ECU AUDI Q3 2016 Service Manual

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

Index
Lower anchorages . . . . . . . . . . . . . . . . . . . 145
Safety instructions . . . . . . . . . . . . . . . . . . . 135
Unused safety belts on t he rear seat . . . . 13 7
Ch ild se ats . . . . . . . . . . . . . . . . . . . . . . . . . . 137
Secur ing . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
C igarette lighter . . . . . . . . . . . . . . . . . . . . . . . 53
Clean ing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168
C lea ning/ remov ing ice from wi ndows . . . . . 170
Clean ing Alcantara . . . . . . . . . . . . . . . . . . . . 171
Clea ning artificia l leather ..... ... .. .. ... 171
Clea ning ca rbon parts ............. 170, 17 1
Clean ing contro ls . . . . . . . . . . . . . . . . . . . . . 170
Clea ning deco rative p arts and t rim ... 169, 170
Clea ning displays . . . . . . . . . . . . . . . . . . . . . 170
C leaning exha ust ta il pipes . . . . . . . . . . . . . 169
C lea ning plast ic parts . . . . . . . . . . . . . . . . . . 170
Clean ing textiles...................... 171
C lean ing the rims . . . . . . . . . . . . . . . . . . . . . 169
Climate con trol system . . . . . . . . . . . . . . . . . 62
Climate control system (automatic)
Ad justing the temperature . . . . . . . . . . . . . 65
Air distribution . . . . . . . . . . . . . . . . . . . . . . . 65
Air vents . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
AUTO (automatic mode) . . . . . . . . . . . . . . . 65
B lower . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Changi ng the tempe rat ure unit . . . . . . . . . 66
D efrost ing the w indshie ld . . . . . . . . . . . . . . 6 5
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Rea r window de fogger . . . . . . . . . . . . . . 64, 6 6
Recirc ulation mode . . . . . . . . . . . . . . . . . . . 65
Synchronizing . . . . . . . . . . . . . . . . . . . . . . . . 66
Climate con trol system (manual)
Ad justi ng the tempera ture . . . . . . . . . . . . . 63
Ai r dist ribution, air ven ts . . . . . . . . . . . . . . . 64
Blower . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Defrosting the windows . . . . . . . . . . . . . . . 64
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Rear window defogger . . . . . . . . . . . . . . . . . 64
Recirc ulation mode . . . . . . . . . . . . . . . . . . . 63
Closing Panorama roof . . . . . . . . . . . . . . . . . . . . . . . 37
Closing/opening by remo te con trol . . . . . . . . . . . . . . . . . . . . 29
with the cen tra l locking sw itch . . . . . . . . . . 31
with the convenience key . . . . . . . . . . . . . . . 30
W ith the doo r lock . . . . . . . . . . . . . . . . . . . . 32
Cockpit (ove rview) . . . . . . . . . . . . . . . . . . . . . . 8
238
Coming home . . . . . . . . . . . . . . . . . . . . . . . . . 41
Compartments . . . . . . . . . . . . . . . . . . . . . 54, 56
Compass in the mirror . . . . . . . . . . . . . . . . . . 47
C ompliance . . . . . . . . . . . . . . . . . . . . . . . . . . 235
Cons umer i nformation . . . . . . . . . . . . . . . . . 232
Cons umer Information . . . . . . . . . . . . . . . . . 102
Cons umption (fuel) . . . . . . . . . . . . . . . . . . . . 22
Contacting NHTSA . . . . . . . . . . . . . . . . . . . . 102
Convenience key Ind icator lights . . . . . . . . . . . . . . . . . . . . . . 71
Starting the engine . . . . . . . . . . . . . . . . . . . 69
Stopping the engine . . . . . . . . . . . . . . . . . . 70
Switc hing the ignit ion on . . . . . . . . . . . . . . 69
unlocking/locking . . . . . . . . . . . . . . . . . . . . 30
Convenience opening/clos ing
Convertible child safety seats
Convertible locking retracto r .
..... ... .. . 37
138
Activating . . . . . . . . . . . . . . . . . . . . . . . . . . 143
Deact ivating . . . . . . . . . . . . . . . . . . . . . . . . 144
U sing to secure a child safety seat . . . . . . 143
Coo lant system . . . . . . . . . . . . . . . . . . . . . . . 183
Cooling mo de ( au tomat ic cli ma te co ntrol sys-
te m) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Cooling mode (manual climate control sys-
tem) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Cooling system
Coolant temperature . . . . . . . . . . . . . . . . . . 10
Ind icator light . . . . . . . . . . . . . . . . . . . . . . . 14
Cooling System Expansion tank . . . . . . . . . . . . . . . . . . . . . . 183
Co rnering lights . . . . . . . . . . . . . . . . . . . . . . . 80
Crossing water . . . . . . . . . . . . . . . . . . . . . . . 162
Cruise cont ro l sys tem
Changing speed . . . . . . . . . . . . . . . . . . . . . . 75
Desc ription . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Preselecting speed . . . . . . . . . . . . . . . . . . . . 75
Switc hing off . . . . . . . . . . . . . . . . . . . . . . . . 75
switching on . . . . . . . . . . . . . . . . . . . . . . . . . 74
C u p ho lders . . . . . . . . . . . . . . . . . . . . . . . . 54, 55
C u rrent consumpt ion . . . . . . . . . . . . . . . . . . . 22
D
Data recorder . . . . . . . . . . . . . . . . . . . . . . . . 150
Date disp lay . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Dayt ime run ning ligh ts . . . . . . . . . . . . . . . . . 39

