check engine light AUDI A5 CABRIOLET 2010 Owner's Manual

lffl) __ C_ h_e _c_ k_ i_ n _ g_ a_ n _ d_ f_il _l _in ____ g ___________________________________________ _
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 anything 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.
No
- sparks
- flames
- smoking .
When a battery is charged, it produces hydrogen
gas which is explosive and could cause personal
injury.
Always keep the battery well out of reach of chil­
dren .
& 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:
& WARNING (continued)
• Always wear eye protection. Do not let battery acid or any lead
particles get on your skin or clothing. Shield your eyes. Explosive
gases can cause blindness or other injury.
• Battery acid contains sulfuric acid. Sulfuric 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, immedi­
ately 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 negative 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 system, disconnect the
negative ground cable.
• Before performing any work on the electrical system, switch
off the engine and ignition as well as any electrical equipment.
The negative cable on the battery must be disconnected. If you are
just going to replace a light bulb, then it is enough to switch off the lights. ..,_

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If it is not poss ible to use a ba ttery of this type, the new battery must
h ave the same capacity, voltage (12 volts), amperage, const ruct ion
and plug sealing .
When installing the battery, make sure the ignition and all electrical
consumers are turned off .
0 Note
Make sure the vent ilation hose on the side of the battery is
connected, otherwise fumes or battery acid can leak out.
c£' For the sake of the environment
Because of the problem of proper disposal of a battery, we recom­
mend you r author ized Audi dealer change the battery fo r you .
Batteries contain sulfuric acid and lead and must always be disposed
of properly in compliance with all env ironmenta l regu lations.
Disposing of vehicle batteries improperly is very dangerous to the
environment. •
Windshield/headlight washer
container
Fig. 226 Engin e
c o mpa rt m ent : W in d­
s hiel d an d hea dlight*
wa sh er fl uid containe r
Vehicle OP-eration
The washer fluid container is marked with the symbol¢, on
i t s cap.
- Before you check anything in the engine compartment,
always read and heed all WARNINGS ~ & in "Working
in the engi ne compar tment" on
page 280 .
-Lift the filler cap tongue to add washer fluid. You can fill
the container to the top.
- Press the cap back onto the filler neck after filling the
co ntainer.
You can find the reservoir capacit y in the table in=> page 342.
To prevent lime res idue from build ing up on the sp ray jets, use
distilled water when refilling . Always add a glass cleaner solution
(with frost protection in the winter) .
0 Note
Do not mix engine coo lant antifreeze or any other additives to fill up
the windsh ield washer reservo ir. •
Vehicle care Do-it-yourselt service iTechnical data

___________________________________________ A_ l::.. p _h _a_ b_ e_t _ic _a_ l_ in_ d _ e_x __ _
Auto Lock .. .. ... ..... ... ... ... .. .. .. 41
Auto Safety Hotline ... ... ... . .. ..... 185
Auto-Check Control .. ..... ... .... ... .. 26
Automatic belt retractor .......... ... 195
Automatic car wash See Washing ......... .... .. .... . 261
Automatic climate control . . . . . . . . . 88, 9S
Automatic driving light control ......... 62
Automatic power top ..... .. .. .. .... .. SO
Automatic Shift Lock (ASL) ... .. .. 150, 158
Automatic transmission 6-speed automatic transmission ... . 148
Automatic Shift Lock (ASL) .... 150, 158
Driving ...... ...... .. .. .. .. .. .. . 148
Dynamic shift program ... .... .. ... 151
Emergency release ............. .. . 154
Emergency release for selector lever
(mu ltitron ic®) ............... .. . 161
Fail-safe mode .............. 153, 161
Kick-down ...................... 151
Manual shift program ............. 152
multitronic ® ..................... 155
Selector lever ........... .. .. 149, 157
Shift buttons ....... .. .. .... 153, 160
Steering wheel with tiptronic ® . 153, 160
Automatic wipe/wash system .......... 69
Average speed .. ....... .... .. .. .. .. .. 22
Avoid damaging the vehicle .. .. .. .. .. . 251
Controls and equip­
ment Safety first
B
Battery
... .. ... ... ................. 291
Charging . .. .. .. .... .. .. ... ... .. . 293
Important warnings when work ing on the
battery ..... ........... ...... .. 292
Jump starting . ........... ........ 333
Low ... .. .. .. .... .... .. ......... 247
Replacing the battery .. .. .. .... ... 294
State of charge ..... .. ... ...... .. 247
Winter operation ..... ..... ....... 291
Working on the battery .... .... .... 292
Battery voltage .. ........... ...... .. . 34
