AUDI S8 2016 Owners Manual
Page 191 of 302
Smart  Technology Notice  about  data 
recorded  by  the  Event 
Data  Recorder  and 
vehicle  control  modules 
E vent  Dat a Recorder 
This  vehicle  is equipped  wi th an  Event  Data  Re
corder  (EDR) . The  main  purpose  of  an  EDR is to 
record,  in certain  crash  or  near  crash-like  situa
tions,  such  as  an  a irbag  deploym ent  or  hitting  a 
road  obstacle,  data  that  will  assist  in  understand
ing  how  a veh icle 's systems  performed . The  EDR 
is designed  to  record  data  related  to  veh icle  dy
n amics  and  safety  systems  for  a short  period  of 
time,  typically  30  seconds  or  less.  The  EDR in this 
ve hicl e  is  designed  to  reco rd  such  data  as : 
- How various  systems  in your  vehicle  were  oper
at ing; 
- Whether  or  not  the  driver  and  passenger  safety 
belts  were  buckled/fastened; 
- How far  ( if at  all)  the  dr iver  was  depressing  the 
accelerator  and/or  brake  peda l; and, 
- How fast  the  ve hicle was  trave ling. 
These  data  can  he lp provide  a  better  understand
ing  of  the  c ircumstances  in which  crashes  and  in 
juries  occur.  NOT E: EDR data  are  recorded  by yo ur 
veh icle  only  if a  non-triv ia l crash  situation  occurs; 
no  da ta are  recorded  by the  EDR under  normal 
driving  conditions  and  no  personal  data  (e .g ., 
n ame,  gender,  age,  and  crash  location)  a re  re
corded . H oweve r,  other  pa rties,  such  as  law  en
fo rcement,  cou ld  combi ne  the  EDR data  w it h  the 
t ype  of  personally  iden tifying  dat a routine ly ac
q ui red  during  a crash  invest iga tion . 
To  read  data  reco rded  by an  EDR , specia l equip
men t  is  req uired,  a nd  access  to  the  ve hicle  or  the 
E DR  is  needed.  In  add it ion  to the  vehicle  man u
facturer,  other  parties,  s uch  as  law  enforcement, 
that  have  the  specia l equipment,  can  read  the  in
formation  if they  have  access  to  the  vehicle  or  the  E DR . 
Some  state  laws  restrict  the  re trieval  or  down 
l oading  of  data  stored  by  ED Rs insta lled  in a vehi 
cle  for  the  express  purpose  of  retrieving  data  af-
Sma rt  Technology 
ter  an  accident  or  cras h event  without  the  own 
er 's consent. 
Audi  will  not  a ccess  the  EDR and/or  sim ilar data 
o r  give  it  to o thers  -
- unless  the  vehicle  owne r (o r lessee  if the  vehi
cle  has  been  leased)  ag rees;  o r 
- upon  the  official  request  by the  police;  or 
- upon  the  order  of  a  court  of  law  or  a  govern-
ment  agency;  or 
- for  the  defense  of  a  lawsuit  through  the  jud ic ia l 
discovery  process. 
- Aud i may  a lso  use  the  data  for  research  about 
veh icle  operation  and  safety  performance  or 
prov ide  the  data  to  a third  party  for  research 
purposes  without  identify ing  the  specific  veh i
cle  or  info rmat io n  about  the  ident ity  of  its  own
er  or  lessee  and  only  afte r th e  re co rded  veh icle 
d ata  has  been  a ccessed. 
Vehicle  control  modules 
Your  vehicle  is  also  equ ipped  w ith  a  number  of 
electronic  control  modules  for  va rious  vehicle 
systems,  such  as  engine  ma nagement,  emiss io n 
contro l,  airbags , and  s afety  be lts . 
These  elec tronic  control  modules  record  data 
dur ing  no rma l vehicle  operation  that  may  be 
neede d by  trained  tech nicians  for  diagnost ic and 
r e pa ir  purposes.  The  re co rding  c apab il ity  of  these 
modules  is  lim ite d  t o dat a (no  sound  is record
ed).  Only a  sma ll amount  of  data  is actua lly re
corded  over  a very  limited  period  of  time,  or  stor
ed  when  a  system  fault  is  detected  by a  contro l 
module . Some  of  the  data  stored  may  relate  to 
vehicle  speed,  direction,  or  braking,  as  well  as  re
straint  system  use  and  performance  in the  eve nt 
of  a  crash . Stored  da ta ca n also  on ly be  read  a nd 
down loaded  w it h  specia l equipment  that  is d i
r ectly  connected  to  the  vehicle. 
(D Tips 
Your  vehicle  may  be  equipped  w ith  Aud i con
nect . Your  use  of  certai n Aud i connec t fea-
tures  requi res  wire less  serv ices  tha t are  pro-
v ided  by a  third  party  wireless  telecomm uni
cations  provi der.  For  de tails  regarding  how  in
formation  obtained  through  Aud i connect  is 
collected,  p rocessed,  transmitted,  used,  and  ..,. 
