M N
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N 1.1'1 ,....,
~ Open the engine hood¢ page 191 .
~ Open the cover on the positive pole ~ fig. 166.
~ Connect the charger connectors accord ing to
the instructions to the
jump sta rt bolts . (Bolts
under the cover= "posit ive", Bo lt s with hex
head = "negat ive") .
~ Only now plug the ma ins lead for the charg ing
equipment into the wall outlet and turn it o n
~& -
~ Mak e sure the charging rate i s not o ver
30 amp s/14 .8 Volt .
~ When the battery is fully charged: Turn the
charging equipment
off and remov e the mains
l ead from the wall outlet.
~ Now remove the clamps for the charging equip-
ment.
~ Close the cover on the posit ive pole .
~ Close the hood 9 page 191.
A discharged battery can freeze at temperatures
of only 32 °F (0 °C). Allow a frozen battery to
thaw comp letely before attempting to charge it
9 & . However, we recommend not using a
thawed batte ry agai n because the batte ry casing
can be cracked due to ice forma tion a nd ca n leak
battery a cid.
Battery charging (Maximum charging rate of
30 amps /14.8 Volt )
When charging at low voltages (e.g. w ith a trickle
c harger ),
the battery cab les do not have to be
d isconnected first. The batte ry caps sho uld
not
be opened when charging a battery.
It is not necess ary to remove the ba tte ry from
t he luggage compa rtment.
Fast charging the battery (charging rate
above 14.8 Volts)
F or technica l reasons do no t use a ba ttery charg
e r that uses voltage grea ter than 14.8 Vol ts to
charge your vehicle's battery .
A WARNING
Charging a battery can be dangerous.
- Always fo llow the operating instructions
provide d by the batte ry charge r manufactur
er when c harging your battery.
Checking and Fillin g
-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 wh ich were frozen.
The battery housing may have cracked and
weakened whe n the battery froze.
- Charge the battery in a well ventilated area.
K eep away from open flame or electrical
spark. Do not smoke. Hydrogen gas gene rat
ed by the ba tte ry is explosiv e.
- To reduce the danger of explosion, never
connect or d iscon nect charger cab les wh ile
the charge r is operating.
- Fast cha rging a batte ry is dange rous and
should only be at tempted by a compe tent
technicia n w it h the proper eq uipment.
- Battery acid that may sp ill dur ing cha rging
should be washed
off with a solut io n of
warm water and baking soda to neutralize the a cid .
@ Note
Neve r use a fast charger as a booster to start
the e ng ine . T his w ill ser iously damage sensi
tive elec tronic components, s uch as co ntrol
units , relays, radio, etc. , as we ll as the battery
cha rger.
Battery replacement
The new battery must have the same specifica
tions and dimensions as the original equipmen t
battery.
Intelligent energy management in your vehicle is
r esponsible for distributi ng the elect rical energy
t hr ough out your veh icle
9 page 175. T he intelli
gen t energy management sys tem w ill keep the
engi ne battery cha rged better then vehicles with
out this system . To make s ure t he addit iona l elec
trical energy is avai lab le once again after yo u
have changed the battery, we recommend that
you install bat teries of the same type and manu
facture on ly (the same as those installed at the
t ime you r vehicle was del ivered) . Specificat ions
are listed on the battery hous ing . You r autho r
i z ed Audi dea ler m ust code t he battery in the en-
ergy ma nagement system to en able you to use .,,.
203
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 206 .
You may not find
this information on all tires be
cause it is not required by la w.
2 10
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 220.
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 214 , Treadwear indicator
for mo re information on measur
ing t ire wear.
_& WARNING -
-Only use tire/rim combinations 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
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 abso
lutely necessary and drive
carefully when doing so.
-If you install wheel covers on
the vehicle, make sure they al low enough air circulation to
Wheels
cool the brake system. If they
do not, this could increase the
risk of an accident.
Tire wear/damage
Fig. 169 Tire profile: Treadwear indica
tor
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.
213
...
Wheels
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 ¢
fig. 169. The letters "TWI"
or triangles on the tire sidewall
indicate the location of the tread
wear indicators .
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 ¢.&.
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¢ page
231.
1> Obey any applicable regulations in your
country.
2 14
H idden 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 Aud i deal
er 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. 170 Driver 's side B -pillar : tire pres
sure label
"'
-,,--------------------,.
9c:=:=. ~_:: I =:: I :.. I)@ :l! n. ...... _..,_ ... ___ ......, ____ .... _ ..
ui ............... ~-.... ~ .... .... ...
TR IIZI. 00lO TW.PMSIUl'll '""' ONiNSIC)N$ ,...._0UntlUSAN1011
-KPA. . PSI
Fig. 171 Tire pressure label
The correct tire pressure for tires
mounted in the factory and for
the spare tire* is indicated on a la
bel. The labe l is located on the 8-
pillar
¢fig. 170, ¢fig. 171.
Use the tire pressure specified for
a normal vehicle load when the
vehicle is partially loaded
¢page 216. If driving the vehicle
when fully loaded, you must in crease the tire pressure to the
maximum specified pressure¢
A-
Checking/correcting tire
pressure
Wheels
.. 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 label¢
fig. 171 for
the correct tire pressure based on vehicle load.
..Correct the tire pressure if nec
essary .
.. Vehicles with Tire Pressure Moni
tor ing System*: store the modi
fied tire pressure in the Infotain
ment system ¢
page 224.
.. Check the pressure in the emer
gency tire* /spare t ire*. Always
ma intain the maximum temper
ature that is specified for the
tire.
