engine AUDI S6 2015 User Guide
Page 19 of 314
M N 
0 <.J 'SI: ,...., \!) 1.1"1 ,...., 1.1"1 ,...., 
Instruments  and  warning/indicator  lights  17 
-The engine  compartment  of any vehicle 
is a dangerous  area.  Before you perform 
any work in the  engine  compartment, 
turn  of the  eng ine and  allow  it to  cool. 
Follow the  warning  stickers¢ 
page  222. 
(D Note 
Do not  continue  driving if  the. symbo l 
illuminates.  There is a  malfunct ion in the 
eng ine cooling system  -you could damage 
your eng ine. 
0 Battery 
This warning/indicator  light  detects  a mal
function  in the  generator  or  in the  vehicle's 
electrical  system. 
The. warning/ind icator  light  illuminates 
when you switch  on the  ignit ion and  must go 
out  after  the engine  has started. 
• Alternator  fault:  Battery  is not  being 
charged 
If  the  indicator  light  turns  on and the  mes
sage  appears,  there  is a malfunction  in the 
generator  or vehicle e lectr ica l system . 
Dr ive to  your au thorized Audi  dealer or quali 
fied  workshop  immediately . Because the  vehi 
cle  battery  is discharging,  turn 
off all  unnec
essary  electrical  equipment  such as  the  radio. 
Seek professional  ass istance  if the  battery 
charge  level is too  low . 
(•)  Low battery:  battery  will  be charged 
while  driving 
If  the  indicator  light  turns on and  the  mes 
sage  appears , there  may  be limited  starting 
abi lity . 
If this  message  turns off after a litt le wh ile, 
the  battery  charged  enough  wh ile driving. 
If the  message  does not turn off, have  your 
authorized  Audi dealer  or qua lified workshop 
correct  the  mal func tion. 
~ Safet y belts 
This warning/indicator  light  reminds you  to 
put  on your  safety  belt. 
The . warning/ indicator  light  illum inates 
when the  ignition  is switched  on to  remind 
the  driver and  any front  passenger  to put  on 
the  safety  belt.  Add it ionally, an acoustic  warn
ing  (gong) wi ll also sound. 
For more  Information¢ 
page  136, i Safety 
belt  warning  light . 
~ Engine  oil  pressure  malfunction 
The red engine  oil pressure  warning symbol 
requires  immediate  service or repair . Driving 
with a  low-oil-pressure  indication  is likely to 
inflict  severe  damage  to  the  engine. 
• Switch  off  engine  and check  oil  level 
If the  indicator  light turns  on and  the  mes
sage  appears,  the  oi l pressure  is too  low. 
.,.  Pull 
off the  road. 
.,.  Stop  the  vehicle. 
.,.  Turn 
off the  engine . 
.,. Check the  engine  oil  level c> page  226  . 
.,. If the  eng ine o il level  is too  low, add  eng ine 
oil ¢ 
page  226. Make sure  that  the  oil pres
sure warning  symbol. appears  no  longer 
in  the  display  before you start  dr iv ing again . 
.,.  If the  eng ine o il level  is correct  and  the  indi
cator  light  still  turns  on, turn  the  engine 
off 
and  do not  continue  driving. Seek professio
na l assistance . 
(D Tips 
- The engine  oil  pressure  symbol. is 
not  an indicator  for a low engine  oil  lev
el.  Do not  rely  on it.  Instead,  check the 
oil  level  in your  engine  at  regular  inter
vals,  preferably  each  time  you  refuel , 
and always  before  going  on  a long  trip. 
- The yellow  oil  level  warning  indication 
II requires oil refill  or workshop  serv
ice without  delay.  Do not  wait  until  the 
red oil  pressure warning.  starts  to 
flash  before  you respond  to  the  low  oil  
Page 20 of 314
18  Instruments  and  warning/indicator  lights 
level  warning II. By then,  your  engine 
may already  have  suffered  serious  dam· 
age. 
~ Engine  oil  level 
•  WARNING: Please  add  oil  immediately 
If the  indicator  light  and  the  driver message 
appear,  add  engine  oil immediately 
c::>page224. 
