Page 193 of 294

M N <( (.J 
'SI: ,...., \!) 1.1'1 
N \!) ,...., 
Corro sion 
There may be a tendency  fo r dirt  to  bui ld up on 
the  brake pads and  corrosion  to  fo rm  on the  discs 
if  the  car is not  driven  regularly  or  only for  short 
trips  with  little  use of  the  brakes. 
If the  b rakes are not  used frequently,  or  if  corro
sion  has formed  on the  discs, it  is advisab le to 
clean 
off the  pads and discs by braking  firmly  a 
few  times  from  a moderately  high  speed 
c=> .&, . 
Faults  in the  brake  sy stem 
If you should  not ice a sudden increase in  brake 
pedal travel,  then one of  the two  brake circuits 
may have fai led 
c=> .&, . 
Low brake flu id level 
Malfunct ions can occur in the  brake system  if  the 
brake fluid  level  is too  low.  The brake flu id  leve l is 
monitored  e lectronically. 
Br ake boo ste r 
The brake booster  works  w ith  vacuum  pressure 
which  is created  only  when  the  engine  is running 
~ ,& . 
Brake lining  wear  sta tu s 
Brake lining  wear  may be checked by visual  in
spection  of  the  condition  of  the  brake pads 
through  the  openings  in the  wheel.  If  necessary, 
the  wheel  may be removed for  this  inspection 
c=> page  2 55,  Replacing  wheels. 
.8, WARNING -
- New brake pads don't  have the  best  stop
ping  power  and must  be "broken-in"  during 
the  initial  250  mi les ( 400  km) . You can com
pensate for  this  by pressing the  brake peda l 
more  firmly.  This a lso applies  later  when 
new  pads are installed. 
- You should  perform  braking  maneuvers for 
the  purpose  of  clean ing the  brake system 
only  if  road conditions  perm it.  Other  road 
users must  not  be put  at  risk  -you  may 
cause an accident! 
- Before  descending  a steep grade,  reduce 
speed and shift  transmiss ion  into  a lower 
gear or  lower  driving  range.  Do not  ride the 
In te llig ent  T echnolog y 
brakes or  hold  the  peda l down  too  long  o r 
too  often.  This could  cause the  brakes to  get 
hot  and  dimin ish braking  effic iency. 
- Do not  "ride  the  brakes"  by rest ing your  foot 
on the  pedal when you do not  intend  to 
brake. This  may cause the  brakes to  over
heat,  premature  wear  and  increased stop
ping  distance . 
- Under certain  cl imatic  and operat ing condi
tions  such as passing through  water , dr iv ing 
in heavy rain  or  afte r washing  the  veh icle, 
the  effect iveness of  the  brakes can be re 
duced.  In  winter,  ice c an accumulate  on the 
b rake pads, lin ings, discs and  drums.  Care
fu lly apply  brakes for  a test . Brakes will  dry 
and  ice coatings  will  be cleaned 
off after  a 
few  ca reful  brake app lications. 
- Driving  for  an extended  period  of  t ime on 
salt-covered  roads without  using your 
brakes can a lso affect  braking  efficiency. 
Clean 
off accumulated  salt  coating  from 
brake discs and  pads with  a few  careful 
brake applications. 
- If  you damage the  front  spoiler,  or  if you  in
stall  a different  spoiler,  be su re the  air f low 
to  the  front  brakes is not  obstructed . Other
wise  the  brake system  could  overheat  reduc ing the  effect iveness of  the  entire  brake sys
tem. 
- Fai lure of  one brake circuit  will  impa ir th e 
b rak ing capability  res ulting  in  an increased 
s topping  distance.  Avoid driving  the  vehicle 
a nd  have it  towed  to  the  nearest Aud i dea ler 
or  qualified  workshop . 
- Never let  the  vehi cle roll  to  a s top with  the 
engine  shut 
off . 
- If  the  b rake booste r is no t working,  the 
b rake peda l must  be pressed cons iderably 
harder  to  make up for  the  lack of  booster  as
sistance. 
191  
         
        
        
     
        
