2018 AUDI Q7 radiator

Drivin g
Start /Stop syst em *
See the informat io n in q page 79 , Start/Stop
syst em .
A WARNING
To reduce the risk of poisoning, never allow
the engine to run in confined spaces .
(LlJ) Note
Avoid high eng ine speed, full throttle, a nd
heavy engine load if the engine has not
reached operating temperature yet. You could
damage the engine .
@ For the sake of the environment
Do not let the engine run while parked to
warm up . Begin driving immediately. This re­
duces unnecessary emissions .
(D Tips
-Some noise after s tarting the engine is nor ­
mal and is no ca use fo r concern .
- If yo u leave the vehicle with t he ignit ion
switched on, the ignition will switc h off af ­
ter a certain amo unt of time. Make s ure that
e lectr ica l equipment s uch as the exterior
li ghts are switched off.
Starting the engine
"' Bring the vehicle to a fu ll stop .
"' Press the I STAR T
EN GI NE ST OPI button
r::!) page 77 , fig . 81 .
Emergency off function*
-
If it is abso lutely necessary, the engine can also
be turned off while driv ing at speeds starting at
4 mph ( 7 km/h) . To switch the eng ine off , press
the lSTART
E NGINE STOPlbutto n tw ice in a row
briefly o r press and hold fo r lo nger than two sec­
onds.
A WARNING
- Never turn off the engine befo re the ve hicle
has come to a comp lete stop . The full func ­
tion of the brake booster and the powe r
steering is not guaranteed. Yo u must use
78
more force to turn or brake . Because you
cannot steer and brake as you usually
wou ld, this could lead to accidents and seri­
ous injuries .
- If you leave the vehicle, sw itch the ignition
off and take the ve hicle key with you. Other­
wise, the eng ine could be started or electr i­
cal equipment such as the powe r windows
could be ope rated . This can lead to se rious
lnJ Ury.
- For safety reasons, always park the vehicle
w it h the sele ctor lever in the "P " pos it io n.
Othe rw ise, there is the risk that t he veh icle
co uld r oll uninte ntionally .
(0} Note
If the engine has been unde r heavy load for
an extended pe riod of time, heat builds up in
the eng ine com partmen t afte r th e e ng ine is
swi tched o ff and the re is a ris k of damag ing
the eng ine. For t his reason, let the engine run
for at id le for approximate ly two min utes be ­
fo re shutting it off .
(D Tips
For up to 10 minutes a fter stopping the en ­
gine, t he radiator fan may turn on again auto ­
matically or it may continue to r un (even if
the ign it ion is switched off) fo r the following
reasons :
- The coo lant temperature is increas ing due
to trapped heat.
- If the eng ine is wa rm and the eng ine com ­
partment a lso heats up from strong sun­
light.
- Applies to: vehicles with particulate filter:
The emissions control system is heated
throug h the regeneration process, even if
the engine has not reached its operat ing
tempe ra ture yet .
Messages
Engine running . Warning! Turn off ignition be -
fore leaving vehicle
II>-

Drivin g
Aft er d riv ing offroad
- After dr iv ing offroad, remove branches and
other debris from the radiator gri lle, under­
body, and whee ls. Look especia lly for foreign
obj ects (such as stones) that may be stuck in
the tire tread.
- Clean th e ve hicle body and underbody and in ­
spect the vehicle for possib le damage.
- Clean t he windows, headlights, tail lights and
the license plate if they are dirty.
- Perform a brake test (especia lly after driving
through water) .
A WARNING
-Be especia lly cautious and aware when driv­
ing under d ifficult conditions and when off­
road. Vehicle damage and injuries may occur
when driving at excessively high speeds or
with incorrect dr iv ing ma neuvers .
- Always adjust your speed and driving style
to the roads, terra in, traffic and weather
cond it ions. Dr ive espec ially slowly if there is
low v is ib ility when offroad.
- Please note that the wheels can spin more
and the vehicle can swerve when in off road
mode, especially whe n the road is s lippery
o r has loose su rface material.
- Driv ing stab ility is reduced w hen in off road
mode.
@ For the sake of the environment
Avoid harming the environment and show
cons iderat io n for nature .
(D Tips
Only dr ive where it is permitted and always
stay on the provided roads and paths .
Explanation of technical terms
The follow ing data is based on ideal cond itions .
The va lues may va ry depe nd ing on the load ,
g ro und compos it io n and the environment. The
d river is therefore responsib le for decid ing
whether a vehicle can handle a specific situation
¢ .&_ .
84
Incline angle
A rising diffe re nce in al titude (i ncline) on a 109
yard ( 100 m) stretch is given in pe rcentage or de­
grees . Data indicating whet her the vehicle can
drive up an incline by itse lf (dependent on the
road surface and the engine power among other
factors). Maximum permitted incline angle: 31
°
Gr ound cl ea rance
The distance between the road surface and the
l owest point on the vehicle underbody.
- Vehicles with steel su spen sion : ground clear­
ance: 8.3 in (210 mm)
- Vehicl es with air su spen sion* : maximum
gro und clea rance : 9. 7 in (245 mm)
A WARNING
E xceeding the spec ified maximum va lues can
l ead to severe persona l injuries or vehicle
damage .
- All data was collected on flat, firm, non­ slippery road s urfaces and under dry weath ­
er conditions .
- Ideal conditions do not app ly to offroad
driving . Never go all the way up to the maxi ­
m um val ues, b ut rather a lways leave a safe­
ty margin.
Messages
There is only one motto when driving in difficult
conditions and off road: drive slowly and with
caution !
Observe the following when driving on unpaved
roads:
.,. Onl y dr ive in ter rai n t hat is suitable fo r the ve ­
hicle and yo ur driv ing ability . Never take any
unnecessa ry risks!
.,. Drive s low ly and carefu lly .
.,. Pay attent ion to the
g round clear ance of your
veh icle.
.,. Activate the
offroad mode as needed
¢ page 143.
.,. Use the hill de scent as sist when d riving down
steep hills ¢
page 144. .,..

