical components under the
cargo floor behind a trim pane l that warm
up du ring operat ion. To reduce the r isk of
the components overheat ing, do not store
ob jects s uch as blankets u nder the ca rgo
floor. If they overheat, the components will
swi tch off tempo rar ily. Thi s wi ll be indicated
by a message in the ins trumen t clus ter, un­
ti l the temperature returns to normal.
@,l For the sake of the environment
'8' B atteries cont ain poll uti ng substa nces s uch
a s s ulfu ric a cid and le ad. Contact an aut hor­
ize d Au di dealer or a uthorized Aud i Service
Facility for more info rmation.
Vehicle battery
The term "vehicle battery" refers to the 12 Volt
battery in your vehicle.
Not running the vehicle for long periods of
time
If yo u do not dr ive you r vehicle for seve ral days or
weeks, e lectrical equipment is gradually sca led
back or switched off. This reduces ene rgy use and
ensu res the veh icle w ill be able to start after long
pe riods of time¢
page 147. Some convenience
functions, suc h as inter ior light ing or power seat
adjustment, may not be available under certa in
circumstances. These convenience funct ions w ill
be ava ilable again once you switc h the ign ition on
and start the engine.
Even when electrical equ ipment is switched off,
the equ ipment can still d rain the vehicle battery
if the vehicle is not drive n for long per iods of
time. Deep d rain ing results in a chemical reaction
that des troys the inside of the vehicle b attery.
The vehicle batte ry must be charged every mont h
to reduce the risk of this happening ¢
page 327.
Contact an author ized Audi dealer or authorized
Aud i Service Facility for more information.
Chec king and Filling
Winter operation
Co ld wea ther places higher dem ands on the vehi­
cl e battery . This res ults in reduced s tarting ab ili­
ty. Have the vehicle battery checked by an au ­
t h orized Audi dea le r or authorized Audi Service
Facility before the cold time of year.
Charging the vehicle battery
Fi g. 2 67 En g in e compar tmen t: co nnecto rs fo r a c harger
and j ump start cab les
Requireme nt: only use chargers with a ma ximum
charging voltage of 30 amp s/14 .8 Volts .
The
vehicle battery cab les remain connec ted .
.,. Read the warnings ¢
A in General warnings
about batteries on page 326
and ¢ &_ .
.,. Switch off the ignit ion and all electrical equ ip­
ment .
.,. Open the hood ¢
page 320.
.,. Open the red cover on the pos itive termina l
¢fig . 267.
.,. Clamp the charger terminal clamps to the jump
start pins
accord ing to the instructions. (pin
under the red cove r= "positive", pin with he x­
agona l head= "negat ive").
.,. Insert t he power cable for t he charging dev ice
into the socket and switch the device on .
.,. At the end of the charg ing p rocess, sw itch the
charger off and pull the power cable out of the
so cket.
.,. Remove the ch arger termin al cl amps.
.,. Close the red cover on the positive termina l.
.,. Close the hood
¢ page 320 .
327

Checking and Filling
& WARNING
- A highly explosive mixture of gases can form
when charging batter ies . Only charge the
vehicle battery in well-vent ilated areas .
- A drained vehicle battery can freeze at tem­
peratures a round 32 QF (0 QC) . A frozen or
thawed veh icle battery must not be charged
and must not be used anymore. If ice fo rms,
the battery housing ca n crack and ba tte ry
electrolyte can lea k out, which increases the
risk of an explosion and chemi cal bu rns.
Contact an authorized Au di dea le r o r au­
tho rized Audi Serv ice Facility fo r more info r­
mation.
- Do not connect o r disconnect the ch arging
cable while charg ing because this increases
t h e risk of an exp losion.
(D Tips
- Only charge the vehicle battery through the
con nections in the engine compartment .
- Read a ll of t he manufacture r's ins tructions
for the charger befo re charg ing the vehicle
battery.
Windshield washer system
F ig. 26 8 Eng ine co mpa rtment: was her fluid reservo ir cap
The winds hield washer fluid reservoir O contains
the cleaning solution for the windshield and the
headlight washer system*
c> page 321, fig . 263.
The reservo ir capacity can be found in
c:;, page 375.
To reduce the r isk of lime sca le deposits o n the
spray nozzles, use clean water with low amounts
of calcium . Always add window cleane r to the wa-
328
te r. When the outside tempe ratures are cold, an
anti-freezing agent shou ld be added to the water
so that it does not freeze.
(D Note
- The concentration o f anti -freezing agent
must be adjusted to the ve hicle operating
conditions in the respective cl imate. A con­
centration that is too high can lead to vehi­
cle damage.
- Never add radiator anti-freeze or other addi­ tives to the washer fluid.
- Do not use a glass cleaner t hat contains
paint so lvents, because t his could damage
the paint.
Service interval display
The service interval display detects when your ve­
hicle is due for service .
Checking service intervals
You can check the remaining d istance or t ime un­
ti l the next oi l change or next inspection in the
Infotainment system.
.,. Select in the Infotainment system : the
I MENU I
button > Veh icle > left cont rol button > Se rvi ce
& checks > Service inter vals .
Resetting the indicator
An a utho rized Audi deal er or author ized Audi
Se rvice Facility wi ll reset the service interval dis ­
play after performing se rvice .
If you have changed the o il yourself, yo u must re­
set the o il change interval.
.,. Select in the Infotainment system: thel
MENU !
button > Vehicle > left cont rol button > S ervice
& checks > Service intervals > Reset oil change
interval.
I f an o il cha nge or inspection is due, you can ac­
cess i t in the I nfot ainment system . T he display
works in two s tages :
-Service reminder : after a certa in distance is
dr iven, a message appea rs in the instrument