        Page 194 of 294

Intelligent Technology 
Electromechanical 
steering,  dynamic 
steering 
The electromechanical  steering  supports  the 
driver's  steering  movements . 
Powe r stee ring  adapts electroni cally based o n 
the  vehicle  speed. 
Indicator  lights  and  messages 
•  Do not  dr ive v ehicle: steering d efecti ve 
If  th is ind icator  light  turns  on and stays on  and 
this  message appears,  the  power  steering  may  have fa iled. 
Stop  the  vehicle  in a safe  locatio n as soon as pos 
sib le. Do 
not continue  driving.  See an author iz ed 
Aud i dealer  or authori zed Aud i Service Facility  for 
assistance. 
,Ton Steering:  Sy stem  fault  You  can continue 
driving 
If  the  indicator  lig ht  t urns on and the  message 
appears, t he steering  may be more  diffic ult  to 
move or  more  sensitive  than  usual.  The steering 
wheel  may a lso be at  an ang le when  dr iv ing 
straight. 
D rive s low ly to  your  authorized  A udi  dealer  or 
qualified  wor kshop  to  have the  malfunction  cor
rected. 
,Ton Dynamic  steering:  Initializing 
If  the  indi cator  lig ht  ls  b linki ng and th is message 
appears,  dynam ic s teeri ng*  is being  ini tialized. 
Once you st art  the  eng ine a fter this  is finished, 
the  steering  wheel  will  be easy  to move . Re -initi 
alization  might  be necessary if  the  steering  whee l 
was moved  hard to  the  left  and  right  wh ile the 
veh icle was  not  moving . The display  turns  off  if 
the  initiali zation  was successfu l. 
(D Tips 
-If  th e .  or ,Ton indicator  light  only  stays on 
for  a short  time,  you  may continue  driving. 
- The dynamic  steering  sta bility  systems 
r=> page  188 are not  ava ila ble  in the  event  of 
a system  ma lf u nction. 
192 
- For add itiona l information  on  dynamic 
steerin g,  refer  to 
r=> page  101. 
All  wheel  drive  (quattro) 
App lies  to vehicles : with  all  wheel  drive 
In  all  wheel  drive,  all  four  wheels  are powered . 
General  information 
In  all  whee l dr ive,  the dr iv ing  power  is divide d be
tween  all  four  whee ls.  Th is happens  automat ic al
l y depending  on yo ur driv ing  behavior  as well  as 
the  cur rent  roa d conditions . Refer  to r=> 
page  188, 
Electronic  Stabilization  Control  (ESC). 
A cente r d iff eren tial  distribu tes the  d riving  power 
variably  to the  fron t and  rear ax le . I t  works  to 
gether  w it h  select ive whee l torq ue control,  which 
activates  when  driving  throug h curves 
<=> page  189. With  the  sport  differential*,  power 
distribution  to  the  rear wheels  is variable  a nd can 
be adjusted  with  drive  select<=> 
page  101 . 
The all  whee l drive  concept  is designed  for  high 
engine  power . Yo ur vehicle  is exceptionally  pow 
erfu l and  has excellent  driving  characterist ics 
bot h under  normal  driving  conditions  and on 
snow  and  ice . Always read a nd follow  safety  pre
ca utions 
<=> ,& . 
Winter  tires 
By using  all  whee l dr ive, your  ve hicle has good 
forward  motion  with  sta ndard t ires  in winter  con
dit ions . However,  in winter  we  recommend  usi ng 
winter  or  all  seaso n tires  on a ll fou r wheels,  be
cause this  will  improve  the  braking  eff ect. 
Snow  chains 
If  there  are snow  chain  laws,  snow  chai ns m ust 
also  be used o n ve hicles with  all  wheel  drive 
r=> page  248 , Snow  chains . 
Replacing  tires 
For vehicles  with  a ll wheel  drive,  o nly wheels  with 
the  same  rolling  circum ference should  be  used. 
Avoid w heels with  d ifferent  tread  dept hs 
<=>  page  240,  New  tires  or  wheels.  ..,.  
         
