tire pressure AUDI A6 2013 Owners Manual

14 Instrum ent s and w arn ing /indic ato r light s
Canada models:
[I]
Anti-lock braking system (ABS)
defective ./
¢ page20
•
Worn brake pads
¢ page20
:rm
Electromechanical parking brake
¢ page 74
g
Tire pressure monitoring system
./
¢page258
Tire pressure monitoring system
••w;~, ¢ page258
Im
Electronic power control ./
¢ page 21
I Malfunction indicator Lamp (MIL)
111!
./
¢ page21
.,
Engine speed limitation
¢ page 21
I.
Engine oil level
¢ page 18
•
Engine oil sensor
¢ page 21
&1
Battery
¢ pagel7
Ill
Tank system
¢page 21
•
Windshield washer fluid level
¢page22
m
Windshie ld wipers
¢ page22
!I
Remote control key
¢page 71
m
Remote control key
¢ page 74
I!
Battery in remote control key
¢ page32
-.
l:J
Defective ligh t bulb warn ing
¢ page22
II
Rear fog light(s)
¢page22
II
Headlight range control
¢page22
- -
Ill
adaptive light *
¢page22
m
Light -/rain sensor faulty
¢ page 22
- -
•
Audi active lane assist *
¢page92
Im
T ransmission
¢ page 110
Im
Transmission
¢page 110
R1
Transmission
- S t ron ic ® ¢ page 110
•
Electronic steering column lock
¢page 18
- -
.,
Engine start system
¢page 18
£1.p
Electromechanical steering
¢page 196
•
Air suspens ion*
¢ page 18
Ill
Sport differential *
¢page22
Other indicator lights
II
II
I : I -._ I• 11
Turn signals ¢ page 23
USA model s: Cruise control *
¢page
79
,,_
...

-Never exceed the maximum permissible
load carry ing capacity of the roof of your
vehicle, the permissible axle weights and
the permissible total weight of your vehi­ cle
c;, page 280, Weights.
@ For the sake of the environment
As a result of the increased wind resist­ance created by a roof rack, your vehicle is
using fue l unnecessarily. So remove the
roof rack after using it.
Luggage compartment
Loading luggage compartment
Luggage items must be stowed securely.
Fig. 62 Place heavy objects as far forward as possib le.
Not e the following to preserve the vehicle's
good handling characteristics.
.. Distribute the load as evenly as possible.
.. Place heavy objects as far forward as possi ­
ble
c;, fig. 62 .
.. Secure luggage items with the cargo net* or
with non-elastic retaining straps to the tie­ down rings*
c;, page 62.
A WARNING
- Loose objects in the luggage compart­
ment can slide about suddenly and alter
the vehicle's handling characterist ics.
- Loose objects in the passenger compart­
ment can fly forward during abrupt ma­
neuvers or accidents and injure occu­
pants.
Seats and storage 61
-Always store objects in the luggage com­
partment and use suitable straps, partic­
ularly with heavy objects.
- When you transport heavy objects, al­
ways remember that a change in the cen­
ter of gravity may result in a change in
the vehicle's handling characteristics.
- Follow all warnings
c;, page 126, Driving
Safely.
(D Tips
The tire pressure must be adjusted to the
load - see the t ire pressure sticker located
on the driver's side 8-pillar.
Enlarging cargo capacity of the vehicle
interior
The seat backs can be folded forward to en­
large the cargo capacity.
Fig. 63 Release handle on th e seatback
Folding the seatback forward
.. When you pull the release lever @ ¢ fig. 63
in the direction of the arrow, the safety knob
@ pops out far enough for the red marking
on knob to be visib le .
.. Fold the seatback forward.
Raising the seatback
.. Raise the seatback until it is securely la tch­
ed
c;, ,&_ . When you can no longer see the
red mark on the safety knob@, the seat is
latched.
When the seatback is latched in its upright
position, it can be locked and unlocked w ith
the mechanical key
c;, page 32 next to the re-
leas e handle @c>
fig. 63. This prevents any ...,

