2014 AUDI A6 check engine

-Always make sure the transm ission 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 eng ine settings w ill ad­
versely affect em ission levels. This is det­
rimental to the environment and increas­
es fuel consumption .
- Always observe env ironmental regula­
tions when d isposing of old engine oil,
used brake fluid, dirty engine coolant,
spent batter ies or worn out t ires.
- Undeployed airbag modules and preten­
s ioners might be classified as Perchlo­
rate Material -specia l hand ling may ap­
ply, see www.dts c.ca .gov/hazardous­
waste/perch lorate. When the veh icle or
parts of the restraint system includ ing
airbag modules safety belts wit h preten­
sioners are scrapped, all applicable laws
and regulations must be observed. Your
a uthorized Audi dea ler is familiar w ith
these requirements and we recommend
that you have your dea ler 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 parts have to be replaced, please observe
the following points when install ing addition­
a l accessories:
Con sumer In formation 285
Approved Audi accesso ries and genuine Audi
parts are available from authorized Audi deal­
ers.
T hese dea lers a lso have the necessary facili­
ties, tools and trained specialists to install the
parts and accessories proper ly.
A WARNING
Using the wrong spare parts or using non­
approved accessories can cause damage to
the vehicle and serious persona l injury.
- Use on ly accessories express ly approved
by Audi and genu ine Audi spare parts
- These parts and accessories have been
specially designed to be used on your ve­
hicle .
- Never install accessories such as tele­
phone cradles or beverage holders on air­
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 all
WARNINGS ~
page 224.
(D Note
-If items other than genuine Audi spare
parts, add-on equipment and accessory
items are used or if repair work is not
performed accord ing to spe cified meth­
ods, this can result in severe damage to
yo ur vehicle's engine and body (such as
corrosion) and adversely affect your vehi ­
cle's warranty .
- If emergency repairs must be performed
elsewhere, have the vehicle examined by
an authorized Audi dealer as soon as
possible.
- The manufacturer cannot be held liable
for damage wh ich occurs due to failure
to comply with these stipulations.
•
•

29 0 Index
Changing engine oil
Check ing 230
E ng ine coolan t leve l ....... .... .... . 23 2
T ire pre ssure .......... .... ... .. .. . 24 6
C hi ld restra ints
Danger of us ing child restra ints in the
front s eat . . . . . . . . . . . . . . . . . . . . . . . . 149
Where can I get add it ional information
about child restra ints and thei r use? . . 19 1
Ch ild restra int system anchors ... .. .. . 187
C hild safety .. ... .. ..... ... .. .. .... . 173
Convertible locking retractor .... .. ... 184
Important safety instructions for using
child safety seats . . . . . . . . . . . . . . . . . . 17 7
Important things to know when dr iving
with chi ldren ............. ... .. ... 173
Tether anchors ................ .... 190
Tether straps ..................... 190
C hi ld safety lock
Rear doors ... ........... .... .... .. 40
C hild safety seats ....... ... .. .. .... . 179
Booster seats .. .. ..... ... .. .. .... . 182
Convertible child seats . . . . . . . . . . . . . 180
Convertible locking retractor . . . . . . . . . 184
H ow do I properly install a child safety
seat in my vehicle? ............. .... 177
Infant seats . . . . . . . . . . . . . . . . . . . . . . 179
