AUDI A5 CABRIOLET 2017 Owners Manual
Manufacturer: AUDI, Model Year: 2017, Model line: A5 CABRIOLET, Model: AUDI A5 CABRIOLET 2017Pages: 266, PDF Size: 66.64 MB
Page 201 of 266

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Cooling  system 
Coolant 
The engine  coolant  performs  two  functions:  it 
keeps  the  engine  from  overheating  and  it pro 
tects  the  engine  from  freezing  in the  winter . 
The  cooling  system  is sealed  and  generally  re
quires  little  attention. 
T he  cooling  system  has  been  filled  at  the  factory 
with  a  permanent  coolant  which  does  not  need  to 
be  changed . The  coolant  consists  of  a  mixture  of 
specially  condit ioned  water  and  the  manufactur 
er's  glycol-basedcoolant  add itive  G 13  antifreeze 
with  anticorrosion  additives  (SO% for  USA mod
e ls;  60%  for  Canadian  mode ls).  This m ixture 
both  ass ures  the  necessa ry frost  protection  and 
protects  metal  components  in the  engine's  coo l
ing  system  from  corrosion  and  scaling . 
It also 
raises  the  boiling  point  of  the  coolant. 
Do not  red uce  the  concent ration  of  the  coolant  in 
the  summer  by  adding  p lain  water. 
The propor
tion  of  coolant  addit ive  mu st  be at  least  50 % 
but  not  more than  60 % 
to  mainta in  antifreeze 
protection  and  cooling  efficiency.  If  the  coolant 
frost  protection  is  too  low,  the  coolant  could 
freeze  and  damage  the  vehicle  heating  and  en
g ine  cooling  system . 
For year-round  driving,  antifree ze  is added  at  the 
factory  for  temperatures  down  to : 
- -31° F(- 3S°C)USA 
- - 40  ° F ( - 40  °C) Canada. 
If you  must  add  coolant,  use  a  m ixture  of  water 
and  coolant  addit ive.  M ixing  the  coolant  additive 
with  d istilled  water  is recommended . 
_& WARNING 
Before  you  check anythi ng  i n t he  engine  com
partment,  always  read  and  heed  all  WARN 
INGS 
¢ .&. in Working  in the  engine  compart
ment  on page  193 . 
(D Note 
-Befo re winter  se ts  in,  have  the  coo lant 
checked  to  see  if the  coolant  additive  in your 
vehicle  is sufficient  to  meet  the  cl imate  con -
Check ing  and  Filling 
ditions.  This  is especially  important  if you 
live  in a  region  where  the  winter  is extreme
ly cold.  If  necessary,  increase  the  proportion 
of  coolant  additive  to  60%. 
- When  adding  coolant  additive  to  your  cool
ing  system,  remember : 
- We  recommend  us ing  only  coolant  add i
tive  G12+ + or  G13  for  yo ur vehicle.  This 
coolant  addit ive  is avai lab le  at  aut horized 
A udi  dealers . O ther  types  of  antifree ze  can 
significantly  reduce  corrosion  pro tect ion . 
The  resulting  corrosion  can  cause  a  loss  of 
coolant  and  serious  engine  damage. 
- Do not  add  any  type  of  radiator  leak  sealant 
to  your  vehicle's  engine  coolant.  Adding  ra 
diator  repair  fluid  may  adversely  affect  the 
function  and  performance  of  your  cooling  system  and  cou ld  resu lt  in damage  not  cov
ered  by your  New  Veh icle  Limited  Warra nty . 
Checking  the  engine  coolant  level 
The engine  coolant  level can be  checked  with  a 
quick glance. 
Fi g.  1 74 Engin e  compar tmen t: Cover o n the  coo la n t  ex 
pansion  tank 
..  Before  you  check  anything  in the  eng ine  com
partment, 
always  r ead and  heed  all  WARN
INGS ¢ ,A in Working  in the  engine  compart 
ment  on page  193 . 
..  Par k your  veh icle  on  a  leve l sur face. 
..  Tur n  off  t he  ignit io n . 
..  Read  the  eng ine  coolan t leve l from  the  coo lant 
expansion  tank 
¢ fig . 174,  ¢page  195, 
fig.  171 . 
With  a  cold  engine,  the  coo lant  level 
should  be  b etween  the  "MIN" and "MAX"  mark
ings.  When  the  eng ine  is warm,  the  level  may 
be  slightly  above  the  "MAX" marking.  .,.. 
