2018 AUDI Q7 ECU

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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::r - Adding engine oil
Fig. 264 Engine compa rtment : en gin e oil fille r opening
cover
Observe the safety p recautions r=:> .&. in Working
in the engine compartment on page
319 .
"'Turn the eng ine off.
"' Open the hood
r=:> page 320.
"'Unscrew the cap~ for the eng ine oi l filler
opening
r=;, fig. 264.
"' Carefully add 0.5 quart (0.5 liter) of the correct
oi l
r=;, page 321.
"'Close the engine oil filler opening cap.
"' Close the hood.
"' Restart the ignition after two mi nutes and read
the current o il level in the Infotainment system
r=:> page 322 , Checking the engine oil level.
"' Add more oil if necessa ry .
.8, WARNING
- Whe n add ing o il, do not let oil d rip on to hot
engine components . This increases the risk
of a fire.
- Yo u m ust seal the cap on the oil fi lle r open ­
ing correctly so that oil does not leak out
onto the hot engine and exhaust system
when the eng ine is running, because this is
a fire hazard.
- Always clean skin thoroug hly if it comes into
contact with engine oil.
- Engine oil is poisonous and must be kept
out of reach of c hil d ren .
- Store the engine oi l securely in the original
container.
(Q) Note
- If the message Ill Plea se redu ce oil level
appea rs, there is too much oil in the engine
Ch eck ing and F illing
and there is a risk of catalyt ic converter and
engine damage . Do not start the engine.
Contact an authorized A udi dealer or au ­
thori zed Audi Service Fac ility to have excess
eng ine oi l extracted if necessary.
- Your Limited New Vehicle Warranty does not cover damage or malfunctions due to
failure to fo llow recommended mainte­
nance and use requ irements as set fort h in
the Audi Ow ne r's Manua l and War ranty
&
Ma intenance booklet.
- Use only a h igh quality engine o il that ex­
press ly complies with the Audi o il quality
s tandard spec if ied for yo ur vehicle's eng ine.
Us ing any othe r oi l can c ause ser io us eng ine
damage.
- Do not mix a ny addit ional lubr ican ts into
t he engine oil. Damage caused by such add i­
t ives is no t covered by the warranty .
@ For the sake of the environment
-Oil sho uld neve r en ter the sewer system or
c ome in to con tact w ith the ground.
- Pay attent ion to lega l requirements when
disposing of empty o il conta iners.
Changing the engine oil
We recommend that have your oil changed by an
authorized Audi dealer or a qualified service sta­ tion.
Befo re you check anything in the engine compart­
ment,
a lwa ys read and heed all WARNINGS r=;, &.
in Working in the engine compartment on
page
319.
T he eng ine o il must be changed according to the
i nterva ls spec ified in your War ranty
& Ma inte­
nance booklet . This is ve ry importa nt because the
l u brica ting proper ties of oil dim inish g radua lly
during norma l vehicle use .
U nder some c ircumstances the engine oil s hou ld
be c hanged more freq uent ly. Cha nge o il more of­
ten if you dr ive mostly s hort d istances, operate
the vehicle in dusty areas or under p redominantly
stop-and -go traffic conditions, or have your ve hi­
cle where temperatures remain be low free zing
for extended periods.
323

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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 .
-
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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

Emergency assistance
placing the Automatic Transmission in P
(Park) will
not prevent the vehicle from
moving.
- Before you change a wheel, be sure the
ground is level and firm. If necessary, use a
sturdy board under the jack*.
-Always store the vehicle tool kit, the jack* and the replaced tire in the luggage com­partment <=>
page 257.
@ Tips
-Obey all laws.
- Before changing the wheel, you must acti- vate the jacking mode*, so that the auto­matic controls for the air suspension* do
not make it more difficult to lift the vehicle
with the jack*<=>
page 360 .
Removing the caps
Fig .. 276 Wheel: wheel bo lts wi th caps
.,. Slide the plastic clip (from the vehicle tool kit)
onto the cap until it engages
<=> fig. 276 .
.,. Remove the cap with the plastic clip .
Loosening the wheel bolts
Fig. 277 Whee l: loosen ing the w heel bo lt
360
.,. Slide the wheel wrench (from the vehicle tool
kit) all the way onto the wheel bolt .
.,. Turn the wheel bolt approximately one turn to
the left -arrow- . To reach the required torque,
hold the end of the wheel wrench. lfthe wheel
bolt will not loosen, press carefully on the
wheel wrench with your foot . H old onto the ve­
hicle securely whi le during this and make sure
your stance is stable.
_&. WARNING
To reduce the risk of an accident, only loosen
the wheel bolts gently (one turn) before rais ­
ing the vehicle with the vehicle jack*.
Raising the vehicle
Fig. 278 S ill panels: markings
Fig. 279 Sill: positi on ing the vehicle jack
.,. Place the veh icle jack* (vehicle tool kit) on a
firm s urface. Use a flat, stable support if neces ­
sary . On a slippery surface such as ti le, you
should use a non-slip pad (such as a rubber
mat)
c> .&_ .
.,. Find the marking on the sill that is closest to
the tire that wi ll be changed<=>
fig. 278. Behind
the mark ing, there is a lifting point o n the side
sill for the vehicle jack* . ..,.

