
Instruments  and  warning/indicator  lights  17 
If the  indicator  light  turns  on and  the  mes 
sage  appears , the  coo lant  temperature  is too 
high  or the  coo lant  level  is too  low. 
.,.  Pull 
off the road. 
.,.  Stop  the  vehicle . 
.,.  Turn 
off the  engine. 
.,.  Check coo lant  level 
¢ page  23 7. 
.,.  Add coolant  if  necessary¢ 
page  238  . 
.,. Continue driving  only after  the  engine  cool
ant  warning/indicator  light  goes  out . 
.,.  Contact your authorized  Aud i dealer  for as-
s istance  if necessary . 
If the  engine  coolant  level is correct,  then  the  radiator  fan  may be the  cause  of the  malfunc 
tion . 
• Coolant  temperature  too high!  Please  let 
engine  run with  vehicle  stationary 
If the  indicator  light  turns  on and  the  mes 
sage  appears  in trailer  mode*,  let  the  engine 
run at  idle for  a few m inutes  to  cool down. 
A WARNING 
- If your veh icle should  break down for 
mechanical  or other  reasons,  park at  a 
safe  distance  from  moving  traffic, turn 
off the engine  and turn  on the  hazard 
warning  lights ¢ 
page 44,  Emergency 
flasher. 
-
- Never  open the  hood  if you see  or hear 
steam  or coolant  escaping from  the  en
gine  compartment  - you risk being scald
ed.  Wait  until  you can no  longe r see  or 
hear  steam  or coo lant  escaping . 
- The engine  compartment  of any  vehicle 
is  a dangerous  area.  Before you perform 
any work in the  engine  compartment, 
turn  of the  engine and  allow  it to  cool. 
Follow the  warning  stickers¢ 
page  224, 
Engine compartment. 
Do not  continue  driving if the . symbol 
illuminates.  There is a ma lfunct ion in the 
eng ine cooling system  -you cou ld 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/ indicator  light illuminates 
when you switch on  the ignition 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 veh icle electrical  system. 
Drive to your authorized  A udi dealer  or quali
fied workshop  immediate ly .  Because the  vehi
cle battery  is discharg ing, turn 
off all unnec 
essary  electrical  equipment  such  as the  rad io. 
Seek professional  assistance  if the  battery 
charge  level is  too low. 
t•i low  battery:  battery  will be  charged 
while  driving 
If  the  indicator  light turns  on and the  mes
sage  appears,  there  may be limited  starting 
ability. 
If this  message  turns 
off after a little  while, 
the  battery  charged  enough  while  driving. 
If the  message does not  turn off, have your 
a uthor ized Aud i dealer  or qualified  workshop 
correct  the malfunction. 
~-Safety  belts 
This  warning/indicator  light  reminds  you  to 
put  on your  safety  belt. 
The . warn ing/ indicato r light  illum inates 
when  the ignition  is  switched  on  to remind 
the  driver and  any front  passenger to  put  on 
the  safety  be lt. Additiona lly,  an  acoustic  warn
ing (gong) wi ll also  sound. 
For  more  Info rmation  ¢ 
page  140, ~ Safety 
belt  warning  light.  

the sel ector  lever  is not  in the  P position.  Shift 
the  s ele ctor  lever into  th e P position  and 
sw itch 
off the  ign ition  when you  ex it  the  vehi
cle . Otherwise  the  vehicle  could  ro ll.  See a lso 
¢page 76. 
St eeri ng  lock 
The steering  locks when you turn  the  engine 
off using the I S TAR T ENGINE STOP I button 
and open  the  d river 's door.  The locked steer
ing  helps  prevent  vehicle  theft. 
A WARNING 
- Never allow  the  engine  to  run  in confined 
spaces  -dange r of  asphyxiation . 
- Never turn 
off the  eng ine until  the  vehi
cle has come to  a complete  stop . 
