battery capacity AUDI TT ROADSTER 2011 Owners Manual

still functioning and they will draw energy
from the battery and drain it, for example, the
engine immobilizer . To prevent this, you can
e ither charge the battery occasionally to keep
it in good working condi tion or you can d is­
connect the negat ive cable on the battery .
Winter ope ration
During the winter months, battery capacity
tends to decrease as temperatures drop . This
is because more power is also consumed while
start ing, and the headlights, rear window de­
fogger, etc ., are used more often .
Avoid unnecessary power consumption, par­
ticularly in c ity traffic or when traveling on ly
short distances. Let your authori zed Audi
dealer check the capacity of the vehicle bat ­
tery before winter sets in
¢ page 192. A well
charged battery w ill not only prevent starting
p rob lems when the weathe r is cold, but will
a lso last longer .
Replacing b attery
The new battery m ust have the same capaci ­
ty, voltage (12 volts), amperage, construction
a n d p lug sealing, as the origina l batte ry. Spec­
ifications are listed on the batte ry housing.
Batteries specially developed by A udi f ulfill
the ma intenance, output, and safety require ­
ments.
When insta lling the bat tery , make sure the ig­
n ition and all e lectr ica l cons umers are sw itch­
ed
off ¢ (j) .
We recommend that you use ma intenance­
free or
cy cle-re sis tant /le ak -proof batteries
according to the standards TL 825 06 (from
December 1997) and VW 7 SO 73 (from Au ­
gust 200 1).
Replacing the battery should be ca rried by a
qua lified workshop. Please follow the instruc­
tions on the battery cover.
(D Note
- All work on t he battery requires techni­
ca l knowledge. Please contact an A udi
dealership or anothe r authorized facili ty
Checkin g and fillin g 189
for questions abo ut the batte ry - danger
of acid burns and exp losion hazard!
- T he 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!
- The AGM battery in the luggage com­
partment cannot leak, because the elec ­
tro lyte for this battery is absorbed into a
special glass mat. This leak-proof battery
must not be replace with a convent iona l
battery.
- Make sure the ventilation hose on the
side of the battery is connected, other­
w ise fumes or battery ac id 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 190.
@) For the sake of the environment
Because of the prob lem of proper disposal
of a battery, we recommend your author ­
ized Audi dealer change the battery for
you. Batteries contain sulfur ic acid and
l ead and must always be disposed of prop­
erly in compl iance with a ll environmental
regulat ions. Disposing of vehi cle batter ies
improperly is very dangerous to the envi ­
ronment. Make sure that the removed bat­
tery cannot overbalance, otherwise sulfu­ ric acid might escape!
(D Tips
If your vehicle is left standing for several
weeks at extremely low temperatures, the
vehicle battery shou ld be removed and
stored where it w ill not freeze. This will
prevent it from be ing damaged and having
to be replaced . •
•

192 Checking and filling
Charging of battery
Starting the engine requires a well charged battery.
,. Always read and heed all W ARNIN GS be­
low
c> A and c> A in Working on the bat­
tery on page 190.
,. Switch off the ignitio n and all electrical con­
s u mers.
,. Make sure the area is well vent ilated when
yo u charge the battery.
,. Connect charger cables.
ALWAY S co nnect
ch arg er ca ble s PO SITIV E
G) to POSITIVE
G) ; NE GATI VE Q to NEGATI VE Q .
,. Switch on the charger.
,. Make sure the charging rate is not over
6 amps.
,. Turn off the charger¢.&_.
,. Disconnect the charger cables .
,. Connect both battery cables to the battery if
necessary-
first plus, then m inus.
It is not necessary to remove the battery from
the luggage compartment, and it is also not
necessa ry to disconnect the cables.
Normally, a battery should be charged at no
more than 10 percent of its rated capacity.
For example, a charging current of 4.5 amps
wou ld be used on a battery rated at 45 Ah.
Rated capacity of the battery in your veh icle is
listed on the battery housing .
The battery caps should
not be opened when
charging a 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
c racked and weakened whe n the battery
froze.
- Charge the battery in a we ll ventilated
area . Keep away from open f lame o r elec­
t ric al spa rk . Do not smoke. Hydrogen gas
gene rate d by the b attery is exp losive. -
To reduce the danger of explosion, never
connect or d isconnect charger cab les
while the charger is operating .
- Fast charging a battery is dangerous and
should only be attempted by a compe­
tent tech nician with the proper equip­
ment .
- Battery acid that may spill during charg­
ing should be washed off with a solution
of wa rm water and bak ing soda to neu­
tralize th e ac id .
(D Note
Never use a fast charger as a booster to
start the eng ine . Th is w ill seriously dam­
age sensit ive electronic components, such
as cont ro l units, re lays, radio, etc., as well
as the battery charger.
{1) Tips
The vehicle batte ry must not be charged
with a standa rd small charger that p lugs
i nto the cigarette lig hter or outlet.
Windshield/head Light
washer container
Fig . 14 5 Fender, left: Windshie ld washer fluid reser·
vo ir
T he washer fluid container is marked with the
symbol
O on its cap.
,. Before you check any thing in the engine
compa rtme nt,
a lwa ys read and heed all
WARNINGS ¢
A in Working in the engine
compartment on page 178 .
,. Lift the filler cap tongue to add washer flu-
id. You can fill the container to the top.
111>

