2018 AUDI Q3 engine

Check ing and F illing
Checking and Filling
Fuel
Gasoline grade
A pp lies to: ve hicles w ith gaso li ne engines
The correct gasoline grade is stated on the inside
of the fuel filler door .
The vehicle is equipped with a catalytic converter
and must only be driven w ith
unleaded ga soli ne.
Aud i recommends using TOP TIER Detergent Gas­
oline. Additional information on TOP TIER Deter­
gent Gaso line can be found on the offic ial web­
site (www .toptiergas.com) .
The individua l gasoline grades are differentiated
by
octane ratings . This value is given with (R +M)/
2 equating to AK I or in RON.
The fo llow ing headings match the co rrespon ding
sticker in the fue l fi ller door .
UNLEADED FUEL ONLY MIN . (R+M) /2 87
Regular/ MIN. RON
91 Regular
Use regu lar gaso line with minim um 87 AKI/
9 1 RON ~@ .
The max imum engine power is only reached if
p rem ium gasol ine
91 A KI/ 95 RO N is used.
0 Note
- Fi lli ng the tank just one t ime with leaded
fuel or o ther meta llic additives will cause
p ermanent de ter iorat io n to the catalyt ic
conve rter func tion.
- Whe n gasoline with an octane rati ng that is
too low is used, high speeds o r heavy engi ne
l oad can lead to engine damage .
(D Tips
The vehicle may be fi lled wi th fu el tha t h as a
higher octane ra ting than wh at is required by
t he engine .
152 ·
Blended gasoline
Use of gasoline containing alcohol or MTBE
(methyl tertiary butyl ether)
Yo u may use unleaded gasoline b lended wi th al­
cohol o r MTBE (commonly referred to as oxygen ­
ates) if the blended mixt ure meets the fo llowing
criteria :
Blend of ga soline methanol (wood alcohol or
meth yl alcohol)
- Anti-knock index must be 87 AK I or h igher.
- Blend must contain no more than 3% metha-
nol.
- Blend must contain more tha n 2% co -solvents.
Blend of gasoline and ethanol (grain alcohol or
ethyl alcohol )
-Anti -knock index must be 87 AK I or higher .
- Blend must not co ntai n mo re t han
15% etha-
nol.
Blend of ga soline and MTBE
- Anti-knock index must be 87 AKI or higher.
- Blend must contain not more than 15% MTBE.
Seasonally adjusted gasoline
Many gasoline grades a re blended to pe rform es­
pec ially well for w in ter o r su mme r dr iv ing . D ur ­
i ng seasonal change-ove r, we s ugges t th at yo u
fill up at busy gas stat ions where the seasona l
adjustment is more likely to be made in time.
(D Note
- Meth ano l fuels which do not meet these re­
q uirements may cause corrosion and dam ­
age to plastic and rubber com ponents in the
fuel system.
- Do not use fue ls that fa il to meet the speci­
fied cr iteria in th is chapter .
-If you are una ble to dete rm ine whether or
not a part icu lar f uel blend meets the speci ­
fications, ask yo ur service station or its fue l
supplier.
- Do not use fue l for which the contents can­
not be ident ified .

