check engine AUDI A7 2015 Service Manual
Page 305 of 316
M N <( (.J 
'SI: ,...., \!) 1.1'1 ,...., 1.1'1 ,...., 
Data  ...... .. .... .. .... ... .. .. ...  293 
Start-Stop -System  . . . . .  . . .  . .  . .  . .  . .  . .  81 
start ing  . ... .... ...... ... .. .. .. .. ..  76 
Starting  with  jumper  cab les  .. .. .. .. .  285 
Stopping  .  . .  . . . . . . . . . . . . .  . . . .  . .  . . . .  77 
E ng ine compartment  .... ... .. .. .. .. .  22 7 
C losing  the  hood  . ..... ... .. .. .. .. .  226 
Opening  the  hood  ..... ... .. .. .. .. .  225 
Safety  instructions  ........ .. .. .. .. .  225 
Working  in the  engine  compartment  . . 225 
E ng ine coolant  ... ...... ... .. .. .. ...  231 
Adding  coolant  . .. ..... ... .. .. .. ...  232 
Chec king the  engine  coolant  leve l .. .. .  23 1 
Expansion tank  ........... .... .. .. .  231 
Malfunct ion  symbo l ....... .. .. .. .. ..  16 
Radiator  fan  .............. ... ... ..  233 
Temperature  gauge  ........... ... ...  11 
Engine oil  ... .... .. .... ... .. .. .. ...  227 
Adding  .. .. ............. .... .. ...  229 
Addit ives . .. ............. .... .. .. .  229 
Changing  .. .. ... .. ... ... .. .. .. ...  230 
Checking the  eng ine o il level  .. .. ... ..  229 
I ndications  and cond it ions requ iring  ex-
tra  check ing  ............. .... .. ...  229 
I ndicator  ligh t . . . . . . . . . . .  . . . .  . .  . .  . .  18 
O il  cons umption  .......... .. .. .. .. .  228 
P ressu re mal func tion  ... ... .. .. .. .. ..  17 
Recommended  oil  check intervals  . ... .  229 
Sensor defect ive  . . .  . . . .  . . .  . .  . .  . . . .  . .  22 
Specification  and viscos ity  .. .. .. .. .. .  227 
E ng ine sound  ............. .... .. .. .  10 2 
Eng ine speed  limitat io n  ........ .. .... .  21 
Engine start -stop  mode 
refer to Start-Stop-System  . .. .. .. .. ..  83 
E ng ine star t sys tem (indicator  l igh ts)  .. ..  18 
Env ironment 
Break- in period  ........ ...... .... ..  203 
Cata lytic  converter  ........... .... ..  204 
D iese l par ticul ate fi lter  .... .. .. .. .. .  205 
Di sposing  of  yo ur vehicle  ba ttery  .. .. .  238 
D riving  a t  high  speeds  .. ... .. .. .... .  206 
D riving  to  minimize  pollution  and  noise  205 
Fu el  . .... .. .. ... .. ..... ... .. .. ...  219 
F ue l economy  ............ .... .. ...  205 
Leaks  under your  veh icle  ... .. .. .. .. .  225 
Lett ing the  veh icle stand  and warm  up . 206 
Proper disposal  of  dra ined brake flu id  . 234 
Inde x 303 
Proper disposal  of  d rained  eng ine cool -
ant  . ... .. .. .. .... . ... ...... ... ..  232 
Proper disposal  of  d rained  eng ine 
o il  . . . . . . . . .  . .  . .  . . . . . . . . . . . .  229,  230 
Recycling used engine  oil  ............  229 
Un leaded fuel  .. ... ................  217 
What  should  I  do with  an o ld  battery?  . 238 
Event  Data Recorder (EDR)  . . . . .  . . .  . .  . .  194 
E xhaust  tail  pipes 
Cleaning  .. .. .. .. .. . ..............  213 
Expansion tank  .. ... ...... ..........  231 
Exterior  lighting  ..... . .. .. ..... ... .. .  44 
E xte rior  m irrors 
Adjus ting  . .. .. .. .... ........... .. .  50 
Di mming  . ... .. .. .. .. .. ...... ... .. .  51 
Heating  ... .. .... ... .. .. ..... ... .. .  50 
