2015 AUDI A6 check engine

29 4 Con sum er Inf ormation
-Always make sure the transmission se­
lector lever (automatic transmiss ion) is
in P (Park position) and the park brake is
applied .
@) For the sake of the environment
-Changing the engine settings wi ll ad­
versely affect em iss ion levels. This is det­
rimental to the environment and increas­
es fuel consumption .
- Always observe env ironmental regula­
tions when dispos ing of old engine oil,
used brake fluid, dirty engine coolant,
spent batteries or worn out tires.
- Undeployed airbag modules and preten­
s ioners might be classified as Perchlo ­
rate Material -spec ial handling may ap­
ply, see www.dtsc.ca .gov/hazardous­
waste/perch lorate . When the veh icle or
parts of the restraint system including
airbag modules safety belts wit h preten ­
sioners are scrapped, all applicable laws
and regulations must be observed. Your
authori zed Aud i dea ler is familiar with
these requirements and we recommend
that you have your dealer perform this
serv ice for you .
Additional accessories,
modifications and
parts replacement
Additional accessories and parts
replacement
Always consult an authorized Audi dealer be­
fore purchasing accessories.
Your veh icle incorporates the latest safety de­
sig n featu res ensu ring a high standard of ac­
tive and passive safety .
This safety could be compromised by non-ap­ proved changes to the veh icle. For this reason ,
if pa rts have to be replaced , please observe
the following points when install ing addition­
a l accessories: Approved Audi accessories and genuine Aud
i
parts are available from authorized A udi deal­
ers.
T hese dea le rs a lso have the necessary facili­
ties, tools and trained specialists to install the parts and acc essories proper ly .
A WARNING
-Using the wrong spare parts or using non-
approved accessories can cause damage to
the veh icle and ser ious persona l injury.
- Use on ly accessories express ly approved
by Audi and gen uine Audi spare parts
- These parts and accessories have been
specia lly designed to be used on yo ur ve­
h icle .
- Never install accessor ies such as tele­
phone crad les or beverage ho lders on a ir­
bag covers or within the airbag deploy­
ment zones . Do ing so will increase the
risk of injury if a irbags are triggered in an
accident!
- Before you check anything in the engine
compa rtment, always read and heed a ll
WARNI NGS
9 page 222 .
(D Note
-If items other than genu ine Audi spare
parts, add-on equipment and accessory
items are used or if repair work is not
performed accord ing to specified meth­
ods, this c an resu lt in seve re damage to
your vehicle's eng ine and body (such as
corrosion) and adversely affect yo ur vehi ­
cle's warranty .
- If emergency repairs must be performed
elsewhere, have the vehicle examined by
an authorized A udi dealer as soon as
possible .
- The manufacturer cannot be held liable
for damage wh ich occ urs due to failure
to comply with these stipu lations.

298 Index
AUTO automatic climat e control . ... ... ... ..
71
Automatic headlights ....... .. .... .. 43
climate control . . . . . . . . . . . . . . . . . . . . . 68
Auto Lock . . . . . . . . . . . . . . . . . . . . . . . . . . 3 3
Automatic belt retractor .. ... ..... .. .
139
Automatic climate control
Air vents . .... ........... .... .... ..
7 1
Automatic recirculation . . . . . . . . . . . . . . 72
Opera tion . . . . . . . . . . . . . . . . . . . . . . . . . 70
Setup . .. .. ................ ... .. .. 72
synchron izing .... ......... ... .. .. .. 71
Automatic Shift Lock (ASL) . . . . . . . . . . . 108
Automatic transmission ..... .. .. .. .. . 107
Automatic Shift Lock (ASL) .......... 108
Driving .................... ..... . 109
Emergency mode .......... ... .... . 112
Emergency release .......... .. .... . 113
Kick-down . . . . . . . . . . . . . . . . . . . . . . . . 111
Manual shift program ..... .... .... . 111
Selector lever . . . . . . . . . . . . . . . . . . . . . 107
Automatic wipers .................. .. 48
Auto Safety Hotline ........ .. .. .. .. . 134
Ave rage consumption ....... .. .. .. .. . . 25
Average speed . . . . . . . . . . . . . . . . . . . . . . .
