2018 AUDI Q3 battery

Assistance systems
Switching on and off
Applies to: vehicles w ith Aud i s ide ass ist
F ig. 83 Driver's door : side ass ist bu tto n
.,. Press the button to switch the system on and
off <=>
& in General information on page 79.
The LED in the button turns on when side assist
is sw itched on.
Adjusting the display brightness
Applies to: ve hicles w ith Aud i side ass is t
The display brightness can be adjusted in the In ­
fotainment system .
.,. Se lect : the ICARI function button > (Car) Sys­
tems *
control button > Driver assist > Audi
side ass ist .
The display brightness adjusts automatically to
the br ightness of the surroundings, both in the
i n formation and in the warning stage. In very
dark or very br ight surroundings, the automat ic
adjustment will set the d isplay to the minimum
or maximum level. In such cases, you may notice
no change when adjusting the brightness, or the
change may only be noticeable once the sur­
ro undings change .
Adj ust the brightness to a level where the display
in the information stage will no t disrupt your
view ahead. If you change the brightness, the dis­
p la y in the exter ior mirror wi ll briefly show the
brightness level in the information stage . The
brightness of the warning stage is linked to the
brightness in the information stage and is adjust­
ed along with the information stage.
80
@ Tips
-Side assist is not active while you are mak­
ing the adjustment.
- Your settings are automatically stored and
assigned to the remote control key bei ng
used.
Messages
App lies to : vehicles wi th Audi side ass ist
If side assist sw itches off by itself, the LED in the
button turns off and a message will appear in the
i nstrument cluster display:
Audi side assist: Unavailable . Sensor vision
The radar sensor vision is impaired. Do not cover
the area in front of the sensors with bike whee ls,
stickers, dirt or other objects. Clean the area in
front of the sensors, if necessary
i::> page 78,
fig. 82 .
Audi side assist: Unavailable.
Side assist cannot be switched on at this time be­
cause there is a malfunction (for example, the
battery charge level may be too low).
Audi side assist: System fault!
The system cannot gua rantee that it will detect
vehicles correct ly and it has switched off. The
sensors have been moved or are fa ulty . Have the
system checked by an authorized Aud i dealer or
authorized Aud i Serv ice Facility soon .
Audi side assist: Unavailable when towing
Side assist switches off automatically when a fac­
tory- installed trailer hitch is connected to the
electrical connector on the trailer. There is no
guarantee the system will switc h off when using
a retrofitted trailer hitch. Do not use side assist
when towing a trailer.
Audi drive select
Introduction
Applies to : vehicles wit h Audi drive se lec t
Drive select makes it possible to experience dif­
ferent types of vehicle sett ings in one veh icle.
The driver can select from three modes,
Comfort , ..,.

Intelligent Technology
- Note that on wet streets, the front wheels
can "hyd roplane" if d riving at speeds that
are too high. Unlike front whee l drive
vehicles, the eng ine does not rev highe r sud­
denly when the vehicle begins hyd roplaning.
Fo r this reason, adap t your speed to the
road co nditio ns to reduce t he risk of an acc i­
dent.
Energy management
The starting ability is optimized
The energy management system manages the
electrical energy distribution and optimizes the
availability of electrical energy for starting the
engine.
When a ve hicle w ith a conventional e nergy sys­
tem is not driven for a long time, the vehicle bat ­
tery is dra ined by equipment (for example, the
immobilizer) . In certain circumstances, there
could may not be enough energy to start the en ­
gine .
Your veh icle is equipped with a n intelligent ene r­
gy management system for d istr ibut ing electric i­
ty . This s ignificantly improves the sta rting ability
a nd increases t he ve hicle battery life .
The energy management system Is made up of
battery diagnosis , idling current management ,
and dynamic energy management .
Battery diagnosis
The batte ry diagnos is determines the ve hicle bat­
tery charge level. The sensors dete rm ine the bat ­
tery voltage, the battery cur rent, and the battery
temperature. The c urrent charge level and the
pe rformance of the veh icle battery are deter ­
m ined based on th is .
