tire pressure AUDI A5 CABRIOLET 2013 Owners Manual

Safety belts . . . . . . . . . . . . . . . . . . . 13 2
General notes . . . . . . . . . . . . . . . . . . . . 132
Why safety be lts? . . . . . . . . . . . . . . . . 133
Safety belts . . . . . . . . . . . . . . . . . . . . . 135
Safety belt pretens ioners . . . . . . . . . . 138
Airbag system . . . . . . . . . . . . . . . . . 140
Important things to know . . . . . . . . . . 140
Front airbags . . . . . . . . . . . . . . . . . . . . 144
Mon itor ing the Advanced Airbag
System . . . . . . . . . . . . . . . . . . . . . . . . . 151
Knee ai rbags . . . . . . . . . . . . . . . . . . . . . 1 55
Side airbags . . . . . . . . . . . . . . . . . . . . . 158
Child Safety . . . . . . . . . . . . . . . . . . . 16 1
I mpor tant th ings to know . . . . . . . . . . 16 1
C hi ld safety sea ts . . . . . . . . . . . . . . . . . 16 7
I ns tall ing a chi ld safety seat . . . . . . . . 171
L A T CH Lower anchorages and tether
for children ... .... .... ... .. .. .. .. 175
Addit ional Information
178
Vehicle operat ion . . . . . . . . . . . . . 179
Intelligent technology . . . . . . . . 179
Not ice about data recorded by vehicle
control modules.......... .... .. .. 179
Electronic Stabilization Control (ESC) . 179
Braking . . . . . . . . . . . . . . . . . . . . . . . . . 181
E lect ro-mechanical power assist ,
dynamic stee ring . . . . . . . . . . . . . . . . . 183
Driving w ith your qu attro ® . . . . . . . . . 184
E nergy management . . . . . . . . . . . . . . 185
Driving and environment . . . . . 18 7
The first 1,000 miles (1,500 km) and
afterwards . . . . . . . . . . . . . . . . . . . . . . 187
Avoid damaging the vehicle . . . . . . . . . 187
Driving through water on roads . . . . . 187
Catalytic converter . . . . . . . . . . . . . . . . 188
Operate your vehicle econom ically and
minim ize pollution . . . . . . . . . . . . . . . . 189
Trailer towing . . . . . . . . . . . . . . . . . 191
Driving w ith a trailer . . . . . . . . . . . . . . 191
Trailer towing tips . . . . . . . . . . . . . . . . 193
Table of contents 3
Vehicle care . . . . . . . . . . . . . . . . . . .
194
Cleaning and protection . . . . . . 194
Genera l information . . . . . . . . . . . . . . 194
Care of exterior . . . . . . . . . . . . . . . . . . 194
Care of interior . . . . . . . . . . . . . . . . . . . 201
Fuel supply and filling your
fuel tank . . . . . . . . . . . . . . . . . . . . . . .
