2018 AUDI Q3 ECU

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Safety belts . . . . . . . . . . . . . . . . . . . . . . 106
General information . . . . . . . . . . . . . . . . . 106
Why use safety belts? . . . . . . . . . . . . . . . . 107
Safety belts . . . . . . . . . . . . . . . . . . . . . . . . 109
Belt tensioners . . . . . . . . . . . . . . . . . . . . . . 112
Airbag system . . . . . . . . . . . . . . . . . . . . 114
Important information . . . . . . . . . . . . . . . 114
Front a irbags . . . . . . . . . . . . . . . . . . . . . . . 118
M on itor ing the Advanced Airbag System . 124
Side airbags . . . . . . . . . . . . . . . . . . . . . . . . 128
S ide curtai n airbags . . . . . . . . . . . . . . . . . . 131
Child safety . . . . . . . . . . . . . . . . . . . . . . 134
I mpor tant info rmation . . . . . . . . . . . . . . . 134
C hi ld safety seats . . . . . . . . . . . . . . . . . . . . 14 0
Secur ing c hild safety sea ts . . . . . . . . . . . . 14 4
L ATCH system ( lowe r anchorages and
tethers for chi ldren) . . . . . . . . . . . . . . . . . 14 7
Additional information . . . . . . . . . . . . . . . 151
Maintenance and Care . . . . . . . . . . . 152
Checking and Filling . . . . . . . . . . . . . 152
F ue l ... .. .... ............... .. ..... 152
Refueling . . . . . . . . . . . . . . . . . . . . . . . . . . 153
Cata lytic converter . . . . . . . . . . . . . . . . . . . 155
Eng ine compartment . . . . . . . . . . . . . . . . . 155
E ng ine oil . . . . . . . . . . . . . . . . . . . . . . . . . . 158
Cooling system . . . . . . . . . . . . . . . . . . . . . . 162
B ra ke flu id . . . . . . . . . . . . . . . . . . . . . . . . . 163
B at tery . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163
W indshield was her system . . . . . . . . . . . . 165
Service inte rval display . . . . . . . . . . . . . . . 165
Wheels ..... .. ... ..... ... .. .. .... . 166
Wheels and Tires . . . . . . . . . . . . . . . . . . . . 166
Tire press ure monitoring system 183
Care and cleaning . . . . . . . . . . . . . . . . 185
General information . . . . . . . . . . . . . . . . . 185
Ca r washes . . . . . . . . . . . . . . . . . . . . . . . . . 185
C leaning and care information . . . . . . . . . 186
Placing your veh icle out of service . . . . . . 190
Do It Yourself . . . . . . . . . . . . . . . . . . . . 191
Emergency assistance . . . . . . . . . . . 191
General information . . . . . . . . . . . . . . . . . 191
Equipment . . . . . . . . . . . . . . . . . . . . . . . . . 191
Table of contents
Replacing wheels . . . . . . . . . . . . . . . . . . . . 191
Spare tire . . . . . . . . . . . . . . . . . . . . . . . . . . 197
Fuses and bulbs . . . . . . . . . . . . . . . . . . 199
E lectrica l fuses . . . . . . . . . . . . . . . . . . . . . . 199
B ul bs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201
Emergency situations . . . . . . . . . . . . 203
Genera l . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203
Start ing by p ush ing or tow ing . . . . . . . . . . 203
Start ing with jumper cables . . . . . . . . . . . 203
U se of jumper cables . . . . . . . . . . . . . . . . . 204
Tow ing with a tow t ruck . . . . . . . . . . . . . . 20S
Raising the vehicle . . . . . . . . . . . . . . . . . . . 207
Accessories and Technical Data . 209
Technical data . . . . . . . . . . . . . . . . . . . . 209
Vehicle spec ificat ions . . . . . . . . . . . . . . . . 209
Notes about technical da ta . . . . . . . . . . . . 209
Weights . . . . . . . . . . . . . . . . . . . . . . . . . . . 209
D imens ions. ... .. .. .... .. .... ... .. .. 2 10
Capacities . . . . . . . . . . . . . . . . . . . . . . . . . . 210
Gasoli ne engines . . . . . . . . . . . . . . . . . . . . 211
Consumer Information . . . . . . . . . . 2 12
War ranty coverages . . . . . . . . . . . . . . . . . . 212
Operating you r vehicle outside the U.S.A.