Idling current management
The idling cu rrent management dec reases the
e n ergy used wh ile parked . With the eng ine
sw itched off, it manages the energy distribution
to the differe nt elect rical components. Data from
t he batte ry diagnos is is taken into account fo r
this.
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De pend ing on the vehicle batte ry c harge level,
e lectrica l eq uip ment is switched off one item af ­
te r the other to p revent t he vehicle battery from
dra ining and to ma inta in the starting ab ility.
Dynamic energy management
W hile driv ing , d ynam ic ene rgy man ageme nt di s­
tribu tes the ap propr iate amo unt of energy to t he
electrica l eq uip ment . It contro ls t he battery
c h arge level so that the amount o f energy is not
greater than the amount being generated in or ­
der to maintain an opt imal vehicle battery charge
l evel.
(D Tips
- Energy management cannot overcome the
laws of physics. Not e that the charge level
and length of the veh icl e bat tery life a re
limited .
- Wh en the sta rting ability is endangered, the
(•) indicator light t urns o n
c::> page 13.
What you should know
Maintaining the starting ability is the highest
priority .
A lot of st ress is placed on the veh icle battery
whe n driving short distances, d uring city d riving,
and at cold times of t he year. A lot of ene rgy is
u sed but li tt le is generated .
It is also critical
whe n the engi ne is no t ru nning but electrical
equipmen t is sw it c hed on . In t his ca se, energy is
u sed but none i s generate d.
In si tuati ons like t his, energy management w ill
ac tiv el y regulate the d is tr ibution of energy .
Long periods without use
If you do not drive yo ur vehicle for severa l days o r
wee ks, electrica l equ ipment is g radua lly sca led
bac k or sw itched off . Th is reduces energy use and
ensures the vehicle will be ab le to s tart a fter long
p er iods o f time . Some conven ience f unct ions,
s uch as in terior lig htin g, m ay not be available un ­
d er cert ain circu m sta nces. These c onve nien ce
f unct ions w ill be avail able ag ain once yo u sw itch
t h e ignit io n on and sta rt the eng ine. .,.

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With th e engin e switched off
The vehicle battery will d rain if yo u use I nfota in­
ment f unctions such as listening to the radio
while the engine is switched off .
The vehicle 's ability to start may be impaired by
the energy use, a message will appear in the In­
fotainment system disp lay .
The message ind icates that the system will
switch off au tomati cally soon. If you wou ld like
to continue using the funct ions, you must s tart
the engine.
With the engine running
Although electrical energy is gene rated whi le
d riving, the vehicle battery can drain. This can
h appen if l ittle energy is gene rated but much is
used, and the charge leve l of the veh icle ba ttery
is not optima l.
To restore the ba lance of energy, components
that requ ire large amo unts of energy are tempo­
r ar ily scaled bac k or switched off. Heating sys­
tems in part icular requi re a g reat deal of energy.
If
yo u notice, for example, that the seat heating*
or rear window defogger is not working, then it
has been temporarily reduced or switched off.
These systems are available again as soon as the
e nergy supply has been restored.
In addition, you may notice that the idle speed
has slightly increased. That is norma l and no
cause for concern. By increasing the idling speed,
the add itional required energy will be generated
and the vehicle battery will be cha rged.
Notice about data
recorded by the Event
Data Recorder and
vehicle control modules
Event Data Recorder
This vehicle is equipped with an Event Data Re­
corder (EDR). The main purpose of an EDR is to
record, in certain crash or near crash-like situa­
tions, such as an a irbag deployment or hitting a
road obstacle, data that will assist in understand­
in g how a veh icle's systems performed. The EDR
Intellig ent Technology
is des igned to record data related to vehicle dy ­
namics and safety systems for a short period of
t ime, typ ica lly 30 seconds or less. The EDR in this
vehicle is designed to record such data as:
- How various systems in your vehicle were oper ­
ating;
- W het her o r not the drive r and passenge r safety
be lts were buckled/fastened;
- How far (if at all) the driver was depressing the
accelerator and/or brake pedal; and,
- How fast the vehicle was traveling.
