2016 AUDI Q3 check engine

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 177. 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.
233

Consumer inf orm ation
@ For the sake of the env ironment
- Changing the engine settings wi ll adversely
affect emission levels. Th is is detrimental to
the environment and increases fuel con­
sumption.
- A lways observe environmental regu lations
when disposing of old engine o il, used brake
fl ui d, d irty engine coolant, spent batteries
or worn out tires.
- Undeployed airbag modules and pretension­
ers mig ht be classified as Perchlorate Mate­
rial -special handl ing may apply, see
www.dtsc .ca.gov/hazardouswaste/perchlo­
r ate. When the vehicle or parts of the re­
straint system including airbag modu les
safety be lts wi th pretensioners are scrap­
ped, all applicab le laws and regulations
must be observed. Your authorized Audi
dealer is familiar with these requirements
and we recommend that you have your deal­ er perform this service for you.
Accessories and technical changes
Additional accessories and parts replacement
Always consult an authorized Audi dealer before
purchasing accessories.
Your vehicle incorporates the latest safety design
features ensuring a high standard of active and passive safety.
This safety could be comp romised by non-ap­
proved changes to the vehicle . For this reason, if
parts have to be replaced, please observe the fo l­
lowing points when insta lling addit ional accesso­
ries:
Approved Audi accessories and genuine Audi parts are available from author ized Audi dealers.
These dealers also have the necessary facilities,
too ls and trained specialists to install the parts
and accessories properly.
234
A WARNING
-
Using the wrong spare parts or using non-ap-
proved accessories can cause damage to the
vehicle and serious personal injury.
- Use only accessories expressly approved by
Aud i and genuine Audi spare parts
- These parts and accessor ies have been spe­
cially designed to be used on your vehicle.
- Never install accessor ies such as telephone
cradles or beverage holders on airbag covers
or w ith in the airbag deployment zones. Do­
ing so will increase the risk of injury if a ir­
bags are triggered in an accident!
- Before you check anything in the eng ine
compartment, always read and heed all
WARN INGS
Qpage 177.
(D Note
-If items other than genu ine Audi spare
parts, add-on equipment and accessory
items are used or if repair work is not per­
formed a ccording to specified methods, this
c an resul t in severe damage to you r vehi­
cle's eng ine and body (such as corrosion)
and adve rsely af fect your vehicle's war ranty.
- I f emergency repai rs must be performed
elsewhere, have the vehicle exam ined by an
authorized A udi dealer as soon as possib le .
- T he manuf acture r ca nnot be held liable for
damage which occurs d ue to failure to com ­
ply with these stipulations.
Technical Modifications '
Our guidelines must be complied with when tech ­
nical modifications are made .
Always consult an a uthorized Audi de aler bef ore
sta rt ing work on any modifica tions.
This will help ensure that vehicle fu nction, per­
fo rmance and safety are not impaired
Q ,& .
Attempting to work on electronic components
and the software used with them can cause mal­
funct io ns. Because of the way elect ronic compo­
nen ts a re interconnected with each othe r, such
malfunc tions c an also have an adverse affect on
othe r systems that are not d irectl y involved. This ..,.

Important warnings when working on the
battery . . . . . . . . . . . . . . . . . . . . . . . . . . . .
187
Jump starting . . . . . . . . . . . . . . . . . . . . . . . 223
Replacing the battery . . . . . . . . . . . . . . . . 190
Winter operation . . . . . . . . . . . . . . . . . . . . 187
Working on the battery . . . . . . . . . . . . . . . 187
Before driving . . . . . . . . . . . . . . . . . . . . . . . . . 95
Belt tensioners . . . . . . . . . . . . . . . . . . . . . . . 110
Blended gasoline . . . . . . . . . . . . . . . . . . . . . 173
Blower
Automatic climate control system . . . . . . .
65
Manual climate control system . . . . . . . . . . 63
Booster seats . . . . . . . . . . . . . . . . . . . . . . . . 140
Brake fluid
Changing the brake fluid . . . . . . . . . . . . . .
186
Checking the brake fluid level . . . . . . . . . . 186
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154
Brake booster . . . . . . . . . . . . . . . . . . . . . . . 154
New brake pads . . . . . . . . . . . . . . . . . . . . . 154
Parking brake . . . . . . . . . . . . . . . . . . . . . . . . 71
Brake system
Brake fluid . . . . . . . . . . . . . . . . . . . . . . . . .