Ill Add oil,  max.  x qt (I). You may continue 
driving 
When  the  symbol  and  the driver message  ap
pear , add  the  amount  of oil appearing  in the 
display at  the  next  opportunity 
c::> page  224. 
~ - Steering  column  lock 
•  Do not  drive vehicle:  Steering  defective 
If the  indicator  light  turns  on and  the  mes
sage  appears , there  is an  electronic  steering 
column  lock malfunction.  You cannot  switch 
the  ignition  on. 
Do 
not tow  your vehicle because  it cannot  be 
steered.  Seek professional  assistance. 
Ill Steering  lock: system  fault.  Please  con
tact  dealer 
If the  indicator  light turns  on and  the  mes
sage  appears,  there  is an  electronic  steering 
column  lock malfunction . 
Drive to  your authorized  Audi dealer  immedi
ately  to  have the  malfunction  corrected. 
A WARNING , --
Your vehicle must  not  be towed  in the 
event  of a  malfunction  in  the  electronic 
steering  column  lock because  it cannot  be 
steered  due  to  the locked steering. 
If it is 
towed  with the steering  locked,  there is 
the  risk of an  accident . 
©-Engine  start  system 
•  Engine  start  system  fault.  Please  contact 
dealer 
If the  indicator  light  turns  on and  the mes
sage  appears,  do 
not switch the  ignition  off 
because  you may not  be able  to  switch  it on 
again. 
Drive to  your authorized  Audi dealer  immedi
ately  to  have the  malfunction  corrected . 
ml Engine start  system  fault.  Please  contact 
dealer 
If  the  indicator  light  turns  on and  the mes
sage  appears,  there is a malfunction  in the  en
gine  start  system. 
Drive  to your authorized  Audi dealer  immedi
ately  to have  the malfunction  corrected . 
c:::::> Air suspension 
Applies  to  vehicles:  with  air suspension 
•  Air suspension:  system  fault.  Can contin
ue  slowly  with  max.  35  mph. 
There  is  a malfunction  that  can result  in re
stricted  driving stability . 
Carefully drive a t a maximum  speed  of 35 
mph  (60  km/h)  to your authorized  Audi dealer 
or qualified  workshop  to  have the  malfunction 
corrected . 
• Air suspension:  service  mode.  Vehicle  can 
only  be  moved  with  restrictions 
Carefully drive to your authorized  Audi dealer 
or qualified  workshop  immediately  to  have 
the  service mode  deactivated. 
II Air suspension  fault 
There  is a  system  malfunction  that  can result 
in restricted  driving  stability  or reduced 
ground  clearance. 
Drive to  your authorized  Audi dealer  immedi
ately  to have  the  malfunction  corrected . 
II Air suspension:  vehicle  too  low.  Ground 
clearance  reduced 
The ground  clearance  is very low due to  a sys
tem  malfunction . Wait  until  the  air suspen 
sion  system  has  restored  normal  ground  clear ance . Otherwise,  conditions  such as  an  uneven 
road  surface  can lead  to  vehicle  damage.  
Page 22 of 314
20  Instruments  and  warning/indicator  lights 
The brake system will still respond even 
without  the  assistance of the  ABS system. 
See your  authorized  Audi  dealer  as soon as 
possible to  restore full  braking  performance. 
For  more  information  regarding  the  ABS 
c;,page  193. 
Malfunction  in the  brake  system 
If the  brake  warning  light c;,page  15 and  the 
ABS warning  illuminate 
together there  may  be 
a  malfunction  in  the  ABS, and  there  may  also  be  a  malfunction  in the  brake  system  itself 
c;, &. . The ABS will  not work  and you will  no
tice a change in braking  response and  per
formance. 
In  the  event  of  a malfunction  in the  brake 
system 
the  warning/indicator  light . (USA 
models)/ . (Canada  models)  in the  instru
ment  cluster  flashes  ¢ 
page  15. 
Malfunction  in the  electronic  differential 
lock  (EDL) 
The  EDL works  together  with  the  ABS. The 
ABS warning  light  will  come  on  if there  is a 
malfunction  in  the  EDL system¢ 
page  193. 
See  your  authorized  Audi  dealer as  soon  as 
possible. 
