
Check ing and F illing
The location of the coolant expansion tank can be
seen in the engine compartment illustration
c::> page 179.
To obtain an accura te reading, the eng ine must
be switched off .
The expans io n tank in your vehicle is equipped
with a n elec tric coolant level sensor.
When the coolant level is too low, the war ning
lig ht in the Auto-Check System
c::> page 14 will
blin k until you add coo la nt and the level has bee n
restored to normal. Even t hou gh the re is an e lec
tr ic coolant level sensor, we still re commend you
check the coo lant level from time to time .
Coolant loss
Coolant loss may indicate a leak in the cooling
system. I n the event of coolant loss, the cooling
system should be inspected immediately by your
author ized Audi dealer. It is not enough me rely
to add coolant.
I n a
se aled system, losses can occur only if the
boi ling point of the coo lant is ex ceeded as a re
sul t of over heat ing.
A WARNING
T he cooling system is unde r pressure and can
get very hot . Red uce the risk of scalding from
hot coolant by following these steps.
- Turn off the eng ine and a llow it to cool
down .
- Protect your face, hands and arms from es
caping fluid and steam by cove ring the ca p
with a la rge, thick rag.
- Turn the cap s lowly and very ca refu lly in a
counter-clockwise direction w hile ap ply ing
light, downwa rd pressure o n the top of the
cap.
- To avo id being burned, do not sp ill anti
freeze or coolant on the exha ust system or
hot eng ine parts. Under certain conditions,
the ethy lene g lycol in e ngine coolant can
catch fire.
(D Note
Do not add any type of radiato r leak sealant
to your veh icle's engine coolant. Adding radia-
184
tor repair fluid may a dverse ly affect the func
tion and performance of your coo ling system
and could result in damage not covered by
your New Vehicle Limited Warranty.
Adding coolant
Be very careful when adding engine coolant.
Befo re yo u check any thing in the engine compart
ment,
always read and heed all WARNINGS
c::>
A in Working in the engine compartment on
page 177.
Requireme nt: The re mus t be a res idual amo unt
of coolant in the expans ion tank
c::> (D .
""Tur n off t he engine .
"" Let the eng ine cool down.
"" Pla ce a thick rag over the coolan t ex pan sio n
tank
c::> page 183, fig. 152 and carefull y turn
the cap counter-clockwise
c::> ,&. .
""Add coolant m ixed in the cor rect rat io
c::>page 183, Coolant up to the MAX ma rking.
"" Make sure that the fluid level remains stab le.
Add more coolant if necessa ry .
"" Twis t the cap o n aga in
tightly.
Replacement eng ine coolant must conform to ex
act specifications
c::> page 183, Coolant.
We recommend using only coo lant ad ditive G 12+
+ , G13 or in an emergency G12+. Do
not use a
different additive. In an emergency use plain wa
te r unt il you can get the cor rect addit ive and ca n
r esto re the cor rect rat io. Thi s should be done as
soon as possib le.
If you have lost a considerable amount of coo l
an t, then you s hou ld add co ld a ntifreeze and cold
water only whe n the engine is co ld.
A lways use
new engine coo lant when ref illing.
Do no t fill c oolant above the "MAX" mark . Excess
coolant will be forced out th rough the pressure
r elief valve in the cap when the engine becomes
hot.
~

A WARNING ,~
- The cooling system is under pressure and
can get very hot. Reduce the risk of scald ing
from hot coolant by following these steps.
- Turn
off the engine and allow it to coo l
down.
- Protect you r face, hands and arms from
escaping fluid and steam by cover ing the
cap with a large, thick rag.
- Turn the cap slowly and very carefully in a
counter-clockwise d irection while applying
light, downward p ressure on the top of
the cap.
- To avoid being burned, do not spill anti
freeze or coolant on the exhaust system or
hot engine parts. Under certa in cond i
tions, the ethylene glycol in eng ine cool
ant can catch fire.
- Antifreeze is poisonous. Always store anti
freeze in its orig inal container and well out
of the reach of children.
- If you dra in the coolant, it must be caught
and safely stored in a proper conta iner
clearly marked "poison".
- Do not add coolant if the expansion tank is
empty. Air cou ld enter the cooling system
and damage the eng ine. If this is the case,
do not continue driving . Seek professional
ass istance.
