
snow c hains are suitably cove red . Check
the position of the snow chains after
driving a few yards and correct if neces
sary. Follow the instructions from the
snow cha in manufacturer when doing so.
Where snow cha ins are mandatory oncer
tain roads, this normally also applies to
veh icles with all-wheel dr ive.
Wheel bolts
Wheel bolts must always be tightened to the
correct torque.
The design of whee l bolts is matched to the
factory insta lled r ims . If different rims are fit
ted, the correct wheel bo lts with the right
length and correctly shaped bolt heads must
be used. This ensures t hat wheels are fitted
securely and that the brake system functions
correctly .
In certain circumstances, you may not use
wheel bo lts from a different vehicle -even if it
i s the same model
¢ page 245.
A WARNING
Imprope rly tig htened or maintained wh eel
bolts can become loose ca using loss of
con trol, a collision and serious person al in
jury.
- Always keep the w heel bolts and the
threads in the wheel hubs clea n so the
wheel bolts can tu rn easily and be p rop
er ly tightened .
- Never grease or oil the wheel bo lts and
the threads in the wheel hubs. They can become loose w hile d riving if greased or
o iled, even if tig htened to the specif ied
torque.
- Only use whee l bolts that belong to the
rim being installed.
- Never use different whee ls bolts on your
vehicle.
- Always maintai n the co rrect tig htening
torq ue fo r the wheel bo lts to reduce the
risk of a wheel loss. If the tightening tor-
Tire s an d wheel s 213
que of t he whee l bolts is too low, they
can loosen and come out when the vehi
cle is mov ing. If the tig htening torq ue is
too high, the wheel bolts and threads
can be damaged and the whee l can be
come loose.
(D Note
The specified torque for the whee l bolts is
90 ft lb (120 Nm) with a tolerance of± 7,4
ft lb(± 10 Nm). Torq ue whee l bolts diago
nally. After changing a whee l, the tor que
must be checked as soon as possible with a
torq ue w rench -prefe rably by an au thor
iz ed A udi de aler or qu alified workshop .
Low aspect ratio tires
Your Audi is factory -eq uipped w ith low aspect
r atio tires . These tires have been tho roughly
tested and been se lected specifically for your
model for their superb performance, road fee l
and handli ng under a var iety of driving condi
tions . Ask your authorized Audi dealer for
more d etails.
The low aspect ratio of these t ires is ind icated
by a numeral of
55 or less in the tire's s ize
designation . The numeral represents the ratio
of the t ire's sidewa ll height in relation to its
t read width exp ressed in pe rce ntage. Conven
t iona l tires have a he ight/w idth rat io of 60 or
more.
The performanc e of low-a spect-ratio tire s is
particularly sensitive to impr oper inflation
pre ssure .
It is therefore important that low
a spect ratio tire s are inflated to the specified
pres sure and that the inflation pressure is
regularly checked and maintained. Tire pre s
sures should be checked at least once a month and always befo re a long trip
¢ page 202, Checking tire pressure.
What you can do to avoid tire and rim
damage
Low aspect ratio tires can be damaged mo re
easily by impact w it h potholes, curbs, gul lies ..,.
•
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Fuse Location, Instrument Panel left
0
Fig. 166 Fu se ca rrier behin d th e in strum en t pane l end
fa ce, cover re move d
Some of the equipmen t items lis ted a re op
tional or only available on certain model con
f igurations.
N ote th at the foll ow ing table is ac curate at
the t ime of go in g to press and is subje ct to
c hang e. In t he event of d iscr epan cies, the la
b el on the in side of th e cove r alw ay s take s
precedence .
The power sea ts are pro te ct ed by circu it
break ers,
which automatically reset after a
few seconds after the overload has been rem
ed ied .
No. Equipment
1
2
3
Engine relay, fuel tank contro l
unit, A irbag Off light , light
switch (sw itch illumi nation), di -
agnosti c connector
ABS, ASR, ESC, brake light switch
AFS headlight (le ft)
Amps
10
5
5
Fu se s and bulb s 229
No.