A WARNING 
- If  the f;t11 (USA  models);tlJ  (Canada 
models)  warning  light  does  not  go  out, 
or  if  it comes  on  while  driving,  the  ABS 
system  is not  working  properly.  The  vehi
cle  can  then  be  stopped  only  with  the 
standard  brakes  (without  ABS). You will 
not  have  the  protection  ABS provides . 
Contact  your  Audi  dealer  as  soon  as pos
sible. 
- USA models: If  the . warning  light, the 
fjJ warning  light and the f;t11 warning 
light  come  on  together,  the rear  wheels 
could  lock up  first  under hard  braking. 
Rear  wheel  lock-up  can  cause  loss of  ve
hicle  control  and  an  accident.  Have your 
vehicle  repaired  immediately  by your  au-
l )  . : USA  mode ls o nly 
thorized  Audi dealer  or  a  qualified  work
shop.  Drive slowly  and  avoid  sudden, 
hard  brake  applications. 
- Canada  models: If  the  brake  warning 
light ., the 
B.1 warning  light  and  the 
ABS warning  light 
ti] come  on  together, 
the  rear  wheels  could  lock  up first  under 
hard  braking.  Rear  wheel  lock-up  can 
cause  loss  of  vehicle  control  and  an  acci
dent.  Have  your  vehicle  repaired  immedi
ately  by  your authorized  Audi  dealer  or  a 
qualified  workshop.  Drive slowly  and 
avoid  sudden,  hard  brake  applications. 
(0} Worn  brake  pads 
Ill Brake pads! 
If  the  warning  light  illuminates, immediately 
contact  your  authorized Audi  dealer  or  quali
fied  workshop  to  have all  brake  pads  inspect
ed.  On  USA models  the  warning  light 
Ill 
comes  on  together  with  the  warning  light  •. 
Both  sets  of  brake  pads  on  an  axle  must  al
ways  be  replaced  at  the  same  time. 
A WARNING 
Driving with  bad  brakes  can  cause  a  colli
sion  and  serious  personal  injury. 
- If  the  warning  light 
Ill and  the  warning 
light  •
1
) with  the message Brake pads! 
comes  on  in the  instrument  cluster  dis
play,  immediately  contact your  author
ized  Audi  dealer or  qualified  workshop  to 
have  all  brake  pads  checked  or replaced  if 
necessary. 
EPC Electronic  power  control 
Applies  to  veh icles: w ith  gasoline  engine 
This  warning/indicator  light  monitors  the 
electronic  power  control. 
The l3i warning/indicator  light (Electronic 
Power  Control)  illuminates  when  you  switch 
-
the ignition  on  as a function  check.  ..,.  
Page 23 of 314
M N 
0 <.J 'SI: ,...., \!) 1.1'1 ,...., 1.1'1 ,...., 
Instrument s and  warnin g/indic ator  ligh ts 21 
@ Tips 
If  this  warning/indicator  light  illuminates 
while  you  are  dr iving,  then  there  is  a  mal
function  in the  engine  electron ics.  Have 
the  malfunction  corrected  as  soon  as  pos
sible  by your  authorized  Aud i dealer  or 
qualified  repair  fac ility. 
W Glow  plug  system 
Appl ies  to  vehicles: with  diesel e ngin e 
The control  light  illuminates  when  the  glow 
plug  system  is active. 
If  the IJ indicator  light  illum inates,  the  glow 
plug  system  is active.  You should  start  the  en
gine  immediately  after  the  indicator  light 
switches  off. The  indicator  light  only  illumi nates  for  approx imately  1 second  if the  en
g ine  is wa rm  or  if the  outside  temperature  is 
above  46  QF  (8  Q(). 
@ Tips 
- If the  glow  plug  indicator  light  illumi
nates  while  driving,  there  is an  engine 
control  malfunction.  The  engine  shou ld 
be  checked  immediately. 
- If the  indicato r light  does  not  illum inate 
at  all  when  switching  the  ignition  on, 
there  may  be  a  malfunction  in the  glow  pl ug  system . The  engine  should  be 
checked. 
a Malfunction  Indicator  Lamp  (MIL) 
The  Malfunction  Ind icator  Lamp  (MIL) is part 
of  the  On-Board  Diagnostic  (OBD II)  system. 
