Winter operation
The cold time of year places a special strain on
the battery, resulting in reduced starting pow
er. So before the cold weather starts, have the battery inspected and charged as necessary.
A WARNING
-All work on the battery requires technical knowledge. Please contact an authorized
Audi dealer or another authorized facility
for questions about the battery -danger
of acid burns and explosion hazard!
- The battery must not be opened! Do not try to change the battery's liquid level,
otherwise detonating gas will escape
from the battery- explosion hazard!
Working on the battery
®
~
I
@
®
Always wear eye protection.
Battery acid contains sulfuric
acid. Always wear gloves and eye
protection.
No
- sparks
- flames
- smoking.
When a battery is charged, it pro
duces hydrogen gas which is ex plosive and could cause personal
injury.
Always keep the battery well out
of reach of children.
The following WARNINGS are very important
when working on the battery:
A WARNING
Whenever working on the battery or on
the electrical system, there is the risk of injury, accident and even fire. Read and
heed the following WARNINGS:
- Always wear eye protection . Do not let
battery acid or any lead particles get on
your skin or clothing. Shield your eyes.
Checking and filling 179
Explosive gases can cause blindness or
other injury.
- Battery acid contains sulfuric acid. Sulfu
ric acid can cause blindness and severe
burns.
- Always wear gloves and eye protection.
Do not tilt the battery because acid
could leak out of the ventilation open
ings.
- If you get battery acid in your eyes or
on your skin, immediately rinse with
cold water for several minutes and get medical attention.
- If you should ingest any battery acid,
seek medical attention immediately.
- Do not expose the battery to an open
flame, electric sparks or an open light.
- Do not smoke.
- Do not interchange the positive and neg-
ative cables.
- When working on the battery, be sure
not to short-circuit the terminals with
tools or other metal objects. This would
cause the battery to heat up very quickly,
which could lead to damage or explosion
and personal injury.
- When a battery is charged, it produces
hydrogen gas which is explosive and
could cause personal injury.
- Always keep the battery well out of the
reach of children.
- Before work is done on the electrical sys
tem, disconnect the negative ground ca
ble.
- Before performing any work on the elec trical system, switch off the engine and ignition as well as any electrical equip
ment. The negative cable on the battery
must be disconnected. If you are just go
ing to replace a light bulb, then it is
enough to switch off the lights.
- Before disconnecting the battery, switch
off the anti-theft alarm system! Other
wise you will set off the alarm.
- When disconnecting the battery, first
disconnect the negative cable and then
the positive cable.
•
•
~ Install the battery cover.
~ Close the luggage compartment lid
¢page 37.
When charging at low voltages (e.g . with a
trickle charger ), the battery cables do not
have to be disconnected first. Before charging
at
high voltages, i.e. "fast charging", you
must disconnect both cables. In either case,
follow the instructions from the manufacturer
of the charger .
Fastcharging a battery is
dangerous ¢ & in
Working on the battery on page 179 .
It re
quires special charging equipment and the knowledge to go with it. We recommend hav
ing your battery fast charged only by a quali
fied workshop.
A discharged battery can
freeze at tempera
tures of only 32 °F (0 °C) . Allow a frozen bat
tery to thaw completely before attempting to
charge it¢ & . However, we recommend not
using a thawed battery again because the bat
tery casing can be cracked due to ice forma
tion and can leak battery acid .
Do not open the battery caps when charging
the battery.
_& WARNING
-
Charging a battery can be dangerous.
- Never charge a frozen battery .
It may ex
plode because of gas trapped in the ice.
Allow a frozen battery to thaw out first.
- Do not reuse batteries which were fro
zen. 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 elec
trical spark. Do not smoke. Hydrogen gas
generated by the battery is explosive.
- To reduce the danger of explosion , never
connect or disconnect charger cables
while the charger is operating.
- Fast charging a battery is dangerous and
should only be attempted by a compe
tent technician with the proper equip ment.
Checking and filling 181
- Battery acid that may spill during charg
ing should be washed off with a solution
of warm water and baking soda to neu
tralize the acid .
@ Note
Never use a fast charger as a booster to
start the engine. This will seriously dam
age sensitive electronic components, such
as control units, relays, radio, etc ., as well
as the battery charger .
(D Tips
-The vehicle battery must not be charged
with a standard small charger that plugs
into the cigarette lighter or outlet .
- Only charge the battery through the con
nections in the luggage compartment.