189  
Page 192 of 302
Smart  Technology 
shared,  please  see  your  contract  with  the 
wireless  te lecommunications  provider  and  the 
"About  Audi  connect"  tab  in your  vehicle's 
MMI: 
! MENUI button> Audi connect>  About 
Audi  connect. 
Electronic  Stabilization 
Control  (ESC) 
Description 
ESC  helps  to improve  road  holding  and  vehicle 
dynamics  to  help  reduce  the  probability  of  skid
ding  and  loss of  vehicle  control.  It  works  only 
when  the  engine  is  running. ESC  detects  certain 
difficult  dr iving  situations,  including  when  the 
veh icle  is  beginn ing  to  spin  (yaw)  out  of  contro l 
and  helps  you  to  get  the  vehicle  back  under  con
trol  by se lectively  braking the  wheels,  and/or  re
ducing  engine  power  and  providing  steering  as
sistance  to  help  hold  the  vehicle  on  the  driver's 
intended  course.  The  indicator  light 
GI in the  in
strument  cluster  blinks  when  ESC is taking  action 
to  help  you  control  the  vehicle. 
ESC  has limitations.  It  is  important  to  remember 
that  ESC cannot  overcome  the  laws  of  physics.  It 
will  not  always  be able  to  help out  under  all  con
ditions  you  may  come  up  against . For  example, 
ESC  may  not  always  be  able  to  help  you  master 
situations  where  there  is a  sudden  change  in the 
coefficient  of  friction  of  the road  surface.  When 
there  is  a  section  of dry  road  that is suddenly  cov
ered  with  water,  slush  o r snow , ESC  cannot  per
form  the  same  way  it  wou ld on  the  dry surface.  If 
the  vehicle  hydrop lanes  (rides  on  a  cushion  of  wa
ter  instead  of  the  road surface),  ESC wi ll not  be 
able  to  he lp you  steer  the  vehicle  because  contact 
with  the  pavement  has  been  interrupted and  the 
vehicle  cannot  be  braked  or  steered.  During  fast  cornering,  part icularly  on  w inding  roads,  ESC 
cannot  always  deal  as  effective ly w ith  difficult 
driving  situat ions  than  at lower  speeds . When 
towing  a  trailer,  ESC  is  not  able  to  help  you  re
ga in control  as  it would  if you  were  not  towing  a 
trai ler. 
Always  adjust  your  speed  and driving  sty le  to 
road,  traffic  and weather  conditions.  ESC cannot 
override  the vehicle's  physical limits,  increase  the 
190 
available  traction,  or  keep  a vehicle  on  the road  if 
road  departure  is a  result  of  driver  inattention. 
Instead,  ESC improves  the  possib ility  of  keeping 
the  vehicle  under  control  and  on  the  road  during  extreme  maneuvers  by  using the  driver's  steering 
inputs  to help  keep  the  vehicle  going  in the  in
tended  direction . If you  are  traveling at  a speed 
that  causes  you  to  run  off  the road  before  ESC 
can  provide  any  assistance,  you  may  not  exper i
ence  the  benefits  of  ESC. 
ESC is switched  on  all  the  time. In  certa in s itua
tions  when  you  need  less  traction,  you  can  sw itch 
off  ASR by  press ing the  button  above 
~ page 192, fig. 186 the  selector  lever.  Be sure 
to  switch  ASR on  again  when  you  no  longer  need 
l ess  traction. 
The  following  systems  are  integrated  in the  ESC: 
Anti-lock  braking  system  (ABS) 
ABS prevents  the  wheels  from  locking up  when 
braking.  The  vehicle  can  still  be  steered  even  dur 
i ng  hard  braking . Apply  steady  pressure to  the 
brake  pedal.  Do not  pump the pedal.  A  pulsing in 
the  brake  pedal  indicates  that  the system  is help 
i ng  you  to  brake  the  vehicle. 
Brake  assist system 
The  brake  assist  system  can  decrease  braking  dis
tance.  It  increases  braking  power  when  the  dr iver 
presses  the  brake pedal quickly  in emergency  sit
uations.  You must  press  and  hold  the  brake  pedal 
u nt il the  situation  is  over. In  vehicles  with  adap 
tive  cruise  control*,  the  brake assist  system  is 
more  sensitive  if the  d ista  nee  detected  to  the  ve
hicle  ahead  is too  sma ll. 
Anti-slip  regulation  (ASR) 
ASR reduces  engine  powe r when  the  dr ive  wheels 
begin  to  spin and  adapts  the  force  to  the road 
cond itions.  This makes  it  easier  to start,  acceler
ate  and  drive  up  hills. 
Electronic  differential  lock  (EDL) 
The EDL brakes  wheels  that are  spinning  and 
transfers  the  drive  power  to  the  other  wheels. 
This  function  is  not available  at  higher  speeds .  
Page 193 of 302
In extreme  cases,  EDL automatically  switches  off 
to  help  keep  the  brake  on  the  braked  wheel  from 
overheating.  EDL w ill switch  on  aga in a utomati
cally  when  conditions  have  returned  to  normal. 
