212 Tire s and wheel s
driving a few yards and correct if neces
sary. Follow the instructions from the
snow cha in manufacturer when doing so.
(D Tips
Where snow chains are mandatory oncer
tain roads, this normally also applies to
veh icles with all wheel drive .
Wheel bolts
Wheel bolts must always be tightened to the
correct torque.
The design o f whee l bolts is matched to the
factory insta lled rims . If different rims are fit
ted, the correct wheel bolts with the right l ength and correctly shaped bolt heads must
be used. This ensures that wheels are f itted
securely and that the brake system functions
correctly .
In certain circumstances, you may not use
wheel bolts from a different vehicle -even if it
is the same model¢
page 239.
.&_ WARNING
Improperly tig htened or maintained wheel
bolts can become loose ca using loss of
cont ro l, a co llision and serious p ersona l in
Jury.
- Always keep the wheel bolts and the
threads in t he wheel hubs clea n so the
wheel bolts can tu rn easily and be prop
erly tigh tened.
- N ever grease or oil the wheel bo lts and
the threads in the wheel h ubs. They can
become loose w hile d riving if greased or
oiled, even if tightened to the specified
torq ue.
- O nly use wheel bo lts that be long to the
rim being installed.
- N ever use different whee ls bolts on your
vehicle.
- Alw ays mai nta in the co rrec t tighte ning
tor que fo r the wheel bo lts to reduce the
risk of a wheel loss . If the tightening tor
que of the wheel bo lts is too low, they
can loosen and come out when the veh i- cle is moving.
If the tig
hte ning torq ue is
too high, the wheel bolts and threads
can be damaged and the wheel can be
come loose.
(D Note
The specified torque for the whee l bolts is
105 ft lbs. (140 Nm) with a tolerance of
± 7,4 ft lbs. (± 10 Nm). Torque whee l bolts
diagonally . After changing a wheel, the
torque must be checked as soon as poss i
ble with a to rque wrenc h - preferab ly by an
a uthorized Aud i dea le r or qualified wor k
shop.
Low aspect ratio tires
Your A udi is factory -eq uipped w it h low aspect
ratio tires. These tires have been thoroughly
tested and been se lected specifically for your
model for their superb performance, road fee l
and handling under a variety of driving condi
t ions . Ask your authorized Audi dealer for
more details .
The low aspect ratio of these tires is ind icated
by a numeral of
55 or less in the tire's s ize
designation . The numeral represents the ratio
of the tire's sidewall height in relation to its
t read width exp ressed in percentage. Conven
tiona 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
pa rticularly sen sitive to improp er inflation
pre ssure. It i s therefor e important that low
a spe ct ratio tir es are inflated to the spe cified
pre ssure and that the inflation pre ssure i s
regula rly checked and mainta ined. Tire pre s
sure s should be checked at lea st once a
month and always befo re a long trip
¢ page 201, 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 potholes, curbs, gul lies
or ridges on the road, particularly if the tire is
underinflated . ..,.
M N
M N
0 ::i co ,...., \!) ..,.,
,...., ..,., ,....,
Selector lever ...................... 81
Selector lever emergency release . . . . . . 86
Automatic wipers .......... .... .. .... 46
Auto Safety Hotline ........ .. .. .. .. . 101
Average speed . . . . . . . . . . . . . . . . . . . . . . . 22
Avoid damaging the vehicle ...... ... .. 161
B
Bass box .. .. ............. .... .. .. . 217
Battery . . . . . . . . . . . . . . . . . . . . . . . 15, 190
Battery location inside the luggage com-
partment .. .. ........... .. .. .. ... 190
Charging . .. ............. .... .. ... 192
Important warnings when working on
the battery . ................ ... ... 190
Jump starting .... .. ...... .. .. .. .. . 228
Low ... .. .. .. ... .. ..... ... .. .. .. . 159
Replacing the battery ..... .. .. .. .. . 193
State of charge . . . . . . . . . . . . . . . . . . . . 159
Winter operation ............ ... .. . 190
Working on the battery ....... ... .. . 190
Before driving . . . . . . . . . . . . . . . . . . . . . . . 94
Blended gasoline .......... .... .. .. . 17 5
Blower (automatic climate control) . . . . . . 65
Booster seats ................ ... ... 141
Brake fluid Changing the brake fluid ... .. .. .. .. . 189
Checking the brake fluid level . .. .. .. . 189
Reservoir .. ... ... .... ... .. .. .. .. . 189
What is the correct brake fluid level? .. 189
What should I do if the brake fluid warn-
ing light comes on? ....... .. .. .. .. . 189
Brake system . . . . . . . . . . . . . . . . . . . . . . . 189
Brake assist system . . . . . . . . . . . . . . . . 153
Brake fluid ........... ...... .... .. 189
Brake fluid specifications for refill and re-
placement . ............. .... .. .. . 189
Brake light defective ...... .. .. .. .. .. 18
Brake power assist unit ...... .. .. .. . 156
Brakes ..... .. ................ .... 156
Electromechanical parking brake .. .. .. 70
General information ......... ... .. . 156
Warning/indicator lights ..... .. .. .. .. 13
Worn brake pads symbol . . . . . . . . . . . . . 17
Braking Emergency braking function . . . . . . . . . . 72
Starting on inclines . . . . . . . . . . . . . . . . . 72
Index 243
Break-in period . ..... ............... 161
Tires 161
Bul bs ........ .. .. ................. 226
C
California Proposition 65 Warning ... .. 180
Battery specific .................. . 191
Capacities .. .. .. .. ............... .. 235