199  
Page 202 of 266

Check ing  and  F illing 
The  location  of  the  coolant  expansion  tank  can  be 
seen  in the  engine  compartment  illustration 
¢ page  195. 
To obtain  an  accura te  reading,  the  eng ine  must 
be  switched  off . 
The  expans io n  tank  in your  vehicle  is  equipped 
with  a n elec tric coolant  level  sensor. 
When  the  coolant  level  is  too  low,  the  war ning 
lig ht  in the  Auto-Check  System¢ 
page  15 will 
blin k until  you  add  coo la nt  and  the  level  has  bee n 
restored  to  normal.  Even  t hou gh  the re  is  an e lec
tr ic coolant  level  sensor,  we  still  re commend  you 
check  the  coo lant  level  from  time  to  time . 
Coolant  loss 
Coolant loss  may  indicate  a leak in  the  cooling 
system.  I n the  event  of  coolant  loss,  the  cooling 
system  should  be  inspected  immediately  by your 
author ized  Audi  dealer.  It  is  not  enough  me rely 
to  add  coolant. 
I n a 
se aled system,  losses  can  occur  only  if the 
boi ling  point  of  the  coo lant  is ex ceeded  as  a  re 
sul t of  over heat ing. 
A WARNING 
T he  cooling  system  is unde r pressure  and  can 
get  very  hot . Red uce  the  risk  of  scalding  from 
hot  coolant  by following  these  steps. 
- Turn  off  the  eng ine  and  a llow  it to  cool 
down . 
- Protect  your  face,  hands  and  arms  from  es 
caping  fluid  and  steam  by  cove ring  the  ca p 
with  a  la rge,  thick  rag. 
- Turn  the  cap  s lowly  and  very  ca refu lly in a 
counter-clockwise  direction  w hile  ap ply ing 
light,  downwa rd  pressure  o n the  top  of  the 
cap. 
- To avo id  being  burned,  do  not  sp ill anti
freeze  or  coolant  on  the  exha ust  system  or 
hot  eng ine  parts.  Under  certain  conditions, 
the  ethy lene  g lycol  in e ngine  coolant  can 
catch  fire. 
(D Note 
Do not  add  any  type  of  radiato r leak  sealant 
to  your  veh icle's  engine  coolant.  Adding  radia-
200 
tor  repair  fluid  may  a dverse ly affect  the  func 
tion  and  performance  of  your  coo ling  system 
and  could  result  in damage  not  covered  by 
your  New Vehicle  Limited  Warranty. 
Adding  coolant 
Be very careful  when  adding  engine  coolant. 
Befo re yo u check  any thing  in the  engine  compart
ment, 
always  read  and  heed  all  WARNINGS 
¢ A in Working in the  engine  compartment  on 
page  193. 
Requireme nt:  The re  mus t  be a  res idual  amo unt 
of  coolant  in the  expans ion  tank ¢(!) . 
""Tur n off  t he  engine . 
"" Let  the  eng ine cool  down. 
""  Pla ce a  thick  rag  over  the  coolan t ex pan sio n 
tank ¢ 
page  199,  fig.  174 and carefull y turn 
the  cap  counter-clockwise ¢,&. . 
"" Add  coolant  m ixed  in the  cor rect  rat io 
¢page  199,  Coolant up  to  the  MAX ma rking. 
"" Make  sure  that  the  fluid  level  remains  stab le. 
Add  more  coolant  if  necessa ry . 
"" Twis t the  cap  o n aga in 
tightly. 
Replacement  eng ine  coolant  must  conform  to  ex
act  specifications ¢ 
page  199,  Coolant. 
We  recommend  using  only  coo lant  ad ditive  G 12+ 
+ ,  G13  or  in  an  emergency  G12+.  Do 
not use  a 
different  additive.  In  an  emergency  use  plain  wa
te r unt il you  can  get  the  cor rect  addit ive  and  ca n 
r esto re the  cor rect  rat io.  Thi s should  be  done  as 
soon  as  possib le. 
If you  have  lost  a  considerable  amount  of  coo l
an t, then  you  s hou ld  add  co ld  a ntifreeze  and  cold 
water  only  whe n the  engine  is  co ld. 
A lways  use 
new engine  coo lant  when  ref illing. 
Do no t fill c oolant  above  the  "MAX"  mark .  Excess 
coolant  will  be  forced  out  th rough  the  pressure 
r elief  valve  in the  cap  when  the  engine  becomes 
hot. 