Ste ering  recommendat ion 
The  ESC helps  to  stabilize  the  ve hicle  by chang ing 
the  s teering  torque . 
I n vehicles  with  dynamic  steering*,  ESC also 
h e lps  to s tabilize  the  stee ring  in  critical  s itua
tions. 
Selective  wh eel  torqu e control 
Select ive whee l torque  control  is  used  when  driv
in g on  curves . T he front  wheel  on  the  inside  of 
the  cu rve or  both  wheels  o n the  inside  of  the 
curve  are  br aked  selec tively  as needed . This  al 
l ows  more  precise  driv ing  in curves . The  applica
b le  system  may  not  activate  when  driving  in wet 
or  snowy  conditions. 
Automatic  post-collision  braking  system 
The  "Automatic  post-co llision  bra king  system" 
can  help  to  reduce  the  ris k  of  slid ing  and  of other 
coll is ions  after  an  accident.  If  the  airbag  contro l 
module  detects  a  col lision  above  a  certain  vehicle 
speed,  the  vehicle  is  b raked  by t he  ESC. 
The  vehicle  does  not  b rake  automatica lly if : 
- the  driver  p resses  the  accelerator  pedal,  or 
- the  braking  force  generated  by the  pressed 
brake  pedal  is  greate r than  the  brak ing  force 
that  wou ld  be  initiated  by the  system,  or 
- the  ESC, the  brake  system  or  the  vehicle  electri 
ca l system  are  not  f unction ing . 
Sma rt  Technology 
A WARNING 
- The  ESC and  its  integrated  systems  cannot 
overcome  the  limits  posed  by natural  physi
cal  laws . This  is especia lly important  on  s lip
pe ry o r we t  roads . 
If the  systems  beg in act
i n g to  stab iliz e your  ve hicle, yo u should  im
mediately  change  yo ur speed  to  ma tch the 
road  and  traffic  con dit ions . Do not  let  the 
increased  safety  provided  by these  systems 
tempt  you  to  take  r isks.  Do ing  so  will  in
crease  the  r isk  of  a  loss  of  vehicle  contro l, 
coll is ion  and  serious  pe rsonal  in juries. 
- Always  adapt  your  speed  to  road,  traffic  and 
weather  conditions.  The  risk  of  losing  con
trol  of  the  vehicle  increases  when  driving  too  fast,  especially  through  curves  and  on 
slippery  or  wet  roads,  and  when  driving  too 
close  to  vehi cles  up  ahead.  The  ESC and  its 
i n teg ra ted  systems  ca nnot  alw ays  preven t 
coll is io ns  -the re  is  s till a  risk  of  accide nts! 
- Always  accelerate  w ith specia l care  on  even, 
smooth  s urfaces  su ch as  those  that  are  wet 
or  covere d wi th  ice  and  snow.  The  d rive 
whee ls can  spin  eve n wit h these  assistance 
systems  that  cannot  always  help  to  reduce 
the  risk  of  loss  of  vehicle  contro l. 
(D Tips 
-ABS a nd ASR only  wo rk cor rec tly when  all 
four  wheels  a re  equipped  wi th  identi cal 
tires.  Diffe rent  tire  s izes  can  lead  to  a  red uc
tion  i n engine  power . 
- You may  hear  noises  when  the  systems  de 
scribed  are  working . 
191  
Page 194 of 302
Smart  Technology 
Switching  on and  off 
ESC turns  on automatically  when you  start  the  engine. 
Fig. 186 Center  console w it h  ESC O FF but ton 
ESC level s 
Sport  mode  on 
The following  situations  are exceptions  where  it 
may be useful  to  switch  on  sport  mode  to  allow 
the  wheels  to spin: 
- Rocking the  vehicle  to  free  it  when  it  is stuck 
- Driving  in deep  snow  or on  loose ground 
- Dr iving  with  snow  chains 
Sport  mode  off 
Behavior 
The ESC and ASR  stabilization functions  The full  stabilization  function of  the  ESC 
are  limited ¢ 
A:,.. and ASR  is ava ilable  again . 
Operation Press the 00 button.  Press 
the[!] button  again. 
Indicator II turns  on. II turns  off . 
lights 
Driver mes- Stabilization  control (ESC):  Sport  Warn- Stabilization  control (ESC): On 
sages  ing!  Reduced stability 
A WARNING 
You should  only  switch  sport  mode  on  if your 
dr iv ing  abilities  and  road condit ions  perm it . 
- The stabilization  function  is limited  when 
sport  mode  is sw itched  on.  The driving 
wheels  cou ld spin  and the  vehicle  could 
swerve,  espec ially  on  s lick o r sli ppery  road 
s urfac es. 
Sport  mode  cannot  be sw itched  on  if  t he 
cruise  cont rol  system*  or  the  adaptive  cru ise 
cont rol*  is switched  on. 
Braking 
What  affects  braking  efficiency? 
