
24 2 Ch ecking and filling
-If you drain the coolant, it must be
caught and safely stored in a p roper
conta iner clearly marked "poison".
(D Note
- Coolant pollutes the env ironment and
could cause an engine fire . Excess coo l-
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 240 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 radiator fan is driven by the engine via the
V-be lt . The viscous clutch regulates the speed
of the fan accord ing to t he temperature of the
coolant.
An auxiliary electric radiator fan* switches on
a nd off depending on coolant temperature
and other ve hicle operating conditions.
After you switch the engine off, the auxiliary
fan can cont inue running for up to 10 minutes
- even with the ignition off. It can even switch
on again later by itself¢&. , if
- the temperature of the engine coolant rises
due to the heat build-up from the engine in
the engine compartment, or
- the engine compartment heats up because
the veh icle is parked in intense sunlight.
_&. WARNING
- To reduce the r isk of personal injury nev
er to uch the radiator fa n. -
The a uxiliary electric fan is temperat ure
controlled and can switch on suddenly
even when the engine is not running.
- The auxiliary radiator fan switches on a u
tomatically when the engine coolant reaches a certai n temperature and will
continue to ru n until the coolant temper
ature drops.
Brake fluid
Checking brake fluid level
The brake fluid level can be checked with a
quick glance.
F ig. 2 00 Engine compart men t: cover on t he brake fluid
reservoir
Befo re you check anyth ing in the engine com
partment,
alway s read and he ed all WARN
INGS c::> ,&. in Working in the engine compart
ment on page 233.
.,. Read the brake fluid level from the b rake
fluid reservoir
c::> fig. 200, c::> page 235,
fig. 196.
The brake fl uid level m ust be be
tween the "MIN" and "MAX" markings.
T he bra ke fluid reservo ir is located at the rear
part ition o f the e ngine compartment on the
left s ide
c::> page 235.
The fluid level may drop slightly afte r some
t ime due to the a utomatic adjustment of the
brake pads. This is not cause for a larm .
If the brake fl uid level falls
considerably be
low the
"MIN" mar k, the brake war ning/ indi
cator light ( U.S. models:
1111 , Canadian
models :. will come on
c::> page 18 and
c::>page 29. Do not con tinue to operate the ve-
hicle . The comp lete brake system should be ..,.

thoroughly checked by an authorized Audi
dealer or qualified workshop and the cause
corrected .
If the brake fluid level is too low ,
the brake warning/indicator light will i llum i
nate. Con tact an au thori zed Aud i dealer
im ·
mediately .
Changing brake fluid
Have the brake fluid changed by an experi
enced technician .
Brake fluid absorbs moist ure from the a ir. If
the water con tent in the brake fluid is too
h igh, corrosion in the brake system may resul t
after a per iod of t ime . The bo iling po int of the
brake fluid w ill also decrease considerably and
decrease b raking performance .
There fore, the brake flu id must be changed
e very two years . Always use new brake fluid
which conforms to Fede ral Motor Vehicle
Standard "FMVSS 116 DOT 4 ".
The brake flu id reservoir can be difficult to
reac h, therefore , we recommend that you
h ave the brake flu id changed by your author
iz ed
Audi dealer . Your deale r has the co rrect
too ls, the right b rake fluid and the know-how
to do this fo r you.
_& WARNING ,~
- Brake fluid is po isonous. I t must be s to r
ed only in the closed orig inal container
o ut o f the reac h of c hildren!
- Brake fa ilure can resu lt from old o r inap
propriate b rake fluid. Observe these pre
cautions :
- Use o nly bra ke fluid t hat meets SAE
specification
J 1703 and confo rms to
Federal Motor Vehicle Sta ndard 116 .
Always check wi th you r auth orized Audi
deale r to make s ure you are using the
correct brake f luid . The co rrec t type of
brake fluid is a lso indicated on the
brake fluid reservoir .
- The brake f lui d m ust be new. Heavy use
of the b rakes can ca use a vapor lock if
the brake fl uid is left in the system too
long . This can ser io usly affect the effi-
Checkin g and fillin g 243
ciency of the brakes as well as your
safety. Th is co uld resu lt in an accident.
(D Note
B ra ke fluid will damage the pa int o f you r
vehicle .
@ For the sake of the environment
Because o f the p rob lem of proper disposal
of bra ke fluid as well as the spec ia l t oo ls
r equire d an d the necessary expe rtise, we
recommend that yo u have the brake f luid
changed by yo ur authorized Aud i dea ler.