The  symbol 
(4 lights  up  when  the  ignit ion  is 
sw itched  on  and  w ill turn  off  after  the  engine 
has  started  and  has  sett led  at  a  constant  idle 
speed.  This  ind icates  that  the  M IL is working 
p roperly. 
The  warning  light  illuminates  when  there  is a 
malfunct ion  in the  engine  e lectronic  system. 
Contact  your  author ized  Audi dealer  and  have 
the  ma lfunction  co rrec ted. 
An improperly  closed  fuel  filler  cap  may  also 
cause  the  MI L light  to  illum inate 
¢ page  216. 
For  more  information  ¢ page  29. 
_, Diesel  particulate  filter  clogged 
Appl ies to  vehicles: wi th diese l en gine a nd diesel  particu
late  filter 
II Pa rti cul ate filter : S ys tem  f ault  See  own 
er 's manual 
When  the II symbo l illuminates,  you  can  a l
te r you r d riving style  to  ass ist  the  filter  se lf
cl ean ing  process.  Drive for  approximately  15 
minutes  with  the  se lector  lever  in  the  S posi
tion  at  a  minimum  speed  of  37  mph  (60  km/  h)  and  an  engine  speed  of  approximately 
2,000  RPM. The  temperat ure  increase  that 
will  result  from  this  can  burn  off  the  soot  in 
the  fil ter.  The  symbol  will  switch  off  when  the 
cleaning  is successful.  After  a successful 
clean ing,  there  is  no  need  to  bring  the  car  to 
an  authorized  dea ler  or  qualified  workshop 
be cause  th is  is  part  of  no rma l vehicle  opera 
t ion. 
If the  symbol II does  not  switch  off,  see  your 
authorized  dea ler  o r other  qualified  workshop 
to  have  the  p rob lem  cor rected. 
For  more  information  on  the  diesel  part icu
late  filter,  refer  to ¢ 
page  202. 
A WARNING 
Always  adapt  your  speed  to  the  current 
wea ther,  road  and  traffi c conditions.  You 
should  never  disobey  traffic  laws  in order 
to  fo llow  driving  recommendations . 
!7 Engine  speed limitation 
Applies to  vehicles : wi th  engine  speed  limitatio n 
(m Engine speed ma ximum  X XXX RPM 
-
The  eng ine  speed  is automatically  limited  to 
the  speed  d isplayed  in the  driver  info rmation 
system.  This  pro te cts  the  engine  from  over 
heating. 
T he  eng ine  speed  limitation  deactivates  once 
the  engine  is  no  longer  in  the  cri tical  tempera
tu re  range  and  yo u have  re leased  the  accelera-
tor  pedal  once. 
Ill>  
Page 24 of 314
22  Instruments  and  warning/indicator  lights 
If  the  engine  speed  limitation  was activated 
by an engine  control  malfunction , the  indica
tor  light ~ also t urns  on.  Make sure  that  the 
speed  does  not  go above the  speed  displayed . 
Drive to  your authori zed Aud i dealer  immedi
ately  to  have t he malfunction  corrected . 
<t=:r".,. Engine  oil  sensor 
II Oil level!  Sen sor defective 
If the  symbol  illuminates,  contact  your au
thor ized Audi dealer  a nd  have the  o il sensor 
i n spected . Until you have t his done , ch eck the 
oil level each  time you refuel  just  to  be on the 
safe  side 
c::> page 2 26 . 
Bil Fuel  level  indicator 
ID'J Plea se  refuel 
If the  indicator  light  turns  on fo r the  fi rs t 
time  and  the  message  app ears,  ther e ar e 
about  2.6  gallons  (10  liters)  of f ue l left  in the 
t an k. T ime to  refue l 
c::>page 216 . 
Ill Tank system  malfunction!  Contact  dealer 
If the  i ndicator  light  tu rns on and  t his  mes
sage  appears,  t here  is a ma lfunction  in the 
tank  system . 
Drive to  yo ur autho rized Aud i dea ler  immedi
ately  to  have t he malfunction  corrected. 
~ Windshield  washer  fluid  level 
~ Please  refill  washer  fluid 
If the  symbo l illuminates,  add windshield 
washer  f luid to  the  washer  system/headlight 
washer  system* 
c::> page 235. 