New  brake  pads 
During  the  first  250  miles  (400  km),  new  brake 
pads do  not  possess the ir full  braking  effect,  they 
have to  be  "broken in" first ¢ 
.1:,.. The break-in  pe
riod  can be considerably  longe r fo r vehicles  with 
192 
ceramic  brake  rotors*. You can compensate  for 
this  slightly  reduced braking  power  by push ing 
harder  on the brake  pedal.  Avoid  heavy braking 
lo ads  during  the break-in  period. 
Operating  conditions  and driving  habits 
The brakes on today's  automobiles  are still  sub 
j ect  to  wear,  depending  large ly on  operating  con
ditions  and driving  habits¢,& . On vehicles that 
are  either  driven  mostly  in stop-and-go  city  traf
fic  or  are driven  hard,  the  brake  pads  should  be 
checked  by your  authorized  Audi  dealer  more  of 
ten  than  specified  in the 
Warranty & Mainte
nance booklet . 
Failure  to have your  brake  pads 
inspected  can result  in  reduced  brake perform
ance. 
On steep  slopes, you  should  use the  brak ing ef
fect  of  the  engine. T his way, you  prevent  unnec
essary wea r on  the  brake system.  If you  mus t use 
your  brakes,  do not  hold  the  brakes down  contin-
u ously.  Pump  th e brakes  at  intervals.  ..,.  
Page 195 of 302
Operating  noi se 
Noises may occur when  braki ng depend ing on  the 
speed,  braking  force  and outside  cond itions  s uch 
as temperature  and  humidity. 
Due to  the  na ture of  t he mate ria ls used  in ce ram
ic bra ke rotors*,  noises m ay  become  mo re appa
ren t at  low  speeds. 
Effect  of  wat er and  road  salt 
In  ce rtain  situat ions, for  example  after  driving 
through  water,  in  heavy ra in, afte r ove rnig ht  con
densat ion  or  after  washing  your  car, the  braking 
effe ct  can be  red uced by moisture  or  ice on the 
b rake rotors  and  brake  pads.  The brakes  must  be 
dried  first  w ith  a few  careful  brake  applications . 
At  highe r speeds and with  t he windsh ie ld wipers 
turned  o n,  the bra ke pads p ress against  the  bra ke 
rotors  for  a short  amount  of  time . This occ urs at 
regular  intervals  without  the  driver  noticing  and 
provides  for  better  bra ke response  time  under 
wet  conditions. 
The effectiveness  of  the  brakes can be reduced 
when the vehicle is dr iven on a salt-covered road 
and the  brakes are not  used.  L ikewise, you  clean 
off  accumu lated  salt  coat ing from  brake  discs 
and  pads with  a few  cautious  applications  of  the 
brake 
c::> ,& . 
Due to  their  sur face characteristics,  ceramic 
brake  rotors*  absorb  mo isture  in such condit ions. 
This can cause a temporary  reduction  in braking 
force  compared  to  dry  brakes. You can compen
sate  for this  by pressing  the  brake  peda l harder. 
Cor rosion 
There  may be a tendency  for  dirt  to  b uild  up on 
the  brake  pads and corros ion to  form  on the  discs 
if  the  car is not  driven  regularly  or  only  for  short 
tr ips with  little  use of  the  brakes. 
If  the  brakes are not  used frequently,  or  if  corro
sion  has formed  on  the  discs,  it  is adv isable  to 
clean  off  the  pads and discs by brak ing firmly  a 
few  t imes from  a moderately  high speed 
c::> ,& . 
Sma rt  Technology 
Faults  in the  brake  system 
If you s hou ld notice  a sudden increase in  br ake 
peda l travel, then  one of  the  two  bra ke circu its 
may have fai led 
c::> ,& . 
Low brake fluid  level 
Malfunctions  ca n occu r in the  brake system  if  the 
brake fluid  level  is  too low . T he brake  flu id  leve l 
is monitored  elect ronically. 
Brake boost er 
The brake  booster  works  w ith  vacuum  pressure 
wh ich is created  only when  the  engine  is  runn ing 
c::> ,& . 
Brake lining  wear  status 
Brake  lining  wear  may be checked by visua l in
spect ion  of  the  cond ition  of  the  brake  pads 
t hr ough  the  openings  in the  wheel.  If  necessary, 
the  wheel  may be removed  for  t his inspection 
c::> page  259,  Replacing  wheels . 
.8_ WARNING 
-New b rake p ads don't  h ave  the bes t stop
p ing  power  an d must  be "broken-in"  during 
the  initial  250  miles  (400  km) . The break-in 
pe riod can be considerably  longer  for 
veh icles with  ceramic  brake  rotors*.  You can 
compensate  for  this  by pressing  the  brake 
pedal  more  firmly.  This also  applies  late r 
when  new  pads are  installed. 
- You shou ld perform  braking  maneuvers  for 
the  purpose  of  cleaning  the  brake  system  only  i f road  co ndit ions pe rmit . Other  road 
users m ust  not  be put  at  r is k  -you  may 
cause an ac cident! 