- Coolant pollutes the env ironment and could
cause an eng ine fire. Excess coolant will be
fo rced o ut through the pressure relief valve
i n the cap when the e ng ine be comes hot.
- If, in an emergency, only wate r can be add
ed, the co rrect r atio betwee n wate r and an
tifree ze
Q page 183 must be res to red as
soon as possib le.
{® For the sake of the environment
Dra ined coolant sho uld not be reused. Always
disp ose of used coolant while obse rving all
....
"' environment al regulat ions. ci ::, co ....
Ch eck ing and Filling
Rad iator fan
The radiator fan switches on automatically by it
self .
The radiator fan is driven by the engine via the V
belt. The viscous clutch regulates th e speed of
the fan accord ing to the temperature of the cool
ant .
An auxiliary e lectr ic radiator fan* switches on and
off depending on coo lant temperature and other
vehicle operating conditions.
After you switch the engine
off, the auxiliary fan
can continue running for up to 10 m inutes -even
with the ignition
off. It can even switch on aga in
later by itself
Q .& , if
- the temperature of the engine coolant rises due
to the heat build-up from the engine in the en
gine compartment, or
- the engine compartment heats up beca use the
veh icle is parked in intense sunlight.
A WARNING
- To reduce the r isk of persona l injury neve r
touch the radia to r fan .
- The auxiliary e lectr ic fan is temperature
controlled and can switch on s uddenly even
when the engine is not ru nning .
- The a uxiliary radiator fan sw itches on auto
mat ically when the eng ine coolant reaches a
certa in temperature a nd will continue to run
until the coolant temperature d rops.
185

Checking and Filling
Brake fluid
Checking brake fluid level
The brake fluid level can be checked with a quick
glance.
Fig. 153 Eng ine compartment: Cover on the brake fluid
r eservoir
Before you check anything in the engine compart
ment,
always read and heed all WARNINGS
¢ A in Working in the engine compartment on
page 177.
., Read the brake fluid level from the brake fluid
reservoir
<=> fig . 153, ¢page 179, fig . 149 . The
brake fluid level must be between the
" MIN"
and "MAX " markings.
The brake fluid reservoir is located at the rear
partition of the engine compartment on the left
side ¢
page 179 .
The fluid 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 below
the ' 'MIN" mark, the brake warning/indicator
light (USA models:
1111 , Canada models:. )
will come on¢
page 13 . Do not continue to oper
ate the vehicle . The complete brake system
should be thoroughly checked by an authorized
Aud i dealer or qualified workshop and the cause
corrected. If the brake fluid level is too low, the
brake warning/indicator light w ill illuminate.
Contact an author ized Audi dealer
immediately.
(D} Tips
The brake fluid reservoir is located under
neath the cover.
186
Changing brake fluid
Have the brake fluid changed by an experienced
technician .
Brake fluid absorbs moisture from the air. If the
water content in the brake fluid is too high, cor
rosion in the brake system may result after ape
riod of time . The boiling po int of the brake fluid
will a lso decrease considerably and decrease
braking performance.
Therefore , the brake fluid must be changed
every
two years .
Always use new brake fluid which con
forms to Feder-al Motor Vehicle Standard "FMVSS
116 DOT 4 ".
The brake fluid reservoir can be difficult to reach ,
therefore, we recommend that you have the
brake fluid changed by your author ized
Audi
dealer .
Your dealer has the correct tools, the
right brake fluid and the know-how to do this for
you.
A WARNING
- Brake fluid is poisonous. It must be stored
only in the closed original container out of
the reach of children!
- Brake fai lure can result from o ld or inappro
priate brake fluid. Observe these precau
tions:
- Use only brake fluid that meets SAE speci
fi cation
J 1703 and conforms to Federal
Motor Veh icle Standard 116. Always check
with your authorized Audi dealer to make
sure you are using the correct brake fluid .
The correct type of brake f luid is also indi
cated on the brake fluid reservoir.
- The brake fluid must be new . Heavy use of
the brakes can cause a vapor lock if the
brake fluid is left in the system too long .
This can seriously affect the efficiency of
the brakes as well as your safety. This
could result in an accident.
(D Note
Brake fluid will damage the paint of your vehi-
cle .
lilJJ,

Wheels
and a special procedure. You must not repair or
disassemble them¢&. .
