key battery AUDI A5 COUPE 2011 User Guide

Intelligent technology
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vi dual components. It regulates consumption, so that more electrical
energy is not being used than is being generated and ensures an
optimal state of charge for the battery .
[I] Tips
• But even energy management cannot negate the limits of physics.
Consider that the power and life of a battery are limited.
• If starting ability is threatened, you are informed by a warning
~ page 245, "Driver notification in the instrument cluster display" .•
What you should know
The highest priority is given to maintaining starting capa ­
bility.
Th e battery is severe ly taxed in short-distance driving, in city traffic
and during the cold time of year. Abundant electrical energy is
required, but only a little is generated.
It is also critical if the engine
is not running and electrical components are turned on. In this
instance energy is being consumed but none is being generated.
It is in prec ise ly these sit uations that you will notice energy manage­
ment actively regulating the distribution of energy.
Vehicle stands for an extended period
If you do not drive your vehicle over a period of several days or weeks,
electrical components are gradually cut back or sw itched off. This
reduces energy consumption and maintains starting capability over a
longer period.
Take into consideration that when you unlock your vehicle, some
convenience functions, such as the remo te key or power seat adjust­
ment, may not be available. The convenience functions will be avail­
able again when you turn on the ignition and start the engine.
W ith the engine turned off
If you listen to the radio, for example, with the engine turned off or
use other MMI functions, the battery is being discharged .
If starting capability is jeopardized due to energy consumption, the
following warning appears in the MMI display:
Please start engine, otherwise system will switch off in
3 minutes.
Th e warn ing indicates that the system will be turned off automati­
cally after 3 m inutes. If you wish to continue using the functions, you
have to start the engine.
With the engine running
Although electrica l energy is generated when the vehicle is being
driven, the battery can become discharged. This happens most ly
when little energy is being generated and a great deal consumed and
the battery's state of charge is not optimal.
T o br ing the ene rgy balance back into equilibrium, consumers which
require especially large amounts of energy are temporarily cut back
or switched off. Heating systems in particular require a great deal of
energy .
If you notice, for example, that the heated seats* or the
heated rear window are not heating, they have been temporarily cut
back or switched off. These systems will be ava ilable again as soon as
the energy ba lance has been restored.
You will also notice that engine idle speed has been increased
slightly. This is normal and not a cause for concern. By increasing
eng ine id le speed the additional energy required is generated and the
battery is charged. •

Checking and filling Ill
-------------~--
Closing the engine hood
- Pull the hood down until the pressure from the struts is
reduced.
- Let the hood
drop down and latch in place. Do not try to
push it shut;
it may fail to engage=:> &.
& WARNING
A hood that is not completely latched could fly up and block your
view while driving.
• When you close the engine hood, check it to make sure the
safety catch has properly engaged. The hood should be flush with
the surrounding vehicle body parts.
• If you notice while driving that the hood is not secured prop­
erly, stop at once and close it. •
Working in the engine compartment
Be especially careful whenever you work in the engine
compartment.
Whenever you must perform any work in the engine compartment,
for example checking and filling different fluids, there is a risk of injury, burns and accidents. To prevent personal injury always
observe the following WARNINGS. The engine compartment of any
vehicle is a hazardous area=>& .
& WARNING
To help avoid injury, before you check anything under the hood:
• Turn off the engine.
• Remove the ignition key.
• Apply the parking brake.
Safety first
& WARNING (continued)
• Move selector lever of automatic transmission to "P" (Park);
put manual transmission in Neutral.
• Always let the engine cool down. Hot components will burn
skin on contact.
• To reduce the risk of being burned, never open the hood if you
see or hear steam or coolant escaping from the engine compart­
ment. Wait until no steam or coolant can be seen or heard before
carefully opening the hood.
• Keep children away from the engine compartment.
• Never spill fluids on hot engine components. They can cause a
fire.
• Never touch the radiator fan. The auxiliary electric fan is
temperature controlled and can switch on suddenly.