- Before descending  a steep  g rade, reduce 
speed and sh ift  transmission  into  a lower 
gear  o r lower  dr iving  range.  Do not  r ide the 
b ra kes or  hold  the pe dal down  too  long  or 
too  often.  This cou ld cause the  b rakes to  ge t 
hot  and dimin ish  b raking  effic iency . 
- Do not  " ride  the bra kes"  by rest ing you r foot 
on the  pedal  when  you do  no t  intend  to 
brake.  This may cause the  brakes to  over
heat,  premature  wear  and increased stop
p ing distance. 
193  
Page 196 of 302
Smart  Techn olo gy 
- Under  certain  climatic  and  operating  condi
tions  such  as  passing  through  water,  driving 
in  heavy  rain  or  after  washing  the  vehicle, 
the  effectiveness  of  the  brakes  can  be  re
duced . In  w inter,  ice  can  accumulate  on  the 
brake  pads,  linings,  discs  and  drums . Care
fully  apply  brakes  fo r a  tes t. Brakes  w ill dry 
and  ice  coatings  wi ll be  cleaned  off  after  a 
few  careful  brake  applications . 
- Driving  for  an  extended  pe riod  of  time  on 
salt-covered  roads  witho ut  using  your 
brakes  can  also  affect  bra king  efficiency. 
Clean  off  accumulated  salt  coating  from 
brake  discs  and  pads  with  a few  carefu l 
brake  applications. 
- If you  damage  the  front  spoiler,  or  if you  in
stall  a different  spoiler,  be  sure  the  air  flow 
to  the  front  brakes  is  not  obstructed.  Other
wise  the  brake  system  could  overheat  reduc
ing  the  effectiveness  of  the  entire  brake  sys
tem. 
- Failure  of  one  brake  circuit  will  impair  the 
braking  capability  result ing  in an  increased 
stopp ing  distance.  Avoid driving  the  vehicle 
and  have  it  towed  to  the  nea rest  Aud i dealer 
or  qualified  workshop. 
- Never  let  the  vehicle  roll  to  a  stop  with  the 
engine  shut  off. 
- If  the  brake  booster  is  not  working,  the 
brake  pedal  must  be  pressed  considerably 
harder  to  make  up  for  the  lac k of  booster 
assistance. 
Electromechanical  power 
assist,  dynamic  steering 
The  electromechanical  power  assist  helps  the 
driver  when  steering. 
Power  steering  adapts electronically based  on 
the  vehicle  speed. 
Ind icator  light s and  messages 
•  Stee ring defective!  St op  th e ve hicle 
If  th is  ind icator  light  turns  on  and  stays  on  and 
this  message  appears,  the  power  steer ing  may 
have  fa iled. 
194 
Do not continue  driving.  See  your  authorized 
Audi  dealer  or  other  qualified  repair  facility  for 
ass istance . 
,Ion Steering : System faul t You  can c ontinue 
dri ving 
If  the  indicato r light  turns  on  and  the  message 
appears,  the  steeri ng  may  be  more  diff icult  to 
move  o r more  sensitive  than  usu a l. T he  steer ing 
whee l may  also  be  at  an  angle  when  driving 
straight. 
D rive slowly  to  your  a uth orized  Aud i dea ler  or 
qualified  wo rkshop  to  have  the  malfunct ion  cor
rected. 
1;r,ij D ynamic steering : Init ializing 
If  this  driver  message  appears  and  the  indicator 
light  is flashing  on  the  instrument  panel,  dynam
i c steer ing*  is being  re initialized . After  starting 
the  engine,  t he  steering  wheel  w ill move  slightly. 
Re- initializa tion  might  be  necessary  if the  steer
i ng  whee l was  moved  hard  to  the  left  and  right 
while  the  vehicle  was  not  moving . The  display 
goes  out  as  soon  as  initialization  is comp lete . 
D rive slowly  to  your  a uth orized  Aud i dea ler  or 
qualified  wo rkshop  to  have  the  mal func tion  cor
rected. 
.&_ WARNING 
Have  the  dynamic  steering * system  malfunc
tion  repaired  as  soon  as  possible  by  an  au
thorized  Audi  dealer  or  qualif ied  workshop  -
risk  of  acc ident! 
(D Tips 
If  the . or ,Ion indicator  light  only  stays  on 
for  a  short  time,  you  may  continue  driving. 
- The  dynamic  steering*  stabi lity  systems  are 
not  ava ilable  in the  event  of  a  system  mal
function. 
- For  additiona l information  on  dynamic 
steering *,  refer  to~ 
page  106 .  
Page 197 of 302
Driving  with  your 
quattro 
With All  Wh eel Drive , all four  wh eels are driven . 
General  information 
With  All W heel  Drive,  power  is dis tribute d to  all 
four  wheels . This  happens  automatically  depend
ing  on  your  dr iving  style  and  the  road  conditions 
at  the  time . See  also¢ 
page  190 . With  the  sport 
d ifferent ial*,  power  d istr ibution  to  the  rear 
wheels  is variable  and  can  be  adjusted  with  Audi 
d rive select* 
¢ page  106. Always  read  and  fo llow 
safety  preca utio ns ¢ ,&. . 
