2011 AUDI A3 charging
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Airbag system !.!r
This warning/indicator light monitors the airbag and the
tensioner systems.
The !! r warning light i llum inates for a few seconds each time you
switch on the ign ition.
If the
! !r warning light does not go out, or if it illum inates while you
are d riving, or i f it s tarts to flash, t hen there is a m alfu nct io n some
where in the system . If the light does not illum inate when you switch
on t he ignition, this also means there is a malfunction.
& WARNING
If you have a malfunction in the airbag sy stem, contact your
authorized Audi dealer immediately. Otherwise the airbag or the
belt tensioner ma y not work properly in an accident. •
Generator 0
This warning/indicator light detects a malfunction in the
generator or in the vehicle 's electrical syst em .
Th e D war ning/in dica tor lig ht ill uminates when you swit ch on t he
ign ition and must go out a fter the engine has started.
If the D war ning/ind ic at or ligh t illumina tes whi le you are d riving,
you shou ld contact you r auth o rized Audi dealer . Since the ve hicle
battery is discharging, you shou ld switch off any unnecessary elec
t rical consume rs (fo r example , the air condi tioner) .•
Controls and equip
ment Safety first
Instruments and warning
/indicator lights
Safety belts ,ft-
This warn ing/indic ato r light remind s you t o put on yo ur
safety belt.
The 4'-wa rning/ind icator light illuminates when the ignition is
s w itched on to re mi nd the driver and (o n USA models only) any fro nt
passenger to put on the sa fety belt. Additionally, an acoustic warn ing
(gong) will a lso s oun d.
For more Information=>
page 135, "Safety belt wa rning light .t" . •
Brake system
BRAKE (USA)/ (CD) (Canada)
T his warn in g/in dic ato r ligh t ill umin ates whe n t he br ake
flui d level is t oo lo w o r w he n t here is a ma lfunction in the
AB S, or whe n the pa rking b rake is s et.
T he light illuminates w hen the ign it io n is tu rned on . It goes out after
t he engine has bee n sta rted and th e p arki ng bra ke is f ully re le ase d.
T hi s indicates that t he bra ke warning light is functioning properly.
If the brake warning light does not light up when the engine is
cranking or the parking brake is appl ied , there may be a malfunc
tion in the electrical system. In this case , contact your Audi dealer .
If the ABS f ails, the A BS war ning/ indicato r light 5 (USA
models)/ (Canada mode ls) flashes toget her w it h the brake system
w ar ning/indica tor ligh t=> & .
(USA models): If the warning light
BRAKE and the warni ng lig ht illu
m inate together, immediate ly contact your authorized Audi dealer or
qualified workshop to have all brake pads inspected=>
page 35.
Whe n the light comes on, an aud ible warn ing si gna l is also given .
Parking brake set
The BRAKE warning/indicator light i lluminates when the par king brake
is set=> &. _,.
Vehicle care Technical data
Page 225 of 320
________________________________ _:_F..=u :.:e :.: l:....: s:..: u=.!::.!: PP :..:l:!.y .....:a=- n :....:..= d:.... f:....: i..::. ll .:..i.:..n -=g ~ y_o _u_ r __ fu_ e_l _t _a _n_ k __ _
To avoid fuel s pillin g or evapo ra ti ng from t he f uel tank a lways clos e
f ue l fi ller ca p p rope rl y and compl ete ly . A n imp rop erly close d f uel
f iller cap may also ca use a message in t he driver information sys tem
or ca use the MIL lamp =>
page 20 to come on.
& WARNING
Improper refueling or handling of fuel can cause fire, explosion
and severe burns .
• Fuel is highly flammable and can cause severe burns and other
injuries.
• Failure to shut the engine off while refueling and/or to insert
the pump nozzle fully into the fuel filler neck could cause fuel to
spray out of filler neck or to overflow. Fuel spray and overflowing
fuel can cause a fire.
• Never use a cellular telephone while refueling. The electromag
netic radiation can cause sparks that can ignite fuel vapors and
cause a fire.
• Never get back into your vehicle while refueling. If in excep
tional circumstances you must get back
in your vehicle while refu
eling, make certain that you close the door and touch metal to
discharge static electricity before touching the filler nozzle again.
Static electricity can cause sparks that can ignite fuel vapors
released during refueling .
• Never smoke o r have an open flame anywhere
in or near your
vehicle when refueling or filling a portable fuel container .
