2012 AUDI A3 ECU

Attachment locator markers for lower
anchorages
Circular locator buttons on the rear seatback indicate the lower anchorage locations on the
rear seating positions ¢
fig. 144.
Lower anchorages
The lower anchorage attachment points are
l ocated between the rear seatback and rear
seat cushion ¢
fig. 145.
Lower anchorages secure the child restraint in
the seat witho ut using the vehicle 's safety
be lts . Anchorages provide a secure and easy­
to-use attachment and minimize the possibili­
ty of improper child restraint installation.
A ll child restraints manufactured after Sep­
tember 1, 2002, must have lower anchorage
attachments for the
LATCH system.
Remember that the lower anchorage points
are only intended for installation and attach­
ment of child restraints specifically certif ied
for use with
LATCH l ower anchorages . Child
restraints that are not equipped with the low­
er anchorage attachments can still be instal­ led in compliance with the ch ild restra int
manufacturer's instruct ions on using vehicle
safety belts .
.&, WARNING
Improper use of LATCH lower anchorages
can cause serious persona l injury in an ac­
cident .
- Always carefully fo llow the child re­
straints manufacturer's instructions for
proper installation of the child restraint
and proper use of the lower anchorages
or safety belts in your vehicle.
- Never secure or attach any l uggage or
other items to the
LATCH lower ancho­
rages.
-Always read and heed the important in­
formation about child restraints in this
chapter and WARNINGS ¢
page 143,
Child Safety .
Child Safety 15 7
Installing a child restra int with LATCH
lower anchorages
Whenever you install a child restraint always
follow the child restraint manufacturer's in­
structions.
Fig. 146 Rear bench seat: insta llin g the mount fo r
LATCH child seats
Fig. 147 Lower anchorages: proper mount ing
Mounting
.,. Place the child seat mount@on the ancho­
rages @ between the back rests and the
seat surface ¢
fig. 146 .
.,. Remove the cover* to access the lower an­
chorage attachment points.
.,. Make sure the seatback of the rear seat
bench is in the upright position and secure ly
latched in place.
.,. Attach both hook-on connectors with the
spring catch release on the child safety seat
onto the LATCH lower anchorage so that the
connectors lock into place ¢
fig. 147.
.,. Pull on the connector attachments to make
sure they are properly attached to the LATCH
lower anchorage .
.,. Pull straps tight fo llowing the child re-
straint manufacturer's instructions . .,..

158 Child S afet y
Relea sin g
.,. Loosen the tension on the straps following
the chi ld restraint manufacturer 's instruc­
tions .
.,. Depr ess th e spr ing catch es to re lease the
a nchorage hooks from the lowe r anchorag ­
es.
Rem emb er: Use tether straps to help keep the
child restraint fi rmly in p lace.
A WARNING
Improper use of the LATCH system can in­
crease the risk of serious personal injury
and death in an acc ident.
- These anchors were developed only for
child safety seats us ing the "LATCH" sys­
tem .
- Never attach other child safety seats,
belts or other objects to these anchors .
- Always make sure that you hear a click
when latching the seat in place . If you do
not hear a click the seat is not secure and
could fly forward and h it the interior of
the vehicle, or be ejected from the vehi­
cl e.
&_ WARNING
Imprope r insta llation of chi ld restrai nts
w ill increase the risk of inju ry in an acc i­
dent.
- Always fo llow the child restraint system
man ufa cturer's instr uctions for proper
installation of the child restraint system
and proper use of tether straps as we ll as
the lower anchorages or sa fety belts in
your vehicle .
- Always read and heed the important in­
format ion and WARNINGS about child
safety and the installation of child re­
straint systems
c:> page 143, Child Safe­
ty.
Tether anchors and tether straps
F ig. 148 Tet her an ch ors : attachment hook loca tions
b ehi nd the rea r se atba cks
T he tether anchors for the rear seating posi­
tions are located on the backside of the rear
seatbacks
c:> fig. 148.
A tether is a stra ight or V-shaped st rap that
attaches the top par t of a ch ild restra int to
spe cial ancho rage po in ts in the vehicle.