~  
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A WARNING ,~ 
- The cooling system  is under  pressure  and 
can get  very hot.  Reduce the  risk of scald ing 
from  hot coolant  by following these  steps. 
- Turn 
off the  engine  and  allow it to  coo l 
down. 
- Protect  you r face,  hands  and  arms  from 
escaping  fluid and  steam  by cover ing the 
cap with  a large,  thick rag. 
- Turn the  cap slowly and very carefully  in a 
counter-clockwise  d irection  while applying 
light,  downward  p ressure  on the  top  of 
the  cap. 
- To avoid being  burned,  do not  spill anti
freeze  or coolant  on the  exhaust  system  or 
hot  engine  parts.  Under certa in cond i
tions,  the  ethylene  glycol in eng ine cool
ant  can catch  fire. 
- Antifreeze  is poisonous.  Always store  anti
freeze  in  its  orig inal container  and  well out 
of the  reach  of children. 
- If you dra in the  coolant,  it must  be caught 
and safely stored  in a proper  conta iner 
clearly marked  "poison". 
- Do not  add  coolant  if the  expansion tank  is 
empty.  Air cou ld enter  the  cooling system 
and  damage  the  eng ine. If this  is the  case, 
do not continue  driving . Seek professional 
ass istance. 
- Coolant pollutes  the  env ironment  and  could 
cause  an eng ine fire.  Excess coolant  will be 
fo rced o ut  through  the  pressure  relief valve 
i n the  cap when  the  e ng ine be comes  hot. 
- If, in an emergency,  only wate r can be add
ed,  the  co rrect  r atio  betwee n wate r and  an
tifree ze 
Q page  199 must  be  res to red as 
soon  as  possib le. 
{® For the  sake of the  environment 
Dra ined  coolant  sho uld  not  be  reused.  Always 
disp ose  of  used coolant  while obse rving all 
env ironment al regulat ions. 
-
Ch eck ing  and  Filling 
Rad iator  fan 
The  radiator  fan  switches  on  automatically  by it
self . 
The  radiator  fan  is driven by the  engine  via the  V
belt.  The viscous  clutch  regulates  th e speed  of 
the  fan accord ing to  the  temperature  of the  cool
ant . 
An auxiliary e lectr ic radiator  fan* switches  on  and 
off depending on coo lant  temperature  and  other 
vehicle operating  conditions. 
After you switch the  engine 
off, the  auxiliary fan 
can  continue  running  for  up to  10  m inutes  -even 
with  the ignition 
off. It  can even switch  on aga in 
later  by itself 
Q .& , if 
- the  temperature  of the  engine  coolant  rises due 
to  the  heat  build-up from  the  engine  in the  en
gine compartment,  or 
- the  engine  compartment  heats  up beca use  the 
veh icle is parked  in intense  sunlight. 
A WARNING 
- To reduce  the  r isk of persona l injury neve r 
touch  the  radia to r fan . 
- The auxiliary e lectr ic fan  is temperature 
controlled  and  can switch  on s uddenly  even 
when  the  engine  is not  ru nning . 
- The a uxiliary radiator  fan  sw itches  on auto
mat ically when  the  eng ine coolant  reaches  a 
certa in temperature  a nd will continue  to  run 
until  the  coolant  temperature  d rops. 
201  
Page 204 of 266

Checking  and  Filling 
Brake  fluid 
Checking brake  fluid  level 
The brake  fluid  level can be  checked  with  a quick 
glance. 
Fig. 175  Engine compartment:  Cover on the  brake fluid 
r eservoir 
Before  you  check  anything  in the  engine  compart
ment, 
always  read  and  heed all  WARNINGS 
¢ A in Working  in the engine  compartment  on 
page  193. 
.,  Read  the  brake  fluid  level  from  the  brake  fluid 
reservoir 
<=> fig . 175,  ¢page  195,  fig . 171 . The 
brake  fluid  level  must  be  between  the 
" MIN" 
and  "MAX " markings. 
The  brake  fluid  reservoir  is  located at  the  rear 
partition  of  the engine  compartment  on  the  left 
side 
¢ page  195. 
The  fluid  level may drop slightly after  some  time 
due  to  the  automatic  adjustment  of  the  brake 
pads . This  is not  cause  for alarm . 