Index
Rear window defogger 64,66
Recirculation mode Automatic climate control system . . . . . . . 65
manual climate control system . . . . . . . . . . 63
Refueling .. .. .. .. ... . ...... ... .. .. .. . 175
Remote control key . . . . . . . . . . . . . . . . . . . . 28
LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Replacing the battery . . . . . . . . . . . . . . . . . 29
Synchroni zation . . . . . . . . . . . . . . . . . . . . . . 29
unlocking/locking . . . . . . . . . . . . . . . . . . . . 29
Repair manuals . . . . . . . . . . . . . . . . . . . . . . . 232
Repairs Airbag system . . . . . . . . . . . . . . . . . . . . . . 125
Replacement key . . . . . . . . . . . . . . . . . . . . . . 28
Replacing Light bulbs . . . . . . . . . . . . . . . . . . . . . . . . . 221
Replacing windsh ield wiper b lades . . . . . . . . 46
Replacing wiper blades . . . . . . . . . . . . . . . . . 47
Reporting Safety Defects . . . . . . . . . . . 102, 103
Reset button (trip odometer) . . . . . . . . . . . . 23
Resetting the trip odometer . . . . . . . . . . . . . 23
Retract New brake pads . . . . . . . . . . . . . . . . . . . . . 154
Retractor . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Reversible mat . . . . . . . . . . . . . . . . . . . . . . . . 60
Rims . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205
Roof rack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Roof load . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 Safety belts
. . . . . . . . . . . . . . . . . . . . . . 104, 107
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . 170
Danger to passengers who do not wear a
safety belt . . . . . . . . . . . . . . . . . . . . . . . . . 105
Fastening . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Height adjustment . . . . . . . . . . . . . . . . . . . 109
Improperly worn . . . . . . . . . . . . . . . . . . . . 110
Not worn ....................... .. . 105
Safety belt pos ition . . . . . . . . . . . . . . . . . . 108
Safety instructions . . . . . . . . . . . . . . . . . . . 106
Securing child safety seats . . . . . . . . . . . . 141
Special considerations for pregnant wom-
en . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
Unfastening . . . . . . . . . . . . . . . . . . . . . . . . 109
Warning/indicator light . . . . . . . . . . . . . . 104
Warning light . . . . . . . . . . . . . . . . . . . . . . . . 15
Worn properly . . . . . . . . . . . . . . . . . . . . . . 106
Safety compliance sticker . . . . . . . . . . . . . . 229
Safety equ ipment . . . . . . . . . . . . . . . . . . . . . . 95
Safety features for occupant restraint and protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Safety guidelines Seat adjustment . . . . . . . . . . . . . . . . . . . . . 49
Safety instructions Engine compartment . . . . . . . . . . . . . . . . . 177
for side curtain airbags . . . . . . . . . . . . . . . 131
for using child safety seats . . . . . . . . . . . . 135
for using safety belts . . . . . . . . . . . . . . . . . 106
Monitoring the Advanced Airbag System 124
Roof weight . . . . . . . . . . . . . . . . . . . . . . . . . 57 Seat
s
Safe driving habits . . . . . . . . . . . . . . . . . . . . . 95
Safety Airbag system . . . . . . . . . . . . . . . . . . . . . . 112
Belts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Cargo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Correct seating position . . . . . . . . . . . . . . . 96
Pedal area . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Safety belt position . . . . . . . . . . . . . . . . . . . 108
Safety belt height adjustment . . . . . . . . . 109
Safety belts worn by pregnant women . . . 109
Safety belt pretensioner Service and disposal.............. .... 111
244
Number of seats 104
Seat adjustment Driver 's seat . . . . . . . . . . . . . . . . . . . . . . . . . 49
Front passenger's seat . . . . . . . . . . . . . . . . . 50
Head restraints . . . . . . . . . . . . . . . . . . . . . . 98
Safety guidelines . . . . . . . . . . . . . . . . . . . . . 49
Seat belts
refer to Safety belts . . . . . . . . . . . . . . . . . . 104
Seat heating Automatic climate control system . . . . . . . 65
Manual climate control system . . . . . . . . . . 63
Seat heating (automatic climate control sys-
tem) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Seating capac ity . . . . . . . . . . . . . . . . . . . . . . 104
Seating position Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Front passenger . . . . . . . . . . . . . . . . . . . . . . 97