2015 AUDI RS5 COUPE Owners Manual

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q &.. However, we recommend not using a
thawed battery again because the battery casing
can be cracked due to ice formation and can leak
battery acid.
Batt ery chargi ng (Maximum cha rging rate of
30 amp s/14 .8 Volt )
When charging at
low voltages (e.g. with a trickl e
cha rger ), the battery cables do not have to be
d isconnected first. The battery caps shou ld
not
be opened when charg ing a battery.
It is not necessary to remove the battery from
the luggage compartment.
Fast charging th e battery (char ging rat e
above 14 .8 Vo lt s)
For 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 hous ing 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. Hyd rogen gas generat­
ed by t he battery is explos ive.
- To reduce the danger of explosion, never
co nnect or disconnect cha rger cables while
the cha rger is operating.
- Fast charg ing a battery is dangerous and
should only be attempted by a competent
tec hnician with the p roper equipment.
- Battery acid that may spill du ring charg ing
sho uld be washed off w ith a so lution of
wa rm w ater and baking soda to ne utralize
the acid .
Checking and Fillin g
(D Note
Never use a fast charger as a booster to start
the engine . This will ser iously damage sensi­
tive electronic components, s uch 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 distributing the electrical energy
t h roughout your vehicle
q page 175. The intelli­
gent energy management system w ill keep the
engine battery charged better then vehicles with­
out this system. To make s ure the addit ional elec­
t rical energy is ava ilab le once again afte r yo u
have changed the battery, we recommend that
you install batteries of the same type and man u­
facture on ly (the same as those insta lled at the
t ime yo ur vehicle was delivered). Specifications
are listed on the battery hous ing. Your author­
ized Audi dealer must code the battery in the en­
ergy management system to enab le you to use
the e nergy management fu nctions correctly after
replacing the battery.
If it is not possib le to use a battery of this type,
the new battery must have the same capac ity,
voltage ( 12-volts), amperage, construction and
plug sealing.
When installing the battery, make sure the igni­
t ion and all electr ica l consumers are turned off.
(D Note
Make sure the ventilat ion hose on the side of
the battery is connected, otherwise fumes or
battery acid can leak out.
@ 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
a lways be d isposed of properly in compliance ..,.
199

Checking and Fill in g
with all environmental reg ulations. D isposing
of vehicle batteries improperly is
very danger­
ous to the env ironment.
Windshield/headlight*
washer container
F ig . 168 Engin e com partm en t: Cover o n the win d shi eld
and head lig ht• was he r fl ui d co ntainer
The washer flu id container is marked with the
symbo l~ on its cap
~fig . 168 , ~ page 189,
fig . 161.
(") N
-N
"' co a,
• Before you check anyth ing in the eng ine com ­
partment,
alw ay s re ad and he ed all WARN­
IN GS ~ ,& in Working in the engine compart­
ment on page 187 .
• Lift the fi ller cap tong ue to add w asher fl uid .
You can fill the container to the top.
• Press the cap back onto the filler neck after f ill-
ing the container .
You ca n find the rese rvoir
c apa city in the tab le in
~ page 234.
Clean water sho uld be used when fill ing up . If
possible, use soft water to prevent sca ling on the
washer jets. Always add a glass cleane r solu tion
(with frost protection in the winter) .
@) Note
Do not mix engine coo lant antifree ze or any
other add itives to fi ll up the windshie ld wash­
er reservoir .
200

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. 169 T ir e designations on the sid e-
wall ,..
201

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
W inter tires on page 211 .
"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)
202
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)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 ... 4514 ...
means , for example, that the tire
was produced in the 45th week of
the year 2014.
@ Audi Original equipment
tires
Audi Original equipment tires
with the designation "RO" have
been specially matched to your
Audi. When used correctly, these
tires meet the highest standards
of safety and handling. Your au­
thorized Audi dealer will be happy
to provide more information . ..,.

® 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 rubbe rized fabr ic lay­
e rs in the t ire . In general: t he
more layers, the more weight a
tire can carry. Tire manufa ctu re rs
must also specify the mater ials
used in the t ire. 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¢
page 212 .
@Running direction
The arrows ind icate the running
direction of un idirect ional tires.
You m ust always follow the speci- fied
running d irection
¢ page 223.
€3) Maximum permitted
inflation pressure
Whe els
T his number ind icates the max i­
mum pressure to which a ti re can
be inflated unde r no rmal opera t­
ing conditio ns.
New tires or wheels
Audi recommends having al l work
on t ires or wheels pe rformed by
an authorized Audi dealer or au­
thorized repair facility. These fa­
cilities have the proper know le d ge
and are equippe d with t he re­
qu ired t ools and rep lacement
parts.
... New tires do not yet have the
optimum adhesion properties.
Drive caref ully and a t moderate
speeds for the first 3S0 m iles
(500 km) with new tires .
... use tires of the same cons truc­
tion , size (ro lling circum ference)
and the same tread pattern on
a ll four w hee ls .
... Do not replace t ires individua lly.
At least rep lace b oth tires on the
same ax le at the same time .
.,. A udi recommends t hat yo u use
A udi Or ig inal equipment tires. If ,.
20 3