- The brake booster  and  power  steer ing 
only  work  when the  engine  is running . If 
the  engine  is 
off, you  have to  use more 
force  when  steering  or  braking . Because 
you  cannot  stee r and brake as you  usua l
ly wou ld, this  could  lead to  crashes and 
serious  injur ies. 
(IT),) Note 
- Avoid high  eng ine rpm , full  th rottle  and 
heavy engine  loads unti l the  engine  has 
r eached operating  temperat ure  -other
wise yo u risk  eng ine damage. 
- The eng ine cannot  be sta rted  by pushing 
or  tow ing the  veh icle. 
-If the  engine  has been under  heavy load 
fo r an ex tended  pe riod,  hea t builds  up in 
the  engine  compartment  after  the  en
gine  is switched 
off  -there is a risk of 
damaging  the  engine.  Allow  the  engine 
to  run  at  idle for  about  2  m inutes  befo re 
switching  it 
off. 
@ Tips 
- If  you open  the  driver's  door  with  the  ig
nitio n on,  a  buzzer sounds  and the  mes
sage 
Ignition  is on appears  in the  instru
ment  cluster  disp lay. Switch  the  ign it ion 
off . 
- If  you  leave the  vehicle  with  t he ignit ion 
switched  on, the  igniti on will  switch 
off 
On  th e ro ad  77 
after a cer tain  per iod of  t ime.  P lease 
note  that  electrical  eq uipment  such as 
exterior  lights  will  sw itch 
off as well 
when  that  happens. 
Stopping  the  engine 
...  Bri ng your  ve hicle to  a complete  stop. 
...  Move the  se lector  lever  to  the  P or  N posi 
tion . 
...  Press the 
I STA RT ENGINE ST OP ! button 
¢fig. 78 . 
Emergency off 
If  necessary, the  engine  can be switched off 
with  the  selector  lever  in the  R or  D/S posi
tion . The eng ine stops  if you  press the 
I S TAR T ENG INE S T OPI button  at  speeds below 
6 mph  (10  km/h)  and press the  b rake peda l. 
A WARNING 
-Never turn off the  en gine  until  the vehi
cle has come  to a complete  stop . 
- The brake booster  and p owe r stee ring 
only  work  when  the  eng ine  is r unning . 
If 
the  engine  is off, you have to  use more 
force  when steering  or  braking.  Because 
you cannot  steer  and bra ke as you  usual
ly would,  this  cou ld  lead to  crashes and 
serious  injuries. 
- For safety  reasons, you sho uld  a lways 
park your  vehicle  w it h  the  selector  lever 
in  P. Otherwise,  the  vehicle  could  inad 
vertently  roll  away . 
- After  the  eng ine has been switched 
off, 
the  radiator  fa n can cont in ue to  run for 
up to  10  minutes  - even with  the  ignition 
sw itc hed 
off. It can also sw itch  on again 
afte r some t ime if  the  coo lant  tempera
ture  rises as the  resu lt of  a hea t buildu p 
or  if  the engine  is hot  and  the engine 
compa rtment  is additionally  heated  by 
the  s un's rays . 
(D Note 
Do no t stop the  eng ine  immedia tely  after 
hard  o r extended  driving . Keep the  engine 
.  

r::> & in General  information  on page  118, 
r::> (Din  General  information  on page  119 . 
The  blue  area  represents  an  extension  of the 
vehicle's  outline  by approximately  16  ft 
(5  m)  to  the  rear . The  long  side  of the  blue 
area  should  be  on  the  curb . The  entire  blue 
area  must  fit  into  the  parking  space. 
•  With  the  vehicle  stopped,  turn  the  steering 
wheel  to the  right  as  far as  it will  go. 
•  Back into  the parking  space  until  the  blue 
curve 
r::> fig.  131 touches  the  curb r::> & in 
General  information  on  page  118, 
r::> (D in 
General  information  on  page  119. 
Stop  the 
vehicle. 