Winter  tires 
When  drivi ng  in the  w inter,  you r vehicle  with  All 
Wheel  Drive has  an  advantage,  even  with  reg ular 
tires.  In  winter  road  cond itions  it  may  be  adv isa
b le  to  mount  w inte r tir es  (or  a ll-season  tires)  for 
i mproved  d riveab ility  and  bra king : these  tires 
must  be  mounted  on 
all four wheels . See  also 
¢ page  251,  W inter  tires. 
Snow  chains 
Where  snow  chains  are  mandatory  on  certain 
roads,  this  normally  also  a pplies  to  vehicles  w it h 
All Whee l Dr ive ¢ 
page  251,  Snow  chains. 
Replacing  wheels /tires 
Veh icles  w ith  All Wheel  Drive must  always  have 
tires  of  the  same  s ize. A lso  avo id tires  wi th d iffer
ent  tread  depths.  For detai ls see  page 
¢ page  243. 
Off-Road  driving? 
Your Aud i does  not  have  e nough  g round  clear
a nce  to  be  used  as  an  off-road  vehicle . It  is there
fore  best  to  avoid  rough  tracks  and  uneve n ter
r ain  as  m uch  as  possible . Also  refe r to 
¢page  197. 
_& WARNING ,~ -
Always  adjust  you r driv ing  to  road  and  t raffic 
conditions .  Do  not  let  the  extra  safety  affo rd
ed  by All Wheel  Drive tempt  you  into  taking 
extra  risks. 
Sma rt  Technology 
- Although  the  A ll Whee l Drive  is very  effec
tive,  always  remember  that  braking  capacity 
is limited  by t ire  tract ion.  You shou ld  there
fore  not  dr ive  at  excessive  speeds  on  icy or 
slippe ry road  surfaces . 
- On wet  road  surfaces,  be  careful  not  to  dr ive 
too  fast  because  the  front  wheels  could  be
g in to  slide  on  top  of  the  water  (aquap la n
ing) . If  th is  should  oc cur,  you  will  have  no 
warn ing  from  a  sudden  increase  in engine 
speed  as with  a front-wheel  d rive vehicle. 
Always  d rive at  speeds  which  are  suited  to 
the  road  conditions  -risk  of  c rash. 
Energy  management 
Starting  ability  is optimized 
Energy management  controls  the  distribution  of 
electrical  energy  and  thus  op timizes  the  availa
bility of  electrical  energy for starting  the  engine . 
If  a vehicle  with  a  conventional energy  system  is 
not  driven  for  a  long  pe riod  of  time,  the  battery  is 
discharged  by  id ling  curre nt  consumers  (e.g.  im
mobilize r) . In  certain  circumstances  i t can  resu lt 
in t he re  being  i nsufficien t energy  ava ilable  to 
sta rt the  engine. 
Intelligent  energy  manageme nt  in you r vehicle 
hand les  the  distribution  of  electrical  energy . 
Start ing  ability  is markedly  improved  and  the  life 
of  the  ba ttery  is  ex tended. 
Bas ica lly,  energy  management  cons ists  of 
bat 
tery diagnosis , idling current management 
and 
dynamic energy management . 
Battery  diagnosis 
Battery  d iagnosis  continuously  dete rm ines  the 
state  of  the  battery.  Sensors  determine  battery 
vo ltage,  battery  current  and  battery  tempera
tu re.  This  de termines  the  current  state  o f ch arge 
and  the  power  of  the  battery . 
Idling  current  management 
Idling  current  management  reduces  energy  con
sumption  while  the  vehicle  is standing.  With  the  ..,_ 
195  
Page 198 of 302
Smart  Technology 
ignition  switched  off,  it controls  the  energy  sup
p ly to the  various  electrical  components.  Data 
from  battery  diagnosis  is considered. 
Depending  on the battery's  state  of charge, indi
vidual consumers  are  gradually  turned off to pre 
vent  excessive discharge  of the  battery  and  thus  maintain  starting  capability. 
Dynamic  energy management 
While the  vehicle is being driven,  dynamic  energy 
management  distributes the  energy  generated 
according  to  the  needs  of  the  individual compo
nents. 
It regu lates  consumption,  so that  more 
electrical  energy  is not  being  used  than  is being 
generated  and  ensures  an optimal  state  of 
charge  for the  battery. 
(D Tips 
- But even  energy  management  cannot  neg
ate  the  limits of physics . Cons ider  that  the 
power  and  life of a  battery are  limited. 
- If starting  ability  is threatened,  the  indica
tor  light (•) appears 
9 page  15, Cl Battery. 
What  you  should know 
The highest  priority  is given  to  maintaining  start
ing  capability . 
The battery  is severely taxed  in short-distance 
driving,  in city traffic  and  during the  cold time  of 
year.  Abundant  electrical  energy  is  required, but 
only a little  is generated . It  is also crit ica l if the 
engine  is  not  running  and  electrical  components 
are  turned  on . In this  instance  energy  is be ing 
consumed  but  none  is being  generated . 