~•  Windshield  wipers 
m Windshield  wiper  defective 
There is a  malfunct io n  with  the  w indshield 
wipers. 
D rive to  yo ur autho rize d Au di dea ler  immedi 
ate ly to  have t he  malfunction  cor rected . 
~/0$ Defective  light  bulb  warning 
S:j -If t he  in dicato r light  tu rn s on, a  bu lb h as 
f ailed.  The message  in dicates  t he  loca tio n of 
t h e b ulb . 
II-if a rea r fog  lamp  has  fa iled , the  ind icator 
li gh t tur ns on to  ind icate  the loca tion on  the 
vehicle. 
Vehicle  lights : malfunction 
If the  message  appears,  there  is a malfu nc
t ion  in the  headlights  o r light  sw itch. 
Drive to your authorized  A udi dealer  immedi 
ate ly to  have the  ma lfunction  corrected. 
.&_ WARNING 
- Light bulbs  a re  pr ess urized and  could ex
p lode w hile they  are  being  changed  ca us
i n g s erio us pe rsonal  injury . 
- Wo rk with  due care when  han dling the 
h igh-vo ltage  sect io n o f gas disc harge 
(xe non)  ligh ts.  Failur e to  do so  could re
s ult  in death  or ser ious  injury . 
(D Tips 
Have t he b ulb replaced  or the  co nnect ion 
r epaired  by y our auth orized A udi Se rvice 
d epartment . 
~{i) Headlight  range  control 
II Headlight  range  control : defective! 
If the  symbol  illuminates,  the  headlig ht  range 
control  is no lo nger  wor king properly . Have 
t h e sys tem  checked  and  repaired  at yo ur Audi 
d eal er. 
:sO Adaptive  Light 
App lies  to  veh icles : w ith  Adapt ive  lig ht 
r!J Audi adaptive  light:  sy stem  fault 
If the  indicato r light  turns  on and  this m es
sage  appears,  there  is a  malf unct io n  in  th e 
adaptive  ligh t syste m. The head lig ht s s till 
funct ion.  
Page 26 of 314
24  Instruments  and  warning/indicator  lights 
Driver  information 
display 
Overview 
Fig. 4 Driver  information  system in  the  instrument 
cluster 
Fig.  S Display:  example  of th e  information  line 
The  driver  information  system  contains  infor
mation @ that  is  displayed  on tabs @ 
c:;, fig. 4. The following  content  is  possible  de
pending  on  vehicle  equipment: 
@ 
® 
Tab Content 
1 Vehicle  functions : 
On-board  computer c::> page 25 
Efficiency  program* c::> page 26 
Digital  speedometer 
Cruise  control* 
c;, page 82 
Adaptive  cru ise  con trol  and  braking 
guard* 
r::;, page 84 
Audi  active  lane assist* c;, page 93 
Display darkened 
2 Indicator  lights and  messages 
Warning  when  a  door,  the  hood  or  the  rear  lid  is not  closed 
Service  interval  display 
c::> page 2 7 
Speed  warning  system c;, page 81 
@ ® 
Tab Content 
3 Night  vision assistant* c;, page 103 
4 Audio/video 
s Telephone* 
6 Navigation* 
T he  second  and  th ird tabs  are  only  vis ible  if at 
least  one  indicator  light  or  message  is shown 
or  if that  system  is  sw itched  on. 
The  status  line © is located  in  the  bottom 
part  of the  display 
c::> fig. 4. It  displays  the  ex
terior  temperature , time,  selector  lever posi
t ion,  trip  odometer  and odometer. 
For  some  vehicle  functions,  you  can  access  the 
trip  information  from  the  temporary  memory 
c::> page 26 in the  line (D c::> fig. 5. 
_& WARNING 
= -
- Never  rely exclusively  on the  outside 
temperature  display  to  determine  if a 
road  surface  is icy or  not. Keep  in  mind 
that  road  surfaces,  especially  bridges 
and  overpasses,  could  be  ice  covered  and 
slippery  even  at  an  outside  temperature 
above  41  °F 
(+5 °(). 
-Always  remember,  even if the  "snow
flake"  symbol  (ice warning)  does  not ap
pear  in the  d isplay,  black  ice could  be  on 
the  road. 
