2013 AUDI TT light

184 Checking and filling
Detergent additives in the o il will make fresh
oil look dark after the engine has been run­
n ing for a short time . This is norma l and is not
a reason to change the oil more often than recommended.
D am ag e o r m alfun ction s due to lack of
m ainten ance
It is essent ial that yo u change your oil at the
recommended intervals using only engine oil
that complies with Audi oi l standard
VW 502 00 . Your Lim ited New Vehicle War­
ranty does not cover damage or malfunctions
due to failure to follow recommended mainte­
nance and use requ irements as set forth in
the Audi Owner's Manual and Warranty
&
M aintenance book let . Your dea ler will have to
deny warranty coverage un less you p resen t to
the dea ler proof in the form of Servi ce or Re­
pa ir Orde rs that all schedu led maintenance
was performed in a timely manner.
Engine oil consumption
The engine in your vehicle depends on an ade­
quate amount of oil to lubricate and cool all
of its moving ports.
I n o rder to prov ide effective lubr ication and
cooling of internal engine components, a ll in­
ternal comb ustion engines consume a certain
amount of oil. Oi l consumption varies from
engine to engine and may change significantly
over the life of the eng ine . Typically, eng ines
with a specif ied break-in per iod (see
c::;, page 159) consume more oil during the
break-in per iod than they consume after oil
consumption has stabilized .
Under normal conditions, the rate of oil con­
sumpt io n depends on the quality and viscosity
of the oil, the RPM (revolutions per m inute) at
which the engine is operated, the ambient
temperature and road cond it io ns. Furthe r fac­
tors are the amo unt of o il d ilution from wate r
condensation or fuel residue and the ox ida­
tion level of the oi l. As any engine is subject to
wear as mileage bui lds up, the oil consump­
tion may increase over t ime until replacement
of worn components may become necessary. Wi
th a ll these variab les coming into p lay, no
standard rate of oil consumption can be es­
tab lished or spec ified. There is no alte rnative
to regular and frequent check ing of the o il lev­
el, see
Note .
If the yellow engine oil leve l warning symbo l
in the instr ument cluster
II lights up, you
sho uld check the oil leve l as soon as possib le
with the oil dipstick c::;, page 185. Top off the
o il at your earliest conven ience
c::;, page 185 .
A WARNING
-Before you chec k anything in the eng ine
compartment, a lways read and heed a ll
WAR NINGS
c::;, .& in Working in the engine
comportment on page 180.
CI) Note
D riving with an insufficient o il level is like­
l y to cause sever e damage to the engine.
(D Tips
- The oil pressure warn ing display. is
not an indicator of the oil level. Do not
re ly on it . Instead, check the oil level in
your engine at regular intervals, pr ef­
erably ea ch time you refu el, and alway s
before going on a long trip.
- If you have the impression yo ur engine
cons umes excessive amoun ts of oil, we
recommend that you consult your Aud i
dealer to have the cause of your concern
properly diagnosed. Keep in mind that
the accurate meas urement of o il con­
sumption requ ires great care and may
take some t ime . Your Audi dea ler has in­
struct ions about how to measure oil con­
sumption acc urately.

188 Checking and filling
Before you check anything in the engine com­
partment,
alwa ys r ea d and heed all WARN­
INGS ¢ A in Working in the engine compart­
ment on page 180.
• Park your vehicle on a level surface.
• Switch the ignition off.
• Read the coolant level at the coolant expan­
s ion tank ¢
page 182, fig . 134. With a cold
engine, it must be above the "min" mark .
With a hot engine, it ca n be a little above
the indicated range .
The location of the coolant expans ion tank
can be seen in the engine compartment illus­
tration
¢ page 182.
To obtain an accurate read ing, the engine
must be switched off.
The expansion tank in yo ur vehicle is equipped
with an e lectric coolant level sensor .
When the coo lant level is too low, the warning
light in the A uto- Check System ¢
page 16 will
illuminate until yo u add coo lant and the level
has been restored to normal. Even though
there is an electric coo lant level sensor, we
still recommend you check the coolant leve l
from time to time .