It  is in precisely these  situations  that  you will no
tice energy  management  actively regulat ing the 
d istr ibut ion of energy . 
Vehicle stands for  an extended  period 
If you do not  driv e your vehicle over a period  of 
several  days or weeks,  electrical  components  are 
gradually  cut  back or switched  off. This reduces 
energy  consumption  and  ma inta ins starting  ca
pability over a longer  period . Some  of  the con
ven ience funct ions  may  not operate,  such  as the 
interior  l ights  or  the power seat  adjustment.  The 
196 
convenience  functions  will be availab le  again 
when you switch on the  ignition and  start  the  en gine. 
With  the  engine turned  off 
If you  listen  to  the radio, for  example,  with  the 
engine  turned  off or  use other  MMI funct ions, 
the  battery  is being  d ischarged . 
If starting  capab ility is  jeopardized  due  to  energy 
consumption,  a  message appears  in the  MMI dis
play . 
The message  indicates that  the  system  will be 
switched  off automat ically in a moment . If you 
wish to  cont inue  using  the  functions,  you have to 
start  the engine. 
With  the  engine  running 
Although  electrica l energy  is generated  when  the 
vehicle  is being  driven, the  battery  can become 
discharged.  This  happens mostly when  little  en
ergy is being  generated  and  a great  deal  con 
sumed  and  the battery's  state  of charge  is not 
opt imal. 
To bring  the energy  balance  back into  equilibr i
um,  consumers  wh ich require  espec ially large 
amounts  of  energy are temporarily  cut  back or 
switched  off.  Heating systems  in  particular  re
quire a  great  dea l of  energy.  If you notice , fo r ex
amp le,  that  the  heated seats*  or the  heated  rear 
window are  not  heating,  they have  been  tempo
rarily  cut back  or switched  off.  These systems  will 
be available  aga in as soon  as the  energy  balance 
has  been  restored. 
You  will  also  notice  that engine  idle speed  has 
been  increased  slig htly.  This  is norma l and  not  a 
cause  for concern . By  increasing  engine  idle 
speed  the  additional  energy  required  is generat
ed and  the  battery  is charged.  
Page 199 of 302
Driving  and  the 
environment 
Breaking  in 
New  eng ine 
The engine  needs  to  be  run-in  during  the  first 
1,000  miles  (1 ,500  km). 
For the  first  600  miles  (1 ,000  kilometers): 
"' Do  not  use full  throttle . 
"' Do  not  drive  at  engine  speeds that  are more 
than  2/3  of  the  max imum  permitted  RPM . 
"' Avoid  high  eng ine speeds. 
From 600  to  1 ,000  miles  (1,000  to  1,500 
kilometers ): 
"' Speeds  can gradually be increased to  the  maxi
mum  pe rm issib le road or  e ngine  speed. 
During  and after  b reak-in  period 
"'  Do not  rev the  engine  up to  high  speeds when  it 
is cold . This applies  whether  the  transmission  is 
in  N (Neutral)  or  in gear . 
After  the  bre ak-in  period 
"'  Do not  exceed maximum  engine  speed under 
any  circumstances . 
"' Upshift  into  the  nex t higher  gear 
before reach
ing the  red area at  the  end of  the  tachometer 
sca le 
c:::;, page  10. 
During  the  first  few hours  of  driving , the eng ine's 
internal  friction  is higher  than  later  when  all  the 
mov ing  parts  have been broke n in.  How well  this 
b reak-in  process  is done  depends  to  a considera
b le exte nt  o n the  way the  veh icle  is d rive n du ring 
the  first  1,0 00  miles  (1,500  kilome ters). 
(D Note 
E xtremely  high  eng ine speeds a re au toma ti
cally  reduced.  However,  t hese  rpm  li mits  are 
p rogr amme d fo r an  eng ine well  run-in,  not  a 
new engine . 
Driving  and  the  envir onment 
{® For the  sake of  the  environment 
Do not  drive  with  unnecessarily  high  engine 
spe eds  -upshifting  early  saves fuel,  red uces 
no ise and  protects  the  environment. 
New tires 
If  your  vehicle  is runni ng on  new tires,  drive  par
t icularly  careful  for  the  first  3S0  m iles (500  kilo 
meters)  after  fitting . 
_&. WARNING 
New tires  tend  to be slippe ry and  mus t also 
b e "bro ken- in".  Be sure to  remembe r th is dur
i ng the  first  350  m iles ( 500  k ilome ters). 
Brake gent ly . Avoid  following  closely  behin d 
other  vehicles  or  other  s ituations  that  might 
require  sudden,  hard  braking. 
Avoid  damaging  the 
vehicle 
When  you are dr iv ing  on  poor  roads,  or  over 
curbs,  steep  ramps,  etc.,  make  certai n that  low 
ly ing  parts  such as spo ile rs and  exhaust  system 
parts  do  not  bottom  o ut  and get  damaged . 
This is espec ially  true  for  veh icles with  low-s lung 
chass is (sports  c hass is)*  and fully  loaded 
vehicles . 
