2017 AUDI A3 SEDAN engine coolant

Check ing and F illing
The pull cable for the emergency release is locat­
ed on the cover .
.,. To access t he e mergency release, fold the r ight
bac kres t
forwa rd ¢ page 68 .
.,. Remove the cover from the trim .
.,. Carefully pull the cover toward the center of
the ve hicle at a 45° angle
-arrow- ¢ fig. 268
c>(D . The tab on the cover must point forward
in the direct ion you are pulling when pull ing on
the cover.
.,. Press on the left s ide of the fuel f ille r door to
open it
¢ page 314, fig . 265 .
(D Note
Onl y pull on the loop/cove r unt il you feel re ­
sistance. You wi ll not hea r it re lease . Other­
w ise you cou ld damage t he emergency re­
lease mecha nism .
Catalytic converter
The vehicle may o nly be driven with unleaded
g a soline, otherwise the catalyt ic converter will be
destroyed.
Never d rive until the tank is completely empty .
The irregular supp ly of f uel that results from t hat
can cause engine m isfi res. Uncombusted fuel will
ente r the exhaust sys tem, w hich can ca use ove r­
heating and damage to the catalyt ic converter .
& WARNING
The tem perature of the ex ha ust system is
high, both when driving and after stopping
the engine.
-
- Never touch the exha ust ta il pipes once t hey
have become hot. This could result in burns.
- Do not park your vehicle over flammable
materials such as g rass or leaves because
the h igh temperat ure of the emiss ions con­
trol system cou ld start a f ire.
- Do not apply underbody protectant in the
exhaust system area, because this increases
t h e risk of fire.
316
Engine compartment
· Working in the engine compartment
Special care is required if you are working in the
engine compartment
For work in the engine compartment, such as
checking and fill ing fluids , the re is a risk of in­
jury, scalding, accidents , and burns. For this
reason, follow all the warnings and general
safety precaut ions provided in the following in ·
formation . The engine compartment is a dan­
gerous area.
c> & .
& WARNING
To reduce the ris k of injur ies, comp lete the
following steps before opening the hood:
- Tur n the engine off.
- S witch the igni tion off.
- Set the park ing brake.
- Move the selector lever into t he P position.
- Never ope n the hood when there is steam o r
coo lant escaping from the engine compart­
ment, because there is a risk that yo u could
be burned . Wait unt il no steam or coolant is
escapi ng.
- L et the eng ine cool down .
- Keep children away from the eng ine com-
pa rtment .
- Never sp ill fluids on a hot engine . These flu­
ids (such as the anti-freezing agent con­
tained in the coolant) ca n ignite.
- Avoid short c ircuits in the electrical system.
- When working in the engine compa rtment,
remember that the radiator fan can switch
on even if t he ignition is switched off, wh ich
increases the r is k of persona l injury.
- Never open the cap on the coolant expan­
sion tank when the engine is warm . The
coo ling syste m is under p ressure.
- To protect your face, hands, and a rms from
hot steam or coolant, cover the cap with a
large cloth when opening .
- Do not remove the engine cover under any
circumstances . Th is i ncreases the risk of
burns .
-

Checking and Filling
Opening and closing the hood
The hood is released from inside the vehicle .
M ~
-...::;:;========-d ~
Fi g. 269 Sect ion from th e driver's side footwell: release
l ever
F ig. 270 Rocker switc h under the hood
m
Read and f oll ow all W ARNINGS before checking
anything in the engine compartment
q page 316, Working in the engine comport­
ment .
Make sure the wiper arms are not raised up from
the w indshield . Otherwise the paint could be
damaged.
Open ing the ho od
App lies to vehicles w ith plug-in hybrid drive *:
switch the ignition off before re leasing the hood
318
so that the gasoline engine does not start auto­
matically .
.,. With the drive r's doo r open, pull the lever be­
low the instr ument pane l in the d irection of the
arrow
q fig. 269.
... Raise the hood slightly 9 .&, .
... Press the rocker switch under the hood upward
qfi g. 270. This releases the catch .
... Open the hood .
Closing the hood
... Push the hood down unti l you override the
force of the strut .
... Let the hood fall lightly into the latch . Do not
press it in .
q .&,.
A WARNING
--Never open the hood when there is steam or
coolant escaping from the engine compart­
ment, because there is a risk that yo u could
be bu rned. Wait unt il no steam or coolant is
escaping.
- For safety reasons, the hood m ust always be
closed securely while driv ing. Because of
this, always c heck the hood after closing it
to make sure it is latched correctly. The
hood is latched if the front corners cannot
be lifted.
- If you notice that the hood is not latched while you are driving, stop immediate ly and
close it, because driving when the hood is
not latched increases the risk of an accident.
- If the hood is not latched comp letely, it
could f ly up while you are driving and ob­
struct your vision.