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-Fuel system damage and performance prob­
l ems resulting from the use of fuels differ­
ent from those specified are not the respon­
sibility of Audi and are not covered under
the New Vehicle or the Emission Control
System Warranties.
- If you experience a loss of fuel economy or
driveability and performance problems due
to the use of one of these fuel blends, we
recommend that you switch to unblended
fuel.
Gasoline additives
A majo r concern among many auto manufactur­
ers is carbon deposit build-up caused by the type
of gasoline you use.
Although gasoline grades d iffer from one manu­
facturer to another, they have certain things in
common. All gasoline grades contain substances
that can cause deposits to collect on vital engine parts, such as fuel injectors and intake valves . Al­
though most gasoline brands include additives to keep engine and fuel systems clean, they are not
equally effective.
Audi recommends using TOP TIER Detergent Gas­
oline . For more information on TOP TIER Deter­
gent Gasoline, please go to the official website
(www.toptiergas.com).
After an extended period of using inadequate
fuels, built-up carbon deposits can rob your en­ gine of peak performance.
(}) Note
-Damage or malfunction due to poor fuel
quality is not covered by the Audi New Vehi ­
cle Limited Warranty.
Checking and Filling
Refueling
Fueling procedure
Fig. 132 Right rear s ide o f th e ve hicle : ope ning the fuel
filler door
Fig. 133 Fuel filler door with attached fue l cap
The fuel filler door is unlocked or locked by the
central locking system.
"' Press on the left side of the fuel filler door to
open
r=.> fig. 132 .
"'Unscrew the tank cap counterclockwise.
"' Place the cap from above on the open fuel filler
door
r=.> fig. 133.
"'Insert the fuel pump nozzle a ll the way into the
fuel filler neck.
"' Start refueling. As soon as the fuel pump noz­
zle turns off the first time, the fuel tank is full.
Do not continue fueling, or else the expansion
space in the tank will be filled with fuel.
"' Pull the pump nozzle out of the tank filler neck
five seconds after it has switched off, so that
the rest of the fuel can flow out of the pump
nozzle into the filler neck.
"' Turn the fuel cap clockwise until you hear it
lock.
"' Then press on the left side of the tank door un-
til it latches.
Ill>
153

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Fuel filler door emergency release
If the central locking system is faulty, the fuel filler door can be unlocked manually.
Fi g. 134 Right si de tr im j:>ane l in the luggage compart­
ment: emergen cy release mechani sm
The emergency opening mechanism is located
behind the right side trim panel in the luggage
compa rtme nt.
• Remove the cover in the side panel.
• Loosen the strap from its bracket -arrow- and
pull on it carefully<=:>
fig. 134 c:>(D . The filler
doo r is released .
• Press on the lef t side of the fuel fille r doo r to
open it
<=:> page 153, fig. 132 .
(D Note
Onl y pull o n the loop until you feel resi stance.
You will not he ar it relea se. O therwise yo u
co uld d amage the eme rge ncy re lea se me ch a­
nism .
Catalytic converter
The vehicle may o nly be dr iven with unleaded
gasoline, otherwise the catalyt ic converter will be
destroyed .
N ever d rive until the tank is comp letely e mpty .
The irregular supply of f uel th at resul ts from that
can cause engine m isfires. Uncombus ted f uel will
enter the exhaust system, wh ic h can cau se ove r­
heat ing and damage to the catalyt ic converter .
A WARNING
-The temperature in the ex ha ust system is
high, both when dr iving and after stopping
the engine.
-
Checking and Filling
- Never touch the exhaust tail pipes o nce they
have become hot . This cou ld resu lt in burns.
- Do not par k your vehicle over flammable
mate ria ls s uch as grass or leaves because
the high temperature of the emissions con­
trol system could start a fire.
- Do not app ly unde rbody protectant in the
exhaust system area, because this increases
the risk of fire.
Engine compartment
' Working in the engine compartment
Special care is required if you are working in the
engine compartmen t
For work in the engine compartment, such as
checking and fill ing fluids, there is a risk of in­
jury, scalding, accident s, and burns . For thi s
reason, follow all the warnings and general
s afety pre caution s provided in the following in ­
formation. The engine compartment is a dan­
gerous a rea on the vehicle .
<=:> .&.
A WARNING
-Turn the engine off .
- Sw itch th e ignition off .
- Se t the p arking brak e.
- M ove the selec tor lever i nto the P position.
- Never open the hood whe n th ere is steam o r
coo lant escaping from the engine comp art­
men t, bec ause there is a risk that yo u could
be burned. Wai t until no s te a m o r coolan t is
escaping .
- Le t t he eng ine cool down.
- Keep children away from th e eng in e com-
p ar tme nt.
- N ever sp ill fluid s on a ho t engine . These flu­
i d s (su ch as the free ze p ro te ct ion contained
in the coolant) c an catch fi re.
- Avoid short circui ts in th e electrical system.
- When working in the engine compartment,
remember that the radiator fan can swi tch
o n even if t he igni tion i s sw itched off, w hich
i n cre a ses the r is k of person al injury.
~
155

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.