These data can help provide a better understand­
i ng of the circumstances in wh ich crashes and in­
j u ries occur. NOT E: EDR da ta a re recorded by your
vehicle on ly if a non-trivial crash s ituation occurs;
no data are re co rded by the E DR under normal
driving conditions and no persona l data (e .g .,
name, gender, age, and crash location) are re­
corded. However, other parties, such as law en­
forcement, could comb ine the EDR data with the
type of personally identifying data rout inely ac­
quired during a crash investigation .
To read data recorded by an EDR, special equ ip­
ment is required, and access to the vehicle or the
EDR is needed. In addition to the ve hicle manu­
fact urer, other pa rt ies, such as law e nforcement,
that have the special eq uipment, can read the in­
fo rmat ion if they have access to the vehicle or the
ED R.
Some state laws restrict the retrieval o r down­
load ing of data sto red by ED Rs installed in a ve hi­
cle for the exp ress purpose of retriev ing data af­
te r an a ccident or cras h event without the ow n­
er's consent .
Audi will not access the EDR and/or sim ila r data
o r give it to others -
- unless the ve hicle owner (or lessee if the vehi­
cle has been leased) agrees; or
- upon the official request by the police; or
- upon the order of a court of law or a govern-
ment agency; or
- for the defense of a lawsuit thro ugh t he judicia l
discovery process.
- Audi may a lso use the data for research abo ut
veh icle operation and safety performance or .,,.
95

Checking and Filling
-Never open the cap on the coolant expan­
sion tank when the engine 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 with the en­
gine running, there is additional danger due
to moving components (such as the ribbed belt, alternator and radiator fan) and from
the high-voltage ignition system.
- Do not under any circumstances give gas in­
advertently (for example, by hand from the
engine compartment) if the vehicle is sta­
tionary but the engine is running and a gear
is engaged. Otherwise, the vehicle will start
to move immediately and this could result
in an accident.
- Pay attention to the following warnings list­
ed when work on the fuel system or on the
electrical equipment is required.
- Do not smoke .
- Never work near open flames.
- Always have a working fire extinguisher
nearby.
- All work on the battery or electrical system
in your vehicle can result in injuries, chemi­
cal burns, accidents or burns. Because of
this, all work must be performed
only by an
authorized Audi dealer or authorized Audi
Service Facility.
- To reduce the risk of electric shock and in­
jury, never touch the following components when the engine is running or is being start­
ed:
- Ignition cable
- Other components in the electronic high-
voltage ignition system
- If you must check or perform work on the
engine while it is running:
- Set the parking brake and place the selec­
tor lever in the P (park) position first .
- Always proceed with extreme caution so
that clothing, jewelry or long hair do not
156
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 .
- Limit your exposure to exhaust and chemi­ cals to as short a time as possible
¢ &, .
A WARNING
California Proposition 65 Warning:
- Engi ne exhaust, some of its constituents,
and certain vehicle components contain or
emit chemicals known to the State of Cali­
fornia to cause cancer and birth defects and
reproductive harm . In addition, certain flu­
ids contained in vehicles and certain prod­
ucts of component wear contain or emit
chemicals known to the State of California
to cause cancer and birth defects or other reproductive harm .
- Battery posts, terminals 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.
@ Note
When filling fluids, be sure not to mix the flu­
ids up. Otherwise severe malfunctions and en­
gine damage will occur .
@ For the sake of the environment
You should 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 authorized Audi Service Facility to be
checked.

Checking and Filling
Engine compartment overview
The most important check points.
Fig. 137 Typical location of the rese rvoir and the engine o il fil le r open ing
(D Coolant reservoir ( - L) ¢ page 162
@ Oil dipstick ¢ page 160
® Engine oil filler opening ('t:::r.) ¢page 160
© Eng ine oil label* w ith VW standard
evpage 158
® Brake f luid reservoir ((0)) ¢ page 163
® Vehicle battery(+) ¢ page 164, evpage 203
(?) Jump start point( -) w ith hex head screw
ev page 164, ev page 203
@ Washer fluid reservoir (O) ev page 165
® Fuse housing c:::> page 199
The oil dipstick (item @) and the engine oil fi ller
open ing (item @) can be located in different po­
sitions depend ing on the engine version.