4
5
Equipment
Oil level sensor (extended main-
tenance interval) (WIV), tire
pressure monitoring system,
switch for Electronic Stabiliza-
tion Control (ESC), AFS head-lights (control unit), A/C system
(pressure sensor), backup light
switch
Automatic headlight range con trol, AFS headlight (right) /
manual headlight range con
trol, halogen headlights
Control unit for CAN data trans-
6 fer (gateway), electromechani cal steering, automatic trans
mission shift gate
7 Acoust
ic Park Assist, automatic
dipping interior rear view mir-
ror, garage door opener, heata
ble windshield washer nozzles,
washer pump, w ind deflector
re lay (Roadster)
--r-HaldeX clutch/Haldex clutch
(TTS)
8
Amps
5
5/10
5
5
5/10
9 Control un it Audi magnetic ride 5
----10 Airbag control unit 5
Mass airflow sensor, crankcase
11 heat ing
Door control unit (central lock-
12 ing driver/passenger)
13 Diagnostic conne ctor
Rain sensor, automatic trans-
14 mission shift gate
15 Roof light (inter ior lighting)
16 A/C system (control unit)
17 Tire pressure monitoring sys
tem (control un it)
--~-18 Not used
19 Not used 5/10
10
10
5
5
10
5
I
I
I
20 -------21 Fuel injectors (gasoline engine) 10
22 Wind deflecto r (Roadster) 30
23 Horn 20
IIJ>,

248 Index
Connecting ...... ..... ... .. .. .... . 190
Disconnecting . ....... ... .. .. .... . 190
Important warn ings . .... ... .. .... . 192
Locat ion 192
Low . .. .. .... ........... ........ . 156
Replacing the battery ......... .. ... 191
State of charge ..... .... .. .. .. .. .. . 156
W inte r operation .......... ... .. .. . 190
Working on the battery .. ...... .. .. . 192
Battery voltage ................ .... .. 19
Before driving . . . . . . . . . . . . . . . . . . . . . . . 90
Blended gasoline ........... ... .. .. . 176
Body cavity sealing . . . . . . . . . . . . . . . . . . 170
Boost . .. .. .. .. . .......... .. .. .... .. 28
Booster seats .............. ... .. .. . 138
Boost pressure indicator . ... .. .... .. . . 28
Brake fluid
Changing the brake flu id . .. .. .. .. .. .
190
Chec king the bra ke fluid level . .. .... . 189
What is the correct brake fl uid leve l? .. 189
What should I do if the brake fluid warn-
ing light comes on? .. ... .. .. ... ... .
189
Brake fl uid reservo ir ........ .. .. .... . 189
Brake system .............. .... .... . 189
Anti -lock brake system ........ .. .... 18
Brake ass ist system . .. .. .. .. .. .. .. . 150
Brake fl uid . ... .. ..... ... .. .. .. .. . 189
Brake flu id spec ifica tions for refill and re-
p la cemen t ... ......... .. .. .. .. .. .
190
Brake light defect ive . ... .. .. .... .. . . 20
Brake pads .. .. .. ..... ... .. .. .... . 159
General information . ... .. .. ... ... . 153
How does the moisture or road sa lt affect
the brakes? .............. .. .. .... .
153
Malfunc tio n . . . . . . . . . . . . . . . . . . . . . . . 14
Warn ing/ indicator l ights ....... .. .... 14
Worn brake pads symbol . . . . . . . . . . . . . 18
Break- in period ............ .. .. .. .. . 159
Brake pads ... ........... .. .. .... . 159
Tires
Bulbs
C
159
23 1
Califo rni a Proposit ion 65 Warning .. .. . 18 1
Battery specif ic .. ..... ... .. .. .... . 193
Capac it ies . .. ..... ........... ... .. . 240
Car care . ... .... .. ... .. .. ... .... . .. 164
Interior . . . . . . . . . . . . . . . . . . . . . . . . . . 170
Plastic and vinyl . .... .. ..... ... .. .. 168
Care of ex ter ior .. .. ............. .. .. 164
Cargo area
refer to Luggage compartment ....... . 96
Cata lytic co nverter ... ... ..... ... .. .. 160
CD cha nger . .... .. ............. .... . 64
Certification . . . . . . . . . . . . . . . . . . . . . . . 246
Chang ing a flat t ire ... ... ..... ... .. .. 224
Chang ing engine oil ................ . 186
Chassis
Undercoating .. .. ............. .. ..
170
also refer to Audi magnet ic r ide .. .. .. . 78
Checking
Battery ac id leve l ... ... ..... ... .. ..
193
Engine coolant level . . . . . . . . . . . . . . . . 187
Checking t ire press ure ........... .. .. 2 02
Child restraint
Danger of using child rest raints in the
front seat . ...... ................ .
110
Child restraints
Where can I get additional informat ion
about child restraints and the ir use? ..
149
Child restraint system anchors . ... .. .. 143
Child saf ety . .. .. .. .. .. ...... ... .. .. 130
Co nvertib le loc king retractor ... .. .... 140
G ui dance fixtures for lower anc ho rages 1 4 5
Important sa fe ty instru ctions for using
child safety seats ... .... .... ... .. ..
133
Important things to know whe n driving
with children .... ............... ..
130
Installing a c hild restra int using the
LATCH system . . . . . . . . . . . . . . . . . . . . .
