2018 AUDI Q3 maintenance

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Safety belts . . . . . . . . . . . . . . . . . . . . . . 106
General information . . . . . . . . . . . . . . . . . 106
Why use safety belts? . . . . . . . . . . . . . . . . 107
Safety belts . . . . . . . . . . . . . . . . . . . . . . . . 109
Belt tensioners . . . . . . . . . . . . . . . . . . . . . . 112
Airbag system . . . . . . . . . . . . . . . . . . . . 114
Important information . . . . . . . . . . . . . . . 114
Front a irbags . . . . . . . . . . . . . . . . . . . . . . . 118
M on itor ing the Advanced Airbag System . 124
Side airbags . . . . . . . . . . . . . . . . . . . . . . . . 128
S ide curtai n airbags . . . . . . . . . . . . . . . . . . 131
Child safety . . . . . . . . . . . . . . . . . . . . . . 134
I mpor tant info rmation . . . . . . . . . . . . . . . 134
C hi ld safety seats . . . . . . . . . . . . . . . . . . . . 14 0
Secur ing c hild safety sea ts . . . . . . . . . . . . 14 4
L ATCH system ( lowe r anchorages and
tethers for chi ldren) . . . . . . . . . . . . . . . . . 14 7
Additional information . . . . . . . . . . . . . . . 151
Maintenance and Care . . . . . . . . . . . 152
Checking and Filling . . . . . . . . . . . . . 152
F ue l ... .. .... ............... .. ..... 152
Refueling . . . . . . . . . . . . . . . . . . . . . . . . . . 153
Cata lytic converter . . . . . . . . . . . . . . . . . . . 155
Eng ine compartment . . . . . . . . . . . . . . . . . 155
E ng ine oil . . . . . . . . . . . . . . . . . . . . . . . . . . 158
Cooling system . . . . . . . . . . . . . . . . . . . . . . 162
B ra ke flu id . . . . . . . . . . . . . . . . . . . . . . . . . 163
B at tery . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163
W indshield was her system . . . . . . . . . . . . 165
Service inte rval display . . . . . . . . . . . . . . . 165
Wheels ..... .. ... ..... ... .. .. .... . 166
Wheels and Tires . . . . . . . . . . . . . . . . . . . . 166
Tire press ure monitoring system 183
Care and cleaning . . . . . . . . . . . . . . . . 185
General information . . . . . . . . . . . . . . . . . 185
Ca r washes . . . . . . . . . . . . . . . . . . . . . . . . . 185
C leaning and care information . . . . . . . . . 186
Placing your veh icle out of service . . . . . . 190
Do It Yourself . . . . . . . . . . . . . . . . . . . . 191
Emergency assistance . . . . . . . . . . . 191
General information . . . . . . . . . . . . . . . . . 191
Equipment . . . . . . . . . . . . . . . . . . . . . . . . . 191
Table of contents
Replacing wheels . . . . . . . . . . . . . . . . . . . . 191
Spare tire . . . . . . . . . . . . . . . . . . . . . . . . . . 197
Fuses and bulbs . . . . . . . . . . . . . . . . . . 199
E lectrica l fuses . . . . . . . . . . . . . . . . . . . . . . 199
B ul bs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201
Emergency situations . . . . . . . . . . . . 203
Genera l . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203
Start ing by p ush ing or tow ing . . . . . . . . . . 203
Start ing with jumper cables . . . . . . . . . . . 203
U se of jumper cables . . . . . . . . . . . . . . . . . 204
Tow ing with a tow t ruck . . . . . . . . . . . . . . 20S
Raising the vehicle . . . . . . . . . . . . . . . . . . . 207
Accessories and Technical Data . 209
Technical data . . . . . . . . . . . . . . . . . . . . 209
Vehicle spec ificat ions . . . . . . . . . . . . . . . . 209
Notes about technical da ta . . . . . . . . . . . . 209
Weights . . . . . . . . . . . . . . . . . . . . . . . . . . . 209
D imens ions. ... .. .. .... .. .... ... .. .. 2 10
Capacities . . . . . . . . . . . . . . . . . . . . . . . . . . 210
Gasoli ne engines . . . . . . . . . . . . . . . . . . . . 211
Consumer Information . . . . . . . . . . 2 12
War ranty coverages . . . . . . . . . . . . . . . . . . 212
Operating you r vehicle outside the U.S.A.