A WARNING
-
Always adapt the tire pressure
to your driving style and vehicle load.
-Overloading can lead to loss of vehicle control and increase
the risk of an accident. Read
and follow the important
safety precautions in
215
M N
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Wheels
Model Tire designation Tire pressure
Engine normal load condition full load condition
(up to 2 occupants)a>
front rear front rear
PSI kPA PSI kPA PSI kPA PSI kPA
AS Coupe: 225/50 Rl 7 94H
32 220 29 200 33 230 33 230 2.0 liter All Season
4-cylinder 245/45 Rl 7 95H
All Season
32 220 29 200 33 230 33 230
245/40 Rl8 93H
33 230 29 200
35 240
35 240 All Season
255/35 Rl9 96Y
32 220 3 2 22 0 33 230 33 230 High Performance
SS Coupe: 245/40 Rl8 93H
36
250 30 210 39 270 36 250 3.0 liter All Season
6-cylinder
245/40 Rl8 93Y
High Performance
38 260 32
220 41 280
38 260
255/35 Rl9 96V
38 260 32 220
41
280 38 260 High Performance
XL= reinforced or extra load tire . It may also appear as xl, EXTRA LOAD, or RF on the tire sidewall.
a) 2 people in the front
.8, WARNING
Please note the important safe
ty precautions regarding tire pressure¢
page 215 and load
limits¢
page 217.
Tires and vehicle load limits
There are limits to the amount of load or weight that any vehicle
and any tire can carry. A vehicle
that is overloaded will not handle
well and is more difficult to stop.
Overloading can not only lead to
loss of vehicle control, but can al
so damage important parts of the
vehicle and can lead to sudden tire failure,
including a blowout
and sudden deflation that can
cause the vehicle to crash.
Your safety and that of your pas
sengers also depends on making
sure that load limits are not ex
ceeded. Vehicle load includes ev
erybody and everything in and on
the vehicle. These load limits are
technically referred to as the vehi cle's
Gross Vehicle Weight Rating
("GVWR").
The "GVWR" includes the weight
of the basic vehicle, all factory in
stalled accessories, a full tank of
fuel, oil, coolant and other fluids ""
217
Wheels
plus maximum load. The maxi
mum load includes the number of
passengers that the vehicle is in
tended to carry ("seating capaci
ty") with an assumed weight of 150 lbs. (68 kg) for each passen
ger at a designated seating posi
tion and the total weight of any luggage in the vehicle. If you tow
a trailer, the weight of the trailer
hitch and the tongue weight of
the loaded trailer must be includ
ed as part of the vehicle load .
The
Gross Axle Weight Rating
("GAWR") is the maximum load
that can be applied at each of the
vehicle's two axles.
The fact that there is an upper
limit to your vehicle's Gross Vehi
cle Weight Rating means that the
total weight of whatever is being
carried in the vehicle (including
the weight of a trailer hitch and
the tongue weight of the loaded
trailer) is limited . The more pas
sengers in the vehicle or passen
gers who are heavier than the
standard weights assumed mean
that less weight can be carried as
luggage.
The Gross Vehicle Weight Rating and the Gross Axle Weight Rating
218
are listed on the safety compli
ance sticker label located on the
driver's side B-pillar
¢ page 215,
fig . 170.
.&_ WARNING ~ -
Overloading a vehicle can cause
loss of vehicle control, a crash
or other accident, serious per
sonal injury, and even death.
-Carrying more weight than your vehicle was designed to
carry will prevent the vehicle
from handling properly and in
crease the risk of the loss of
vehicle control.
-The brakes on a vehicle that
has been overloaded may not
be able to stop the vehicle
within a safe distance .
-Tires on a vehicle that has been overloaded can fail sud
denly, including a blowout and
sudden deflation, causing loss
of control and a crash.
-Always make sure that the to tal load being transported -
including the weight of a trail
er hitch and the tongue
weight of a loaded trailer
does not make the vehicle
heavier than the vehicle's
Gross Vehicle Weight Rating.
Wheels
A WARNING
Wheel bolts that are tightened or repaired incorrectly can become loose and result in loss
of vehicle control , which increases the risk of
an accident. For the correct tightening specifi
cation, refer to
c:> page 22 7, 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 repair
facility. Never repair or disassemble rims
yourself, because this increases the risk of an accident.
Winter tires
Winter tires significantly improve the vehicle's handling when driving in winter conditions . Be
cause of their construction (width, compound,
tread pattern), summer tires provide less traction
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
c:> .&,.
Your authorized Audi dealer or authorized re
pai r facility can inform you about the maximum
permitted speed for your tires .
.., Check the tire pressure after installing wheels
c:> page 215.
The effectiveness of winter tires is reduced great
ly when the tread is worn down to a depth of
0 .1S7 inch (4 mm). The characteristics 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 t ires. This could cause
the tires to heat up too much . This increases
the risk of an accident because it can cause
the tire to burst.
220
- 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 provide 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 win
ter tires w ith the
& symbol may be permit
ted.
· 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 driv
ing with snow chains . Do not exceed 30 mph
(SO km/h) .
Snow chains 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 combinations due to technical reasons.
Check with an authorized Audi dealer or author
ized repair facility to see if you may use snow
chains .
Use
fine-mesh snow chains. They must not add
more than 0.53 inch (13.S mm) in height, includ
ing the chain lock.
You must remove the chains when driving on
roads that are
free of snow. When roads are free
of snow, snow chains can impair handling and .,.