Wheels
you would like to use different tires, please note that the tires
may perform differently even if
they are the same size¢
&-
~ If you would like to equip your
vehic le with a tire/rim combina­
tion that is different from what
was installed at the factory, con ­
sult with an authorized Audi dealer or authorized repair facili­
ty before making a purchase
¢ & .
All four wheels must be equipped
with tires that are the same brand
and have the same construction
and tread pattern so that the
drive system is not damaged by
different tire speeds .
.&._ WARNING ,= ~
-Only use tire/rim combina-
tions and suitable wheel bolts
that have been approved by
Audi . Otherwise, damage to
the vehicle and an accident
could result.
-For technical reasons, it is not possible to use tires from oth­
er vehicles - in some cases,
you cannot even use tires from
the same vehicle model.
-Make sure that the tires you select have enough clearance
20 4
to the vehicle . Replacement
tires should not be chosen
simply based on the nominal
size, because tires with a dif­
ferent construction can differ
greatly even if they are the
same size. If there is not
enough clearance, the tires or
the vehicle can be damaged
and this can reduce driving
safety and increase the risk of
an accident .
-Only use tires that are more than 6 years old when abso­lutely necessary and drive
carefully when doing so.
- If you install wheel covers on
the vehicle, make sure they al­
low enough air circulation to
cool the brake system. If they
do not, this could increase the
risk of an accident .
Tire wear/damage
Fig. 170 Tire profile: Treadwear indica -
~r ~

"' N er .... "!
Tire wear
Check the tires regularly for wear.
-Inflation pressure that is too low
or high can increase tire wear
considerably.
-Driving quickly through curves, rapid acceleration and heavy
braking increase tire wear.
-Have an authorized Audi dealer or authorized repair facility
check the wheel alignment if
there is unusual wear.
-Have the wheels rebalanced if an
imbalance is causing noticeable
vibration in the steering wheel.
If you do not, the tires and other
vehicle components could wear more quickly.
Treadwear indicator
Original equipment tires contain
treadwear indicators in the tread pattern, which are bars that are 1/16 inch (1.6 mm) high and are
spaced evenly around the tire per­
pendicular to the running direc­
tion
c:> fig. 170. The letters "TWI"
or triangles on the tire sidewall
indicate the location of the tread­
wear indicators.
;;; l) Obey any applicable regulations in your "?
~ country . .....
Wheels
The tires have reached the mini­
mum tread depth
l) when they
have worn down to the treadwear
indicators. Replace the tires with
new ones
c:> .&. .
Wheel rotation
Rotating the wheels regularly is
recommended to ensure the tires
wear evenly . To rotate wheels, in­
stall the wheels from the rear
axle on the front axle and vice ver­
sa. This will allow the tires to
have approximately the same
length of service life.
For unidirectional tires, make sure
the tires are installed according to
the running direction indicated on
the tire sidewall
c:> page 223.
Hidden damage
Damage to tires and rims can of­
ten occur in locations that are hid­
den. Unusual vibrations in the ve­
hicle or pulling to one side may
indicate that there is tire damage.
Reduce your speed immediately.
Check the tires for damage. If no
damage is visible from the out­
side, drive slowly and carefully to
the nearest authorized Audi
205

Wheels
dealer or authorized repair facility
to have the vehicle inspected.
&_ WARNING
Tread that has worn too Low or
different tread depths on the
tires can reduce driving safety.
This can especially have a nega­
tive effect on handling, on the
risk aquaplaning when driving
through water, when driving
through curves and when brak­
ing, which increases the risk of
an accident.
Tire pressure
Fig. 171 Driver's side 8 -pillar: tire pres ­
sure label
~------------
Fig. 172 Tire pressure label
206
"' ~
The correct tire pressure for tires
installed at the factory is Listed on
a Label. The Label is Located on the
B -pillar
¢ fig. 171, ¢fig. 172.
Use the tire pressure specified for
a normal vehicle Load when the
vehicle is partially Loaded
¢
page 207 . If driving the vehicle
when fully Loaded, you must in­
crease the tire pressure to the
maximum specified pressure¢,&. .
Checking/correcting tire
pressure
..,Check the tire pressure at Least
once per month and also check it
before every Long drive.
~Always check the tire pressure
when the tires are
cold. Do not
reduce the pressure if it increas­
es when the tires are warm.
~check the Labe l¢
fig. 172 for
the correct tire pressure based
on vehicle Load.
..,Correct the tire pressure if nec­
essary.
~vehicles with Tire Pressure Moni­
toring System*: store the modi­
fied tire pressure in the Infotain-
ment system ¢
page 215. ""'