trailer AUDI A3 CABRIOLET 2015 User Guide

246 Tires and wheels
being loaded on the vehicle.
That weight may not safely
exceed the available cargo
and luggage load capacity
calculated in Step 4.
6. If your vehicle will be towing
a trailer, load from your trail­
er will be transferred to your
vehicle. Consult this manual
to determine how this re­ duces the available cargo
and luggage load capacity of
your vehicle.
.,.Check the tire sidewall
(¢ page 248, fig. 176) to de­
termine the designated load
rating for a specific tire.
Tire service life
The service life of tires depends
on a lot of different things in­
cluding proper installation and
balancing, correct tire pressure
and driving style.
Fig. 174 Tire tread: tread wear indi­
cators (TWI)
Fig. 175 Rotating tires for more even
wear
Tread Wear Indicator (TWI)
The original tires on your vehi­
cle have
1/16 inch (1.6 mm)
high "wear indicators"
¢ fig. 174 running across the
tread. Depending on the make,
there will be six to eight of
them evenly placed around the
tire. Marks on the tire sidewall (for example "TWI" or other
symbols) indicate the positions
of the tread wear indicators.
Worn tires must be replaced. Different figures may apply in
other countries
¢ .&. .
Tire pressure
Incorrect tire pressure causes
premature wear and can cause
sudden tire blow-out. For this
reason, tire press ure must be
checked at least once a month
¢page 240.

the tire chain before mounting the wheel
and tire is recommended.
- Loose items in the passenger compart­
ment can cause serious personal injury
during hard braking or in an accident.
Never store the inf latab le spare tire or
jack and tools in the passenger compart­
ment.
- Normal summer or winter tires must not
be mounted on the compact spare wheel
rim.
Removing the subwoofer
A pp lies to vehicles: with s ubwoofer
The subwoofer must be removed before the
spare wheel* can be removed.
Fig. 182 Spare wheel well: subwoofer
Removing the subwoofer
• Lift the cargo floor c:, page 262, fig. 180.
• Pull the latch (D c:> fig. 182 toward the ca­
ble.
• Press the locking tab @down .
• Remove the connector @ and set the re-
moved cable aside.
• Remove the bolt@.
• Carefully remove the subwoofer.
Installing the subwoofer
• Carefully place the subwoofer n the rim
well. The word "FRONT" on the subwoofer
must face forward .
• Insert the connector that was removed .
• Secure the subwoofer with the bolt.
~ • Fold the cargo floor cover back into place.
r--. > co
rl I.O
"' rl
"' rl
What do I do now? 263
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 failure, pull the
car well away from moving traffic and try to
reach
level ground before you stop c:> _&..
• All passengers should leave the car and
move to a safe location (for instance, behind
the guardrail)
c:> _&..
• Engage the parking brake to prevent your
vehicle from rolling unintentionally
c:> _&. .
• Move selector lever to position P c:> ,&..
• If you are towing a trailer, unhitch the trailer
from your vehicle.
• Take the
jack c:, page 261 and the spare tire
r:> page 262 out of the luggage compart­
ment .
A WARNING
You or your passengers could be injured
while changing a wheel if you do not fol­
low these safety precautions:
-If you have a flat tire, move a safe dis­
tance off the road. Turn off the engine,
turn the eme rgency flashers on and use
other warning devices to alert 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 and possibly slipping off the
jack, always fully set the parking brake
and block the wheel diagonally opposite
the wheel being changed. 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 the
ground is level and firm. If necessary,
use a sturdy board under the jack.
-

282 Consumer Information
Consumer Information
Warranty coverages
You r Audi is covered by the following war­
ranties:
- New Vehicle Limited Warranty
- Limited Warranty Against Corrosion Perfo-
ration
- Emissions Control System Warranty
- Emissions Performance Warranty
- California Emissions Control Warranty (USA
vehicles only)
- California Emissions Performance Warranty
(USA vehicles only)
Detailed information regarding your warran­
ties can be found in your
Warranty & Mainte­
nance booklet .
Operating your vehicle
outside the U.S.A. or
Canada
Government regu lations in the United States
and Canada require that automobiles meet
specific emission regulations and safety
standards. Therefore, veh icles built for the
U.S.A . and Canada differ from vehicles sold in
other countries .
If you p lan to take your vehicle outside the
continental limits of the United States or Can­
ada, there is the possibility that:
- unleaded fuels for vehicles with cata lytic
converter may not be available;
- fuel may have a considerably lowe r octane
rating. Improper fuel may cause engine
damage ;
- service may be inadequate due to lack of
proper service facilities, tools or testing
equipment ;
- replacement pa rts may not be readily availa­
ble.
- Navigation systems for vehicles built for the
U.S.A. and Canada will not necessar ily work
in Europe, and may not work in other coun­
tries outside North America .
(D Note
Audi cannot be responsible for mechanical
damage that could result from inadequate
fuel, service or parts availability.
Audi Service Repair Manuals and Literature
Audi Official Factory Service Manuals and Lit­
erature are published as soon as possible after
model introduction. Service manuals and lit­
erature are available to order from the Audi
T echnical Literature Ordering Center at:
www.audi.techliterature.com
Maintenance
General
Your vehicle has been designed to help keep
maintenance requirements to a minimum.
However, a certain amount of regular mainte­
nance is still necessary to assure your vehicle's
s afety, economy and rel iability. For detailed
vehicle maintenance consult your Warranty &
Maintenance booklet.
Under difficult operating conditions, for ex­
ample at extremely low outside temperatures,
i n very dusty regions , when towing a trailer
very frequently, etc., some service work
should be performed between the intervals
specified. This applies particularly to:
- oil changes, and
- cleaning or replacing the air filter .
(® For the sake of the environment
By regularly maintaining your vehicle, you
help make sure that emission standards
are maintained, thus minimizing adverse
effects on the environment.
Important considerations for you and
your vehicle
The increasing use of electronics, sophisticat­
ed fuel injection and emission contro l sys-
tems, and the genera lly increasing technical
liJJ,