Exterior  temperature  display  ...........  24 
F 
Fastening 
Boos ter seats  .. .. .. . .. .... .... .. ..  182 
Co nvertib le child  safety  seats  ........ 180 
Infan t seats  .  . .  . .  . . . . . . . . . . . . . . . . .  179 
Floor  mats  . .  . .  . .  . .  . . . . . . . . . . . . . . . . .  133 
Foot  peda ls  ... .. .... . ... ...... ... ..  133 
Fo r the  sake of  the  environment 
Gasoline fumes  and t he env ironme nt  ..  219 
Red ucing engine  noise  by early  upshift -
i ng  ....... .. .. .. ... ............ ...  11 
Ref ueling  ... .... ... .. .. ..... ... ..  219 
Saving f uel  by early  upshifting  ... .. .. .  11 
Fo ur- zone automatic  climate  control  . .. .  72 
Front  airbags  Descrip tion  . .  . .  . .  . .  .  . . . . . . . . . . . . . .  151 
How they  work  . ......... ......... .  157 
Frontal  coll isions  and the  laws of  physics  139 
Fron t seats  .  . .  . .  . .  . .  . .  . . . . . . . . . . .  . .  .  53 
Adjus ting  . .. .. .. .. ...............  13 0 
Child  rest rain ts  in the  front  seat  . ... ..  149 
Fuel  Additives  .. .. .. .... .......... .....  217 
B lended gaso line  . ............. ....  217 
C u rrent  cons umption  .. ......... .... . 25 
E conomy  messages (eff icien cy program)  26 
F uel fi ller flap  emergency  release  ... ..  221 
F uel fi ller  neck  ..... . .. .. ..... ... ..  219 
Fuel gauge  . .  . .  . .  . .  . .  . . . . . . . . . . .  . .  .  12 
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Page 306 of 316
304  Index 
Gasoline ........ ......... ... .... . 21 7 
Gasoline additives  .................  218 
Low  fuel  level  symbo l . . .  . .  . .  . .  . . . .  .  .  22 
Octane  rating  ............ .. .. .....  217 
Recommendation  ......... .... .... . 217 
Refuelling  .. ................ ... ...  219 
Reserve  .. .. ... .... ...... .. .. .. .. ..  12 
Tank capacity  . . . . . . . . . . . . .  . . .  .  12, 292 
Fuses  Assignment  ................. .... . 281 
Replacing  .. ..... ........... ... .. .  281 
G 
Garage door  opener  (Homelink)  .. .. .. . .  42 
Garment  hooks  ............ .... .. .. ..  61 
Gas discharge  lamps  ............ .. .. .  284 
Gauges  Engine coolant  temperature  .... .. ....  11 
Fuel gauge  ... ........... .... .... ..  12 
Speedometer  ... .... ..... .... .. .. ..  27 
Tachometer  ................ ... ... .  12 
Trip odometer  .. ...... .... ... .. .. ..  27 
General  illustration  ............ .... ...  8 
Generator  (warning/ indicator  lights)  ....  17 
Glossary of  tire  and  loading terminology  242 
Glove compartment  (cooled)  ........... 61 
Glow  plug  system  Indicator  light  . . . . . . . . . . .  . .  . .  . .  . .  . .  21 
Gross Vehicle Weight  Rating  (GVWR)  .. .  291 
H 
Head -up Display  . . . . . . . . . . . . .  . .  . . . .  . .  28 
H eadlights 
Cleaning  ... ................ ..... .  213 
C leaning  system  ....................  48 
Defective  . ................. ..... ..  22 
Headlight  range control  . . .  . .  . .  . .  22,  44 
Washer  reservoir  ......... .. .. .... . 238 
H ead restraints  . .  . .  . . . . .  . . .  . .  . .  .  56,  132 
Adjusting  .. ................ ..... . 132 
Fr ont  seats  . . .  .  . .  . . . . .  . . .  . .  . .  . . . .  . .  56 
Rear seats  .... ........... .... .... ..  57 
Removing  ............... .. .. .. .. ..  57 