207
Gasoline . . . . . . . . . . . . . . . . . . . . . . . . 207
Fuel tank . . . . . . . . . . . . . . . . . . . . . . . . 209
Checking and filling . . . . . . . . . . . 212
Engine hood . . . . . . . . . . . . . . . . . . . . . 212
Engine compartment .............. 214
E ngine oil . . . . . . . . . . . . . . . . . . . . . . . 214
En gine cooling system . . . . . . . . . . . . . 219
Br ake fluid . . . . . . . . . . . . . . . . . . . . . . 221
Battery . . . . . . . . . . . . . . . . . . . . . . . . . 222
Windshie ld/headlight* washer
container . . . . . . . . . . . . . . . . . . . . . . . 226
Tires and wheels . . . . . . . . . . . . . . 227
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . 227
Tire pressure monitoring system 245
Do-it-yourself service . . . . . . . . . 248
What do I do now? . . . . . . . . . . . . 24 8
Vehicle tool kit . . . . . . . . . . . . . . . . . . . 248
Space-saving spare tire (compact
spare tir e) . . . . . . . . . . . . . . . . . . . . . . . 248
Changi ng a wheel . . . . . . . . . . . . . . . . . 249
Fuses and bulbs . . . . . . . . . . . . . . . 2SS
Fuses ... .. .. .. .. .. . .. .... ...... . 255
Bulbs . . . . . . . . . . . . . . . . . . . . . . . . . . . 258
Emergency situations . . . . . . . . . 259
General . . . . . . . . . . . . . . . . . . . . . . . . . 259
Starting by pushing or towing . . . . . . . 259
Star ting with jumpe r cables . . . . . . . . 259
U se of jumpe r cables . . . . . . . . . . . . . . 260
E mergency towing with commercia l
tow truck . . . . . . . . . . . . . . . . . . . . . . . 261
Lifting vehicle . . . . . . . . . . . . . . . . . . . . 263
•
•

14 Instrum ent s and w arn ing /indic ato r light s
Engine cooling system
•
Electromechan ica l park ing brake
r:::;,page 18 ¢page80
Steering column lock
[I]
Tire pressure monitor ing
r:::;,page 18
system./
¢page246
Ignition lock Tire pressure monitoring system
r:::;,page 18
lliliB r:::;, page 246
USA models:
~
Electronic power cont rol./
Speed warning system ¢page20
r:::;,page 82
-
Canada models :
•
Malfunction indicator Lamp
Speed warning system (MIL)
./
¢ page 21
r:::;,page82
Ad apt ive cru ise control./
111
Engine speed limitation
r:::;,page 21
r:::;,page 96
•
Engine o il level
Yellow indicato r lights r:::;, page 17
Yellow symbols indicate a priority 2 ma lf u nc-
-
•
Engine oi l sensor
tion -Warning!
r:::;, page 21
•
Power top operation
ri1
Battery
r:::;,page43 ¢page 17
Electronic Stabilization Control
-
II II
Tank system
(ESC) ./
¢page 21
r:::;, page 19
I
Electronic Stabilization Control
•
Warm up engine*
(ESC) ./ ¢
page 208
r:::;,page 19
•
Windshield washer fluid level
USA models : ¢page 21
~
Anti-lock braking system (ABS)
defective ./
m
Windshield w ipers
r:::;, page 19 ¢
page 21
Canada models :
!I
Remote control key
[I]
Anti-lock braking sys tem (ABS)
¢page 78
defective ./
--
r:::;,page 19
!!
Battery in remote control key
I
USA models: ¢page33
Safety systems ./
l:J
Defective light bulb warning ' r:::;,page20
¢page 21
Canada models :
El
Safety systems ./
•
Fog lights
¢page20 ¢
page 21
•
Worn brake pads
E
Rear fog light(s) *
¢page20 ¢page 21

24 Driver information d isplay
Driver information
display
Introduction
The Driver information display inside the in ­
strument cluster provides you, the driver ,
with important information.
Fig. 7 Ins trum en t cl uster : ce nter display
Fig. 8 W iper lev er: con trols fo r th e menu disp lay
Center display
W ith the ignition on, the display in the Dr iver
I nformation System shows the following in­
formation :
- CD* inserted or Radio* station set
- Outside temperature* : At temperatures be-
low 41 °F (+5 °C), a snowflake symbol ap­
pears in front of the temperature display
c::> .&_.
-Warning if one of the doors, front lid or en-
gine compartment lid is not closed .
Additional functions
You can open the following functions in the
Driver Information System display by pressing
the
! RESET I button c::> fig. 8 one or more times:
Digital speedometer*
Tire pressure monitoring *
~page245
Trip computer
Efficiency program*
Service interval display
c::>page25
c::> page 27
c::> page 28
--·-
Gearshift selector positions
Automatic transmission
Adaptive cruise control*
Auto Check Control
<::>page 82
Some functions and vehicle components are
scanned for their operating status when you
switch the ignition on and whi le you are driv­
ing. Malfunctions or required service proce­
dures are signaled audibly and indicated by
red and yellow illuminated symbols and re­
minders in the d isplay.
A WARNING
--- Never rely exclusively on the outside
temperature display to determine if a
road surface is icy or not. Keep in mind
that road surfaces, especially br idges
and overpasses, could be ice covered and
slippery even at an outside temperature
above 41 °F (+5 °C).