Before driving .. ... .... .. .. .. .. ..... 177
Belt positioner .. .. .... .. ... ... ..... 194
Blended gasoline ................ ... 27 4
Body cavity sealing . ................. 267
Booster seats ... .. ...... .. ......... 230
Brake assist ..................... ... 245
Brake booster . ........ ... .......... 244
Brake fluid
Changing the brake fluid ........... 290
Checking the brake fluid level ..... .. 290
Reservoir .. .. .. .... .... ......... 290
What is the correct brake fluid level? . 290
What should I do if the brake fluid warning light comes on? . ... ... .......... 290
Brake system .. .. .. ..... .... ........ 290
Anti-lock brake system . .. .......... 16
Brake fluid ... .... ............... 290
Brake fluid specifications for refill and
replacement ................... 290
Brake light defective ....... .... ... . 34 Brake pads
.. .. .... ..... .... .... . 251
Electromechanical parking brake .... 110
General information .............. 243
How does moisture or road salt affect the
brakes? ... .... .............. .. 243
Malfunction .............. .... .. .. 28
Warning/indicator lights ....... .. .. 17
Worn brake pads symbol ........... 33
Braking guard
See Audi braking guard ............ 129
Break-in period ... .. .. .............. 250
Brake pads .. ...... ........... .. . 251
Tir es ... .. .. ................. .. . 250
Bulbs ................ .. .... .... .. . 331
C
California Proposition 65 Warning .. ... 281
Battery specific .................. 293
Capacities ......................... 342
Car care .. .... .............. ...... . 260
Interior ............ .. .. .. .. .. .. . 268
Plastic and vinyl .... ............. . 264
Weatherstrips ............ .. .. .. . 266
Care of exterior ... .... .. . .. .. .. .. .. . 260
Cargo area
See Loading the luggage compartment ..
183
Catalytic converter .. ..... ........... 251
Certification ......... .............. 346
Changing a flat tire .. ................ 320
Changing a wheel ...... ...... .... .. . 320
Changing engine oil ... .. .. ......... . 285
Vehicle operation Vehicle care Do-it-yourself service Technical data

___ A_ l_. p_ h _ a_b_ e_ t_ic _a_ l_ in_ d_e _ x ____________________________________________ _
Chassis
Undercoating . ...... ...... ... . .. . 267
Checking Engine coolant level .............. 287
Checking tire pressure ............... 302
Child restraint system anchors . ... .... 235
Child restra ints
Danger of using child restraints in the front
seat ........ ..... .. .... ... .. .. 202
Where can I get add itional information
about chi ld restraints and their use? ...
239
Child safety ................ .. .... .. 222
Convertible locking retractor ..... .. 232
Important safety instructions for using
child safety seats ............ ... 225
Important things to know when driving w ith children ................. .. 222
Insta lling a child restraint using the LATCH
system ....................... 238
Mounting and releasing the anchorage hook ............ ...... ... .. .. 238
Child safety seats ... ........ .... .. .. 227
Booster seats ............. ... ... 230
Convertible child seats ............ 228
Convert ible locking retractor ....... 232
Danger of using child restraints in the front
seat ........ ...... ...... .. .. .. 202
How do I properly install a child safety seat in my vehicle? .................. 225
Infant seats .................. ... 227
Installing .. .. .. ........ ......... 232
LATCH system ................. .. 238
Safety instructions ............. .. 225 Child seats
Lower anchorages ............... . 237
Cigarette lighter ............. .. .... .. 85
Cleaning Alcantara (synthet ic suede) . .. .. .. . 271
Engine compartment ........ .. .. . 272
Exhaust tail pipes ......... .. .. .. . 267
Fabrics and fabric coverings ........ 268
Instrument panel ................ 269
Interior ........ ... .. .... ....... 268
Leather ............ ... .. .. .... . 270
MMI control console ............. . 268
MMI display . .. .. ............... . 268
Plastic and vinyl ................ . 264
Plastic parts .. ... ... ... .. .. .. .. . 269
Safety belts ........... ... ... .... 2 72
Trim strips .......... ... ... ...... 264
trim str ips .. .. ........... .. .. .. . 265
Cleaning and protection ...... .. ..... 260
Clock .............................. 10
Cold tire inflation pressure ........ .. . 300
Compact spare tire ........... .. .... . 319
See also Spare tire ........ .. .. .. . 319
Compass mirror ......... .. .. .. ...... 75
Compliance ............. ........ ... 346
Consumer Information .......... 185, 343
Contacting NHTSA ... ........ .. .... . 185
Continuously Variable Transmission (CV T)
See multitronic ® ................. 155
Conven ience key ........ ...... ..... .. 43
Locking and unlocking vehicle ....... 43
S TART ENGINE ST OP button ... 108, 109
Starting engine ...... ... .. .. .... . 108 Switching engine off .