•  With  the  vehicle  stopped,  turn  the  steering 
wheel  to  the  left  as  far  as  it will  go . 
•  Continue  to  back  into  the  parking  space  un 
t il the  vehicle  is  parked  parallel  to  the  curb 
r::> & in General  information  on page  118, 
r::> (D in General  information  on page  119. 
@ marks  the  rear  bumper. Stop  the  vehicle, 
at  the  latest,  when  the  red  orientation  line 
@ borders  an  object.  Keep  an eye  on  the 
front  of your  vehicle  while  do ing  th is . 
Parking next  to obstacles 
If there  is an  obstacle  (such  as a wall)  next to 
the  parking  space,  position  the  vehicle  so 
there  is more  space  on  that  side.  Position the 
long  side  of the  blue  surface  so  that  there  is 
sufficient  space  from  the  obstacle.  The  sur
face  must  not  be touching . You will also  need 
to  star t turning  the  steering  wheel  much  ear
lier . The  blue  curve 
r::>fig .131 must not touch 
the  obstacle  and  should  have  sufficient  room. 
(D Tips 
The  left or  right  orientation  lines  and  sur
faces  will  be  displayed,  depending  on  the 
turn  signal  being  used . 
Peripheral  cameras 
Introduction 
Applies to vehicles:  with  parki ng system  plus  w ith  periph
eral  cameras 
In  addition  to  parking  system  plus 
r::> page  117, this  pa rking  system  contains  pe-
Parking  systems  121 
ripheral  cameras.  Depending on  the  vehicle 
equ ipment,  you  are  assisted  by various  views 
such  as  peripheral  view,  corner  views  at  the 
front  and  rear  of the  vehicle,  and  views  direct
ly in front  of or  behind  the  vehicle. 
General information 
Applies  to  vehicles:  with  parking  system  plus  with  periph
eral  cameras 
Fig. 132 Locat io n  of  per ipheral  cameras 
Depending  on  the  vehicle  equipment , the  pe
ripheral  cameras  are  found  in the  radiator 
grille,  in the  luggage  compartment  lid and  on 
both  exterior  mirrors* 
r::> fig.  132. Make sure 
that  the  lenses  are not covered  by deposits  or 
any  other  obstructions  as  it  may  impair  the 
system.  For information  on  cleaning,  refer  to 
qpage  216. 
In  the peripheral mode,  black  corners  are 
shown  in the  vehicle  silhouette.  Objects  in 
these  areas  are  outside  of the  camera's  field 
of view  and  are  not  detected . 
The  accuracy  of  the orientation  lines and  the 
blue  surfaces  is  reduced  if the  adaptive  air 
suspension*  is faulty,  if the  vehicle  is lifted  or 
if the 
Dynamic mode  is activated 9 page  102. 
A WARNING 
-Always read  and  follow  the  applicable 
warnings 
r::> .&. in  General  information  on 
page  116 . 
-If  the  position  or  the  installation  angle 
of  a camera  was  changed,  after  a colli
sion  for  example,  do  not  continue  to use 
the  system  for  safety  reasons.  Have  it  checked  by your  author ized  Audi  dealer-
-
ship . ~  

128  Homelink® 
Homelink® 
Universal  remote 
control 
General  information 
Applies  to  vehicles:  with  Homelink®  unive rsal  remote 
co ntrol 
The Homelink  universal  remote  control  can 
be programmed  with  hand-held  transmitters 
from  existing  equipment. 
With  Homelink,  you  can  control devices  such 
as  the  garage  door,  security  systems,  house  lights,  etc.  comfortably  from  the  inside  of you 
vehicle. 
H omelink  makes  it  possible  for you  to rep lace 
three  different  remote  controls  from  devices  in your  home  with  one  universal  remote . Th is 
feature  works  for  most  garage  door  and  exte rior  door  moto r signals.  Programming  the  in
d iv idual  remo te control  fo r you r remote  con 
trol  takes  p lace  near  the  center  of the  radiator 
grille.  There  is a  control  module  attached  at 
this  location . 
