198 Tire s and wheel s
snow cha ins a re suitab ly covered. Check
the position of the snow chains after driving a few yards and correct if neces
sary. Follow the instr uctions from the
snow cha in manufacturer when doing so.
{O) Tips
Where snow cha ins are mandatory oncer
tain roads, this norma lly also applies to
veh icles with all-wheel dr ive.
Wheel bolts
Wheel bolts must always be tightened to the
correc t torque .
The design of whee l bolts is matched to the
factory installed r ims . If different rims are fit
ted, the correct wheel bolt s with the r ight
length and correctly shaped bol t heads mus t
be used . This ensures that wheel s are fitted
securely and that the brake system functions
correctly .
In certain circumstances, you may not use
wheel bolts from a d iffe rent vehicle -even if it
i s the same model
Q page 228.
A WARNING
Imprope rly tig htened o r maintained whee l
bolts can be come loose ca using loss of
cont ro l, a co llision and serious person al in
jury .
- Always keep the w heel bol ts and the
t h reads in t he wheel hubs clean so the
wheel bolts can t urn easily and be p rop
er ly t ightened .
- N ever grease or oil the wheel bo lt s an d
the threads in the wheel h ubs. They can
become loose w hile d riving if greased or
oi led, even if tightened to the specif ied
torque.
- Only use whee l bolts that be long to the
rim being installed.
- Never use different whee ls bolts on your
vehicle .
- Always mai ntai n the co rrect tighte ning
torq ue for the wheel bolts to reduce the
risk of a wheel loss. If the tightening tor- que of the whee
l bolts is too low, they
can loosen and come out when the vehi
cle is mov ing. If the tig hte ning torq ue is
too high, the w heel bolts a nd threads
can be damaged and the whee l can be
come loose.
(D Note
The specified torque for t he whee l bolts is
90 ft lb (120 Nm) with a tolerance of± 7,4
ft lb(± 10 Nm). Torque whee l bolts diago
nally . After changing a whee l, the to rq ue
must be checked as soon as possible with a
torque w rench - prefe rably by an author
iz ed A udi dealer or quali fied workshop .
Low aspect ratio tires
Your Audi is factory-eq uipped w ith low aspect
ratio tires. These tires have b een tho ro ughly
tested and been se lected specifically for your
model for their supe rb performance, road fee l
and hand ling under a variety of driving condi
t ions . Ask your author ized Audi dealer for
more de tails .
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 numera l rep resents the ratio
of the tire 's s idewa ll height in relation to its
t read width exp ressed in percentage. Conven
tiona l tire s have a he igh t/w idth rat io of 60 or
more.
The p erformance of low-a spect-ratio tire s is
particularly sensitiv e to improper inflation
pre ssure. It i s ther efore important that low
aspect ratio tires are inflated to the specified
pre ssure and that the inflation pre ssure i s
regularly checked and maintained. Tire pre s
sures should be checked at least once a month and always before a long trip
Q page 187, Checking tire pressure.
What you can do to avo id tire and rim
damage
Low aspect ratio tires can be damaged mo re
easily by impact w ith po tholes, curbs, gul lies ..,.
230 Index
A
A/C operation . . . . . . . . . . . . . . . . . . . . . . . 71
Accessories . . . . . . . . . . . . . . . . . . . . . . . . 228
Acoustic park assist ........ .. .. .. .. . . 80
Adaptive light . . . . . . . . . . . . . . . . . . . 21, 49
Adding Eng ine coolant .............. ... .. .
Engine oil .. ..... ........... ... .. .
Windshield washer fluid ... .. .. .... .
Additional accessories
Addit ives
Engine oil . ...... ......... ... .... .
Adjustab le steer ing column ...... .. ... .