Coolant loss
Coolant loss may indicate a leak in the cooling
system . In the event of coolant loss, the cool­
ing system should be inspected immediately
by your author ized Audi dealer. It is not
enough merely to add coolant .
In a
sealed system, losses can occur only if
the boiling point of the coolant is exceeded as
a result of overheat ing.
(D Note
Do not add any type of radiator lea k seal­
ant to your vehicle's eng ine coolant. Add­
ing radiator repair f luid may adversely af­
fect the function and performance of your
cooling system and could res ult in damage
not covered by your New Vehicle Limited
Warranty.
Adding coolant
Be very careful when adding engine coolant.
Before you check anyth ing in the engine com­
partment,
always read and heed all WARN­
INGS ¢ A in Working in the engine compart­
ment on page 180 .
• Turn off the engine.
• Let the engine cool down.
• Place a thick rag over t he coo lant expansion
tank
¢ page 187, fig . 138 a nd carefully
tw ist the cap counter-clockwise ¢&_ .
• Add coo la nt.
• Twis t the cap on aga in
t ightly.
Replacement engine coolant must conform to
exact spec ificat ions ¢
page 18 7, Coolant.
Even in a n emerge ncy, if coolant add i-
t ive G1 2++, G12+ or G12 is not ava ilable , do
not use a d iffe ren t addit ive. Use plain water
instead unti l you can get the cor rect additive
and can restore the correct ratio . This sho uld
be done as soon as possible .
If you have los t a considerab le amount o f
coolant , then you sho uld add cold ant ifreeze
and co ld wate r on ly w hen the engine is cold.
Alw ays use
new engine coo la nt whe n refilling .
Do not fill coola nt above the "MAX" mark. Ex­
cess coola nt wi ll be fo rced o ut through the
pressure relief valve in t he cap w hen the en­
gine becomes hot.
,&. WARNING ~ -
- T he cooling system is under pressure and
can get very hot. Reduce the risk of
scalding from hot coolant by followi ng
these steps.
- T urn off the engine and allow it to coo l
down.
- Protect yo ur face, hands and arms from
escaping fluid and steam by covering
the cap w ith a large, t hick rag.
- T urn the cap s lowly a nd ve ry carefully
in a counter-clo ckwise direction while
applying light, downward pres sure on
the top of the cap.

-To avoid being burned, do not spill an­
tifreeze or coolant on the exhaust sys­ tem or hot engine parts. Under certain
conditions, the ethylene glycol in en­
gine coolant can catch fire.
- Antifreeze is poisonous. Always store an­
tifreeze in its original container and well out of the reach of children.
- If you drain the coolant, it must be
caught and safely stored in a proper con­
tainer clearly marked "poison".
(D Note
- Coolant pollutes the environment and
could cause an engine fire. Excess cool­
ant will be forced out through the pres­
sure relief valve in the cap when the en­
gine becomes hot.
- If, in an emergency, only water can be
added, the correct ratio between water
and antifreeze¢
page 187 must be re­
stored as soon as possible.
@ For the sake of the environment
Drained coolant should not be reused. Al­
ways dispose of used coolant while observ­ ing all environmental regulations.
Radiator fan
The radiator fan switches on automatically by
itself
The electric radiator fan is controlled by ther­
moswitches that switch on and off depending
on coolant and engine compartment tempera­
tures.
An auxiliary electric radiator fan* switches on
and off depending on coolant temperature
and other vehicle operation 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
c::> &., , if
- the temperature of the engine coolant rises due to the heat build-up from the engine in
the engine compartment, or
Checking and filling 189
- the engine compartment heats up because
the vehicle is parked in intense sunlight.
A WARNING
-To reduce the risk of personal injury nev­
er touch the radiator fan .
- The auxiliary electric fan is temperature
controlled and can switch on suddenly
even when the engine is not running.
- The auxiliary radiator fan switches on au­
tomatically when the engine coolant
reaches a certain temperature and will
continue to run until the coolant temper­
ature drops.
Brake fluid
Checking brake fluid level
The brake fluid level can be checked with a
quick glance.
