2015 AUDI Q3 engine

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Brake fluid
Checking brake fluid level
The brake fluid level can be checked with a
quick glance.
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Fi g. 149 Eng ine compartment: Cover on the brake flu ­
id reservoir
Before you check anything in the engine com­
partment,
a lwa ys read and heed all WARN­
ING S c:> .&.. in Working in the engine compart­
ment on page 179 .
~ Read the brake fluid level from the brake
fluid reservoir
c:> fig. 149, <=> page 181,
fig . 145.
The brake flu id level must be be­
tween the "MIN" and "MAX" markings.
The brake fluid reservoir is located at the rear
partition of the engine compartment on the
left side <::;>
page 181 .
The fluid level may drop slightly after some
time due to the automatic adjustment of the
brake pads . This is not cause for alarm .
If the brake fluid level falls
considerably be­
low the "MIN" mark, the brake warning/indi­
cator light (USA models: ., Canada models:
• will come on
<::;> page 13. Do not continue
to operate the vehicle . The complete brake
system should be thorough ly checked by an
author ized Audi dealer or qua lified workshop
and the cause corrected.
If the brake fluid lev­
e l is too low, the brake warning/indicator ligh t
will illuminate . Contact an authorized A ud i
dealer
immediately.
@ Tips
The brake f luid reservoir is located under­
neath the cover .
Checking and fillin g 189
Changing brake fluid
Have the brake fluid changed by on experi­
enced technician.
Brake fluid absorbs moisture from the air. If
the water content in the brake fluid is too
high, corrosion in the brake system may result
after a period of time . The boiling point of the
brake flu id will also dec rease considerably and
decrease braking pe rformance.
Therefore, the brake fluid must be changed
ev ery two years. Always use new brake flu id
which conforms to Federal Motor Vehicle
Standard "F MVSS 116 DOT 4".
The brake fluid reservo ir can be d iff icult to
reach, the refore, we recommend that you
have the brake fluid changed by your author­
i zed
Audi d ealer. Your dealer has t he correct
tools, the right brake fl uid and t he know-how
to do this for you .
A WARNING -.
-Brake fluid is poisonous . It must be stor­
ed only in the closed original container
out of the reach of children!
- Brake failure can resu lt from o ld or inap­
propriate brake f luid. Observe these pre­
cautions:
- Use only brake fluid that meets SAE
spe cificat ion
J 1 7 03 and conforms to
Federa l Moto r Ve hicl e Standard 116.
Always check with yo ur authorized Audi
dealer to make sure yo u are using the
correct bra ke fluid. The correct type of
brake f luid is also indicated on the
brake f luid reservoir.
- The brake fluid must be new. Heavy use
of the brakes can cause a vapor lock if
the brake fluid is left in the system too
l ong . This can seriously affect the effi­
c iency of the brakes as well as your
safety. This cou ld resu lt in an accident.
(D Note
Brake fluid will damage the paint of your
vehicle .

190 Checking and filling
@ For the sake of the environment
Because of the problem of proper disposa l
of brake flu id as we ll as the special tools
req uired and the necessary expert ise, we
recommend that you have the b rake fluid
changed by your author ized Audi dealer.
Battery
General information
Unde r normal operating conditions, the bat ­
tery in your A udi does not need any mainte ­
nance. With
high outside temperatures or
long daily dr ives we recommend that you have
the elect ro lyte level checked by an authorized
Aud i dea ler o r qualified workshop . The elec­
trolyte leve l sho uld a lso be c hecked each t ime
the battery is c harged
c::> page 192.
H ave the battery checked when you take your
ve hicle in for service . Yo u are well adv ised to
replace a bat tery that is older tha n 5 yea rs .
W ith certa in types of a irbag deployment, t he
battery is d isconnected from the vehicle elec­
tr ica l system fo r safety reasons
c::> & in Re ­
pair, core and disposal of the airbags on
page 126.