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Opening/closing the hood
The hood is released from inside the vehicle.
Fig. 135 Driver footwell: release lever
Fig. 136 Rocker switch under the hood
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Make sure the wiper arms are not raised up from
the windshield. Otherwise the paint could be
damaged.
Opening the hood
.. With the driver's door open, pull the lever be­
low the instrument panel in the direction of the
arrow¢fig.135.
Checking and Filling
.. Raise the hood slightly¢,& .
.. Press the rocker switch under the hood upward
¢fig. 136. This releases the catch .
.. Open the hood.
Closing the hood
.. Push the hood down until you override the
force of the strut .
.. Let the hood fall lightly into the latch.
Do not
press it in.
c> ,&.
A WARNING
-
-Never open the hood when there is steam or
coolant escaping from the engine compart­
ment, because there is a risk that you could
be burned. Wait until no steam or coolant is
escaping.
- If the hood is not latched completely, it
could fly up while you are driving and ob­
struct your vision.
- For safety reasons, the hood must always be
closed securely while driving. Because of
this, always check the hood after closing it
to make sure it is latched correctly. The
hood is latched if the front corners cannot
be lifted.
- If you notice that the hood is not latched
while you are driving, stop immediately and
close it, because dr iving when the hood is
not latched increases the risk of an accident .
157

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
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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

Checking and Filling
properly diagnosed. Keep in mind that the
accurate measurement of oil consumption requires great care and may take some
time. An author ized Audi dealer has instruc­
tions about how to measure oil consump­
tion accu rately.
Checking the engine oil level and adding
engine oil
F ig. 138 Oil d ipstick (example): c hecki ng the engine oi l
level
F ig. 139 Engine compartment: eng ine o il filler opening
cove r
Observe the safety precautions c:> page 155,
Working in the engine compartment .
Checking the engine oil level
- Park the vehicle on a level surface.
- Shut the engine
off when it is warm. Wait ap-
0 N
-N ~ a, (D
prox imately two m inutes so that the engine oil
can flow back into the oil pan.
- Open the hood
c:> page 157.
-Remove the oi l dipstick <=> page 158, fig . 137,
wipe it off with a clean cloth and insert it all the
way in again.
- Remove the oil dipstick again and then read the
oil level
c:> table on page 160.
-Add engine oil if necessary.
160
Areas on the o il dipstick c::> fig. 138.
(D If the engine oil leve l is just before the
mark ing
(D , then engine oil must be added .
See
c:> @ .
@ Do no
t add engine oil.
Adding engine oil
- Unscrew the cap
't=:rl c:> fig. 139 for the engi ne
oil fil ling open ing
c:>page 158, fig. 137.
- Carefully add 0 .5 quart (0.5 lite r) of the correct
oil
<=> page 158.
-Check the oil level again after two minutes .
- Add a smaller amount of engine oil if necessa-
ry . The mark ing @ c:>
fig. 138 must not be ex­
ceeded c:>Cl) .
- Screw the eng ine oil filler cap
't=:rl and slide the
dipstick all the way in .
.&, WARNING
-When adding eng ine oi l, do not let o il d rip
on to hot engine components. Th is increases
t he risk of a fire.
- You must sea l the cap on the oi l filler open­
ing correct ly so that oi l does not leak ou t
onto the hot engine and exha ust system
when the engine is running, beca use this is
a fire hazard .
- Always clean skin thoro ughly if it comes into
contact with engine oi l.
(D Note
- The engine o il level mus t not be under the
marking
(D , because this increases the risk
of engine damage .
- After add ing engi ne oil, the oil leve l must
not be above the mar king @, because this
increases the risk of catalytic converte r and/
or engine damage . Do not start the engine.
Contact an authorized A udi dealer or au­
thorized Aud i Service Facility to have excess
engine oil extracted if necessary.
- Do not mix any addit iona l lubr icants into
the engine oil. Damage caused by such addi-
t ives is not covered by the warranty. .,_