ESP AUDI Q3 2018 Repair Manual

Wheels
The tire pressures must be stored in the Infotain­
ment system again each time the pressures
change (switch ing between partial and full load
pressure) or after changing or replacing a tire on
your vehicle
c:::> page 184. The tire pressure moni­
toring system only monitors the tire pressure you have stored . Refer to the tire pressure label for
the recommended tire pressure for your vehicle
c:::> page 176, fig. 147.
Tire tread circumference and vibration character­ istics can change and cause a t ire pressure warn­
ing if:
- the tire pressure in one or more tires is too low
- the tire has structural damage
- the tire was replaced or the tire pressure was
changed and it was not stored
c:::> page 184
- the spare tire* is installed
Indicator lights
ti] -Loss of pressure in at least one tire c:::> & .
Check the tires and replace or repair if necessary.
Check/correct the p ressures of all four tires and
store the pressure again in the menu display
c:::> page 184.
@m (Ti re Pressure Monitoring System) Tire
pressure : System malfunction!. If@m
appears
after switching the ignit ion on or whi le driving
and the
ti] indicator light in the instrument clus­
ter blinks for approximately one minute and then
stays on, there is system malfunction. Try to
store the correct tire pressures
c:::> page 184. If
the indicator light does turn off or turns on again
after a short period of time, dr ive to an author­
ized Audi dealer or authorized Aud i Service Facili­
ty immediately to have th e malfunct ion correct­
ed.
_& WARNING
- If the tire pressure indicator appea rs in the
display, reduce your speed immediate ly and
avoid any hard steering or braking maneu­
vers. Stop as soon as possib le and check the
t ir es and their pressure.
- The driver is responsible for maintaining the
correct tire pressure. You must check the
tire pressure regularly.
184
'
-Under certain conditions (such as a sporty
driving style, w inter conditions or unpaved
roads), the tire pressure monitoring system
ind icator may be delayed .
- Do not use run-flat tires on your vehicle. Us­
ing them when not permitted can lead to
veh icle damage or accidents.
(D Tips
- The tire pressure monitor ing system can al­
so stop working when there is an ESC mal­
function.
- Using snow chains may result in a system
malfunction.
- The tire pressure monitor ing system in your
Audi was calibrated with "Audi Or iginal
Tires"
c:::> page 173. Using these tires is rec­
ommended.
Storing tire pressures
App lies to: vehicles wit h Tire Pressure Monito rin g Syste m in­
dic ator
.. Make sure before storing that the tire pressures
of all four tires meet the specified values and
are adapted to the load <=:>page
175 .
.. Switch the ignition on.
.. Select: the
I CARI funct ion button > (Car) Sys­
tems *
control button > Servicing & checks >
Tire pressure monitoring > Store tire pressures
> Yes, store now.
(D Tips
Do not store the tire pressures if snow chains
are installed.

