
Intelligent  Technology 
& WARNING 
- Also,  in vehicles  with  all  wheel  drive,  adapt 
your  driv ing  style  to  the  curre nt  road  and 
traffic  conditions.  Do not  let  the  increased  safety  provided  tempt  you  into  tak ing  risks, 
because  th is increases  the  r is k  of  an  acci
dent. 
- T he  brak ing  ability  of  your  vehicle  is  limited 
to  the  tra ction  of  the  wheels.  In this  way,  it 
is  not  diffe rent  from  a two  whee l dr ive ve hi
cl e. Do not  be  tempted  to  accelerate  to  a 
high  speed  when  the  road  is slippery  this  in
c reases  the  risk of  an  acc ident. 
- Note  that  on  wet  stree ts, the  front  wheels 
can  "hyd roplane"  if d riving  at  speeds  that 
are  too  high.  Unlike  front  whee l drive 
vehicles,  the  eng ine  does  not  rev  higher  sud
denly  when  the  vehicle  begins  hydroplaning. 
For this  reason,  pay  attention  to  the  road 
condit ions  regardless  o f you r sp eed  to  re
duce  the  r is k  of  an  accident. 
Energy  management 
The starting  ability  is optimized 
The energy  managemen t system  manages  the 
electrical  energy distribution  and  optimizes  the 
availability of  electrical  energy for starting  the 
engine. 
When  a  ve hicle wit h  a  co nven tional  energy  sys 
tem  is not  driven  for  a  long  time,  the  batte ry is 
d rained  by equipment  (for  example  t he  immobi l
izer) . In  certain  circumstances,  there  could  may 
not  be  eno ugh  energy  to  start  the  engine. 
Your vehicle  is equipped  with  a n intelligent  ener 
gy management  system  for  distr ibuting  e lectric i
ty.  This s ignificantly  improves  the  starting  ability 
and  increases  the  b attery  life. 
The  energy  management  system  Is  made  up  of 
battery  diagno sis , idling current management 
and dynamic energy management . 
Battery  diagnosis 
T he  batte ry d iagnosis  de term ines  t he  b att ery 
ch arge  level.  The  senso rs detect  the  battery,  the 
battery  current,  and  the  battery  temperature. 
192 
The  c urren t cha rge  level  and  the  performance  of 
the  battery  are  determined  based  on  this . 
Idling  current  management 
The  idling  current  manageme nt  decreases  the 
energy  used  while  parked.  Wi th the  engine 
swi tched  off , it  m anages  t he  energy  dis trib ution 
to  the  d ifferent  e lectrica l components.  Date  from 
batte ry diagnosis  is taken  into  acco unt  for  this. 
De pend ing  on  the  b atte ry charge  level,  ele ctrical 
equipmen t  is  switched  off  one  item  a fter  the  o th 
er,  to  preven t the  bat tery from  draining  and  to 
retain  the  starting  ability . 
Dynamic  energy  management 
While driv ing , dynam ic energy  manageme nt  dis 
t ribu tes  the  appr opr iate  amo unt  of  energy  to  the 
e lectri ca l eq uipment.  It  contro ls the  battery 
charge  level  so  that  more  energy  is not  used  then 
is  being  generated  in order  to  maintain  an  opti
mal  battery  charge  level. 
(D Tips 
- Ener gy management cannot overcome the 
laws  of  p hysics . Note  that  the  charge  level 
and  length  of  the  battery  life  are  limited. 
- Whe n the  sta rting  ability  is  endangered,  the 
(•)  indicator  light  t urns  on 
~page  16. 
What  you should  know 
Maintaining  the  starting  ability is the  highest 
priority. 
A  lo t  of  st ress  is  placed  on  the  b attery  when  dr iv
i ng  sho rt distances,  in t raff ic,  and  at  cold  times 
of  the  year . A lot  of  energy  is used  but  litt le  is 
generated.  It  is also  critical  when  the  engine  is 
not  running  but  e lectr ica l equipment  is sw itched 
on.  In  th is  case,  energy  is used  but  none  is  gener
ated. 
In  sit uat ions  like  th is,  ene rgy management  w ill 
active ly regulated  the  dis trib ution  of  energy. 
Long periods without  use 
I f you  do  not  drive yo ur vehicle  for  sever al days  o r 
weeks,  e lectrica l equipment  is gradua lly sca le d 
back  or  sw itched  off.  This  reduces  ene rgy use  and  ..,.  

Driving  and  th e en vironm ent 
content  of the  fuel  be ing  used.  Using a differ 
ent  brand  of fue l may he lp, or filling the  tank 
w ith  lead-free  super  grade  gasoline. 
Diesel  particulate  filter 
Applies  to vehicles:  with  diesel engine 
The diesel  particulate  fi lter  fi lters  nearly all of 
the  soot  particles  out  of the  exhaust.  The fi lter 
cleans  itself  automatically  under normal  driving 
conditions. 