If  the  brake  fluid  level falls 
considerably below 
the  ' 'MIN"  mark,  the  brake warning/indicator 
light  (U .S.  models: 
1111 , Canadian  models: 1111) 
will come  on¢ page  13 . Do not  continue  to oper
ate  the  vehicle . The  complete  brake  system 
should  be  thoroughly  checked  by an authorized 
Aud i dealer  or  qualified workshop  and  the  cause 
corrected . If the  brake  fluid  level  is  too low,  the 
brake  warning/indicator  light  w ill  illuminate. 
Contact  an  author ized  Audi  dealer 
immediately. 
(D} Tips 
The  brake  fluid  reservoir  is located under
neath  the  cover. 
202 
Changing  brake  fluid 
Have the  brake  fluid  changed  by an  experienced 
technician . 
Brake  fluid  absorbs  moisture  from  the  air. If the 
water  content  in the  brake  fluid  is too  high,  cor
rosion  in the  brake  system  may  result  after  ape
riod  of  time . The  boiling  po int  of  the  brake  fluid 
will  a lso  decrease  considerably  and  decrease 
braking  performance. 
Therefore , the  brake  fluid  must  be  changed 
every 
two  years . 
Always use new  brake  fluid  which  con
forms  to  Feder-al Motor  Vehicle  Standard  "FMVSS 
116  DOT 4 ". 
The  brake  fluid  reservoir  can  be  difficult  to  reach , 
therefore,  we  recommend that  you  have  the 
brake  fluid  changed by your  author ized 
Audi 
dealer . 
Your  dealer  has  the  correct  tools, the 
right  brake  fluid  and  the  know-how  to do  this  for 
you. 
A WARNING 
- Brake  fluid  is  poisonous. It  must be stored 
only  in the  closed  original  container  out  of 
the  reach  of  children! 
- Brake  fai lure  can  result  from  o ld  or  inappro
priate  brake fluid. Observe  these  precau
tions: 
- Use  only brake  fluid  that  meets  SAE  speci
fi cation 
J 1703  and  conforms  to  Federal 
Motor  Veh icle Standard  116.  Always  check 
with  your  authorized  Audi  dealer  to make 
sure  you  are  using the  correct  brake  f luid . 
The  correct  type  of  brake  f luid is  also  indi
cated  on the  brake  fluid reservoir. 
- The  brake  fluid  must  be  new . Heavy use  of 
the  brakes  can  cause  a  vapor  lock  if the 
brake  fluid  is  left  in the  system  too  long . 
This  can  seriously  affect  the  efficiency  of 
the  brakes  as  well  as  your  safety.  This 
could  result  in an  accident. 
(D Note 
Brake  fluid  will  damage  the  paint of  your  vehi-
cle . 
lilJJ,  
Page 205 of 266

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@ For the  sake  of  the  environment 
Because  of  the  problem  of  proper  disposal of 
brake  fluid  as  we ll as  the  special  toots  re
quired  and  the  necessary  expertise,  we  rec
ommend  that  you  have  the  brake fluid 
changed  by your  authorized  Audi  dealer . 
Battery 
General  information 
Under normal operating  conditions,  the  battery 
in your  Audi  does  not  need  any  maintenance. 
With 
high outside  temperatures  or  long  daily 
drives  we  recommend  that  you  have  the  electro
lyte  level  checked  by an  authorized  Audi  dealer  or 
qualified  workshop.  The electrolyte  level should 
also  be  checked  each  time  the battery is charged 
¢ page  205. 
Have  the  battery  checked  when  you take  your  ve
hicle  in for  serv ice.  You are  well  advised  to re
place  a  battery  t hat  is older  than  5 years. 
Disconnecting  the  battery  terminals 
Some  vehicle  functions (power  window  regula
tors,  for  example)  are  lost  if the  battery  termi nals  are  disconnected.  These  functions  have  to  be 
relearned  after  the  battery  terminals  are  con
nected  again.  To prevent  th is,  the  battery  should 
only  be disco nnected  from  the  vehicle  e lectr ica l 
system  when  abso lutely  necessary  for  repairs. 
Vehicles  not  driven  for  long  periods 
If  you  do  not  drive  your  vehicle  over  a  period  of 
several  days  or weeks,  electrical  components  are 
gradually  cut back  or  sw itched  off.  This  reduces 
energy  consumption  and  maintains starting  ca 
pability  over  a longer  period¢ 
page  173. 
Some  of the  conven ience  functions  may  not  oper
ate,  such  as  the  interior  lights  or  the  power  seat 
adjustment.  The  convenience  functions  will  be 
available  again  when  you  turn  on  the ignition  and 
start  the engine. 