The purpose of the tether is to reduce the for­
ward movement of the child rest raint in a
cr ash , in orde r to help reduce the risk of head
injury that cou ld be caused by str ik ing the ve­
hicle interior.
Forward facing child restraints manufactured
after September 1, 1999, are requ ired by U.S.
federa l reg ulations to comply wi th new child
head movemen t perfo rmance req uirements.
T hese new performa nce req uirements make a
tether necessary on most new child safety seats .
&_ WARNING
-Improper installat ion of child restra ints
will increase the risk of injury and death in
a crash .
- Always follow the instructions provided
by the manufacturer of the child re­
straint you intend to install in your Audi .
- Improper use of child restraint anchors
(including tether anchors) can lead to in ­
jury in a collis ion. The anchors are de­
s igned to withstand only thos e loads im­
posed by co rrec tly fitted child rest rain ts.
- Never mo unt two child restra int sys tems
-
on one LATC H lower anchor point. .,_

-Never attach two child restraint systems
to one tether strap or tether anchorage.
- Never attach a tether strap to a tie-down
hook in the luggage compartment.
- Never use child restraint tether ancho­
rages to secure safety belts or other
kinds of occupant restraints.
- Never secure or attach any luggage or
other items to the LATCH lower ancho­
rages or to the tether anchors.
-If a tether or other strap is used to at­
tach a child restraint to the front passen­ ger seat, make sure that it is not so
t ight , that it causes the weight-sensi ng
mat to measure more weight than is ac ­
tually on the seat .
- The heav ier weight reg istered can make
the Advanced Airbag System work as
though an adult were on the seat and de­
ploy the Advanced Ai rbag when it must
be s uppressed causing serious o r even
f atal injury to the child.
- If you mus t install a rearward facing
child safe ty seat o n the fron t passenger
seat beca use of exceptional circ ums tan­
ces and the
PASSENGER AIR BAG OFF
light does not come on and stay on , im­
med iately install the rear -facing child
safety seat in a rear seating position and
have the a irbag system inspected by you r
Audi dealer.
Installing the upper tether strap on the
anchorage
F ig. 1 49 Tether strap : prope r ro utin g and mountin g
Child S afety 159
Fig. 1 50 Tet her st rap: prope r routing an d mounti ng
Installing the tether str ap
.. Release or deploy the te ther s trap on the
child restraint according to the child re ­
straint manufacture r's instructions .
.. Guide the upper tether st rap
und er the rear
head restra int and into the rea r cargo a rea
r=;, fig . 150 (ra ise the head restraint if neces ­
sary) .
.. Slide the tether strap hook over the anchor
bracket.
.. Pull on the tether st rap hook so th at the
spring cat ch of the hook engages .
.. Tighten the tether strap firmly follow ing
the child restra int manufacturer's inst ruc ­
tions.
Relea sing the tether strap
.. Loosen the tension following the ch ild re­
strain t manufac turer 's ins truc tions .
.. Depress the spring catch on the hook and
release it from the anchorage .
(D Note
If you leave the child restraint w ith the
tether strap firm ly installed for several
days, this could leave a ma rk on the up­
ho lstery on the seat cushion and backrest
i n the area where the tether strap was in­
stalled. The upholstery would also be per ­
mane ntly stretched a round the tether
strap. T his app lies especia lly to leather
seats.
Using tether straps on rearward-facing
child restraints
Cu rrently, few rear-facing child restraint sys-
tems come with a tether . Please read and ...,

174 Trailer towing
Trailer towing Driving with a trailer
General information
Your Audi was designed primarily for passen­
ger transportation .
If you plan to tow a tra iler, p lease remember
that the addit ional load will affect durability,
economy and performance.
T railer towing not on ly places more stress on
the vehicle, it also calls for more concentra­
tion from the driver.
F or this reasons, always follow the operating
and drivi ng in str uctions provided and use
common sense.
Technical requirements
Traile r hitch
Use a weight-carrying hitch conforming to the
gross trailer weight. The hitch must be suita­
b le for your veh icle and trailer and must be
mounted securely on the ve hicle's chassis at a
technically sound location. Use only a trailer
h itch with removable ba ll mount. Always
check with the tr ailer hitch manufac turer to
make sure tha t you are using t he cor rect
hitch.