I nstall ing .. ................ ... ... 184
I nstall ing a chi ld res traint using the
L A T C H sys tem ............ .. .. .... . 189
L A T CH sys tem .. .. ..... ... .. .. .... . 189
Lower ancho rages ..... ... .. .. .... . 188
M ounting and releasing the anchorage
hook .. .. .. ............. .. .. .. ... 189
Safety instructions . . . . . . . . . . . . . . . . . 177
Unused safety belts on the rear seat . . 179
Cigarette lig hte r . . . . . . . . . . . . . . . . . . . . . 58
C lean ing .......................... 210
Climate control
A ir vents ..... ........... .. .. .... .. 69
Climate controls . . . . . . . . . . . . . . . . . . . . . 67
Climate control system Supp lementary heater . . . . . . . . . . . . . . . 72
Climate control (four-zone)
Opera tion . . . . . . . . . . . . . . . . . . . . . . . . . 70
Climate control (three -zone)
Operation . . . . . . . . . . . . . . . . . . . . . . . . . 68 Clock .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Closing Slid ing/tilting s unroof .......... .... . 41
Co ld tire inflation pressure ........ .... 244
Coming home ..... .. ... ..... ... .. .. . 45
Compact spa re tire ................. . 262
Compartments . . . . . . . . . . . . . . . . . . . . . . 59
Compliance . .. .. .. ............. .. .. 286
Consumer Information . . . . . . . . . . 136, 283
Consumption (fuel) . .. .. ..... ... .. .. . 25
Contacting NHTSA ................. . 136
Controls Cleaning ...... .. ............. .... 212
Convenience key ... .. ... ..... ... .. .. . 36
Starting the engine .. .. ..... ... .. .. . 74
Stopping the engine (START ENGINE
STOP b utton) ...................... 75
Switching the ignition on ............ 74
Unlocking and locking vehicle .. ..... .. 36
Co nvertib le child safety seats ... .. .. .. 180
Co nvertib le locking retractor
A ctivat ing . .. .. .. .. ... ........ .. .. 186
Deact ivat ing ..... ............. .... 186
U sing to secure a child sa fety seat 1B4, 18 6
Coolant
r e fer to E ng ine coolant .......... ... 231
Cooling mode (automat ic climate control) 70
Cooling mode (cl imate control) . . . . . . . . . 68
Cruise cont ro l
Changi ng speed .. ................ .. 83
Presett ing you r speed .......... .. .. . 83
Swi tching off .. .. ............. .. ... 83
Swi tch ing on ..... ............... .. . 82
Warning/indicator lights ..... ... .. .. . 24
( u pholder .......................... 59
C u rve light ......................... 100
Cylinder on demand System ........... 27
D
Data recorde r . . . . . . . . . . . . . . . . . . . . . . 194
Date d isp lay .... .. ... .......... .... . 28
Daytime runn ing lights . ... .... ... .. .. . 43
Declarat io n of compliance
Adaptive c ruise control ............. 286
Audi s ide ass ist .. ... .......... .... 286
Cell phone pack age . . . . . . . . . . . . . . . . 28 6

292 Index
Starting with j umper cab les . ....... . 274
Stopping . . . . . . . . . . . . . . . . . . . . . . . . . . 7 5
E ng ine compartment ....... .... .... . 226
C lo sing the hood ....... .. .. .. .. .. . 225
Opening the hood ........ .. .. .... . 224
Safety instructions ..... ... .. .. .... . 224
Working in the engine compartment .. 224
E ng ine coolant .......... .. .. .. .. .. . 23 1
Adding co ol ant ........... .. .. .... . 23 2
Che ckin g the eng ine coolan t leve l .. ... 232
E xpansion tan k ... ..... ... .. .. .... . 23 2
M alfunctio n symbo l . . . . . . . . . . . . . . . . . 17
Radiato r fan . .. .. ..... ... .. .. .... . 233