Disconnecting the battery terminals
Some veh icle functions (power w indow regu­
lato rs, for example) are lost if the battery ter­
m inals a re discon nected. These functions have
to be re lea rned after the batte ry terminals a re
c onnec ted agai n. T o prevent this, the battery
should o nly be di sconnec ted from the vehicle
e lec trica l syste m when absolu tely necess ary
for repairs.
Vehicles not driven for long periods
I f yo u do not dr ive you r vehicle over a pe riod
of severa l days or weeks, elec trical co m po­
n en ts are gr adually cu t back o r swi tched off .
T his reduces energy cons ump tion and main ­
tains sta rting capab ility over a lon ger perio d
c::> page 159 .
Some o f the conven ien ce f unct ions m ay no t
ope rate, su ch as the in ter ior lights o r the power seat adjus
tment . The convenience
funct ions wi ll be available again when yo u
tu rn on the ign ition and sta rt t he engine .
Winter operation
During the w inte r mon th s, batt ery c apac ity
tends to dec rease as tempera tures drop . This
is beca use more power is a lso consumed w hile
starting, and the headlights, rear win dow de­
f ogger, etc., are used more often.
Avoid unnecessa ry powe r consumpt ion, pa r­
ticu lar ly in ci ty traffic o r when traveling only
sho rt distances . Let yo ur autho rized A udi
dealer check the capacity of the vehicle bat ­
tery before w inter sets in
<=:> page 192. A well
charged battery will not on ly prevent starting
problems when the weather is cold, but w ill
also last longer .
@ Tips
If your vehicle is left standing for seve ral
w eeks at extremely low temperatures, the
vehicle battery s hou ld be removed and
s tored w her e it w ill not freeze. This will
preve nt i t fr om be ing d amaged and having
t o be repla ced .
Working on the battery
Be especially careful when working on or near
the battery.
T he battery is loc ated in the luggage compar t­
ment under the floo r. B efo re you che ck any­
t hi ng in the luggage co mpartmen t,
read and
heed all WARNINGS
c::> .&_ .
Always heed t he safety warnings , when work­
i ng on the veh icle ba tte ry or the vehicle e le c­
t ric al sys tem to p reven t inju ry.
The following WARNINGS are very
important when working on the battery:
Always heed the following WARNING SYM ·
BOLS and safety precautions when working
on the battery .
®
Always wear eye protection .

192 Checking and filling
(D Note
- Do not disconnect the vehicle battery
when the ignition is switched on or when
the engine is running, otherwise, you will
damage e lectronic components i n the
electrical system.
- If your vehicle is going to stand for a
long period of time without being driven,
protect t he battery from "freezing", oth­
e rwise it w ill be damaged and w ill then
have t o be repla ced.
Battery charging
Starting the engine requires a well charged
battery.
Fig. 150 Eng ine compartment: Connectors for charger
a nd jumper cables
Always read and heed all WARNINGS be low
c::> & and c::> & in Working on the battery on
page 191 .
•Turnoff th e ignit ion and all electrical con­
sumers.
• Make sure the area is well vent ilated when
yo u cha rge the battery .
• Ope n the engi ne hood
c::> page 179.
• Open the cove r o n the pos it ive pole
c::> fig. 150.
• Connect the charger connectors according to
the instructions to the
jump start bolts.
(Bo lts under the cover = "positive", Bolts
with hex head= "negative").
• Only now plug the mains lead for the charg­
i ng equipment into the wall outlet and turn
i t on
c::> .&,. .
• Make sure the charging rate is not over
30 amps /14.8 Volt .
• When the battery is fully charged: Turn the
charging equipment off and remove the
mains lead from the wall out let.
• Now remove the clamps for the charging
equ ipment.
.,. Close the cover on the positive pole .
.,. Close the hood
c::> page 179 .
