2015 AUDI A4 height

-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 de­
signed for the conditions
that are typical in those sea­
sons. Audi recommends us­ing winter tires during the
winter months. Low tem­ peratures significantly de­
crease the elasticity of
summer tires, which affects
traction and braking ability.
Tires and wheels 229
If summer tires are used in
very cold temperatures, cracks can form on the tread bars, resulting in perma­
nent tire damage that can
cause loud driving noise and unbalanced tires. Audi is not
responsible for this type of
damage.
-Burnished, polished or chromed rims must not be used in winter road condi­
tions. The surface of the
rims does not have suffi­
cient corrosion protection
for this and could be perma­
nently damaged by road salt
or similar substances.
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Glossary of tire and loading terminology
Accessory weight
means the combined weight (in
excess of those standard items
which may be replaced) of auto­ matic transmission, power
steering, power brakes, power
windows, power seats, radio, and heater, to the extent that
these items are available as fac­
tory-installed equipment (whether installed or not).
Aspect ratio
means the ratio of the height to
the width of the tire in percent. Numbers of 55 or lower indi­
cate a low sidewall for im­ proved steering response and
better overall handling on dry
pavement.

248 Tires and wheels
New tires and replacing
tires and wheels
New tires and wheels have to
be broken in.
Fig. 193 Tire specification codes on
the sidewall of a tire
No. Description
CD Passenger car tire (where
applicable)
@ Nominal width of tire in
millimeters
@ Ratio of height to width
(aspect ratio)
© Radial
® Rim diameter code
® Load index and speed rat-
1ng
(j) U.S. DOT tire identifica -
tion number
No. Description
® Audi Original tire
® Sever snow conditions
@ Tire ply composition and
materials used
@ Maximum load rating
@ Treadwear, traction and
temperature grades
@ Maximum permissible in-
flation pressure
The tires and rims are essential
parts of the vehicle's design.
The tires and rims approved by
Audi are specially matched to
the characteristics of the vehi­
cle and can make a major con­
tribution to good road holding and safe handling when in good
condition and properly inflated
¢ A .
We recommend that all work
on tires and wheels be per­
formed by an authorized Audi
dealer. They are familiar with recommended procedures and
have the necessary special tools
and spare parts as well as the
proper facilities for disposing of
the old tires.
Authorized Audi dealers have
the necessary information

250 Tires and wheels
p Indicates the tire is for pas-
senger cars (where applica- ble)
255 Nominal tire width in mm
of the tire from sidewall
edge to sidewall edge. In
general, the larger the num-
ber, the wider the tire
35 Height/width ratio in per-
cent (aspect ratio)
R Tire construction: Radial
19 Rim diameter code (in in-
ches)
96 Load rating code
Y Speed rating letter code
XL (or "xl" "EXTRA LOAD" or , 1
"RF" Indicates that the tire is
a"Reinforced" or an "Extra
Load" tire
M+S (or "M/5") Indicates that
the tire has some mud and snow capability
The tires could also have the in-
formation of direction of rota-
tion
c:::> page 228.
Tire manufacturing date
The manufacturing date is also
indicated on the tire sidewall
l ) For t ires with a maximum speed ca­
pability ov er 149 mph (240 km/h) ,
tire manufacturers sometimes use
the letters "ZR."
(possibly only on the inner side
of the wheel):
"DOT ... 2214 ... " means, for
example, that the tire was pro-
duced in the 22nd week of
2014.
Speed rating (letter code)
The speed rating letter code on
the wheels indicates the maxi -
mum permissible road speeds
c:::> A in Winter tires on
page 255.
P up to 93 mph (150 km/h)
Q up to 99 mph (158 km/h)
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)1
)
z over 149 mph (240 km/h)1)
W up to 168 mph (270 km/h)1
)
Y up to 186 mph (298 km/h)1)
Your vehicle is normally factory
equipped with tires, which pos-
sess excellent driving character- istics and give your Audi
....

