
Before you check anything in the engine com
partment,
always r ead and heed all WARN
ING S
~ A in Working in the engine compart
ment on page 165.
.. Read the brake flu id level from the brake
fluid reservoir
9 page 167, fig. 130 . The
brake f lu id leve l must be between the "MIN"
and "MAX" markings.
The brake f luid reservoir is located behind the
rear partition of the engine compartment on
the left side
9 page 167.
The fl uid level may drop slightly after some
time due to the automatic adjustment of the brake pads . This is not cause for alarm .
If the brake fluid level falls considerably be
l ow the "M IN" mark, the brake wa rning/indi
cator light (U .S . mode ls:
1111 , Canadian
models: .) will come on ¢
page 14 . Do not
continue to operate the vehicle. The complete
brake system shou ld be thoroughly checked
by an authorized Audi dealer or other quali
f ied fac ility and the cause corrected . If the
b rake fluid level is too low, the brake warn ing/
i ndicator light w ill illuminate . Co ntact an au
thor ized Audi dealer
immediately .
Changing brake fluid
Have the brake fluid changed by an experi
enced technician .
Brake fluid abso rbs moistu re from the a ir . If
the water content in the brake fluid is too
hi gh, cor ros ion in the b rake system may result
after a per iod of t ime . The bo iling po int of t he
b ra ke fluid w ill also decrease considerab ly and
decrease braking performance.
Therefore, the brake flu id must be changed
e very two year s. Always use new b rake fluid
which confo rms to Fede ral Motor Vehicle
Standard "FMVSS 1 16 DO T 4".
The brake flu id rese rvoi r ca n be difficult to
r each, therefo re , we recommend that yo u
h ave the brake fl uid changed by you r autho r
i zed
Audi dealer . Your deale r has the correct
Checkin g and fillin g 175
tools, the right brake fl uid and t he know -how
to do this for you .
A WARNING
-Brake flu id is poisonous. It must be stor
ed only in the closed or iginal container
out of the reach of children!
- Brake failure can res ult from o ld or inap
propriate brake f lu id. Observe these pre
cautions:
- Use only b rake fluid th at mee ts SA E
spe cificat ion
J 17 03 and conforms to
Federa l Mo to r Ve hicl e Standard 1 16.
Always check with yo ur authorized Au di
dealer to make sure yo u are using the
correct brake fluid. The cor rect type of
brake f luid is also ind icated on the
brake f luid reservoir .
- The bra ke fluid must be new. Heavy use
of the brakes ca n cause a vapor lock if
the brake fluid is left i n the system too
long. This can se riously affect the effi
c iency of the b rakes as well as your
safety , T his could result in an accide nt.
(!) Note
Brake fluid will damage the pai nt of your
vehicle.
@) For the sake of the environment
Because of the prob lem of proper disposal
of brake fluid as well as the spec ial too ls
r equired and the nec essary expertise, we
r ecommend that yo u have th e brake flu id
c hanged by you r aut ho rized Aud i dea le 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 batte ry .
Un der normal ope rat ing condit io ns, t he bat-
te ry is
maintenanc e-free . .,.
•
•

176 Check ing and filling
Have the battery checked when you take your
vehicle in for service. You are well advised to replace a battery that is older than S years .
Disconn ect ing the battery terminals
Some veh icle functions (power w indow regu
lators, for example) are lost if the battery ter
minals are disconnected . These functions have
to be re learned after the battery terminals are
connected again. To prevent this, the battery
should only be d isconnected from the vehicle
electr ical system when absolutely necessary
for repairs .
V ehicles not dri ven for l ong period s
If you do not drive your vehicle over a period
of several days or weeks, electrical compo nents are gradually cut back or switched off .
This reduces energy consumption and main tains starting capab ility over a longer period
c:::>
page 147. Some of the convenience func
tions may not operate, suc h as the inte rior
l ights or power seat adjustme nt. The conven
i ence functions wi ll be ava ilable aga in whe n
you switch on the ignition and start the en
gine.
Winter operati on
During the winter months, batte ry capacity
tends to decrease as tempe ratu res d rop . This
is because more powe r is also consumed while
start ing , and the headlights, rea r window de
fogger, etc., are used more often.