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::r ' cluster display every time the ignition is switch ­
ed on . The remaining distance and time is
displayed br iefly.
- Service due : if your vehicle has reached a serv­
ice interval, a message appears briefly after
switching the ignition on.
({;D) Note
-Only reset the oil change indicator if the oil
was changed .
- Following the service intervals is critical to
maintaining t he service life and va lue of
your vehicle, especia lly the engine . Even if
the mileage on the vehicle is low, do not ex­
ceed the time for the next service.
Checking and Filling
329

Wheels
on the label on the driver's side B­
pillar, always follow the specifica­
tion on the B-pillar label
r::=> page 340, fig. 271.
Make sure that the tire designa­
tion on your tire matches the des-
Model/ Tire designation
ignation on the tire pressure label
and the tire pressure table.
The following table lists recom­ mended tire pressures in cold
tires according to the load and
the size of the tires installed.
Tire pressure
Engine Normal load Maximum load
(up to 3 people)a)
front rear front rear
PSI kPA PSI kPA PSI kPA PSI kPA
Q7:
255/60 R18 108H 32 220 32 220 32 220 35 240
2.0L 255/55 R19 111H 32 220 32 220 32 220 35 240
4 cylinders
285/45 R20 112H 32 220 32 220 32 220 35 240
Gasoline en-
gine 285/45 R20 112V
32 220 32 220 32 220 35 240
285/40 R21109Y 32 220 32 220 32 220 35 240
285/35 R22 106V 32 220 3
2 220 35 240 38 260
Q7: 255/60 R18 108H 32 22 0 32 22 0 32 22 0 35 2
40
3.0L 255/55 R19 111H 32 220 32 220 33 230 36 250
6 cylinders
285/45 R20 112H 32 22 0 32 22 0 32 22 0 35 2
40
Gasoline en-
gine 285/45 R20 112V
32 220 32 220 32 220 35 240
285/40
R21109Y 32 220 32 220 3 2 220 35 240
285/35 R22 106V 32 220 32 220 38 260 41 280
Q7: 255/60 R18 108H 32 2
20 32 220 33 230 3 6 250
3.0L
255/55 R19 111H 32 220 32 220 35 240 38 260
6 cylinders
285/45 R20 112H 32 220 32 220 33 230 36 250
Diesel engine
285/45 R20 112V
32 220 32 220 33 230 36 250
285/40 R21109Y 32 22 0 32 22 0
33 2
30
36 2
50
285/35 R22 106V 32 220 32 220 39 270 42
290
SQ7: 255/55 R19 111H 35 2
4 0
35 24
0
36 25
0
39 27
0
4.0L
285/45 R20 112V 35 240 35 240
36 250 39 270
a-cylinder
285/45 R20 112H 35 240
35 240
36 250
39 270
diesel engine
285/40 R21109Y
35 240 35 240
39 270 42
290
285/35 R22 106V 38 2 60 38 260 45 310 48 330
a) 2 peop le in the front , 1 person in the rear
342

