2018 AUDI Q3 open gas tank

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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.

Index
Current consumption . . . . . . . . . . . . . . . . . . 19
Fuel gauge . . . . . . . . . . . . . . . . . . . . . . . . . 8, 9
Fuel tank capacity ................... 210
Gasoline . . . . . . . . . . . . . . . . . . . . . . . . . . . 152
Gasoline additives . . . . . . . . . . . . . . . . . . . 153
Saving fuel . . . . . . . . . . . . . . . . . . . . . . . 57, 81
Fuel economy messages (efficiency program) .21
Fueling Fuel filler door emergency release . . . . . . 155
F uel gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
F uel tank capacity . . . . . . . . . . . . . . . . . . . 210
Opening the fuel filler door . . . . . . . . . . . . 153
Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199
G
Garment hooks . . . . . . . . . . . . . . . . . . . . . . . . 46
Gas discharge lamps . . . . . . . . . . . . . . . . . . . 201
Gasoline . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152
Octane rating . . . . . . . . . . . . . . . . . . . . . . . 152
Recommendation . . . . . . . . . . . . . . . . . . . . 152
Generator (indicator light) . . . . . . . . . . . . . . . 13
Glossary of tire and loading terminology . . 169
Glove compartment . . . . . . . . . . . . . . . . . . . . 45
Gross Vehicle Weight Rating (GVWR) . . . . . 209
Ground clearance . . . . . . . . . . . . . . . . . . . . . . 66
H
Headlight range control . . . . . . . . . . . . . . . . . 33
Headlights Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . 186
H eadlight range control . . . . . . . . . . . . . . . 33
Head restraints . . . . . . . . . . . . . . . . . . . . . . . 100
Adjusting .. .. ................ 43, 44, 100
Removing and installing . . . . . . . . . . . . . . . 44
Heated Exterior mirrors . . . . . . . . . . . . . . . . . . . . . . 36
Rear window (automatic climate control sys-
tem) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Rear window (manual climate control sys -
tem) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Seats (automatic climate control system) . 55
Washer nozzles . . . . . . . . . . . . . . . . . . . . . . 38
Heavy clothing and safety belts . . . . . . . . . . 108
High beams . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Hill descent assist ... . .. .. ...... .. .. .. .. 91
Hill descent control . . . . . . . . . . . . . . . . . . . . 70
220
Hill hold assist . . . . . . . . . . . . . . . . . . . . . . . . 65
also refer to Hill hold assist . . . . . . . . . . . . 65
Hold ass ist (hill) . . . . . . . . . . . . . . . . . . . . . . . 65
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
How are child restraint system anchors relat-
ed to child safety . . . . . . . . . . . . . . . . . . . . . 147
How many a irbags does my vehicle have? . . 120
How safety belt pretensioners work 112
I
Ignition
Switching on and off (convenience key) . . . 61
Switching on and off (ignition lock) . . . . . . 60
Imbalance (wheels) . . . . . . . . . . . . . . . . . . . 175
Immobilizer . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Important things to do before driving . . . . . 97
Improperly worn safety belts . . . . . . . . . . . 112
Indicator lights . . . . . . . . . . . . . . . . . . . . . . . . 10
Airbag system . . . . . . . . . . . . . . . . . . 124, 125
PASSENGER AIR BAG OFF . . . . . . . . . . . . . 125
Infant seats . . . . . . . . . . . . . . . . . . . . . . . . . 140
Inspection interval . . . . . . . . . . . . . . . . . . . . 165
Installing child safety seats Safety belts . . . . . . . . . . . . . . . . . . . . . . . . 144
Installing the upper tether strap on the an­
chorage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150
Instrument cluster . . . . . . . . . . . . . . . . . . . . . . 8
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . 187
Instruments . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Adjusting the lighting . . . . . . . . . . . . . . . . . 35
Interior lighting . . . . . . . . . . . . . . . . . . . . . . . 35
Interior lighting . . . . . . . . . . . . . . . . . . . . . . 35
Interval mode (windshield wipers) . . . . . . . . 38
J
Jack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194
Jump-starting . . . . . . . . . . . . . . . . . . . . . . . . 203
Jumper cables . . . . . . . . . . . . . . . . . . . . . . . . 204
K
Key........ .. .. .. .. .. ... .......... ... 23
Key not recognized . . . . . . . . . . . . . . . . . . . 63
Key recognition . . . . . . . . . . . . . . . . . . . . . . 51
Key replacement . . . . . . . . . . . . . . . . . . . . . 23
Replacing the battery . . . . . . . . . . . . . . . . . 23