H eated 
exterior  mirrors  . . . . . . .  . . .  . .  . .  . . . .  . .  SO 
rear window  (automatic  climate  contro l)  73  rear window  (climate  cont
ro l)  .  . . .  . .  . .  .  71 
seats (automatic  climate  control)  ...... 73 
seats  (climate  contro l)  . .  . . . . .  . . .  . .  . .  .  71 
Steering  wheel  ... ............. .....  74 
windshield  washer  spray nozzles  . .... . 48 
Heating  ... ..... .. .. .............. ..  69 
Heavy  clothing  and safety  belts  ........  141 
High  beam  .. ...... ............. .....  46 
High voltage  warning  label  ..... .. .. ..  291 
Hill  descent  control  .................  112 
Homelink  (garage door  opener)  ..... .. .  42 
Hood  (release lever)  .. ........... .. ..  225 
Hooks  . .. .. .. .. .. ............... .. .  67 
Horn  ..... ..... .. ................ ...  8 
How are child  restraint  system  anchors  re-
lated  to  chi ld safety  .......... ...... .  187 
How many airbags  does my vehicle  have?  155 
How often  should  I  check my tire  pres-
sures?  ......... .. .. .............. . 253 
How safety  belt  pretensioners  work  .. ..  145 
Hydroplaning  ......................  260 
I 
Immobilizer  . . . . . .  . .  . . . .  . . . .  . . .  . .  . .  .  27 
Important  things  to  do before  driving  ..  128 
Improperly  worn  safety  belts  ...... .. ..  144 
Ind icator  lights 
Dynamic steering  ................. . 200 
also  refer  to Warning/indicator  lights  ..  12 
Infant  seats  .. .. .. ... .......... ....  179 
Installing  child  safety  seats  Safety  belts  .  . . .  .  . . .  . . .  . . . .  . . .  . .  . .  184 
Installing  the  upper tether  strap  on the 
anchorage  .  . . . . .  . .  . .  . . .  . . . . .  . . .  . .  . .  190 
Instruments  Adjusting  the  light ing  .......... .... . 47 
Instruments  and  controls  General  illustration  . .  . .  . . . . . . . . .  . . .  . .  8 
Instrument  cluster ................ ..  11 
Interior  lighting 
Ambience  lighting  ............. .. .. .  47 
Front  and  rear  ... ....... ...... .. .. .  47 
Intermittent  (windshield  wipers)  ... ... .  48  
Page 311 of 316
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'SI: ,...., \!) 1.1'1 ,...., 1.1'1 ,...., 
Starting  from  rest  . . .  . . . .  . . .  . .  . .  . .  . . . .  80 
Starting  off  with  a trai ler  ..............  80 
St arting  the  eng ine  . ..... .. .. .. .. .. ..  76 
S teer ing 
E lectrically  ad justab le steer ing whee l ..  75 
M anually  adjustab le steering  whee l .. ..  75 
also ref er to Electromechanica l power  as-
sist  . .... .. ................. .. ...  200 
S teer ing whee l 
E asy entry  featu re  ..... ... .. .. .. .. ..  76 
I ndicator  light  .  . .  . . . . .  . . .  . .  . .  .  18,  200 
Steer ing whee l heating  . ... .. .. .. .. ..  74 
Steer ing whee l co lumn 
Ad justing  e lec trica lly  ...... .. .. .. .. ..  75 
Ad justing  manually  .... ... .. .. .. .. ..  75 
Steer ing whee l with  t iptronic  . .. .. .. .. .  113 
Steps fo r determining  correct  load  limit  .  257 
Stopping  the engine  . . . . . . . .  . .  . .  . .  . .  . .  77 
Storage  .  . .  . .  . . . . . . . . . . . . . . . . .  . .  60,  64 
S tronic  transmission  Launch Contro l Program  . . .  . .  . .  . .  . .  .  113 
S tron ic (automatic  t ransm ission)  . .. .. .  109 