25
Avoid damaging the vehicle .. .. .. .. .. . 201
B
Ba ttery . .. .. ... .. ..... ... .... .. .. . 232
Charging . .. ................ ... ... 234
Important warnings .. .... .. .. .. .. . 232
Jump starting . ........... .. .. .. .. . 283
Locat ion . .. ............. .. .. .... . 232
low ... .. .. .. . ... ....... .. .. .. .. . 198
Replacing the battery ......... .. .. . 235
State of charge ............ ... .... . 198
Winter operation .......... ... .... . 232
Working on the battery ...... .. .... . 232
Before driving ............. .. .. .... . 126
Blended gasoline ........... ... .. .. . 214
Blower (automatic climate control) . . . . . . 71
Blower (climate control) . . . . . . . . . . . . . . . 68
Booster seats ............. .. .. .... .
180
Brake fluid
Changing the brake fluid ............
231
Checking the brake fluid lev el ... .. .. . 231
What is the correct brake fluid level? . . 231
What should I do if the brake fluid warn-
ing light comes on? ................
231
Brake system
Anti- lock braking system ............ .
19
Brake assist system ................ 193
Brake booster .... ............. .... 196
Brake fluid . ..... ................ . 231
Brake fluid specifications for refill and re-
placement .... ... .............. ..
231
Brake pads .. .. .. .......... ...... . 200
Electromechanical parking brake ... .. . 77
Fluid reservoir ... ................ . 231
How does moisture or road salt affect the
brakes? . .. .. .. .. ............. .. ..
195
Warning/indicator lights ............. 15
Worn brake pads symbol . . . . . . . . . . . . . 20
braking guard
Settings .. .. .. .. .. ........... .. .. .
91
Braking guard . .. .. ............. .. .. . 84
Messages . .. .. .. .. ..... ... ... .... . 91
Break-in period .... ................ . 200
Brake pads .... .. ................ . 200
Tires ..... .... ................... 200
Bulbs ...... .. .. .. .. ... .... .... .... 282
C
Californ ia Proposition 65 Warning . .. .. 223
Battery specific ... .......... .... .. 233
Capacities .. .... ............. ...... 290
Engine oil ..... .. .......... ...... . 224
Carbon parts
Cleaning . . . . . . . . . . . . . . . . . . . .
211, 212
Car carrier
Transpo rting your vehicle ...........
287
Care ...... .... ... .. .............. . 209
Cargo area ...... .. .. .............. . 132
Cargo net . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Catalytic converter . ............. .... 201
Center armrest
Cockpit ...........................
55
Central locking .... ............. .... . 33
Emergency locking ............. .... .
37
Certification .. .. .. ..... ........... . 295
Changing a wheel .. ................ . 272
Changing engine oil ... .. ... ..... .. .. 227

M N
0 <.J 'SI: ,...., \!) 1.1'1 ,...., 1.1'1 ,....,
Checking Engine coolant leve l .... ... .. .. .. .. . 228
Tire pressure . ... ...... ... .. .. .. .. . 249
Ch ild restra ints
D anger o f using ch ild restra ints in the
front seat . . . . . . . . . . . . . . . . . . . . . . . . 147
Where can I get additiona l information
about child restra ints and their use? .. 189
Ch ild restra int system anchors . .. .. .. . 185
Ch ild safety .. ............. .... .. ... 171
Convertible locking retractor . . . . . . . . . 182
Important safety instructions fo r us ing
ch ild safety seats . . . . . . . . . . . . . . . . . . 17 5
I mportant th ings to know when dr iv ing
wi th ch ild ren ............ .... .. ... 17 1
Tet her anchors . ... .... ... .. .. .. ... 188
Tether straps .. .. ..... ... .. .. .. ... 188
C hi ld safety lock
R ear doors . .. ........... .. .. .. .... 39
Ch ild safety seats .......... .... .. ... 177
Booster seats ............... ... ... 180
Convertible c hild seats .... .. .. .. .. . 178