Do not us e a bumper hitch .
The hitch must be installed in such a way that
it does not interfere with the impact-absorb­
ing bumper syst em. No modifications should
be made to the vehi cle exhaust and brake sys ­
tems. From time to time, check th at a ll hitch
mo unt ing bo lts remain securely fastened.
When you are not towing a trailer, remove the
tra iler hitch ball mount. This prevents the
h itch from causing damage sho uld your ve hi­
cle be str uck from behind
¢ A .
Tire pressure
When tow ing a traile r, inflate the t ires of your
ve hicle to the co ld tire pressure listed under
"Full load"on the stick er on the rig ht doo r- jamb. Inflate trailer tires to trailer and tire
manufacturers' specifications.
Lights
T he headlight set tings sho uld be checked with
t h e trai le r attached before d riving o ff. Have
the headlights adjusted as necessary so tha t
yo u can see t he road ahead b ut not blind on­
coming traffic.
Check to make sure bo th ve hicle and tr ailer
lights are wo rk ing properly .
Engine cooling system
T owing a t railer makes the engine work hard­
er.
It i s impo rtant that the cooling system's
performance stands up to the additional
stra in. Make sure tha t the cooling sys tem has
enough fluid.
Trailer brakes
If your trailer is equipped with a brak ing sys­
tem, c heck to be sure t hat it conforms to all
regula tions.
The trailer hyd raulic brake system must not be
directly connected to the vehicle's hydraulic
brake system.
Safety ch ains
Be sure trailer safety chains are properly con­
nected from the trailer to the hitch on the ve­
hicle. Leave enough slack in the cha ins to per­
mit turning co rne rs. When yo u in stall safety
c h ains, ma ke sure they will not drag on the
r oad when you a re driving.
The chains should cross under the t railer
tong ue to prevent it from dropping in case of
separation from the h itch.
Trailer lights
Trai ler lights must meet all regulations. Be
sure to check w ith your authorized Audi dealer
for correct w ir in g, sw itches and re lays .
Mir rors
If you are unable to see the traffic behind you
us ing the regular outside mirrors, then you

194 Checking and filling
Checking and filling
Engine hood
Releasing the engine hood
The engine hood is released from inside the
vehicle .
Fig. 155 Driver' s side footwe ll: e ngin e hood release
lever
.. Open the driver's door.
.. Pull the release lever on the left under the
instrument panel
c> fig . 155 in direction of
the a rrow .
The hood pops up slight ly under spring pres­
sure.
Opening the engine hood
Fig . 156 Engine hood releas e le ve r
Before opening the eng ine hood, make sure
that the windshie ld wipers are folded flat
against the windshield . Otherwise, they could
damage the paint on the hood.
.. Pull the release lever
r=;,fig . 156 in the direc­
tion indicated by the arrow . This release the
hook under the hood .
.. Open the hood all the way.
A WARNING
-Hot engine coolant can burn you!
- To reduce the risk of being burned, never
open the hood if you see or hear steam
or coo lant escaping from the eng ine
compartment . Wait unt il no steam or
coolant can be seen or heard before care­
fu lly opening the hood.
Closing the engine hood
.. Pull the hood down until the pressure from
the strut is reduced .
.. Let the hood
drop down and latch in p lace.
Do not try to push it shut; it may fail to en­
gage
c> .&, .
A WARNING
--
A hood that is not completely latched
could fly up and b lock your view while dr iv­
i ng.
- When you close the engine hood, check it
to make sure the safety catch has proper­ly engaged . The hood shou ld be flush
with the surrounding vehicle body parts.
- If you notice while dr iv ing that the hood
is not secured properly, stop at once and
close it .
Working in the engine compartment
Be especially careful whenever you work in
the engine compartment!
Whene ve r you must pe rform any wo rk in the
eng ine compartment, for e xample chec king
and filling differ ent fluid s, the re i s a risk of
injury , burns and accident s. T o pr event p er­
s onal injury alwa ys observe the foll owing
WARNING S. Th e engin e c ompartm ent of an y
v e hicl e is a hazardou s area!
r=;, .&.
A WARNING
To help avoid injury, before yo u check any­
thing under the hood:
- Turn off the engine .