        
        
     
        
        Page 195 of 294

M N <( I.J "". rl I.O 
"' N I.O rl 
Offroad vehicle? 
Your Aud i is not  an  off road  vehicle  -there  is not 
enough  ground  clea rance .  For  this  reason,  avo id 
difficu lt  terrain . 
A WARNING 
-Also,  in vehicles  with  all  whee l dr ive,  adapt 
your  dr iving style  to  the  current  road  and 
traffic  conditions.  Do not  let  the  increased 
safety  provided  tempt  you  into  taking  risks,  because  t his  increases  the  risk of  an  acci 
dent . 
- The  brak ing  ability  of yo ur vehicle  is  lim ited 
to  the  traction  of the  wheels . In  this  way,  it 
is not  different  from  a two  wh eel  drive veh i
cl e.  Do not  be  tempted  to  ac celerate  to  a 
high  speed  when  t he  ro ad  is s lippery  th is  in
cr eases  the  r is k  of  an  accident . 
- Note  t hat  on  wet  streets,  t he front  w heels 
c an  "hyd rop lane"  if d riving  at speeds  that 
are  too  high.  Unli ke front  whee l drive 
vehicles,  the  engi ne  does  not  rev higher  sud 
den ly when  the  vehicle  begins  hydrop laning. 
For this  reaso n,  pay  attent ion  to  the  r oad 
condit ions  regardless  of your  speed  to  re
duce  t he  risk of an  accident . 
Rear  spoiler 
The extendable  rear  spoiler  increases  driving  sta
bility. 
Fi g.  179 Cente r con sole : re ar  s poil e r b utto n 
The  rear  spoiler  retrac ts and  extends.  Var ious  op
erat ing  modes  (automatic  or  manual  mode)  can 
be  activated . 
Intelligent  Technology 
Automatic  mode  (normal  operation) 
-Au tomatic  deployment : At a s peed  of  about  80 
mph  (130  km/h) , the  rear  spo ile r  deploys  auto 
matically . 
- Au tomatic  retra ction:  When  speed  drops  below 
abou t SO mph  (80  km/h),  the  rea r spoi ler  re 
tracts  automatically. 
Manual  mode 
- Man ual  deployment:  Tapp ing  br iefly  on  the 
sw itch ~ 
fig.  179 deploys  the  rea r spo ile r. 
- Manual  retraction : At speeds  up to  about 
10  mph  ( 20  km/h),  re tract  the  rear  spoiler  by 
pressi ng  and  hold ing  t he sw itch.  At speeds  be
tween  10  mph  (20  km/h)  and  80  mph  ( 130 
km/h),  retract  the  rear  spoi ler  by tapping  on 
the  switch. 
Indicator  lights 
rJ  /. Rear spoiler : S ys tem  fault 
The  rea r spoi le r  may  not  have  exte nded  due  to  a 
malfunction . Th is could  change  the  vehicle's  driv
i ng  charac teristics  at  high  speeds . Do not  exceed 
8 5  mp h (140  km/h).  Dr ive to  you r authorized 
A udi dealer  immed iate ly  to  have  the  malfu nction 
corrected.  The  color  of the  indicator  light  de 
pends  on  the  vehicle  speed . 
A WARNING 
-
Driving at higher  speeds  witho ut  the  rear 
spoi ler  deployed  ca n impair  handling  charac
terist ics,  making  the  vehicle  harder  to  control. 
- Always  make  sure  that  the  spo iler  is de-
p loyed  w hen  d riving at  speeds  over  85  mph 
(140  km/h).  If the  rea r spo ile r warning/ind i
cato r light  i n the  instrument  cluster  comes 
on,  the  rear  spoile r may  not  have  deploye d. 
- Never  drive  at  speeds  h igher  than  85  mph 
(140  km/h)  if the  spo iler  is not  deployed. 
Have the  spoiler  i nspected  as  soon  as  possi
b le  by an  au tho riz e d  Aud i deale r o r q ualified 
w orkshop. 
- Always  obey  speed  li mits  and  othe r traff ic 
laws. 
193  
         
        
        
     
        