146
Mounting and releasing the anchorage
hook ...... ... .. .. ... ....... .... .
146
Tether anchors . .. ............. .... 14 7
Tether straps .. .. ............. .... 14 7
Child safety seat ..... ... ..... ... .. .. 135
Co nvertib le locking retractor ......... 140
Installing ... .. .. ... .. .. ... ..... .. 140
U nused safety be lts on the rear seat 135
Child safety seats
Booster seats .... ............... ..
138
Co nvertib le child seats ............ . 136
How do I properly i nstall a child safety
. h" l ? 133 seat in my ve 1c e .............. .. . .

Towing Front eyelet ................ ... ... 235
Rear eyelet ................. ... .. . 236
Tow truck procedures ...... .. .. .. .. . 234
Towing loop front .... .. .. ................ .... 235
TPMS Tire pressure monitoring system .. .. . 215
Trailer towing ............. .... .. .. . 163
Transmission Manual transmission ......... ... .. .. 80
S tronic transmission ......... ... .. .. 80
Transport Canada .......... .. .. .. .. .. 98
Tread Wear Indicator (TWI) .. .. .. .. .. . 206
Trip computer . . . . . . . . . . . . . . . . . . . . . . . 23
Single-trip memory .......... ... .. .. 23
T otal-trip memory . . . . . . . . . . . . . . . . . . 23
Trip odometer ............. .... .. .. .. 12
What does it mean when dEF appears in
the trip odometer display? ....... .. .. 12
Trunk lid . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 7
T urn signals .. .. ........... .. .. .. .... 44
Warning/indicator lights ..... .. .. .. .. 21
u
Undercoating
170
Unfasten ing safety belts .... .. .. .. .. . 106
Unidirectional tires ......... .. .. .. .. . 196
Uniform tire quality grading ....... .. . 210
Universal Radio- Frequency Remote Con-
trol (Homelink ®) . . . . . . . . . . . . . . . . . . . . 87
Unlocking Power locking switch ...... .. .. .. .. .. 36
Rear lid/trunk lid ............ .. .... . 37
Remote control key ....... .. .. .. .. .. 35
Using the key ............ .. .. .. .... 36
V
Vanity mirror . .. .............. ... ... . 46
Vehicle-care products .......... ... .. . 164
Vehicle electrical system .... .. .. .. .. .. 16
Vehicle Identification Number (VIN) . .. . 238
Vehicle jack . ... .............. ... ... 225
Vehicle literature . . . . . . . . . . . . . . . . . . . . . 5
Vehicle tool kit ............ .. .. .. .. . 220
Index 257
Ventilation . . . . . . . . . . . . . . . . . . . . . . . . . 66
w
Warning/indicator lights . . . . . . . . . . 10, 12
Airbag system ... .. ................ 15
Anti-lock brake system (ABS) . . . . . . . . . 18
Brake system . . . . . . . . . . . . . . . . . . . . . . 14
Cruise control .. .. ................. . 21
Electronic power control . . . . . . . . . . . . . 19
Electronic Stabilization Control (ESC) .. . 17
Generator . ....... ................. 16
Malfunction Indicator Lamp (MIL) .. .. . 19
Parking brake .. .... ... .. ..... ..... . 14
Safety be lt .. .. .. .. . .............. . 16
Safety systems . .. .... ........... .. . 15
Turn signals . . . . . . . . . . . . . . . . . . . . . . . 21
Warning/Indicator lights Rear spoiler ...... ................. 21
Warning lights Red symbols in the center display . .. .. . 13
Yellow symbols in the center display .. . 13
Warranty coverages . ................ 243
Washer reservoir .. .... ........... .. 194
Washing ... .. .. .. ................. 164
Automatic car wash . ... ..... ... .. .. 165
by hand ......... .. ............... 165
General information ..... .. .... .... 164
Matte finish paint .... ........... .. 166
with a power washer ........... .... 166
Waxing .... .. .. .. .. . .............. 167
Wear indicator ...... ............... 206
Weights .......... .. ..... .......... 238
What happens if you wear your safety belt
too loose? ...... ...... ............. 105
What happens to unbelted occupants? . . 102
What impairs driving safety? .. .... .... . 91
What should I do after changing a
wheel? ..... .. .. .. ... ............ .. 203
What should I do after replacing wheels? 203
Wheel bolts Torque ...... .. .... .......... ..... 213
Wheels .... .. .. .. ................. 196
Cast alloy . .. .. .. ................. 169
Checking tire pressure ......... .... . 202
Cold tire inflation pressure ......... . 200
General notes . . . . . . . . . . . . . . . . . . . . . 196
•
•