Fig. 139 Engin e compart ment: cover on th e br ake fluid
re se rvoir
Before you check anything in the engine com­
partment,
always read and heed all WARN­
INGS c::> .&. in Working in the engine compart­
ment on page 180.
~ Read the brake fluid level from the brake
fluid reservoir
c::> page 182, fig. 134 . The
brake fluid level must be between the "MIN"
and "MAX" markings.
The brake fluid reservoir is located behind the
rear partition of the engine compartment on
the left side
c::> page 182.
The fluid level may drop slightly after some
time due to the automatic adjustment of the brake pads. This is not cause for alarm.
i,,.

190 Checking and filling
If the brake fluid level falls considerably b e­
l ow the "MIN" mark, the brake warning/ indi­
cator light (U .S . mode ls:
1111 , Canad ian
model s:. ) will come on
c> page 14 . Do not
continue to ope ra te the vehicle. The comple te
brake system shou ld be thoroughly checked
by an author ized Audi dealer or ot her quali­
fied fac ility and the cause corrected . If the
b rake fluid level is too low, the b rake war ning/
i ndicator ligh t w ill illuminate. Contact an a u­
thor ized A udi dealer
immediatel y.
Changing brake fluid
Hove the broke fluid changed by on experi­
enced technician.
Brake fl uid abso rbs moist ure from the a ir. If
the wate r content in the b ra ke fluid is too
h igh, cor ros ion in the br ake sys tem may result
after a per iod of t ime . The bo iling point of the
brake fluid wi ll also decrease considerab ly and
decrease braking performanc e.
Therefore, the brake fl uid mus t be changed
every tw o year s. Always use new b rake fluid
which conforms to Federal Motor Veh icle
Standard "FMVSS 1 16 DOT 4".
The brake flu id rese rvoi r can be difficul t to
r each, therefo re , we recommend that yo u
have the brake f luid changed by yo ur autho r­
ized
Audi dealer. Your dea ler has the correct
too ls , the right brake f luid and the know-how
to do this for you.
A WARNING
- Brake fluid is poiso nous . It must be stor­
ed only i n the closed orig inal container
o ut o f the reac h of children!
- Brake fa ilure can result from old o r inap ­
propriate b rake fluid . Observe these pre­
caut ions :
- Use only bra ke fluid that meets SAE
specif ication
J 1 703 and co nforms to
Federal Motor Vehicle Standard 116 .
Always check with your a uthori zed Audi
dealer to ma ke sure you are using the
correct brake flu id. The correct type of brake flu
id is also ind icate d on the
brake f lu id rese rvoir.
- The brake fluid must be new. Heavy use
of the brakes can cause a vapo r lock if
the brake fluid is left in the system too
long. This can seriously affect the effi­
c iency of t he brakes as well as your
safety . T his co uld resu lt in a n accide nt.
([) Note
Brake fluid will damage the paint of your
vehicle.
@ For the sake of the environment
Because o f the prob lem of proper disposal
of brake fluid as well as the spec ial too ls
required and the necessary expertise, we
recomme nd that you have the brake flu id
changed by yo ur autho rize d Aud i deale r.
Battery
General information
Your vehicle is equipped with a specia l bat ­
tery, an
ACM battery. This battery is located
in the luggage compartment and must be re­
placed with an origina l equipment battery .
U nder normal opera ting condit ions, the bat­
te ry is
maintenance-fr ee .
Have the battery checked when you take your
vehicle in for serv ice . You a re well advised to
replace a battery that is o lde r th an 5 years .
Disconnecting the battery terminals
Some vehicle functions (power window reg u­
lators, for example) are lost if the battery te r­
mina ls are disconnected . T hese functions have
to be relearned after the battery termina ls are
connected again . T o p revent t his, t he battery
shou ld only be disconne cted from the veh icle
elect ric a l sys tem when abso lutely ne cessary
f or rep air s.
Vehicles not driven for long periods
If you do not drive your vehicle ove r a period
of seve ral days o r weeks , e lectr ica l compo-
nents a re g radually cut back or switched off.
Ill-

This reduces energy consumption and main­
tains starting capability over a longer period
c::>
page 156. Some of the convenience func­
tions may not operate, such as the interior
lights or power seat adjustment. The conven­
ience functions will be ava ilable again when
you switch on the ignition and start the en­
g ine .
