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General information
Appl ies to vehicles: with Audi side assist
®
®
©
Fig. 85 Driving si tuat ions
Fig. 86 Rear of the veh icle: pos ition of the sensors
Side assist functions at speeds above approxi
mately
19 mph (30 km/h).
@ Vehicles that are approaching
:'ll 0
0
::':,
"' m
In certain cases, a vehicle will be classified as
critical for a lane change even if it is still some
what far away. The faster a vehicle approaches,
the sooner the display in the exterior mirror will
turn on.
@ Vehicles traveling with you
Vehicles traveling with you are indicated in the
exterior mirror if they are classified as critical for
a lane change. All vehicles detected by side assist
Audi side assist
are indicated by the time they enter your "blind
spot", at the latest.
© Vehicles left behind
If you slowly pass a vehicle that side assist has
detected (the difference in speed between the
vehicle and your vehicle is less than 9 mph (15
km/h)), the display in the exterior mirror turns
on as soon as the vehicle enters your blind spot.
The display will not turn on if you quickly pass a
vehicle that side assist has detected (the differ
ence in speed is greater than 9 mph (15 km/h)).
Functional limitations
The radar sensors are designed to detect the left
and right adjacent lanes when the road lanes are
the normal width. In some situations, the display
in the exterior mirror may turn on even though
there is no vehicle located in the area that is criti
cal for a lane change. For example:
- If the lanes are narrow or if your are driving on
the edge of your lane. If this is the case, the
system may have detected the vehicle in anoth
er lane that is
not adjacent to your current lane.
- If you are driving through a curve. Side assist
may react to a vehicle that is one lane over
from the adjacent lane.
- If side assist reacts to other objects (such as
high or displaced guard rails).
- In poor weather conditions. The side assist
functions are limited.
Do not cover the radar sensors
~ fig. 86 with
stickers, deposits, bicycle wheels or other ob
jects, because this will affect the function. Do not
use side assist when towing a trailer. For infor
mation on cleaning, refer to ¢
page 168.
A WARNING
=
-Always pay attention to traffic and to the
area around your vehicle . Side assist cannot
replace a driver's attention. The driver alone is always responsible for lane changes and
similar driving maneuvers .
- Improper reliance on the side assist system can cause collisions and serious personal in-
-
Jury: ~
77
Wheels
(D Tires for passenger vehicles
(if applicable)
P indicat es a tire for a passenger
vehicle. T indicates a tire desig
nated for temporary use.
@ Nominal width
Nominal width of the tire be
tween the sidewalls in millime
ters. In general: the larger the
number, the wider the tire.
@ Aspect ratio
Height/width ratio expressed as a
percentage.
@ Tire construction
R indicates a radial tire.
® Rim diameter
Size of the rim diameter in inches.
@ Load index and speed rating
The load index indicates the tire's
load-carrying capacity.
The speed rating indicates the maximum permitted speed
¢ & in
W inter tires on page 206.
"EXTRA LOAD", "xl" or "RF" indi
cates that the tire is reinforced or
is an Extra Load tire.
Speed rat- Maximum permitted speed
ing
p
up to 93 mph (1 50 km/h)
Q up to 99 mph (160 km/h)
192
Speed rat- Maximum permitted speed
Ing
R
up to 106 mph (170 km/h)
s up to 110 mph (180 km/h)
T up to 118 mph (190 km/h)
u up to 124 mph (200 km/h)
H up to 130 mph (210 km/h)
V up to 149 mph (240 km/h)al
z above 149 mph (240 km/h)al
w up to 168 mph (270 km/h)al
y up to 186 mph (300 km/h)al
a) For tires above 149 mph (240 km/h),
tire manufact urers sometimes use the
code "ZR".
(j) US DOT number (TIN) and
manufacture date
The manufacture date is listed on
the tire sidewall (it may only ap
pear on the inner side of the tire):
DOT ... 2215 ...
means, for example, that the tire
was produced in the 22nd week of
the year 2015.
@ Audi Original equipment
tires
Audi Original equipment tires
with the designation "AO" or "RO"
have been specially matched to
your Audi. When used correctly,
these tires meet the h ighest
standards of safety and handling.
An authorized Audi dealer or au
thorized Audi Service Facility will .,..
be happy to provide more infor
mation.
® Mud and snow capability
"M/5" or "M+S" indicates the tire
has character istics that make it
suitable for driving on mud and
snow .
& indicates a winter tire.