Replacing the battery
The new battery mus t have the same specifi
cations as the old one.
Your vehicle is equipped with an intelligent
energy management system for distributing
electricity¢
page 147 . The battery charges
better in vehicles with the energy manage
ment system than in vehicles without the sys
tem . To ensure that the additional power is
available after replacing the battery , replacing
with the same type of battery from the same manufacturer (like the battery that was deliv
ered with the vehicle) is recommended. An au
thorized dealer must code the battery in the
energy management control module.
The new battery must have the same capacity,
voltage (12 volts), current and design and it
must be sealed with plugs. The battery must
conform to the standards TL 825 06 (from
April 2008) and VW 7 SO 73 (from April 2010).
Since the vehicle battery is difficu lt to reach,
we recommend having the battery replaced by
an authori zed Audi RB dealer or other quali-
fied workshop . ..,. •
•
Checking tire pressure
The correct tire pressure for the tires original
ly installed on your vehicle is listed on the tire
pressure label located on driver's side 8-pil lar.
The recommended t ire pressures are on the
tire pressure label and in the table
r:=> page 187, Cold tire inflation pressure . T his
means that the pressure must be checked and
a d ju sted when the tire has not been driven for
mo re than a couple of mi les (kilometers) at
l ow speeds during the p revious three hours.
Air in the tires expands when the tire heats up
as a result of internal fr iction as it flexes in
use. The tire pressure is higher when the tire
h as warmed up than when it is "cold".
It is the inflation pressure in a "cold" tire that
counts. Therefore, you shou ld never let air out
of a warm tire to match "Cold tire inflation pressure" recommendations
c> page 187. The
tires would then be under infla ted and could
fa il suddenly.
The tire pressure label on yo ur Audi lists t he
recommended cold t ire inflat io n pressures for
the new, or igina l equipment tires that were
on your vehicle at the t ime it was manufac
tured. For the location of the label
r=> page 187, fig. 148.
Most tires lose a ir natu rally over time. They
can also lose some a ir if you dr ive ove r a pot
h ole o r hit a curb while pa rking.
It is usua lly
n ot poss ib le to see whe ther the radial t ires
used today a re underi nflated just by looking
at them.
Therefore, be sure to check tire pressures at
l east o nce a month and always before going
on a long trip. Make sure to take the number
of people and the amount of luggage into ac
count when adjusting tire pressure for a trip -
even one that you would not consider to be
"long". See r:=>page 190, Tires and vehicle
load limits for more important information.
Always use an accurate tire pressure gauge
when check ing and adjusting inflation pres
sures . Check all of the t ires. If the pressure in
Tire s an d wheel s 189
any tire is too high when the tire is "cold", let
air out of the tire slowly with the edge of the
tire ga uge and keep checking the pressure un
ti l yo u reach the pressure that is correct for
the load (passengers and luggage) and kind of
driv ing you plan to do .
If the pressure in any ti re is too low, note the
difference between the pressure in the cold
tire and the pressure you need and add the air
that you need to reach the correct pressure for
t h e ve hicle load (passenge rs and luggage) for
the tires on your vehicle as l isted on the on
you r vehicle and in this ma nual a nd the k ind
of d riving you plan to do.
Never ex ceed the max imum inflation pres
sure listed on the tire sidewall for any rea
s on.
Remember that the vehicle manufacturer, not
t h e tire manu factu rer, determines t he correct
ti re p ressu re fo r th e tires on your ve hicl e.
It is important to check the t ire pressure when
the tires are co ld .
- Read the required tire pressure from the t ire
pressure labe l located on drive r's side B-pil
lar.
- T urn the va lve stem cap counter-clockw ise
to remove it from the tire va lve.
- Place the air pressure gauge on the valve.
- The tire pressures should o nly be checked
and ad justed when the tires are co ld . The
slightly raised pressures of warm tires must
not be reduced.
- Adj ust the tire pressure to the load you are
carrying.
- Reinstall the valve stem cap on the va lve.
When should I check the tire pr essu re?
T he co rrect ti re pressu re is especially impor
t a nt a t high speeds. The pressure should
therefore be checked at least once a month
and always before starting a jo urney .
When should I adjust the tire pressures ?
Adjust the tire pressure to the load you a re
ca rrying. After chang ing a whee l
or replacing .,..
•
•
soon as possible, and inflate them to the
proper pressure . Driving on a significant ly un
der-inflated tire causes the tire to overheat
and can lead to tire failure. Under-inflation a l
so reduces fuel efficiency and tire tread l ife,
and may affect the veh icle 's handling and
stopping ab ility.