A WARNING
Wheel bolts that are tightened or repaired in
correctly can become loose and result in loss
of vehicle control, which increases the risk of
an accident. For the correct t ightening specifi
cation, refer to ¢
page 214, After changing a
wheel .
- Always keep the wheel bolts and the
threads in the wheel hub clean and free of grease.
- Only use wheel bolts that fit the rim .
- Always have damaged rims repaired by an
authorized Audi dealer or authorized Aud i
Service Facility . Never repair or disassemble
rims yourself, because this inc reases the risk
of an accident.
Winter tires
Winter tires s ignificantly improve the vehicle's
handling when driving in winter conditions . Be
cause of their construction (width, compound,
tread pattern), summer tires provide l ess trac
tion on ice and snow.
.,. Use winter tires on all four wheels.
.,. Only use winter tires that are approved for your
vehicle.
.,. Please note that the maximum permitted
speed may be lower with winter tires
q .&,. . An
authori zed Audi dealer or authori zed Audi Serv
ice Facility can inform you about the maximum
permitted speed for your tires .
.,. Check the tire pressure after install ing wheels
q page 201.
The effectiveness of winter tires is reduced great
ly when the tread is worn down to a depth of
0 .157 inch (4 mm). The character istics of winter
tires also decrease greatly as the tire ages, re
gardless of the remaining tread.
A WARNING
- Never drive faster than the maximum per
mitted speed for your tires. This cou ld cause
the tires to heat up too much. This increases
206
-
the risk of an accident because it can cause
the tire to burst.
- Always adapt your driving to the road and
traffic conditions . Drive carefully and reduce
your speed on icy or slippery roads . Even
winter tires can lose traction on black ice .
@ For the sake of the environment
Reinstall summer tires at the appropriate
time, because they prov ide better handling
when roads are free of snow and ice. Summer
tires cause less road noise, tire wear and fuel
consumpt ion .
(D Tips
You can also use all season tires instead of
winter tires. Please note that in some coun
tries where winter tires are required, only
winter tires w ith the ~ symbol may be per
mitted.
Snow chains
Snow chains improve traction in the snow .
.,. Only install snow chains on the front wheels.
This applies also to vehicles with all wheel
drive* .
.,. Check and correct the seating of the snow
chains if necessary after driving a few feet. Fol
low the instructions from the manufacturer.
.,. Note the maximum permitted speed when dr iv
ing with snow chains. Do not exceed 30 mph (SO km/h).
Snow cha ins not only improve the
driving in win
ter road conditions, but also the
braking .
Use of snow chains is only permitted with certain
rim/tire combinat ions due to technical reasons .
Check with an author ized Audi dealer or author
ized Audi Service Facility to see if you may use
snow chains.
The snow chains must have
low-profile links and
must not be thicker than 0.53 inch (13.5 mm),
including the lock.
You must remove the chains when driving on
roads that are
free of snow . When roads are free ..,.

Emerg enc y assis ta nc e
emergency flashers on and use other
warning dev ices to alert other motorists.
- Make sure that passengers wait in a safe
place away from the vehicle and well away
from the road and traffic.
- To help prevent the vehicle from moving
sudden ly and possibly slipp ing off the jack,
always fully set the parking brake and block
the wheel diagonally oppos ite the wheel be
ing changed with the folding chocks or oth
er objects. When one front wheel is lifted
off t he g ro u nd, plac ing the Automatic
T ransmission in "P" (Park) will
not prevent
the vehicle from moving.
- Before you change a wheel, be su re the
ground is level and firm. If necessary, use a
stu rdy board under the jack.
- Always store the veh icle tool k it, the jack
and the replaced tire in the luggage com
partment
r=> page 100.
(D Note
If you are cha nging the wheel on a steep in
cline, use the folding choc k
r=> page 212 to
block the oppos ite wheel to preven t the vehi
cle from moving .
(D Tips
Obey all laws.
Changing a wheel
When you change a wheel, follow the sequence
described below step-by-step and in exactly that
order.
1. Remove the dec orati ve w heel co ver* or the
wh eel bolt cap s*. For more deta ils see also
r=> page 215.