186
Brake fluid specifications for refill and re ­
placement . . . . . . . . . . . . . . . . . . . . . . . . . 186
Brake light defective . . . . . . . . . . . . . . . . . .
18
Fluid reservoir . . . . . . . . . . . . . . . . . . . . . . 186
Warning/indicator lights . . . . . . . . . . . . . . . 13
Worn brake pads symbol . . . . . . . . . . . . . . . 16
Braking
Brake assist . . . . . . . . . . . . . . . . . . . . . . . .
151
Emergency braking funct ion . . . . . . . . . . . . 73
Starting on inclines . . . . . . . . . . . . . . . . . . . 73
Break-in period
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
159
Breaking in . . . . . . . . . . . . . . . . . . . . . . . . . . 159
New tires . . . . . . . . . . . . . . . . . . . . . . . . . . 198
Bulbs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221
C
California Proposition 65 Warning . . . . . . . 178
Battery specific . . . . . . . . . . . . . . . . . . . . . 188
Capacities . . . . . . . . . . . . . . . . . . . . . . . . . . . 230
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . 179
Caps for wheel bolts , removing . . . . . . . . . . 215
Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168
Index
Cargo area
refer to Loading the luggage compart-
ment...... ... .. .. .................
100
Cargo floor . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Catalytic converter . . . . . . . . . . . . . . . . . . . . 159
Center armrest . . . . . . . . . . . . . . . . . . . . . . . . 51
Centra l locking . . . . . . . . . . . . . . . . . . . . . . . . 27
Central locking sw itch . . . . . . . . . . . . . . . . . 31
Convenience key . . . . . . . . . . . . . . . . . . . . . . 30
Emergency locking . . . . . . . . . . . . . . . . . . . . 32
Luggage compartment lid . . . . . . . . . . . . . . 33
Panorama roof . . . . . . . . . . . . . . . . . . . . . . . 37
Powe r windows . . . . . . . . . . . . . . . . . . . . . . 3 7
Remote control key . . . . . . . . . . . . . . . . . . .
29
Certification . . . . . . . . . . . . . . . . . . . . . . . . . 235
Changing engine oil . . . . . . . . . . . . . . . . . . . 182
Checking
Engine coolant level . . . . . . . . . . . . . . . . . .
183
Child restraints
Danger of using child restraints in the front
seat....... ... .. .. ................ .
113
Where can I get additional information
about child restraints and their use? . . . .
149
Child restraints system anchors. . . . . . . . . . 144
Child safety . . . . . . . . . . . . . . . . . . . . . . . . . .
132
Important safety instructions for using child
safety seats . . . . . . . . . . . . . . . . . . . . . . . .
135
Important th ings to know when driving with
children . . . . . . . . . . . . . . . . . . . . . . . . . . .
132
Installing a child restraint using the LATCH
system . . . . . . . . . . . . . . . . . . . . . . . . . . . .
146
Mounting and re leasing the anchorage
hook . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
146
Tether anchors . . . . . . . . . . . . . . . . . . . . . . 147
Tether s traps . . . . . . . . . . . . . . . . . . . . . . . 147
Child safety lock
Rear doors . . . . . . . . . . . . . . . . . . . . . . .
35, 36
Child safety seats
Booster seats . . . . . . . . . . . . . . . . . . . . . . .
140
Convertible child seats . . . . . . . . . . . . . . . 138
Convertible locking retractor . . . . . . . . . . 143
Danger of using child restraints in the front
seat...... .... .. .. ............... ..
113
How do I properly install a child safety seat
in my vehicle? . . . . . . . . . . . . . . . . . . . . . . .
135
Infant seats . . . . . . . . . . . . . . . . . . . . . . . . 137
LATCH system . . . . . . . . . . . . . . . . . . . . . . 146
237

Index
Engine compartment . . . . . . . . . . . . . . . . . . 179
Opening the hood . . . . . . . . . . . . . . . . . . . 177
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . 179
Safety instructions . . . . . . . . . . . . . . . . . . . 177
Working the engine compartment . . . . . . 177
Engine coolant system ................ .
Adding coolant .................. ... .
Checking coolant level ............ ... .
Checking the engine coolant level .. .. .. .
Radiator fan .. .. ................... .