or Canada . . . . . . . . . . . . . . . . . . . . . . . . . . 212
Audi Service Repair Manuals and
Literat ure . . . . . . . . . . . . . . . . . . . . . . . . . . 212
Maintenance ...... .... ........... ... 212
Accessor ies and techn ica l changes . . . . . . 214
De claration of comp liance for
te lecommunications equipmen t and
ele ctroni c sys tems . ... ... ..... ... .. .. 21S
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 16
3

Driving
braking effec t, which he lps to protect the brakes
and tires and reduces the emissions and fuel con­
sumpt ion to zero (fuel shut-off during dece lera­
tion) .
Shift effici en tly
Upshift ing earlier is an effective way to save fuel.
Staying in a gear too long uses fue l unnecessari ­
ly.
P ress down o n the acce le ra tor peda l slowly and
avoid " kick -down ".
Avoid full acceleration
You should rare ly trave l at the maximum vehicle
speed. High speeds cause a d isproportionately
h igh inc rease in fuel consump tion, emissions and
tr affic no ise. Slower driving saves fuel.
Reduce idling time
There are benefits to stopp ing the engine, for ex ­
ample when at railroad crossings or traffic lights
with longer red lights. Stopping the engi ne for
30 -40 seconds already saves mo re fuel than the
amount of extra fuel needed to restart the en­
gine.
It takes a very long time in idle to wa rm the en­
g ine up to ope ra ting tempe ra tu re. Wea r and
emissions are especially high in the wa rm -up
phase . Therefore, yo u should begi n driving im ­
mediately after starting the engine. Avoid high
RP Ms while doing t his .
Have maintenance performed r egularly
By having m ainten ance perfo rmed regu larly on
your ve hicle, yo u can he lp to reduce f uel con­
sumpt ion befo re yo u even start to dr ive. The
maintenance condition of your vehicle not only
affects traffic safety and long-te rm value but a l­
so impacts
fuel consumpt ion . A poorly main­
tained engine can lead to fuel consumption that
is 10% higher than normal.
Also check th e
oil level when refueling . T he oil
consumption
depends large ly on the engine load
and speed. It is normal for the oil consumpt ion
of a new eng ine to reach its lowest point only af ­
ter a certain amount of use. Therefo re, the oil
consumpt ion can o nly be properly judged after
58
approximately 3,0 00 miles (S,000 km) have been
driven .
Avoid short trips
The eng ine and exhaust clean ing system mus t
r each their optima l
operating temperature to ef­
fe ct ively reduce consump tion and emissions.
A cold engine uses a d isp roportionately high
amount of fue l. The engine reac hes operat ing
temperat ure and cons umption no rmal izes on ly
a fter approximate ly 2.5 m iles (4 km) .
Check the tire pressure
To save fuel, make sure the t ires are always in­
flated to the correct pressure ~
page 175. The
fuel consumpt ion can increase by 5% if the p res ­
s ur e is on ly 0.5 bar too low. Due to the i ncreased
rol ling resis tance, low tire p ressures w ill also
l ead to greater tire
wear and will affect driving
behavior .
Do no t drive on
winter tir es ye ar-r ound, as this
will consume up to 10% more f uel.
Eliminate unnecessary weight
S ince every po und of ext ra weight increases fuel
consump tion , a quick inspect io n of the luggage
compartmen t may be wo rth it to avoid unneces ­
s ar y we ight.
When not be ing used, a roof rack shou ld be re­
moved to decrease the w ind resistance of the ve­
hi cle. This will save yo u ap prox imately 1 2% fue l
at speeds from 62 -75 mph (100 -12 0 km/h).
Save energy
The eng ine drives the generator, which generates
e lectric ity; the fuel consumpt io n also increases
with t he demand for e lectricity . T he refore, sw itch
electrica l eq uipm ent off whe n you no longe r
need i t. Exa mples of eq uipme nt tha t uses a lo t of
energy a re air blowe rs at a high setting, the rea r
window defogger and seat heating* .