Please note that the TPMS is not a substitute
for proper t ire maintenance, and it is the dr iv
er's responsib ility to ma inta in correct t ire
p ress ure , even if under- inflation has not
reached the leve l to t rigger illumination of the
TPMS low tire pressure telltale .
Your veh icle has also been equ ipped with a
TPMS malfunction indicato r to indicate when
the system is not ope rating properly. The
TPMS malfunc tion indica to r i s combined wi th
the low t ire pr essu re tellta le. When the sys
tem detec ts a ma lf u nct ion, the te lltale will
flash for approximately one minute and then remain continuo usly ill uminated . This se
q uence will continue upon subsequent vehicle
start-ups as long as the malfunction ex ists.
When the malfunction indicator is ill uminat
ed, the system may not be able to detect or
signa l low t ire pressure as intended . TPMS
malfunct ions may occ ur for a variety of rea
sons, including the ins talla tio n of replace
ment or a lternate tires o r whee ls on the veh i
cle that prevent the TPMS from funct io ni ng
p roperly . Always check the TPMS malfunct ion
t ellta le afte r replacing one o r more t ires or
wheels o n your veh icle to ensure tha t the re
p lacemen t or a lternate tires and wheels allow
the TPMS to continue to function properly .
Introduction
The tire pressure monitoring system monitors
air pressure in all four road wheels while the
vehicle is moving .
As soon as the tire pressu re mo nitor ing sys
tem senses a s ignificant loss of a ir pressure in
one or severa l ti res, text messages and yellow
symbo ls appear in the instr ument cluster dis
p lay to alert the driver. The
[ti warning light
Tire s an d wheel s 201
in the instrument cluster comes on when the
ti re is significant ly underinflated .
T he wa rni ng lig ht
[ti also illu minates i n the
case of a system mal funct io n.
Be aware that t ire pressure is a lso dependent
o n the tempe ratu re of the t ire. For eve ry 18 ° F
(10 °C) incre ase in tir e te mper ature, tire pres
s u re inc reases by about 1.5 psi (0 .1 bar). The
ti re warms up while the ve hicle is moving and
tire p ress ure rises . So you sho uld ad just tire
pressure only when they a re
cold, when the
temperature of the tires is ro ughly the same
as the ambient a ir temperature.
In order to keep the tire press ure monito ring
system p roperly ca librated, t ire press ure on
all four tires sho uld be checked at regu lar in
terva ls.
The tire pressure is shown on the label located
on the dr iver's side B-pillar (v is ib le when the
door is open) .
A WARNING
When the tire pressure mo nitoring system
war ning light is lit , one o r m ore of your
tires is s ignificantly under-infla ted . You
shou ld stop and check your tires as soon as
pos sib le, and in flate t hem to the proper
p ress ure a s in dic ate d on the ve hicle's ti re
p ress ure lab el
¢page 187. Driving on a
significantly under -inflated ti re causes t he
tire to over heat and can lead to tire failure .
Under-inflat ion also is like ly to impair the
vehicle's handling and stopping ab ility.
@ For the sake of the environment
D riving wit h un der -inflated tires red uces
fuel efficiency an d tire t read life.
(D Tips
- E ach tire should be chec ked monthly
w hen the tem perature of the tires is
about the same as amb ient a ir tempera
t u re and set to the recommended infla
tion press ure as specified on the tire
pressure label¢
page 187.
•
•
202 Tire s and whee ls
- The tire pressure monitoring system
helps the driver to keep an eye on tire
pressures. But the driver st ill has the re
spons ibility for maintaining the correct
tire pressure.
- Tire pressure must only be adjusted
when the temperature of the tires is
about the same as ambient air tempera
ture.
- When t ires are replaced, the sensors and
valves should not be exchanged . The
valve core, nut, valve sealing and seal
washer (rep lacement kit) needs to be re
placed. If necessary, the valve and the
whee l electronics have to be rep laced.
- The tire pressure monitoring system on
your Audi was calibrated us ing tires w ith
"RO" identification. We recommend us
ing these tires.
- If you should put different whee ls and
ti res on yo ur vehicle (e.g. w inter wheels
and tires), yo u m ust be certain that the
whee ls and tires are compatible with the
tire pressure monitoring system . Other
wise the system w ill reg ister a ma lfunc
tion and a fault message will be d is
played . For more information, contact
your authorized Audi dealer .