        Page 196 of 294

Intelligent Technology 
& WARNING 
Improp er operat ion  of  the  rear  spoiler  can 
cause  crushing  injuries. 
- Always  make  sure  that  nobody,  espec ially 
children , is  in the  way when  the  rea r spo ile r 
i s deployed  or  retracted. 
@ Note 
- Neve r push  on  the  vehicle  on  the  rear  spoi l
er.  Th is  co uld  cause  damage . 
- To prevent  damage  to  the  rear  spoiler  do 
not  lean  or  p lace  anyth ing  on  it. 
- Only ope rate  the  rear  spoi ler  manually  when 
the  luggage  compartment  lid is close  and 
the  rear  spo iler  moving  parts  are  not 
blocked . Ot herwise,  damage  could  occur. 
(D Tips 
Clean  the  rear  spoiler  compartment  every  2  to 
3  mont hs. To function  correct ly, the  rear 
sp oiler  must  be  free  of  ice,  sn ow  and  leav es. 
Energy  management 
The  starting  ability  is optimized 
The energy  management  system  manages  the 
ele ctrical energy distribu tion and  op timi zes  the 
availability of  elec trical energy for starting  the 
engine . 
Whe n  a  ve hicle wit h  a  co nven tional  e nergy  sys 
tem  is  not  dr iven  for  a  long  time,  the  ba tte ry is 
d rained  by equipmen t (fo r example  the  immobil 
izer).  In  certa in circ umstances,  there  cou ld  may 
not  be eno ugh  energy  to  start  the  engine . 
Your veh icle  i s equ ipped  w ith  an intellige nt  ener 
gy managemen t system  for  distr ibuting  electr ic i
ty . Th is significantly  improves  the  starti ng  ability 
a nd  increases  the  battery  life . 
T he  energy  m anagemen t sys tem  Is  made  up of 
battery  diagno sis, idling  current management 
and dynamic energy management. 
Battery  diagnosis 
T he  batte ry diagnos is  determines  the  ba tte ry 
ch arge  leve l. The  sen sors  de te ct  the  ba tte ry,  the 
194 
batte ry current,  an d  the  batte ry tempera ture. 
The  c urrent  charge  leve l and  the  perfo rmance  of 
t h e  battery  are  determined  based  on  th is. 
Idling  current  management 
The  idling  cur ren t management  decr eases  the 
energy  used  wh ile  pa rke d.  Wi th the  eng ine 
switched  off,  it  manages  the  energy  dis trib ution 
to  t he d ifferent  e lectr ica l components . Date  from 
battery  diagnos is  is ta ken  into  acco unt  for  this . 
Depend ing  on  the  batte ry charge  leve l,  elec trical 
equipmen t  is  switched  off  one  item  afte r th e  o th 
e r,  to  prevent  the  battery  from  dra ining  and  to 
r etain  the  starting  ability. 
Dynamic  energy  management 
While  driv ing , d ynam ic ene rgy  man agement  dis 
t ribu tes  the  ap propri ate  amount  of energy  to  the 
e lectrica l equ ipment.  It  controls  the  battery 
c h arge  level  so  t hat  more  ene rgy  is  not  use d then 
i s  be ing  generated  in order  to  maintain  an  opti
mal  battery  charge  level. 
(D Tips 
- Energy  management  can not  overcome  the 
laws  of  p hys ics.  Note  that  the  charge  level 
and  length  of the  battery  life  a re  limited. 
- W he n the  sta rting  ability  is endange red,  the 
(•j indicator  light  t urns  on¢ page  16 . 
What  you  should  know 
Maintaining  the  starting  ability is the  highest 
priority . 
A lot  of  st ress  is placed  on  the  ba ttery  when  dr iv 
i ng  sho rt  distances,  in t raff ic, and  at  cold  t imes 
of  the  year . A  lot  of  ene rgy is used  but  little  is 
generated . 
It is also  critical  when  the  engine  is 
not  ru nning  but  e lectr ica l equipment  is sw itched 
o n.  In  th is  case,  energy  is  used  but  none  is gener 
ated. 
In  sit uat ions  like this,  energy  ma nagement  w ill 
active ly regu lated  the  distribution  of energy. 
Long periods  without  use 
If you  do  not  drive yo ur vehicle  for  several  days  or 
weeks,  e lectr ica l equipment  is grad ually scaled  ..,.  
         