Winte r oper ati on
During the winter months, battery capacity
tends to decrease as temperatures drop. This
i s because more power is also consumed while
start ing, and the headlights, rear window de­
fogger, etc., are used more often .
Avoid unnecessary power consumption, par­
ticularly in city traffic or when traveling only
short distances . Let your authorized Audi
dealer check the capac ity of the vehicle bat­
tery before winte r sets inc::>
page 193. A we ll
charged ba tte ry w ill no t only prevent starting
prob lems when the weathe r is cold, but will
a lso last longer .
Replacing battery
The new battery must have the same capaci­
ty, vo ltage ( 12 volts), amperage, cons truction
and p lug sealing, as the origina l ba tte ry. Spec­
if ications are listed on the batte ry housing.
Batteries specially developed by A udi fulfill
the maintenance, output, and safety require­
ments.
When insta lling the battery, make sure the ig ­
nition and all electrica l cons umers are switch­
ed off c::>
(i).
We recommen d that yo u use ma intenance­
free or
cy cle- re sis tant /leak-pr oof batteries
according to the standards TL 825 06 (from
April 2008) and VW 7 SO 73 (from Apri l
2010).
Replacing the batte ry should be carried by a
q ua lified workshop. P lease follow the instruc­
tions on the battery cover.
Checkin g and fillin g 191
@ Note
-All work on the battery requires techni­
cal know ledge. Please contact an Audi
dealership or another authorized fac ility
for questions about the battery - danger
of ac id burns and exp losion hazard!
- The battery must not be opened! Do not
try to change the battery 's liquid level,
otherwise detonating gas will escape
from the battery - explosion hazard!
- The AGM battery in the luggage com­
partment cannot leak, because the elec­
t ro lyte for this batte ry is abso rbed into a
special glass mat. This lea k-proof battery
must not be replace with a convent iona l
bat tery.
- Make su re the ventilation hose on t he
side of the ba ttery is connected, othe r­
w ise fumes or battery ac id can leak out.
- Batte ry holder and termin als always
have to be sec ured correc tly.
- Before all work on the batte ry follow the
warning s below c::> .&. in Working on the
battery on page
192 .
@ For the sake of the environment
Because of the p rob lem of proper disposal
of a ba ttery, we recommend your author­
i zed Audi dealer change the bat tery fo r
you. Batteries contain sulfuric acid and l ead and must always be disposed of prop ­
erly in comp liance with a ll environmental
regulat ions. Disposing of vehicle batter ies
i mproperly is very dangerous to the envi­
ro nment. Make sure that the removed bat­
tery cannot overbalance, othe rwise sulfu­
r ic acid might escape!
@ Tips
If your vehicle is left standing for several
weeks at extremely low temperatures, the
vehicle battery shou ld be removed and
stored w here it w ill not freeze. This will
p revent it from be ing dam aged and h aving
to be replaced .
•
•

192 Checking and filling
Working on the battery
Be especially careful when working on or near
the battery!
The battery is located in the luggage compart­
ment under the floor. Before you work on or
near the battery,
read and heed all WARN­
INGS ~.&. -
Always heed the safety warnings, when work­
ing on the vehicle battery or the vehicle elec ­
tr ical system to prevent 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 .
b,. Battery acid contains sulfuric acid. Al­
~ ways wear gloves and eye protection.
~~-
No
@ -sparks
-flames
-smoking.
When a battery is charged , it produces
hyd rogen gas which is explosive and
could cause personal injury.
I ~ Always keep the battery well out of
V;!J/ reach of children .
A WARNING
=
Whenever working on the battery or on
the electrical system, there is the risk of
injury, accident and even fire. Read and
heed the following WARNINGS:
- Always wear eye protection. Do not let
battery acid or any lead particles get on
your sk in or cloth ing. Sh ield your eyes.
Explosive gases can cause blindness or
other injury .
- Battery acid contains sulfur ic acid. Sulfu­
ric acid can cause blindness and severe
burns.
- Always wear gloves and eye protection.