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Care and cleaning
General information
Regular, proper care helps to maintain your vehi ­
cle's value. It can a lso be a requirement when
submitting warranty claims for corrosion damage
and paint defects on the body.
The necessary care products can be obtained
from an authorized Audi dealer or authorized
Audi Service Facility . Read and follow the instruc­
tions for use on the packaging.
A WARNING
- Us ing clean ing and care products incorrectly
can be dangerous to your health.
- Always store clean ing and care products out
of reach of children to reduce the r isk of po i­
son ing .
@ For the sake of the environment
- Preferably purchase env ironmenta lly-friend­
l y cleaning products.
- Do not d ispose of leftover cleaning and care
products with household trash.
Car washes
T he longer that deposits remain on the vehicle,
the more the surface may be damaged. High
temperatures such as those caused by sunlight increase the damag ing effect.
Befor e washing, rinse
off heavy depos its with
p lenty of water.
S tubborn depos its such as bird droppings or tree
sap are best removed with plenty of water and a
microfiber cloth.
A lso, wash t he un derside of yo ur vehicle once
road sa lt stops being used for the season .
Pressure washers
When washing your ve hicle w ith a pressure wash­
e r, a lways fo llow the operating instructions pro­
vided wi th the p ressure washer. This is especially
i mportant in rega rd to the pressure and sp raying
d istance . Do not aim the spray directly at seals on
side windows, doors, the hood, the luggage com-
Ca re and cleaning
partment lid or the panorama glass roof* or at
tires, rubber hoses, insulating material, sensors *
o r camera lenses* . Keep a distance of at least 16
in
(40 cm).
Do not remove snow and ice with a pressure
washer.
Never use cone nozz les o r high press ure nozzles .
T he water temperatu re must not be above
140 °F
(60 °().
Automatic car washes
Spray off the vehicle before washing.
Make s ure that the windows and roo f* are closed
and the windshie ld wipers are
off . Follow instruc ­
tions from the car wash ope rator, especially if
there are accessories attached to your vehicle.
If possible, use car washes that do not have
brushes .
Washing by hand
Clean the ve hicl e starting from the top and wor k­
i ng down using a soft sponge o r cleaning br ush.
U se solven t-free cleaning produ cts.
Washing vehicles with matte finish paint by
hand
T o avo id damag ing the pa int w hen washi ng, fi rst
remove dust and large pa rticl es from you r vehi­
cle . Insects, grease spots and fingerprints are
best removed w ith a special cleaner for matte
finish paint.
Apply t he product using a microf iber cloth . To
avoid damaging the paint surface, do not use too
much pressure.
Rinse the ve hicl e thoroug hly w ith wate r. Then
cl ean usi ng a neutral shampoo and a soft micro­
fiber cloth .
Rinse the ve hicl e thorough ly aga in and let it air
dry. Remove any wate r residue using a chamois.
WARNING
-On ly wash the vehicle when the ign ition is
off and follow the instr uctions from the car
185

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Care and cleaning
Component Situation Solution
Paint
Paint damage Refer to the paint number on the vehicle data label, repair
w ith touch up pa int
c;,poge 209
Spilled fuel Rinse with wate r immediately
Surface rust Rust remover, then protect with hard wax; for questions,
consult an authorized Audi dealer or authorized Aud i Serv-
ice Facility.
Corrosion Have
it removed by an authorized Audi dea ler or author-
ized Audi Service Facility.
Water no longer Protect with hard wax (at least twice per year)
beads on the surface
of clean paint
No shine even though Treat with su itable polish; then apply paint protectant if
paint has been pro- the polish that was used does not contain any protectant
tected/paint looks poor
Deposits such as in -Dampen with water immediately and remove w ith a micro-
sects, bird droppings, fiber clloth
tree sap and road salt
Grease-based con- Remove
immediat ely with a mild soap so lution
al and a
taminants such as soft cloth
cosmetics or sunblock
Carbon parts Depos its clean the same way as painted parts ¢page 185
a) Mi ld soap solution: maximum two tab lespoons of neu tral soap in 1 quart (1 lite r) of water
Interior cleaning
Component Situation Solution
Windows
Deposits Glass cleaner, then wipe dry
Decorative parts/ Deposits Mild soap solutiona>
Trim
Plastic parts
Deposits Damp cloth
He avier deposits Mild soap solution a), detergent-free plastic clean ing solu-
tion, if necessa ry
Oisplays/instru -Deposits Soft
cloth with LCD cleaner
ment cluster
Controls
Deposits Soft brush, then a soft
cloth with a mild soap solutiona>
Safety belts Deposits Mild
soap solution al, allow to dry before letting them re-
tract
187