        
        
     
        
        Page 197 of 294

M N <( (.J 
'SI: ,...., \!) ..,., 
N \!) ,...., 
back  or  switched  off. This  reduces energy  use  and 
ensures  the  vehicle  will  be able  to  start  after  long 
periods  of  time . Some  convenience  functions, 
such  as  interior  lighting  or  power  seat  adjust ment,  may  not be  available  under  certa in circum
stances . These  convenience  functions  will  be 
available  aga in once  you  switch  the  ignition  on 
and  start  the engine. 
With  the  engine  switched off 
The  battery  will  drain  if you  use functions  such  as 
listening  to  the  rad io while  the  engine  is switched 
off. 
The vehicle's  ability  to  start  may  be  impaired by 
the  energy  use,  a  message  w ill appear  in the  In
fotainment  system  d isp lay. 
The  message  indicates  that  the  system  will 
switch  off  automatically  soon.  If you  would  like 
to  continue  using  the  funct ions,  you  must  start 
the  eng ine. 
With  the  engine  running 
Although  electrical  energy  is generated  whi le 
driving,  the  battery can  drain.  This can happen 
when  little  energy  is generated,  and  much  is  used 
and  the  charge  level  of the  battery  is not  optimal. 
To restore  the  balance  of  energy,  components 
that  require  large  amounts  of energy  are  tempo
rarily  sca led  back  or  switched  off . Heating  sys
tems  in  particu lar  require  a  great  deal  of  energy . 
If  you  notice,  for  example,  that  the  seat  heating* 
or  rear  window  defroster  is  not working,  then  it 
has  been  tempo rar ily reduced  or  sw itched  off . 
These  systems  are  available again as  soon  as  the 
ene rgy  balance  has  been  restored. 
In  addition,  you  may notice  that  the  idle  speed 
h as  slightly  increased . That  is  normal  and  no 
cause  for  concern.  Due  to  the increased  idling 
speed , the  additional  required  energy  w ill be  gen 
e rat ed  and  the  battery  will  be  charged. 
Intelligent  Technology 
195  
         
        
        
     
        
        Page 198 of 294

Driving  and  the environment 
Driving  and  the 
environment 
Breaking  in 
New engine 
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  maximum  permitted  RPM . 
.,.  Avoid  high  engine  speeds. 
From 600  to  1,000  miles  (1,000  to 1,500 
kilometers ): 
.,.  Speeds can gradually be  increased to  the  maxi
mum  perm issible  road or  eng ine speed. 
During  and  after break-in  period 
.,. Do not  rev the  engine  up to  high speeds when  it 
is cold . This applies  whether  the  transmission  is 
i n N (Neutral)  or  in  gear . 
After  the  break-in  period 
.,. Do not  exceed maximum  engine  speed  under 
any circumstances. 
.,.  Upshift  into  the  next  higher  gear 
before reach
i ng the  red area at  the  end  of  the  tachometer 
scale~ 
page  10 . 
During  the  first  few  hours  of  driving,  the  engine's 
internal  friction  is higher  than  later  when  all  the 
mov ing  parts  have been broken  in.  How well  th is 
break-in  process is done  depends  to a cons idera
b le extent  on the  way the  vehicle  is  driven  during 
the  first  1,000 miles  (1,500  kilometers). 
(D Note 
Extremely  high  engine  speeds  are automati
cally  reduced.  However,  these  rpm limits  are 
programmed  for  an engine  wel l run-in,  not  a 
new engine. 
196 
® For the  sake of the  environment 
Do not  drive  with  unnecessarily high  engine 
speeds  -upshifting  early  saves fuel,  reduces 
noise and  protects  the  environment. 
New tires 
If  your  vehicle  is running  on  new tires,  drive  par
ticularly  careful  for  the first  350  miles  (500  kilo 
meters)  after  f itting  . 
.8, WARNING 
New  tires  tend  to  be slippery  and  must  also 
be "broken- in".  Be  sure  to remember  this  dur
ing the  first  350  mi les (500  kilometers). 
Brake gently.  Avoid  following  closely  behind 
other  ve hicles or  other  situations  that  might 
require  sudden,  hard  braking. 
Avoid  damaging  the 
vehicle 
When  you are driving  on  poor  roads,  or  over 
curbs,  steep  ramps,  etc ., make  certain  that  low
lying  parts  such as spoilers  and exhaust  system 
parts  do  not  bottom out  and get  damaged . 
This is especially  true  for  vehicles  with  low-slung  chass is (sports  chassis)*  and fully  loaded 
vehicles . 
-
Driving  through  water  on 
roads 
Note  the  following  to  avoid vehicle damage  whe n 
driving  through  water, for example  on  flooded 
roads: 
- The water  must  not  be any highe r than  the  bot
tom  of  the  vehicle  body. 
- Do not  dr ive faster  than  walk ing  speed . 
.8, WARNING 
After  driv ing through  water  or  mud,  the  brak
ing effect  can be reduced due to  moisture  on 
the  brake  discs  and brake pads. A few  careful 
brake  applications  shou ld dry  off  the  brakes.  
         