126 Driving Saf ely
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, a irbags, ch ild restra ints as
well as child safety. Your safety is for us
priori­
ty number 1.
Always observe the info rmat ion
and warn ings in th is sect ion -fo r yo ur own
safety as well as that of your passengers .
The information in this se ction app lies to all
model ve rsions of your veh icle . Some of the
feat ures described in this sec tions 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
struct ions and heed the WARNINGS in
this Manual. It is in your interest and in
the inte rest of you r passengers.
- Always keep the complete Owner's Liter­
ature in your Audi when you lend or sell
your vehicle so that this important info r­
mation will always be ava ilable to the
dr iver and passengers.
- Always keep the Owner's literature handy
so that you can find i t eas ily if you have
ques tions.
Safety equipment
The safety features are part of the occupant
restraint system and work together to help
redu ce the risk of injury in a wide variety of
accident situations.
Your safety and the safety of your passenge rs
should not be left to chance. Advances in
technology have made a varie ty o f fea tures
avai la bl e to he lp re duce the risk of injury in an accident
. The following is a list of just a few of
the safety features in your Audi:
- sophis tic ated s afety be lts fo r drive r and a ll
passenger sea ting pos it ions,
- safety belt prete nsioners ,
- safety belt force lim iters fo r the front seats,
- safety belt he ight adjustment systems for
the front seats ,
- front airbags,
- knee airbags for the front seats *
- side airbags in the front seats a nd outer rear
seats*,
- side curtain airbags ,
- specia l LATCH anchorages for child re-
straints,
- hea d restr aints for each sea ting pos ition,
- ad justab le s teer ing colum n.
These ind iv idual safety features, can work to­
ge ther as a system to help protect you and
you r passengers in a wide range of accidents .
T hese features canno t wo rk as a system if
they are not always cor re ct ly adjusted and co r­
rect ly used.
Safety i s everybody' s respon sibility!
Important things to do before driving
Safety is everybody 's job! Vehicle and occu ­
pant safety always depends on the informed and careful driver .
For your safety and the safety of your passen ­
gers,
befor e driv ing always:
.. Make s ure that all lig hts and signa ls are op­
erating correctly.
.. Make sure that the tire pressure is correct .
.. Mak e sur e that all windows are clean and
afford good v is ibility to the outside .
.. Se cu re a ll luggage a nd o ther items carefu lly
<:!) page 61, ¢page 58.
.. Ma ke s ure that noth ing can interfere wi th
the peda ls .
.. Adjust front seat, head restraint and mir­
rors correctly for your height.
.. Instruct passengers to adjust the head re-
straints according to the ir height . .,..

.. Make sure to use the right child restraint
correct ly to protect children
Q page 171,
Child Safety.
.. Sit properly in your seat and make sure that
your passengers do the same¢
page SO,
General recommendations .
.. Faste n your safety belt and wear it properly.
Also instruct your passengers to fasten their
safety belts properly ¢
page 136.
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 road
without being distracted.
The driver is respons ible for the safety of the
veh icle and all of its occupants.
If your ability
to drive is impai red, safety r isks for everybody
in the vehicle increase and you also become a
hazard to everyone else on the road ¢ _&. .
Therefore:
.. Do not let yourself be dist racted by passen­
gers or by using a cellular telephone.
.. NEVER drive when your driving ability is im ­
paired (by medications, alcohol, drugs, etc.).
.. Observe all traffic laws, rules of the road
and speed limits and plain common sense .
.. ALWAYS adjust your speed to road, traffic
and weather conditions .
.,. 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.
Driving Safely 12 7
Proper occupant
seating positions
Proper seating position for the driver
The proper driver seating position is impor­
tant for safe, relaxed driving .
Fig. 143 Correct seat ing pos it 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
follow ing pos ition:
.. Adjust the driver's seat so that you can easi­
ly push the pedals all the way to the floor
wh ile 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 w ith it when you drive.
.. Adjust the steering wheel so that there is a
distance of at least 10 inches (25 cm) be­
tween the steering wheel and yo ur breast
bone
Q fig. 143. If not possible, see your au ­
thorized Audi dealership about adaptive
equipment .
.. Adjust the steer ing 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 vehicles with adjustable head re­
straints: Ad just 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 be lts correctly
¢ page 139. .,.