A discharged battery can freeze at tempera­
tures of only 32 °F (0 °C). Allow a frozen bat­
tery to thaw comp letely before attempting to
charge i t
c::> .&.. However, we recommend not
u sing a thawed batte ry aga in because the ba t­
te ry casing can be c racked due to i ce fo rm a­
t io n an d can leak battery a cid.
Battery charging (Maximum charging rate
of
30 amps/14.8 Volt)
When charg ing at low vo lta ges (e.g. wi th a
trickle charger ), the ba tte ry cables do not
have to be disconnected f irs t. T he bat tery
caps should
not be opened when charg ing a
battery .
It is no t necessa ry to remove the b attery from
the luggage compartmen t.
Fast charging the battery (charging rate
above 14 .8 Volts)
F or te chnica l re asons do not use a batt ery
ch arger that uses voltage greater than
14 .8
Volts to c harge yo ur vehicle's battery.
A WARNING
.------
C harging a battery can be dangero us.
-A lways follow the operati ng instr uctions
p rovi ded by the battery charger manu ­
facturer when charg ing your battery.
- Never charge a frozen batte ry . It may ex­
p lode because of gas trapped in the ice.
Allow a frozen battery to thaw out f irst.
- Do not reuse batteries w hich were fro­
zen. The battery housing may have
cracked and weakened w hen the battery
froze .
- Charge the battery in a we ll ventilated
area. Keep away from open flame or elec­
tr ica l spark. Do not s moke. Hydrogen gas
genera ted by t he battery is explos ive .

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-To r educe the danger of explosion, never
connect or disconnect charger cables
while the charger is operating.
- Fast charg ing a battery is dangerous and
should only be attempted by a compe­
tent technician w ith the proper equip­
ment .
- Battery acid that may spill during charg­
ing should be washed
off with a solution
of warm water and baking soda to neu ­
t ralize the acid .
Never use a fast charger as a booster to
start the engine . This will seriously dam­
age sensitive elect ronic components, such
as control units, relays, radio, etc. , as we ll
as t he battery charger.
Battery replacement
The new battery must have the same specifi­
cations and dimensions as the original equip­
ment battery.
Intell igent energy management in your veh i­
cle is respons ible for d istr ibuting the e lectr i­
cal energy throughout you r vehicle
¢ page 159. The inte lligen t en ergy ma nage­
men t system w ill keep the engine b attery
charged be tter then vehicles w ithout this sys­
tem . To make sure t he additional e lectrica l e n­
ergy is available once again after you have
changed t he battery, we recommend that you
install ba tteries of the same type and man u­
facture only (the same as t hose installed at
the t ime your vehicle was delivered) . Specifi­
cations a re listed on the battery hous ing . You r
author ized Audi dealer must code the bat tery
in the energy management system to enable
you to use the energy management functions
correctly after rep lac ing the battery .
I f it is not poss ible to use a battery of this
type, the new bat tery mus t have the s ame ca­
pacity, vo ltage ( 12-volts), ampe rage, con­
struction and pl ug sea ling.
Checkin g and fillin g 193
When installing the battery, make su re the ig ­
nition and a ll electrical consume rs a re turned
off.
Q) Note
M ake sure the ven tilat ion hose on the side
of the batte ry is connecte d, otherwise
fumes o r batte ry acid can leak out .
@ For the sake of the environment
Because o f the p rob lem of proper disposal
of a battery, we recommen d your author­
i zed A udi dealer change the battery for
you. Batteries contain sulfur ic acid and
l ead and must always be disposed of prop­
erly in comp liance with a ll environmental
r egula tions . Dispos ing of vehicle batter ies
i mprope rly is v ery dange rous to th e envi­
r o nmen t.
Windshield washer
container
Fi g. 151 En gin e co mpa rtm en t: Cove r o n th e wind­
s hi eld was her fluid conta in e r
The washer fluid conta iner is mar ked w ith the
symbol
O on its cap ¢ fig . 151, ¢page 181,
fig . 145.