- Always remember, even if the "snow­
flake" symbol (ice warning) does not ap­
pear in the disp lay, black ice cou ld be on
the road.
- Always reduce your speed and drive with
specia l care in cold weather cond itions
when the chance of encountering icy
road surfaces increases.
¢j) Tips
If the vehicle is stationary, or if you are
driving at a very low speed, the tempera­
ture shown in the display might be s light ly
higher than the actual outs ide tempera­
ture. This i.s caused by the heat being radi­
ated from the engine .

Driving Safely
General notes
Safe driving habits
Please remember -safety first!
This chapter contains important information,
tips, instructions and warnings that you need
to read and observe for your own safety, the
safety of your passengers and others . We have
summarized here what you need to know
about safety belts, airbags, child restraints as
well as child safety. Your safety is for us
priori­
ty number 1.
Always observe the information
and warnings in this section - for your own
safety as well as that of your passengers.
The information in this section applies to all
model versions of your vehicle . Some of the
features described in this sections may be
standard equipment on some models, or may
be optional equipment on others. If you are
not sure, ask your authorized Audi dealer.
A WARNING
-Always make sure that you follow the in­
structions and heed the WARNINGS in
this Manual. It is in your interest and in
the interest of your passengers.
- Always keep the complete Owner's Liter­
ature in your Audi when you lend or sell
your vehicle so that this important infor­
mation will always be available to the
driver and passengers.
- Always keep the Owner's literature handy
so that you can find it easily if you have
questions.
Safety equipment
The safety features are part of the occupant
restraint system and work together to help
reduce the risk of injury in a wide variety of
accident situations .
Your safety and the safety of your passengers
should not be left to chance. Advances in
technology have made a variety of features
available to help reduce the risk of injury in an
Driving Safely 121
accident. The following is a list of just a few of
the safety features in your Audi :
- sophisticated safety belts for driver and all
passenger seating positions,
- belt force limiters for the front seats,
- belt pretensioners for the seats,
- head restraints for each seating position,
- front airbags,
- side airbags in the front seats,
- special LATCH anchorages for child re-
straints,
- adjustable steering column.
These individual safety features, can work to­
gether as a system to help protect you and
your passengers in a wide range of accidents.
These features cannot work as a system if
they are not always correctly adjusted and cor­
rectly used.
Safety is everybody's responsibility!
Important things to do before driving
Safety is everybody's job! Vehide and occv­
pant safety always depends on the informed
and careful driver.
For your safety and the safety of your passen­
gers,
before driving always:
.,. Make sure that all lights and signals are op ­
erating correctly .
"' Make sure that the tire pressure is correct.
.,. Make sure that all windows are clean and
afford good visibility to the outside.
.,. Secure all luggage and other items carefully
r=)page 66.
.,. Make sur e that nothing can interf ere with
the pedals .
.,. Adjust front seat, head restraint and mir­
rors correctly for your height.
.,. Instruct passengers to adjust the head re­
straints according to their height .
"' Make sure to use the right child restraint
correctly to protect children
r=) page 161,
Child Safety.
.,. Sit properly in your seat and make sure that
your passengers do the same
r=) page 61,
Seats and storage.
ll>
•
•

122 Driving Safel y
• Fasten your safety belt and wear it proper ly.
Also instruct your passengers to fasten their
safety belts proper ly ¢
page 132.
What impairs driving safety?
Safe driving is directly related to the condi­
tion of the vehicle, the driver as well as the
driver's ability to concentrate on the rood
without being distracted.
The driver is responsible for the safety of the
vehicle and all of its occupants. If your ability
to drive is impaired, safety risks for everybody
in the vehicle increase and you also become a
hazard to everyone else on the road ¢
.&,.
Therefore:
• Do not let yourself be distracted by passen­
gers or by using a cellular telephone.
• NEVER drive when your dr iving ability is im­
paired (by medicat ions, alcohol, drugs, etc.) .
• Observe all traffic laws, rules of the road
and speed limits and plain common sense .