Convertible locking retracto r .. .. .. .. . 182
H ow do I proper ly in stall a child safety
seat inmyvehicle? ........ .. .. .. .. . 175
I nfant sea ts . .... ..... ... .. .. .. ... 177
I nstall ing . ... .... .... ... .. .. .. ... 182
I nstal ling a child restraint using the
LATCH system . . . . . . . . . . . . . . . . . . . . . 187
LATCH system . . . . . . . . . . . . . . . . . . . . . 187
Lower anchorages ........ .. .. .. .. . 186
Mounting and releasing the anchorage
hook .. .. .. .. ........ ... .. ... ... . 187
Safety ins tructions ........ .. .. .. .. . 17 5
Unused safety belts on the rea r seat . . 177
Cigarette lig hter . . . . . . . . . . . . . . . . . . . . . 58
C leaning .... .... ...... ... .. .. .. ... 209
Climate control Air vents . .. ............. .... .. .. .. 69
Climate controls . . . . . . . . . . . . . . . . . . . . . 67
Climate con trol sys tem
Supp lementary heater . . . . . . . . . . . . . . . 72
Climate con trol (four-zone)
Opera tion . . . . . . . . . . . . . . . . . . . . . . . . . 70
Climate control (three-zone) Operation . . . . . . . . . . . . . . . . . . . . . . . . . 68
Clock ..... .. .. ... .. ..... ... .. .. .... 27
Inde x 299
Closing
Sliding/ti lting s unroof ... .... ... .. .. . 40
Cold tire infla tion p ress ure ............ 24 4
Coming home . .. .. ................. . 45
Compac t spa re tire ... . ... .... ... .. .. 271
Compartments . . . . . . . . . . . . . . . . . . . . . . 59
Compliance ... .. .. .. . .. ... .... ... .. 295
Consumer Informa tion . . . . . . . . . . 134, 292
Consumption (fuel) .. . ... .... ... .. .. . 25
Contacting NHTSA .... .. ..... ... .. .. 134
Controls Cleaning .. .. .. .. ................. 211
Convenience key . .. .... ............. . 35
Starting the engine . ................ 74
Stoppi ng the eng ine (START ENGINE
STOP button) .. .. .. ..... ........... 75
Swi tch ing t he igni tion on ....... ..... 74
Un locking and loc kin g veh icle .... .. .. . 35
Convertib le child safety seats ......... 178
Convertib le loc king retractor
Activating ... .... .. . .. ... .... ... .. 184
Deactivating . .. .. ............... .. 184
U sing to secure a child safety seat 1.82, 184
Coolant
refer to Eng ine coolant . ..... ... .. .. 228
Cooling mode (automat ic climate cont rol) 70
Cooling mode (climate control) . . . . . . . . . 68
C ruise cont ro l
Changing speed .. .. . ... .... ... .. .. . 82
Presetting your speed .. ..... ... .. .. . 83
Switching off .. .. .. ............... . 83
Switch ing on . .. .. .... ........... .. . 82
Warning/ind icator lights ............. 23
( upholder . ... .... .. . .. .. ..... ... .. . 59
Cu rve light ........ .. ..... .......... 100
Cylinder management
refer to Cylinder on demand System 2S
Cylinder on demand System ... ... .. .. . 2S
D
Data recorde r ... .. .. . .............. 192
Date d isp lay .... .. .. . ............... 27
Daytime runn ing lights . .. ..... ... .. .. . 43
Decla rat io n of compliance
Adaptive cruise cont rol ......... .. .. 29S
A udi side ass ist .. .. ........... .... 29S
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M N
0 <.J 'SI: ,...., \!) 1.1'1 ,...., 1.1'1 ,....,
Starting with jumper cables . ... .. .. . 283
Stopping ... ..... ..... ... ... ... .... 75
E ng ine compartment ....... .. .. .. .. . 224
C losing the hood ......... .. .. .. .. . 223
Opening the hood ........ .. .. .. .. . 222
Safety instructions ..... ... .. .. .. .. . 222
Working in the engine compartment .. 222
E ng ine coolant ............ .... .. .. . 228
Adding coolant ........... .. .. .. ... 229
Chec king the eng ine coolan t leve l .. .. . 228
Expansion ta nk . ....... ... .. .. .. ... 228
M alfunct ion symbo l .... ... .. .. .. .. .. 1 6
Radiator fan . ..... .... ... .. .. .. ... 230