Parking syste m s
Parking systems
General information
A pplies to: ve hicles w ith a rea r parking sys te m /parking sys­
tem p lus/rearv iew camera/peripheral cameras
Depending on your vehicle 's equipment , various
parking aids will help you when parking and ma­
ne uvering.
The
rea r pa rki ng sys te m is an aud ible parking a id
that warns you of obstacles
behind the vehicle
¢ page 133.
The parki ng sys te m plu s assists you when park ­
ing by aud ibly and visually indicating objects de­
tected
in front of and behind the veh icle
¢ page 133.
The rea rv iew ca mera shows the area behind the
veh icle in the Infotainment system d isplay . The
lines in the rearv iew camera image he lp you to
pa rk or maneuve r
¢page 134.
The pe riph eral ca meras give various views to
help you when parking or maneuvering
¢ page 137 . The parking system plus functions
are also available ¢
page 133.
_& WARNING
-Always look for t raff ic and check the area
around your vehicle by looking at it direct ly
as well. The parking system cannot replace
the driver's attention . The driver is always
responsib le when entering or leaving a park­
ing space and during similar maneuvers.
- Please note that some surfaces, such as
clothing, are not detected by the system.
-
-Sensors and cameras have blind spots in
which people and objects cannot be detect­
ed . Be especially caut ious of small children
and animals.
- Always keep your eyes on the vehicle 's sur­
round ings, using the rearview mirror as
well.
- The sensors can be displaced by impacts or
damage to the radiator gr ille, bumper,
wheel housing and the underbody . The park ­
ing system may be impa ired as a result .
Have a n author ized Audi dealer or author-
132
ized Audi Service Facility check their func ­
tion .
@ Note
-Some objects are not detected or disp layed
by the system under certain circumstances:
- objects such as barrier chains, trailer draw
bars, vertical poles or fences
- objects above the sensors such as wall ex­
tensions
- objects with certain surfaces or structures
such as cha in link fences or powder snow
- If you continue driving closer to a low ob­
ject, it may disappear from the sensor range . Note that you will no longer be
warned about th is obstacle .
- Keep enough distance from the curb to re­
duce the risk of damage to the rims .
(D Tips
-The system may provide a warning even
though there are no obstacles in the cover­
age area in some situations, such as :
- certa in road s urfaces or whe n the re is tall
grass
- externa l ult rasonic sources such as from
cleaning vehicles
- in heavy rain, snow, or th ick vehicle ex­
ha ust
- We recommend that you practice par king in
a traffic -free location o r parking lot to be­
come familiar with the system . When doing
this, there shou ld be good light and weath­
er conditions.
- You can change the vo lume of the signa ls
and the display ¢
page 140.
-Please refer to the instructions for towing a
trai ler located in
¢ page 141.
-What appea rs in the infotainment d isplay is
somewhat time -de layed.
- T he sensors m ust be kept clean and free of
snow and ice for the parking aid to operate .