@Composition of the tire cord
and materials
The number of plies indicates the
number of rubberized fabric lay
ers in the tire. In general: the
more layers, the more weight a
tire can carry . Tire manufacturers
must also specify the materials
used in the tire. These inc lude
steel, nylon, polyester and other
materials.
@ Maximum permitted load
This number indicates the max i
mum load in kilograms and
pounds that the tire can carry.
@ Uniform tire quality grade
standards for tread wear,
traction and temperature resistance
Tread wear, traction and temper
ature ranges ¢
page 207.
;:: @ Running direction 0 ::,
~
...
'° V, N
'° ...
The arrows indicate the running
direction of unidirectional tires .
Wheels
You must always follow the speci
fied runn ing d irect ion
¢ page 218 .
@ Maximum permitted
inflation pressure
This number indicates the maxi
mum pressure to which a tire can
be inflated unde r normal operat
ing condit ions.
Glossary of tire and loading
terminology
Accessory weight
means the comb ined weigh t (in
excess of those standard items
which may be replaced) of auto
matic transm ission, power steer
ing , power brakes, power win
dows, power seats, radio, and
heater, to the extent that these
items are available as facto ry-in
stalled equipment (whether in
stalled or not) .
Aspect ratio
means the ratio of the heigh t to
the width of the tire in percent .
Numbers of 55 or lowe r indicate a
low sidewa ll for improved steer
ing response and better overall
handling on dry pavement. .,.
193
... N 0 ::,
~
...
'° V, N
'° ...
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weigh t, and
(d) Production options we ight
Ma ximum (permissible)
inflation pressure
means the maximum cold infla
tion pressure to which a t ire may
be inflated. Also called "maxi
mum inflation pressure."
Normal occupant weight
means 150 lbs. (68 kilograms)
times the number of occupants
seated in the veh icle up to the to
tal seating capacity of your vehi c le.
Occupant distribution
means distribution of occupants
in a vehicle.
Outer diameter
means the overall diameter of an
inflated new tire.
Overall width
means the linear distance be
tween the exteriors of the side
walls of an inflated tire, including
elevations due to labeling, deco
rations, or protective bands or
ribs .
Wheels
Ply
means a layer of rubber-coated
parallel cords .
Production options weight
means the combined weight of
those installed regular production
options weighing over 5 lbs. (2.3 kg) in excess of those standard
items which they replace, not pre
viously considered in curb weight
or accessory weight, including
heavy duty brakes, ride levelers,
roof rack, heavy duty battery, and
special trim .
Radial ply tire
means a pneumatic tire in which
the ply cords that extend to the beads are laid at substantially 90
degrees to the centerline of the
tread.
Recommended inflation
pressure
see ~ page 194, Cold tire infla
tion pressure .
Reinforced tire
means a tire designed to operate
at higher loads and at higher in
flation pressures than the corre sponding standard tire. Rein
forced tires may be identified as .,.
195
Wheels
"XL" "xl" "EXTRA LOAD" or "RF" I I I
on the sidewall.
Rim
means a metal support for a tire
or a tire and tube assembly upon
which the tire beads are seated.
Rim diameter
means nominal diameter of the
bead seat . If you change your
wheel size, you w ill have to p ur
chase new tires to match the new rim diameter .
Rim size designation
means rim diameter and width.
Rim width
means nomina l distance between
rim flanges.
S idewall
means that portion of a tire be
tween the tread and bead .
Speed rating (letter code)
means the speed at which a tire is
designed to be driven for extend
ed periods of time. The rat ings
range from 93 mph (150 km/h)
to 186 mph (298 km/h)
¢ table
on page 192.
You may not find
this information on all tires be
cause it is not requ ired by law.
196
The speed rating letter code,
where applicable, is molded on
the tire sidewall and ind icates the
maximum permissible road
speeds
¢ .&. in Winter tires on
page 206.
Tire pressure monitoring system*
means a system that detects
when one or mo re of a vehicle's
tires are underinflated and illum i
na tes a low tire pressure warning
te lltale .
Tread
means that portion of a tire that
comes into contact w ith the road .
Tread separation
means pulling away o f the tread
from the t ire carcass .
Treadwear indicators (TWI)
means the projections within the
principal grooves designed to give
a visua l indication of the deg rees
of wear of the tread. Se e
¢ page 200, Tread wear indica
tor
fo r more informa tion on
measu ring t ire wear .
Wheels
and a special procedure. You must not repair or
disassemble them¢&. .
A WARNING
Wheel bolts that are tightened or repaired in
correctly can become loose and result in loss
of vehicle control, which increases the risk of
an accident. For the correct t ightening specifi
cation, refer to ¢
page 214, After changing a
wheel .