Catalytic  converter 
Applies  to:  vehicles with  gasoline  engine 
It  is very important  that  your  emission  control 
system  (catalytic  converter)  is functioning  prop 
erly  to  ensure  that  y our vehicle  is running  in an 
environmen tally  sound  manner. 
"'  Always use lead-free  gasoline c:::;,  page  212, 
F uel  supply . 
"' Never  run t he tank  down  all  the  way  to emp ty. 
"' Never  put  too  much  motor  o il in yo ur engine 
c:::;, page  225,  Adding  engine  oil ce:r.. 
"' Never try  to  push- or tow-start  your  vehicle. 
T he ca talytic  co nverter  is an efficient  "cle an-up" 
device built  into  the  exhaust  sys tem o f th e vehi -
-
cle. The catalytic  converter  b urns many  of  the  .,. 
197  
Page 200 of 302
Driving  and  th e en vironm ent 
pollutants  in  the  exha ust  gas  before  they  are  re 
leased  into  the  atmosphere. 
The exclusive  use  of  unleaded  fue l is critica lly im
portant  for  the  l ife  of  the  catalytic  converter  and 
proper  functioning  of the  engine. 
A WARNING 
T he  temperature  of the  exha ust  system  is 
high,  both  when  driving  and  after  stopping 
the  engine. 
-
- Never  touch  the  exhaust  tail  pipes  once  they 
have  become  hot.  This  could  result  in  burns. 
- Do not  park  or  operate  the  vehicle  in areas 
where  the  hot  exha ust  system  may  come  in 
contact  with  dry  grass,  brush,  fue l spill  or 
other  mater ial  which  can  cause  a fire. 
- Do not  apply  additional  undercoating  or  rustproofing  on  or  near  the  exhaust  mani
fold,  exhaust  p ipes,  catalytic  converter  or 
heat  sh ields.  During  dr iv ing,  the  substance 
used  fo r undercoating  could  overheat  and 
ca use  a fire. 
(D Note 
- Be aware  that  just  one  tank  filling  with 
le aded fuel  will already  ser iously  degrade 
the  performance  of the  catalytic  co nverter . 
- Do not  exceed  the  correct  eng ine  oil  level 
<=;> page 225. 
-Do not  drive  until  the  fuel  tank  becomes 
complete ly empty.  The  engine  could  mis
fire.  Unburned  fuel  could  also  get  into  the 
exhaust  system  and  this  cou ld  cause  the 
cataly tic converte r to  overheat. 
- Do not  sw itch  off  the  ignition  while  the  veh i
cle  is  moving. 
- Do not  continue  to  operate  your  vehicle  un
der  these  cond it ions,  as  otherwise  fue l can 
r each  the  catalyti c converte r. This  cou ld  re
su lt  in overheating  of the  conve rter,  req uir
i ng  its  replacement. 
- T o assure  efficient  oper ation  of the  Emis
s ion  Control  Sys tem: 
- Have your  veh icle  maintained  properly  and 
in  accordance  with  the  service  recommen
dations  in your  Warranty 
& Maintenance 
book let . 
198 
-Lack  of  proper  ma intenance  as  well  as  im 
proper  use  of the  vehicle  wi ll impair  the 
funct ion  o f the  emission  control  system 
and  could  lead  to  damage. 
@ For the  sake of  the  environment 
Even when  the  Emiss ion  Control  System  is op 
erating  properly,  the  exhaust  gas  can  have  a 
su lfu r-li ke exhaust  gas  sme ll under  some  op
erating  states.  Th is  depends  on  the  sulfur 
content  of  the  fuel  being  used.  Us ing  a  d iffer
ent  brand  of fuel  may  help,  or  fi lling  the  tank 
with  lead-free  super  g rade  gasoline. 
Diesel  particulate  filter 
App lies to:  vehicles  with  diese l engine 
The  diesel  particulate  filter  filters  nearly  all  of 
the  soot  part icles  out  of the  exhaus t. The filte r 
clea ns  itself  automat ica lly unde r no rma l dr iv ing 
cond it ions.  If  the  fil ter  canno t clean  i tself  (fo r ex
amp le,  because  yo u are on ly driving  short  distan
ces),  the  filter  becomes  clogged  with  soot  and 
the 
II symbol  for  the  diese l particu late  filter  il
l uminates 
¢ page 20. 
A WARNING 
- Do not  park  your  vehicle  over  flammable 
materials  such  as  grass  or  leaves  because 
the  high  temperature  of the  diesel  particu
la te filte r could  sta rt  a fi re. 
-
- Do not  apply  an  underbody  protectant  in the 
exhaust  system  area  or  a fire  could  start. 
Shutting  down  vehicle 
If  you  would  like your  vehicle  to  remain  inopera
tive  for  a  longer  period  of time,  contact  an  Audi 
or  other  spec ia lized  dealer . They can  adv ise  you 
o n  necessary  p recautions  e .g.  corros ion  preven
tion,  ma intenance  and  storage . Pay attention  to 
additional  informat ion  concer ning  t he  battery. 
Refer  to 
<::;> page 2 31.