Temperature ga uge ....... .. .. .. .. . . 11
E ng ine oi l ..... ........... .... .... . 226
Adding .... ... . ...... ... .. .. .... . 229
Addit ives ... ... .. ..... ... .. .. .... . 229
C hanging . .... . ...... ... .. .. .... . 230
Check ing the eng ine o il level .. .. .... . 229
Indications and cond it ions requ iring ex-
tra check ing .. ... .... .... .. .. .. .. . 229
Ind icator light . . . . . . . . . . . . . . . . . . . . . 18
O il consumption ........... ... .. .. . 228
O il g rades .. .. . .......... .. .. .... . 226
Pr ess ure mal function ...... .. .. .. .. . . 18
Recommended oil check in tervals .... . 229
Sensor defective . . . . . . . . . . . . . . . . . . . . 22
Specification and viscos ity . ... .. .. .. . 226
E ng ine sound ............. .. .. .... . 100
Eng ine speed limitat ion ..... .. .. .... .. 22
E ng ine start -stop mode
refer to Start -Stop -System ... ... ... .. 81
E ng ine start system (ind icator lights) .... 18
Environment Break- in period ........... .. .. .. .. . 201
Cata lytic conve rter .. ...... .. .. .. .. . 202
Diese l partic ulate fil ter ..... ... .. ... 202
Di sposing of you r vehicle batte ry .. .. . 238
Dr iving a t high speeds ... .. .. .. .. .. . 20 4
D riving to m inim ize pollu tion and no ise 203
Fu el . .... .. ... ... .... ... .. .. .... . 2 18
Fu el economy .. . ...... ... .. .. .... . 203
L eaks under your veh icle ... .. .. .. .. . 224
Lett ing the vehicle stand and warm up . 204
Proper disposal of dra ined brake f luid . 234 Proper disposal of d
rained eng ine cool -
ant . ... .. .... .. .. ... ..... ... .. .. 232
Proper d isposal of d rained eng ine
o il . . . . . . . . . . . . . . . . . . . . . . . . . 229, 230
Recycling used engine oil ........ .... 229
U nleaded fuel .. .. ................ . 215
What s hou ld I do w ith an o ld battery? . 238
Event Data Recorde r (EDR) ..... ... .. .. 194
E xhaus t tai l pipes
C leaning .. .. .. . .............. .. .. 211
Expansion tank .. .. .......... ...... . 232
Exterior lighting ... .. ... ..... ... .. .. . 43
E xte rior mi rrors
Adjus ting . .... .. .. ........... .... . 50
D imming . ..... .. .. ... ..... ... .. .. . 51
Heating . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
E xterior tempera ture display ........... 24
F
Fastening
Booster seats . . . . . . . . . . . . . . . . . . . . . 182
Co nvertib le child safety seats ........ 180
I n fan t seats ... .. ............. .... 179
Floor mats .. .... .. ............. .... 133
F oot peda ls ..... .. .. ... ..... ... .. .. 133
Fo r the sake of the environment
Gasoli ne fumes and the env ironme nt .. 218
Red ucing engine noise by early upshift -
i ng ....... .. .. .. .. ............... . 11
Ref ueling ..... .. ... .. ..... .... . .. 218
Saving f uel by early ups hifting ... .. .. . 11
Fo ur- zone automatic climate control . .. . 70
Front a irbags
Descrip tion .... ... ................ 151
How they work . .. .......... ...... . 157
Frontal col lisions and the laws of p hysics 139
Front seats . . . . . . . . . . . . . . . . . . . . . . . . . 52
Adjus ting . .. .. .. ............. .. .. 130
C hild rest rain ts in the front seat . ... .. 149
Fuel Additives ...... .. ..... ........... . 215
B len ded gaso line .............. .... 215
Cur rent co nsumption ........... .... . 25
E conomy messages (e fficiency p rogram) 2 7
Fuel fi lle r flap emergency release ... .. 220
Fuel fi lle r neck ... .. .... .... ... .. .. 217
Fuel gauge . . . . . . . . . . . . . . . . . . . . . . . . 12