.. Before yo u check any thing in t he engine
compa rtment,
alwa ys re ad and heed all
WARNINGS ¢ & in Working in the engine
compartment on page 179 .
.. Lift the fi ller cap tongue to add washer flu ­
id. You can f ill the container to t he top.
.. Press the cap back o nto the fi lle r neck after
filling the co nta iner .
You can find the reservo ir
capacity in the table
in
¢ page 235. 111>
•
•

194 Checking and filling
Clean water sho uld be used when filling up. If
possible, use soft water to prevent scaling on
the washer jets. Always add a glass cleaner
solut ion (w ith frost protection in the w inter) .
Do not mix engine coolant antifreeze or
any other additives to fill up the wind­
shie ld washer reservoir.

200 Tires and wheels
you have stored. The system does not recog­
nize the load condition of your vehicle.
The effectiveness of the tire pressure monito r­
ing system* will be impaired if you store nor­
mal load pressures but then operate the vehi ­
cle at its maximum load¢.&. .
See the illustration¢
fig. 152 for the location
of the label on driver's side 8-pillar (color of
the actua l label and exact location on the ve­
hicle wi ll vary slightly).
Note that the following table is accurate at
the time of going to press and is subject to
Model Tire designation
Engine
Q3: 235/50
Rl8 97H
2.0 liter All Season
4 -cylinder
235/50 Rl8 97V
All Season
255/40 Rl9 96Y
High Performan ce
255/35 R20 97Y xl
High performance
change. In the event of discrepancies, the tir e
pressure label is located on the driver's side 8-
pillar always takes precedence.
T he table below lists the recommended cold
ti re inflation pressures for the Audi mode l
covered by your Owner's Literature at the vehi­
cle's capacity weight and the t ire sizes instal­
l ed on the respective models as original
equipment, or as a factory option.
Tire pressure
normal load condition full load condition (up to 3 occupants)
front rear front rear
PSI kPA PSI kPA PSI kPA PSI kPA
33 220 33 220 34 230 36 250
33 220 33 220 34 230 36 250
34 230 34
230 44
300 47
320
34 230 34 230 44 300 47 320
xl= reinforced or extra load tire. It may also appear as XL, EXTRA LOAD, or RF on the tire side-
wall.
The correct tire pressure for the spare wheel is
located on a label on the driver's side 8 -pillar.
Because technical changes may be made to
vehi cle equipment dur ing the model year, al­
ways compare the tire size designation on the
tire pressure labe l on your vehicle with the
tires on your vehicle . Make sure that the tire
size information on the veh icle label is the
same as the size of the t ires on the vehicle.
This is especially important if the vehicle be­
longs to someone else or you bought the vehi­
cle with different rims/tires or you bought the
vehicle as a previously owned vehicle.
Remember, your safety and that of your pas­
sengers also depends on mak ing sure that
load limits are not exceeded . Vehicle load in- eludes
everybody and everything in and on the
vehicle. These load limits are technically refer­
red to as the vehicle's Gross Vehicle Weight
Rat ing ("GVWR"). The Gross Axle We ight Rat­
ing ("GAWR") is the maximum load that can
be applied at each of the vehicle's two axles.
The Gross Vehicle Weight Rating and the
Gross Axle Weight Rating are listed on the
safety compliance sticker label located on the
dr ive r's side 8-pillar. The tire pressure labe l on
you r Audi lists the max imum combined
weight of all of the occupants and luggage or
other cargo that the ve hicle can carry. For the
location of the tire pressure label
~fig . 152. .,..

216 What do I do now?
What do I do now?
General information
.. Park the vehicle as far as possible from mov­
ing traffic in the event of a flat tire. In the
event of a flat tire, park the vehicle on a lev­
el surface . It you are on a steep incline, be
especially careful.
.. Set the parking brake .
.. Switch the emergency flashers on .
.. Put on a reflective vest, if ava ilable .
.. Set up the warning triang le, if available .