M N ,....
> co ,...., \!) er, ,...., er, ,....,
Tire pressure .... ..... ..... .. .. .. .. .
Tire pressure monitoring system .. . ... .
T ires .. .. .. .. ............. ···· ·· ·· ·
Service l ife . .. ........... .. .. .. .. .
Speed rating letter code . ... . .. .. .. .
Tire manufacturing date ....... ... . .
T ire pressure monitoring system .... .
T ire spec ifications ........ .... .. .. .
Tread depth .. ........... .. .. .. .. .
Uniform tire quali ty g rading .. .. .. .. . 2
4 0
258
228 246
251
250
259
250
246
254
W inte r tires . ... ...... ... .. .. .. .. . 255
Tires and vehicle load lim its ..... .... .. 243
T ires and whee ls
Checking tire pressure ..... .. .. .. .. . 240
Cold tire i nflation pressure . .. .. .. .. . 235
Dimensions . ................ .. ... .
Gene ral notes ............. ... ... . .
Glossary of t ire and load ing te rmino lo-
gy .. .. ' . .. .. ............. .. .. .. .
L ow aspec t ratio tir es ...... .. .. .. .. .
N ew tires and wheels ... ... .. .. .. .. .
Replacing . ... ... .. ..... ... .. .. .. .
Snow chains 248
228
230 25 7
2 48
249
256
Tires and vehicle load limits .. .. .. .. . 243
Wheel bolts .. ........... .. .. .. .. . 256
W inte r tires
Tire service life
Tool kit 255
246
26 1
Torn or frayed safety be lts ... .. .. .. .. . 141
Tow ing
Tow truck procedures ... ... .. .. .. .. . 275
Towing loop ................ ... ... .. 276
T PMS (tire pressure monitor ing system) . 259
T railer towing 201
Opera ting ins truc tions .. ... .. .. .. .. . 201
Tec hnical req uirements . . . . . . . . 20 1, 202
Trailer towing tips ..... ... .. .. .. .. . 202
T ransm ission ma lf u nct io n (ind icator
l ight) . .. .. .. .. .. ........... .. .. ... 1 16
Transport Canada .... ...... .. .. .. .. . 135
T ravel mode ... ... ..... ... .. .. .. .. .. 52
T read Wear Indicato r (TWI) .. .. .. .. .. . 246
Trunk
refer to Luggage compartment . . . . . . . . 65
T u rn signa ls . ... .. ... . .... ... .. .. .... 51
Indicator light . . . . . . . . . . . . . . . . . . . . . 25
Inde x 297
u
Unfastening safety bel ts . ..... ... .. .. 143
Uni directional tires ... . .. .... .... .. .. 229
Un iform tire quality grading ...... .... 254
Un l ocking/locking
by remo te control . . . . . . . . . . . . . . . . . . 33
with the centra l locki ng sw itch ... .. .. . 35
with t he conven ience key ..... ... .. .. . 34
with the door lock . . . . . . . . . . . . . . . . . . 35
V
Vanity mirro r . . . . . . . . . . . . . . . . . . . . . . . . 53
Vehicle Care/ cleaning .. .. .... ......... .. .. 204
Di mens ions .. .. .. .. .. ........... .. 280
Ou t of service ...... . .. ... .... ... .. 198
Vehicle control modules .............. 194
Vehicle identification label ..... ... .. .. 279
Vehicle Ident ifi cat io n N umbe r (V IN) .. .. 279
Vehicle jack . . . . . . . . . . . . . . . . . . . 261, 266
Vehicle key . . . . . . . . . . . . . . . . . . . . . . . . . 31
Vehicle lite ratu re .. .. ... ....... .... ... 5
Vehicle tool kit .. .. ............. .... 261
w
Warning/indicator lights
System indicator light (MIL) .. ... .. .. . 23
Warning/ Indicato r lights
Airbag system . . . . . . . . . . . . . . . 158, 159
PASS ENGER A IR BAG OF F .... ... .. .. 159
Warning lights
r e fer to Indicato r lights ......... .... . 13
Warranty coverages ................. 282
Washe r fl uid level (ind icator light) ... .. . 24
Washer reservo ir ... ................ 227
Washing matte finish paint .... ... .. .. 204
Wea r indica to r .. .. ............... .. 246
Weights .. .. .. .. .. .. ............... 279
What happens if yo u wear your safety belt
too loose? . ... .... .. . .. .. ..... ... .. 142
What happe ns to unbe lted o ccupants? .. 139
What impairs driving safety? ...... .. .. 127
Wha t shou ld I do after changing a
whee l? ... .. .. .... .. . .. .. ..... ... .. 242
•
•