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Checking and Filling
Engine compartment overview
The most important check points .
-
Fig. 271 Typical location of the reservoir , engine oil dipst ick, and eng ine oil filler opening
(D Coolant expansion tank (-"-) ¢ page 323
@ Engine oil dipstick¢ page 321
® Eng ine oil filling opening ('er.) ¢page 321
@ E ng ine o il label* w ith VW standard
¢ page 319
® Brake fluid reservoir ((0}) ¢ page 325
@ Vehicle battery(+) under a cover
¢ page 326, ¢ page 368
0 Body ground point(-) ¢page 326,
¢page 368
@ Washer fluid reservoir (W) ¢ page 32 7
® Fuse housing ¢ page 364
The o il dipstick( @) and the engine oil f iller
opening( @)
¢fig. 271 can be located in differ­
ent posit ions depending on the engine vers ion.
A WARNING
Read and follow all WARN INGS before check­
ing anything in the engine compartment
¢page 316.
(D Tips
Plug-in hybrid drive*: read the information re­
garding the coolant expansion tank under
¢page 104 and the vehicle battery(+) under
¢page 104 .
Engine oil
Engine oil specifications
The engine oil used must conform to exact speci­
fications.
The service interval display in the instrument
cluster of your vehicle will inform you when it is
time for an oil change . We recommend that you
have your oil changed by an authorized Audi Serv­
ice Advisor .
If you must add oil between oil changes , use an
oil that matches the Audi oil quality standard
li sted on the sticker. The sticker is located at the
Ill>
319

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@ For the sake of the environment
-Before changing your oil, first make sure
you know where yo u can properly dispose of
the used oil.
- Always dispose of used engine oil prope rly .
Do not dump it on garden soil, wooded
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 serv ice stat ion.
Cooling system
Coolant
The engine coo ling system is filled with a mixture
of purified water and coolant additive at the fac­
tory. This coo lant must not be not changed.
The coolant leve l is monitored through
the . in­
d icator
light ¢ page 28. However, we do recom­
mend occasionally checking the coo lant level
manually.
I f you m ust add coolant, use a m ixture of water
and coolant addit ive. Mixing the coolant additive
with distilled water is recommended.
Coolant additive
The coolant addi tive is made of anti-freezing and
cor ros ion pro tection agents. Only use the follow­
ing coolant additives . These additives may be
mixed with each other.
Coolant additive Specification
G13 TL 774 J
G12++ TL 774 G
The amount of coo lant additive that needs to be
mixed with water depends on the climate where
the vehicle will be operated .
If the coolant addi­
tive percentage is too low, the coolan t can freeze
and damage the engine.
Checking and Filling
Coolant Freeze protec-
additive tion
Warm regions min.40% min. -13 °F
max. 45% (-25 °()
Cold reg
ions min. 50% max. -40 °F
max . 55 % (-40
°()
(D Note
-
Before the start of winter, have an a uthor ­
ized Aud i dea ler o r authorized Audi Serv ice
Facility check if the coo lant additive in your
vehicle matches the percentage appropriate
for the climate. This is especially important
when driving in colder climates.
- If the appropriate coo lant additive is not
available in an emergency, do not add any
other additive. You could damage the en­
gine . If this happens, on ly use water and re­
store the correct mix tu re ratio with the
specified coolant add it ive as soon as poss i­
ble.
- Only refill w ith new coolant.
- Radiator sealant must not be mixed with
the coolant .
Adding coolant
Fig. 27 4 En g in e compa rtment: ma rkings on the coolant
expansion tank
Observe the safety precautions ¢ page 316,
Working in the engine compartment.
Checking the engin e coolant level
.. Park the vehicle on a level su rface .
.. Switch t he ignit ion off.
.. Read the coolant level on the coolant expans ion
tank ¢ fig. 2 74. The coolant leve l must be be -
tween the ma rkings when the engine in cold .
..,
323