• ALWAYS adjust your speed to road, traff ic
and weather condit ions.
• Take frequent breaks on long trips . Do not
drive for more than two hours at a stretch .
• Do NOT drive when you are tired , under
pressure or when you are stressed.
A WARNING , .
Impaired driving safety increases the risk
of serious personal injury and death when­
ever a vehicle is being used .
Proper occupant
seating positions
Proper seating position for the driver
The proper driver seating position is impor­
tant for safe, relaxed driving.
Fig. 132 Correct seat ing posit ion
For your own safety and to reduce the risk of
injury in the event of an accident, we recom­
mend that you adjust the driver's seat to the
following position:
• Adjust the driver's seat so that you can easi­
ly push the pedals all the way to the floor
while keeping your knee(s) slightly bent
¢.&, .
• Adjust the angle of the seatback so that it is
in an upr ight position so that your back
comes in full contact with it when you drive.
• Adjust the steering whee l so that there is a
distance of at least 10 inches (25 cm) be­
tween the steering wheel and your breast
bone ¢
fig. 132. If not possible, see your au­
thorized Audi dealer about adaptive equip­ ment.
• Adjust the steering wheel so that the steer­
ing wheel and airbag cover points at your
chest and not at your face .
• Grasp the top of the steering whee l with
your elbow(s) slightly bent.
• Applies to veh icles with adjustable head re­
straints: Adjust the head restraint so the up­
per edge is as even as possible with the top
of your head.
If that is not possible, try to
adjust the head restraint so that it is as
close to this posit ion as possible.
• Fasten and wear safety belts correctly
¢page 135.

128 Driving Safely
area because the rear lid cannot be fully
closed.
- If you absolutely must drive with the rear
lid open, observe the following notes to
reduce the risk of poisoning:
- Close all windows,
- Close the power top,
- Open all air outlets in the instrument
panel,
- Switch off the air recirculation,
- Set the fresh air fan to the highest
speed.
A WARNING
Always make sure that the doors, all win­
dows, the power top and the rear lid are
securely closed and locked to reduce the
risk of injury when the vehicle is not being
used .
-After closing the rear lid, always make
sure that it is properly closed and locked .
- Never leave your vehicle unattended es ­
pecially with the rear lid left open. A
child could crawl into the vehicle through
the luggage compartment and close the
rear lid becoming trapped and unable to
get out. Being trapped in a vehicle can
lead to serious personal injury.
- Never let children play in or around the
vehicle.
- Never let passengers ride in the luggage
compartment. Vehicle occupants must
always be properly restrained in one of
the vehicle's seating positions.
(D Tips
- Air circulation helps to reduce window
fogging. Stale air escapes to the outside
through vents in the trim panel. Be sure
to keep these slots free and open.
- The tire pressure must correspond to the
load. The tire pressure is shown on the
tire pressure label. The tire pressure la­
bel is located on the driver's side B-pillar.
The tire pressure label lists the recom­
mended cold tire inflation pressures for
the vehicle at its maximum capacity
-
'
weight and the tires that were on your
vehicle at the time it was manufactured.
For recommended tire pressures for nor­
mal load conditions, please see chapter
r::::>page 231.
Tie-downs
Applies to vehicles: with tie-downs
The luggage compartment is equipped with
four tie-downs to secure luggage and o ther
items.
Use the tie-downs to secure your cargo prop­
erly
r::::> page 12 7, Loading the luggage com­
par tmen t.
In a collision, the laws of physics mean that
even smaller items that are loose in the vehi­
cle will become heavy missiles that can cause
serious injury. Items in the vehicle possess en­
ergy which vary with vehicle speed and the
weight of the item . Vehicle speed is the most
significant factor.
For example, in a frontal collision at a speed
of 30 mph (48 km/h), the forces acting on a 10-lb (4 .S kg) object are about 20 times the
normal weight of the item . This means that
the weight of the item would suddenly be about 200 lbs. (90 kg). You can imagine the
injuries that a 200 lbs. (90 kg) item flying
freely through the passenger compartment could cause in a collision like this.