• For your safety , we strongly recommend that you do not travel
with a portable fuel container in your vehicle . The container, full
or empty may leak and could cause a fire , especially
in a crash.
• If, under exceptional circumstances, you must transport a
portable fuel container , please observe the following:
- Never fill a portable fuel container while it is anywhere in or
on the vehicle (for example, in the luggage compartment, or
on the trunk ). Static electricity can build up while filling and
can ignite fuel vapors causing a fire.
Safety first
& WARNING (co ntinued )
-Alw ays place a portable fuel container on the ground before
filling .
- Always keep the filler nozzle completel y inside the portable
container before and during filling .
- If filling a portable container made of metal, the filler nozzle
must always be in contact with the container. Th is will help
prevent static electricity from discharging and cause a fire .
- Never spill fuel inside the veh icle or luggage compartment.
Fuel vapors are highly flammable.
- Always observe local and state/provincial laws regarding the
use, storage and tran sportation of fuel containers .
- Make certain the fuel container meets industry standards
(ANSI/ ASTM F8S2-86).
(D Note
• If any f uel has spilled onto the car, it s hou ld be rem oved immed i
ately to p revent damage to the pa int.
• If the fue l tank runs co mplete ly empty in a ve hicle wit h a
die sel
engine ,
the ignit io n must remai n switched on for at least 30 seconds
after refueli ng befo re st arting t he e ngine .
It may take longer than
usual for the eng ine to start, even up to a mi nute. This is because the
air m ust firs t bleed o ut of t he fuel sys tem w hen s tarting t he eng ine.
For the sake of the environment
As soon as the correctly o pera ted no zzle swi tc h es off a utomat ic all y
for t he first t ime, the tan k is full. Do not try to add mo re fuel because
fue l m ay s pill ou t. In addi tion, the ex pansion s pace in the fuel tank
w ill be fi lled - caus ing t he fue l to overf low w hen it becomes warm and
poll ute the environment. ..,
Vehicle care Technical data
Page 241 of 320
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nected. These functions have to be relearned after the battery termi
nals are connected again. To prevent this, the battery should only be
disconnected from the vehicle electrical system if absolutely neces
sary.
Power window one-touch
up/down function
Reprogramming
~ page 51, "Reactivating the sys
tem after battery disconnection"
Master key with remote control Synchronization~
page 43
Digital clock ~ page 9
ESP indicator light The indicator light goes out after
driving a few meters
Vehicles not driven for long periods and short
distance operation
If you do not drive your vehicle for several days or weeks, e lectrical
consumers are gradually scaled back or switched off. Th is reduces
energy use and ensures the vehicle will be able to start after long
periods of time~
page 194. Some convenience functions such as
opening with the remote control key may not be available. These
convenience functions will be available again once you switch the
ignition on and start the engine. Even when consumers are switched
off, the battery will become deeply discharged by stand-by power
consumers if the vehicle is not driven for several months . Deep
discharging results in a chemica l reaction that destroys the inside of
the battery. The battery must be charged every month to prevent th is
~ page 241. Do not disconnect the battery or the anti-theft alarm
system* will not work.
Winter operation
Cold weather places higher demands on the battery. This results in
reduced starting abi lity. Have the battery checked and recharged if
necessary before the cold weather beg ins.
Avoid unnecessary power consumption, part icularly in city traffic or
when travel ing on ly short distances. Let your author ized Audi dealer
Safety first
check the capacity of the vehicle battery before winter sets in
~ page 241. A well charged battery will not only p revent start ing
problems when the weather is cold, but will also last longer.
(D Note
• All work on the battery requires techn ical knowledge. Please
contact an Audi dealership or another authorized facility for ques
tions about the battery- danger of acid burns and explosion hazard!
• The battery m ust not be opened! Do not try to change the
battery's liquid level, otherwise detonating gas will escape from the
battery - explosion hazard!
• The AGM battery in the luggage compartment cannot leak,
because the electrolyte for this battery is absorbed into a specia l
glass mat . This leak -proof battery must not be replace with a conven
tional battery .
• Make sure the ventilation hose on the side of the battery is
connected, otherwise fumes or battery acid can leak out.
• Battery holder and terminals always have to be secured correctly .
• Before all work on the battery follow the
warnings below~ & in
"Working on the battery" on
page 239. •
Working on the battery
All work on the battery requires technical knowledge! Be
especially careful when working on or near the battery!