Checking and Filling
If the indicator light does not turn off, drive im­
mediately to an authorized Audi dea ler or author­
ized Audi Service Fac ility to have the malfunction
corrected.
A WARNING
The temperature of the exhaust system is
high, both whe n driving and after stopping
the engine .
- Never touch the exhaust ta il pipes once they
have become hot. This could result in burns .
- Do not park you r vehicle over flammable
materials such as g rass or leaves because
the h igh temperat ure of the emiss ions con­
t rol sys tem cou ld start a f ire.
- Do not apply underbody p rotectant in the
exha ust system a rea, because this increases
the risk of fire.
- Applies to: vehicles wi th diesel particulate
filte r: always adjus t your speed to the
weathe r, road, te rra in and traffic con ditio ns
dur ing diesel partic ulate fi lter regene ration.
Yo u should never disobey tra ffic laws in or­
der to fo llow dr iv ing recommendations.
(D Tips
Applies to: ve hicles with diesel particulate filter
- Due to the high temperatures that occur
d uring diesel pa rticu late filter regenerat ion,
the radiator fan may continue runn ing after
the engine stops, even if the engine did not reach its operat ing temperatu re.
- Noises, odors and increased speeds may oc­
cur d uring the regeneration.
- Always use the co rrect engine oil and fuel to
ens ure that the serv ice life of the d iesel par­
ticulate filter is not reduced.
318
On Board Diagnostic
System (OBD)
The On-Board Diagnostic System monitors the
engine and transmission components that influ­
ence emissions.
Fig. 260 Footwe ll on left s ide of t he ve hicle : con necti on
port fo r the O n-Boa rd D iagnostic Sys tem (OBD)
On -Board Diagnostic System
Engine data can be read out a t the On-Board Di­
agnost ic System connection port using a specia l
testing device
c::> fig. 260 .
Indicator light
If thP ¢'4 ind icator light blink s or turns on , the re
i s a ma lfunction that is causing poor emissions
quality a nd that cou ld damage the catalytic con­
verter .
D rive slowly to an authorized Audi dealer or au­
thorized Audi Serv ice Facility to have the mal­
funct ion corrected .
The ind icator light can a lso turn on if the fuel fill­
er cap is not closed correctly
c::> page 312 .
A WARNING
Incorrect use of the co nnect ion port for the
On-Board D iagnost ic System can cause mal­
f u nct ions, wh ich can t hen resul t in accidents
and se rious inj uries.
- Only allow an a utho rized Aud i dea le r or au­
thorized A udi Se rvice Fa cility to read out the
e ngine da ta.
-

Cl a:, ...... N
" N ...... 0
0
::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

a co ...... N r--. N ...... 0
0
: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
& 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

Fuses and bulbs
Fuse panel@ (brown) Fuse panel© (black)
No. Equipment
2
Mass airflow sensor, camshaft adjust-
ment, charge air cooler pump
10
Windshie ld washer system/headlight
washer system
11 L eft rea r door control module
3 Exhaust doors, fuel injectors, radiator inlet
4 Vacuum pump, hot water p ump, particu-
late sensor, biodiesel sensor
Fuse panel @ (brown)
No. Equipment
5 Brake light sensor
6 Engine valves, camshaft adjustment Seat ventilation, seat heating, rearview
1 mirror, climate control system, rear cli-
mate control system controls
7
Heated oxygen sensor, mass airflow sen-2 Gateway, climate control system
sor
8
Water pump, high pressure pump, high
pressure regulator va lve
9 Hot water pump
10
Oil pressure sensor, oil temperature sen-
sor
3 Sound actuator/exhaust sound tuning
4 Transmission heat ing valve
5 Engin e start
8 Night vision assist, HomeLink
9 Adaptive c ruise control
11 Clutch pedal position sensor 11 Video camera
12 Engine valves 12 Matrix LED headlight/right LED headlight
13 Radiator fan 13 Matrix LED headlight/left LED headlight
14 Fuel injectors 14 Rear window wipe r
15 Ignition coils Fuse panel © (red)
16 Fuel pump No. Equipment
Fuse panel @ (red)
1 Ant i-theft alarm system
No. Equipment 2 Engine control modu le
1 Ignition coils 3 Lumbar support
2 Engine va lves
5 En gine mount
7 Instrument panel
8 Climate control system (blower) Automatic transmission se
lector mecha-
4
nism
5 H orn
6 Electromechanical parking brake
7 Gateway control module
Fuse panel © (black) 8 Interior headliner lights
No. Equipment 10 Airbag control module
1 Front seat heating 11 Electronic Stab ilizat ion Control (ESC)
2 Windshield wipers 12 Diagnostic connector , light/rain sensor
3 Left headlight electronics 13 Climate control system
4 Panorama glass roof 14 Right front door control module
5 Left front door control module 15 A/C compressor
6 Sockets
7 Right rear door contro l modu le
9 Right headl ight electronics
366