Page 201 of 272

<( co .... N ,.__
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can be cracked due to ice format ion and can leak
battery acid.
Battery charging (Maximum charging rate of
30 amps/ 14.8 Volt)
When charging at
low voltages (e.g. with a trick
le charger), the battery cables do not have to be
d isconnected first. The battery caps should
not
be opened when charging a battery.
It is not necessary to remove the battery from
the luggage compartment, and it is also not nec
essary to disconnect the cables.
Fast charging the battery (charging rate
above 14.8 Volts)
F or technical reasons do not use a battery charg
er that uses voltage greater than 14.8 Volts to
charge your vehicle's battery.
A WARNING
Charging a battery can be dangerous.
- Always follow the operating instructions
provided by the battery charger manufactur
er when charging your battery.
-Never charge a frozen battery. It may ex
plode because of gas trapped in the ice. Al
low a frozen battery to thaw out first.
- Do not reuse batteries which were frozen.
The battery housing may have cracked and
weakened when the battery froze .
- Charge the battery in a well ventilated area.
Keep away from open flame or electrical
spark. Do not smoke . Hydrogen gas generat
ed by the battery is exp losive.
- To reduce the danger of explosion, never
connect or disconnect charger cables wh ile
the charger is operat ing.
- Fast charging a battery is dangerous and
should only be attempted by a competent
technician with the proper equipment.
- Battery acid that may spill during charging
should be washed off with a solution of
warm water and baking soda to neutralize
the acid.
Checking and Filling
(D Note
Never use a fast charger as a booster to start
the engine. This will seriously damage sensi
tive electronic components, such as control units, relays, radio, etc., as well as the battery
charger.
Battery replacement
The new battery must hove the some specifica
tions and dimensions as the original equipment
battery.
Intelligent energy management in your vehicle is
responsible for distribut ing the e lectrical energy
throughout your vehicle
c;, page 121 . The intelli
gent energy management system will keep the
engine battery charged better than vehicles with
out this system. To make sure the additional
electrical 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
t ime your vehicle was delivered). Specifications
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
ergy management functions correctly after re
plac ing the battery.
The new battery must have the same capacity,
voltage (12-volts), amperage, construction and plug seal ing.
When install ing the battery, make sure the ign i
t ion and all electr ical consumers are switched
off .
(D Note
Make sure the venti lation hose on the s ide of
the battery is connected, otherwise fumes or battery acid can leak out .
@ For the sake of the environment
Because of the problem of proper d isposal 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 .,.
201
Page 202 of 272

Check ing and F illing
with all environmental regulations. D isposing
of vehicle batteries improperly is very danger
ous to the env ironment .
Windshield washer
system
F ig. 16 7 Engin e co mpartment : washer fluid reservoir cap
"' N
-N
" 0:, lD
The washer flu id reservoir§ contains the wind
shie ld wash er fluid
¢ page 191, fig. 161. The res
ervoir capacity is found in
9 page 251.
.. Read and follow a ll WARNINGS before wo rking
in the engine compartment ¢
page 188, Work
ing in the engine compartment.
.. Open the cap .
.. Add the washer fluid and close the cap .
To reduce the risk of lime sca le deposits on the
spray nozzles, use clean water w ith low amounts
of calc ium . A lways add window cleaner to the wa
t er. When the outs ide temperatures are co ld, an
anti-freezing agent should be added to the water
so that it does not freeze .
(D Note
-The concentration of anti-freezing agent
must be ad justed to the vehicle operating
cond itions in the respect ive climate . A con
ce ntration that is too high can lead to veh i
cle damage.
- Neve r add rad iator ant i-freeze or ot her addi
tives to the washe r fl uid .
- Do not use a glass cleaner that conta ins
paint solvents, beca use this cou ld damage
the pa int.
202
Service interval display
T he service interval display detects when your ve
hicle is due for service.
The service interval display works in two stages :
-Inspe cti on or oil change reminder: afte r a cer-
tain dis tan ce dr ive n, a message appears in the
instrument cluster display each t ime the igni
tion is switched on or off . The remaining dis
tance or tim e is disp layed briefly.
- Inspection or oil change due : if your vehicl e
has reached an inspection or oil change inte rval
or both intervals at the same t ime, the mes
sage
Inspection due! or Oil change due! or Oil
change and inspection d ue!
appears briefly af
ter switching the ignition on/off.
Check ing ser vice inter vals
You can check the remaining d istance or t ime un
ti l the next oi l change or next inspection in the
MMI. Select the
i MENU I button> Car> Systems *
control button > Ser vice & control > Service in
tervals .
Resetting the indic ator
Your a uthorized Audi dea ler or authorized Audi
Service Facility w ill reset the service interva l dis
play after perform ing service .
If you perform an o il change yourse lf to the Audi
specifications, you must reset the service interval
display .
To rese t the disp lay, select the
I MENU I but ton>
Car > Systems * control button > Service & con
t rol > Service inter vals > Re set oil change inter ·
val.
(D Note
- Only reset the oil c hange indicator if the oi l
was changed .
- Following the service in terva ls is cr itica l to
mainta ining the se rvice life and val ue of
your vehicle, especially the engine. Even if
the mileage on the ve hicle is low, do not ex
ceed the time for the next service.
- Calculat ing the time to the next oil change
is inte rrupted when the vehicle battery is
Page 203 of 272
<( co .... N ,.__
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disconnected. If the vehicle is not driven for
a long period of time, check the mainte nance schedule so that you can follow the
maintenance intervals.
Checking and Filling
203
Page 204 of 272