([) Note
-Do not leave engine idling un attended afte r
sta rting. If warn ing li ghts should come on
to ind icate improper ope ration, they wou ld
go unheeded . Extended idling also pro duces .,.

heat, which could result in overheating or
other damage to the vehicle or other prop­
erty.
- Have your vehicle maintained properly and
in accordance with the service recommenda­
tions in your Warranty
& Maintenance book­
let. Lack of proper maintenance as well as
improper use of the vehicle will impair the
function of the emission control system and
could lead to damage .
- Do not alter or remove any component of
the Em ission Control System unless ap­
proved by the manufacturer .
- Do not alter or remove any device, such as
heat shields , switches, ignition wires,
valves, which are designed to protect your
vehicle's Emission Control System and other
important vehicle components .
@ Tips
The consumpt ion estimates as published by
ENVIRONMENTAL PROTECTION AGENCY
(EPA) and Transport Canada may not corre­
spond to your actual consumption on the
road, which will vary depending upon vehicle
load and speed, road and weather conditions,
trip length, etc.
Steering
Adjusting the steering wheel position
The steering wheel position is adjustable up and
down and forward and back .
Fig. 67 Lever under the s tee rin g colu mn
~ .,. Tilt the lever downward ¢ .&, . ......
~ .,. Bring the steering wh eel into the d esired posi-N
8 tion. 0 ::, (X)
Driving
.,. Press the lever upward again until it locks in
place .
A WARNING
Incorrect use of the steering wheel adjust­
ment and an incorrect seating position can
cause serious injuries.
- Only adjust the steering column when the
vehicle is stationary so that you do not lose control of the vehicle.
-
- Adjust the driver's seat or steering wheel so
that there is at least 10 inches (25 cm) dis­
tance between your chest and the steering
wheel ¢
page 98, fig. 98 . If you do not
maintain this d istance, the airbag system
will not be able to provide its full protec­
tion .
~ page 98, fig . 98 .
-If your physical characteristics prevent you
from sitting at least 10 inches (25 cm) or
more away from the steering wheel, see if
an authorized Audi dealer or authorized
Audi Service Facility can provide adapters
that will help.
- If your face is level with the steering wheel,
the airbag does not provide as much protec­
tion during a collision. Always make sure
that the steering wheel is level with your
chest .
- Always hold the steering wheel with your
hands in the 9 o'clock and 3 o'clock posi­
tions to reduce the risk of injury if the airbag
deploys.
- Never hold the steering wheel in the 12
o'clock position or with both hands on the
rim or the center of the steering wheel.
Holding the steering wheel incorrectly sig­
n ificantly increases the r isk of injury to the
hands, arms and head if the airbag deploys.
59

Driving
Selector lever emergency release
Applies to: ve hicles w ith a utomat ic tra nsm iss io ns
If the vehicle's power supply fails, the selector
Lever can be released in an emergency.
F ig. 76 Selector leve r: remov ing th e cover
Fig. 77 Selec tor lever: eme rgency re lease
To maneuver or tow the vehi cle, the emergency
release must be used to move the selector lever
from the P position.
Using the emergency rele ase can be compli cated.
We recommend contacting an a uthorized Audi
dealer or authorized Audi Service Facility for as ­
sistance , if necessary .
A ma intenance tool from the vehicle tool ki t
must be used to re lease ¢
page 191 .
Preparations
.,. To preve nt yo ur vehicle from ro lli ng u ninten­
t iona lly, se t the par king b rake(®) or press the
brake peda l r:!.>
,& .
.,. Inse rt the fla t side of the maintenance too l
sideways in the s lot near the s hif t cover and pry
off the shift cover¢ fig. 76 .
.. Pull the frame and the cover upward. You can
fold the cover up over the shifter knob.
72
S ele cto r lev er emergenc y re lease
.,. Press and hold the ye llow release b utton
r:!.> fig. 77.
.,. Press the button on the selector lever and move
the lever into N pos ition .
.,. Clip the frame to the cover again.
A WARNING
- On ly activate the emergency release while
on a level surface or a slight slope .
- Only move the selector lever out of the P po­
sition when the parking brake is set. If it is
not f unct io ni ng, secu re the ve hicle from
ro lling using the bra ke pedal or other suita­
ble mea ns, such as b locking a front and a
rear w heel. An unsecured vehicle may roll
away, which increases the risk of a n acci­
de nt.