- For Declaration of Compliance to United
States FCC and Industry Canada regula
tions
~ page 222 .
Programming a new set of tires
App lies to vehicles: with tire pressure monitoring system
When driving with a new set of ti res, you can
program them to the t ire pressure monitoring
system using the menu disp lay.
"' Turn the ign ition on.
"' Se lect the menu :
Set> Tir e pr essu re >
Wh eel cha ng e.
"' Co nfirm that you wou ld like to begin the
programming process. The message
Wh eel
s en sors a re being in it ia lised. Thi s ma y ta ke
a fe w minute s .. .
appears in the instrument
cluster disp lay. You can switch between programmed tire sets
at any time without reinitializing the system .
(D Tips
If the programming process was not com
pleted successfully, the message
Wheel
s en sors could not be initi alis ed
appears in
the disp lay and the
IIQIS, indicator light
turns on. If this happens, repeat the pro
cedure.
.. Remove the "max. 50 mph" (80 km/h)
sticker from the sealant bottle and affix it to
the instrument cluster in the dr iver's view.
A WARNING
- Turn the hazard flashers on if you have a
flat tire in moving traffic. In this way you
protect yourself and other road users .
- Make sure that all passengers are in a
safe place, out of the dange r zone (fo r
example, behind a guard ra il).
(D Note
Part icular care is necessary if you are mak
ing a t ire repair on a steep incline.
@ Tips
Obey all laws.
Making a tire repair
Tire repair consists of the following sections.
F ig. 154 Parts of the Tir e Mob ility System
Fig . 1 55 Con nector for the Ti re Mob ility System
l) The e lectr ic a ir pump s houl d never r un for long er than
8 m inute s.
What do I do now ? 205
Assembling Ti re Mobility System
.. Open the lid@ of the e lectr ic air p ump
<:!) fig. 154 .
.. Pull the plug @and the pressure hose ®
w ith the gauge out of the housing .
.. Screw the pressure hose ® of the electric
air pump onto the flange @ of the sealant
bott le @ .
.,. Push the sea lant bottle w ith the flange
down into the recess ® on the lid of the
electric a ir pump.
.. Remove the d ust cap from the va lve of the
defe ctive tire .
.. Screw the hose(§ onto the va lve
0
c::> fig. 155.
.. Insert the plug@¢ fig. 154 into the socket
for the c igarette lighte r.
Inf lating tire
.. Move the switch @ ¢ fig. 155 on the elec
tric air pump
l} to position I. After 5 mi
nutes, tire pressure m ust have reached at
least 1.8 bar .
.. Switch the e lectric air pump off -sw itch in
position
0 . If the required tire pressure of at
least 1.8 bar has not been reached, follow
th e instruct ions in the section
Re-inflating
tire .
Re-inflating tire
.. Remove the hose from the valve and pull
the plug out of the socket.
.. Dr ive the veh icle slowly 10 meters back
ward o r fo rward . This helps to d istribute the
sealant bette r .
.. Remove the empty infla tion bot tle and
s crew the hose ®® ¢
fig. 154 from the
electric pump directly onto the va lve .
.. Insert the plug @ into the socket for the
cigarette lighter .
.. Move the switch @
c::> fig. 155 on the elec
tr ic air pump
l} to position I. After 5 mi
nutes, tire pressure must have reached at
least 1.8 bar.
208 What do I do now ?
-On hard, slippery surface (such as tiles)
use a rubber mat or similar to prevent
the jack from slipping.
- To help prevent injury to yourself and
your passengers:
- D o not raise the vehicle u nti l yo u a re
sure the ja ck is sec urely engaged.
- P assenge rs must not rema in i n the ve
h icl e when it is ja ck ed up.
- M ake sure t hat passengers wait in a
safe p lace away fro m the vehicle and
well away from the road and traffi c.
- M ake sur e jac k position is correct, ad
just as necessary and then co ntinue to
r ai se the j ack .
CD Note
A floo r jack or the pads o n the hoist arms
m ust
not be posit ioned at the points
s hown
-arrows-.
Remov ing the wheel
Follow these instructions step-by-step for
changing the wheel.