        
        
     
        
        Page 199 of 294

M N <( (.J 
'SI: ,...., \!) 1.1"1 
N \!) ,...., 
CD Note 
-Vehicle  components  such  as  the  engine , 
transmission,  suspension  or  e lectr ical  sys
tem  can  be  severe ly damaged  by driving 
through  water . 
- Always switch  the  Start-Stop -System*  off 
when  driving  through  water 
c> page  80. 
@ T ips 
- Determine  the  depth  before  driving  through 
water. 
- Do not  stop  the  vehicle,  drive  in  reverse  or 
switch  the  eng ine  off  when  driving  through 
water. 
- Keep  in  mind  that  oncoming  vehicles  may 
create  waves  that  raise  the  water  level  and 
make  it too  deep  for  your  vehicle  to  drive 
through  safely. 
- Avoid driving  through  sa lt  water  (corrosion). 
Catalytic  converter 
Applies  to vehicles:  with  gasoline  engine 
It  is very impor tan t  tha t your  emission  control 
system  (catalyti c converter)  is functioning  prop
erly  to ensure  that  your  vehicle is running  in  an 
environmentally  sound  manner . 
... Always  use  lead-free  gasoline c> page  210, 
F uel supply . 
... Never  run  the  tank  down  all  the  way to  empty . 
.,.  Never  put  too  much  motor  oil  in your  engine 
c> page  222,  Adding  engine  oil~-
.,. Never  try  to  push- or tow-start  your  veh icle. 
The catalytic  converter  is an  eff icient  "clean-up" 
dev ice  bu ilt  into  the  exhaust  system  of  the  vehi
cle . T he  catalytic  converter  burns  many  of  the 
pollutants  in the  exhaust  gas  before  they  are  re
l eased  into  the  atmosphere. 
The  exclusive  use  of  unleaded  fuel  is cr itically  im 
portant  for  the  life  of the  catalyt ic converte r and 
proper  functioning  o f the  eng ine . 
A WARNING 
The  temperature  o f the  exhaust  system  is 
high,  both  when  driving  and  after  stopping 
the  engine . 
Driving  and  th e  en vir onm ent 
- Never  touch  the  exhaust  tail  pipes  once  they 
have  become  hot.  Th is  could  resu lt  in  burns. 
- Do not  park  or  operate  the  vehicle  in areas 
where  the  hot  exhaust  system  may  come  in  contact  w ith  dry  grass,  brush,  fuel  spill  or 
other  material  which  can  cause  a fire. 
- Do not  app ly additional  undercoating  or 
rustproofing  on  or  near  the  exhaust  mani
fold,  exhaust  pipes,  catalytic  converter  or  heat  shields . During  dr iving,  the  substance 
used  for  undercoat ing  could  overheat  and 
cause  a fire . 
CD Note 
-Be aware  that  just  one  tank  filling  with lead
ed 
fuel  w ill already  ser iously  degrade  the 
performance  of the  catalyt ic converter . 
- Do not  exceed  the  correct  engine  oil  level 
¢ page  222. 
-Do not  drive  until  the  fuel  tank  becomes 
completely  empty . The engine  cou ld  misfire . 
Unburned  fuel  could  also  get  into  the  ex
haust  system  and  this  cou ld  cause  the  cata
lyt ic converter  to  overheat. 
- Do not  switch  off  the  ignit io n  while  the  veh i
cle  is movi ng. 
- Do not  continue  to  ope rate  your  veh icle  un
der  these  conditions,  as  othe rwise  f uel  can 
reach  the  catalytic  converter . This  could  re
sult  in overheating  of the  co nve rter , requ ir
ing  its  replacement  . 
- T o assu re  eff icient  operation  of  the  Emission 
Contro l System: 
- Have your  vehicle  maintained  properly  and 
in accordance  w ith  the  serv ice  recommen
dat ions  in your  Warranty 
& Maintena nce 
booklet . 
- Lack of  proper  maintenance  as  we ll as  im
p roper  use  of  the  vehicle  will  impair  the 
function  of 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-like  exhaus t gas  sme ll unde r some  op
erating  states.  Th is  depends  on  the  s ulf ur 
197  
         