Airbag system
service action is entered in your Audi War­
ranty
& Maintenance book let under AIRBAG
REPLACEMENT RECORD.
@ For the sake of the environment
Undeployed airbag modules and pretension­
ers might be classified as Perchlorate Materi­
al -special handling may apply, see
www.dtsc.ca.gov/hazardouswaste/perchlo­
rate. When the vehicle or parts of the re­
straint system including airbag modules safe­
ty belts with pretens ioners are scrapped, al l
applicable laws and regulat ions must be ob­
served. Your authorized Audi dealer is familiar
with these requ irements and we recommend
that you have your dealer perform this service
for you.
Other things that can affect Advanced
Airbag performance
Changing the vehicle's suspension system can
change the way that the Advanced Airbag System
performs in a crash. For examp le, using t ire-rim
combinations not approved by Audi, lower ing the
veh icle, changing the stiffness of the suspens ion,
including the springs , suspension struts, shock
absorbers etc . can change the forces that are
measured by the airbag sensors and sent to the
electronic control unit. Some suspension changes
can, for example, increase the force levels meas­
ured by the sensors and make the airbag system
deploy in crashes in which it would not deploy if
the changes had not been made . Other kinds of
changes may reduce the force levels measured by
the sensors and prevent the airbag from deploy­
ing when it should .
A WARNING
Changing the vehicle's suspension including
use of unapproved tire-rim combinations can
change Advanced Airbag performance and in ­
crease the risk of serious personal in jury in a
crash.
- Never install suspension components that
do not have the same performance charac­
teristics as the components originally instal­
led on your veh icle .
128
.
-Never use tire-rim combinations that have
not been approved by Aud i.
A WARNING
Items stored between the safety belt buckle
and the center conso le can cause the sensors
in the buckle to send the wrong information
to the electronic control module and prevent
the Advanced A irbag System from wo rking
p roperly.
-Always make sure that nothing can interfere
w ith the safety belt buckles and that they
are not obstructed.
Side airbags
Description of side airbags
The airbag system can provide supplemental
protection to properly restrained occupants.
Fig. 116 Sid e a irbag locatio n in the dr ive r's seat
The side airbags are located in the s ides of the
front seat backrests
~ fig . 116 facing the doors .
They are identified by the word "AIRBAG ".
The side airbag system basically consists of:
-the electronic control module and external side
impact sensors
- the two airbags located in the sides of the front
backrests
- the airbag warning light in the instrument clus-
ter.
The airbag system is mon itored electron ically to
make certain that it is functioni ng properly at a ll
times. Each time you turn on the ignition, the air ­
bag system indicator light will come on for a few
seconds (self diagnostics). .,,_

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Using the prope r engine oil is important for the
functionality and s ervice life of the engine. Your
engine was factory-filled with a high -quality oil
which can usually be used throughout the entire
year .
Note
Your Limited New Vehicle Warranty does not
cover damage or malfunctions due to failure
to follow recommended maintenance and use
requirements as set forth in the Audi Owner's Manual and Warranty & Maintenance booklet .
- Use only a high quality engine oil that ex-
pressly complies with the Aud i oil quality
standard specified for your vehicle's engine.
Using any o ther oil can cause serious engine
damage.
- Do not mix any lubricants o r other additives
into the engine oil. Doing so can cause en­
gine damage.
@ Tips
If you need to add oil and there is none availa­
ble that meets the Audi o il quality standard
your eng ine requ ires, you may add a total of
no more than 0 .5 quart/li ter of a h igh-quality
"synthet ic"oil that meets the following speci ­
fications.
- ACEA A3 or API SM with a v iscosity grade o f
SAE OW-30, SAE SW -30 or SAE SW-40.
- Fo r more information abou t engine o il t ha t
has been approved for your vehicle, please
contact either your authorized Audi dea ler
or Audi Custome r Relat ions at
1 (800) 822-2834 or visit our web site at
www .audiusa.com or www .aud icanada .ca.
Engine oil consumption
T he engine in your vehicle depends on an ade­
qua te amoun t of oil to lubricate and cool all of
i t s moving par ts.