A one-t ime  programm ing  of  the  sensor  mus t 
be  performed  before  you  are  able  to  use  sys
tems  w ith  Homelink. 
A WARNING 
- Never  use  the  Homelink ® transmitter 
with  any  garage  door  opener  that  does  have  not  the  safety  stop  and  reverse  fea
ture  as  required  by  federa l safety  stand
ards.  This  includes  any  garage  door  open
er  mode l manufact ured  before  April  1, 
1982. 
- A garage  door  opener  which  cannot  de
tect  an  object,  signaling  the  door  to  stop 
and  reverse  does  not  meet  cur rent  feder
al  safety  s tandar ds.  Us ing  a  garage  doo r 
o pener  witho ut  these  fea tures  in creases 
risk of  serious  inj ury or  death. 
- F or safe ty reasons  never  release  t he 
parking  brake  or  s tart  the  engine  while 
anyone  is standing  in front  of the  vehicle . 
- A garage  door  or  an  est ate  gate  may 
sometimes  be  set  in  motion  when  the  Homelink
® remote  control  is  being  pro
grammed.  If  the  device  is  repeatedly  ac 
tivated,  this  can  overstrain  motor  and 
damage  its  electrica l components  - an 
overheated  motor  is a fire  hazard! 
- To avo id  possible  injuries  or  property 
damage,  please  always  make  absolutely 
certa in that  no  persons  or  objects  are  lo
cated  in the  rang e of  motion  of any 
equ ipme nt  bei ng  ope rated. 
(0 Tips 
- If you  would  like add itional  information 
on  the  Home  Link® Unive rsal  Transce iver, 
Homelink  compatib le  p roducts,  or to 
purc hase  other  accessories  s uch as  the 
HomeL ink® Light ing  Package,  please 
contact  Homelink  at  1-800 -355 -3515  o r 
on  the  Internet  at  www.homelink .com. 
- For  Declaration  of  Comp liance  to  Unite d 
States  FCC and  Ind ustry  Canada  reg ula 
tions 
¢ page  292. 
- For security  reasons,  we  recommend  that 
you  clear  the  programmed  b uttons  be
fore  selling  the  vehicle . 
Operation 
Applies  to  vehicles:  wit h Ho meli nk 
Fig . 14 5 Headliner:  controls 
M 0 
9 (!) 
~ 
Requi rement:  The  bu tto ns  must  be  program
med 
¢ page  129 . 
"' To open  the  garage  doo r,  press  the  pro
grammed  b utton.  The  LED  @ will  light  up  o r 
flash. 
"'  To close  the  ga rage  doo r,  press  the  button 
aga in . 
Ill>  

@ Tips 
To open the garage  door,  press  the button, 
but  do  not  press it  for  longer  ten seconds 
or the  Homelink  modu le w ill switch  to 
programming  mode . 
Programming  the  transmitter 
Applies  to vehicles : with  Home Link 
Fig. 146 Dist an ce be tween the  ra diato r gr ille a nd  the 
hand  t ransm itter 
You can  program  the fixed  code  and  rolling 
code  systems  using  the  described procedure. 
Programming  the  button 
.. Turn  the  ignition  on. 
..  There  are  two  ways  to  program  a  button: 
press  the  button  that  you would  like to  pro
gram . The  MMI will  display  instructions  to 
guide  you  through  the  programm ing . O r 
..  Se lect:  ICARlfunction  button> 
( Car) * sys
tems 
con trol  button  > Vehicle  settings > 
Garage door opener > Program  garage door 
opener . 
..  Se lect  the  button  that  you  wou ld like to 
program  . 
..  Fo llow the  instructions  in the  MMI. 
..  If  the  garage  door  opening  must  also  be 
synchronized  with  the  Homelink  module, 
refer  to  the  owner's  manual  for the  garage 
door  opener . 