_& WARNING
Read and follow all WARN INGS before check­
ing anything i n the engi ne compa rtment¢ &.
in Working in the engine compartment on
page 155 .
158
Engine oil
Engine oil specifications
The engine oil used must conform to exact speci­
fications.
The serv ice interval d isplay in the inst rumen t
cluster of your vehicle will inform you when it is
time for an o il change . We recommend that you
have your oi l changed by a n authorized Audi Se rv­
i ce Advisor.
If you must add oil betwee n oil changes, use an
oi l that matches the Audi oil quality standard
li sted on the sticker. The sticker is located at the
front of the eng ine compartment ¢
page 158,
fig. 137 .
Audi re commend s
~Castrol /fg/j;Sf.g;fg f'r Aud i recomme nds Longlife high performance
eng ine oil from Aud i Genuine Pa rt s
liJI,

a
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Audi dealer or authorized Audi Service Facility
and have the cooling system inspected. If the
cooling system is not leaking, a loss can come
from the coolant boiling through overheating
and being pushed out of the cooling system.
A WARNING
- The cooling system is under pressure . Do
not open the coolant expansion tank cap
when the engine is hot . This increases the
risk of burns .
- The coolant additive and the coolant can be
dangerous to your health. For this reason,
keep the coolant in the original container
and away from children. There is a risk of
poisoning.
- When working in the engine compartment,
remember that the radiator fan can switch
on even if the ignition is switched off, which
increases the risk of injury.
CD Note
-
Do not add coolant if the expansion tank is
empty . Air could enter the cooling system and
damage the engine.
If this is the case, do not
continue driving. See an authorized Audi deal­
er or authorized Audi Service Facility for assis­
tance.
Brake fluid
Fig. 141 Eng ine compartment: cap on brake flu id reservoir
Observe the safety precautions ¢ page 155,
Working in the engine compartment .
Checking the brake fluid level
~ Read the brake fluid Level on the brake fluid
reservoir ~
page 158, fig . 13 7. The brake fluid
Checking and Filling
Level must be between the MIN and MAX mark­
ings
~ A .
The brake fluid Level is monitored automatically.
Changing the brake fluid
Have the brake fluid changed regularly by an au­
thorized Audi dealer or authorized Audi Service Facility .
A WARNING
- If the brake fluid level is below the MIN
marking, it can impair the braking effect
and driving safety, which increase the risk of
an accident. Do not continue driving. See an
authorized Audi dealer or authorized A udi
Service Facility for assistance.
- If the brake fluid is old, bubbles may form
in the brake system during heavy braking .
This would impair braking performance and driving safety, which increases the risk of an
accident .
- To ensure the brake system functions cor­
rectly, only use brake fluids that comply
with VW standard 501 14 or
FMVSS-116 DOT 4.
CD Note
- If the brake flu id level is above the MAX
marking, brake fluid may Leak out over the
edge of the reservoir 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 complex power supp ly, all work
on batteries such as disconnecting, replacing,
etc. should
only be performed by an authorized
Audi dealer or authorized Audi Service Facility
¢ .&,.
The term "vehicle battery " refers to the 12 Volt
battery in your vehicle.
163
...

Checking and Filling
Detailed warning s for the vehicle b atter y:
®
Wear eye protection .
A
Battery acid is high ly corrosive . Wear pro-
tective gloves and eye pro tect ion.
@
F ire, spark s, open flame an d smok ing are
forb idden .
~
A highly explosive mix ture of gases can
form when charging batteries.
®
Keep c hildren away from battery acid and
ba tteries .
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
onl y by an author­
i z ed Aud i dealer or authorized Audi Serv ice
Facility.
A WARNING
California Proposit ion 65 Warning :
- Battery posts, termina ls and related acces­
sories contain lead and lead compounds,
chem icals known to the State of California
to cause cancer and reproductive problems .
Wash hands after handling .
(D Note
Protect the vehicle battery against freezing if
the vehicle wilt be parked for long periods of
time so that it is not destroyed by "freezing"
9 page 164, Charging the vehicle battery .