Avoid unnecessary power consumption, par
ticularly in c ity traffic or when t rave ling on ly
short distances. Let you r authorized Aud i
dea ler check the capacity of the vehicle bat
tery before winter sets inc:::>
page 179 . A we ll
charged battery w ill not only prevent starting
prob lems when the weather is cold, but will
a lso last longer .
Replacing battery
The new battery must have the same capaci
ty, vo ltage (12 volts), amperage, construction
and p lug sealing, as the origina l battery. Spec
if ications are listed on the battery housing.
Batteries specially developed by Audi fulfill the maintenance, outp
ut, and safety require
ments .
When install ing the battery, m ake su re the ig
ni tion and a ll ele ct rical consumers are switch
ed off
c:::> (i) .
We recommend that you use maintenance
free or
cy cle-re si stant /leak -proof b atter ies
accord ing to the s tanda rds TL 825 06 (from
Apri l 2008) and VW 7 SO 73 (from April
2010) .
Rep lac ing the bat tery shou ld be car ried by a
qualified wo rkshop. Please fo llow the instruc
tions on the battery cover .
(D Note
- All wo rk on the ba tte ry req uire s techn i
c al know ledge . Please con ta ct an Aud i
dealership o r another authorized faci lity
for questions abo ut the batte ry -danger
o f 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 l uggage com
partment cannot leak, because the elec
tro lyte for this battery is absorbed into a
special glass mat. This leak-proof battery
must not be replace with a convent ional
battery.
- Make sure the ventilation hose on the
side of the battery is connected, other
w ise fumes or battery ac id can leak out .
- Batte ry holder and termina ls always
have to be secured correctly .
- Before all work on the battery follow the
warnings be low c:::> .&. in Working on the
battery on page 177.
@ For the sake of the environment
Because of the prob lem of proper disposal
of a battery, we recommend your author
iz ed Audi dealer change the battery for
you. Batteries contain sulfur ic acid and
l ead and must a lways be disposed o f prop-
erly in compliance wi th al l envi ronmental ..,.

1 78 Che cking and filling
must be disconnected . If you are just go
ing to rep lace a light bu lb, then it is
enough to switch off the lights.
- Before disconnecting the battery, switc h
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 cable .
- Before reconnect ing the battery, make
sure all electrical consumers are switch
ed off . Reconnect the positive cable first
and then the negative cable. Never inte r
change the cables - th is could start a fire!
- Never charge a frozen or a thawed-out battery.
It could explode! If a battery has
frozen, then it must be replaced. A dis
charged battery ca n freeze over at 32 °F
(0 oc).
- Make sure the vent hose is always attach
ed to the opening on the side of the bat
tery .
- Never use batte ries which are damaged.
Danger of explos ion! Always rep lace a
damaged battery .
8_ WARNING
California Proposition 65 Warning:
- Battery posts, te rm inals and related ac
cessories contain lead and lead com
pounds, chemicals known to the State of
California to cause cancer and reproduc
tive problems. Wash hands after han dling.
(D Note
- Do not disconnect the vehicle battery when the ignition is switched on
or when
the engine is running, otherwise, you will
damage e lectronic components in the
electrical system.
- If your vehicle is going to stand for a long period of time without being driven,
protect the battery from "freezing", oth
erwise it w ill be damaged and w ill then
have to be replaced .
Checking the battery acid level on magic
eye batteries*
The battery acid level in the battery can be
checked through the clear inspection window .
Fig . 1 36 Lu gga ge compar tment: Battery w ith magic
eye .
On top of the battery, there is a round "win
dow". This window (magic eye) changes co lor
as the battery cha rge and ac id leve l change.
.,. Read and heed all WARNINGS
<=> .&_ in
Working on the battery on page 177
.,. Read the acid level from the window on the
battery <=>
fig. 136.
Air bubbles in the window can cause an inac
curate reading . Carefu lly tap on the s ide of
the window.
- If the window is
green , the battery acid level
is correct.
- If the window has
no colo r or is brigh t y el
lo w,
the battery acid level is too low . Have
the battery tested by your author ized Audi
dea ler or a qualified workshop.
- If the w indow is
black , then the battery is
insufficiently charged . Recharge the battery
as soon as possible¢
page 179 .