• Never open the coolant reservoir cap when the engine is still
warm. The coolant system is pressurized and hot coolant could
spray out.
• Protect your face, hands and arm from steam or hot engine
coolant by placing a thick rag over the cap when you open the
coolant reservoir.
• If work on the fuel system or the electrical system is necessary:
-Always disconnect the battery.
- Never smoke or work near heaters or open flames. Fluids in
the engine compartment could start a fire.
- Keep an approved fire extinguisher immediately available.
• To avoid electrical shock and personal injury while the engine is
running or being started, never touch:
-Ignition cables
- Other components of the high voltage electronic ignition
system.
• If you must perform a check or repair with the engine running: ..,
Vehicle care Technical data

___ C_ h_ e_c _k _i _ n _g ~ a_n _d_ f_il _l_in _ g _________________________________________ _
Have the battery checked when you take your vehicle in for service.
You are well advised to replace a battery that is older than 5 years.
With certain types of a irbag deployment, the battery is disconnected
from the vehicle e lectrical system for safety reasons=>
& in "Repair,
care and disposal of the airbags" on
page 204.
Disconnecting the battery terminals
Some vehicle functions (power window regulators, for example) are
lost if the battery terminals are disconnected. These functions have
to be relearned after the battery terminals are connected aga in . To
prevent this, the battery should only be disconnected from the
vehicle electrical system when absolutely necessary for repairs.
Vehicles not driven for long periods
If you do not dr ive your vehicle over a period of several days or weeks,
electrical components are gradually cut back or switched off. This
reduces energy consumption and maintains starting capability over a
longer period=>
page 243.
Take into consideration that when you unlock you r vehicle, some
convenience functions, such as the master key remote function or
power seat adjustment, may not be available. The convenience func­
tions will be available again when you turn on the ign ition and start
the engine.
W inter operation
During the w inte r months, battery capacity tends to decrease as
temperatures drop. This is because more power is also consumed
wh ile starting, and the headlights, rear window defogger, etc., are
used more often.
Avoid unnecessary power consumption, particularly in city traffic or
when traveling only short distances. Let your authorized Audi dealer
check the capacity of the vehicle battery before winter sets in
=> page 288. A well charged battery will not only prevent starting
problems when the weather is cold, but will also last longer.
W Tips
If your vehicle is left standing for several weeks at extremely low
temperatures, the vehicle battery should be removed and stored
where it will not freeze. This will prevent it from being damaged and
having to be replaced .•
Working on the battery
Be especially careful when working on or near the
battery.
The battery is located in the luggage compartment under the
floor. Before you check anyth ing in the lu~gage compart­
ment,
read and heed all WARNINGS:=>& .
Always heed the safety warnings, when working on the vehicle
battery or the vehicle electrical system to prevent injury .
The following WARNINGS are very important when
working on the battery:
Always heed the following WARNING SYMBOLS and safety pre­
cautions when working on the battery.
Always wear eye protection.
Battery acid contains sulfuric acid. Always wear
gloves and eye protection . .,,_

___ G_ e_n_ e_r _a _ l_ in_ f_o _r_ m_ a_ t_io _ n _______________________________________________ _
General information
Explanation of technical data
Some of the technical data listed in this manual requires
further explanation.
The technical data for your vehicle is listed in the charts starting on
~ page 339 . This sect ion prov ides genera l information, notes and
restrictions which app ly to this data .•
Veh icle identification
The key data is given on the vehicle identification number
(VIN) plate and the vehicle data sticker.
F ig. 2 40 V ehicle I den­
t ifi ca tion Nu mbe r
(V IN ) plate: locat io n
o n d river's s id e d ash
p an el Fi
g. 2 41 Th e vehicle
i d enti ficati on l abel -
in side the l ugga ge
co mpa rtme nt
The Vehicle Id ent ifi cat ion Number (VlN )
is located on the driver's s ide so that it is visible from the outside
through the windshield ~ fig . 240 . You can also d isp lay the Vehicle
Identification Number of your vehicle in the radio or in the MMI*.