A WARNING
Weak, damaged or improper straps used
to secure items to tie-downs can fail dur­ ing hard braking or in a collision and cause
serious personal injury.
- Always use suitable mounting straps and
properly secure items to the tie-downs in
the luggage compartment to help pre­
vent items from shifting or flying for­
ward as dangerous missiles.
- When the rear seat backrest is folded
down, always use suitable mounting
straps and properly secure items to the
tie-downs in the luggage compartment
to help prevent items from flying

192 Trailer towing
Tire pre ss ure
When towing a trai le r, inflate the t ires of your
vehicle to the co ld tire pressure listed under
"Full load" on the label located on the driver 's
side B-pillar (visible when the door is open).
Inflate trailer tires to trailer and tire manufac ­
turers' specifications.
Light s
The headlight settings should be checked with
the trailer attached before dr iving off. Check
to make sure both vehicle and tra iler lights
are working properly.
Saf ety chains
Be sure tra iler sa fe ty cha ins a re p roperly con­
nected from the trailer to the hitch on the ve ­
hicle. Leave eno ugh slack in the chains to per ­
mit turning corners. When you install safety
cha ins, make sure they w ill not drag on the
road when you are driving.
The chains shou ld cross under the trai ler
tongue to prevent it from dropping in case of
separation from the hitch.
Driving instructions
Driving with a trailer always requires extra
care and consideration.
To obtain the best possible handling o f vehicle
and trai ler, p lease note the following:
.,. Do not tow a loaded tra iler whe n your car it ­
self is no t loaded .
.,. Be especia lly careful when passing other
vehicles .
.,. Observe speed limits .
.,. Do not drive at the maximum permissible
speed.
.,. Always apply brakes early .
.,. Monitor the temperature gauge.
Weigh t di stribution
Towing a loaded trai ler with an empty car re­
sults in a highly unstable distribution of
weight . If this cannot be avo ided, drive at very
low speeds only to avoid the risk of losing
steer ing control. A "ba
lanced' ' rig is easier to operate and con­
trol. This means that the tow vehicle should be loaded to the extent possible and permissi­
ble, while keep ing the trai ler as light as possi­
ble under the c ircumstances. Whenever poss i­
ble, transfer some cargo to the luggage com ­
partment of the tow veh icle while obse rving
tongue load requ irements and vehicle load ing
considerations.
Speed
The higher the speed, the more d iff icu lt it be­
comes for the driver to control the rig. Do not
drive at t he maximum permissible speed. Re­
duce your speed even more if load, weather or
wind conditions are unfavorable -pa rtic ularly
whe n going downhill.
Reduce veh icle speed
immediately if the trail­
er shows the slightest s ign of sway ing.
Do n ot
try to sto p th e swaying by acc elerating .
Observe speed limits. In some areas, speeds
fo r vehicles tow ing tra ile rs a re lower than for
regular veh icles .
Always apply brakes early. When driving downh ill, shift into a lower gear to use the en ­
gine braking effect to slow the vehicle . U se of
the brakes alone can cause them to overheat
and fail.
Coolant tempe rature
The coo lant temperature gauge c> page 10
must be observed carefu lly. If the needle
moves close to the upper end of the scale, re­
duce speed immediately and/or turn off the
air conditioner.
If the coolant temperature warning light •
i n t he i nstrument cluster starts flashing, pull
off the road, stop and let the engine
idle for
abo ut two min utes to prevent he at build-up .
_& WARNING
Anyone not proper ly restra ined in a mov ­
i ng vehicle is a t a much greater risk in an
accident . Never let anyone ride in yo ur car
who is not p roperly wea ring the rest raints
prov ided by Audi.
-

196 Cleaning and protection
-Never use sponges designed to remove
insects, or any kitchen scouring sponges
or similar products. They can damage
your paint finish .
- Never use a dry cloth or sponge to clean
the headlights. Only use wet cloths or
sponges to prevent scratches .
It is best
to use soapy water.