2. Loosen the wh eel b olt s r=> page 215 .
3. Locate the proper mounting point for the
jack and align the jack below that point
r=> page 216.
4. Lift the car with the jack r=> page 216.
S. Remove the wheel with th e fla t ti re and then
i nstall the
s p are t ire r=> page 217.
6. Tighten all wheel bo lts lightly .
7 .
Lower the veh icle w ith the jack.
214
8 . Use the whee l bolt wrench and firml y tighten
all wheel bo lts in a crisscross pattern
r=> page 215.
9. Replace the deco rative whee l co ver* or the
wheel bolt c aps* .
A WARNING
Always read and follow all WARNINGS and in
formation
r=> .&. in Raising the vehicle on
page 216
and r=> page 218.
After changing a wheel
A wheel change is not complete without the do
ing the following .
.,. Always store the vehicle too l kit, the jack* and
the replaced tire in the luggage compartment
¢ page 100 .
.,. Check the tire pres su re of the spare t ire as soon
as poss ible .
.,. As soon as possib le, have the
tigh tening tor
que s
on a ll wheel bolts checked with a torque
wrench. The correct tightening torque is
105 ft
lbs.
(140 Nm) .
.,. Have the flat tire
re pl ac ed as soon as poss ib le .
(D Tips
- If you notice that the wheel bo lts a re cor
roded and difficult to turn while changing a
t ire, they shou ld be replaced before you
check the t ightening torque.
- Drive at reduced speed until you have the
t ightening torques checked .

.... N
c:i ::J CX)
.... I.Cl U"I
N I.Cl ......
Removing the wheel covers/bolt caps
Fig. 165 Changin g a whee l: remo ving the wheel cover
Fig. 166 C h an gin g a w hee l: remov ing t he wheel bolt caps
Wheel cover*
.. Insert the hook provided with the vehicle tool
kit in the hole in the hub¢
fig. 165.
.. Pull off the decorative wheel cover .
Wheel bolt caps*
.. Push the plastic clip provided with the vehicle
tool kit over the wheel bolt cap until it engages
¢fig . 166.
.. Pull on the plastic clip to remove the cap.
Loosening and tightening the wheel bolts
The wheel bolts must be loosened before raising
the vehicle .
Fig. 167 Ch ang ing a whee l: loose ning the w heel bolts
Emergency assistance
Loosening
.. Inst all the wheel bolt wrench over the wheel
bolt and push it down as far as it wi ll go .
.. Take tight hold of the
end of the wrench hand le
and turn the wheel bolts
counter-clockwise
about one single turn in the direction of arrow
¢fig. 167.
Tightening
.. Insta ll the wheel bolt wrench over the wheel
bolt and push it down as far as it w ill go.
.. Take tight hold of the
end of the wrench hand le
and turn each wheel bolt
clockwise until it is
seated.
A WARNING
-- Do not use force or hurry when changing a
wheel -you can cause the vehicle to slip off
the jack and cause serious personal injuries .
-Do not loosen the wheel bolts more than
one turn
befo re you raise the vehicle with
the jack. -You risk an injury.
(0 Tips
-Never use the hexagonal socket in the han
dle of the screwdr iver to loosen or tighten
the whee l bolts.
- If a wheel bolt is very tight, you may find it
easier to loosen by ca refully pushing down
on the end of the whee l bolt wrenc h with
one foot only. As you do so, hold on to the
car to keep yo ur balance and take care not
to slip.
215

.... N
c:i ::J CX)
.... I.Cl U"I
N I.Cl ......
-Make sure jack posit ion is correct , adjust
as necessary and then cont inue to raise
the jack.
- If work has to be done under the vehicle,
ensure that it is safely supported on su ita
ble stands -risk of injury!
- Never start the engine when the vehicle is
on the jack -risk of accident!
CD Note
Do not lift the vehicle by the sill. Position the
vehicle jack on ly at the designated lifting
points on the sill. Otherwise, your vehicle will
be damaged.
Taking the wheel off/installing the spare
tire
F ollow these instructions step-by-step for chang
ing the wheel .