A WARNING ,~
To help prevent poisonous exhaust gas
from being drawn into the vehicle, always
keep the rear lid closed while driving .
- Never transport objects larger than
those fitting completely into the luggage
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 roof*,
- 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 roof* 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.
Gj) 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 .
-
Driving Safely 133
-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
~page 244.
Tie-downs
The luggage compartment is equipped with
four tie-downs to secure luggage and other
items.
Use the tie-downs to secure your cargo prop­
erly<>
page 132, Loading the luggage com­
partment.
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 (4.5 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
'
•
•

Make sure that the cooling system has enough
f luid .
Tire pressure
When tow ing a trai ler, inflate the t ires of your
vehicle to the cold 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 trai ler and tire manufac­
turers' specifications.
Lights
Check to make sure both veh icle and trailer
lights are working properly.
Safety chains
Be sure tra iler safety cha ins are properly con­
nected from the trailer to the hitch on the ve­
hicle. Leave enough slack in the chains to per ­
mit turning corners . When you install safety
chains, make sure they wi ll not drag on the
road when you are driving.
The chains should cross under the tra ile r
tongue to prevent it from dropping in case of
sepa ration from the hitch.
Adjusting the Audi drive select
Make sure the veh icle is on a level surface be­
fore hitching up the tra iler and before adjust­
in g the tongue weight. The vehicle must be in
auto or comfort dr iving mode and not raised
qpage 98, q(D .
Make sure that the vehicle is lowe red. In Info­
tainment, se lect:
ICARI f u nction button> Low­
er
control button.
If you must drive under poor road condit ions,
you can raise the veh icle
after coupling the
traile r or
after adjusting the tongue weight
qpage 100.
- Changes in temperatu re or load can af­
fect the height of the veh icle.
- Always se lect
auto or comfort mode.
Otherwise, the tongue load spec ified for
you r vehicle will no longer be applicable.
Trailer towing
Driving instructions
Driving with a trailer always requires extra
care and consideration .
To obtain the best possible handling of vehicle
and trailer, please note the following:
... Do not tow a loaded trailer when your car it­
self is not loaded.
... Be especially careful when passing other
veh icles.
... Observe speed lim its .
... Do not dr ive at the maximum permissible
speed.
... Always apply brakes early .
... Monitor the temperature gauge.
Weight distribution
Towing a loaded trailer with an empty car re­
sults in a highly unstable distribution of
weight. If this cannot be avoided, drive at very low speeds only to avoid the risk of losing
steering control.
A "balanced" 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 keeping the trailer as light as possi­
ble under the circumstances. Whenever possi­
ble, transfer some cargo to the luggage com­
partment of the tow vehicle while observing
tongue load requirements and vehicle loading
considerations.
Speed
The higher the speed, the more difficult it be­
comes for the driver to contro l the rig. Do not
drive at the maximum permissible speed. Re­
duce your speed even more if load, weather or
wind conditions are unfavorable -particularly
when going downhill.
Reduce vehicle speed
immediately if the trail­
er shows the slightest sign of swaying.
Do not
try to stop the swaying by accelerating.
Observe speed limits. In some areas, speeds
for vehicles towing trailers are lower than for
regular vehicles. .,.
205
•
•