- Always keep the wheel bolts and the
threads in the wheel hub clean and free of grease.
- Only use wheel bolts that fit the rim .
- Always have damaged rims repaired by an
authorized Audi dealer or authorized Aud i
Service Facility . Never repair or disassemble
rims yourself, because this inc reases the risk
of an accident.
Winter tires
Winter tires s ignificantly improve the vehicle's
handling when driving in winter conditions . Be
cause of their construction (width, compound,
tread pattern), summer tires provide l ess trac
tion on ice and snow.
.,. Use winter tires on all four wheels.
.,. Only use winter tires that are approved for your
vehicle.
.,. Please note that the maximum permitted
speed may be lower with winter tires
q .&,. . An
authori zed Audi dealer or authori zed Audi Serv
ice Facility can inform you about the maximum
permitted speed for your tires .
.,. Check the tire pressure after install ing wheels
q page 201.
The effectiveness of winter tires is reduced great
ly when the tread is worn down to a depth of
0 .157 inch (4 mm). The character istics of winter
tires also decrease greatly as the tire ages, re
gardless of the remaining tread.
A WARNING
- Never drive faster than the maximum per
mitted speed for your tires. This cou ld cause
the tires to heat up too much. This increases
206
-
the risk of an accident because it can cause
the tire to burst.
- Always adapt your driving to the road and
traffic conditions . Drive carefully and reduce
your speed on icy or slippery roads . Even
winter tires can lose traction on black ice .
@ For the sake of the environment
Reinstall summer tires at the appropriate
time, because they prov ide better handling
when roads are free of snow and ice. Summer
tires cause less road noise, tire wear and fuel
consumpt ion .
(D Tips
You can also use all season tires instead of
winter tires. Please note that in some coun
tries where winter tires are required, only
winter tires w ith the ~ symbol may be per
mitted.
Snow chains
Snow chains improve traction in the snow .
.,. Only install snow chains on the front wheels.
This applies also to vehicles with all wheel
drive* .
.,. Check and correct the seating of the snow
chains if necessary after driving a few feet. Fol
low the instructions from the manufacturer.
.,. Note the maximum permitted speed when dr iv
ing with snow chains. Do not exceed 30 mph (SO km/h).
Snow cha ins not only improve the
driving in win
ter road conditions, but also the
braking .
Use of snow chains is only permitted with certain
rim/tire combinat ions due to technical reasons .
Check with an author ized Audi dealer or author
ized Audi Service Facility to see if you may use
snow chains.
The snow chains must have
low-profile links and
must not be thicker than 0.53 inch (13.5 mm),
including the lock.
You must remove the chains when driving on
roads that are
free of snow . When roads are free ..,.
of snow, snow chain s can imp air handling and
damage the t ires, and t he chains will quickly be
destroyed.
A WARNING
Using incorrect snow chains or installing snow
chains incorrect ly can result in loss of vehicle
co ntrol, which increases the risk of an acc i
dent .
Snow chains can damage the r ims/wheel cov
ers* if the chains come into d irect contact
w ith them. Remove the wheel covers* first.
Use coated snow chains .
Low aspect ratio tires
Your Audi is facto ry-equipped with low aspect ra
tio ti res. These t ires have been tho rough ly tested
and been se lected specifically for yo ur model fo r
thei r superb per formance, road feel and handling
under a variety of driving conditions. Ask your au
thorized Audi dealer for more details .
The low aspect ratio of these t ires is indica ted by
a numera l of
55 or les s in the tire's size designa
tion. The numeral represents the ratio of the
tire's sidewall height i n relation to its tread width
expressed in percentage. Conventional tires have
a height/w idth ratio of 60 or more.
Th e performance of low-aspect- ratio tire s is par
ticularly sensit ive to improper inflation pre s·
sure . It is therefore important that low aspect
ratio tires are inflated to the specified pressure
and that the inflation pre ssure is regul arly
ch ecked and ma intained . Tire pre ssure s should
be checked at least once a month and a lways
before a long tr ip
c> page 201.
What you can do to avoid tire and rim
damage
L ow aspect rat io tires can be damaged more easi
ly by impact wi th pot holes, c urbs, gull ies or
r idges on the ro ad, p articul arly if the tire is un
de rinflated.
I n o rder to minimize the occurrence of impact
damage to the t ires of your ve hicl e, we recom-
Wh eel s
mend that you observe the following preca u
tions:
- Always ma in tain recommended inflat io n pres
sures. Check yo ur tire pressure every 2,0 00
m iles (3,000 km) and add air if necessary .