Do not tilt the battery because ac id
-
could leak out of the ventilation open­
ings.
- If you get battery acid in your eyes or
on your skin, immediately rinse with cold water for several minutes and get
med ical attention.
- If you shou ld ingest any battery acid,
seek medical attention immediately.
- Do not expose the battery to an open
flame, e lectr ic sparks or an open light.
- Do not smoke .
- Do not interchange the positive and neg -
ative cables .
- When working on the battery, be sure
not to short-circuit the terminals with
too ls or othe r metal objects . This would
cause the battery to heat up very quickly,
which could lead to damage or explosion
and personal injury.
- When a battery is charged, it produces
hydrogen gas which is explosive and
could cause personal injury.
- Always keep the battery well out of the
reach of children.
- Before work is done on the electrical sys­ tem, disconnect the negat ive ground ca­
ble.
- Before performing any work on the e lec­
tr ical system, switch off the engine and
ignit ion as well as any electrical equip­
ment. The negative cable on the battery
must be disconnected .
If you are just go­
ing to replace a light bulb, then it is
enough to switch off the lights.
- Before disconnecting the battery, switch
off the anti-theft alarm system! Other­
wise you will set off the alarm.
- When disconnecting the battery, first disconnect the negative cable and then
the positive cab le .
- Before reconnecting the battery, make
sure all electr ica l consumers are switch­
ed off . Reconnect the positive cable first
and then the negative cable. Never inter­
change the cables - this could start a fire!
- Never charge a frozen or a thawed-out
battery. It could exp lode! If a battery has
frozen, then it must be replaced. A
llll-

194 Checking and filling
When charging at low voltages (e.g . w ith a
tri ckle charger ), the battery cables do not
have to be d isconnected first. Be fore charging
at
high voltages, i.e. " fast charging ", you
must disconnect both cables. In e ither case,
follow the instruct ions from the ma nufacturer
of the charger .
Fastcharging a battery is
dangerous c:> .&. in
Working on the battery on page 192 .
It re­
qu ires specia l charg ing equipment a nd the
k nowledge to go wi th it. We recomme nd hav­
ing your battery fast charged on ly by a quali­
fied workshop.
A discharged batte ry can
freeze at tempera­
tures of on ly 32 °F (0
°(). A llow a frozen bat­
tery to thaw completely befo re attempt ing to
cha rge it
c:> ,&. . Howeve r, we re comme nd not
usi ng a thawe d batt ery again bec ause t he bat­
tery cas ing ca n be cracked d ue to ice forma ­
tion and can lea k bat tery aci d.
D o not open the batte ry caps whe n charg ing
the ba ttery.
_&. WARNING
-
Cha rging a batte ry can be dange rous.
- N ever charge a fro zen b att ery .
It may ex­
plode beca use o f gas t rappe d in t he i ce.
Allow a frozen battery to thaw o ut first .
- D o no t reu se batte ries which we re fr o­
zen . The batte ry housing m ay h ave
c rac ked an d weakened whe n the battery
froze .
- C harge the b attery in a we ll ven tilated
area . Kee p away from open flame o r elec­
trical spa rk. Do not smoke. Hydrogen gas
generated by the battery is exp losive.
- To reduce the danger o f explosion, never
co nnect or disconnect charger cables
wh ile the charger is operating .
- Fast charg ing a battery is dangerous and
shou ld on ly be attempted by a compe­
tent technician w ith the proper eq uip­
me nt.
- Battery acid that may spill d uring charg­
ing should be washed
off wit h a so lution
of warm water and baki ng soda to neu ­
t raliz e the aci d.
(D Note
Neve r use a fast charger as a booster to
start the eng ine. Th is w ill seriously dam­
age sensit ive e lectronic components, such
as cont ro l units, re lays, radio, etc. , as well
as the battery charge r.
(D Tips
The vehicle batte ry must not be charged
with a standard small charger that plugs in to the c igarette lighter or outlet.
Windshield/headlight
washer container
Fi g. 141 Fen der, left: cove r o n th e w inds hield a nd
h ead lig ht• wa sher fl uid re se rvoir
T he was her fluid co nta iner is mar ked w it h the
symbol
Q o n its c a p<=> page 182, fig . 134.