Checking and Filling
When the engine is warm it can be slightly above the upper marking.
Adding coolant
Plug-in hybrid drive* : Your vehicle has two cool­
ant expansion tanks that are separate from each
other. The smaller of the two expansion tanks
must not be opened
¢ page 104. Read and fol­
low the important safety precautions ¢
A in
Coolant on page 105 .
Requirement: there must be a residual amount of
coolant in the expansion tank
¢ (D .
~ Let the engine cool down.
~ Place a cloth over the coolant expansion tank
cap and unscrew the cap counterclockwise
¢_&. .
~ Add coolant mixed in the correct ratio
¢page 323 up to the upper marking.
~ Make sure that the fluid level remains stable.
Add more coolant if necessary.
~ Close the cap securely.
Coolant loss usually indicates there is a leak . Im­
mediately drive your vehicle to an authorized
Audi dealer or authorized Audi Service Facility
and have the cooling system inspected.
If the
cooling system is not leaking, a loss can come
from the coolant boiling through overheating
and being pushed out of the cooling system.
.,&. WARNING
The cooling system is pressurized and can be­
come very hot. To reduce the risk of burns
from hot coolant:
- Do not open the coolant expansion tank cap
when the engine is hot. This increases the
risk of burns.
- Stop the engine and allow it to cool.
- Protect your face, hands and arms from es-
caping coolant and steam by covering the
coolant tank cap with a large, thick cloth.
- Turn the coolant tank cap counterclockwise
slowly and keep light pressure on the cap.
- To reduce the risk of burns, do not allow any
antifreeze or coolant to drip onto the ex­
haust system or hot engine components.
324
The ethylene glycol in engine coolant can
catch fire under certain circumstances.
- The coolant additive and the coolant can be
dangerous to your health. For this reason,
keep the coolant in the original container
and away from children . There is a risk of
poisoning.
- When working in the engine compartment,
remember that the radiator fan can switch
on even if the ignition is switched off, which
increases the risk of injury.
(D Note
Do not add coolant if the expansion tank is
empty . Air could enter the cooling system and
damage the engine . If this is the case, do not
continue driving . See an authorized Audi deal­
er or authorized Audi Service Facility for assis­
tance.
- Before the start of winter, have an author­
ized Audi dealer or authorized Audi Service
Facility check if the coolant additive in your
vehicle matches the percentage appropriate
for the climate. This is especially important
when driving in colder climates.
- If the appropriate coolant additive is not
available in an emergency, do not add any
other additive. You could damage the en­
gine. If this happens, only use water and re­
store the correct mixture ratio with the
specified coolant additive as soon as possi­
ble .
- Only refill with new coolant.
- Radiator sealant must not be mixed with the coolant.
· Radiator fan
The radiator fan switches on automatically by it­
self
An auxiliary electric radiator fan switches on and
off depending on coolant temperature and other
vehicle operating conditions.
After you switch the engine off, the auxiliary fan
can continue running for up to 10 minutes
-even
with the ignition off.
It can even switch on again
later by
itself ¢.& , if .,..