        
        
     
        
        Page 200 of 294

Driving  and  th e  environment 
content  of the  fuel  be ing used.  Using a differ
ent  brand  of fuel  may help,  or filling the  tank 
w ith  lead-free  super  grade  gasoline. 
Diesel  particulate  filter 
A pp lies  to veh icles: w ith  d iesel e ng in e 
The diesel  particulate  filter  filters  nearly a ll of 
the  soot  particles  out  of the  exhaust . The filter 
cleans  itse lf automatically  under  normal  driving 
conditions.  If the  f ilter  cannot  clean  itself  (for ex
ample,  because  you are  only driving short  distan
ces), the  filter  becomes  clogged  with soot  and 
the 
II symbo l for  the  diesel  particulate  filter  il
lum inates ¢ 
page  20. 
_& WARNING 
-Do no t park your vehicle ove r flammable 
materials  such as  g rass  or leaves  because 
the  high temperature  of the  diesel  particu 
late  fi lter  co uld start  a fire. 
-
- Do not apply an  underbody  protectant  in the 
exha ust  system  a rea o r a fire could  start. 
Placing  your  vehicle  out 
of  service 
If you wou ld like to  take your veh icle out  of serv
ice for  a  longer  t ime,  contact  your authorized 
Aud i dealer  or authorized  Aud i Service Facility. 
They will advise you of  important  measures,  such 
as  corrosion  protection,  maintenance  and  storage  p rocedures . Also follow the  informat ion about 
the  battery ¢ 
page  228. 
Economical  and  environ
mentally-friendly  driving 
General 
Your personal  style  of  driving  will  determine  the 
economy  of your  vehicle,  as well  as exhaust  and 
noise levels . 
Fuel economy, environmental  impact,  and  wear 
on your engine,  brakes  and t ires  largely depend 
on three  factors: 
-your  personal  dr iv ing style 
- operating  conditions 
198 
- technical  limitat ions 
If you ant ic ipate  what  you need  to  do next and 
drive econom ic a lly, you can easily cut  yo ur fu el 
consump tion by 10-15  percent.  This section  will 
give you some  tips  on how you can he lp the  envi
ronment  and your pocketbook . 
(D Tips 
' 
The cons ump tion es tima tes  as  published  by 
EN VIRON MENTAL PRO TEC TION  AGENCY ( EPA) 
and T ransport  Canada may not correspond  to 
your actual  consumption  on the  road, which 
will vary depending  upon vehicle  load  and 
speed,  road and  weather  conditions,  tr ip 
l ength,  etc. 
Drive smoothly  and  keep  a lookout  ahead 
Vehicles use the  most  fuel  when  they  are  acceler
ating. 
..  Avo id unnecessary  accelerating  and  brak ing. 
Vehicles  use  the  mos t fue l when  they  a re acceler 
ating. I f yo u anticipate  what  is going to  happen 
next,  you w ill need  to  b rake less  and,  thus,  accel
erate  less.  Let the  veh icle coast  whenever  possi
ble  -for  example  when you see  that  the  next traf
fic light  is red . 
Avoid  full  throttle 
Driving  at  moderate  speeds saves fuel  and im
proves your  mileage. 
.. Try and  keep well below your car's  maximum 
speed. 
Acce lerating  gently  red uces fue l cons umption, 
engine  wear, and  does  not  disturb  the  environ
ment . 
Fuel consumpt ion,  exhaust  emiss ions and  engine 
noise  increase  d isproportionately  at  high speeds . 
If you drive at  approximate ly three  quarte rs of 
top  speed,  fue l consumption  will be reduced  by 
one  half. Never drive faster  than  the  posted 
speed  l imit and  weather  cond itions  permit.