- You should remove debris (such as in­
sects) from the headlight lenses on a
regular basis, for example when refuel­
ing your vehicle. Never use a dry cloth or
sponge to clean the headlights . Only use
wet cloths or sponges to prevent
scratches.
It is best to use soapy water.
@ For the sake of the environment
Only wash the vehicle in facilities specially
designed for that purpose. This will reduce
the risk of dirty water contaminated with
oil from entering the sewer system. In
some areas, washing vehicles outside of
these facilities is prohibited.
Washing your vehicle with a power
washer
Cleaning the exterior of your car with a high­
pressure power washer is safe as long as you
observe a few simple rules.
.. Before using the power washer, make sure
you have read and understood the WARN­
INGS¢
A in General information on
page 194 .
• Always follow the operating instructions for
the power washer .
• Make sure that the jet on the spray hose
produces a "fan shaped spray".
• Do
not hold the spray nozzle too close to
soft materials.
Never use a power washer to clean the power
top itself.
Keep a distance from soft materials such as
rubber hoses or insulating material as well as
sensors and camera lenses. When cleaning the vehicle with a power wash­
er
always follow the operating instructions.
This applies particularly to the operating pres­
sure and the spraying distance. Do not point
the spr ay directly at the seals around the side
windows, around the doors, on the rear lid or on the power top . Likewise, do not point it di­
rectly at tires, rubber hoses, insulation mate­
rial or sensors
¢page 198. Hold the spray
nozzle at least 1.3 ft (0 .4 m) away from the
vehicle.
Do not use a high-pressure power washer to
remove snow and ice .
Do not use a jet which sprays water in a direct
stream or one that has a rotating jet.
Water temperature should not exceed 140 °F
(60 °().
A WARNING "'--
Never wash tires with a jet that sprays wa -
ter in a direct stream . This could cause in­
visible damage to the tires and weaken
them, even if the spray is from a relatively
long distance and for a short time. Dam­
aged and weakened tires can fail and cause
accidents and personal injury.
(D Note
- Never use a power washer to clean the
power top itself.
- To avoid damaging your vehicle, always
make sure that there is sufficient dis­
tance between the spray head and soft
materials like rubber hoses, plastic parts
and sound-deadening materials as well
as sensors and camera lenses. Never aim
the spray head at the same point for a
long time . This also applies to cleaning
headlights and painted bumpers. Re­
member: the closer the nozzle is to the
surface of the material , the greater the
stress on the material.

Tires and wheels
Tires
General notes
Tires may be the least appreciated and most
abused parts of a motor vehicle .
Tires may be the least appreciated and most
abused parts of a motor vehicle . Tires are,
however, one of the most important parts of a
vehicle, particularly considering the compara­
tively small patch of rubber on each tire that
assures that a ll- important contact between
you, your vehicle and the road.
Maintaining the correct tire pressure, mak ing
sure that your vehicle and its tires do not have
to carry mo re weight than they can safely han­
d le, avoiding damage from road hazards and
r eg ularly inspect ing t ires for damage i nclud­
ing cuts, slashes irregu la r wear and ove rall
condition are the most important things that
you can do to he lp avoid sudden tire failure in­
cluding tread separat ion and blowouts.
A voidin g damage
If you have to d rive over a curb or similar ob­
stacle, drive very slow ly and as close as possi ­
b le at a right angle to the curb.
A lways keep chemicals includ ing grease, o il ,
gasoline and brake fluid off the t ires .
I nspect the t ires regularly for damage (cuts,
cracks or b listers, etc.). Remove any fo reign
bod ies embedde d in the treads.
Storing tires Mark tires when you remove them to indicate
the direction of rotation . T his ensures you to
be ab le to mount them correctly when you re­
i nstall them .
When removed, the wheels or t ires should be
sto red in a cool, d ry and preferably dark place .
Store tires in a vertical pos ition if they are not
mounted on rims, in a horizontal pos it ion if
they are mounted on rims .
Tires an d wheel s 22 7
New tires
New ti res have to be broken in¢& .
The tread depth of new t ires may vary, accord­
ing to the type a nd make of t ire and the tread
patte rn.