Caps for wheel bolts, removing ...... .. 220
Carbon parts Cleaning . . . . . . . . . . . . . . . . . . . . 172, 173
Care ....... .. .. .. ................. 170
Cargo area
refer to Loading the luggage compart-
ment ....... .. .... ............... 100
Catalytic converter ................. . 161
Center armrest Adjusting . .. .. .. .. ............... . 51
Storage compartment . ...... ..... .. . 51
Central locking . ..... ................ 28
Central locking switch ............... 32
Convenience key . . . . . . . . . . . . . . . . . . . . 31
Remote control key . . . . . . . . . . . . . . . . . 30
Certification . . . . . . . . . . . . . . . . . . . . . . . 240
Changing a flat tire ... . .. .. .. .... .... 218
Changing a wheel ...... ............. 218
Changing engine oil .. ........... .... 185
Checking Engine coolant level ............... . 186
Checking tire pressure .............. . 201
Child restraints
Danger of using child restraints in the
front seat . . . . . . . . . . . . . . . . . . . . . . . . 114
System anchors .. .. .............. . 146
Where can I get additional information
about child restraints and their use? .. 151
Child safety ... .. ...... ........... .. 133
Convertible locking retractor ........ . 143
Important safety instructions for using
child safety seats ... .............. . 136
Important things to know when driving
with children .. .. ............... .. 133
Installing a child restraint using the
LATCH system . . . . . . . . . . . . . . . . . . . . . 148
Mounting and releasing the anchorage
hook ... .. .. .. .. .. . ....... ..... .. 148
•
•
246 Index
Checking the engine coolant leve l .... . 186
Radiator fan . . . . . . . . . . . . . . . . . . . . . . 188
E ng ine coolant temperature
Temperature gauge ..... .. .. .. .. .. .. 10
Eng ine hood
Closing .... .......... ...... ... .. . 179
H ow to release the hood . . . . . . . . . . . . 179
E ngine oi l ..... ........... .... .... . 181
Adding .. .. ............. .. .. .. ... 184
Addi tives . . . . . . . . . . . . . . . . . . . . . . . . . 184
Changing .. ................ ... .. . 185
Check oil level ............ ... .. .. . 184
Consumpt ion . ........... .. .. .... . 184
I ndicator light . . . . . . . . . . . . . . . . . 17, 18
O il consumption .......... .... .... . 183
Oil dipstick ............... ... .... . 184
Oil grades . ................. ..... . 181
Pressure malfunction ....... .... ... .. 15
Sensor defective . . . . . . . . . . . . . . . . . . . . 18
Specification and viscosity .. .. .. .. .. . 181
Engine speed limitation ......... .... . . 17
Environment Break-in period ... ..... ... .. .. .. .. . 161
Cata lytic converter ............ ..... 161
Disposing of your vehicle battery .. .. . 193
Driving at high speeds ......... .. .. . 163
Driving to minimize pollution and noise 162
Fuel ... .... ................ ..... . 177
Fue l economy .............. .. .... . 162
Leaks under your vehicle ... .. .. .... . 179
Le tting the vehicle stand and warm up . 163
Proper disposal of dra ined brake fluid . 189
Proper disposal of dra ined engine cool-
ant . .. .... ... .......... .. .. .. .. . 187
Proper disposal of dra ined engine
oil . . . . . . . . . . . . . . . . . . . . . . . . . 184, 185
Recycling used engine oil ......... .. . 184
Roof rack . . . . . . . . . . . . . . . . . . . . . . . . . 58
Unleaded fuel ..................... 175
What should I do with an old battery? 193
EPC
refer to Electronic power control . . . . . . 17
Event Data Recorder (EDR) . ........ .. . 152
Exhaust tail pipes Cleaning . ............... ........ . 171
Expansion tank ............ .. .. .. .. . 186
Exterior lighting ............ ... .. ... . 40 Exterior
mirrors
Adjusting ..... .. .. .............. .. 44
Dimm ing . ... .. .. .. .............. .. 45
Heating ... .... .. ............. .... . 44
F
Fan
Radiator
Fastening Booster seats .... ................ .
Convertib le child safety seats ..... .. .
Infant seats ..... ............. ... .
Flat tire 188
141
140
139
Changing . .... .. ............. .... 218
Floor .. .. .. .. .. .. .. ...... .... ..... . 62
Floor mats . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Fog lights/rear fog lights ...... ... .. .. . 40
Folding chocks .. .. ... .......... .... 217
Folding the rear seat forward ... .. .. .. . 60
Foot pedals ..... .. .......... ...... .. 99
For the sake of the environment Gasoline fumes and the environment .. 177
Le tting the engine warm up . . . . . .
66, 68
Refueling . . . . . . . . . . . . . . . . . . . . . . . . 177
Sav ing fuel by early upshifting ........ 11
Front airbags Description . . . . . . . . . . . . . . . . . . . . . . . 116
How they work . .. ............. .... 121
Frontal collis ions and the laws of physics 105
Front passenger's door emergency lock ing 33
Front seats . . . . . . . . . . . . . . . . . . . . . . . . . 50
Adjusting . .... .. ............. .... . 96
Child restraints in the front seat .. .. .. 114
Fuel Additives . ..... .. ................ . 175
B lended gasoline ................. . 175
Consumption .. ... ................ . 22
Filler neck . .... .. ............. .... 176
Fuel gauge . . . . . . . . . . . . . . . . . . . . . . . . 11
Gasoline .. ... ... ................ . 175
Gasoline additives ................ . 176
Low fuel level symbol . . . . . . . . . . . . . . . 18
Octane rating .. .. ............. .... 175
Recommendation ... ........... .. .. 175
Refueling . . . . . . . . . . . . . . . . . . . . . . . . 177
Reserve ........................... 11
Tank capacity .. .. ... .......... .... 235