Winter  operation 
During  the  winter  months,  battery  capacity  tends 
to  decrease  as  temperatures  drop . T his  is  be-
Checking  and Filling 
cause  more  power  is also  consumed  while  start
ing,  and  the  headlights,  rear window  defogger, 
etc.,  are  used  more  often. 
Avo id  unnecessary  power consumption,  particu
larly  in  city traff ic or when  traveling  only  short 
distances . Let  your  authorized  Audi  dealer  check 
the  capacity  of the  vehicle  battery  before  winter 
sets  in  ¢ 
page  205. A well charged  battery  will 
not  only  prevent  starting  problems  when  the 
weather  is cold,  but  will also  last  longer . 
(D Tips 
If  your  vehicle  is  left  standing  for  several 
weeks  at  extremely  low temperatures,  the  ve
hicle  battery  should  be  removed and  stored 
where  it  w ill not  freeze.  This will  prevent  it 
from  be ing  damaged  and having  to  be  re
placed. 
Working  on  the  battery 
Be especially  careful  when  working  on  or near 
the  battery. 
The  battery  is  located in the luggage  compart
ment  under  the  floo r.  Before  you  check  anything 
in the  luggage  compartment, 
read  and heed all 
WARNINGS ¢ 
LD.· 
Always  heed  the safety warnings, when  working 
on  the  vehicle  battery  or the  veh icle  electrical 
system  to  prevent  injury. 
The following  WARNINGS  are  very important 
when  working  on  the  battery: 
Always  heed the  following WARNING  SYM· 
BOLS  and safety precautions  when  working on 
the  battery. 
® 
Always  wear eye  protection. 
A 
Battery acid contains  sulfuric acid. Al· 
ways  wear gloves and eye protection . 
@ 
No 
- sparks 
·  flames 
·  smoking. 
203  
Page 206 of 266

Checking  and  Filling 
A 
When  a  battery  is charged,  it  produces hydrogen  gas which  is explosive  and 
could  cause  personal  injury. 
® 
Always  keep the  battery  well out  of  reach 
of  children. 
A WARNING 
Whenever  working  on  the  battery  or  on  the 
electrical  system,  there  is  the  risk of  injury , 
accident  and  even  fire.  Read  and  heed  the  fol
lowing  WARNINGS: 
- Always  wear  eye  protection.  Do not  let  bat 
tery  acid  or  any  lead particles  get  on  your 
skin  or  clothing.  Shield  your  eyes.  Explosive  gases  can  cause  blindness  or  other  injury. 
- Battery  acid  contains  sulfuric  acid.  Sulfuric  acid  can  cause  blindness  and  severe  burns. 
- Always wear  gloves  and  eye  protection . Do 
not  tilt  the  battery  because  acid  could  leak 
out  of  the  ventilation  openings. 
- If you  get  battery  acid  in your  eyes  or  on 
your  skin,  immediately  rinse with  cold  wa
ter  for  several  minutes  and  get  medical  at
tention . 
- If  you  should  ingest any  battery  acid,  seek 
medical  attention  immediately. 
- Do not  expose  the  battery  to  an  open  flame, 
electric  sparks  or  an  open  light . 
- Do not  smoke. 
- Do not  interchange  the  positive  and  nega-
tive  cables . 
- When  working  on  the  battery,  be  sure  not  to 
short-circuit  the  terminals  with  tools  or  oth
er  metal  objects.  This would  cause  the  bat
tery  to  heat  up very  quickly,  which  could 
lead  to  damage  or  explosion  and  personal 
lnJUry. 
- When  a  battery  is charged,  it  produces  hy
drogen  gas  which  is explosive  and  could 
cause  personal  injury. 
- Always  keep  the  battery  well  out  of  the 
reach  of  children. 
- Before  work  is  done  on  the  electrical  sys
tem,  disconnect  the  negative  ground  cable. 
- Before  performing  any  work  on  the  electri
cal  system,  switch  off  the  engine  and  igni
tion  as  well  as  any electrical  equipment.  The 
204 
-
negative  cable  on  the  battery  must  be  dis
connected.  If  you  are  just  going  to  replace  a  light  bulb,  then  it  is enough  to  switch  off 
the  lights. 
- Before  disconnecting  the  battery,  switch  off 
the  anti-theft  alarm  system!  Otherwise  you 
will  set  off  the  alarm . 
- When  disconnecting  the  battery,  first  dis
connect  the  negative  cable  and  then  the 
positive  cable. 