Gasoline ... .. .... .... ... .. .. .. ... 215
Gasoline additives ..... ... .. .. .. .. . 2 16
L ow fuel level symbo l .. ... .. .. .. .. .. 22
Octane rating ............ .... .. ... 215
Recommendation ......... .. .. .. .. . 215
Refue lling .. ................ ... ... 218
Reserve . ... ... .. .. ...... .. .. .. .. .. 12
Tank capacity . . . . . . . . . . . . . . . . . 12, 28 1
Fuses Assig nment ............. .... .. ... 270
Replacing ............ ...... .... .. 270
G
Garage door opener (Homel ink) .. .. .. . 126
Garment hoo ks . . . . . . . . . . . . . . . . . . . . . . 60
Gas discharge lamps ........... .... .. 273
Gauges Engine coolant temperature .. .. .. .. .. 11
F uel gauge . .. .. ......... .. .. .. .... 12
Speedometer ... .... ... .. .. .. .. .. .. 27
Tac hometer .. ........ ...... ... ... . 12
Trip odometer ........ .... ... ... ... 27
Gene ral illustration . . . . . . . . . . . . . . . . . . . 8
G ene ra to r (wa rn ing/ indic ator lights) .. .. 17
Glossary of t ire and load ing termi no logy 241
Glove com partment (cooled) . . . . . . . . . . . 60
G low plug system
Indicator ligh t . . . . . . . . . . . . . . . . . . . . . 21
Gross Veh icle Weight Rating (GVWR) .. . 280
H
Head -up Display . . . . . . . . . . . . . . . . . . . . . 29
H eadlights
C leaning ... .. ... ..... ... .. .. .. ... 211
C leaning system ... .... ... .. .. .. .. .. 48
Defective . ... .... .... ... .. .. .. .... 23
Headlig ht range contro l . . . . . . . . . 23, 43
Washer reservoir ......... .. .. .. .. . 238
H ead res train ts . . . . . . . . . . . . . . . . . 5 5, 13 2
A dju sting . ... .. ... . .. ... .. .. .. ... 132
Fr ont seats . . . . . . . . . . . . . . . . . . . . . . . . 55
Rear seats .. .. .. ......... .. .. .. .... 56
Removing .. ............. .... .. .. .. 56
H ea ted
exte rior m irrors ... .... ... .. .. .. .. .. 50
rear window (automatic climate cont ro l) 7 1
Index 293
rear w indow (climate cont rol) . ... .. .. . 69
seats (a utomatic climate control) ... .. . 71
seats (climate cont ro l) . . . . . . . . . . . . . . . 69
windshield washer spray no zzles ... .. .
48
He ating .... .. .. .. ................. . 67
Heavy clothi ng a nd safety be lts ... .... .
141
High beam . ... .. .... . ... ...... ... .. . 45
Hig h voltage warn ing label ....... .. .. 280
Hill descent contro l .... ............. 110
Homelin k unive rsal remote con trol . ... 126
Hood (re lease lever) .. .............. . 224
Hor n .......... .. .... ............. .. 8
How are child rest raint syste m anchors re-
lated to ch ild safety . .. .. .. ..... ... .. 18 7
How many a irbags does my vehicle have? 155
How ofte n should I check my tire pres -
s u res? ..... .. .. .. .. .. ........... .. 247
H ow safety belt pretens io ne rs wor k . . . . 1 45
Hydrop la ning ..... .. ..... .......... 251
I
Immobilize r . . . . . . . . . . . . . . . . . . . . . . . . 27
Impo rtant t hings to do be fore driving . . 128
Improperly worn safe ty belts .. ... ... .. 144
Ind icator lights
refer to Warn ing/ indicator lights . .. .. . 12
Infan t seats . . . . . . . . . . . . . . . . . . . . . . . 17 9
Installing child safety seats Safety be lts . . . . . . . . . . . . . . . . . . . . . . 184
Installing the upper tether strap on the
anchorage .... .. ...... ............. 190
Instruments Adjusting the light ing .. ..... ... .. .. . 46
Instrum ents and controls
Genera l illustration . . . . . . . . . . . . . . . . . . 8
Instr ument cluster . . . . . . . . . . . . . . . . . .