(D Note
Do not overfill the battery, otherw ise bat
tery acid will ove rflow through the vent
opening . This can damage the paint and
cause corrosion .

Charging of battery
Starting the engine requires a well charged battery.
11-Al way s read and heed all WARNING S be
low¢
A and ¢ A in Working on the bat
tery on page 177.
11-Switch off the ignit ion and all electrical con
sumers.
11-Make sure the area is well vent ilated when
you charge the bat tery.
11-Connect charger cables. ALWAY S co nnect
charge r cables POSITI VE
G) to POSITIVE
G) ; NEGATIVE Qto NEGA TIV E Q .
11-Switch on the charger.
11-Turn off the charger¢ &_.
11-Disconnect the charger cables.
11-Connect both battery cables to the battery if
necessary -
first plus, then m inus.
When charging at
low voltages (e.g. with a
trickle charg er), the battery cables do not
h ave to be d isconnected first. Before charging
at
high voltages, i.e. " fas t charging ", you
must disconnect both cables. In e ithe r case,
follow the instru ctions from the man ufactu rer
of the charger .
Fastcharging a battery is
dan gerou s¢ & in
Working on the battery on page 177.
It r e
q ui res specia l charg ing equipment and the
know ledge to go with it. We recommend hav
ing your battery fast charged on ly by a quali
f ied workshop .
A discharged battery can
freeze at tempera
tures of on ly 32 °F (0 °C). A llow a frozen bat
tery to thaw completely befo re attempting to
charge it¢ & . However, we recommend not
using a thawed battery again because the bat
tery cas ing can be cracked due to ice forma
tion and can leak battery acid.
Do not open the battery caps when charging
the battery.
A WARNING
-
Charging a battery can be dangerous.
Checkin g and fillin g 179
-Never charge a frozen battery. It may ex
plode because of gas trapped in the ice.
Allow a frozen battery to thaw out first.
- Do not reuse batteries wh ich were fro
zen. The battery housing may have
cracked and weakened when the battery
froze.
- Charge the battery in a well ventilated
area. Keep away from open flame or elec
trical spark. Do not smoke. Hydrogen gas
generated by the battery is explos ive.
- To reduce the danger of explosion, never
connect or d isconnect c harger cab les
while the charger is ope rat ing.
- Fast cha rging a batte ry is dangerous and
should only be attempted by a compe
tent techn ic ian with the prope r equip
men t.
- Battery acid that may spi ll dur ing cha rg
i n g should be washed off wi th a solu tion
of wa rm w ater and baking soda to neu
trali ze the ac id.
(D Note
Neve r use a fast cha rg er as a boost er to
star t the engi ne. This w ill ser iously dam
age sens it ive e lectronic componen ts, su ch
as cont ro l units, re lays, radio, etc., as well
as the batte ry charger.
(D Tips
T he vehicle ba tte ry mu st not be charged
wi th a standa rd small charger that plugs
into t he cigarette lighter or outlet . •
•

180 Checking and filling
Windshield/headlight
washer container
M N
Fi g. 137 Fender , left : cover on t he w inds hield a nd
headl ig ht* was her fl uid reservoir
The washer flu id container is marked wi th the
symbol
Q on its cap <=>page 16 7, fig . 130 .
.. Before you check anyth ing in the engine
compartment,
alw ays re ad an d heed all
W ARNING S r=> A in Working in the engine
compartment on page 165 .
.,. Lift the filler cap tongue to add washer flu
id . You can fill the container to the top .
.,. Press the cap back onto the fi ller neck after
filling the containe r.
You can find the reservoir
ca pacity in the table
i n
r=> page 224 .
Clean water should be used when filling up . If
possible, use soft water to prevent scal ing on
the washer jets . Always add a glass cleaner
solutio n (with frost p rotection in the winter) .
(D Note
-Do not mix engine coolant antifreeze or
any other addi tives to fill up the wind
shield washer rese rvoi r.
- Do not use glass cleaners contain ing
paint solvent; you r isk damaging the
paint.

186 Tire s and wheel s
you have stored . The system does not
recognize the load condition of your vehicle.
The effectiveness of the tire pressu re monito r
ing system w ill be impaired if yo u store nor
mal load pressures but then operate the vehi
cle at its maximum load¢.&..