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- the temperature of the engine coolant r ises due
to the heat bui ld-up from the engine in the en­
gine compartment , or
- the engine compartment heats up because the
vehicle is parked in intense su nlight .
_& WARNING
- To reduce the risk of personal injury never
touch the radiator fan .
- The auxiliary elect ric fan is temperature
contro lled and can switch on suddenly even
w hen the eng ine is not running.
- The auxiliary radiator fan switches on auto­ matically when the engine coo lant reaches a
certain temperature and will cont inue to run
until the coolant temperat ure drops.
Brake fluid
Fi g. 27 5 Engine co mpartment: cap on b rake f lu id reservoir
Observe the safety p recau tions ¢ page 316,
Working in the engine compartment .
Checking the brake fluid level
Read the brake f lu id leve l on the brake fl uid res­
e rvo ir
Q page 319 , fig. 271. The bra ke fluid level
must be be tween the M IN and MAX m ark ings
¢ _& .
The brake fluid level is mon itored a utomat ica lly .
Changing the brake fluid H ave the brake fluid changed regularly by an au­
thor ized Audi dealer or authorized Audi Service
Facility .
-
Checking and Filling
A WARNING
=
-If the brake fluid level is below the MIN
marking, it can impair the brak ing effect
and d riving safety, wh ich increase the risk of
a n accident . Do no t continue dr iving . See a n
a uthor ized Audi dealer or author ized A udi
Serv ice F acility for a ssistance.
- I f the b rake fl uid is old, b ubbles may form
i n t he bra ke sys tem dur ing heavy bra king.
This wo uld impair braking per formance an d
d riving safety, which increases the r is k of an
accident.
- T o ensu re the brake system fu nctions cor­
rectly, only use brake fluids that comp ly
with VW standard 501 14 or F M VSS -116 DOT 4.
(D Note
- If the brake flu id leve l is above the MAX
marking, bra ke f luid may leak o ut over the
edge of the reservo ir and result in damage
to the vehicle.
- Do not get any b rake fl uid on the vehicle
paint, because it wi ll corrode the paint.
Battery
General warnings about batteries
B ecause of the complex power supp ly, all work
o n batter ies such as d iscon necti ng, replac ing,
etc. should only be performed by an authori ze d
Audi dealer or au thor ized A udi Service Fac ility
Q _& .
The term "veh icle batte ry" refe rs to the 1 2 Vol t
battery in your vehicle .
P lug- in hybr id driv e*: For important informat ion
abou t the high-vol tage batte ry, refe r to
Qpage 94.
Detail ed warnings fo r the vehicle battery :
®
Wear eye protect ion.
A
Battery acid is h ighly corros ive. Wear pro-
tect ive gloves and eye protection.
@
F ir e, sparks, open flame and smoking are
forbidden .
325

Techni cal data
Technical data
Vehicle data
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II. -AlJSliT. / OPTIONS
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3FC 5 MU 7X l
FDA 9G3 OG7 O YH OJF
TL 6 3 KA 8EH UlA X 9B O Z7
lX W
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7T6 C V7
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Fig. 312 Veh icl e ident if ic ation labe l
Vehicle Identification Number (VIN )
The VIN numbe r is lo cated i n the following pla­
ces :
0
0
~ :x: ... IX)
- In the Infotainment system: selec t*: select
IM ENU I button > Vehicle > left control b utton>
Ser vice & che cks > Vehicl e information .
-on the vehicle identification label
- u nder the windshield on the driver's side*
Vehicle identification label
The vehicle identification label ¢ fig. 312 is locat­
ed in the luggage compartment under the cargo
floor cover.
The information of the vehicle identification label
can also be found in your Warranty
& Mainte·
nance booklet.
The sticker contains the following vehicle data :
(D Vehicle Iden tifica tion Number (VIN)
@ Vehicle type, engine output, transmission
@ Eng ine and transm ission codes
@ Pa int and interior codes
374
@ Optional equipment numbers
Safety compliance sticker
The safety compliance sticker is your assurance
that your new vehicle complies with all applicable Federal Motor Veh icle Safety S tandards which
were in ef fect at the time the vehicle was manu­
factu red. You can find this sticker on the door
jamb on the driver's side. It shows the month and year of production and the veh icle identification
number of your veh icle (perforation) as well as
the Gross Vehicle Weight Ra ting (GVWR) and the
Gross Axle We ight Rating (GAWR).
H igh volt age warning label
The hig h voltage warn ing label is located in the
engine compartment next to the engine hood
re­
lease. The spark ignition system complies w ith
the Canadian s tandard ICES-002.
Notes about technical
data
The values may diffe r for som e markets depend­
i ng o n eq uipment installed in certa in mar kets
and the me asur ing me thods .
Please note that the specifica tions listed in the
vehicle documentat ion a lways take precedence .
(D Tips
Missing technical data was not ava ilable at
the time of pr int ing .
Weights
Gross Vehicle Weight Rating
The Gross Vehicle We ight Rating (GVWR), and
the Gross Axle Weig ht Rating (GAWR) for front
and rea r are listed on a sticker on the door jamb
o n the dr iver's side .
The Gross Vehicle We ight Rating includes the
weight of the bas ic vehicle plus full fuel tank, oil
and coolant , plus maximum load, which includes
passenger weight ( 150 lbs/68 kg per des ignated
seat ing pos ition) and luggage
weight ¢& . ..,_

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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::> page 316 .
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 . The radiator fan switches on au ­
tomatically when the coolant reaches a cer­
tain temperature and will continue to run
until the coolant temperature drops.
- Always switch off the ignition before anyone
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 .
II>
379