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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

Emergency assistance
vehicle tool kit) ¢ fig. 280 and place it on a
clean surface.
• Then install the alignment pin (from the vehicle
tool kit) by hand into the empty wheel bolt hole
¢fig. 2a11>.
• Remove the rest of the wheel bolts .
• Remove the wheel ¢@ . The al ignment pi n re-
mains in the hole while doing this .
Install a wheel
Read the direct ions on c> page 362 when instal­
ling unid irectional tires.
• Slide the wheel on over the alignment pin¢@ .
• Install the wheel bolts and tighten gently using
the hex socket.
• Remove the alignment pin and also tighten the
remaining wheel bolt.
• Carefully lower the vehicle using the vehicle
jack* .
• Tighte n the wheel bolts in a diagona l pattern
u sin g the wheel wrench.
The whee l bolts must be clean and loosen/tight­
en easi ly. Check the contact su rfaces for the
wheel and hub . Contaminants on these surfaces
m ust be removed before installing the wheel.
A WARNING
Never use the hex socket in the screwdriver
hand le or the hex socket wrench with the
ratchet to loosen or tighten the wheel bolts.
You will not attain the required tightening
specification, which wi ll increase the risk of an
accident .
@ Note
When removing or installing the whee l, the
r im could hit the brake rotor and damage the
rotor. Work carefu lly and have a second per­
son help you.
-
1
> A pp lies to vehicles with cer amic br ake rot ors*: use a sec ­
on d alignment pin * (fro m th e ve hicle t ool kit) for th e low ­
e st hole ac co rding t o the steps de scribed for the first
al ig nm ent pin.
362
(D Tips
-When mounting tires with unidirectional
tread design
make sure the tread pattern is
pointed the right way
c> page 362.
-Th e wheel bolts should be clean and easy to
turn. Check for dirt and corrosion on the
mating surfaces of both the wheel and the
hub. Remove all dirt from these surfaces be­
fore remounting the wheel.
Unidirectional tires
A un idirectional tire profi le is identified by arrows
that point in the running direct ion on the tire
s idewa ll. You must always adhere to the speci­
fied running direction. This is necessary ensure
t h e tire's optimum performance in regard to ad­
hesion, running noise, friction and hydroplaning .
To benefit fully from the advantages of the uni­
directional tire design, you should rep lace fau lty
tires as soon as possible and restore the correct
running direction on all of the tires.
Finishing
• Reinstall the caps on the wheel bolts if neces­
sary.
• Store the veh icle tool k it in its designated
place .
• Store the replaced tire securely in the luggage
compa rtment
¢page 257.
• Check the tire pressure on the insta lled wheel
as soon as possible.
• Cor rect the tire pressure and store it in the In­
fotainment system ¢
page 349.
• The wheel bolt tightening specification must be
120 ft lbs (160 Nm). Check it as soon as possi­
ble with a torque wrench. Drive carefully until
then .
• Have the faulty wheel replaced as quickly as
possible .

Emergency situations
@ Tips
The discharged battery must be properly con­
nected to the vehicle's electrical system .
When jump starting or charging the battery,
never connect the negative ground cable to
the battery negative post because the battery
manager system must be able to detect the
battery's state of charge. Always connect the
negat ive g round cable to the negative ground
post of the battery manager control unit.
Using the jump start
cable
Both jump start cables must be connected in the
correct order!
Fig. 288 E ngin e compartme nt: co nn ectors for jump start
cables and a charger
Fig. 289 Jump starting using a battery in anot her vehicle:
@-pro vidi ng current, @-dra ined
The procedure described below for connecting
jumper cables is intended to provide a jump start
for your vehicle.
Vehicle with discharged battery
... Turn off lights and accessories, move automatic
transm ission lever to "N" (Neutral) or "P" (Pa rk)
and set parking bra ke.
370
Connecting the positive cable (red) to the
positive terminal
... Open the red cover on the positive terminal
c:::>fig. 288.
1. Secure one end of the pos itive cable (red) to
the jump start pin
c:::> fig. 289 (J) (pin under
the red cover = "pos itive") on the veh icle that
needs to be started @.
2. Secure the other end of the positive cable
(red) to the posit ive terminal @on the bat­
tery provid ing the cur rent @.
Connecting the negative cable (black) to the
negative terminal
3. Secure one end of the negative cable (black)
to the negative terminal @ on the battery
that is providing the current @.
4. Secure the other end of the negative cable
(black) to the jump start pin@ (hex head pin
= "negative") on the vehicle that needs to be
started @.
Starting the engine
... Sta rt the eng ine on the vehicle providing the
jump start @and let it run at idle .
... Now start the engine on the vehicle with the
drained battery @.
... If the engine does not start, stop the starting
procedure after 10 seconds and then repeat it
after approx imately 30 seconds.
"' Once the engine w it h the drained vehicle bat­
tery has been started, remove the cables in the
reverse order from the way they were install ed.
"' Close the red cover on the positive terminal.
The battery is vented to the outside to prevent
gases from enter ing the vehicle inter ior. Make
sure th at the j umper clamps are well connected
with their
metal ports in full contact with the
battery terminals .
A WARNING
-To avoid serious personal injury and damage
to the vehicle, heed all warnings and instruc­
tions of the jumper cable manufacturer. If in
doubt, call for road service .
- Jumper cables must be long enough so that
the vehicles do not touch. ..,.