196 Tires and wheels
Maximum loaded vehicle weight
means the sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity we ight, and
(d) Production options weight
Maximum (permissible) inflation pressure
means the maximum cold inflation pressu re
to which a tire may be inflated. Also called
"maximum inflation p ressure."
Normal occupant weight
means 150 lbs. (68 kilograms) times the
number of occupants seated in the vehicle up
to the total seating capacity of your vehicle.
Occupant distribution means distribution of occupants in a vehicle .
Outer diameter means the overa ll diameter of an inf lated new
tire.
Overall width
means the linear distance between the exteri­
ors of the sidewalls of an inflated tire, includ­
ing e levations due to labeling, decorations, or
protective bands or ribs.
Ply
means a laye r of rubber-coated parallel cords.
Production options weight
means the comb ined we ight of those installed
regular production options weighing over 5
lbs . (2 .3 kg) in excess of those standard items
which they replace, not previously considered
in curb weight or accessory weight, including
heavy duty brakes, r ide leve lers, heavy duty
battery, and special trim.
Radial ply tire
means a pneumatic tir e in which the p ly cords
that extend to the beads are laid at substan­
tially 90 degrees to the centerline of the
tread . Recommended inflation pressure
see
~
page 195, Cold tire inflation pressure.
Reinforced tire
means a t ire designed to operate at higher
loads and at higher inflation p ressures than
the corresponding standard tire. Reinforced
ti res my be ident ified as "XL" "xl" "E XTRA
, ,
LOAD", or "RF" on the sidewall.
Rim
means a metal support for a tire or a t ire and
tube assembly upon which the tire beads are seated.
Rim diameter
means nominal d iameter of the bead seat. If
you change your wheel s ize, you w ill have to
purchase new tires to match the new r im di­
ameter .
Rim size designation
means rim diameter and width.
Rim width
means nominal distance between rim flanges .
Sidewall
means that portion of a tire between the
tread and bead.
Speed rating (letter code)
means the speed at which a tire is designed to
be driven for extended periods of time. The
r atings range from 93 mph (150 km/h) to
186 mph (298 km/h)
~ page 206 . You may
not find this information on all tires because
it is not requ ired by law.
T he speed rating letter code, where applica­
ble, is molded on the tire sidewall and indi­
cates the maximum perm iss ibl e road speeds
~ A in Winter tires on page 209 .
Tire pressure monitoring system
means a system that detects when one or
more of a veh icle's tires are underinflated and
i lluminates a low tire pressure warning tell-
tale. ..,_

Emergency situations
General
This chapter is intended for trained emer­
gency crews and working personnel who
have the necessary tools and equipment to
perform these operations.
Starting by pushing or
towing
(D Note
Vehicles with an automatic transmission
cannot be started by pushing or towing .
Starting with jumper
cables
If necessary, the engine can be started by
connecting it to the battery of another vehi­
cle.
If the engine should fail to start because of a
discharged or weak battery, the battery can be
connected to the battery of
another vehicle,
using a
pair of jumper cables to start the en­
gine.
Jumper cables
Use only jumper cables of sufficiently
largec ross section to safely carry the starter
current. Refer to the manufacturer's specifica­
tions.
Use only jumper cables which have
insulated
termina l clamps and are properly marked for
distinction :
plus(+) cable in most cases colored red
minus(-) cable
i n most cases colored black.
_& WARNING
Batteries contain electricity, ac id, and gas.
Any of these can cause very serious or fatal
injury. Follow the instructions below for
safe handling of your vehicle's battery.
- Always shield you r eyes and avoid lean­
ing over the battery whenever possible.
Emergency situations 231
-A discharged battery can already freeze
at temperatures just below 32 °F (0 °C).
Before connecting a jumper cable, the
frozen battery must be thawed com­
pletely, othe rwise it could explode .
- Do not allow battery acid to contact eyes
or skin . Flush any contacted area with
water immediately .
- Improper use of a booster battery to
start a vehicle may cause an explosion.
- Vehicle batter ies generate explosive gas­
es. Keep sparks, flame and lighted ciga­
rettes away from batteries.
- Do not try to jump start any veh icle w ith
a low ac id level in the battery.
- The voltage of the booster battery must
also have a 12-Volt rating. The capacity
(Ah) of the booster battery should not be
lower than that of the discharged bat­
tery . Use of batteries of different voltage
or substantially different "Ah" rat ing
may cause an exp losion and personal in­
jury.
- Never charge a frozen battery. Gas trap­
ped in the ice may cause an explosion.
- Never charge o r use a battery that has
been frozen . The battery case may have
be weakened.
- Use of batter ies of different voltage or
substantially different capacity (Ah) rat ­
ing may cause an exp losion and injury .
The ca pa city (Ah) of the booster battery
should not be lower than that of the dis­
charged battery.
- Before you check anything in the engine
compartment, always read and heed all
WARNINGS¢
page 172, Engine com­
partment.
(D Note
- App lying a higher voltage booster bat­
tery will cause expensive damage to sen­
sit ive electronic components, such as
control units, relays, rad io, etc .
- There must be no electrical contact be­
tween the vehicles as otherwise current
could already start to flow as soon as the
posit ive(+) terminals are connected. ..,. •
•