- Always reduce  your  speed  and  drive  with  special  care  in cold  weather  cond itions 
when  the  chance  of  encountering  icy 
road  surfaces  increases. 
(D Tips 
-If  the  vehicle  is stationary,  or  if you  are 
dr iving  at  a very  low speed,  the  tempera
ture  shown  in the  d isplay  m ight  be 
slightly  higher  than  the  actual  outside 
temperature . Thi s  is caused  by the  heat 
being  radiated  from  the engine. 
- Yo u can  select  the  units  used  for temper
ature,  speed  and  other  measurements  in 
the  MMI. 
IJ,- 
Page 31 of 314
M N 
0 I.J "". rl I.O 
"' rl 
"' rl 
Instrument s  and  warning /indicator  lights  29 
Adjusting  the  height 
The height  of  the  display  can  be a djus ted to 
t he individual  driver . 
..  Make sure you  a re seated  cor rect ly 
<=>page 127. 
..  Turn  the  knob~  to  adjust the  displ ay . 
Settings  in the  MMI 
..  Se lect: I CARI funct ion  button > ( Car )*  s ys
tems 
control  button > D river Assist  > Head
up Display > Head-up Display content 
or 
Di splay brightne ss . 
Display  content 
In  the  MMI, you ca n specify which  information 
should  be displayed : 
- Cruise contro l system* 
- Navigatio n information* 
- A udi adaptive  cruise control * 
- Audi  a ct ive lane  assist* 
- Night  vis ion assistant* 
The speed display  and some of  the  red indica tor  lights  cannot  be hidden  in the  MMI. 
Display  brightness 
You can ad just the  display  brightness  in t he 
MMI.  The display  brightness  decreases auto
mat ica lly as the  amount  of  light  decreases. 
The basic leve l of  brightness  is adjusted  with 
the  ins trumen t  illum ina tion ¢ 
page  46 . 
(D Note 
To prevent  sc ratches on t he g lass covering 
the  Head-up  Disp lay, do not  place any ob
jects  in the  proj ection  opening. 
(D Tips 
- Sung lasses w ith  polar izat ion fi lters  an d 
unfavorable  lighting  condit ions can af
fect  the display. 
- A specia l w indshield  is  needed for  the 
Head-up  Display funct io n. 
- Fo r information  on cleaning,  refer  to 
¢ table  on page  211. 
On-Board  Diagnostic 
system  (OBD) 
Malfunction  Indicator  Lamp  (MIL ) 
The Ma lfunction  Indicator  Lamp  ( MIL ) ¢'4 in 
the  instr ument  cluster  is part  of  the  On-Board 
Diagnostic  (OBD II)  system . 
T he wa rni ng/indicator  light  ill uminates  when 
the  ignit io n  is switched  on and goes out  after 
the  engine  sta rts  and the  id le has stab ilized. 
This indicates  that  the  MIL  is working  proper
ly . 
If  the  light  does not go out afte r th e en gine 
is started,  or  illuminates  while  you  are dr iv
ing,  a mal function  may exist  in the  engine  sys 
tem. 
If the  lig ht  illum inates, the  catalyt ic con
verter  could  be damaged . 
Contin ue driving 
with  reduced power (avoid
ing s ustained  high  speeds and/or  rapid  accel
erations)  and have the  cond ition  corrected. 
Contact  your  aut horized  Audi  dea ler. 
If  the  light  illuminates,  the  e lectronic  speed 
limiter  may also  be malfunct ioning . For more 
information 
c> page  30,  Electronic  speed 
limiter. 
An improperly  closed fuel  filler  cap may also 
cause the  MIL  light  to  illuminate 
c> page  216. 
On-Board  Diagnostics 
Fig. 1 6 Location  o f Data  Li nk Co nnector  (D LC) 
On-Board  Diagnostics  monitors  the  com po
nents  of  your  emission  cont ro l system.  Each 
monitored  component  in your  engine  system 
Iii>- 
Page 32 of 314
30  Instruments and warning /indicator  lights 
has been  assigned  a code.  In case of a ma l
function,  the  component  will be identified 
and  the  fault  stored  as a code  in the  contro l 
module  memory. 