Temperature ga uge ....... .. .. .. .. .. 11
E ng ine oi l ... ............. .... .. ... 224
Adding .... .... .. .... ... .. .. .. ... 226
Addit ives ... ... .. ..... ... .. .. .. ... 226
Changing .. .... .. .... ... .. .. .. ... 227
Checking the eng ine o il level .. .. .. .. . 226
Indications and cond it ions requ iring ex-
tra check ing .. ... .. ... ... .. .. .. ... 226
Indicator light . . . . . . . . . . . . . . . . . . . . . 18
O il consumption ............. .... .. 225
Pressu re malfunct ion ...... .. .. .. .. .. 17
Recommended oil check in tervals .. .. . 226
Sensor defe ctive . . . . . . . . . . . . . . . . . . . . 22
Specification and viscos ity . ... .. .. .. . 224
E ng ine sound .............. ... ... .. 100
Eng ine speed limitat ion ..... .. .. .. .. .. 21
E ng ine start-stop mode
refer to Star t-Stop-System ... .. .. .. .. 81
E ng ine start system (indicator lights) .. .. 18
Environment Break- in period ........... .... .. ... 200
Catalytic converter ........ .. .. .. .. . 201
D iese l particu late filter .... .. .. .. .. . 202
Disposing of your vehicle battery ..... 235
Driving at high speeds ........ .... .. 203
Dr iving to m inimi ze pollu tion and no ise 202
Fu el ... .. .. .... ............. .. .. . 216
Fu el economy ... .. .... ... .. .. .... . 202
L eaks under your vehicle ... .. .. .. .. . 222
L etting the ve hicle stand and warm up . 203
Proper disposal of drained brake fluid . 231
Prope r disposal of drained engine coo l-
ant . .. ... . .... ............. .. .. . 229
Proper disposal of dra ined engine
oil . . . . . . . . . . . . . . . . . . . . . . . . . 226, 227
Index 301
Recycling used engine oil ..... ... .. .. 226
Unl eaded fuel .. .. .. . ... ...... ... .. 214
What shou ld I do with an o ld battery? . 235
E vent Data Recorde r (ED R) ........ .. .. 192
Exhaust tail pipes Cleaning .. .. .. .. .. ... ....... ..... 210
Expansion tank .. .. .. . ... ...... ... .. 228
E xte rior lighting . .. ................. . 43
Exterior m irrors
Adjusting . . . . . . . . . . . . . . . . . . . . . . . . . SO
Dimm ing .. .. .. .. .. . .. .... .... .. .. . 51
Heating ......... .. ..... ........... SO
Exterior temperature display ...... .. .. . 24
F
Fastening
Booster seats .. .. .. ........... .... 180
Convertib le child safety seats .... .. .. 178
Infant seats . . . . . . . . . . . . . . . . . . . . . . 177
Floor mats . ... .... .. . .. .. ..... ... .. 131
Foot peda ls .... ... .. ..... .......... 131
For the sake of the environment
Ga soline fumes and the env ironme nt .. 216
Reduc ing engine noise by early upshift-
ing .......... ... .. ................ 11
Refueling . .. .. .... .......... ..... 216
Savi ng f uel by early ups hifting ... .. .. . 11
Fo ur- zone automatic climate control . .. . 70
Front airbags Description . ... .... . ... ...... ... .. 149
How they work ...... .. .. ..... ... .. 155
Fron tal coll is io ns and the laws of p hysics 13 7
Front seats . . . . . . . . . . . . . . . . . . . . . . . . . 52
Adjusting ... .. .. .. . .. .... .... .. .. 128
Child restraints i n the front seat ...... 147
Fuel Additives .. .. .. .. .. . .............. 214
B lended gasoline ..... ............. 214
Current consumption ... .... .... .. .. . 25
E conomy messages (effic iency p rogram) 26
Fuel fi ller flap emergency re lease . .... 218
F uel fi ller nec k ... ............. .... 216
Fuel gauge . . . . . . . . . . . . . . . . . . . . . . . . 12
Gasoline .. .. .. .. ... ............ .. 214
Gasoline additives . .. .. .. ..... ... .. 215
Low fue l level symbol . . . . . . . . . . . . . . . 22
Octane rat ing .. .. .... ......... .. .. 214
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M N
0 <.J 'SI: ,...., \!) ..,.,
,...., ..,., ,....,