210 Cleaning and protec tio n
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 clean the head­
lights w ith a dry cloth or sponge. Use a
wet cloth or sponge. It is best to use
soapy water .
@) For the sake of the environment
Only wash the vehicle in facilit ies specially
designed for that purpose. Th is w ill reduce
the risk of d irty water contaminated w ith
oil from entering the sewer system . In
some areas, wash ing vehicles outs ide of
these facilities is prohib ited.
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 w asher , make sure
yo u have read and understood the WARN­
INGS
q A in General information on
page 208.
• Always fo llow the operating instructions for
the power washer.
• Make sure that the jet o n the spray hose
produces a "fan shaped spray" .
• Do
not hold the spray nozzle too close to
soft materia ls .
Keep a d istance from soft materials such as
rubber hoses or insulat ing mater ial as we ll as
sensors and camera lenses.
When cleaning t he vehicle wit h a power wash­
er
always fo llow the operating instructions .
This applies particularly to the operating pres­
sure and the spraying distance . Do not po int
the spray direc tly at the sea ls around the s ide
windows, aro und t he doors, on the re ar lid or
on the sunroof* . Likew ise, do not point it di­
rectly at tires, r ubber hoses, ins ulation mate­
rial or sensors
q page 211. Hold the spray nozzle at least 1.3 ft (0.4 m) away from the
vehicle.
Do no t use a high-pressu re power was her to
remove snow and ice .
Do not use a jet which sprays water in a d irect
st ream o r one that has a rotating je t.
Water temperature should not exceed 140 °F
(60 °() .
A WARNING ,..__
Neve r wash t ires with a jet that sprays wa­
ter in a direct stream. This could cause in­
v is ible d amage to the t ires and weaken
them, even if the spray is from a relative ly
l ong distance and for a short time . Dam ­
aged and wea kened tires can fail a nd cause
accidents and personal in jury.
(D Note
To avoid damaging yo ur vehicle, a lw ays
make sure tha t the re is sufficien t distance
between the spray head and soft materia ls
li ke rubber hoses, plast ic parts and sound ­
deaden ing mater ia ls as well as sensors
and camera lenses. Never a im the spray
head at the same point fo r a long time.
This also app lies to cleaning headlights
and paint ed bumpers . Remembe r: t he
closer the no zzle is to the surfa ce of the
m at erial , the gre ater t he s tress on the ma ­
terial.
Caring for vehicles with matte finish
paint
Applies to vehicles: wit h matte finish paint
Vehicles with matte finish paint require spe ­
cial care due to the characteristics of the
paint.
Washing by hand
T o avoid damaging the pain t when was hing,
fi rst remove dust and la rge particles from
yo ur vehicle . Insects, grease spots and finger­
prints are best removed with a
special cleaner
for matte finish pa int .
1111>

24 0 T ire s and wheel s
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
tive ly small patch of rubber on each tire that
assures that all -impo rtant 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 safe ly han­
d le, avoiding damage from road hazards and
reg ularly inspecting t ires for damage includ­
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 separation and blowouts.
A voidin g damage
I f you have to drive over a curb or similar ob­
stacle, drive very s low ly and as close as possi ­
b le at a right angle to the curb.
A lways keep chem ica ls includ ing grease, o il,
gasoline and b rake fluid off the ti res.
Inspect the t ires regularly for damage (cuts,
cracks or b listers, etc.). Remove any fo reign
bod ies embedded in the treads.
St oring tires
Mark tires when you remove them to indicate
the direction of rotation . Th is ensures you to
be ab le to mount them correctly when you re­
install t hem.
When removed, the wheels or t ires should be
stored in a cool, dry 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. New tire
s
New t ires have to be broken in¢&,. .
T he tread depth of new t ires may vary, accord­
ing to the type a nd make of t ire and the tread
pa tte rn .
Hidden damage
Damage to tires and r ims is often not readily
vis ible . If you notice unusual v ibrat ion or the
vehicle p ulls to one side, th is may ind icate
that one of the t ires has been damaged . Th e
t ir es m ust be checked immed iate ly by an au ­
tho rized Aud i dea le r or q uali fied wor kshop.
Unidirectional t ires
A un idirectional tire can be identified by ar­
rows on the sidewa ll, that po int in the direc­
t ion the t ire is designed to rotate. You must
fol low the specified d irection of rotation . This
is necessary so that these tires can develop
their optimum characteristics regarding grip, road no ise, wear and hydrop laning resistance.
For more information ¢
page 268.
A WARNING
-New tires or tires that are old, worn or
damaged cannot provide maximum con­
trol and braking ability .
-
-New tires tend to be slippery and must
be broken in . To reduce the risk of losing
control, a co llision and ser ious personal
in jur ies, d rive w ith special ca re fo r the
fi rst 350 m iles (560 km).
- Driving with worn or damaged tires can
lead to loss of control, sudden tire fail­
ure, including a blowou t and sudden de­
fl ation, c rashes and seriou s personal in­
juries . Have wo rn or damaged t ires re­
p laced immediate ly .
- T ires age even if they are not being used
and can fai l sudden ly, especially at high
speeds. Tires that are more than 6 years
old can only be used in an emergency
and then w ith specia l care and at low
speed.