Care and cleaning
Component Situation Solution
Te xtil es
Deposits adhering to Vacuum cleaner
artifi cial le ather , the surface
Alcan tara Water-based depos- Absorbent cloth and mild soap
solutional
its such as coffee,
tea, blood, etc.
O il-based deposits Apply a mild soap solution a), blot away the dissolved oil o r
such as oil, make-up, dye, treat afterward with water, if necessary
etc.
Special deposits such Special sta ,in remover, blot with absorbent material, treat
as ink, na il polish, la- afterward with mild soap solution, if necessary al
tex paint, shoe pol-
ish, etc.
Natural leather Fresh stains Cotton cloth w
ith a mi ld soap solutional
Water-based depos- Fresh stains: absorbent cloth its such as coffee, dried sta ins: stain remover suitable fo r leather
tea, blood, etc.
Oil-based deposits Fresh stains: absorbent cloth and stain remover suitable for
such as oil, make-up, leather
etc. dried sta
ins: oil clea ning sp ray
Special deposits such Spot remover suitable for leather
as ink, nai l polish, la -
tex paint, shoe pol-
ish, etc.
Ca re Regularly apply cond itioning cream tha t protects from light
a nd penetr ates into the ma ter ial. Use spec ia lly-co lored con -
ditioning cream, i f necessary.
Carbon parts Deposits clean the same way as plastic parts
a) Mild soap sol ution: maxim um two tablesp oons of neutral soap in 1 quart (l liter) of water
_& WARNING
The windshie ld may not be trea ted with w a­
ter-repelling windshield coating agents. Un­
favorable conditions s uch as wetness, dark­
ness, or low sun can result in increased glare .
Wipe r blade chatter is also possib le.
(D Note
- Headlights/tail light s
-Never clean headlights or ta il lights with a
dry cloth or sponge.
- Do not use any cleaning p roduct that con­
tains alcohol, because they cou ld cause
cracks to form.
- Wheels
188 -
- Never use any paint polish or other abra­
sive materials.
- Damage to the protect ive layer on the
rims such as stone chips or scratches must
be repaired immediately.
- Sensors /camera lenses
- N ever use wa rm or ho t wa ter to remove
snow or ice from the camera lens . This
could ca use the lens to crack .
- N eve r use abrasive cleaning m aterials or
a lcohol to clea n the camera lens . This
could cause scratches and c racks .
-Door windows
- Remove snow and ice on windows and ex-
terior mirrors with a plast ic scraper. To

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Emergency assistance
General information
.. Park the vehicle as far as poss ible from moving
traffic in the event of a breakdown. In the event
of a flat tire, park the vehicle on a leve l surface .
It you are on a steep h ill, be especially careful.
.. Set the parking brake.
.. Switch the emergency flashe rs on .
.. Put on a reflective vest .
.. Set up the warn ing triang le, if available .
.. Have the passengers exi t the veh icle. They
sho uld move to a safe place, for example be­
hind a guard rail.
_& WARNING
Follow the steps given above. This is for your
protection and the for the safety of other d riv ­
ers.
Equipment
Vehicle tool kit
Fig. 1 48 Luggage compartmen t: ca rgo floor cover folded
upward
The vehicle tool kit is located in the luggage com­
partment under the cargo floor cover .
.. Push on the plast ic hand le a nd lift up the cargo
floor.
.. Open the cargo floor.
Completely ret ract the vehicle jac k arm before
sto ring the vehicle jack*.
Em ergen cy a ssis tanc e
_& WARNING
-Applies to: ve hicles with jack
Improper use of the veh icle jack can cause se­
rious pe rsonal injuries.
- Never use the screw driver hex head to
tighten wheel bolts, since the bolts cannot attain the necessa ry t ightening to rque if yo u
use the hex head, po ten tially causing an ac­
cident .
- The factory-supplied jack is intended only
for your ve hicl e mode l. Under no circum­
s tances shou ld it be used to lift heavy
vehicles o r other loads; you risk i njuring
yourse lf.
- Never start the engine when the vehicle is
raised, which cou ld cause an accident .
- Support the vehicle securely with appropri ­
ate stands if work is to be performed under ­
neath the vehicle; otherwise, there is a po­
tential risk for injury.
- Never use the jack supplied with your Audi
on another vehicle, particularly on a heavier
one. The jack is only su itable for use on the
veh icle it came with .
{!) Tips
The vehicle jack * in your vehicle is mainte ­
nance-free.
Replacing wheels
Preparation
You must complete the preparation before
changing a tire .
.. Read and follow the important safety precau-
tions
<=:> page 191.
.,. Set the park ing brake .
.,. Select the P selector lever posit ion.
.,. W hen tow ing a tra iler: disconnect the trailer
from yo ur vehicle .
.. Lay out the vehi cle too l kit ¢
page 191 and the
spare tire
<=:> page 197.
191

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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
201