- Before  reconnecting  the  battery,  make  sure 
all  electrical  consumers  are  switched  off . 
Reconnect  the  positive  cable  first  and  then 
the  negative  cable . Never  interchange  the 
cables  - this  could  start  a fire! 
- Never  charge  a frozen  or  a thawed-out  bat
tery. 
It could  explode! If a  battery  has  fro
zen,  then  it  must  be  replaced.  A discharged 
battery  can  freeze  over  at  32°F  (0°C). 
- Make  sure  the  vent  hose  is always  attached 
to  the  opening  on  the  side  of  the battery . 
- Never  use  batteries  which  are  damaged . 
There  is the  danger  of  an  explosion!  Always 
replace  a damaged  battery. 
A WARNING 
California  Proposition  65  Warning : 
- Battery  posts,  terminals  and  related  acces
sories  contain  lead  and  lead  compounds, 
chemicals  known  to the  State  of  California 
to  cause  cancer  and  reproductive  problems. 
Wash  hands  after  handling. 
(D Note 
- Do  not  disconnect  the vehicle  battery  when 
the  ignition  is switched  on  or  when  the  en
gine  is  running,  otherwise,  you  will  damage 
electronic  components  in the  electrical  sys
tem . 
- If your  vehicle  is going  to  stand  for  a  long 
period  of  time  without  being  driven,  protect 
the  battery  from  "freezing",  otherwise  it 
will  be  damaged  and  will  then  have  to  be  re placed .  
Page 207 of 266

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Battery  charging 
Starting  the  engine requires a well charged battery . 
Fig.  1 76 Engine co mpartment:  Co nnectors  for  charger  and 
j u mpe r cab les 
A lways  read and  h eed all  WARNINGS be low 
¢ &. and 
¢&. in Working on  the  battery  on 
page  204 . 
•Turnoff  the  ignition  and  all  electr ica l consum
ers . 
•  Make sure  the  area  is well  vent ilated  when  you 
charge  the  battery . 
•  Open  the  engi ne  hood ~ 
page 193. 
• Open  the  cover on  the  posit ive  pole ¢ fig . 176. 
•  Connec t  the  charger  connecto rs accord ing  to 
the  instructions  to  the 
jump  start  bolts . (Bolts 
under  the  cover=  "positive",  Bo lts  with  hex 
head  = "negat ive"). 
•  Only now  plug  the  mains  lead  for  the  charging 
equipment  into  the  wall  outlet  and  turn  it on 
c> &, . 
• Make sure the  charging  rate  is not  ov er 
30  amps /14 .8 Volt . 
• When  the  ba tte ry is fu lly  charged : Tur n the 
charg ing  equipmen t off  and  remove  the  mains 
l ead  from  the  wall  outlet. 
•  Now  remove  the  clamps  fo r the  cha rging  equ ip-
ment. 
•  Close  the  cover on  the  posit ive  pole. 
•  Close the  hood  ¢ 
page 193 . 
A discharged  battery  can freeze at  temperatures 
of  only 32  °F (0 °C). A llow a frozen  battery  to 
thaw  comp lete ly before  attempting  to  charge  it 
¢ 
& . However , we  recommend  not  us ing  a 
thawed  battery  again  because  the  battery  cas ing 
Checking  and  Filling 
can  be  cracked  due  to  ice forma tion and  can  leak 
battery  acid. 
Battery  charging  (Maximum  charging  rate  of 
30  amps /14.8  Volt) 
When  charging  at low voltages  (e .g . with  a trick
le charger ), 
the  battery  cables  do  not  have  to  be 
disconnected  f irst . T he  battery  caps  should 
not 
be  opened  when  charging  a  battery . 
It is not necessary  to  remove  the  battery  from 
the  luggage  compartment . 
Fast  charging  the  battery  (charging  rate 
above  14 .8  Volts) 
F or techn ical  reasons  do  not  use  a  battery  cha rg
er that  uses  vo ltage  greater  than  14.8  Vo lts  to 
charge  your  vehicle 's  battery . 
_8 WARNING ~ 
Charging  a  battery  can  be  dangerous. 
- Always follow  the  operating  instructions 
provided  by the  battery  charger  manufactur
er  when  charging  your  battery. 
- Never charge  a froze n battery . It  may  ex 
p lode  because  of gas  trapped  in the  ice. Al· 
low  a froze n battery  to  thaw  out  first. 
- Do not  reuse  batter ies  which  were  frozen. 
