Page 233 of 294

M N <( (.J 
'SI: ,...., \!) ..,., 
N \!) ,...., 
(D Note 
Never  use  a fast  charger  as  a  booster  to  start 
the  engine . This w ill seriously  damage  sensi
tive  electron ic components,  such  as  control 
units,  relays,  radio,  etc.,  as  well  as  the  battery 
charger. 
Battery  replacement 
The new  battery  must  have  the same specifica
tions  and  dimensions  as the  original  equipment 
battery . 
Intelligent  energy  management  in your  vehicle  is 
responsible  for  distributing  the  electrica l energy 
throughout  your  vehicle 
c:> page  194. The  intell i
gent  energy  management  system  will  keep  the 
engine  battery  charged  better  than  vehicles  w ith
out  this  system . To  make  sure  the  additional  elec
tr ical  energy  is available  once again  after  you 
have  changed  the  battery,  we  recommend  that 
you  install  batteries  of the  same  type  and  manu facture  only  (the  same  as  those  installed  at  the 
time  your  veh icle was  delivered).  Specif ications 
are  listed  on  the  battery  housing. Your author
ized  dealer  must  code  the  battery  in the  energy 
management  system  to  enable  you  to  use  the  en
e rgy  management  functions  correctly  after  re
p lacing  the  battery. 
The  new  battery  must  have  the  same  capacity , 
voltage  (12-volts),  amperage,  construction  and  plug  sealing . 
When  installing  the  battery,  make  sure  the  igni
tion  and  all  electrical  consumers  are  switched  off. 
Make sure  the  ventilation  hose  on  the  s ide  of 
the  battery  is connected,  otherwise  fumes  or 
battery  acid  can  leak  out. 
- Vehicles  with  the  Start-Stop-System*  are  equipped  with  a  special  cycle-proof  AGM battery.  Installing  a  different  type  of  bat
tery  can  cause  problems  in the  vehicle  elec
trical  system.  When  replacing  the  vehicle 
battery,  always  install  one  with  the same 
specifications  as  the original  battery. 
Checking  and  Filling 
{® For the  sake of  the  environment 
Because  of the  prob lem  of  proper  disposal  of 
a  battery,  we  recommend  your  authorized 
Audi dealer  change  the  battery  for  you.  Bat
teries  contain  sulfur ic acid  and  lead  and  must 
always  be  disposed  of  properly in compliance 
with  all  environmental  regulations.  Disposing 
of vehicle  batteries  improperly  is very  danger
ous  to  the  environment. 
Windshield/headlight 
washer  container 
Fig. 194 Engine compa rtment:  cover on the  winds hie ld 
and head lig ht*  washer  fluid reservoir 
The  washer  fluid  container  is  marked  with  the 
symbol 
ip on  its cap c:>fig.  194,  c:>page  220, 
fig.  188. 
..  Before  you  check  anything  in  the engine  com 
partment, 
always  read and heed  all WARN
INGS c:> .&. in  Working  in  the  engine  compart
ment  on page  218. 
..  Lift the  filler  cap  tongue  to  add  washer  fluid. 
You can  fill  the  container  to  the  top . 
..  Press  the  cap  back  onto  the  filler  neck  after  fill-
ing  the  container . 
You can  find the reservoir 
capacity in the  table  in 
c:>page272. 
Clean  water  should  be  used when  filling  up.  If 
possible,  use  soft  water  to  prevent  scaling  on 
washer  jets. Always add  a  g lass  cleaner  solution 
(with  frost protection  in  the winter) .  ..,. 
231  
         
        
        
     
        
        Page 234 of 294
Checking  and  F ill in g 
CJ) Note 
Do not  mix  engine  coolant  antifreeze  or any 
other  add itives to  fi ll up the  windshie ld wash
er rese rvoir. 
232  
         
        
        
     
        
        Page 235 of 294

Wheels 
Wheels  and  Tires 
General  information 
.,.Che ck 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. 
"'Protec t your  tires  from oil, 
grease  and  fuel. 
.,.Ma rk 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  tem
peratures,  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. 195 T ir e  designations  on the  sid e-
wall  ,.. 
233  
         
        
        
     
        