Remote  control  units for  garage  door  openers 
in  Canada  are  set  to  stop  transmitting  radio 
frequency  s ignals  after  two seconds . This time 
may  not be  sufficient  for  the  Homelink  sys
tem  to  learn  the  radio  frequency signal.  Per
form  all  other  steps as descr ibed  above . 
Homelink ® 129 
Erasing/Clearing  the  programmed  button 
settings 
..  To  erase  all  of the  programmed  buttons  at 
the  same  time,  select:  !CAR ! function  button 
> 
(Car)*  systems function  key> Vehicle set
tings 
> Garage door  opener > Clear pro
gram  settings>  Yes . 
The  programmed  but
tons  can  not  be  erased individua lly . Repro
gram  the  buttons  if necessary  . 
..  Reprogram  an  individual  button  in  the same 
manner  that  you wou ld for  the  one-time 
programming. 
Displaying  the  version/status/country 
code 
..  Select:  I CAR I function  button  > (Car)*  sys
tems 
control  button  > Vehicle settings > 
Garage door opener > Version information . 
(D Tips 
- The required  distance  between  the  hand 
transmitter  and  the  Homelink  mod ule in 
the  radiator  grille~ 
fig. 146 depends  on 
the  system  that  you  are  programm ing . 
- Depending  on  the  mode l of the  garage 
door  opener,  you  may  need to  release  the 
button  on the  remote  and  press  it again 
when  programming.  When program
ming  a  new  device,  keep  the  button 
pressed  for  at  least  15  seconds  before 
trying  again  with  the transmitter  in  a  dif
ferent  position.  

230  Checking  and  filling 
Checking  and  filling Engine  hood 
Releasing the  engine  hood 
The engine  hood  is released  from  inside  the 
vehicle . 
Fig. 187 Driver foo twell:  release  lever 
Fig. 188 Rocker  switch un der  the  hood 
Make  sure  the  wiper  arms  are  not  raised  up 
from  the  windshield.  Otherwise  the paint 
could  be  damaged . 
.,.  Pull the  lever  under  the  instrument  panel  in 
the  direction  of the  arrow 
~ fig.  187. 
.,. Raise  the  hood  slightly~,&. . 
...  Press  the  rocker  switch  under  the  hood up
ward 
~ fig.  188. This  releases  th e catch. 
...  Open  the  hood. 
&_ WARNING 
Hot  engine  coolant  can  burn  you. 
- To reduce  the  risk  of  being burned,  never 
open  the  hood if you  see  or  hear  steam 
or  coolant  escaping  from  the  engine  compartment . Wait  until  no  steam  or 
coolant  can  be  seen  or  heard  before  care
fully  opening  the  hood . 
'Working  in the  engine  compartment 
Be especially careful whenever  you  work in 
the  engine  compartment. 
Whenever  you  must  perform  any work  in the 
engine  compartment,  for  example  checking 
and  filling  different  fluids,  there  is a risk of  injury,  burns and  accidents. To prevent  per
sonal  injury  always  observe the  following 
WARNINGS.  The engine  compartment  of  any 
vehicle  is a  hazardous  area 
~ ,&. . 
A WARNING 
To help  avoid  injury, before  you  check  any
thing  under  the  hood: 
- Turn  off the  engine. 
- Switch  off the  ignition . 
- Apply the  parking  brake. 
- Move selector  lever to  P (Park). 
- Always  let  the  engine  cool  down.  Hot 
components  will  burn  skin  on  contact. 
- To reduce  the  risk of  being  burned,  never 
open  the  hood  if you  see  or  hear  steam 
or  coolant  escaping  from  the  engine 
compartment.  Wait  until  no  steam  or 
coolant  can be  seen  or  heard  before  care
fully  opening  the hood. 
- Keep  children  away  from  the  engine  com
partment. 
- Never  spill  fluids  on  hot  engine  compo
nents . They can  cause  a fire  . 