See the il lustration¢
fig. 138 for the location
of the label on dr iver's side 8-pillar (color of
the actua l labe l and exact location on the ve
hicle wi ll vary slightly).
Note that the followi ng tab le is accurate a t
the time o f go ing to press and is subject to change. In the
event of discrepancies, the t ire
pressure label (on driver's side 8-pi llar) a lways
takes precedence .
T he table below lists the recommended cold
ti re inflation pressu res for the Audi mode l
covered by your Owner's Literature at the vehi
cle's capacity weight and the t ire sizes instal
l ed on the respective models as original
equipment, or as a factory option.
Model/ Tire designation
Tire pressure front Tire pressure rear
Engine full load full load
no rmal load
condition normal load
condition
condition (2 occupants condition
(2 occu-
( up to 2 oc-
plus lug- (up to 2 oc-
pants plus
cupants)
gage) cupants)
luggage)
PSI kPA PSI kPA PSI kPA PSI kPA
TT /TTS : 22 5/50 Rl 7 94H All Sea -
32 220 32 220 29 200 29 200 2.0 liter son
4-c ylin-225 /50 Rl 7 94W XL High
d er
Perf orm ance
32 220 32 220 29 200 29 200
2
45 /4 5 Rl 7 95 H All Sea-
32 220 32 220 29 200 29 200 son
245 /45 Rl7 95YX L High
32 220 32 220 29 200 29 200 Perf ormance
245 /40 R1 8 93H All S ea-
32 220 32 220 29 200 29 200 son
2 45 /40 Rl8 9 3Y XL High
32 220 33 230 29 200 30 210 Perform ance
25 5/35 Rl 9 96Y XL Hi gh
32 220 32 220 29 200 29 200 Perf or mance
X L= r ein for ce d or e xtra lo ad tire . It m ay also a ppear as xl, EX TRA LO AD, or RF on th e tire side-
w all.
The correct tire pressure for the spare wheel is
l ocated on a label on the driver's side 8-pillar.
Because technical changes may be made to
vehicle equ ipment dur ing the model year, al
ways compare the tire size designation on the
tire pressure labe l on your vehicle w ith the
tires on your vehicle. Ma ke sure that the tire
size information on the vehicle label is the same
as the size of the tires on the veh icle.
T his is espec ially important if the veh icle be
longs to someone e lse or you boug ht the vehi
cle w ith different rims/tires or you bought the
vehicle as a previously owned veh icle.
Remember, your safety and that of your pas-
sengers also depends on making sure that
II>-

188 Tire s and wheel s
forget the spare tire. If the pressure in any tire
is too high when the tire is "cold," let air out
of the tire slowly with the edge of the tire
ga uge 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 air
that you need to reach the correct pressure for
the vehicle 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 exc eed th e maximum inflati on pres
sure listed on th e tir e s idewall for any rea
s on.
Remembe r that the vehicle manufacturer, not
the t ire manufactu rer, determ ines the correct
tire pressure for the t ires on your vehicle.
It is important to check the tire pressure when
the t ires a re cold .
- Read the requ ired tire press ure from the tire
pressure label located on driver's side B-pil
lar .
- Turn the valve stem cap counter-clockwise
to remove it from the tire valve.
- Place the air pressure gauge on the valve.
- The tire pressures sho uld only be checked
and adjusted when the tires are cold. The
slightly raised pressures of warm tires must
not be reduced.
- Adjust the tire pressure to the load you are
carrying.
- Re insta ll the valve stem cap on the valve.
Wh en should I check the tir e pr essure?
The correct tire pressure is espe cially impor
tant at high speeds . The pressure should
therefore be checked at least once a month
and a lways before starting a journey.
When should I ad ju st the tire pressures?
Adj ust the t ire p ressu re to the load yo u are
carry ing . After changing a wheel
or replacing whee
ls you have to adjust the tire p ressures
o n all whee ls. In addition, yo u m ust then initi
alize the new tire press ures in the t ire pres
s u re monitoring system¢
page 199.
A WARNING
Incorrect tire pressures and/or underinfla
tion can lead sudden tire fa ilure, loss of
control, collision, serious pe rsonal injury
or even death.