""' Before yo u check anything in the engine
compa rtme nt,
always read and heed all
WARNINGS c:> ..&. in Wor king in the engine
c ompartment on page 18 0.
""' Lift th e fill er ca p tongue to ad d washer flu­
id . You can f ill the containe r to the top .
""' Press the cap back o nto the fi ller neck after
fi lling the container.
You can find the reservo ir
capacity in t he table
in
<=> page 24 0
Clean wa ter should be used when filling up. If
poss ible, use so ft wat er to preven t sc aling o n
t h e washer jets . A lways ad d a glass clea ner
solution (with frost protection in the winter) . ..,.

forget the spare tire. If the press ure in any tire
is too high when the tire is "cold," let air out
of the tire slowly with the edge of the t ire
gauge and keep checking the pressure until
you reach the pressure that is correct for the
load (passengers and luggage) and kind of
driving you plan to do .
If the pressure in any tire is too low, note the
d ifference between the pressure in the cold
tire and the pressure you need and add the a ir
that you need to reach the correct pressure for
the veh icle load (passengers and luggage) for
the tires on your veh icle as listed on the on
your ve hicle and in this manua l and the kind
of dr iving you p lan to do .
Never exce ed the ma ximum inflation pres ­
s ur e listed on t he tire s idewall for any re a­
s on.
Remember that the vehicle manufacturer , not
the t ire manufacturer , determ ines the correct
tire pressure for the tires on your veh icle .
It is important to check the tire pressure when
the t ires a re cold .
- Read the req uired tire press ure from the tire
pressure label located on driver's s ide B-pil­
l ar .
- Turn the valve stem cap counter-clockwise
to remove it from the tire valve .
- Place the air pressure ga uge on the valve.
- The tire pressures sho uld on ly be checked
and adjusted when the tires are cold . The
s light ly raised pressures of warm tires must
not be reduced.
- Adjust the tire pressure to the load you are
carrying.
- Re insta ll the va lve stem cap on the valve .
When should I check the tire pressure?
The correct tire pressure is espec ially impo r­
tant at high speeds . The pressure sho uld
therefore be checked at least once a month
and a lways befo re starting a journey.
When should I adjust the tire pressures?
Adj ust the tire pressu re to the load you are
carry ing . After changi ng a wheel
or replacing
Tire s an d wheel s 203
whee ls yo u have to adjust the ti re p ressu res
o n all whee ls. In addition, yo u m ust then initi­
a lize the new tire pressu res in the t ire pres­
s u re monitoring system
Q page 214.
A WARNING
Incorrect tire pressures and/or underinfla­
tion can lead sudden tire fa ilure, loss of
control, collision, serio us pe rsonal injury
or even death.
- When the warning symbol
[I] appears in
the instrument cluster, stop and inspect
the t ires.
- Inco rrect tire pressure and/or underinfla­
tion can cause increased tire wea r and
can affect the handling of the vehicle and
stopping ability.
- Inco rrect tire pressures and/or underin­
flation can a lso lead to sudden t ire fail­
ure, including a blowou t and su dden de­
flation, ca using loss of veh icle cont ro l.
- Th e drive r is responsi ble for the correc t
tire pressures for all tires on the veh icle.
The applicable pressure values a re locat ­
ed on a sticke r on the dr iver's side B-pil­
lar.
- On ly when all tires on the vehicle are fil ­
led to the correct pressure, the t ire pres­
sure mon itor ing system can work cor­
rectly.
- The use of incorrect tire pressu re va lues
can lead to acc idents or other damage.
Therefore it is essential that the driver
observe the spec ified t ire pressure values
for the tires and the correct pressures for
the function of th e ti r e p ressu re monito r­
ing system.
- Always inf late tires to the recommended
a nd correct t ire p ress ure before dr iv ing
off.
- Driving with unde rinflated tir es bend
mo re, letting t hem get too hot resulting
in tre ad separation, sudden tire f ailure
and loss of cont rol.
- Exces sive speed and/overloading can
cause he at bu ild- up, sudden tire failure
an d loss of cont rol. •
•