Battery
General information
Under n o rmal ope ra ti ng cond itions , the b at
te ry in yo ur Audi does not need any ma inte
nance . With
high outside temperat ures or
l ong daily drives we recommend that you have
the e lectrolyte leve l checked by an authorized
Audi dealer or qualified workshop. The elec
troly te level should also be checked each t ime
the battery is charged
c:> page 245 .
Have the battery checked when yo u take you r
vehicle in for service. You are well advised to
replace a battery that is older than 5 years .
With certain types of airbag deployment, the battery is disconnected from the veh icle elec
trical system for safety reasons
c:> .&. in Re
pair, care and disposal of the airbags on
page 171 .
Hybrid drive* : you can find important informa
tion about the high voltage battery under
c:> page 97.
Di sconnecting the battery terminals
Some vehicle functions (power window reg u
lators, for example) are lost if t he battery te r
mina ls are disconnected. These f unctions have
to be relearned after the ba ttery termina ls are
con nected aga in . To prevent th is, the battery
shou ld only be d isconnected from the veh icle
electrica l system when abso lutely necessary
fo r repa irs. ..,_
•
•

274 What do I do no w?
Special ca re is requ ired if you are repairin g
t he t ire o n a steep incline.
@ Tips
- Do not operate the compressor for more
than 12 minutes continuously, otherwise i t can overheat. Once the compressor has
cooled, you can continue to use it.
- If sealant has spi lled out, let it dry and
then you can remove it by pee ling it away
like a fo il.
- Remember to obtain a new bottle of
sealant from your authorized Audi dealer
after repairing a tire. After this, the func
tionality of the tire repair set is restored.
- Obey all laws.
Changing a wheel
Before changing a wheel
Observe the following precautions for your
own and your passenger's safety when chang
ing a wheel .
.,. After you experience a tire fa ilure, pull the
car well away from moving traffic and try to
reach
le ve l ground before yo u stop ¢&_ .
.,. All p assengers sho uld
le ave the c ar and
move to a safe location (for instance, behind
the guardrai l)¢
,A .
.,. Engage the parking brake to prevent your
vehicle from ro lling un intentionally¢ &_.
.,. Move
selecto r le ver to pos ition P ¢ ,A .
.,. If you are tow ing a trailer: unhitch the trail
er from your veh icle.
.,. Block the diagonally opposite wheel with
the fo ld ing chocks or other objects.
.,. Take the
jack * and the inflatab le spare tir e*
out o f the luggage compartmen t
¢page 269.
A WARNING
You or your passengers cou ld be injured
while changing a whee l if yo u do not fol
low these safety precautions:
-
- If you have a flat tire, move a safe d is
tance off the road. Turn off the engine,
turn the emergency flashers on and use
other warning devices to a lert other mo
torists.
- 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
suddenly a nd possib ly slipping off the
jack*, always fully set the pa rking brake
a nd b lock the wheel d iagonally opposite
t he wheel be ing c hanged w it h t he fold
ing chocks or other objec ts. When one
front wheel is lifted off the ground, plac
ing the Automatic Transmission in P
(Park) will
not prevent the vehicle from
mov ing.
- Before you change a wheel, be sure t he
ground is level and firm. If necessary,
use a sturdy board under the jack*.
- Always store the vehicle tool kit, the
jack * and the replaced tire in the luggage
compartment¢
page 145.
Changing a wheel
When you change a wheel, follow these
quence described below step-by-step and in
exactly that order.
1. Remove the decorative wheel cover* . For
more details see also ¢
page 2 75, Deco
rative wheel covers
or¢ page 2 75,
Wheels with wheel bolt caps .
2. Loosen the wheel bolts ¢ page 276 .
3. Locate the prope r mounting point fo r the
jack* and align the jack * below that point
¢ page 276.
4 .
Lift the c ar with t he jack *¢ page 2 76 .
5 . Remove the
wheel with the flat tir e and
then insta ll the
inflatable spare tire*
¢ page 277 .
6. Tighten all whee l bolts lightly.
7.
Lower the vehicle with the jack*.
8. Use the wheel bolt wrench and
firmly
t ighten all wheel bolts¢ page 276.
9. Replace the decorative
whe el cover *.

278 What do I do no w?
• Use the hexagonal socket in the screwdriver
hand le to screw in and tighten all wheel
bolts
slightly .
• Remove the alignment pin and insert and
t ighten the remaining wheel bolt slightly
Like the rest .
• Turn the jack handle* counter-clockwise to
lower the vehicle unt il the jack* is fully re
leased .
• Use the whee l bolt wrench to t ighten al l
wheel bolts firmly¢
page 2 76. Tighten
them
crosswise, from one bolt to the (ap
proximate ly) opposite one, to keep the
whee l centered.