- Remove the ignition key.

202 Checking and filling
-When removing the oil drain plug with
your fingers, stay as far away as possible.
Always keep your forearm parallel to the
ground to help prevent hot oil from run­
ning down your arm.
- Drain the oil into a container designed
for this purpose, one large enough to
hold at least the total amount of oil in
your engine.
- Engine oil is poisonous. Keep it well out
of the reach of children .
- Continuous contact with used engine oil
is harmful to your skin. Always protect
your skin by washing oil off thoroughly
with soap and water.
(D Note
Never mix oil additives with your engine
oil. These additives can damage your en­
gine and adversely affect your Audi New
Vehicle Limited Warranty.
@) For the sake of the environment
- Before changing your oil, first make sure
you know where you can properly dispose
of the used oil.
-Always dispose of used engine oil proper­
ly. Do not dump it on garden soil, wood­
ed areas, into open streams or down
sewage drains.
- Recycle used engine oil by taking it to a
used engine oil collection facility in your
area, or contact a service station.
Important information for vehicles with
diesel engine when adding or changing
engine oil
App lies to vehicles: with diesel engine
On vehicles with a diesel engine always use
engine oil that conforms to Audi oil specifica­
tion VW
507 00 when adding or changing en­
gine oil.
Vehicles with diesel engines require and
must
always
use special engine oil that conforms to
Audi oil specification
VW 507 00 .
Never use any other kind of engine oil in your
vehicle, not even to top off the oil level.
At the time of printing, we are aware that Cas­
trol ® produces engine oil that conforms to Au­
di oil specification VW 507 00. This oil may
not yet be available throughout North Ameri­
ca. Other oil manufacturers may offer engine
oil that conforms to Audi oil specification
VW 507 00 at this time or some future date.
Please be sure to consult with your authorized
Audi dealer for information and availability of
the proper engine oil for your vehicle's diesel
engine and for the latest technical informa­
tion .
Because this special engine oil may not be
available when need it, we strongly recom­
mend that you always carry with you extra
quart (liter) of oil that conforms to Audi oil
specification VW 507 00, in case you have to
top off oil while on the road .
.&, WARNING
Failure to use engine oil for your diesel en­
gine that expressly conforms to Audi oil
specification VW 507 00 can cause engine
failure on the highway that can cause a crash and serious personal injury.
- Never use any amount of engine oil in
the diesel engine that does not conform
to Audi oil specification VW 507 00.
- Always carry with you an extra quart (li­ ter) of engine oil that conforms to Audi
oil specification VW 507 00 in case you must top off the oil while on the road.
.&, WARNING
Improperly stored items can become air­borne missiles, flying through the vehicle
causing serious personal injury in the
event of hard braking or an accident . To
help reduce the risk of serious personal in­
Jury:
-Always store extra quart (liter) of engine
oil for your diesel engine in its original oil
container that is securely closed in the
~

luggage compartment. Make sure the
container is securely stored and mount­
ed.
0 Note
-If you use engine oil that does not ex­
pressly conform to Audi oil specification
VW 507 00, very serious and very expen­
sive damage to your vehicle 's engine will
occur . Engine damage caused by using
the wrong engine oil is not covered by
your New Vehicle limited Warranty .
- Not all commercially available oils con ­
form to this very rigid Audi oil quality
standard even though they may be syn­
thetic-based and have the same viscosi­
ty.
Engine cooling system
Coolant
T he engine coolant performs two functions: it
keeps the engine from overheating and it pro­
tects the engine from freezing in the winter.
The cooling system is sealed and generally re­
quires little attention.
The cooling system has been filled at the fac­
tory with a permanent coolant which does not need to be changed. The coolant consists of a
mixture of water and the manufacturer's gly­
col-based coolant additive Gl2++ antifree ze
with anticorrosion additives (50% for USA models; 60% for Canadian models). This mix ­
ture both assures the necessary frost protec­
tion and protects metal components in the
engine 's cooling system from corrosion and
scaling.
It also raises the boiling point of the
coolant.
Do not reduce the concentration of the cool­
ant in the summer by adding plain water.