Adjusting front seats ....... .. .. .. .. . . 173
170
180
228
170 73
60
Adj usting steering column ... .... .... .. 73
Adjusting the seats ............... ... . 61
Advanced Airbag System Children 131
Components ............. .. .. .... . 115
Front airbags . ............. .. .... . 113
H ow the components work together . . 117
Monitoring .... ... ... .... .. .. .. .. . 119
Weight -se nsing mat ...... .. .. .. .. . 131
Airbag system . . . . . . . . . . . . . . . . . 109, 128
Care . .. .. .. ............... .. .... . 122
Ch ild restra ints .............. ... .. . 132
Components (front airbags) .. .. .. .. . 115
Danger of fitting a child safety seat on
the front passenger seat . . . . . . . . . . . . 110
Disposal ................ .. .. .... . 122
Fr ont airbags ..................... 113
How do the front airbags work? .. ... . 118
How many airbags does my vehicle
have? ... .. ............. .. .. .. ... 115
Important safety instructions on the knee airbag system ..... .. .. .. .. .. . 126
Important things to know ...... .. .. . 109
Indicator l ight .... ... .... .. .. .. .. . 119
Knee airbags ............. .. .. .. .. . 124
Monitoring ... ............. .. .... . 119
PASSENGER AIR BAG OFF light .. ..... 120
Repairs .... ................ ..... . 122
Side airbags . . . . . . . . . . . . . . . . . . . . . . 126
Warning/indicator lights ............. 15
When must the system be inspected? 119
A lcantara
C leaning ... .. .............. ..... . 158 All-wheel drive
.... ............. .... 147
Winter tires ..... ................ . 196
Alternator .. .... .. ............. .... . 16
Anti-free ze
refer to Eng ine cooling system . .. .. .. 172
Anti -lock brake system . . . . . . . . . . . . . . . 142
Warning/indicator lights ............. 18
Anti-s lip regulation ............. .... 142
Anti-theft systems Anti -theft alarm system ............. 38
Electronic immobilizer .......... .. .. . 33
Ashtray ... ..... .. .. .............. .. 64
Asterisk What does it mean when something is
marked with an asterisk? . . . . . . . . . . . . . . 6
Audi magnet ic r ide . . . . . . . . . . . . . . . 21, 80
Description . . . . . . . . . . . . . . . . . . . . . . . . 80
Indicator light . .. .. ........... .. .. . 21
Audi Service Repair Manuals and Li tera-
ture 226
Automatic be lt retractor ............ . 104
Automat ic convert ible top
closing
. .. .. .. .. ............. .. .. . 43
opening .. .. .. .. ................ .. 43
Automat ic transmission . . . . . . . . . . . . . . . 82
Driving Notes . . . . . . . . . . . . . . . . . . . . . . 84
Emergency program ........... .. .. . 87
Emergency release ............. .. .. . 87
Ignit ion key safety lock ........... .. . 74
Kick-down ..... .. ................ .. 86
Launch Control Program ............. 86
Se lector lever lock . . . . . . . . . . . . . . . . . . 83
Se lector lever positions ......... .. .. . 82
Tiptronic .. .... .. ............. .... . 85
T iptronic controls on the steering wheel 86
Auto Safety Hotline ................ .. 99
Average fuel mileage ............ .... . 23
Average speed . . . . . . . . . . . . . . . . . . . . . . . 23
Avoid damaging the vehicle ........ ... 151
B
Battery ...................... 175,178
Charg ing .. .... .. ............. .... 179
Checking battery acid level .......... 178
Connecting . ..... ................ . 175
Disconnecting 175
Important warnings ... ... .. .. .. .. . 177
Location 177
Low ... .. .. .. ... ....... ... .. .. .. . 147
Replacing the battery ........... .. . 176
State of charge . . . . . . . . . . . . . . . . . . . . 147
W inter operation . . . . . . . . . . . . . . . . . . 17 5
Wo rking on the battery . . . . . . . . . . . . . 177
Before driving . . . . . . . . . . . . . . . . . . . . . . . 92
Blended gasoline .......... .. .. .. ... 16 1
Boost . .... .. ................. .. .... 26
Booster seats . .... ..... ... .. .. .. ... 137
Boost pressure ind icator ........... ... 26
Brake fl uid
Changing the brake fluid ... .. .. .. .. .
175
Checking the brake fluid level . ....... 174
What is the correct brake flu id level? .. 174
What should I do if the brake fl uid warn-
ing light comes o n? ................
174
Brake system ... ........... .. .. .. ... 174
Anti-lock brake system ........ ... ... 18
Brake ass ist system ........... ... .. 142
Brake fl uid ................. ... ... 174
Brake fluid spec ifi cat ions for refill and re
p lacemen t . . . . . . . . . . . . . . . . . . . . . . .