Before you check anything in the engine compartment,
always
read and heed all WARNINGS~ & in "Working in
the engine compartment" on
page 226 .
Always heed the safety warnings, when working on the vehicle
battery or the vehicle electrical system to prevent injury .
Vehicle care Technical data
Page 243 of 320
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& WARNING (continued)
• Never charge a frozen or a thawed-out battery. It could
explode! If a battery has frozen, then it must be replaced. A
discharged battery can freeze over at 32 °F (0 °C).
• Make sure the vent hose is always attached to the opening on
the side of the battery.
• Never use batteries which are damaged. There is the danger of
an explosion! Always replace a damaged battery.
& WARNING
California Proposition 65 Warning:
• Battery posts, terminals and related accessories contain lead
and lead compounds, chemicals known to the State of California
to cause cancer and reproductive problems. Wash hands after
handling.
0 Note
• Do not disconnect the vehicle battery when the ignition is
switched on or when the engine is running, otherwise, you will
damage electronic components in the electrical system.
• When working on the engine, protect the battery housing from
ultraviolet (UV) rays by not parking the vehicle in direct sunlight .
• If your vehicle is going to stand for a long period of time without
being driven, protect the battery from "freezing", otherwise it will be
damaged and will then have to be replaced::::;,
page 241. •
Vehicle OP-eration
Charging of battery
All work on the battery requires technical knowledge!
Fig. 169 Engine
compartment: connec
tors for a charger and
jump start cables
A charged battery ensures good starting performance. A
discharged battery can
freeze at temperatures of only O °C. A
frozen or thawed battery must be replaced, as the battery
housing may be cracked due to freezing and could therefore
leak acid.
- Always read and heed all WARNINGS below==> & and
==> & in "Working on the battery" on
page 239.
-Switch off the ignition and all electrical consumers.
- Make sure the area is well ventilated when you charge the
battery .
- Connect charger cables .
Charger cables must always be
connected POSITIVE
G to POSITIVE G and NEGATIVE
Oto NEGATIVE (jump start pins) (:).
-Switch on the charger.
- Make sure the charging rate is not over 6 amps.
- Turn off the charger==> &.
- Disconnect the charger cables.
Vehicle care Do-it-yourselt service iTechnical data
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- Connect both battery cables to the batt ery if necessary -
first plus, then minus .
The battery m ust not be opened!:::} 0 in "Gene ral informat ion" on
page 238.
Charging the battery
On ly use chargers with a m aximum charging voltage of 14.8 V. T he
ba ttery conne ct ing cab les do not need to be d isco nnected. Do not
open the battery when charg ing.
Read all of the manufacturer's instr uctions for the charge r be fore
charting the battery .
It is not necessary to remove the battery from the engine compart
ment, and i t is also not necessa ry to disconnect the cables.
Norma lly, a battery should be charged at no more tha n 10 perce nt of
i t s rated capaci ty.
For example, a charging cu rrent of 4.5 amps wou ld b e used on a
battery rated at 45 Ah. Rate d capacity of the battery in your ve hicle is
listed on the batte ry housin g.
The bat tery caps shou ld
not be opened when charg ing a battery.
& WARNING
Charging a battery can be dangerous.
• Never charge a frozen battery . It may explode be cause of gas
trapped in the ice. Allow a frozen battery to thaw out first.
• Do not reuse batter ies wh ich were frozen . They must be
replaced. The battery housing may have cracked and weakened
when the battery froze .
• Charge th e battery in a w ell ventilated area. Keep away from
open flame or electrical spark . Do not smoke. Hydrogen gas gener
ated by the battery is explosive.
• To reduce the danger of e xplosion, never connect or disconnect
c harger cable s while the charger i s operating.
& WARNING (c on tinued )
• 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 solut ion of warm water and baking soda to neutralize
the acid.
0 Note
• M ake s ure that the gas venting hose is always connected to the
or ig inal open ing o n the ba tte ry s ide . Othe rw ise gasses or battery aci d
co uld leak out .
• N ever use a fast cha rger as a booster to start t he eng ine . Th is will
ser iously damage sensitive electronic components, such as control
units, relays, radio , etc. , as well as the batte ry c harge r.
• Th e vehicle may be optionally equ ipped wi th a gel ba tte ry, which
can only be charged at a constant current-limited voltage . To prevent
damage to the batte ry and the electronics system, a gel battery that
is connected must under no c ircums tances be charged with a quic k
charger.