The MIL  light  may a lso  illuminate  if there  is a 
leak in the  on-board  fue l vapor  recovery sys
tem . 
If the  light  illuminates  after  a refue lling, 
stop  the  vehicle and  make sure the  fuel filler 
cap is properly closed  ¢ 
page 216. 
In order  to  make an accurate  diagnosis, the 
stored  data  can only  be displayed  using spe
cial diagnostic  equipment  (generic scan tool 
for OBD) . 
In order  to  connect  the  special  diagnostic 
equipment,  push  the  plug  into the  Data  L ink 
Connector  (DLC). The DLC is  located to  the 
right  of the  hood  release¢ 
fig. 16. 
Your authorized  Audi dealer  or a qualified 
service station  can  interpret the  code and  per
form  the  necessary  repair . 
A WARNING 
Do not  use the  diagnostic  connector  for 
personal  use . Incorrect  usage  can cause 
malfunctions,  which can increase  the  risk 
of a coll ision! 
Electronic  speed  limiter 
-
Your veh icle may  be factory  equipped  with 
tires  that  are  rated  for  a maximum  speed  of 
130  mph  (210  km/h). This  is less  than  the 
maximum  speed  of you r vehicle.  To reduce the 
risk of sudden  tire  failure and  loss  of control  if 
the  vehicle is operated  at  excessive speeds, 
your veh icle also  has an electronic  speed  limit
er. The electronic  speed  limiter  prevents  your 
vehicle from  go ing faster  than  the  tire speed 
rating.  For more  informat ion ¢ 
page 257 . 
If the  engine  control  unit  receives faulty vehi
cle road speed  s ignals,  the  Malfunction  Indi
cator  Lamp (MIU 
¢'4 will illuminate. If this 
occurs, contact  the nearest  authorized  Aud i 
dealer  for  assistance.  S  models 
Your 
vehicle's  top speed  is elect ron icall y limit
ed to  155 mph  (250  km/h). 
If the  engine  control  unit  receives faulty veh i
cle  roadspeed  signals,  the  Malfunction Indica
tor  Lam p (MIL) 
¢'4 will illuminate . If this oc
curs, contact  the  nearest authorized  Audi 
dealer  for  assistance. 
_& WARNING 
-=  -
Always observe  the  posted speed  limits 
and  adjust  your speed  to  suit  prevailing 
road,  traffic and  weather  cond itions.  Never 
drive  your vehicle  faster than  the  maxi
mum  speed  rating  of the  tires installed .  
Page 34 of 314
32  Opening and  clo sing 
Remov ing the  mechanical  key 
Fig. 18 Remote  control master  key:  remo vin g the  me
ch ani cal  key 
> Press  the  release  button  @c::> fig. 18. 
..  Pull the  mecha nica l key @ out  of the  master 
key. 
Using  the  mechan ica l key, you  can: 
- lock  and unlock  the  storage  compartment 
on  the  passenger's  side 
c::> page  60 . 
-lock  and unlock  the vehicle  manually 
<=>page  36. 
-lock  the front  and  rear  passenger  doors  me
chanically 
c::> page  37. 
Master  key battery  replacement 
Fig . 19  Remote  mas ter key:  Removing  the batter y 
ho lder 
Ch eck light  in the  master  ke y 
The check  light @in the  master  key  provides 
information  about  d ifferent  cond itions . 
..  The  check  light  comes  on  briefly  once  when 
a  button  is pressed , and  during  an  "inquiry" 
by  the  convenience  key system . 
> If the  check  light does not  come  on,  the  bat
tery  is  dead  and  has  to  be  rep laced . In  addi
t ion,  when  the  battery  is dead  the 
II sym 
bol  appears  in the  instrument  cluster  dis- play  as well  as  the  message: 
Plea
se ch ange 
key b attery. 
Ma ster  key battery  replacement 
•  Pull the  mechanical  key out  of the  master 
key 
c::> page  32 . 
..  Press  the  release  button @ on  the  battery 
holder  and  at  the  same  time  pull  the  battery 
holder  out  of the  master  key  in the  direction 
of  the  arrow . 
..  Install  the  new  battery  CR 2032  with  the 
"+" sign  facing  down. 