Sunroof  ... .. .. ............. .. .. ....  41 
Sun shade  . . .  . . . .  . .  . . . .  . . .  . .  . .  . .  . . . .  48 
Sun visors  . ................ ... ... ...  4 8 
Symbo ls 
refer to Warning/ind icator  lights  .. .. ..  12 
T 
Tachometer  .  . . . . .  . .  . . . .  . . .  . .  . .  . .  1 2,  24 
Ta il lights 
C le a ning  . .. ................. .. ...  2 13 
T OI clean  diese l 
refer to AdBlue ............ ... ... ..  22 1 
T ec hnica l data  . ... .. .... ... .. .. .... .  29 1 
Techni cal mod ifications  ..... .. .. .. .. .  297 
T emperature  d isp lay  ..... ... .. .. .. .. ..  24 
Tether  anchors  ... .. .... ... .. .. .. ...  190 
Tethe r strap  . ................ ... ...  190 
Textiles  Cleaning  . .. .... ............. .. .. .  215 
The first  1,000  mi les (1,500  km)  and after -
wards  ..... .. .. ... .. ..... ... .. .. ...  203 
Three-zone  cl imate  co ntrol  .. .. .. .. .. ..  70 
Tie-downs  .  . .  . . . . . . . . . . . . . . . . .  . 66,  135 
Inde x 309 
Tips  for  the environment 
Saving f uel  . ... .. .. . ... ...... ... .. .  63 
t iptron ic (automat ic t ransm ission)  109,  113 
Tire pressure  .. .. .. .................  252 
T ire  pressure  mon itoring  system  ... .. ..  270 
Tires  ...... ... .. .... .......... .....  240 
Se rv ice life  .. .. .. .. .......... .....  258 
Speed  ra tin g letter  code  ........ ....  263 
T ire  manufac turing date 
T ire specifications  . .. .. ..... ... .. . . 
Tread depth  ....... . .. .. ..... ... . . 
U niform  tire  quality  grading  .. ... .. . .  2
62 
262 
258 
266 
Winter  tires  . .. .. .................  267 
T ires and vehicle  load  lim its ....... .. ..  255 
Tires and wheels  Check ing t ire pressu re  .. .... ... ... ..  252 
Co ld tire  inflation  pressure  .......... 247 
D ime nsions  .. .. .. .................  260 
General notes  .. .. .... ........... ..  240 
G lossary of  tire  and  loading  term inolo -
gy  .. ... .. .. .. .... . ... ...... ... ..  242 
Low aspect  ratio  tires  . .. ..... ... .. ..  269 
New tires  and wheels  ........... ....  260 
Rep lacing  . .. .. .. .... ........... ..  261 
Snow cha ins  . .. .. .................  268 
Tires and veh icle  load  limits  .........  255 
Wheel  bolts  ... .. .. . .. .... .... .. ..  269 
Winter  tires  ...... ................  267 
Tire service  life  .. .. ............... ..  258 
T oo ls  ...... .. .. .. .... .............  273 
Torn or frayed  safety  belts  ............ 
141 
Towing 
Tow truck  procedures  ........... ....  287 
T PMS 
T ire  pressure  monitoring  system  ... ..  2 70 
T ra iler tow ing  . .. .. .. ... ....... .....  208 
Operating  instr uctions  ............. . 208 
Pa rking  system  . .. ............... ..  12 7 
T echnical  requiremen ts  . . . . . . . .  208,  209 
T rai le r tow ing tips  . ... ...... ... .. ..  210 
Trai n (transporting  your  veh icle)  ...... .  289 
Transmiss ion  . ... .. .. .. ... ..... ... ..  109 
T rans miss ion  malfunc tion  ( indi cato r 
li gh t)  . . . . . .  . .  . .  . .  . .  . .  . . . . . . . . . . .  . .  114 
T ransport  Canada  ......... ..........  136 
T ransporting  yo ur vehicle  . ..... ... .. ..  289 
T read Wea r Ind icator  ( TW I)  ....... .. ..  258 
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