In order to provide effective lub rication and coo l­
ing of in te rnal engine components, a ll internal
combustion engines consume a cer tain amount
of oil. Oil consumption varies from engine to en ­
g ine and may change sign ificantly over the life of
the eng ine . Typically, eng ines with a spec ified
Ch eck ing and Filling
break-in period (see ¢ page 57) consume more
oi l during th e break-in period than they consume
after oil consumption has stabilized.
Under normal cond itions, the rate of oil con­
sumption depends on the q uality and viscos ity o f
the oil , the RPM (revolutions per minut e) at
which the engine is operated, the amb ient tem­
perature and road condit ions. Further factors are
the amount of oil dilution from w ater condensa­
tion or fuel resid ue and the oxidation level of the
o il. As any engine is subject to wear as mileage
builds up, the oi l consumption may increase ove r
t ime unt il repla cement of worn components may
become necessary.
With al l these variables coming into play, no
standard rate of o il consumption can be estab­
l ished or spec ified . T he re is no alte rnative to reg­
u la r and fre quent chec king of the o il level , see
Note .
If the yellow engine oil level warning symbo l II
in the instrument cluster lights up , you sho uld
check the o il level as soon as possible
¢ page 160. Top off the o il at your earliest con­
venience.
A WARNING
Before you check anything in the engine com­
partment, always read and heed all WARN ­
INGS¢ .&.
in Working in the engine compart­
ment on page 155.
(D Note
D riving wit h an insufficient oil level is likely to
cause severe damage to the engine .
(D Tips
- The oil pressure warn ing display. i s not
an indicato r of the o il le vel. Do not rely on
it . Instead, check the oil level in your en ­
gine at regular intervals , pre fe rabl y each
time you refuel, and alw ays befo re go ing
on a long trip .
-If you have the impression your engine con­
sumes excessive amounts of oi l, we recom­
mend that you consult an author ized Audi
dea ler to have the cause of your concern
159

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A WARNING 1 = -
The traction grade ass igned to this tire is
based on straight-ahead braking traction
tests, and does not include acceleration, cor­ nering, hydroplaning or peak tract ion charac­
teristics.
A WARNING
The temperature grade for this t ire is estab­
lished for a t ire that is properly inflated and
no t overloaded. Excess ive speed, underinfla­
tion, or excessive loading, either separately or
in combination, can cause heat buildup and
possible tire failure.
A WARNING
Temperature grades apply to tires that are properly inflated and not over or underinflat­
ed.
Tire pressure monitoring system
(!) General notes
Applies to: veh icles with tire pressure monitoring system
-
Each tire, including the spare (if provided),
should be checked monthly when co ld and inflat­
ed to the inflation pressure recommended by the
vehicle manufacturer on the vehicle placa rd or
tire i nflat ion pressure label. (If your vehicle has
tires of a different s ize tha n the s ize indicated on
the veh icle placard or tire inflation pressure la­
be l, yo u sh ou ld de termine the prope r tire infla­
tion pressure for those tires).
As an added safety feature, your veh icle has been
eq uipped w ith a tire pressu re monito ring sys tem
(TPMS) that ill uminates a low tire p ress ure te ll­
tale when one or more of your tires is significan t­
l y under-inflated. Accordingly, when the low tire
p ressure tellta le illuminates, you should stop and
check yo ur tires as soon as possible, and inflate
them to the proper pressure. Driving on a s ignifi­
cantly under-i nflated tire causes the tire to over­
h eat and can lead to t ire failure . Unde r-inflation
a lso reduces fuel efficiency and t ire t read life,
Wh eel s
and may affect the vehicle 's handling an d stop ­
ping ability.
Please note tha t the TPM S is not a s ubstitute fo r
prope r ti re maintenance, a nd it is the dr iver's re­
spons ibility to maintain co rrect t ire pressure,
even if under-inflatio n has not reached the level
to t rigge r ill umination of the TPMS low t ire pres­
s ur e te lltale .
Yo ur vehicle has also been equipped with a TPMS
malfunction indicator to indicate when the sys­
tem is not ope rating properly. The TP MS ma l­
funct ion indicator is combined with the low t ire
pressure telltale. When the system detects a
malfu nction, the telltale w ill flash for app roxi­
mately one m inute and t hen rema in continuously
illuminated . Thi s seque nce w ill cont inue upon
s u bsequent vehicle star t-ups as long as the mal­
funct ion exists.