The  battery  hous ing  may  have  cracked  and 
weakened  when  the  battery  froze . 
- Charge  the  battery  in a well  ventilated  area. 
Keep away  from  open  flame  or  electrical 
spark . Do not  smoke . Hydrogen  gas  generat
ed  by the  battery  is explos ive. 
- To reduce  the  danger  of explosion , never 
connect  or  d isconnect  charger  cables  while 
the  charge r is operating . 
- Fast  charg ing  a  battery  is dange rous  and 
should  only  be  attempted  by a  competent 
technician  w ith  the  proper  equipment. 
- Battery  acid  that  may  spill  during  charging 
should  be  washed  off w ith  a  so lution  of 
warm  wa ter  and  baking  soda  to  neutra lize 
the  acid . 
205  
Page 208 of 266

Check ing  and  F illing 
CJ) Note 
Never  use  a fast  charger  as  a  booster  to  start 
the  engine . This will  serio us ly damage  sensi
tive  electronic  components,  such  as  control 
un its,  relays,  radio,  etc.,  as  well  as  the  battery 
charger . 
Battery  replacement 
The new  ba ttery mu st have  the same  specifica
tions and  dimensions  as  the  original equipmen t 
battery . 
Intelligent  energy  management  in your  vehicle  is 
responsible  for  dist ributing  the  electrical  energy 
throughout  your  vehicle¢ 
page  173. The inte lli
gent  ene rgy ma nagement  system  wi ll keep  the 
eng ine  batte ry charged  better  the n ve hicles  w ith
ou t th is  system . To make  su re the  addit io nal 
e lec trica l energy  is  avail ab le  on ce again  after  you 
h a ve changed  the  battery,  we  recommend  t hat 
you  insta ll batteries  o f the  same  type  an d manu
facture  on ly (t he same  as  those  insta lled  at  the 
time  your  veh icle was  delive red).  Spec ificat ions 
are  listed  on  the  battery  housing.  Your  author
ized  Audi dealer  must  code  the  battery  in the  en
ergy  management  system  to  enab le you  to  use 
the  energy  manageme nt  functions  correctly  after 
replacing  the  battery . 
If  it  is  not  possible  to  use  a  battery  of th is type, 
the  new  battery  must  have  the  same  capacity , 
voltage  (12-volts) , ampe rage,  construct ion  and 
p lug  sealing. 
When  insta lling  the  battery,  make  sure  the  igni
tion  and  all  electrical  consumers  are  tur ned  off . 
@ Note 
Make  sure  the  ventilation  hose  on  the  side  of 
the  batte ry is connected,  othe rw ise  fumes  or 
battery  acid  can  lea k out. 
@ For the  sake of the  environment 
Because  of  the  prob lem  of  proper  disposal  of 
a  battery,  we  recommend  your  author ized 
Audi dea le r  change  the  battery  fo r you.  Bat
t er ies  con ta in su lf ur ic ac id  a nd  lead  a nd  must 
always  be  disposed  of  prop erly i n comp lianc e 
206 
with a ll environmenta l re gu lations . Disposing 
of veh icle  batteries  im properly  is very  danger
ous  to  t he  environment. 
Windshield/headlight* 
washer  container 
Fig. 177 En gin e compar tment: Cove r on the  w inds hield 
a n d head lig ht*  was he r flu id conta iner 
The washer  fluid  co nta iner  is  marked  with  the 
symbol 
Q on  its  cap ~ fig.  177, ¢ page  195, 
fig.  1 71. 
M N 
-N ,.: 
"' m 
..  Before  you  check  anythi ng  i n the  engine  com 
partment, 
always  read  and  heed  all  WARN
INGS ¢ .& in Working in the  engine compart
ment  on page  193. 
..  Lift  the  fi ller  cap  to ngue  to add  w ashe r fl uid . 
You c an f ill the  containe r to  t he  top  . 
..  Press  the  ca p  back on to  the  filler  neck  a fte r fill -
ing  the  contai ner. 
Yo u c an  find  the  reservo ir 
capacity in t he  table  in 
~page  244. 
Clean  water  should  be  used  when  filling  up . If 
possible,  use  soft  wate r to  preve nt  scaling  on  the 
w ashe r jets.  Alw ays  add  a glass  cleane r solu tion 
(wi th fros t protection  in the  win ter) . 
@ Note 
Do n ot  mix engi ne  coolan t  antifree ze  or  any 
o the r ad ditive s t o fill  u p  the  wi ndshi eld  wash
er  reservo ir.  