[I) Tips
• The veh icle battery must not be c harged with a standard sma ll
c harger that plugs in to the outlet.
• Only charge the battery th rough the connections in the engine
c omp artment .•
Battery replacement
T he new battery must have the s am e specific ations as the
old one.
Inte lligent energy management in yo ur vehicle is responsib le for
distr ib uting the elect rical e nergy througho ut your vehicle
Page 307 of 320
_____________________________________________ A_ L .... p_ h _ a_b_ e_ t_ ic_a_ l_ in_ d_e _ x __ _
Audi Service Repair Manuals and Literature
299
AUTO
Climate controls ..... .. .. ....... ..
98
Switching on ........... .. .. .. .. .. 98
When should I use AUTO? . .. .... .. .. 98
Auto Safety Hotline .... .. .. .. .. ..... 133
Automatic air recirculation ......... .... 99
Automatic belt retractor .......... .. . 139
Automatic car wash
See Washing ....... .. .. .. .. .... . 207
Automatic headlights
defective .............. ..........
36
Automatic Transmiss ion
Automatic Transmiss ion .. .. .. .... .
118
Automatic transmission ........... .. . 115
Driving Notes . ...... .. .. .. .. ..... 117
Emergency program .... ..........
121
Emergency release ............ ... . 121
Ignition key safety lock ....... ... .. 106
Kick-down ..... ......... ... .. .. . 120
Launch Control Program .. .. .. .. .. . 120
Selector lever lock ... .... .. .. .. .. . 116
Selector lever positions ..... .... .. . 115
Tiptronic .................... ... . 119
T iptronic controls on the steering wheel .
120
Average fuel mileage ........ ... .. .. .. 21
Average speed ......... ...... .. .. .. .. 21
Avoid damaging the vehicle .. .. .. .. .. . 199
Controls and equip
ment Safety first
B
Battery
... .. ... ... ................. 238
charging . .. .. .. .... .... .. .. ..... 241
Disconnecting and connecting ...... 238
Important warnings when work ing on the
battery ..... ........... ...... ..
239
Low . .. .. .. .. .... .... .. ......... 194
Replacing the battery .. .. .. .... ... 242
State of charge ..... .. ... ...... .. 194
Winter operation ..... ..... ....... 239
Working on the battery .... .... .... 239
Battery voltage .. ........... ...... .. . 35
Before driving .. ... .... .. .. .. .. .....
125
Bioethanol
Engine preheater .... ....... ......
103
Blended gasoline ................. .. 219
Body cavity seal ing . ...... .. .........
212
Booster seats . .. .. ...... ........... 17 5
Brake assistant . ................. ...
193
Brake booster ... .. .... .. .. .. ... ... . 192
Brake fluid
Changing the brake fluid ......... ..
238
Checking the brake fluid level ..... .. 237
Reservoir .. .. .. ... ..... ......... 237
What is the correct brake fluid level? . 23 7
What should I do if the brake fluid warning light comes on? . ... ... ..........
237
Brake pads .. .. .. .... ....... ...... .. 197
Brake system .. .. .. ........ ......... 237
Anti-lock brake system . .. .. ..... ... 16
Brake fluid . ................ ..... 23 7 Brake fluid specifications for
refill and
rep lacement .................. .
238
Brake light defective ....... .... .. .. 36
General information ............ .. 191
How does moisture or road salt affect the
brakes? ... .... .. ..............
191
Malfunction ........ ...... .... .. .. 32
Warning/indicator lights ... .... .. .. 15
Worn brake pads symbol ........... 35
Break-in period ... .. .. .... ... ..... ..
197
Brake pads .. .............. ...... 197
Tires ... ...................... .. 197
Bulbs ................ .. .. .. .... .. . 285
C
California Proposition 65 Warning .. .. . 227
Battery specific .. ................ 241
Capacities ............ ...... .... ... 296
Car care ... ..... ........... ........ 206
Interior ........... .. . .. .. .. .. .. . 213
Plastic and vinyl .. .. ............. . 210
Weatherstrips ........ .... .... .. . 211
Care of exterior . ...... .. . .. .. .. .. .. . 206
Cargo area
See Loading the luggage compartment ..
131
Cargo net ............. ...... .. .. .. .. 83
Catalytic converter .. .. .... .......... 198
Center armrest . .. ... ................ 79
Centigrade
Switching between Centigrade and Fahrenheit . .............. ...... .
99
Vehicle operation Vehicle care Do-it-yourself service Technical data