Page 233 of 294

M N <( (.J
'SI: ,...., \!) ..,.,
N \!) ,....,
(D Note
Never use a fast charger as a booster to start
the engine . This w ill seriously damage sensi
tive electron ic components, such as control
units, relays, radio, etc., as well as the battery
charger.
Battery replacement
The new battery must have the same specifica
tions and dimensions as the original equipment
battery .
Intelligent energy management in your vehicle is
responsible for distributing the electrica l energy
throughout your vehicle
c:> page 194. The intell i
gent energy management system will keep the
engine battery charged better than vehicles w ith
out this system . To make sure the additional elec
tr ical energy is available once again after you
have changed the battery, we recommend that
you install batteries of the same type and manu facture only (the same as those installed at the
time your veh icle was delivered). Specif ications
are listed on the battery housing. Your author
ized dealer must code the battery in the energy
management system to enable you to use the en
e rgy management functions correctly after re
p lacing the battery.
The new battery must have the same capacity ,
voltage (12-volts), amperage, construction and plug sealing .
When installing the battery, make sure the igni
tion and all electrical consumers are switched off.
Make sure the ventilation hose on the s ide of
the battery is connected, otherwise fumes or
battery acid can leak out.
- Vehicles with the Start-Stop-System* are equipped with a special cycle-proof AGM battery. Installing a different type of bat
tery can cause problems in the vehicle elec
trical system. When replacing the vehicle
battery, always install one with the same
specifications as the original battery.
Checking and Filling
{® For the sake of the environment
Because of the prob lem of proper disposal of
a battery, we recommend your authorized
Audi dealer change the battery for you. Bat
teries contain sulfur ic acid and lead and must
always be disposed of properly in compliance
with all environmental regulations. Disposing
of vehicle batteries improperly is very danger
ous to the environment.
Windshield/headlight
washer container
Fig. 194 Engine compa rtment: cover on the winds hie ld
and head lig ht* washer fluid reservoir
The washer fluid container is marked with the
symbol
ip on its cap c:>fig. 194, c:>page 220,
fig. 188.
.. Before you check anything in the engine com
partment,
always read and heed all WARN
INGS c:> .&. in Working in the engine compart
ment on page 218.
.. Lift the filler cap tongue to add washer fluid.
You can fill the container to the top .
.. Press the cap back onto the filler neck after fill-
ing the container .
You can find the reservoir
capacity in the table in
c:>page272.
Clean water should be used when filling up. If
possible, use soft water to prevent scaling on
washer jets. Always add a g lass cleaner solution
(with frost protection in the winter) . ..,.
231
Page 234 of 294
Checking and F ill in g
CJ) Note
Do not mix engine coolant antifreeze or any
other add itives to fi ll up the windshie ld wash
er rese rvoir.
232
Page 235 of 294

Wheels
Wheels and Tires
General information
.,.Che ck your tires regularly for
damage (punctures, cuts, cracks
and bulges). Remove foreign ob
jects from the tire tread.
.,. If driving over curbs or similar
obstacles, drive slowly and ap
proach the curb at an angle.
.,.Have faulty tires or rims re
placed immediately.
"'Protec t your tires from oil,
grease and fuel.
.,.Ma rk tires before removing
them so that the same running direction can be maintained if
they are reinstalled .
.,.Lay tires flat when storing and
store them in a cool, dry location
with as little exposure to light as
possible.
(D Note
-Please note that summer and
winter tires are designed for
the conditions that are typical
in those seasons. Audi recom
mends using winter tires dur
ing the winter months. Low
temperatures significantly de crease the elasticity of summ
er tires, which affects traction
Wheels
and braking ability. If summer
tires are used in very cold tem
peratures, cracks can form on
the tread bars, resulting in
permanent tire damage that
can cause loud driving noise
and unbalanced tires.
-Burnished, polished or
chromed rims must not be
used in winter driving condi
tions. The surface of the rims
does not have sufficient corro
sion protection for this and
could be permanently dam
aged by road salt or similar
substances.
Tire designations
Fig. 195 T ir e designations on the sid e-
wall ,..
233
Page 236 of 294

Wheels
(D Tires for passenger vehicles
(if applicable)
P indicates 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
Winter tires on page 248.
"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 (150 km/h)
Q up to 99 mph (160 km/h)
234
Speed rat- Maximum permitted speed
Ing
R up t o 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)a>
z above 149 mph (240 km/h)a)
w up to 168 mph (270 km/h)a)
y up to 186 mph (300 km/h)a)
a) For tires above 149 mph (240 km/h),
tire manufacturers 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 ... 2214 ...
means, for example, that the tire
was produced in the 22nd week of
the year 2014.
@ 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 highest standards of safety and handling.
Your authorized Audi dealer will
be happy to provide more infor
mation.
Page 237 of 294