Disposing of your vehicle battery .. .. . 189
Driving at high speeds . . . . . . . . . . . . . . 159
Driving to minimize pollution and no ise 159
Fuel ... .. .. ................. .. ... 176
Fuel economy ................ .. ... 159
Leakage from your veh icle ...... . ... . 178
Letti ng the ve hicle stand and warm up . 160
Proper disposal of drained brake fluid . 188
Proper disposal of drained engine coo l-
ant ... .. .. ................. .. ... 186
Proper disposal of drained engine
oil . . . . . . . . . . . . . . . . . . . . . . . . . 183, 184
Recycling used engine oil ......... .. . 183
Un leaded fuel ............ .. .. .. ... 174
What should I do with an old battery? . 189
EP C
refer to Electronic power control . . . . . . 14
E SP
refer to Electronic Stability Program . . 148
Event Data Recorder (E DR) ... .. .. .. .. . 148
E xhaust tail pipes
Cleaning ... .. ... ........ .. .. .. ... 168
E xpansion tank .... .. ... ... .. .. .. .. . 185
F
Fan .... .... ... ................ .... . 76
Radiator ... .. ........ ... .. ... ... . 187
Fastening Booster seats . . . . . . . . . . . . . . . . . . . . . 143
Convertible c hild safety sea ts . .. .. .. . 142
Infant seats .. ..... ............. .. 141
Fl at tire
Changing .. .. .. ........... .. .. ... 222
Fl oor mats ... .... ............. .. .. . 103
Fog lights . . . . . . . . . . . . . . . . . . . . . . . . . . 55
F olding master key with remote contro l .. 35
Foot pedals .. .......... ... .... .. .. . 103
For the sake of the environment
Gasoline fumes and the environment .. 176
Lett ing your engine warm up . .. ... ... 81
Refuel ing . . . . . . . . . . . . . . . . . . . . . . . . 176
Saving fuel by early upshift ing .. .. .. .. 10
Front airbags Descr ipt ion ..... ............. .. .. . 119
H ow they work ... .. ...... .. .. .. .. . 124
Fr onta l co llisions and the laws of physics 108
Index 249
Front seats . . . . . . . . . . . . . . . . . . . . . . . . . 66
Adjusting ... .. .... . ............ .. 100
Adjusting the manual seats . . . . . . . . . . . 67
Child restraints in the front seat .... .. 116
Fuel Additives . ... .. .... . ............ .. 174
Blended gasoline . . . . . . . . . . . . . . . . . . 17 4
C ur rent fuel mileage . .......... .. .. . 20
Filler neck . .. .. .. .. .. ........... .. 175
Fuel gauge . . . . . . . . . . . . . . . . . . . . . . . . 12
Fuel supply too low . . . . . . . . . . . . . . . . . 32
Gasoline .. .. .. .. .. . .. .. ...... .. .. 174
Gasoline addit ives .. .............. . 175
Octane rat ing .. .. ................. 174
Recommendation . .... ......... .. .. 174
Refuelling ... .. .. .. . .. .......... .. 176
Reserve ... .. .. .... . ............ .. . 12
Tank capacity ....... .. ........ .. .. 239
Unlocking the fuel filler flap by hand .. 177
Fuel economy messages (efficiency pro-
gram) ...... .. .. .. .. . .............. . 24
Fuse arra ngeme nt ........ ......... . 228
G
Garage door opener .. ............... . 94
Gas discharge lamps . .. .. .......... .. 230
Ga uges
En gine coolant temperatu re . . . . . . . . . . 11
Fuel gauge . . . . . . . . . . . . . . . . . . . . . . . . 12
Tachom eter . . . . . . . . . . . . . . . . . . . . . . . 10
General illustration
Instruments and controls ... ... ... .. .. 8
Generator Warning/indicator lights .......... .. . 16
Glossary of tire and loading terminology 195
G lo ve compar tme nt . . . . . . . . . . . . . . . . . . 73
Gross Vehicle Weight Rating (GVWR) ... 237
H
Head lights ....... .. . .. .......... .. . 53
adaptive light . . . . . . . . . . . . . . . . . . . . . . 54
defective . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Front fog lights . . . . . . . . . . . . . . . . . . . . 55
Switching off . . . . . . . . . . . . . . . . . . . . . . 53
Switching on . . . . . . . . . . . . . . . . . . . . . . . 53
•
•