-Never mount used tires on yo ur vehicle if
yo u 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 tire failure
and loss of vehicle control.
- If you notice unusual vibration or if the
vehicle pulls to one side when d riving, 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 summe r and wi nte r tires
are designed for the cond itions that are
Glossary of tire and loading terminology
Accessory weight means the comb ined weight (in excess of
those sta ndard items which may be rep laced)
of au toma tic transmission, power steer ing ,
power brakes, power windows, power seats,
radio, and heater, to the extent that these
items are availab le as factory-installed equip­
ment (whether installed or not) .
Aspect ratio
means the rat io o f the height 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 overa ll handling on dry
pavement .
Bead
means the part of the t ire t hat is made o f
steel wires, wrapped or reinforced by ply cords
and that is shaped to fit the r im.
Bead separation
means a b reakdown of the bond between
components in the bead .
Cord means the strands forming the plies in the
tire.
Tire s an d wheel s 241
typica l in those seasons . Aud i recommends
using winter tires during the winter
months . Low temperatures signif icant ly
dec rease the e lasticity of summer t ires,
which affects tract ion and brak ing ability.
If summer t ires are used i n very co ld tem ­
peratures, cracks ca n form o n the tread
bars , res ulting in perma nen t tire damage
that can cause loud driving noise and un­
bala nced ti re s. Audi i s not respon sible for
th is type of damage .
Cold tire inflation pressure
means the t ire p ress ure recommended by t he
vehicle manufacture r fo r a tire o f a des ignated
s ize t hat has not bee n driven for more than a
coup le o f miles (k ilometers) at low speeds in
the three hour period before the tire press ure
is m easured or adjusted.
Curb weight
me ans the we ight of a motor ve hicle with
st andard equipmen t incl ud ing the max imum
capacity of fuel, oi l, and coolant, air condi ­
tioning and additional weig ht of optiona l
equipment.
Extra load tire
means a t ire design to oper ate a t higher load s
and at higher inflation pressures than the cor­
responding standa rd tire . Extra load tires may
be identified as "XL", "x l", "EXTRA LOAD", o r
"RF" on the sidewal l.
Gross Axle Weight Rating ("GAWR")
me ans the load-ca rry ing capac ity of a single
axle system , measured at the tire -ground in­
te rfaces.
Gross Vehicle Weight Rating ( "GVWR ")
mea ns the maximum total loaded we ight of
the ve hicl e. .,..
•
•

242 Tire s and wheels
Groove
means the space between two adjacent tread
ribs .
Load rating (code)
means the maximum load that a tire is rated
to carry for a given inflation pressure. You
may not find this informat ion on all tires be­
cause it is not req uired by law.
Maximum load rating
means the load rating for a t ire at the max i­
mum permissible inflation pressure for that
tire.
Maximum loaded vehicle weight
means the sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity we ight, and
(d) Production options weight
Maximum (permissible) inflation pressure
means the maximum cold inflation pressure
to which a tire may be inflated. Also called
"maximum inflation pressure ."
Normal occupant weight
means 150 lbs. (68 kilograms) times the
number of occupants seated in the vehicle up
to the total seating capacity of your vehicle .
Occupant distribution
means distribution of occupants in a vehicle.
Outer diameter
means the overa ll diameter of an inflated new
tire.
Overall width
means the linear distance between the exteri­
ors of the sidewalls of an inflated tire, includ­
ing elevations due to labeling, decorations, or
protective bands o r ribs .
Ply
means a layer of rubber-coated parallel cords.
Production options weight
means the combined weight of those insta lled
regular production options weighing over 5
lbs. (2.3 kg) in excess of those standard items
which they replace, not previously considered
in curb weight or accessory we ight, including
heavy duty brakes, ride levelers, roof rack,
heavy duty battery, and special tr im .
Radial ply tire
means a pneumat ic tire in which the ply cords
that extend to the beads are laid at substan­
t ia lly 90 degrees to the center line of the
tread .
Recommended inflation pressure
see<=> page 241, Cold tire inflation pressure.
Reinforced tire
means a t ire design to operate at higher loads
and at h igher inflation pressures than the cor­
responding standa rd tire. Reinforced tires
may be identified as "XL" "xl" "EXTRA LOAD"
' ' '
or "RF" on the sidewa ll.
Rim
means a metal support for a tire or a tire and
tube assembly upon which the tire beads are
seated.
Rim diameter
means nom inal d iameter of the bead seat. If
you change your wheel s ize, you will have to
purchase new tires to match the new rim di­
ameter.
Rim size designation
means r im diameter and width .
Rim width
means nominal distance between rim flanges.
Sidewall
means that portion of a tire between the
t read and bead.