.. Have the passengers exit the vehicle. They
should move to a safe place, for example
behind a guard rai l.
A WARNING
Pay attention to the steps above. They are
for your protection and the for the safety
of other drivers.
A WARNING
Improper use of the vehicle jack can cause
serious personal injuries.
- Never use the screw driver hex head to
tighten wheel bolts, since the bolts can­
not attain the necessary tightening tor­
que if you use the hex head, potentially
causing an accident.
- The factory-suppl ied jack is intended on­
ly for your vehicle model. Under no cir­
cumstances should it be used to lift
heavy vehicles or other loads; you risk in­
jur ing yourself.
- Never start the engine when the vehicle
is raised, which could cause an accident.
- Support the vehicle securely with appro­
priate stands if work is to be performed
underneath the vehicle; otherwise, there
is a potential risk for injury.
- Never use the jack supplied with your
Audi on another vehicle, particularly on a
heavier one . The jack is only suitable for
use on the vehicle it came with .
Vehicle tool kit with
lifting jack
Fig. 158 Under the cargo floo r cover : Too l kit , auxiliary
too l and jack
The veh icle tool kit is stored under the cargo
floor cover behind the seat backrest
Q fig . 158 .
The vehicle tool kit includes :
- Hook for removing wheel covers
- Alig nment pin for changing the wheel
- Screwdriver with reversible blade
- Reversible bit (reversible Torx bit for chang-
ing light bulbs)
- Jack
- Auxil iary tool for selector lever emergency
release
- Lug wrench
-Towing eye
Some of the vehicle items listed above are
provided on certain models only or are option­
al extras.
Before returning the jack to its place , retract
the jack arm fully .
A WARNING
-Never use the screw driver hex head to
tighten wheel bolts, since the bolts can­
not attain the necessary tighten ing tor­
que if you use the hex head, potentially
causing an accident.
- The factory-supplied jack is intended on­
ly for your vehicle model. Under no cir­
cumstances should it be used to lift
heavy veh icles or other loads; you risk in-
-
juring yourself. ~

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-Never start the engine when the veh icle
is raised, which cou ld cause an accident.
- Support the vehicle secure ly with appro­
priate stands if work is to be performed
underneath the vehicle; otherwise, there
is a potential risk for injury.
Folding chocks
Applies to vehicles: with fold ing chocks
The folding chocks are part of the on board
tool kit.
------ - --
Fi g. 159 Opening foldi ng chocks
To use the chocks, you fi rst have to ra ise the
suppor t plate~
fig . 159 CD and then insert
the locking p late with the two "tabs" into the
e longated holes in the base plate@~&. .
&_ WARNING
-The chock cannot fulfil its function and
may lose its stability if the "tabs" on the
support plate are not inserted correctly into the elongated holes in the base
plate. If t his happens , the veh icle may
sta rt to move whi le a wheel is being
changed.
- Never use the folding chocks if they are
damaged or if they have not been assem­
bled correct ly.
What do I d o now ? 217
Removing bass box
App lies to vehicles: wit h bass box
Before the spare tire can be taken out, the
bass box must be removed.
Fi g. 160 Spa re whee l well: Bass box
Removing bass box
.,. Lift up the cargo floor us ing the handle .
.,. Squeeze the locking tabs
CD ~ fig. 160 of
the connector .
.,. Disconnec t the conne ctor @and place the
le ad to one side .
.. Tur n the large screw counter-clockwise .
.. Carefully remove the bass box.
Installing bass box
.,. Carefully place the bass box in the wh eel.
The ins cription "FRO NT' ' on the bas s box
m ust face forward .
.. Reco nnect the connector that was removed .
.. Secure the bass box with the large screw.
.. Fold the cargo floor back down.
Space-saving spare tire
(compact spare tire)
.'II If Ill llf 1111 11
Fig . 16 1 Lu ggage compartme nt: Spa re tire
T he spare tire is on ly in tended for tempo rary
u se over short distances. After use, have it ...,