Charging the vehicle battery
Fig . 14 2 Eng ine co mpartment: con nect ors fo r a c har ger
and jump start cab les
164
Observe the safety precautions 9 pag e 155,
Working in the eng ine compartm ent.
Requirement: only use chargers with a maximum
ch arg ing curr ent of 30 amps /14 .8 V olt s.
The ve­
hicle battery cables remain connected .
The battery is located in the engine compart­
ment . T he ground po int
0 i s always located on
the veh icle body .
.,. Read the wa rnings
9 .&. in General warnings
about batteries on page 164
and 9 ,&. .
.,. Switch off the ig nitio n and all electrica l equ ip-
men t.
.,. Open the hood
9 page 157 .
.,. Fold th e battery cover upward 9 fig. 142.
.,. Clamp the terminal clamps on the charger cor­
rectly onto the ground point
O and the pos it ive
termin al(v .
.,. Now insert the power cable for the charging de ­
vice into the socket and switch the device on .
.,. At the end of the charging p rocess, switch the
charger off and pull the power cable ou t of the
socket.
.,. Now remove the charging device term inal
clamps.
.,. Close the batt ery cov er.
.,. Close the hood
¢ page 15 7.
A WARNING
- A high ly explosive mixture of gases can form
when charg ing batteries . Only charge the
veh icle battery in we ll-ventilated areas .
- A drained vehicle battery can freeze at tem­
peratures around 32 QF (0 QC). A frozen or
thawed vehicle battery must not be charged
and must not be used anymo re . T he battery
housing can crack and batte ry a cid can leak
out if ice forms, which increases the risk of
an explosion and chemical burns. Contact an
authorized Audi dealer or authorized Audi
Service Facility for more information.
- Do not connect or disconnect the charging
cable wh ile charging because this increases
the risk of an explosion .

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@ Tips
- Only charge the vehicle battery through the
connections in the engine compartment.
- Read all of the manufacturer's instructions
for the charger before charging the vehicle
battery.
Windshield washer system
Fig. 143 Engine compartment: windshield washer fluid
reservoir
Observe the safety precautions q page 155,
Working in the engine compartment.
M N ~ N
"' a) ID
The windshield washer fluid reservoir W contains
the cleaning solution for the windshield and the rear w indow
q page 158, fig . 137,. The reservoir
capacity can be found in
qpage 210.
To reduce the risk of lime scale deposits on the
spray nozzles, use clean water with low amounts
of calc ium . Always add window cleaner to the wa­
ter. When the outside temperatures a re cold, an
anti-freezing agent should be added to the water
so that it does not freeze.
- The concent ration of anti-freezing agent
must be adjusted to the vehicle operating
conditions in the respective climate. A con­
cent ration 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 that contains
paint solvents, because this could damage
the paint .
Checking and Filling
Service interval display
The service interval display detects when your ve­
hicle is due for service .
The service interval display works in two stages:
-Inspection or oil change reminder : after a cer-
tain distance is driven, a message appears in
t he instrument cluster display every time the
ignition is switched on. The remaining distance
or time is displayed br iefly.
- Inspection or oil change due: if your vehicle
has reached an inspection or oil change interval
or both intervals at the same time, the mes­
sage
Inspection due! or Oil change due! or Oil
change and inspection due!
appears briefly af­
ter sw itching the ignition on.
Checking service intervals
You can check the remaining distance or time un ­
ti l the next oi l change or next inspection .
- Select: the
I CARI function button > (Car) Sys­
tems*
control button > Servicing & checks >
Service intervals .
Resetting the indicator
An autho rized Aud i dea ler or a uthorized Audi
Service Facility will reset the service in terva l dis­
play after performing service .
If you have changed the o il yourself, you must re­
set the oil change interval.
Perform the follow ing to reset the d isplay:
- Select: the
I CAR I function button > (Car) Sys­
tems *
control button > Servicing & checks >
Service intervals . Turn the control knob down­
ward to
Reset oil change interval and press the
control knob .
~ Note
-Only reset the oil change ind icator if the oil
was changed.
- Following the service intervals is crit ica l to
ma intaining the service life and value of
your vehicle, especially the engine . Even if
the mileage on the vehicle is low, do not ex­
ceed the time for the next service.
165