F ig. 1 59 Whee l change: alignment pin inside the top
hole
Afte r you have loosened a ll wheel bolts and
ra ised the veh icle off the ground, perform the
following steps to remove a nd rep lace the
wheel :
Removing the wheel
" Use the hexagonal socket in the screwdri v
er handle
to comp lete ly tu rn out the top
most wheel bo lt and set it as ide on a
clean
surface. "
Sc rew the th readed end of the
alignment
pin
from th e tool kit hand-tight into t he
now vacant bolt ho le
c::> fig . 159.
" Then complete ly unscrew the other wheel
bolts as described above.
" Take off the whee l leaving the a lignment
p in in the bolt hole
c::>(D .
Putting on the wheel
" Lift the spare whee l and carefully s lide it
over the alignment pin to guide it in place
c::>(D .
" Use the hexagonal socket in the screwdriver
ha ndle to screw in and tighten a ll whee l
bolts
slightly .
" Uns crew the alignment p in and insert and
tighten the rem aining wheel bol t slightly
like the res t.
" Tur n t he jack hand le co unter-clockwise to
lower the vehicle until the jack is fully re
leased.
T he wheel bo lts must be clean and turn easily.
Check the contact s urfaces of whee l and hub.
Remove contaminants on these surfaces be
fore insta lling the w heel.
T he hexagonal socket in the screwdriver ha n
dle makes it easier to handle the w heel bo lts.
The reversible blade should be removed.
When mounting
unidirectional ti res, observe
the d irection o f rotation
c::> page 206.
CD Note
W hen remov ing or inst alling the whee l,
t he r im cou ld hi t the b ra ke ro tor and dam
age the ro tor . Wor k caref ully an have a
second pe rson hel p you.
(D Tips
Neve r use the he xagona l socket in the han
d l e of t he screwdriver to loosen or tighten
the wheel bo lts .
210 What do I do now?
connected to the battery of another veh icle,
using a pair of jump er cable s to start the en
g ine.
Both batter ies must be rated at 12 vo lts. The
ca pacity (Ah) of the booster battery must not
be substantially less than the capacity of the
d ischarged battery .
J umper cables
Use
only jumper cables of sufficiently large
cr oss sec tion to safely carry the starter cur
rent . Re fer to the manu facturer's specifica
tions .
Use only jumper cables which have
insulated
termina l clamps and are properly marked for
distinction :
plu s(+) ca ble: in most cases co lored red
minu s(-) ca ble: in most cases colored black
A WARNING
Batteries contain electricity, ac id, and gas .
Any of these can cause ve ry serious or fatal
injury. Follow the instructions below fo r
safe handl ing of your veh icle's battery.
- Always shield you r eyes and avoid lean
ing over the batte ry whenever possible.
- A discharged battery can already freeze
a t temperatures just be low 32 ° F (0 °C).
Before connecting a jumper cable, the
frozen battery must be thawed com
pletely, otherwise it could exp lode .
- Do not a llow battery ac id to contact eyes
or s kin. Fl ush any contacted area w ith
water immediately .
- Improper use o f a booster battery to
start a ve hicle may cause an explosion.
- Vehicle batteries gene rate explos ive gas
es . Keep sparks, flame and lighted ciga
rettes away from batteries .
- Do not try to jump s tar t any veh icle with
a low acid level in the battery.
- Th e volt age of the booster battery must
also have a 12-Volt rating . The capacity
(Ah) of the booster battery shou ld not be
lower than that of the discharged bat
tery. Use of batter ies of different voltage or substantially d
iffe rent "Ah" rating
may cause an exp losion and persona l in
jury.
- Never charge a frozen battery. Gas trap
ped in the ice may cause an explosion.
- Never charge or use a battery that has
been frozen . The battery case may have
be weakened .
- Use of batter ies of different voltage or
substantially d ifferent capacity (Ah) rat
ing may cause an exp losion and injury.
The capac ity (Ah) of the booster battery
should not be lower than that of the dis
charged battery.
- Before you check anything in the engine compa rtment, always read and heed a ll
WARNINGS
,=;, page 169, Working in the
engine comportment.
(!) Note
- App lying a higher voltage booster bat
tery will cause expens ive damage to sen
sitive e lectronic components, such as
cont ro l uni ts, relays, rad io, etc.
- There must be no electrical contact be
tween the vehicles as otherwise cur rent
c o ul d already start to f low as soon as the
positive( +) terminals are connected.
(D Tips
- T he d ischa rged ba ttery m ust be properly
c onnected to the veh icle's e lectr ica l sys
t em.
- Switch off any car phone, o r follow the
car phone instructions for th is si tuat ion.