H idden damage
Damage to tires and r ims is ofte n not readily
visible . If you notice unusual v ib rat ion or the
vehicle pulls to one s ide, th is may ind icate
that one of the t ires has been damaged . T he
ti res m ust be chec ked immed iate ly by an au­
thorized Audi dea le r or q ua lified wor kshop .
Unidirectional tires
A un idirectional tire can be identified by ar­
rows on the sidewa ll, that po int in the direc­
tion the t ire is designed to rotate. You mus t
f ol low the specified di rection o f rotation . T his
is necessary so that these tires can develop
their optimum characteristics regarding grip, road noise, wear and hydrop laning resistance.
For more information ¢
page 254.
A WARNING
New tires or t ires that are o ld, worn or
damaged cannot provide maximum con­
trol and braking ability .
-
-New tires tend to be slippery and must
also be b roken-in. To reduce the risk of
losing control, a collision and serious
pe rsonal injuries, drive w it h special care
for the first 350 miles (560 km).
- Driving with worn or damaged tires can
lead to loss of control, sudden tire fail­
ure, including a blowout and sudden de­
fl ation, cras hes and se riou s personal in­
juries . Have worn or damaged t ires re­
placed immediate ly.
- Ti res age even if they are not being used
and can fai l sudden ly, especially at hig h
speeds. Tires that are more than 6 years
old can only be used in an emergency
and then w ith special care and at low
speed.
•
•

228 Tire s and wheel s
-Never mount used tires on yo ur vehicle if
you are not sure of their "previous histo­
ry." Old used tires may have been dam­
aged even though the damage cannot be
seen that can lead to sudden t ire failure
and loss of vehicle control.
- If you notice unusual vibration or if the
vehicle pulls to one side when driving, al­
ways stop as soon as it is safe to do so
and check the wheels and tires for dam­
age.
(D Note
Please note that summer and winter tires
are designed for the cond itions that are
Glossary of tire and loading terminology
Accessory weight
means t he comb ined we ight (in excess of
those sta ndard items which may be rep laced)
of au toma tic tra nsmission, power steer ing,
power brakes, power windows, power seats,
radio, and heater, to the extent that th ese
items are availab le as factory -installed equip­
ment (whether installed or not) .
Aspect ratio
means t he ratio of the he ight to the w idth of
the tire in percent . Numbers of 55 or lower in ­
dicate a low sidewall for improved steering re­
sponse and better overall handling on dry pavement .
Bead
means the part of the ti re that is made of
steel wires, wrapped or reinforced by ply cords
and that is shaped to fit the rim.
Bead separation
means a b reakdown of the bond between
components in the bead.
Cord
means the strands forming the plies in the
tire . typ
ica l in those seasons . Audi recommends
using winter tires during the winter
months . Low temperatures signif icant ly
decrease the e lasticity of summer tires,
which affects tract ion and brak ing ability.
If summer tires are used in very co ld tem­
peratures, cracks ca n form on the tread
bars, res ulting in permanent tire damage
that can cause loud driving no ise and un­
balan ced t ires. Audi is not responsible for
th is type of damage .
Cold tire inflation pressure
means the tire p ressu re recommended by t he
vehicle manufacturer fo r a tire of a des igna ted
s iz e that has not bee n driven for more than a
coup le of miles (k ilometers) at low speeds in
t h e three hour period before the tire pressure
is measured or adjusted.
Curb weight
mea ns the we ight of a motor ve hicl e w ith
standard equipment including the max imum
capacity of fuel, oil, and coolant, air condi ­
tioning and additional weight of optiona l
equipment.
Extra load tire
me ans a t ire design to operate at higher loads
and at h igher inflation pressures than the cor­
responding standard tire . Extra load tires may
be identified as "XL", "x l" , "EXTRA LOAD", or
"RF" on the sidewall.
Gross A xle Weight Rating ("GAWR ")
means the lo ad -c a rry ing c apac ity of a s ingle
axle system , measured a t the tire-ground in­
terfaces.
Gross Vehicle Weight Rating ("GVWR ")
mea ns the maximum total loaded we ight of
t h e ve hicl e. .,.