or Canada . . . . . . . . . . . . . . . . . . . . . . . . . . 212
Audi Service Repair Manuals and
Literat ure . . . . . . . . . . . . . . . . . . . . . . . . . . 212
Maintenance ...... .... ........... ... 212
Accessor ies and techn ica l changes . . . . . . 214
De claration of comp liance for
te lecommunications equipmen t and
ele ctroni c sys tems . ... ... ..... ... .. .. 21S
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 16
3

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.. To open the luggage compartment lid, press
the grip p iece in the luggage compartment lid
¢page 27.
Locking the vehicle
.. Place the selector lever in the P position, or else
the vehicle will not be able to lock .
.. To lock the vehicle, close the door and touch
the sensor on the door handle
once¢ fig. 16,
¢ ,&.. Do not hold the door handle while doing
this.
Unlocking and locking the vehicle can only be
done at the front doors. The remote control key
cannot be more than approximately 4 ft (1.5 m)
away from the door handle . It makes no differ­
ence whether the remote control key is in your
jacket pocket, purse or briefcase .
The door cannot be opened for a brief period di­ rectly after locking it. Th is way you have the op­
portunity to check if the doors locked correctly .
You can set in the Infotainment system if
only
the driver's door or the entire vehicle should un­ lock when unlocking ¢
page 26.
A WARNING
Read and following all warnings¢.& in De­
scription on page 22.
(D} Tips
If your vehicle is left standing for a long peri­
od of time, note the following:
- The proximity sensor switches off after a
few days to save energy. You then have to
pull once on the door handle to unlock the
vehicle and a second time to open it .
- The energy management system gradually
turns off unnecessary convenience functions
to prevent the vehicle battery from draining
and to maintain the vehicle's ability to start
for as long as possible. You then may no
longer be able to unlock your vehicle with
this convenience function.
Opening and closing
Central locking switch
Fig. 17 Driver 's doo r: centr al locking switc h
Fig. 18 Rear center co nsole: ce ntra l locking sw itch
• To lock the vehicle, press the ff! button ¢ ,A.
• To unlock the vehicle, press the al button .
You can
lock and unlock your vehicle using the
central locking switch in the driver's or front pas­
senger's door¢
fig. 17 . You can only lock your
vehicle using the central locking switch on the
center console
¢ fig . 18 .
When locking the vehicle with the central locking
switch, the following applies:
- Opening the door and the luggage compart­
ment lid from the
outside is not possible (for
security reasons, such as when stopped at a light) .
- The L ED in the central locking switch turns on
when all doors are closed and locked.
- Front doors : you can open the doors individual­
ly from the inside by pulling the door handle .
- Rear doors: to unlock the doors, pull on the door handle
one time. To open the doors, pull
on the door handle
again.
- In the event of a crash with airbag deployment, the doors unlock automatically to allow access
to the vehicle .
IJII>
25

Sea ts and stor age
_&. WARNING
Always keep the glove compartment l id
closed while driv ing to reduce the risk of in­
jury.
Additional compartment s
You will find a variety of storage compartments
and holde rs at var ious locations in the veh icle.
- In the door trim panels .
- In the center console .
- On the side of the front seats*. The sliding com-
partment can hold a maximum of 3.3 lbs (1.5
kg) and the folding compartment can hold 2.2
lbs (1 kg).
- Nets* on the backrests of the front seats
- Garment hooks next to and above the rear
doors.
- Bag/securing hooks in luggage compartment.
_&. WARNING
- No heavy or hard objects may be placed on
the storage compartment behind the rear
seat backrest. There is a risk of injur ing the
vehicle passengers when brak ing suddenly .
- Make sure that the view to the rear is not
obstructed by hanging garments .
- Hang only lightweight clothing and be sure that there are no heavy or sharp-edged ob­
jects in the pockets .
- Do not use coat hangers to hang garments,
because th is could reduce the effectiveness
of the side curtain airbags* .