- Dr ive c arefully on roads w it h potholes, deep
gullies or ridges . The impac t from dr iving
through or over such obstacles can damage
your tires. Impact with a curb may a lso cause
damage to your tires.
- After any impact, immediate ly inspect your
tires or have them inspected by the nearest au
thorized Audi dealer. Replace a damaged tire as
soon as possible.
- Inspect your tires every 2,000 m iles (3,000 km)
for damage and wear. Damage is not always
easy to see . Damage can lead to loss of air and
underinflation, wh ich could even tually cause
tire fa ilure. If yo u believe that a tire may have
been damaged, replace the tire as soon as pos
sib le.
- These tires may wear more quickly tha n others .
- Please also remember that, while these tires
delive r responsive ha nd ling, they may ride less
comfortably a nd make mo re noise than other
choi ces.
Reduced performance in winter /cold se ason
conditions
All t ires are des igned for certai n purposes. The
low aspect ratio, ultra high performance tires
o rigi na lly installed on your veh icle are intended
f or maximum dry and wet road performance and
handling . They are not suitable for co ld, snowy or
icy weather conditions . If you drive under those
c ircumstances, you should equip yo ur vehicle
with all-season or winter tires, which offer better
tract ion under those conditions. We suggest you
u se the recommended snow or all-season tires
spec ified for your veh icle, or their equiva lent .
Refer to
c> page 206 for more detailed informa
t ion regarding winter tires.
Uniform tire quality grading
- Tread wear
- Traction AA ABC
- Temperature ABC
207
Wheels
Quality grades can be found where applicable on
the tire side wall between tread shoulder and maximum section width
¢ page 191, fig. 156.
For example: Tread wear 200, Traction AA, Tem
perature
A.
All passenger car tires must conform to Federal
Safety Requirements in addition to these grades.
Tread wear
The tread wear grade is a comparative rating
based on the wear rate of the tire when tested
under controlled conditions on a specified gov
ernment test course.
For example, a tire graded 150 would wear one
and one half (1 1/2) times as well on the govern
ment course as a tire graded 100.
The relative performance of tires depends upon
the actual conditions of their use, however, and may depart significantly from the norm due to
variations in driving habits, service practices and differences in road characteristics and climate.
Traction
The traction grades, from highest to lowest, are
AA, A, Band
C. Those grades represent the tire 's
ability to stop on wet pavement as measured un
der controlled conditions on specified govern ment test surfaces of asphalt and concrete. A tire
marked C may have poor traction performance
¢&_ .
Temperature
The temperature grades are A (the highest), B,
and C, representing the tire's resistance to the
generation of heat and its ability to dissipate heat when tested under controlled conditions on
a specified indoor laboratory test wheel.
Sustained high temperature can cause the mate rial of the tire to degenerate and reduce tire life,
and excessive temperature can lead to sudden
tire failure ¢&. .
The grade C corresponds to a level of perform
ance which all passenger car tires must meet un
der the Federal Motor Vehicle Safety Standard
No. 109 . Grades Band A represent higher levels
208
of performance on the laboratory test wheel than
the minimum required by law.
A WARNING -
The traction grade assigned to this tire is
based on straight-ahead braking traction
tests, and does not include acceleration, cor nering, hydroplaning or peak traction charac
teristics .
A WARNING
The temperature grade for this tire is estab
lished for a tire that is properly inflated and
not overloaded. Excessive speed, underinfla
tion, or excessive loading, either separately or
in combination, can cause heat buildup and
possible tire failure.
A WARNING
Temperature grades apply to tires that are properly inflated and not over or underinflat
ed.
Tire pressure monitoring system
(l) General notes
Appl ies to vehicles: with tire pressure mon itoring system
-
Each tire, including the spare (if provided),
should be checked monthly when cold and inflat
ed to the inflation pressure recommended by the
vehicle manufacturer on the vehicle placard or
tire inflation pressure label. (If your vehicle has
tires of a different size than the size indicated on
the vehicle placard or tire inflation pressure la
bel, you should determine the proper tire infla
tion pressure for those tires).
As an added safety feature, your vehicle has been
equipped with a tire pressure monitor ing system
(TPMS) that illuminates a low tire pressure tell
tale when one or more of your tires is significant-
ly under-inflated. Accordingly, when the low tire
pressure telltale illuminates, you should stop and
check your tires as soon as possible, and inflate
them to the proper pressure . Driving on a signifi
cantly under-inflated tire causes the tire to over
heat and can lead to tire failure . Under-inflation ..,.