..... .. .. .. .. 109
Switching on ignition ........ ... .. 108
Convenience opening/closing .......... 48
Convert ible chi ld safety seats ......... 228
Convertible locking retractor Activating ...... .......... .. . ... 234
Deactivating . .. ... ............. . 235
Using to secure a child safety seat . . 232,
234
Cooling System Expansion tank ...... .... .. .. .. .. 287
Cooling system .. ............. .... .. 286
Cornering light ...... .. .... .......... 66
Cru ise control
Changing speed .. .. ............. 114
Preselect speed . . . . . . . . . . . . . . . . . . 114
Switching off . . . . . . . . . . . . . . . . . . . . 114
Switching on ... .. .. ............. 113
Wa rning/indicator lights ... ........ 15
Cruising range .. .. .. ..... ........... 22
Cup holders ................ ... ... .. 84
D
Data 342
Data recorde r ... ............... .... 240
Date display . . . . . . . . . . . . . . . . . . . . . . . . 10
Daytime running lights ............... 64
Declaration of compliance Adaptive Cruise Control ........... 346
Audi side ass ist ...... .. .... .... .. 346
Cell phone package .. ........... .. 346
Conven ience key .. .. .... ......... 346

-Alphabetical inde x lffi'f ___,__ ______________ _
Emergency release
Selector lever ............ ... .. ..
154
Emergency starting .. ..... .......... 333
Emergency towing ..... ............. 336
Eme rgency unlocking
Ignition key .. .. .. .. ...... ........
39
Energy management ................ 247
Battery power ................ ... 249
Driver notification ............. ... 249
Engine
Compartment . ...... .... .... .. ..
281
Coolant ............ .... .. .... .. 286
Hood . ............. .... ...... .. 279
Starting ..................... ... 106
Starting with jumper cables ..... ... 333
Stopping . ...................... 107
Engine compartment
Safety instructions ............ ...
280
Working the engine compartment .. 280
Engine coolant system
Malfunction .......... ...... .. ....
29
Radiator fan ........ .... .. .. .. .. 289
Engine coolant temperature
Temperature gauge ............ .. .. 8
Engine cooling system ............ ...
286
Adding coolant ... ............... 288
Checking coo lant level . .. ....... .. 287
Checking the engine coolant level . .. 287
Engine data ...... .......... ...... .. 342
Engine hood
Closing .................. .... ...
280
How to release the hood .. ....... .. 279
Engine oil . ..... ....... ... .. .. .. ... 282
Add ing ....... ... .. .. .. .. ....... 285
Additives .. ..... ... .. .. ......... 285
Changing .. .... .. .... .. .. .. .. .. . 285
Check o il level ...... .... .. .. .. .. . 284
Consumption . .. .. .. .. .... .. ..... 284
Oil consumption .......... .. .. .. . 283
Oil grades .... ................ .. 282
Specification and viscosity ... ... .. . 282
Engine oil level ................... ... 35
Engine oil pressure
Malfunction ... ................. ..
30
Engine oil sensor defective ............ 35
Engine speed limitation ............... 35
Environment
Break-in period ............ ..... .
250
Catalytic converter ........ .. .. .. . 251
Disposing of your vehicle battery . .. .
294
Driving at high speeds ..... ...... . 253
Driving to minimize pollution and noise ..
252
Fuel ........................... 276
Fuel economy ................... 252
Leaks under your vehicle .......... . 280
Letting the vehicle stand and warm up ...
253
Proper disposal of d rained brake fluid 290
Proper disposal of drained engine coo lant
288
Proper disposal of d rained engine oil 285
Recycl ing used engine o il .. . .. .. .. . 285
Unleaded fuel ............ .. .... . 274
What should I do with an old battery?