- Only use the storage compartments in the
door trim panels to store small objects that
will not st ick o ut of the compartment and
impa ir the range of the side a irbags .
(D Note
Objects on the rear shelf that rub against the
rear window can damage the rear window
heating wires .
46
Luggage compartment
General information
_&. WARNING
Read and follow the important safety precau­
tions in ¢page
102.
Luggage compartment cover
Applies to: vehicles with luggage compartment cover
Fig . 55 Lug gage co mpar tmen t: c over attac hed
Fig . 56 Right fron t sec tio n of the luggage co m partment:
remov ing the luggage co mpartm ent cove r
Attaching
-
.. Pull the cover out and attach it in the mounting
eyelets in the side trim panel ¢
fig. 55.
Removing
.. Pull both levers all the way in the direction of
the arrow ¢
fig. 56 .
.. Pull the cover upward to remove .
Installing
.. Place both sides of the cover into the mounts
on the side trim .
.. Push the cover downward until both sides click
into p lace .

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Storing* Depending on the vehicle equ ipment, yo u can
store the cover under the cargo floor
Q page49.
.&_ WARNING
- To reduce the risk of accidents, the luggage
compartment cover should never be unse­
cured under any circumstances .
- The luggage compartment cover is not a surface for storing objects. Objects placed on the cover co uld endanger a ll vehicle oc­
c u pan ts during sudden braking maneuvers
o r in a crash.
CD Note
To avoid damage , let t he luggage compart­
ment cover roll up slow ly after removing .
Increasing the size of the luggage
compartment
The rear seat backrests can be folded forward e i­
ther s eparately or together .
Fig . 57 Backrest: re lease leve r
Folding the backrest forward
.,. Pull the release lever@Q
fig. 57 in the direc-
t ion of the arrow and fo ld the backrest forward .
Folding the backrest back into the upright
position
.,. Fold the backrest back up aga in until it latches
and the red marking ® is no longe r visible
Q _& .
Seats and storag e
.&_ WARNING
-~
-The backrest must be secure ly latched to
e nsu re the safety belt is protecting the rea r
seat pos itions .
- The bac krest must be securely latched so
objects cannot slide fo rwa rd out of the lug­
gage compartment during sudde n braking .
CD Note
-If you move the front seat back when the
rear seat backrest is fo lded fo rwa rd, yo u
could damage the head restraints on the
rear seat . If necessary, remove the rear seat
hea d rest raint before mov ing the front seat
back
- To red uce the risk of damage, move the rea r
hea d res train ts down before f oldi ng the
rea r back res ts fo rw ar d Q
.&. in Rear head re­
straint s on page 44.
- Make sure the o uter sa fety be lts are not
pinche d or d am aged when fol din g th e seat
back.
Tie-downs and luggage compartment net /
cargo bag
Applies to : vehicles with tie-downs/luggage compartment net
The luggage compartment net* prevents smaller
objects from sliding out of place .
Fig. 58 Luggage co mpa rt me nt: lu ggage compa rtme nt net •
st retc hed o ut
Read and follow a ll warn ings Q .& in Loading the
luggage compartment on page 102 .
Cargo net
.,. At ta ch the hoo ks for the l uggage compa rtment
net in t he tie -dow ns -ar rows-
Q fig. 58. ..,
47

Sea ts and stor age
Cargo bag
.. Engage the two hooks on the side with the car­
go bag to the tie-downs on the floor near the
rear seat.
.. Engage both eyes on the luggage compartment
net to the bag hooks * in the side trim panel.
You can a lso use the bag hooks* to hang light
purses, bags, etc.
A WARNING
For strength reasons, only ob jects with a max­
imum weight of 10 lb (5 kg) should be se­
cured in the luggage compartment net. Heavi­
er objects a re not adequately secured . There
is risk of personal inj ury.
Bag hooks
F ig. 59 Luggage compartment : bag hooks (example)
The bag hooks can be used to prevent bags with
light contents from falling over.
A WARNING
Do not use the bag hooks to secure heavy ob­
jects. Heavy objects are not adequately se­ cured. There is risk of pe rsonal injury.
48
Cargo mat
App lies to : vehicles with cargo mat
The cargo mat* protects the luggage compart­
ment and bumper from dirt and scratches .