Fig. 170 C hangin g a w heel: using th e hexagonal s oc ket
(w it h the blade removed ) to turn t he bolt s
Fig. 171 Chan gin g a w hee l: a lig nm ent pin in side the to p
h ol e
After you have loosened all wheel bolts and
raised the vehicle off the ground, remove and re
p lace the whee l as follows:
Em ergen cy a ssis tanc e
Removing the whe el
"' Remove the topmost wheel bolt completely
with the
he xagona l s oc ket in the screwdriver
handle (vehicle too l kit)
c::> fig. 170 and set it
aside on a
clean surface.
.. Screw the threaded end of the
alignment pin
from the tool kit hand-tight into the empty bolt
hole
c::> fig . 171.
"' Then remove the other wheel bolts as described
above .
"' Take off the whee l leaving the alignment p in in
the bolt hole
c::> G) .
Putting on the spare tire
"' Push the spare tire over the alignment pi n
c::>(D .
"' Screw on the whee l bolts and tighten them
slightly u sing the hexagona l socket .
"' Remove the alignment pin and insert and t ight
en the remaining wheel bo lt s lightly like the
rest .
.. Turn the jack hand le count er-clockw ise to lower
the vehicle unti l the jack is fully released .
.. Use the wheel bo lt wrench to tighten all wheel
bolts firmly . Tighten them
in a crisscross pa t
tern,
from one bolt to the (approx imately) op
posite one, to keep the wheel centered .
"' Perform the steps required after chang ing the
wheel
c::> page 214, A~er changing a wheel.
_& WARNING
Do not use the hexagon al soc ket in the screw
driver handle to tighten the wheel bo lts. It is
not possible to tighten the bolts to the re
qu ired torque using the hexagonal socket -
risk of acc ident!
CD Note
When removing or installing the wheel, the
rim could h it the brake rotor and damage t he
rotor. Work carefully and have a second per
son to he lp you.
@ Tips
- When mounting tires with un idirectional
tread de sign
make sure the tread pattern is
pointed the right way
c::> page 218 . 1JJ,,
217

Fuses and bulbs
(D Tips
- The following table does not list fuse loca
tions that are not used.
- Some of the equipment listed in the follow
ing tables applies only to certain model ver
sions or certain optional equipment.
Cockpit fuse assignment
The fuse number is stamped into the plastic be
low or above each fuse.
No. Equipment
1 LED headlight (left)
2 LED headlight ( right)
5 LED headlight (left)
6 LED headlight (right)
7 Steering lock
8 Convenience access
9
Airbag control module, AIRBAG OFF indi-
cator light
12 Transmission control module
Air quality sensor for climate contro l sys-
tern, heated w indow washer nozzles,~
button, reverse light button<®>, oil level
13 sensor, climate control system, seat occu-
pant detection system, seat heating , but-
tons in the center console, automatic dim-
ming mirror
Engine control module, transmission con-
trol module, quattro control module,
14
brake lights, electromechanica l steering,
Gateway cont rol module, trailer hitch con-
trol module, ESC contro l module, light
switch, damping control module
Headlight range control module, instru-
ment illuminat ion, headl ights (left, right),
15 diagnostic connector, headlight range con-
trol module, crankcase housing heater, air
flow sensor, socket relay, DC/DC converter
16 Park ing system
17 Parking system rearview camera
18 TV tuner
19 E ngine starter control, DC/DC converter
220
No . Equipment
20
ESC contro l module, climate/heating con-
tro l, special functions interface
21 Selecto r mechanism power supply
22 Interior monitoring
© button, front interior lighting buttons,
23 diagnostic connector, light switch, light/
rain sensor, humidity sensor
25 Headlight power supply
26 Rear window wiper
27 Starter system
28 Infotainment
29
Supply for the park ing system rearv iew
camera and TV tuner
30 Infotainment
31 Infotainment
32 Instrument cluster
33 A utomat ic dimming rearview mirror
36
Cigarette lighter, cockpit/ luggage com-
partment socket
37 Cockpit/rear socket
38 Transmission control module
40 Trailer hitch control module
41 Trailer hitch control module
42 Trailer hitch control module
44 Rear window defogger
45
Electromechanical parking brake control
module
46 Trailer hitch control module
47 quattro control module
48 Aut omat ic lu ggage compartment lid con-
tro l module
so Fan
51
Electromechanical parking brake control
module
52 BCM
53 Fr ont seat heating
54 Panorama roof
55 Sun shade on the panorama roof
56 Adaptive dampers control module