Consumer Information
Consumer Information
Warranty coverages
Your Audi is covered by the following warran­
ties:
- New Vehicle Limited Warranty
- Limited Warranty Against Corrosion Perfora-
tion
- Emissions Control System Warranty
- Emissions Performance Warranty
- California Emissions Control Warranty (USA
vehicles only)
- California Emissions Performance Warranty
(USA vehicles only)
Detailed information regarding your warranties
can be found in your
Warranty & Maintenance
booklet .
Operating your vehicle
outside the U.S.A. or
Canada
Government regulati ons in the United States and
Canada require that automobi les meet specific
emission regulations and safety standards.
Therefore, vehicles built for the U.S.A. and Cana ­
da differ from vehicles sold in other countries.
If you plan to take your vehicle outside the conti­
nenta l limits of the United States or Canada,
there is the poss ibility that:
- un leaded fue ls for vehicles with catalytic con­
verter may not be available;
- fuel may have a considerably lower octane rat­
ing . Improper fuel may cause engine damage;
- service may be inadequate due to lack of proper
service facilities, tools or testing equipment;
- r eplacement parts may not be readily available.
- Nav igation systems for veh icles built for the
U.S .A . and Canada will not necessarily work in
Europe, and may not work in other countries
outside of North America.
212
(D Note
Audi cannot be responsib le for mechanical
damage that could result from inadequate
f u el, service or parts ava ilability.
Audi Service Repair
Manuals and Literature
Audi Official Factory Service Manuals and Litera ­
ture are published as soon as poss ible after mod­
el introd uction . Service Manuals and literature
are available to order from the Audi Technical Lit ­
erature Ordering Center at :
www.audi.techliterature .com
Maintenance
General '
Your vehicle has been designed to help keep
maintenance requirements to a min imum. How­
ever, a certain amount of regular maintenance is
still necessary to assure your vehicle's safety,
economy and reliability . For detailed vehicle
maintena nce consult your Warranty & Mainte­
nance booklet .
Under difficult operating conditions, for exam ­
ple at extremely low outside temperatures, in
very dusty regions, whe n towing a trailer very fre­
quently, etc., some service work should be per­
formed between the intervals specified. This ap­
plies particularly to:
- oil changes, and
- cleaning or replac ing the a ir filter .
'
@) For the sake of the environment
By regularly maintain ing your vehicle, you
help make sure that em iss ion standards are
maintained, thus minimizing adverse effects
on the environment .
Important considerations for you and your
vehicle
The increasing use of electronics, sophisticated
fuel injection and emission control systems, and
the genera lly increas ing technica l complexity of ..,_

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today's automobiles, have steadily reduced the
scope of maintenance and repairs which can be
carried out by vehicle owners.
Also, safety and
environmental
concerns place very strict limits
on the nature of repairs and adjustments to en­
gine and transmission parts which an owner can perform .
Maintenance, adjustments and repairs usually re­
quire special tools, testing devices and other
equipment available to specially trained work ­
shop personnel in order to assure proper per­
formance, reliability and safety of the vehicle and
its many systems.
Improper maintenance, adjustments and repairs
can impair the operation and reliability of your
vehicle and even void your vehicle warranty .
Therefore, proof of servicing in accordance with
the maintenance schedule may be a condition for upholding a possible warranty claim made within
the warranty period.
Above all , operational safety can be adversely af­
fected, creating unnecessary risks for you and
your passengers.
If in doubt about any servicing, have it done by
your authorized Audi dealer or any other properly equipped and qualified workshop. We strongly urge you to give your authorized Audi dealer the
opportunity to perform all scheduled mainte­ nance and necessary repairs. Your dealer has the
facilities, original parts and trained specialists to keep your vehicle running properly .
Performing limited maintenance yourself
The following pages describe a limited number of
procedures which can be performed on your vehi­
cle with ordinary tools, should the need arise and
trained personnel be unavailable. Before per­
forming any of these procedures, always thor­
oughly read all of the applicable text and careful­ ly follow the instructions given . Always rigorously
observe the
WARNINGS provided .
Before you check anything in the engine com­
partment, always read and heed all WARNINGS
c::> .&. and c::> .&. in Working in the engine compart­
ment on page 155. Consumer Information
A WARNING
-
Serious personal injury may occur as a result
of improperly performed maintenance, ad­
justments or repairs .
- Always be extremely careful when working
on the vehicle. Always follow commonly ac­
cepted safety practices and general com­
mon sense. Never risk personal injury.
- Do not attempt any of the maintenance,
checks or repairs described on the following
pages if you are not fully familiar with these
or other procedures with respect to the ve­
hicle, or are uncertain how to proceed.
- Do not do any work without the proper tools
and equipment. Have the necessary work
done by your authorized Audi dealer or an­
other properly equipped and qualified work­
shop.
- The engine compartment of any motor vehi­ cle is a potentially hazardous area. Never
reach into the area around or touch the radi­
ator fan.
It is temperature controlled and
can switch on suddenly - even when the en­
gine is off and the ignition key has been re­
moved. The radiator fan switches on auto­
matically when the coolant reaches a certain
temperature and will continue to run until
the coolant temperature drops.
- Always remove the ignition key before any­
one gets under the vehicle.
- Always support your vehicle with safety
stands if it is necessary to work underneath
the vehicle . The jack* supplied with the vehi­
cle is not adequate for this purpose and
could collapse causing serious personal in­
jury.
- If you must work underneath the vehicle
with the wheels on the ground, always make
sure the vehicle is on level ground, that the
wheels are always securely blocked and that the engine cannot be started.
- Always make sure the transmission selector
lever (automatic transmission) is in P (Park
position) and the park brake is applied.
213