_______________________________ I~ n~ d:::: e~x 307
Steering wheel column
Adjusting electrica lly ............ .. .. 73
Adjusting manually ................. 73
Steering wheel with tiptronic ... .. .. .. . 11 1
Steps for determining correct load limit . 254
Stopping the engine .......... .. .. .. .. 75
Storage ... ... ...... ....... ...... ... 59
S tron ic transm ission
Launch Control Program ... .. .. .. .. . 112
S tronic (automatic t ransmission) ... .. . 107
Sunroof .... ... ................ .... . 40
Sun shade Rear window ............. .... .. .. .. 47
Side doors .. ............. .... .. .... 47
Sun visors ... .. ........... .. .. .. .... 47
Symbols
refer to Warning/indicator lights .. .. .. 12
T
Tachome ter . . . . . . . . . . . . . . . . . . . . . 12, 24
T ail lights
Clean ing ... ................. .. ... 210
TO I clean diesel
refer to AdBlue . .......... .. .. .. ... 218
Technical data .......... ...... .... .. 289
T echnica l modifications ..... .. .. .. .. . 295
Temperature d isp lay ........ .. .. .. .. .. 24
Tether anchors ............... .... .. 188
Tether strap ... ........... .. .. .. ... 188
Text iles
Cleaning . .. .... ............. .. .. . 212
T he first 1,000 miles (1,500 km) and after-
wards . .. ... ... ................ .... 200
Three-zone climate control .......... .. 68
Tie-downs 65,133
Tips for the env ironment
Saving fue l . . . . . . . . . . . . . . . . . . . . . . . . 62
tiptronic (automatic transmission) 107, 1 11
T ire pressure .............. .... .. ... 249
Tire pressure monitoring system .. .. .. . 267
Tires . ..... .. .. ... .......... .. .. ... 237
Service life .............. .. .. .. ... 255
Speed rating letter code ..... .. .. .. . 260
Tire manufacturing date ... .. .. .. .. . 259
Tire specifications ........ .. .. .. .. . 259 Tread depth
........ .. .......... .. 255
Uniform tire quality grading ....... .. 263
Winter tires ... .. .. . .. .......... .. 264
T ires and vehicle load limits ....... .. .. 252
Tires and wheels Checking t ire pressure ... ...... .... . 249
Cold tire inflation pressure .......... 244
Dimensions .. .. .. .... ........... .. 257
General notes .. ...... ............. 23 7
Glossary of tire and loading terminolo-
gy ....... .. .... .. . .. .... ...... .. 239
Low aspect ratio tires . .......... .. .. 266
New tires and wheels . ............ . .
Replacing ... .. .. ............... . .
Snow cha ins ... .. ................ .
Tires and veh icle load limits ........ .
Wheel bolts
... .. .. .. .. ...... .....
Winter tires
r · l'f
ire service , e .. .. .... ............ .
Tool s
.... .. .. .. .. ... .. .......... ..
Torn or frayed safety belts ........... .
Towing 257
258
265
252
266
264
255
271
139
Tow truck procedures ........... .... 285
TP MS
T ire pressure mon itoring system ... .. 267
Trailer towing ...... ...... .......... 205
Operating instructions ............. . 205
Parking system ... .... ........... .. 125
T echnical requirements . . . . . . . . 205, 206
T ra ile r towing tips ................. 207
Train (transport ing your veh icle) ...... . 287
T ransmission . ... .. .. . ............ .. 107
T ransmission malfunction (in dicator
light) ...... .. .. .. ................. 112
Transport Canada
Transporting yo ur vehicle ............ .
T read Wear Indicator (TWI) .......... .
T. d np o ometer ... .. ................. .
Wha t does i t mean when DEF appears in 134
287
255 27
the tr ip odometer display? ........... 27
Trunk
refer to Luggage compartment ... .. .. . 63
T ru nk escape handle ............. .. .. 270
Trunk lid
refer to Rear lid ......... ........... 37
Turn signals ... .. .. .. .. ........... .. . 45
Warning/ind icator lights ............ . 23
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