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and handling under a variety of driving condi­
tions . Ask your authorized Audi dealer for
more details.
The low aspect ratio of these tires is indicated
by a numeral of
55 or less in the tire's size
designation. The numeral represents the ratio
of the tire's sidewa ll height in relation to its
tread width expressed in percentage . Conven­
tional tires have a height/width ratio of 60 or
more .
The performance of low-aspect-ratio tires is
particularly sensitive to improper inflation
pressure. It is therefore important that low
aspect ratio tires are inflated to the specified
pressure and that the inflation pressure is
regularly checked and maintained. Tire pres­
sures should be checked at least once a
month and always before a long trip
¢ page 239, Checking tire pressure.
What you can do to avoid tire and rim
damage
Low aspect ratio tires can be damaged more
easily by impact with potho les, curbs, gullies
or ridges on the road, particularly if the tire is
underinflated .
In order to minimize the occurrence of impa ct
damage to the tires of your vehicle, we recom­
mend that you observe the following precau­
tions:
- Always maintain recommended inflation
pressures. Check your tire pressure every
2,000 miles (3,000 km) and add air if neces­
sary .
- Drive carefully on roads with potholes, deep
gullies or ridges. The impact from driving
t hr ough or over such obstacles can damage
your tires. Impact with a curb may also cause damage to your tires.
- After any impact, immediately inspect your
t ir es or have them inspected by the nearest
authorized Aud i dealer. Replace a damaged
t ir e as soo n as possible .
- Inspect your t ires every 2,000 miles (3,000
km) for damage and wear . Damage is not al­
ways easy to see . Damage can lead to loss of
air and underinflation, wh ich could eventu-
Tires and wheels 257
ally cause tire failure. If you believe that a
tire may have been damaged, rep lace the
tire as soon as possib le.
- These tires may wear more quickly than oth­
ers.
- Please also remembe r that, while these tires
deliver responsive handling, they may ride
less comfortably and make more noise than
other choices.
Reduced performance in winter/cold
season conditions
All tires are designed for certain purposes.
The low aspect ratio, ultra high performance
tires or iginally installed on your vehicle are in­
tended for maximum dry and wet road per­
formance and handling. They are not suitable
for cold, snowy o r icy weather conditions. If
you drive under those circumstances, you
should equip your vehi cle w ith all-season or
winter tires, which offer better traction under
those conditions. We suggest you use the rec ­
ommended snow or a ll-season tires specified
for your vehicle, or their equivalent .
Refer to¢
page 254 for more detailed infor­
mation regarding winter tires.
Ti re pressure
monitoring system
ill General notes
Applies to vehicles: with tire pressure monitoring system
Each tire, including the spare (if provided),
sho uld be checked monthly when cold and in ­
flated to the inflation pressure recommended by the veh icle manufacturer on the veh icle
placard or tire inflation pressure label. (If your
vehicle has tires of a d ifferent size than the
s ize indicated on the vehicle placard or tire in ­
flat io n pressure label, you should determine
the proper t ire inflation pressu re for those
tires).
As an added safety feature , your veh icle has
been equipped with a tire pressure mon itoring
system (TPMS) that illum inates a low ti re
pressure te llt ale when one or more of your
tires is significantly under-inflated. .,.
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Index 297 ____________________________ ...:.:..:.=.:::.::.:
Remote control key .................. . 32
Personalizing ................ .. .... 32
unlocking/locking ............ .. .. .. 34
Remote rear lid release . . . . . . . . . . . . . . . 38
Repair manuals ..................... 283
Repairs
Airbag system
157
Replacement key ................ .... 32
Replacing
Windshield wiper blades .............
58
Replacing bulbs .............. ... ... 272
Replacing tires and wheels ....... .. ... 249
Replacing wiper blades ............... 57
Reporting Safety Defects ....... ... .. . 134
Reset button .... .. .. ... ... .. .. .. .. .. 12
Retractor .... ................. .. ... 139
Reversible floor .................. .... 76
Reversible mat ................ .. .... 75
Right hand drive .............. ... .... 51
Rims
Cleaning . ............... ...... .. .
203
Roof rack . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Roof load . . . . . . . . . . . . . . . . . . . . . . . . . 70
Roof weight . . . . . . . . . . . . . . . . . . . . . . . 70
s
SAFE ..... ......................... 12
Safe driving habits ............ ... .. . 126
Safety belt position ................. 140
Safety belt height adjustment .. .. .. . 142
Safety belts worn by pregnant women . 141
Safety belt pretensioner . . . . . . . . . . . . . . 142
Service and disposal . . . . . . . . . . . . . . . 143
Safety belts .. .. .............. ... ... 139
Cleaning . .. .. ........... .. .. .. ... 204
Danger to passengers who do not wear a
safety belt . . . . . . . . . . . . . . . . . . . . . . .
13 7
Fastening ........................
139
Height adjustment . . . . . . . . . . . . . . . . . 142
Improperly worn .................. 142
Not worn .. ............. .... .. ... 137
Safety belt position . . . . . . . . . . . . . . . . 140
Safety instructions ................. 139
Securing child safety seats . . . . . . . . . . 17 5
Special considerations for pregnant
women ..........................
141
Unfasten ing ..... ................. 141
Warning/indicator light ........... .. 136
w . 1· h arning 1g t .. .. .. ................ 16
Why YOU MUST wear them .......... 136
Worn properly ....... ............. 138
Safety belt warning light ........... .. 136
Safety compliance sticker ............ 280
Safety equipment ...... ............. 126
Safety features for occupant restraint and
protection ... ..... .................
126
Safety guidelines
Seats .............................
60
Safety instructions
Engine compartment ...............
212
for side curtain airbags ............. 163
for using child safety seats ........ .. 168
for using safety belts ............... 139
Monitoring the Advanced Airbag Sys-
tem .............................
156
Seat adjustment
Head restraints .............. .... .
130
Seat belts
refer to Safety belts ... ............. 136
Seat covers
Cleaning ... ..... .. . ..............
205
Seat heating .. .. .. .. . .. ... .... .... .. 80
Seating capacity ... .. ........... .... 136
Seating position
Driver ...........................
127
Front passenger .... .............. . 128
How to adjust the front seats ....... . 128
Incorrect seat position . ............. 130
Occupants . .. .. .. ... ............ .. 127
Rear passengers .. ............. .... 129
Seat memory . . . . . . . . . . . . . . . . . . . . . . . 64
Seats
Ad '
t· JUS mg . . . . . . . . . . . . . . . . . . . . . 61 , 62
D . , rivers seat . . . . . . . . . . . . . . . . . . . . . . . 60
Folding ..... .. .. ... ............ .. . 71
Front passenger's seat ............... 61
Head restraints .... .............. .. 63
Number of seats ... .............. . 136
Safety guidelines . .................. 60
Securing attachments .. ......... .. .. . 75
Selective unlock feature . . . . . . . . . . . . . . . 36
Selector lever . . . . . . . . . . . . . . . . . . . . . . . 94
Emergency re lease ................. 100
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