@ Note
When removing or installing the wheel,
the rim could hit the brake rotor and dam
age the rotor. Work carefully and have a
second person help you.
@ Tips
Never use the hexagonal socket in the han
dle of the screwdriver to loosen or tighten
the wheel bolts .
- Pull the reversible b lade from the screw
driver before you use the hexagonal
socket in the handle to turn the whee l
bo lts.
- When mounting tires with
un id irectional
t re ad desi gn
make sure the tread pat
tern is pointed the right way
~ page 278.
- The wheel bolts should be clean and easy
to turn . Check for d irt and corrosion on
the mat ing surfaces of both the whee l
and the hub. Remove all dirt from these
s ur faces before remo unt ing the wheel.
Tires with unidirectional tread design
Tires with unidirectional tread design must be
mounted with their tread pattern pointed in the right direction .
Using a sp are t ire w ith a tre ad pattern
intended for use in a specific direction
When using a spare t ire with a tread patter n
intended for use in a spec ific d irection , please
note the following :
- The direct ion of rotation is marked by an ar
row on the side of the ti re .
- If the spare tire has to be installed in the in
correct direct ion, use the spare tire only
temporarily s ince the tire will not be able to
achieve its optimum performance cha racter
isti cs wit h regard to aquap lan ing, no ise and
wear .
- We recommend that you pay part icu la r at
t ention to th is fact d uring wet wea ther and
t ha t you adjust you r speed to match road
conditions .
- Replace the fl at tir e with a new one and
have it insta lled on you r vehicle as soon as
possible to restore the handling advantages
of a u nidirectional tire .
Notes on wheel changing
Please read the information¢ page 259, New
tires and replacing tires and wheels
if you a re
going to use a spare tire which is different
from the ti res on your vehicle .
After you change a tire:
- Check the tire pre ssure on the spare imme
diately after install ation.
- Have th e whe el bolt tight ening torqu e
c hecked with a torque wrench as soon a s
pos sible by your author ized Audi de aler or
a q ualified wo rkshop.
- With steel and alloy wheel r im s, the wheel
bolt s are cor re ctl y tightened at a torque of
105 ft lb (140 Nm).
- If you noti ce th at the wheel bolts are cor
roded and diffi cult to turn while changing
a ti re , they should be repl aced before you
check the t ightening torque. .,..

I
I
I
-No. Consumer
6
Headlights range control sys-
tern/Co rnering light
7 Headligh t (corner ing l ight)
Control modules (electrome-
8
chanical parking brake, shock
absorber, quattro Sport, trailer
hitch), DCDC converter
9 Adaptive cruise contro
l or high
voltage battery (hybrid drive)
12 Headlight range contro
l, park
ing system
13 Airbag
14 Rear wiper
15 Auxiliary fuse (ins
trument pan
el)
Auxilia ry fuse terminal 15 (en-
16 gine area)
Fuse panel
@ (brown )
1 E lectric exhaust door
2
3
4
5
6
7 Brake light sensor or brake ped
al movement sensor (hybrid
drive)
Fuel pump
Brake booster (hybrid drive)
Left seat heating with/without
seat venti
lation
ESC
Horn
Left fron t door (window regula -
8 tor, central locking, mirror,
sw itch, lighting)
-9 Wiper motor
10 ESC
Left rear door (window regula
l l tor, sw itch, light ing)
12 Rain and light sensor
Fuse panel © (red)
3 Lumbar support
4 Dynam ic ste ering
5 Climatized cupholder
-Amps
5/ 7,5
7,5
5
5/7,5
5
5
5
15
10
40
5/10
5
25
25
1 5/30
5
15
30
30
2 5
30
5
10
35 10
-
Fu se s and bulb s 281
No. Consumer
6 W
indshield washer system,
headlamp washer system 35
7
Vehicle electrical system control
module 1 20
8
Vehicle electrical system control
module 1 30
9 Panorama su
nroof
10 Vehicle elec
trical system control
30
mod ule 1
11 Sun shade (panorama sunroof)
20
12 Anti-theft alarm warning sys-
tern 5
Right cockpit fuse assignment
Fi g. 22 5 Right cockp it : fuse panel wit h plast ic cl ip
No. Consumer Amps
Fuse panel @ (black )
5 Steering column switch module 5
7 Te
rm inal 15 d iagnost ic connec-
tor
5
8 Gateway (Databus diagnostic in-5 terface)
-..