When the malfunction indicator is illum inated,
the system may not be able to detect o r signal
l ow tire p ressure as intended. TPMS malfunct ions
may occur fo r a v arie ty of reaso ns, including the
insta llation o f replacement or al ternate tires or
whee ls on the vehicle that p revent the TPMS
from functioning proper ly . Always check the
TPMS ma lf u nction te lltale after replac ing one or
more tires or wheels on yo ur vehicle to ensure
that the rep lacement or a lt ernate tires and
wheels allow the TPMS to continue to function prope rly.
' If the Tire Pressure Monitoring System
indicator appears
Applies to: vehicles wi th Tire Pressur e Mon ito ring System in·
dicator
The tire pressure indicator in the ins trument
cluster informs you if the tire pressure is too low
or if there is a system malfunction .
Using the ABS sensors, the tire pressure monitor­
ing system compares the tire tread c ircumfer­
ence and v ibration characterist ics of the ind ividu ­
al tires. If the pressure changes in one o r more
whee ls, this is indicated in the inst rument cl uste r
display with t he
[IJ indica to r light and a mes­
sage . If only one tire is affec ted, the locat ion of
that tire w ill be indicated. .,,.
183

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Engine compartment fuse assignment
The fuse number is stamped into the plastic be­
low or above each fuse.
No. Equipment
1 Transmiss ion supply
2 ESC
3 Horn
4 DC/DC
converter
5 BCM, battery data module
6 BCM (right)
7 Washer fluid pump
8 BCM (left)
9 Seat adjustment lumbar support
10 Glow time
control module, fuel pump,
heated oxygen sensor
11 Steering
column lever, multifunction
steer ing whee l controls
1 2 Cell phone adapter
13 En
gine control module
14 Engine control module
15 Gateway
16 Heated oxygen sensor, fuel pump, eng
ine
components
17 Engine components
18 Fue
l pump control module
19 Sound amplifier, DC/DC converter
20 Clutch pedal sensor, brake light sensor
22 Windshield wipers Radiator fan, engine components, coolant
23 recirculation pump, auxiliary
heater, fuel
pump relay coils
24 Ignition coils
25 Driver's door
control module (central lock-
ing, window regulators)
26 Front passenger's door control module
(centra
l locking, window regulators)
27 Term inal 15 supply
29 Power seat adjustment (driver,
front pas-
senger)
30 ESC
Fu ses an d bulb s
Bulbs
Replacing light bulbs
For your safety, we recommend that you have
your authorized Audi dealer replace any bulbs for
you .
It is becoming increasingly more and more diffi­
cult to replace vehicle light bulbs since in many
cases, other parts of the car must first be re­
moved before you are able to get to the bulb .
T his applies especially to the light bulbs in the
front of your car which you can only reach
through the engine compartment .
Sheet metal and bu lb holders can have sharp
edges that can cause serious cuts, pa rts must be
correctly taken apart and then properly put back
together to help prevent breakage o f parts and
long term damage from water that can enter
housings that have not been properly resealed.
For your safety, we recommend that you have
your authorized Aud i dea ler rep lace any bulbs fo r
you, since your dealer has the proper tools, the
correct bulbs and the expertise.
Gas di schar ge la mps (Xe no n ligh ts):
Due to the high electr ical voltage, have the bulbs
rep laced by a qualified technician. Headlights
with Xenon light are identified by the hig h volt­
age st icker.
LED headlights* require no maintenance . Please
contact your authorized Audi dea ler if a bulb
needs to be replaced.
_&. WARNING
Changing Xenon lamps wi thout the necessary
equipment can cause serious personal injury .
- Bulbs are pressu rized and can explode when
be ing changed. Potent ial ris k of injury!
- On veh icles equipped with gas disc harge
bu lbs (Xenon light) life-threatening injuries
can resu lt from improper handling of the
high-vo ltage portions of such lamps!
- Only your authorized A udi dealer or quali­
f ied workshop sho uld change the bulbs in
gas discharge lamps. There are parts with
sharp edges on the openings and on the
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