Page 209 of 266

CX) 
CX) 
-N ,.._ N 
-0 
0 l,L 
CX) 
Wheels 
Wheels and Tires 
General  information 
.,.Check your  tires  regularly  for 
damage  (punctures,  cuts,  cracks 
and  bulges).  Remove  foreign  ob
jects  from  the  tire  tread. 
.,.  If  driving  over  curbs  or  similar 
obstacles,  drive  slowly  and  ap
proach  the  curb  at an  angle. 
.,.Have  faulty  tires  or  rims re
placed  immediately. 
"'Protect  your  tires  from  oil, 
grease  and  fuel. 
.,.M ark  tires  before  removing 
them  so  that  the  same  running 
direction  can  be  maintained  if 
they  are  reinstalled. 
"'Lay  tires  flat  when  storing  and 
store  them  in a  cool,  dry  location 
with  as  little  exposure to light  as 
possible. 
(D Note 
-Please  note  that  summer  and 
winter  tires  are  designed  for 
the  conditions  that  are  typical  in those  seasons.  Audi  recom
mends  using  winter  tires  dur
ing  the  winter  months.  Low 
temperatures  significantly  de crease  the  elasticity  of  summ
er  tires,  which  affects  traction 
Wheels 
and  braking  ability.  If  summer 
tires  are  used  in very  cold 
temperatures,  cracks  can  form 
on  the  tread  bars,  resulting  in 
permanent  tire  damage  that 
can  cause  loud  driving  noise 
and  unbalanced  tires. 
-Burnished,  polished  or 
chromed  rims  must  not  be 
used  in winter  driving  condi
tions.  The surface  of the  rims 
does  not  have  sufficient  corro
sion  protection  for  this  and 
could  be  permanently  dam aged  by road  salt  or  similar 
substances. 
Tire designations 
Fig. 178 T ir e  designations  on the  side -
wall Ill> 
207  
Page 210 of 266

Wheels 
(D Tires for  passenger  vehicles 
(if  applicable) 
P indicat es a tire  for  a passenger 
vehicle.  T indicates  a  tire  desig
nated  for  temporary  use. 
@ Nominal  width 
Nominal  width of  the  tire  be
tween  the  sidewalls in millime
ters.  In general:  the  larger  the 
number,  the  wider the  tire. 
@ Aspect  ratio 
Height/width  ratio  expressed  as  a 
percentage. 
@ Tire  construction 
R indicates  a radial  tire. 
® Rim  diameter 
Size of the  rim  diameter  in  inches. 
@ Load index  and  speed  rating 
The load  index indicates  the  tire's 
load-carrying  capacity. 
The speed  rating  indicates  the  maximum  permitted  speed 
¢ & in 
W inter  tires  on page  222 . 
"EXTRA LOAD", "xl"  or "RF"  indi
cates  that  the  tire is reinforced  or 
is an Extra  Load tire. 
Speed rat- Maximum  permitted  speed 
ing 
p 
up to 93  mph  (1 50  km/h) 
Q up to 99  mph  (160  km/h) 
208 
Speed rat- Maximum  permitted  speed 
Ing 
R 
up to 106  mph  (170  km/h) 
s up to 110  mph  (180  km/h) 
T up to 118  mph  (190  km/h) 
u up to 124  mph (200  km/h) 
H up to 130  mph  (210  km/h) 
V up to 149 mph  (240  km/h)al 
z above 149  mph  (240  km/h)al 
w up to 168  mph  (270  km/h)al 
y up to 186  mph  (300  km/h)al 
a) For tires  above  149  mph (240 km/h), 
tire  manufact urers  sometimes  use the 
code  "ZR". 
(j) US DOT  number  (TIN)  and 
manufacture  date 
The manufacture  date  is listed  on 
the  tire  sidewall  (it  may  only  ap
pear on the  inner  side of  the  tire): 
DOT ...  2216  ... 
means,  for example, that  the  tire 
was  produced  in the  22nd  week of 
the  year  2016. 
@ Audi  Original  Tires 
Audi  Original  Tires  with the  desig
nation  "AO" or "RO"  have been 
specifically  matched to  your Audi. 
When  u sed  correctly,  these  tires 
meet  the  highest  standards  for 
safety  and  handling.  An  author
ized Audi  dealer  or  authorized 
Audi  Service  Facility  will  be  able 
to  provide  you with  more  infor
mation.