9 Supp
lementary heater 5
Fuse panel @ (brown)
1 CD /D V D p layer 5

282 Fuses and bulbs
I
-
No. Consumer
2 Wi-Fi
3 MMI/Radio
4 Instrument cluster
5 Gateway (instrument cluster
control
module)
6 Ignition lock
7 Light switch
8 Climate control system blower
9 Steering column lock
10 Climate control system
11 Terminal 30 diagnostic connec-
tor
12 Steering column switch module
Right luggage compartment fuse
assignment
Amps
5
5/20
5
5
5 5
40
5
10
10
5
Fig. 226 Right luggage compartment: fuse panel with
plastic cl ip
No. Consumer Amps
Fuse panel
@ (black)
1 Luggage compartment lid con-
30
trol module
2 Trailer control module 15
3 Trailer control module 20
4 Trailer control module
20
-No. Consumer Amps
5 Electromechanical
parking
5
brake
•
6 Electronic damping control 15
7 Electromechanical parking
30
brake
8 Rear exterior lighting 30
9 quattro Sport
35
10 Rear exterior lighting 30
11 Vehicle electrical system control
20
module
12 Terminal 30
5
Fuse panel c (brown)
1 Luggage compartment lid con-
30
trol module
2 12-volt socket, cigarette lighter
DCDC converter path 1 or high
3 voltage battery blower (hybrid 40
drive)
4 DCDC
converter path 2, DSP
30
amplifier, radio
7 Electromechanical
parking
30
brake
Right front door (window regu-
9 later, central locking, mirror, 30
switch, lighting)
11 Rear
right door (window regula-
30
tor, switch, lighting)
12 Cell phone prep 5
Fuse panel© (black)
1 Right front seat heating
15
2 Automatic dimming rearview
5
mirror
3 Instrument panel terminal 30
4 MMI 7,5
Rearview camera
Rear window heater
8 Rear Seat Entertainment
12 High voltage battery (hybrid
drive)

@ Tips
-The discharged battery must be properly
connected to the vehicle's electrical sys
tem. When jump start ing or charging the
battery, never connect the negative
ground cable to the battery negative
post because the battery manager sys
tem must be able to detect the battery's
state of cha rge . A lways connect the neg
ative g round cab le to the negative
gro und post o f the battery manage r con
trol uni t.
Use of jumper cables
Make sure to connect the jumper cobl e
clomps in exactly the order describ ed b elow!
Fig. 227 Engine co mpartmen t: Con ne ctors fo r jum per
c ables a nd char ger
Fi g. 22 8 Jump s tart in g w ith t he ba ttery of a not her ve
hi cle :@ booster battery, @ disc harged vehicle bat tery
The procedure described below for connecting
jumper cables is intended to provide a jump
start for your veh icle .
Hybr id drive*: read the important information
concerning a dead high voltage bat te ry under
c::;, page 105 .
Emergenc y situ ation s 285
Vehicle with discharged b attery:
.,. Turn off lights and accessor ies, move lever
o f automatic transmiss ion to N (Neutra l) or
P (Pa rk) and set parking brake.
Connect POSITIVE (+) to POSITIVE (+ )
(r ed)
.,. Remove the cover(!) by pressing on the ar
row
¢ fig. 227.
.,. Open the cover @on th e positive terminal.
1. Connect one end of the red pos it ive cable
on the
jump start bolt c::;, fig. 228 (D
(Bolts under cover= "po sit ive") of the ve
hicle to be started @.
2. Connect the othe r end to the pos itive ter-
mi na l@ of the booster battery @.
Connect NEGATIVE (-) to NEGATIVE (- )
(black )
3. Connect one end of the black negative ca
ble to the negative termi na l@ of the
booster battery @.
4 . Co nnect the othe r end o f the black nega
tive cab le to the
jump sta rt b olt © (Bolts
with hex head = "negative") of the vehicle
to be started @.
Starting the engine
.,. Start the engine of the veh icle w ith the
booster ba tte ry @ . Ru n the engine at a
moderate speed .
.,. Start eng ine wit h discha rged vehicle battery
@ in the usual manner .
.,. If the eng ine fails to start: do not keep the
starter crank ing for longer than 10 seconds.
Wait for about 30 seconds and then try
aga in .
.,. With engine running, remove jumper cab les
from both vehicles in the e xact
reverse o r
de r .
.,. Close the cover @on the pos itive termina l
and re -install the cover
(D c::;, fig . 22 7.
T he battery is vented to the outside to preven t
gases from en ter ing the veh icle in ter io r. Ma ke
su re that the jumper clamps are well connect
ed with their
metal parts in full contact with
the battery te rm inals.