11
Interior lighting
Amb ience lighti ng .. .. .. ...... .... .. 46
Front and rear .... ................. 46
Intermittent (w indshie ld wipers) ...... . 48
J
Jack 262
Jump-starting . .. ................... 274
Jumper cables . .. ................... 275
•
•

298 Index
Steering
Electrically adjustable steering whee l 73
Manually ad justab le steer ing whee l .. . . 73
also refer to E lectro-mechanical power
assis t ... .... ............. .. .... . 198
Steering whee l
Easy entry feature . . . . . . . . . . . . . . . . . . 7 4
Indicator light . . . . . . . . . . . . . . . . . . . . . 18
Steer ing whee l heating .... .. .. .. .. . . 72
S teer ing whee l co lumn
Adjusting e lectr ica lly . .... ... .. .. ... . 73
Adjusting manually .. ... .. .. .... .. . . 73
Steer ing whee l w ith t ipt ronic . .. .. .. .. . 111
Steps for determining correct load lim it . 249
Stopping the engine ..... ... .. .. .... .. 75
Storage ... .. ... ... ... .. .. .. .. .. .. .. 59
S tronic transmission Launch Contro l Program ... .. .. .. .. . 112
S t ron ic (automatic t ransm ission) . .... . 107
Sunroof ... .. ................ ... ... . 41
Sun shade Rear window ............... .. .... .. 4 7
Side doors ............... .. .. .... .. 47
Sun visors ... ... ... ...... .... ..... .. 47
Symbols
refer to Warning/ind icator lights .. .... 12
T
Tachometer . . . . . . . . . . . . . . . . . . . . . 12, 24
Tail lights Clean ing ... .. ... ..... ... .. .. .. .. . 211
TD ! clean d iese l
refer to Ad Blue ........... .. .. .. .. . 220
Technical data ................ ... ... 280
Tec hnical modifications ... .. .. .. .... . 286
Temperatu re d isplay ........ .. .. .. .. .. 24
Tether anchors ............ .. .. .. .. . 190
Tether strap .. .... ..... ... .. .. .... . 190
Textiles Cleaning . .. ... .......... .. .. .. .. . 213
The first 1,000 miles (1,500 km) and after-
wards . .. .. .. ............... .. .... . 201
Three-zone climate control . ... .. .. ... . 68
Tie-downs . . . . . . . . . . . . . . . . . . . . . 65 , 135
Tips for the env ironment
Saving fue l . . . . . . . . . . . . . . . . . . . . . . . . 62 t
iptron ic (automatic t ransmission) 107, 111
Tire pressure ...... ................ . 246
Tire pressure monitoring system ... .. .. 258
Loss of air pressure ............ .... 259
Malfunction . .. .. .. .. ...... ... .. .. 259
Resetting t ire pressures .... ...... ... 260
Tires .. ... .. .. .. .. .. ... .. ..... ... .. 240
Service life .... .. ............. .... 250
Speed rating let ter code ...... .. .. .. 252
Tire manufacturing date ........ .. .. 252
Tire specif ications .......... ...... . 252
Tread depth . .. .. .......... ...... . 250
Un iform tire quality grading ..... .. .. 254
Winter tires . .. .. .. ........... .. .. 255
Tires and veh icle load limits ....... .. .. 248
Tires and wheels Checking tire pressure .. ... ... .. .. .. 246
Co ld tire inflation pressure ...... .... 244
Dimens ions .... .. ............. .... 251
General notes .. .. ............. .... 240
G lossary of tire and loading terminolo -
gy . .. ... ... .. .. .. ... ... ... .. .. .. 241
Low aspect ratio tires .. ...... ... .. .. 257
New t ires and whee ls ............. .. 251
Replac ing . .. .. .. ... .......... .... 252
Snow cha ins ... .. .. .... .... ... .. .. 256
Tires and vehicle load limits ... ... . .. 248
Whee l bolts ..... .. ... ..... ... .. .. 257
Winte r tires ... .. ............. .... 255
T ire service life .. .. ............. .... 250
Too ls .. ..... ... .. ..... ........... . 262
T orn or frayed safety belts ... ... .. .. .. 141
T owing
T ow t ruck p rocedu res ........... .... 276
TPMS Tire pressure monitoring system ..... 259
Trai ler towing ..... ... .. ..... .... . .. 206
Operating instr uctions ........ .. .. .. 206
Parking system . .. ... .......... .. .. 125
Technical requirements . . . . . . . . 206, 207
Tra iler tow ing tips .......... ...... . 208
T rai n (transporting your vehicle) ... .. .. 278
T ransmission .. .. .. ... .......... .... 10 7
Transmission malfunction ( indicator
li ght) .. ... ... .. .. ... .. .. ... ..... ..
112
Transpo rt Canada . . . . . . . . . . . . . . . . . . . 136
T ranspo rting your vehicle ....... .. .. .. 278