Select :
I CARI function button> Veh icle ID numb er (VIN ).
The vehicle identifica tion lab el
is located in the luggage compartment near the battery .
The label~ fig . 241 shows the following vehicle data:
© Production control No.
@ Vehicle identification No.
® Type code n umber
@ Type designat io n/eng ine output in Kilow atts
© Engine and transmission code letter
© Paint No./Interior
(j) Optional equipment No.'s
Vehicle data 2 to 7 are also found in your Warranty
& Maintenance
booklet . .,,

___ A_ l_. p_ h _ a_b_ e_ t_ic _a_ l_ in_ d_e _ x ____________________________________________ _
Parking ........ ..... .. .. .... ... 117 Hood .. .. .. .. .. .... ... . ... .. .. . 274
Releasing and clos ing .. .. ......... 116 Starting ........... .. .. .. ....... 112
Starting assist ................ ... 117 Sta rting with jumpe rr cab les ........ 328
Starting from rest . .. ...... ..... .. 117 Stopp ing ... .. ..... .... .. .. .. .. . 113
Sta rting off w ith a t railer ... . .. .. .. 118
Engine compartment
W arning/ind icator lights . .......... 18
Safety instruct ions .... .. .. .. .. ... 275
Elect ronic differential lock (EDL) Working the eng ine compartment . . 275
How the system works .... ... .. ... 238
Engine coo lant system . .. ... . ... .... . 281
Warning/ind icator lights . .......... 17
Adding coolant ... .... .. . .. ... .. . 283
Electronic immobilizer .. .. . ... ... .. ... 45
Checking coo la nt level . ..... ..... . 282
Electro nic powe r contro l Checking the engine coo
lant level . .. 282
( E PC) war ning/ indicato r light .. ...... 15 Ma
lfunction ... ................. .. 34
Electronic stabilization program (ESP) Radiator fan ...
...... .. .. .. .. ... 284
How the system works ............ 236 Engine coo
lant temperature
Wa rning/ind icator lights . .......... 15 T
emperat ure gauge . .... . ... .. .. . . 10
Emergency braking ..... .. .. .. .. .. ... 118 Engine data
... ... ...... ... .. .. .. .. . 339
Emergency flasher . . . . . . . . . . . . . . . . . . . 62
Engine hood
W arning/ind icator lights ... .. ... ... 16 Closing ........
...... ...... ..... 275
E mergency key .. ................ .... 42 How to re
lease the hood .......... . 2 7 4
Starting eng ine . .. .... .. ..... ..... 45 Engine oil
.... ..... ..... .... .. .. .. . 277
Emergency locking of the doors . ... .. .. 51 Adding ...
... .... .... .... ... . ... 279
Eme rgency release
Sele ctor leve r ............. .... .. 156 Add
itives ...... .. .. .. ...... .. ... 279
Changing ............ .... .. ..... 280
E mergency starting .. .. ... ....... ... 328
Emergency towing ..... .. .. ..... .... 331
Emergency u nlocking
Ignition key .. .... ............. ... 44
Energy management .......... .... .. 243
Battery power ................... 245
Dr iver not ification ..... .. .. ... .. .. 245 Check o
il level ............ .. .... . 279
Consumption ....... .. .. .. ....... 279
Oil consumption .... .... . ... .. .. . 278
Oi l grades .. ..... ............. .. 277
Specification and viscosity .. .. .. .. . 277
E ngine oil leve l ... .... ............. .. 40
E ngine oil pressure
M al fun ctio n ... ........... ...... .. 35
Engine
Compartment .. .. .. .. . ... ... .. .. 276
Coolant ...... .......... ...... .. 281 Engine oil sensor defec
tive ..... .. .. ... 40
Engine speed limitatiorn . ....... ..... .. 40 Environment
Break-in per iod ......... ... .. .. .. 246
Catalytic converte r ............... 24 7
Disposing of you r vehicl e battery .. .. 289
Dr iv ing at hig h speeds ............ 249
Dr iv ing to mi nimize poll ution and noise ..