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:E ' Emergency assistance
General information
.. Par k the vehicle as far as poss ible from moving
traff ic in the event of a breakdown. In the event
of a flat tire, park the vehicle on a leve l surface .
It you are on a steep h ill, be especially careful.
.. Set the parking brake .
.. Switch the emergency flashe rs on.
.. Have the passengers exit the veh icle . They
sho uld move to a safe place, for example be­
hind a guard rail.
& WARNING
Follow the steps g iven above. This is for your
protection and the for the safety of o ther driv ­
ers .
Equipment
Vehicle tool kit/tire mobility kit/vehicle
jack
App lies to: veh icles with the vehicle tool kit, tire mobili ty ki t
an d vehicle jac k
The vehicle tool kit, vehicle jack, tire mobility kit
and comp ressor are s to red in the luggage com­
pa rtment unde r the cargo floor cove r. Lift the
cargo floor using the handle.
& WARNING
Impro per use of the vehicle jac k can ca use se­
rious perso nal injuries.
- Never use the screw drive r hex he ad to
tigh ten whee l bolts, since the bol ts cannot
atta in the necessary tighten ing torque if you
use the hex head, potentially ca using an ac­
c ident.
- The factory-supplied jack is i nten ded on ly
for your vehicle model. Under no circ um­
stances should it be used to lift heavy
vehicles or other loads; you r isk injuring
yourself.
- Never start the engine whe n the vehicle is
ra ised, which could ca use a n accident.
- Support the veh icle secure ly with appropr i­
ate stands if work is to be performed under-
Em ergen cy as sis tanc e
neath the vehicle; otherwise, there is a po­
tential risk for injury.
- Never use the jack supplied with your Audi
on another vehicle, particularly on a heavier
one. The jack is only su itable for use on the
veh icle it came with.
(D Tips
The vehicle jack in your vehicle is mainte ­
nance-free.
Tire mobility kit
Preparation
.. Read a nd follow the important safety precau-
t ions
¢page 357 .
.. Set the park ing brake .
.. Select the "P" selector lever position .
.. Check if a repair with the tire mobility kit is pos ­
sible
¢ page 357.
Using the tire mobility kit
Fig. 273 Tire: tire damage t hat can not be repaired
T he tire repair is only meant for tempora ry use .
Change the spare tire as soon as possible¢& .
If the t ire is p ierced by an o bject su ch as a nail,
do no t r emove the object from the tire .
T he tire mob ility kit can be used at tempe ratures
as low as -4 °F (-20 °C).
The tire mobility kit may not be used:
- if the tire has cuts or p unctures that are larger
than 0.16 in (4 mm)
(D ¢ fig . 273
-if the rim is damaged @
- if you drove with very low t ire pressure or with-
out air in the tire @ ..,.
357

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:E ' .. Using the hex socket wrench © (from the veh i­
cle tool kit), turn the v ehicle jack* under the
li ft ing po int on the side sill unti l it is high
enough that the arm@c:>
fig. 2 79 is under the
designated plastic moun t .
.. Align the vehicle jack* so the arm @engages in
t h e des ignated l ift ing po int in the door s ill and
the base @ lies f lat on the ground . The base @
must be d irectly under the lifting poi nt @ .
.. To lift the vehicle , pl ace the ratchet @(from
the vehicle too l
kit) with the correct side on the
hex socket wrench ©-
.. Move the ratchet @clockwise back and forth
unt il the wheel lifts up slightly from the
ground.
A WARNING
- Make sure the vehicle jack* is stable. There
is a r isk of injury when the ground is slick or
soft, because the vehicle jack* could slide or
sink.
- Only ra ise your vehicle with the vehicle jack*
provided by the factory .
If you use a vehicle
jack des igned for another veh icle, your vehi­
cl e can slide and ca use i nju ry .
- Posi tion the vehicle ja ck* only at the desig­
na ted mounting points on the side s ill and
align the jack. O therwise, the ve hicl e jack *
cou ld slip and ca use an inj ury i f it does not
have sufficie nt hold on the vehicle.
- Vehicles wi th air suspension*: changes in
tempe rat ure or load can affect the height of
the stopped vehicle.
- To reduce the risk of an accident, never start
the engine when the vehicle is raised .
- T o reduce the risk of injury, support the ve­
hicle securely with suitab le stands if work is
to be performed underneath the vehicle.
- To help prevent injury to yoursel f and your
passengers:
- Do not ra ise the vehicle unt il you are sure
the jack* is securely engaged.
- Passengers must not remain in the vehicle
when it is jacked up.
- Make sure that passengers wait in a safe
p lace away from the vehicle and well away
from the road and traff ic .
Em ergen cy as sis tanc e
-Make sure jack position is correct, adjust
as necessary and then continue to raise
the jack*.
- If work has to be done under the vehicle,
ensure that it is safely supported on suita­
ble stands -risk of injury!
- Never start the eng ine when the vehicle is
on the jack* -risk of accident!
(D Note
Do not lift the ve hicle by the s ill. Pos ition the
vehicle jack* only at the designated mount ing
points on the side sill. Otherw ise, your veh icle
will be damaged.
(!) Tips
The vehicle jack mode* switches off automati­
cally at speeds above 6 mph (10 km/h).
Removing and installing a wheel
F ig . 28 0 Whee l: in terna l he x socke t to tu rn th e whee l
bo lt s
F ig . 2 81 W hee l: ali gnm en t p in in the top ho le
Removing a wheel
.. Remove the top wheel bolt completely using
the hex socket in the screwdriver handle (in the
IJJI>
361