Fig. 60 Luggage compartment: cargo mat
r, .,,
~ co C0
You can use the cargo mat with the dirt -resistant
side or the decorative side . After loading or un­
loading, fo ld up the cargo mat and close the lug­
gage compartment lid. On ly store the cargo mat
if it is dry.
Pass-through with ski bag
App lies to: vehicles with pass-through an d ski bag
Long objects, such as skis or snowboards, can be
transported in the ski bag.
Fig. 61 Luggage compartment: pass-through in the back·
rest
F ig . 62 Rear bench seat: securing the ski sack

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Loading
• Press the release button in the luggage com­
partment
c:> fig. 61 and fold the pass-through
toward the front.
• Push the ski bag through the op ening from the
luggage compartment . T he zipper must face
toward the rear
c:> ,& .
Securing
• Stick the strap @on th e bag in the center belt
latch
@ c:> fig. 62.
• Tighten and secure the strap©
A WARNING
-The ski sack is intended only for the trans­
portation of skis and other light objects. To
reduce the risk of serious personal injury,
never transport heavy or pointed objects in
the ski sack.
- When braking rapidly or during an accident ,
the load could be displaced and cause injury
to occupants.
- Sharp edges on the load must be covered
for protection. Always fasten the belt tight­ ly around the sack and its contents
c:>fig . 62.
- For safety reasons, do not transport more
than two pairs of skis in the ski sack .
- You must secure the ski sack with the strap
after loading.
- Make sure all objects that you are transport­
ing in the pass-through are secured. Other­
wise they could slide around during sudden
braking maneuvers and cause injury .
(D Tips
-Only fold the bag up if it is dry.
- When transporting skis or snowboards, tighten the securing strap between the
bindings.
- Lay skis in the bag with the points facing
forward and snowboards and ski pole points
facing the rear.
-
Seats and storage
Reversible cargo floor
Applies to: vehicles with reversible cargo floor
Fig. 63 Lug gag e compar tmen t: reve rs ibl e ca rgo area floor
w ith the decora tive s ide faci ng up
Reversing the cargo area floor
You can use the reversible cargo area floor with
the dirt-resistant side or the decorative side .
.,. To turn up the dirt-resistant side, pull the cargo
floor up at the handle
c:> fig . 63 and out toward
the rear . Or
.,. To turn up the decorative side , take out the car­
go floor at both handles on the left and right
side.
• Reinsert the cargo floor.
Roof rack
Applies to: vehicles with roof rack
Fig. 64 Attac hme nt point s for the roof rack
If luggage or cargo is to be carried on the roof,
you must observe the following :
- Only a specially designed roof rack may be used
on your vehicle . These roof racks are the basis
for a complete roof rack system. Additional at­
tachments/carrier systems are necessary to
transport luggage and sports equipment. We ..,.
49

Driving
Your vehicle is equipped with an electromechani­
cal parking brake @
c> fig. 71. The parking brake
is designed to prevent the vehicle from rolling
un intent ionally and replaces the hand brake .
Setting/manuall y releasing the pa rking
brake
... Pull the(®) switch to set the parking brake . The
LED in the sw itch turns on. The -(USA mod­
els) . (Canada models) indicator light also
turns on in the instrument cluster display .
.,. To release the parking brake manually, press
the b rake o r accelerato r pedal whi le the igni­
tion is switched on and p ress t he
C®) switch a t
the same time. The L ED in t he b utton and t he
i ndica tor light in the display turn off .
Releasing the parking brake automatically
Requirement: the dr iver's door must be closed,
the dr iver's safety be lt must be latched and the
pa rking brake must be set.
... To start driving and re lease the park ing brake
automat ica lly, press the accele rato r pedal as
us ua l.
In addi tion to releasing the park ing brake auto­
mat ically, other convenience and safety funct ions
are available whe n you start driving
c> page 65,
Starting from a stop .
Preventing the automatic parking brake
release
The vehicle could begin rolling unintentionally ,
dependi ng on the h ill or if towing a trailer .
... To preve nt the parking brake from releasing au­
tomat ica lly, pull and hold the®) sw itch and
press the accelerator pedal. The park ing b rake
remains set and prevents the veh icle from ro ll­
in g backward.