- Never  touch  the  radiator  fan.  The auxili
ary  electric  fan  is temperature controlled 
and  can  switch  on  suddenly  . 
- Never  open  the  coolant  reservoir  cap 
when  the  engine  is still  warm . The  cool
ant  system  is pressurized  and  hot  cool
ant  could  spray  out. 
- Protect  your  face,  hands  and  arm  from 
steam  or  hot  engine  coolant  by placing  a 
thick  rag  over the cap  when  you  open  the 
coolant  reservoir. 
- Do  not  remove  the  engine cover  under 
any  circumstances.  This  increases the 
risk of  burns. 
- If  work  on  the  fuel system  or the  electri
cal  system  is necessary:  

-Always disconnect  the  battery. 
- Never  smoke  or work  near  heaters  or  open  flames.  Fluids  in the  engine  com
partment  could  start  a fire. 
- Keep an  approved  fire  extinguisher  im
mediately  available. 
- To  avoid  electrical  shock  and  personal  in
jury  while  the  engine  is  running or  being 
started,  never  touch : 
- Ignition  cables 
- Other  components  of the  high  voltage 
electronic  ignition system. 
- If you  must  perform  a check  or  repair 
with  the  engine  running: 
- First,  fully  apply  the  parking  brake, 
move  selector  lever  to  P (Park). 
- Always use  extreme  caution  to  prevent 
clothing,  jewelry, or long  hair  from  get
ting  caught  in the  radiator  fan,  V-belts 
or  other  moving  parts,  or from  contact ing  hot  parts.  Tie back  hair  before 
starting,  and  do  not  wear  clothing  that 
will hang  or  droop  into  the  engine. 
- Minimize  exposure to  emission  and 
chemical  ha zards c:::> & . 
A WARNING 
California  Proposition  65  Warning: 
- Engine  exhaust,  some  of  its constituents, 
and  certain  vehicle  components  contain 
or  emit  chemicals  known  to  the  State  of 
California  to  cause  cancer  and  birth  de
fects  and  reproductive  harm.  In  addition , 
certain  fluids  contained  in vehicles  and 
certain  products  of  component  wear  con
tain  or  emit  chemicals  known  to  the 
State  of California  to cause  cancer  and 
birth  defects  or  other  reproductive  harm . 
Checking  and  filling  231 
-Battery  posts,  terminals  and  related ac
cessories  contain  lead  and  lead  com
pounds,  chemicals  known  to  the  State  of 
California  to  cause  cancer  and  reproduc
tive  harms.  Wash  hands  after  handling. 
(D Note 
When  adding  fluids,  always  make  sure  that 
they  are  poured  into  the  proper  container 
or  filler  opening,  otherwise  serious  dam
age  to  vehicle  systems  will occur. 
(® For the  sake of  the  environment 
To detect  leaks  in time,  inspect the  vehicle 
floor  pan  from  underneath  regularly . If 
you  see  spots  from  oil or  other  vehicle  flu ids,  have  your  vehicle  inspected by an  au
thorized  Audi  dealer. 
Closing the  engine  hood 
.,.  Pull the  hood  down  until  the pressure  from 
the  struts  is reduced. 
.,.  Let the  hood 
drop  down and  latch  in  place. 
Do not  try to push  it shut; it  may  fail  to  en
gage 
c:::> ,A . 
A WARNING 
-
A hood  that  is  not  completely  latched 
could  fly up  and  block your  view  while  driv 
ing . 
- When  you  close  the  engine  hood,  check  it 
to  make  sure  the  safety  catch  has  proper ly engaged.  The hood  should  be flush 
with  the  surrounding  vehicle  body  parts. 
- If you  notice  while  driving  that  the  hood 
is not  secured  properly , stop  at  once  and 
close  it.  • 
•  

Engine  cooling  system 
Coolant 
The engine  coolant  performs  two  functions:  it 
keeps  the  engine  from  overheating  and  it pro 
te cts  the  engine  from  freezing  in the  winter . 