294
Environmental note
Rear window defogger ........ .
92, 100
EPC
See Electronic power control . . . . . . . . 13
ESP
See Electronic stabilization program (ESP)
240
Event Data Recorder (EDR) 240
Exhaust ta il pipes
Cleaning ........... ...... .... ..
267
Expansion tank .. .. .. .. ............. 287
F
Fan .................. .. .... .... 91,98
Radiator . ........... ...... .... .. 289
Fastening
Booster seats ............ .... . ..
230
Convertible child safety seats ...... 228
Infant seats .. .. ................ . 227
Flat tire
Changing .......................
320
Floor mats ..... ...... .. . .. .. .. .. .. 183
Fog lights .................. ..... ... 63
Folding the rear seat backrests .. ...... . 84
Foot pedals . ........... ...... .... .. 182
For the sake of the environment
Gasoline fumes and the environment
276
Refueling ................ ... .. .. 276
Saving fuel by early upshifting ........ 9
Front airbags Description .. ...... .............
204
How they work ...... .. .... .. .. .. 209

Alphabetical inde x -________________ fWI
Front armrest
Adjusting ........................
82
Storage compartment ............. . 82
Front ashtray ..... .. .. ............... 85
Front seats .. ....................... 77
Adjusting ... ............. .... .. . 179
Child restra ints in the front seat ... . 202
Upper cabin heating .......... .... 104
Frontal co llisions and the laws of physics 191
Fuel
Additives .......................
274
Blended gasoline .............. .. . 274
Consumption ..................... 22
Filler neck ...... ................. 275
Fuel gauge .............. ........ . 10
Gasoline .................... ... . 274
Gasoline additives ................ 275
Octane rating .................... 274
Recommendation ................ 274
Refuelling ... .. .. .. ............ .. 276
Reserve ....... .... ... .. .. .. ..... . 10
Tank capacity ...... ... .. ..... .... 342
Unlocking the fuel filler flap by hand . 278
Fuel supply too low ................... 34
Fuse arrangement ................... 327
G
Garage door opener (Homelink®) ...... 172
Gas discharge lamps ........ .... .. .. . 331
Controls and equip­
ment Safety first
Gauges
Engine coolant tern perature .......... 8
Fuel gauge .......................
10
Tachometer ....................... 9
General illustration
Instruments and controls ............
7
Glossary of tire and loading terminology 297
Glove compartment .................. 87
Gross Vehicle Weight Rating (GVWR) ... 341
H
Head restraints .................. ... 181
Adjusting ....................... 181
Front seats ... .................... 82
Headl ight washer rese rvoir ..... ...... 295
Headl ights
Adaptive light ................ ... . 66
Fog l ights .... .................... 63
Headl ight range control defective .... 35
Rear fog lights .................... 63
Washer system ............... ... . 69
Heated
Front seats . .....................
103
Rear seats ...................... 103
Rear window . . . . . . . . . . . . . . . . 92, 100
Washer fluid nozzles ............... 69
Heated outside mirrors ............... 73
Heating . . . . . . . . . . . . . . . . . . . . . . . . 88, 95
Heavy clothing and safety belts ........ 193
High beam .. ................ ... .. .. . 67
Homelink® universal remote control ... 172
Hood
Opening ............ ... .. .... ...
279
Release lever ............ ..... .. . 279
Horn ................................ 7
How are child restraint system anchors related
to child safety .. .. ..............
235
How many airbags does my vehicle have? . ..
207
How ofte n should I check my tire pressures?
303
How safety belt pretensione rs work . .. . 198
Hydroplaning .. ...... .............. 307
I
Ignition key .......... ....... .. .. ... 106
Emergency unlocking ........... ...
39
Ignition lock ... .. .................. 106
Malfunction ............. ..... 31, 35
Immob ilizer . .. ................. 11, 37
Important things to do before driving .. 177
Improperly worn safety belts .. ... .. .. . 197
Indicator lights ...................... 12
Airbag system .............. 211,212
Dynamic steering . . . . . . . . . . . . . . 13, 32
PASSENGER A IR BAG OF F .......... 212
Infant seats .............. .... ...... 227
Ins ide rear view mirror ............. ... 72
Installing child safety seats
Safety belts .....................
232
Warning/indicator lights ........ .. . 15 Instrument lighting .................. 65
High voltage warning labe l ........... 340
Vehicle operation Vehicle care Do-it-yourself service Technical data