Tires and wheels
Tires and wheels
Wheels
General information
~check 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.
~ Protect your tires from oil,
grease and fuel.
~ Mark 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.
(i}) Note
-Please note that summer and winter tires are designed for
the conditions that are typical i n those seasons. Audi recom
mends using winter tires dur
i ng the winter months. Low
temperatures significantly de crease the elasticity of summ
er tires, which affects traction
204
and braking ability. If summer
tires are used in very cold
temperatures, 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 r ims
does not have sufficient corro
sion protection for th is and
could be permanently dam
aged by road salt or similar
substances.
Tire designations
Fig. 168 Tire specifi cation codes on the
sidewall of a tire .,._
Page 205 of 272

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(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 219.
"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)
Tires and wheels
Speed rat- Maximum permitted speed
ing
R up to 1 06 m ph (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 ) Tire manufacturers sometimes use "ZR"
for tires with a maximum speed above
149 mph (240 km/h).
(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 highest standards of safety and handling.
An authorized Audi dealer or au
thorized Audi Service Facility will ""
205
Page 206 of 272

Tires and wheels
be happy to provide more infor
mation .
® Mud and snow capability
"M/S" or "M+S" indicates the tire
is suitable for driving on mud and
snow.
& indicates a winter tire.
@ Compos ition 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 materia ls
used in the tire. These include
steel , nylon, polyester and other
materials.
@ Ma ximum permitted load
T his 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
Tread wear, t raction and temper
ature ranges
¢page 221 .
@ Running direction
The arrows indicate the running
direction of unidirectional t ires.
You must always follow the speci -
206
fied running direction
¢page 238 .
(8) Maximum permitted
inflation pressure
This number indicates the maxi
mum pressure to which a t ire can
be inflated under normal operat
ing condit ions.
Glossary of tire and loading
terminology
Accessory we ight
means the combined weigh t (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 rat io of the height to
the width of the tire in pe rcent.
Numbers of 55 or lower indicate a
low s idewall for imp roved steer
ing response and better overa ll
handling on dry pavement.
Page 207 of 272

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 forming 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 couple of miles (kilo
meters) at low speeds in the
three hour period before the tire pressure is measured or adjusted .
Curb weight
means the weight of a motor ve
hicle with standard equipment in
c luding the maximum capacity of
fuel, oi l, and coolant, air condi
tioning and add itional weight of
optional equipment.
E xtra load ti re
<( a:,
~ means a tire designed to operate
N
~ at higher loads and at higher in
s: a:,
Tires and wheels
flation pressures than the corre
sponding standard tire . Extra load
tires may be identified as "XL",
" xl", "EXTRA LOAD", or "RF" on
the sidewall.
Gross Axle 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 maximum load tha t a
tire is rated to carry for a given in
flat ion pressure . You may not find
this informat ion on all tires be
cause it is not requ ired by law.
Maximum load rating
means the load rating for a tire at
the maximum permissible infla
tion pressure for that tire.
Maximum loaded vehicle
weight
means the sum of:
2 0 7
..
Page 208 of 272

Tires and wheels
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight, and
(d) Production options weight
Ma ximum (permissible )
inflation pressur e
means the maximum cold infla
tion pressure to which a tire 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 vehicle up to the to
ta l seating capacity of your vehi
c le .
Occupant d istribution
means distribution of occupants
in a vehic le .
Outer diameter
means the overall diameter of an
inflated new tire.
Overall width
means the l inear 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 .
208
Ply
means a layer of rubber -coated
parallel cords.
Production options weight
means the comb ined 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
vio usly considered in c urb weight
or accessory weight, inc luding
heavy duty brakes, ride levelers,
roof rack, heavy duty ba ttery, and
special trim.
Radial ply tire
means a pneumatic tire in which
the ply cords that extend to the beads are laid at subs tantially 90
degrees to the centerline of the
tread .
Recommended inflation
pressure
see~ page 207, Cold tire infla
tion pressure.
Reinforced tire
means a tire designe d to operate
at higher loads and at higher in
flat ion pressures than the corre
spond ing standard tire . Rein
forced tires may be identified as .,.