300 Index
A
Accessories 297
AC (climate control) . . . . . . . . . . . . . . . . . . 80
Adaptive cruise control . . . . . . . . . . . . . . . 107
Cleaning sensors ......... .. .. .... . 219
Indicator lamp . . . . . . . . . . . . . . . . . . . . 109
Messages .. ..... ........... ... .. . 114
Request for dr iver intervention . . . . . . . 11 2
Setting the d istance ........ ... .. ... 111
Setting the d riving p rog ram .. .. .... . 112
Adapt ive dampers . . . . . . . . . . . . . . . . . . . 120
Adaptive light . .. . ...... ... ... ..... .. 51
Defective . . . . . . . . . . . . . . . . . . . . . . . . . 34
Adding
E . l ngine coo ant ........... .. .. .... . 241
E ng ine oi l ............... .. .. .. .. . 238
W indshie ld washer fluid ... .. .. .... . 247
Addit ional accesso ries ... ... .. .. .. .. . 297
Additives
Eng ine oil .... ........... .. .. .... .
238
Adjusting
A ir dist ribution (climate control) . .... .
80
Front seats .... .. ..... ... .. .. .... .. 6 1
Steer ing column manually . .. .. .... .. 83
Temperature (climate control) .. .. .. . . 80
A irbag system . . . . . . . . . . . . . . . . . 157, 174
Advanced Airbag System ... .. .. .... . 161
Advanced Airbag System components . 164
Care . .. .. ............... .. .. .... . 170
Chi ldren . ............... .... .... . 179
Ch'ld t .
1 res ra 1nts ........... .. .. .. .. . 180
Components (front airbags) .. .. .. .. . 164
Danger of fitting a child safety seat on
the front passenger seat . .. .. .. .... .
158
Disposa l ..... ........... .. .. .. .. . 170
Fr ont airbags . . . . . . . . . . . . . . . . 16 1, 16 2
How do the front airbags work? ..... . 166
How many airbags does my vehicle
have? ..... ... .. ..... ... .. .. .... .
164
How the Advanced Airbag System com-
ponents work together ...... .. .... .
165
Important things to know .. .. .. .. .. . 157
Ind icator light ..... ...... .. .. .. .. . 168
Monitoring . ................ ... ... 168
PASSENG ER A IR BAG OFF light .. .. .. . 168
Repa irs .. .. .. . .......... .. .. .. .. . 170
Safety ins tructions ........ .. .. .. .. . 170
S ide a irbags ..... ... .. ..... .... . .. 172
Side curtain airbags .... ..... ... .. .. 175
Warning/ind icator lights ..... ... .. .. . 15
w. ht .
e1g -sensing mat . . . . . . . . . . . . . . . 179
When must the system be inspected? . 168
Air t ransport . ..... .. ... ..... ... .. .. 106
All-wheel drive .. .. ................ . 202
Selective wheel torque co ntrol . . . . . . . 19 7
Winter tires ... .. ............. .... 2 63
Al loy wheels .... .. ... .......... .... 222
Alternator
Malfunction . . . . . . . . . . . . . . . . . . . . . . .
28
Anti-free ze
refer to E ng ine coolan t sys tem ... .. .. 2 40
Anti- lock brake system .............. . 197
Warning/ind icator lights .. ... ..... .. . 17
Anti-slip reg ulation . .. .. ..... .... . .. 197
An ti-theft a la rm warn ing system . .. .. .. . 38
El ectronic immob il iz er .......... .... . 38
Approach/depa rture angle ........... . 209
Ashtray .... .... .. .. ... .. ..... ... .. . 75
Aste risk
What does it mean when something is
ma rked wit h an as ter isk? ..... ... .. .. .. 6
Audi braking guard
refer to Braking gua rd ............. . 113
Audi drive select
Indicator lig ht . .. ............. .. ..
201
also refer to Drive select .. ...... .... 120
Audi parking system plus with rearview
camera . ... .... .. .. ... .. ..... ... ..
129
Adjusting the d isplay ............. .. 133
Adjusting the war ning tones ..... .... 133
Cleaning sensors/camera ... .... .. .. 219
Rearv iew camera -parking mode 1 ... . 132
Rea rv iew camera -parking mode 2 .. .. 132
Safety p recautio ns ............. .... 129
Swi tch ing on a nd off ........... .... 131
Tra ile r hi tch . .. .. ... .......... .... 134
Audi Serv ice Repair Manuals a nd Litera -
ture . .. ... ... .. .. .. ... ... ... .. .. ..
295
Auto-Check Contro l . . . . . . . . . . . . . . . . . . 27
A ut o locking . . . . . . . . . . . . . . . . . . . . . . . . 38
Automat ic be lt retractor . .. ... ..... .. 152
Automatic car wash
refer to Washing ... ... ..... ... .. .. 217
A utomat ic d riving light control ...... .. . 49