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Technical Modifications
Our guidelines must be complied with when tech­
nical modifications are made .
Always consult an authorized Audi dealer before
starting work on any modificat ions.
This will he lp ensure that vehicle function, per ­
formance and safety are not impaired
c> ..&. .
Attempting to work on e lectronic components
and the software used with them can cause ma l­
functions. Because of the way electronic compo­ nents are interconnected with each other, such
malfunct ions can also have an adverse affect on
other systems that are not directly involved. This
means that you risk both a substa ntial reduction
in the operational safety of your veh icle and an
i n creased wea r of ve hicle pa rts
c::> ,.&. .
Author ized Audi dealers w ill perform this work in
a profess ional and competent manner or, in spe­
cial cases, refer you to a professional company
that spec ializes in such modific atio ns.
.&, WARNING
Improper repairs and mod ifi cat ions can
change the w ay veh icle systems work and
cause damage to the veh icle and ser ious per ­
sonal injury.
(D Note
If emergency repa irs mus t be pe rformed else­
where, have the vehicle exam ined by an au­
thorized A udi dealer as soon as possib le .
Declaration of
compliance for telecom­ munications equipment
and electronic systems
The manufacturer is not liable for rad io m alfu nc ­
tions t hat are caused by unauthori zed changes to
the equipment.
Equipment
The fol low ing equipmen t comp lies w it h FCC sec­
tion 15 and RSS-Gen:
Consumer Inf ormation
- Audi adapt ive cr uise control*
- Aud i side assist*
- Electronic immob ilize r
- Remote control key
- Cell phone package*
FCC Part 15.19
This device complies with part 15 of the FCC
Rules . Operation is subject to the fo llowing two
condit ions: (1) This device may not cause harmful
interference, and (2) this device must accept any
interference rece ived, includ ing interference that
may cause undesired operation .
FCC Part 15.21
Changes or mod ificat ions not express ly approved
by the party responsible for compliance could
vo id the user's authority to operate the equ ip­
ment .
RSS-Gen
This device complies with Industry Canada's li­
cence-exempt RSSs. Operation is subject to the
follow ing two conditions:
(1) This dev ice may not cause interference; and
(2) This dev ice m ust accept any interference, in­
clud ing interfe rence that may cause undes ired
operation of the dev ice .
CNR-Gen
Le present appareil est conforme aux CNR d'ln­
dustrie Canada applicables aux appare ils radio
exemp ts de licence . L'explo itat ion est autor isee
aux deux conditions su ivantes:
1) l'appareil ne do it pas produire de b rouillage;
2) l'appareil do it accepter tout brouillage radioe­
lectr ique subi, meme si le brouillage est suscept i­
ble d'en compromettre le fonct ionnement .
215