® Mud and snow capability
"M/S" or "M+S" indicates the tire
has characte ris tics that make it
suitable for driving on mud and snow .
& indica tes a winter tire.
@ Composition of the tire cord
and materials
T he number of plies indicates the
number of rubber ized fabric lay
ers in the tire . In general: the
more layers, the more weight a
tire can carry. Tire manufacturers
must also specify the mater ials
used in the ti re. These include
stee l, nylon, polyester and other
materials.
@ Maximum permitted load
This number indicates the maxi
mum load in kilograms and
pounds that the tire can carry .
@ Uniform tire quality grade
standards for treadwear,
traction and temperature resistance
Treadwear , traction and tempera
ture ranges
c::::> page 250 .
@Running direction
The arrows ind icate the running
direction of unidirect ional tires.
You must always follow the speci- fied running direction
c::::> page 259.
€3) Ma
ximum permitted
inflation pressure
Whe els
This number indicates the maxi
mum pressure to which a tire can
be inflated unde r normal operat
ing conditions .
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 steer
ing, power brakes, power win
dows, power seats, radio, and
heater, to the extent that these
items are available as factory-in
stalled equipment (whether in
stalled or not).
Aspect ratio
means the ratio of the height to
the width of the tire in percent. Numbers of 55 or lower indicate a
low s idewall for improved steer
ing response and better overall
handling on dry pavement . .,.
235
Page 238 of 294

Wheels
Bead
means the part of the tire that is
made of steel wires, wrapped or
reinforced by ply cords and that is
shaped to fit the rim .
Bead separation
means a breakdown of the bond
between components in the bead.
Cord
means the strands form ing the
plies in the tire.
Cold tire inflation pressure
means the tire pressure recom
mended by the vehicle manufac
turer for a tire of a designated
size that has not been driven for
more than a coup le of miles (kilo
meters) at low speeds in the three
hour period before the tire pres
sure is measured or adjusted .
Curb weight
means the weight of a motor ve
hicle with standard equipment in
cluding the maximum capacity of
fuel, oi l, and coolant , air condi
tioning and additional weight of optional equipment.
E x tra load tire
means a tire des igned to operate
at higher loads and at higher in-
236
flation pressures than the corre
sponding standard tire . Extra load
tires may be identified as "XL",
"xl", "EXTRA LOAD", or "RF" on
the sidewall.
G ross A xle Weight Rating
("GAWR ")
means the load-carrying capacity
of a single axle system , measured
at the tire-ground interfaces .
Gross Vehicle Weight Rating
( "GVWR" )
means the max imum total loaded
weight of the vehicle .
Groove
means the space between two ad
jacent tread ribs .
Load rating (code )
means the max imum load that a
tire is rated to carry for a given in
flation pressure . You may not find
this information on all tires be cause it is not required by law.
Ma ximum load rating
means the load rating for a tire at
the maximum permissible infla
tion pressure for that tire .
Maximum loaded vehicle
w eight
means the sum of: ...
Page 239 of 294

(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight, and
(d) Product ion options weight
Maximum (permissible)
inflation pressure
means the max im um cold infla
tion pressu re to which a tire may
be inflated . Also called "ma xi
mum inflation pressure ."
Normal occupant weight
means 150 lbs . (68 kilog rams)
times the number of occupants
seated in the veh ic le up to the to
tal seating capacity of yo ur vehi
c le.
Occupant distribution
means d istr ibution of occupants
in a vehicle.
Outer diameter
means the overall diameter of an
inflated new tire .
Overall width
means the linear dis tance be
tween the exter iors of the side
walls of an inflated tire , including
elevations d ue to labe ling, deco
rations , or protective bands or
ribs .
Whee ls
Ply
means a layer of rubbe r-coated
parallel cords .
Production options weight
means the comb ined weight o f
those installed regular production
options weighing over 5 lbs . (2 .3
kg) in excess o f those s tandard
items which they re place , not pre
viously conside red in c urb weight
or accessory weight, including heavy duty brakes, ride levelers,
roof rac k, heavy d uty batte ry, and
specia l trim .
Radial ply tire
means a pneumat ic t ire in which
the ply cords that ex tend to the
beads are la id at substantially 90
degrees to the centerli ne of the
tread .
Recommended inflation
pressure
see ~ page 2 36, Cold tire infla
tion pressure .
Reinforced tire
means a tire designed to operate
at higher loads and at h igher in
flat ion pressures than the corre
spon ding standard tire . Rein
f orced tires may be identified as
23 7
Page 240 of 294

Wheels
"XL" "xl" "EXTRA LOAD" or "RF" I I I
on the sidewal l.
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 yo ur
wheel size , you w ill have to pur
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 .
Sidewall
means that port ion o f a t ire 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 t ime. The rat ings
range from 93 mph (150 km/h)
to 186 mph (298 km/h)
¢ table
on page 234 .
You may not find
this information on all tires be
cause it is not required by la w.
238
The speed rating letter code ,
where applicable , is mo lded on
the tire sidewall and indicates the maximum permiss ible road
speeds
¢ .&. in Winter tires on
page 248.
Tire pressure monitoring
system*
means a system that detects
when one or mo re of a ve hic le's
tires are under inflated and illumi
na tes a low tire p ressu re warning
tellta le .
Tread
means that portion of a tire that
comes into contact w ith the road.
Tread separation
means pu lling away of the tread
from the t ire carcass.
Treadwear indicators (TWI)
means the projections wi thin the
principal grooves designed to give
a visua l indication of the deg rees
of wear of the tread . See
¢ page 242 , Treadwear indicator
for mo re information on measur
ing t ire wear.