The
proportion of coolant additive must be at
least 50% but not more than 60%
to main­
tain antifreeze protection and cooling efficien­
cy. If the coolant frost protection is too low,
the coolant could freeze and damage the vehi­
cle heating and engine cooling system.
Checking and filling 203
For year-round driving, antifreeze is added at
the factory for temperatures down to:
--31°F(-35°C)USA
- - 40 °F ( - 40 °C) Canada.
You can mix the Gl2 ++ coolan t additive with
other additives Gl2 + or Gl2. Always check
with your authorized Audi dealer .
A WARNING
-
Before you check anything in the engine
compartment, always read and heed all
WARNINGS~
& in Working in the engine
comportment on page 194.
(D Note
- Before winter sets in, have the coolant
checked to see if the coolant additive in
your vehicle is sufficient to meet the cli­
mate conditions. This is especially impor­
tant if you live in a region where the
win­
ter is extremely cold. If necessary, in­
crease the proportion of coolant additive
to 60% .
- When adding coolant additive to your
cooling system, remember :
- We recommend using only coolant ad­
ditive G 12++ (check the label) for your
vehicle. This coolant additive is availa­
ble at authorized Audi dealers. Other
types of antifreeze can significantly re­
duce corrosion protection. The result­
ing corrosion can cause a loss of cool­
ant and serious engine damage.
- Do not add any type of radiator leak seal­
ant to your vehicle's engine coolant.
Adding radiator repair fluid may adverse­ ly affect the function and performance of
your cooling system and could result in
damage not covered by your New Vehicle
Limited Warranty.
•
•

208 Check ing and filling
for questions about the battery -danger
of acid burns and explosion hazard!
- The battery must not be opened! Do not try to change the battery's liq uid level ,
otherwise detonating gas will escape
from the battery- explosion hazard!
- The AGM battery in the luggage com­
partment cannot leak, because the elec­
trolyte for th is battery is absorbed into a
spec ial glass mat . Th is leak-proof battery
must not be replace with a conventional
battery .
- Make sure the ventilat ion hose on the
s ide of the battery is connected, other ­
wise fumes or battery acid can leak out .
- Battery ho lder and terminals a lways
have to be secured correctly .
- Before all work on the battery follow the
warning s below c> &. in Working on the
battery on page 208 .
Working on the battery
All work on the battery requires technical
knowledge! Be especially careful when work ­
ing on or near the battery!
Be fo re you check any thing in the engine com­
partment, always
r e ad a nd heed all WARN­
INGS
~ .&. in Working in the engine compart­
ment on page 194 .
Always heed the s afety warnings , when work­
i ng on the vehicle battery or the vehicle elec­
tr ica l system to preve nt injury .
The following WARNINGS are very
important when working on the battery:
Always heed the following WARNING SYM ·
BOLS and safety precautions when working on the battery.
Always wear eye protection.
Battery acid contains sulfuric
acid . Always wear glove s and
eye prote ction . No
• sparks
• flames
- smoking.
When a battery is charged , it
produces hydrogen gas which is
e x plosive and cou ld cause per­
sonal injury .
®
Always keep the battery well out
of reach of children.
A WARNING ,___
Whenever working on the battery or on
the electrical system, there is the risk of
i njury, accident and even fire . Read and
heed the following WARNINGS :
- Always wear eye protection . Do not let
battery ac id or any lead particles get on
your skin o r clothing . Shield you r eyes.
Exp losive gases can cause blindness or
o ther inju ry!
- Battery acid conta ins sulfuric acid. Sulfu­
ric acid can ca use blindness and severe
bu rns.
-Always wear g loves and eye protection.
Do not tilt the battery because acid
could leak out of the ventilat ion open­
ings .
- If you get battery ac id in your eyes or
on your skin, immediately rinse with
cold water for several minutes and get med ica l attent ion .
- If you shou ld ingest any battery acid,
seek medical attention immediately .
- Do not expose the batte ry to an open
flame, electr ic sparks or an open l ight.
- Do not smoke.
- Do not interchange the positive and neg-
ative cables.
- When working on the battery, be s ure
not to short-circu it the terminals w ith
too ls or othe r metal objects. Th is would
cause the battery to heat up very quickly,
which could lead to damage or explosion
-
and pe rsonal injury . ~