If the  filter  cannot  clean  itself  (for ex
ample,  because  you are  only driving short  distan
ces),  the  filter  becomes  clogged  w ith  soot  and 
the 
II symbo l for  the  diesel  particulate  filter  il
lum inates ¢ 
page  20. 
_& WARNING 
-Do not  park you r vehicle over flammable 
materials  such as  grass  or  leaves because 
the  high temperature  of the  diese l particu
late  fi lter  could start  a fire . 
-
-Do not  apply an  underbody  protectant  in the 
exhaust  system  area  or a fire could start. 
Placing  your  vehicle  out 
of  service 
If you would  like to  take  your vehicle out  of serv
ice for  a  longer time,  contact  your authorized 
Audi dealer  or qualified  repair  facility. They will 
adv ise you of important  measures,  such  as corro
sion  protection,  maintenance  and  storage  proce
dures.  A lso follow the  information  about  the bat
tery ¢ 
page  226 . 
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  tires  largely depend 
on three  factors : 
-your  personal  driving style 
- operating  conditions 
196 
- technical  limitations 
If  you ant icipate  what  you need  to do next  and 
drive economically, you  can easily cut  your fuel 
consumption  by 10-15  percent.  This sect ion will 
give you some  tips  on how you can  help the  envi 
ronment  and your  pocketbook. 
(D Tips 
' 
The consumption  estimates  as  published  by 
ENVIRONMENTAL  PROTECTION AGENCY 
(EPA) and Transport  Canada  may not  corre
spond  to your actual  consumption  on the 
road,  which will vary depending  upon  vehicle 
load  and  speed,  road and  weather  conditions, 
trip  length,  etc. 
Drive smoothly  and  keep  a  lookout  ahead 
Vehicles use  the most  fuel  when  they are  acceler
ating. 
..  Avoid unnecessary  accelerat ing and  braking . 
Vehicles use  the  most  fuel  when  they  are acceler
ating.  If you anticipate  what  is going to  happen 
next,  you will need  to  brake  less and,  thus,  accel
erate  less.  Let the  vehicle 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  reduces  fuel consumption, 
engine  wear,  and  does  not  disturb  the  environ
ment . 
Fuel consumption,  exhaust  emissions  and  engine 
noise  increase  disproportionate ly at  high speeds. 
If you  drive at  approximately  three  quarters  of 
top  speed,  fuel  consumption  will be  reduced  by 
one  half.  Never drive faster  than  the  posted 
speed  limit and  weather  conditions  permit.  

Wheels 
-Have  an  authorized  Audi  dealer or  authorized  repair  facility 
check  the  wheel  alignment  if 
there  is unusual  wear . 
-Have  the  wheels  rebalanced if an 
imbalance  is  causing  noticeable 
vibration  in  the  steering  wheel.  If you  do  not,  the  tires  and  other 
vehicle  components  could  wear  more  quickly. 
Treadwear  indicator 
The  original  tires  on  your  vehicle 
have  1/16  inch  (1.6 mm)  high 
"wear  indicators"¢ 
fig. 194 run
ning  across  the  tread.  Marks  on 
the  tire  sidewall  (for example 
"TWI"  or  other  symbols)  indicate 
the  positions  of the  tread  wear  in
dicators. 
The  tires  have  reached  the  mini
mum  tread  depth 
l) when  they 
have  worn  down  to  the  treadwear 
indicators.  Replace  the  tires  with 
new  ones  ¢Ai.. 
Wheel  rotation 
Rotating  the  wheels  regularly  is 
recommended  to  ensure  the tires 
wear  evenly . To  rotate  wheels,  in
stall  the  wheels  from  the  rear 
1> Obey any applicable  regulations  in your 
country. 
240 
axle  on  the  front  axle  and  vice 
versa.  This will  allow  the  tires  to 
have  approximately  the  same 
length  of  service  life. 
For  unidirectional  tires,  make 
sure  the tires  are  installed  accord
ing  to  the  running  direction  indi
cated  on  the  tire  sidewall 
¢page 258. 
Hidden  damage 
Damage  to  tires and rims  can  of
ten  occur  in locations  that  are 
hidden.  Unusual  vibrations  in the 
vehicle  or  pulling  to  one  side  may  indicate  that there  is tire  damage . 
Reduce  your speed  immediately . 
Check  the  tires  for  damage.  If  no 
damage  is visible  from  the  out
side,  drive  slowly  and  carefully  to 
the  nearest  authorized  Audi  deal
er  or  authorized  repair  facility  to 
have  the  vehicle  inspected. 
A WARNING ~ 
Tread  that  has  worn  too  low  or 
different  tread  depths  on  the 
tires  can  reduce  driving  safety. 
This  can  especially  have  a  nega
tive  effect  on  handling,  on  the 
risk  aquaplaning  when  driving  .,.