17 5
Brake ligh t de fect ive ................ 20
Brake pads . . . . . . . . . . . . . . . . . . . . . . . 150
General i nformation ... ... .. .. .. .. . 145
How does the moisture or road sa lt affect
the brakes? . ............. .... .. .. .
145
Malfunct ion . . . . . . . . . . . . . . . . . . . . . . . 14
Warn ing/ indicato r lights ....... ... ... 14
Wo rn brake pads symbol ....... ... ... 19
Brea k-in pe riod ... .. .... ... .. .. .... . 150
Brake pads . ............. .... .. ... 150
Tires
Bulbs
C
Ca lifo rnia Proposit io n 65 Wa rning
150
2 16
166
B att ery specific .......... .. .. .. .. . 178
Capac it ies ......................... 224
Carbon parts
Clean ing . . . . . . . . . . . . . . . . . . . .
157, 158
Care .. .. .. .. .. .. ........... .. .. ... 155
Cargo area
refer to Luggage compartment . . . . . . . . 97
Cata lytic converter .................. 151
Inde x 231
CD changer ... .... .. . .. .. ..... ... .. . 66
Certif ication ...... .. ............... 229
Changing a flat tire . ............. .. .. 209
Ch ang ing engine oil ................. 171
Checking
Battery ac id level ............. .... .
178
Engine coolant level ........... .... . 173
Checking t ire pressure ............... 187
Child res train t
Danger of using child res train ts in the
front seat
110
Child rest rain ts
Where can I ge t addi tional in format io n
abo ut child res train ts and the ir use? ..
1 4 1
Child safety .............. .......... 130
Convertible locking retractor ......... 138
Important safety instructions for using
c hi ld safety seats . .. .. ......... .. ..
133
Important t hings to know whe n driving
with children .. .... . ... ...... ... ..
130
Child safety seat .... ........... .... . 135
Convertib le locking retractor ......... 138
Installing . .. .. .. ................. 138
Child safety seats
Booster seats .. .. .. ...............
137
Co nve rtib le child seats ... ... ..... .. 135
How do I properly install a child safety
. h' l ? 133 sea t m my ve 1c e ................. .
Infan t seats . .. .. .... ........... ..
135
Safety instr uctions . .. .. ..... ... .. .. 133
Cigarette lighter ... .. . .. .. ... ..... .. . 65
Cleaning ..... .. ...... ............. 155
C limate controls . .. .. ........... .... . 68
A/C opera tion .. .. .... ............. . 71
Air distribution . . . . . . . . . . . . . . . . . . . . . 70
Air recircu lation mode . . . . . . . . . . . . . . . 71
Automat ic mode ... .. .. .... ... .. .. . 71
Controls . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Defrost . .. .. .. .. .. ............... . 71
Economica l use .. .. . .. .. ... ..... .. . 72
Fan ................... ........... 69
Heated seats . . . . . . . . . . . . . . . . . . . . . . 72
Heating ... .. .. .. .... ........... .. . 68
Pollu tant fi lter . . . . . . . . . . . . . . . . . . . . . 68
Rea r window defogger .. ..... ... .. .. . 71
Switc hing on and off .... .... ... .. .. . 69
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E
Efficiency program ...... ... .. .. .. .. .. 27
F ue l economy messages ... .. .. .. .. .. 27
Memory leve ls . . . . . . . . . . . . . . . . . . . . . 23
Other equ ipment .. ....... .. .. .. .. .. 2 7
E lapsed t ime . .. .... .... ... .. .. .. .. .. 23
E lectro -mechanical power assist . . . 17, 146
El ectronic differential lock (EDL) . ... ... 142
Warn ing/ indicato r lights ... .. ...... .. 18
E lect ro nic immobilize r . . . . . . . . . . . . 12, 33
Electro nic power control
EPC warning/ind icator light .. ... .... . 19
El ectro nic speed limite r .. ... .. .. .. .. .. 31
E lec tronic Stabilization Control ( ESC) .. . 142
War ning/ indicator ligh ts ... .. .. .. .. .. 18