The  cooling  system  is sealed  and  generally  re
qu ires  little  attention . 
The  cooling  system  has  been  filled  at  the  fac
tory  with  a  permanent  coolant  which  does  not  need  to  be  changed.  The  coolant  consists  of  a 
mixture  of water  and  the  manufacturer's  gly 
col-based  coolant  additive  G13  ant ifreeze 
w ith  anticorrosion  add itives  (50%  fo r USA 
models;  60%  for  Canad ian  models).  This  mix
ture  bot h assu res  the  ne cessary  frost  protec
tion  and  protects  metal  components  in the 
engine's  coo ling  system  from  corrosion  and 
scaling.  It  also  raises  the  boili ng  po int  of t he 
coolant. 
D o  not  red uce  the  concentration  o f the  coo l
ant  in the  summer  by adding  plain  water . 
The 
proportion of  coolant  addit ive  must  be at 
least  50%  but  not  mo re than  60 % 
to  main
tain  antifree ze  protection  and  cooling  efficien
cy. If  the  coolant  frost  protection  is too  low, 
the  coolant  cou ld freeze  and  damage  the  veh i
cle  heating  and  eng ine  cooling  system . 
For year-round  driving,  antifree ze  is  added  at 
the  factory  for  temperatures  down  to: 
- -3 1°F (-35°C)USA 
- -40  ° F ( - 4 0  °C) Canada. 
A WARNING 
Before  yo u check  anything  in the  engine 
compartment , always  read  and  heed  a ll 
WARNINGS 
¢ & in Working  in the  engine 
compartment  on page  230. 
(D Note 
- Befo re  winter  sets  i n, have  the  coolant 
chec ked  to  see  i f th e  coo lant  ad dit ive i n 
you r vehicle  is suffic ient  to  meet  the  cli
mate  cond itions . T hi s is  especially  impor
ta nt  if yo u live in a  regi on whe re the  w in-
-
Checkin g and  fillin g 237 
ter  is ex treme ly co ld.  If  necessary,  i n
crease  t he  p ro po rtion  of  coo lant  additive 
to  60%. 
- W hen  a dding  coolant  additive  to  yo ur 
cooling  system , remembe r: 
- We  recommend  us ing  on ly coo la nt  ad
di tive  G 12++  or  G 13  (check  the  labe l) 
fo r you r ve hicl e. This  coolant  additive  is 
a v ailabl e at  author ized Aud i de alers. 
Ot he r ty pes  of  antifree ze  can  signifi
cantly  reduce  corros ion  p rotec tion.  The 
r es ulting  co rrosion  can  cause  a  loss  of 
coolant  and  serio us  engine  damage . 
- Do  not  add  any  ty pe of  rad iator  leak  seal 
ant  to  you r vehicle's  engine  coo lant . 
Add ing  radiator  repair  flu id  may  adverse 
ly affect  t he fu nction  and  performance  of 
your  cooling  system  and  cou ld  result  in 
damage  not  covered  by yo ur New Ve hicle 
L imited  Warranty . 
Checking  the  engine  coolant  level 
The engine  coolant  level can be  checked  with 
a quick glance. 
Fig.  19 2  Engine  co mpart ment:  cover on t he coo la nt 
expansio n ta nk 
Before  you  check  a nyth ing  in the  eng ine  com
partment, 
always  read and heed  all WARN
INGS <=>&. 
in  Working  in the  engine  compart 
ment  on page  230 . 
.,. Park yo ur vehicle  on  a  level  surface . 
.,.  Switch  off  the  ignition . 
.,.  Read  the  e ngine  coolant  level  from  the 
coo la nt  expansion  tan k<=> 
fig . 192, 
¢ fig.  189 . With  a cold  engine,  the  coolant 
level  s hou ld  be  be tween  the "m in" and 
" max"  mar kings.  Whe n the  engi ne  is w arm, 
Ill>-