•  Push  the  battery  holder  carefully  into the 
maste r key  . 
•  Insta ll the  mechan ica l key. 
@ For the  sake of the  environment 
D ispose  of  dead  batteries  properly  so  as 
not  to  poll ute  the  environment. 
(D Tips 
The  replacement  battery  must  be  the 
same  specification  as  the  original. 
Electronic immobilizer 
The  immobilizer  helps  to prevent  unauthor
ized  use of your  vehicle . 
A computer  chip  ins ide  your  key  automatically 
deactivates  the  electron ic immobilizer  when 
the  key  is  inside  the vehicle . When  you  remove 
the  key from  the  vehicle,  the  electron ic  immo
bilizer  is automatically  ac tivated  once  aga in . 
_& WARNING 
-
A lways  take  the  key with  you  when  you 
l eave  the  vehicle . T he  key can  disarm  the 
e lectronic  engine  immobilize r and  permi t 
an  unauthorized  person  to  start  the  engine 
and  enable  operation  of the  vehicle  sys
tems  such  as  power  window  or  power  sun
roof  leadi ng  to  serious  personal  injury. 
(D Tips 
- The  vehicle  cannot  be  started  if an  una u
thorized  key is used . The  vehicle  may  not 
start  if another  radio  device  s uch as  a  key  "'  
Page 41 of 314
M N 
0 I.J "". rl I.O 
"' rl 
"' rl 
Child  safety  lock  for 
the  rear  doors 
The power  child safety  lock locks  the  rear  win
dows  and  prevent  the  rear doors  from  being 
opened  from  the inside . 
Fig. 30 Sectio n fr om driv er' s  door : child sa fety  lock 
b uttons 
•  To activate  the  child  safety  lock for  the  left/ 
right  rear  door,  press  the  left/right  button 
[!l 
in the  driver's  door¢ fig.  30. The  light  in the 
button  w ill turn  on. 
•  To  deactivate  the child  safety  lock  for  the 
left/right  rear  door , press  the  left/right  but
ton [!] in the  driver's  door.  The  light  in the 
button  turns  off. 
The  following  features are  switched  off: 
- The  interior  door  handles  in the  rear  doors, 
- The  power  windows  in the  rear  doors . 
In  order  to  activate  the  ch ild  safety  lock on 
the  left  and  the  right  side , press  the  two  safe
ty  buttons 
[!l in  succession . 
Power  windows 
Controls 
The driver can  control all power  windows. 
Fig . 31 Sectio n of t he dr iv er 's d oor:  Control s 
Opening  and  closing  39 
All power  window  switches  are  prov ided  with 
a two-po sition function : 
Opening  the  windows 
•  Press  the switch  to  the first  stop and  hold  it 
until  the window  reaches  the desired  posi
tion. 
•  Press  the  switch  briefly  to  the 
second stop 
to  automatically  open  the  window. 
Closing  the  windows 
• Pull the  switch  to  the first  stop and  hold  it 
until  the  window  reaches  the desired  posi
tion. 
•  Pull  the  switch  briefly  to  the 
second  stop to 
automatically  close  the  window. 
Power  window  switches 
@ Driver's door 
® Passenger's  door 
© Left  rear  door 
@ Right rear door 
& WARNING 
-When  you  leave  your  vehicle  -even  if on 
ly  briefly  -always  take  the  ignition  key 
with  you . This  applies  particularly  when 
children  remain  in the  vehicle.  Otherwise 
the  children  could  start  the  engine  or op
erate  electrical  equipment  (e .g . power 
windows).  The power  windows  are  func
tional  until the  driver's  door  or  passeng
er's  door  has  been opened. 
- Be careful  when  clos ing  the  w indows . 
Check to  see  that  no one  is in the  way, or 
serious  injury could result! 
- When  locking  the vehicle  from  outside, 
the  vehicle  must  be  unoccupied  since  the 
windows  can  no  longer  be opened  in an 
emergency. 
(D Tips 
After  the  ignition  has  been  switched  off, 
the  windows  can still  be opened  or  closed 
for  about  10 minu tes.  The  power  windows 
are  not switched  off  until  the  driver's  door 
or  passenger's  door  has been  opened.