E mergency fla sher . . . . . . . . . . . . . . . . . . . 51
War ning/ indicato r lights ............ . 21
Emergency locking . ..... ... .. .. .... .. 37
E me rgency opera tion
Conve rtible top ........ .. .. .. .. .. .. 44
Rear lid . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
E mergency sta rting . ....... .. .. .. .. . 217
Emergen cy towing ..... .. .. .. .. .. .. . 219
Energy management ....... .. .. .. .. . 14 7
B attery power . . . . . . . . . . . . . . . . . . . . 1 49
D river notification ..... ... .. .. .. .. . 149
E ng ine
C hec king and fill ing locations . .. .. .. . 167
Coolan t .. .. .... .. . .... .. .... .. .. . 172
D ata . ..... .. .. .. .. .... ... .. .. .. . 225
Hood .. .. .. .. .. .. .. .... ... .. .. ... 165
Starting . . . . . . . . . . . . . . . . . . . . . . 73, 74
Startingwith jumpercab les .. .. .. .. . 21 7
Stopping . .. ............. .... .. .. .. 75
E ng ine compartmen t ..... .. .. .. .. .. . 16 7
Safety ins tructions ..... ... .. .. .. .. . 165
Wo rking in the engine compartment .. 165
E ng ine cooling system ...... .. .. .. .. . 17 2
Adding cool ant ........... .. .. .. .. . 173
Chec king the eng ine coolan t leve l .. .. . 173
M alfunct ion . . . . . . . . . . . . . . . . . . . . . . . 17
Radiator fan . . . . . . . . . . . . . . . . . . . . . . 17 4
T emperature ga uge .... ... .. .. .. .. .. 11
E ng ine hood
C losing .. .. ............. .... .. ... 165
H ow to release the hood ... .. .. .. .. . 165
Inde x 233
Engine o il . ... .... .. . .. .. ..... ... . .
167
Adding ... .. .. .... . ... ...... ... . . 170
Additives . ... .. .. .. . .. ... .... ... . . 170
Changi ng ... .. .. ........ ........ . 171
Checking the engine oil leve l ....... . . 170
Ind ications and conditions requir ing ex -
t ra checking ... .. .. . .. ... ... .. .. . . 170
Oil consumpt ion ... ............... . 169
Oil g rades . .. .. .. .. . ... .......... . 16 7
Recommende d oi l che ck intervals . .. . . 170
Spec ificat ion and viscosity .... ... .. . . 167
Temperature display . .. ..... ... .. .. . 26
Engine o il leve l .. .. .. ............... . 20
Engine o il pressure (ma lfunction) .. .. .. .
16
Engine o il sensor defective ......... .. . 20
E ngine o il temperature indicato r ...... . . 26
Engine speed limitation ... .... ... .. .. . 19
En vir onment
Br eak-in per iod . .. .... .... ..... .. .. 150
C atalytic converter . .. .. ..... ... .. .. 151
Disposing of your vehic le battery ... .. 176
Driving at high speeds .. ..... ... .. .. 153
Driving to minimi ze po llution and noise 152
Fuel ...... .. .. .. .. .. .... ....... .. 163
Fuel economy . . . . . . . . . . . . . . . . . . . . . 152
Leakage from your vehicle ........... 165
Letting the vehicle stand a nd warm up . 153
Proper disposal of dra ined brake flu id . 175
P roper disposal of d ra ined eng ine cool-
an t ...... .. .. .. ................. 173
Proper disposal of d rained eng ine
oi l .. ... .. .. .. .... . ... ...... 170,171
Recycling used engine oil ..... ... .. .. 170
Un leaded fuel .. .. .. ............... 161
Wha t shou ld I do with an o ld bat tery? . 176
E PC
refer to E lect ronic power control ... ... 19
ESC (E lectronic Stab ilizat io n Control)
Wa rning/ind icator lights ... ..... .. .. . 18
Event Da ta Recorder (EDR) .......... .. 142
E xhaus t tai l pipes
Cleaning . ... .... .. . .. .. ..... ... .. 157
Expansion tank . . . . . . . . . . . . . . . . . . . . . 173
Exterior m irrors
Adjusting . . . . . . . . . . . . . . . . . . . . . . . . . 52
Dimming .. .. .. .... .......... ...... 53
Heating ..... .. .... .......... ...... 52
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