248
Fuel .. .. .... ............. ...... 271
Fuel economy .. .... .... ... .. .. .. 248
Leaks under you r vehicle ... .. ... .. 275
Lett ing the vehicle stand and warm up ...
249
Proper disposa l of dra ined brake fluid 285
Proper disposal of d ra ined engine coo lant
283
Proper disposal of drained engine oil 279,
280
Recycl ing used e ng ine o il ... .. .. .. . 279
Unleaded fue l ............ ... .. .. 269
What should I do w it h an old batte ry?
289
E nvironmen tal note
Re ar w indow defogger ...... .. 100, 1 06
Roo f rack . . . . . . . . . . . . . . . . . . . . . . . . 90
EPC See Elect ronic power con tro l ........ 15
ESP See Electronic stabilization program (ESP)
15
Event Data Recorde r (EDR) 236
Exhaust tai l pipes
Cleaning ... .... ... .. . .... .... .. 263
E xp ans ion tank .. .. .. .. ............. 282
Eyeglasses compartment ......... . ... . 94

-Alphabetical inde x lffi'f ___,__ ______________ _
Heating
Deluxe automatic climate control plus
101
Heavy clothing and safety belts . ... ... . 184
High beam ................ ...... .. . 62
Warning/indicator lights . .......... 17
H igh vo ltage warning labe l ......... .. 336
HomeL ink® un iversal remote control . .. 166
Hood
Opening ................ ...... ..
274
Release lever ............ .. .... .. 2 7 4
Horn ................. .. .. .. .. .... .. 9
How are child restraint system anchors related to chi ld safety ..... .............
229
How many a irbags does my vehicle have? .. ..
197
How often should I check my tire pressures? .
298
How safety belt pretensioners work ... . 188
Indicator lights ... .......... ..... .. .. 14
Airbag system .......... .. ... 201, 202
PASSENGER AIR BAG OFF .......... 202
Infant seats ....... ... .. .... ....... 221
Ins ide rear view mirror ........ .. .. .. .. 68
Installing child safety seats
Safety belts ............... ... .. .
225
Installing the upper tether strap on the
anchorage ... .... ... ..... .... ..
233
Instrument lighting .......... .. .. .. .. 61
Instruments and controls ..... .. .... .. 10
General illustration .............. ... 9
Interior lights Dimming . .... ... .. .. .. .. .. .. .. ..
63
Front .. ................. .. .. .. .. 63
Rear ... ................. .. .. .. .. 64
Interval wiping . .. .. ............... .. 65
Rain sensor ......................
65
Hydroplaning . .. ............ ....... 302 J
I Jumper cables .. .. .................. 329
Jump-sta rting ................ .... .. 328
Ignition key ........ ............. ... 112
Emergency unlocking .. ....... ..... 44 K
Ignition lock .. .... .. .. .... ......... 112
Malfunction ............. ...... 36, 40 Key ........ ...... ... .. .... ........ 42
Immobilizer . ... ..... ............... 42 Battery replacement ............... 43
Important things to do before driving .. 171
Improperly worn safety belts ......... 188
Indicato r light
Dynamic steer ing .......... ....
15, 37
Key replacement ..... ............. 42
Master key with remote control .. .. .. 42
Mechanica l key ................. .. 44
Kick-down tiptronic ....... .............. ...
154
Knee airbags .. .... .... ...... ... .. .. 206
Description .. .. .. ............... 206
How they work .............. ... . 207
Important safety instructions ...... 208
L
LATCH 229
Description .. ...... ............. 230
Insta lling a child restraint ....... .. 231
Location . ........... .. .... .... .. 230
Mounting and releasing the anchorage
hook .. ...... .. .. ..... .. .. .. ..
231
Leather .................... ... .. .. 264
Cleaning ........... .. .... .... .. 265
Lifting jack .......... ... . .. .... .. .. 319
Lifting vehicle ...................... 333
Light
Coming home ............ ... ... ..