.,. Yo u can re le ase the(®) switch aga in once you
are sure that you are g iv ing eno ugh dr iv ing
force to the wheels by pressing the accele rator
pedal.
Emergency braking function
You can use the emergency bra king f unct ion in an
emergen cy situ ation , or if the stand ard bra ke op­
era tion mal func tions or is disabled.
64
... Pull and ho ld the C®) swi tc h.
... As soon as you re lease the
C®> switch or acceler-
ate, the braking stops.
P ulli ng and ho ld ing t he
C®) switch wh ile driving
the veh icle activates the eme rgency braking func ­
tion . The ve hicle is bra ked at a ll four wheels by
activating the hydraulic b rake system . The bra k­
i ng effect is sim ilar to heavy brak ing
c> ,&. .
To reduce the risk of act ivat ing t he emergency
bra kin g by mista ke, a warning tone (buzzer)
sounds when the
C®) sw itch is p ulled . Eme rgency
braking stops as soon as the© switch is released
or the accelerator pedal is pressed.
Park ing
... Press the brake peda l to stop the ve hicle.
... Pull the
C®> switch to set the par king brake .
... Place the selecto r lever in the P position .
... Turn the engine off
c> ,&. .
... Turn the steering w heel when parking on in­
clines so that the w heels w ill roll into the curb
if the vehicle starts moving.
8,,. WARNING
- Do not press the a ccele ra to r peda l inadve r­
tently if a ge ar i s selected whe n the vehicle
is st ationary an d th e engine is running . Oth­
erwise, the vehicle will s tart to move imme ­
diate ly and this could result i n an accident.
- Eme rgency brak ing s hou ld only be used i n
an emergency, when the norma l bra ke pe dal
has failed or the bra ke peda l is obstructed .
During eme rgency brak ing, your vehicle will
brake s imilar to heavy braking. ESC and the
associated components (ABS, ASR, EDL)
cannot ove rcome the laws of physics .
Around curves a nd whe n road or wea ther
conditions a re bad, a full brake applicat io n
can ca use the veh icle to skid or the rear end
to swerve, w hich incr eases the ris k of an ac­
cident.
- I f th e power s upply fail s, you cannot set the
parking br ake if it is released. In this case,
pa rk the vehicle on leve l ground and secure
it by p lacing the selector leve r in the P posi­
tion. See an authorized A udi dealer or au -
thorized A udi Service Fac ility for assistance.
IIJ.

Driving
Selector lever emergency release
Applies to: ve hicles w ith a utomat ic tra nsm iss io ns
If the vehicle's power supply fails, the selector
Lever can be released in an emergency.
F ig. 76 Selector leve r: remov ing th e cover
Fig. 77 Selec tor lever: eme rgency re lease
To maneuver or tow the vehi cle, the emergency
release must be used to move the selector lever
from the P position.
Using the emergency rele ase can be compli cated.
We recommend contacting an a uthorized Audi
dealer or authorized Audi Service Facility for as ­
sistance , if necessary .
A ma intenance tool from the vehicle tool ki t
must be used to re lease ¢
page 191 .
Preparations
.,. To preve nt yo ur vehicle from ro lli ng u ninten­
t iona lly, se t the par king b rake(®) or press the
brake peda l r:!.>
,& .
.,. Inse rt the fla t side of the maintenance too l
sideways in the s lot near the s hif t cover and pry
off the shift cover¢ fig. 76 .
.. Pull the frame and the cover upward. You can
fold the cover up over the shifter knob.
72
S ele cto r lev er emergenc y re lease
.,. Press and hold the ye llow release b utton
r:!.> fig. 77.
.,. Press the button on the selector lever and move
the lever into N pos ition .
.,. Clip the frame to the cover again.
A WARNING
- On ly activate the emergency release while
on a level surface or a slight slope .
- Only move the selector lever out of the P po­
sition when the parking brake is set. If it is
not f unct io ni ng, secu re the ve hicle from
ro lling using the bra ke pedal or other suita­
ble mea ns, such as b locking a front and a
rear w heel. An unsecured vehicle may roll
away, which increases the risk of a n acci­
de nt.