Engine hood 183
184
183
183 18S
Closing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . 179
Adding . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181
Addit ives. . . . . . . . . . . . . . . . . . . . . . . . . . . 181
Changing . . . . . . . . . . . . . . . . . . . . . . . . . . 182
Checking the oil level . . . . . . . . . . . . . . . . . 181
Dipstick. . . . . . . . . . . . . . . . . . . . . . . . . . . . 181
Indicator light . . . . . . . . . . . . . . . . . . . . . . . 17
Oil consumption . . . . . . . . . . . . . . . . . . . . . 180
Oil grades . . . . . . . . . . . . . . . . . . . . . . . . . . 179
Pressure malfunction . . . . . . . . . . . . . . . . . 15
Sensor defective . . . . . . . . . . . . . . . . . . . . . . 17
Specif ication and viscos ity . . . . . . . . . . . . . 179
Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181
Engine speed limitation . . . . . . . . . . . . . . . . . 17
Environment Catalytic converter . . . . . . . . . . . . . . . . . . . 159
Disposing of your vehicle battery . . . . . . . 190
Driving at high speeds . . . . . . . . . . . . . . . . 161
Fuel . .. .. .. .. .. ... .. ..... ..... .. .. . 175
Leaks under your vehicle . . . . . . . . . . . . . . 177
Letting the vehicle stand and warm up . . . 161
Proper disposal of drained brake flu id . . . 186
Proper disposal of drained engine coolant 184
Proper disposal of drained engine o il 181, 182
Recycling used engine oil . . . . . . . . . . . . . 181
Roof rack . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 7
Unleaded fuel . . . . . . . . . . . . . . . . . . . . . . . 173
What should I do with an old battery? 190
EPC
refer to Electronic power control . . . . . . . . 17
ESC Automatic post-collision braking system . 152
ESC offroad mode . . . . . . . . . . . . . . . . . . . . . 152
Event Data Recorder (EDR) . . . . . . . . . . . . . 150
Expansion tank . . . . . . . . . . . . . . . . . . . . . . . 183
240
Exterior lighting . . . . . . . . . . . . . . . . . . . . . . . 39
Exterior mirrors Adjusting . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
F
Fan
Radiator 185
Fastening Booster seats . . . . . . . . . . . . . . . . . . . . . . . 140
Convertible child safety seats . . . . . . . . . . 138
Infant seats . . . . . . . . . . . . . . . . . . . . . . . . 137
Floor mats . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Fold ing chocks . . . . . . . . . . . . . . . . . . . . . . . 212
Folding the rear seats . . . . . . . . . . . . . . . . . . . 59
Foot pedals . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
For the sake of the env ironment
Environmentally-friendly driving . . . . . . . 160
Gasoline fumes and the env ironment . . . . 175
Rear window defogger . . . . . . . . . . . . . . . . . 64
Refueling . . . . . . . . . . . . . . . . . . . . . . . . . . 175
Front airbags Description . . . . . . . . . . . . . . . . . . . . . . . . . 116
How they work . . . . . . . . . . . . . . . . . . . . . . 120
Frontal collisions and the laws of physics . . 105
Front seats Adjusting . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Child restraints in the front seat . . . . . . . . 113
also refer to Seats . . . . . . . . . . . . . . . . . . . . 49
Fuel Additives. . . . . . . . . . . . . . . . . . . . . . . . . . . 173
Blended gasoline . . . . . . . . . . . . . . . . . . . . 173
Current consumption . . . . . . . . . . . . . . . . . . 22
Filler neck..... .. .. ............... .. 174
Fuel gauge . . . . . . . . . . . . . . . . . . . . . . . 10, 11
Gasoline . . . . . . . . . . . . . . . . . . . . . . . . . . . 173
Gasoline add it ives . . . . . . . . . . . . . . . . . . . 174
Low fuel level symbol . . . . . . . . . . . . . . . . . 17
Octane rating . . . . . . . . . . . . . . . . . . . . . . . 173
Recommendation . . . . . . . . . . . . . . . . . . . . 173
Refueling . . . . . . . . . . . . . . . . . . . . . . . . . . 175
Saving fuel . . . . . . . . . . . . . . . . . . . . . . . . . 160
Tank capacity . . . . . . . . . . . . . . . . . . . . . . . 230
Tank system . . . . . . . . . . . . . . . . . . . . . . . . . 17
Fuel economy messages (efficiency program)
24