60
Daytime running lights ............. 60
Driving light control ............... 58
Exterior lighting .. .. .... ......... . 60
Leaving home ....... .. .. .. .... .. . 60
Switching on and off ....... ... .. .. . 58
Light sensor ................ ... .. .. . 58
Light sensor defective ...... .. .. ... ... 38
Lighting ..... .. .. .... .............. 58
Lights
Emergency flashers . . . . . . . . . . . . . . .
62
High beam ...... . .. .............. 62
High beam warning/indicator light ... 17
Turn signals .................... .. 62
Xenon headlights . .. .... .......... 61

Alphabetical index -________________ fWI
Loading the luggage compartment .. .. . 177
Locking Luggage compartment lid ...... ... .. 51
Power locking switch ............... SO
Remote control key ................ 47
Using the mechanical key ........... 49
Low beams .. .. ................. .. .. 58
Low-beam headlight Defective .......... ... ... ... . .. .. 3 9
Lower anchorage locator button ....... 230
Lower universal anchorage bars (Canada) ... 229
Lower unive rsal anchorages (Canada) .. . 229
Luggage Stowing .. ............. .. .... ... 177
L uggage compartment ...... .. .... .. .. 83
Cargo net . .. .. ............... ... . 84
Enlarging . . . . . . . . . . . . . . . . . . . . 84, 85
Escape handle ..... ............... 52
Lid ........ ............. .... .... . 51
Loading .. .. .. ... .... ... .. .. ..... 83
Opening and closing .. .. .. .. ....... 51
Sk i sack .......................... 87
T ie-down rings ... .. .. .. ........... 83
Tru nk pass-through .. .. .. .. .. ..... . 88
See also Loading the luggage
compartment .............. .... 177
See also Luggage compartment .... .. 83
M
Maintenance ..... .... ...... .... ... . 340
Malfunction Indicator Lamp (MIL) ... 17, 29
Controls and equip­
ment Safety first
Manual transmission
... .......... ... 150 0
Mast er key
Battery rep lac eme nt ............ .. . 43 Occupant seating positions
........... 172
Check light ... .. .................. 43 Octane rating .................... .. 269
Master key with remote control . .. ...... 42 Odometer .................. .. .. .. .. 13
Mechanical emergency closing function
Oil
Panoramic tilting sunroof ........... 56 See Engine oil ........... ... 277,279
Mechanica l key .. ................ .... 44 Oil consumption ............. ....... 279
Memory for driver's seat ............... 78 On-Board Diagnostic System (OBD)
Recalling settings ................ . 79 Data Link Connector (DLC) .......... 29
Storing sett ings ... .. .. .. ... ....... 79 Electronic speed limiter .......... .. 29
Mileage Ma
lfunction Indicator Lamp (MIL) .... 29
Average ............. ........ .... 24 Open door or rear lid warning ......... . 23
Instantaneous ............ .... ... . 24
Operate your vehicle economically and mini-
Mirrors mize pollution
.................. 248
Activating the digita l compass ....... 71 Optional equipment
Adjusting the anti-glare ..... .. .. .. . 68 Marked with an asterisk ............. 6
Automatic dimming for the outside
Other equipment (effic iency program) ... 28
mirrors ................ .. ... .... 70
Outside mirrors ....... ........ ....... 69
Automatically dimming inside mirror . 68
Ins ide rear view mirror ... .......... 68
Inte rior mirror .... ....... ...... .. . 68
Manual glare dimming . .. .. ........ 68 Outside
temperat ure display ........ ... 21
Owner's manual How the Owner's Manual is organized . . 6
Outside mirrors ... ............. ... 69
Monitor ing the Advanced A irbag System 201
p
N
Paint
Touch-up . .. .. .. .. ..... ........ . 260
Natural leather .................. ... 264
New tires and wheels .... ...... .. .. .. 303
NHTSA Paint No .
............ ........ ... ... 336
Panoramic sunroof Convenience opening/closing ........ 54
Contacting . .. .. ........ ......... 1 79
Number of seats .............. .... .. 181
Vehicle operation Vehicle care Do-it-yourself service Technical data