- When the warn ing symbol
RI] appears in
the instrument cluster, stop and inspect
the t ires.
- Incorrect tire pressure and/or underinfla
tion can cause increased tire wea r and
can affect the handling of the vehicle and
s topping ability.
- I nco rrect tire pressures and/or underin
f lation can a lso lead to s udden t ire fail
ure, including a blowout and su dden de
flation, ca using loss of veh icle cont ro l.
- The drive r is responsible for the co rrec t
tire pressures for all tires on the veh icle .
The applicable pressure values are loca t
ed on a sticker on the driver's side B -pil
lar.
- On ly when all tires on the vehicle are fil
led to the correct pressu re, the tire 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 the t i re p ress ure monito r
ing system.
- Always inf late tires to the recommended
and correct t ire pressure before dr iv ing
off.
- Driving with unde rinf lated tires bend
mo re, letting them get too hot resulting
in tre ad separation, sudden tire failure
and loss of cont ro l.
- Excessive speed and/overloading can
cause heat b uild- up, sudden tire failure
and loss of cont ro l.

200 Tires and wheels
remain continuo usly illuminated . This se
quence will continue upon subsequent vehicle
start-ups as long as the ma lfunction ex ists.
When the malfunction indicator is illuminat
ed, the system may not be able to detect or
signal low tire pressure as intended. TPMS
malfunctions may occur for a variety of rea
sons, including the installation of replace ment or alternate tires or wheels on the vehi
cle that prevent the TPMS from functioning properly . Always check the TPMS malfunction
tellta le after replacing one or more t ires or
wheels on your veh icle to ensure that the re
placement or alternate tires and wheels allow
the TPMS to continue to function properly.
Tire pressure indicator appears
Applies to vehicles: with tire pressure monitoring system
The tire pressure indicator in the instrument
cluster informs you if the tire pressure is too
low or if there is a system malfunction.
F ig. 143 Display : underi nflat io n warn ing
Using the ABS sensors, the tire pressure moni
toring sys tem compares the t ire tread circum
ference and vibration characteristics of the in
d iv idual tires . If the pressure decreases in one
or more tires, th is is indicated in the instru
ment clus ter with a warning symbo l
ail and a
message<>
fig. 143. The dr iver message in the
display goes out after 5 seconds . The driver
message can be displayed again by pressing
the
! CHECK I button @¢ page 10, fig . 3 . If on
l y one tire is affected, the display will indicate
its pos ition.
The tire press ure monitoring m ust be reset in
the menu display each time the pressures are
ad justed (e.g. when switching between parti- al and fu
ll load pressure) or after changing or
replacing a tire on your vehicle<>
page 201.
The TPMS indicator only mon itors the t ire
pressure that you have previously stored . You
can find the recommended tire pressures for
your vehicle on the label on the driver's door
pillar
¢ page 185.
Tire tread circumference and vibration charac
teristics can change and cause a tire pressure
warning if:
- the t ire pressure in one or more tires is too
low,
- the tire has structural damage,
- the tire pressure was changed, wheels rotat -
ed or replaced but the TPMS was not reset
¢ page 201.
Warning symbols
ail Loss of pressure in at least one tire¢& .
Check the tire or tires and replace or repa ir if
necessary . The indicator light
HE in the instru
ment cluster also illuminates
<>page 13.
Check/correct the pressures of all four tires
and reset TPMS in the menu display .
ffim (T ire Pressure Monitoring System) Tire
pressure! System malfunction. Ifffim
ap
pears after switching the ignition on or while
driv ing and the indicator lig ht
HE in the in
strument cluster blinks for approx ima tely one
minute and then stays on, there is a system
malfunction .
At tempt to store the correct tire pressure
¢ page 201. Ifthe indicator light does not
turn
off or if it turns on shortly thereafter, im
med iate ly drive your vehicle to an author ized
Audi dealer or author ized repair facility to
have the malfunction corrected.
_&. WARNING
-
- If the tire pressure indicat or appears in
the instrument cluster display, one or
more of your tires is significant ly under
inflated . Reduce your speed immediately
and avoid any hard steer ing or braking
maneuvers. Stop as soon as possible and
check the tires and their pressures.
IJJ,,