        Page 236 of 294

Wheels 
(D Tires for  passenger  vehicles 
(if  applicable) 
P indicates  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 
Winter  tires  on page  248. 
"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  (150  km/h) 
Q up to 99  mph  (160  km/h) 
234 
Speed rat- Maximum  permitted  speed 
Ing 
R up t o 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)a> 
z above 149  mph  (240  km/h)a) 
w up to 168  mph  (270  km/h)a) 
y up to 186  mph  (300  km/h)a) 
a) For  tires  above  149  mph  (240  km/h), 
tire  manufacturers  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  ... 2214  ... 
means,  for  example,  that  the  tire 
was  produced  in  the 22nd  week  of 
the  year  2014. 
@ Audi  Original  equipment 
tires 
Audi  Original  equipment tires 
with  the  designation  "AO" or "RO" 
have been  specially matched  to 
your  Audi.  When  used  correctly, 
these  tires  meet  the  highest  standards  of  safety  and  handling. 
Your authorized  Audi  dealer  will 
be happy  to  provide  more  infor
mation.  
         
        
        
     
        
        Page 237 of 294

® Mud  and  snow capability 
"M/S"  or "M+S" indicates  the  tire 
has characte ris tics that  make  it 
suitable  for  driving  on  mud  and  snow . 
& indica tes a winter  tire. 
@ Composition  of the  tire  cord 
and  materials 
T he number  of  plies  indicates  the 
number  of  rubber ized fabric  lay
ers in the  tire . In  general:  the 
more  layers,  the  more  weight  a 
tire  can carry.  Tire  manufacturers 
must  also  specify  the  mater ials 
used  in the  ti re. These include 
stee l,  nylon,  polyester  and  other 
materials. 
@ Maximum  permitted  load 
This  number  indicates  the  maxi
mum  load  in  kilograms  and 
pounds  that  the  tire  can carry . 
@ Uniform  tire  quality  grade 
standards  for  treadwear, 
traction  and temperature  resistance 
Treadwear , traction  and tempera
ture  ranges 
c::::> page 250 . 
@Running  direction 
The arrows  ind icate  the  running 
direction  of  unidirect ional  tires. 
You must  always  follow  the  speci- fied  running  direction 
c::::> page 259. 
€3) Ma
ximum  permitted 
inflation  pressure 
Whe els 
This  number  indicates  the  maxi
mum  pressure  to  which  a tire  can 
be inflated  unde r normal  operat
ing  conditions . 
Glossary of tire and  loading 
terminology 
Accessory weight 
means  the  combined  weight  (in 
excess of  those  standard  items 
which  may  be replaced)  of  auto matic  transmission,  power  steer
ing,  power  brakes,  power  win
dows,  power  seats,  radio,  and 
heater,  to  the  extent  that  these 
items  are available  as factory-in 
stalled  equipment  (whether  in
stalled  or  not). 
Aspect ratio 
means  the  ratio  of  the  height  to 
the  width  of  the  tire  in  percent.  Numbers  of  55  or  lower  indicate  a 
low  s idewall  for  improved  steer
ing  response  and  better  overall 
handling  on  dry  pavement . .,. 
235  
         
        
        
     
        
        Page 238 of 294

Wheels 
Bead 
means  the  part  of  the  tire  that  is 
made  of  steel  wires,  wrapped  or 
reinforced  by  ply  cords  and  that  is 
shaped  to  fit  the  rim . 
Bead separation 
means  a  breakdown  of  the  bond 
between  components  in the  bead. 
Cord 
means  the  strands  form ing  the 
plies  in the  tire. 
Cold tire  inflation  pressure 
means  the  tire  pressure  recom
mended  by the  vehicle  manufac
turer  for  a tire  of  a designated 
size  that  has  not  been  driven  for 
more  than  a  coup le  of  miles  (kilo
meters)  at  low  speeds  in the  three 
hour  period  before  the  tire  pres
sure  is  measured  or  adjusted . 
Curb weight 
means  the  weight  of  a  motor  ve
hicle  with  standard  equipment  in
cluding  the  maximum  capacity  of 
fuel,  oi l, and  coolant , air  condi 
tioning  and  additional  weight  of  optional  equipment. 
E x tra  load tire 
means  a  tire  des igned  to  operate 
at  higher  loads  and  at  higher  in-
236 
flation  pressures  than  the  corre
sponding  standard  tire . Extra  load 
tires  may  be  identified  as  "XL", 
"xl",  "EXTRA LOAD", or  "RF" on 
the  sidewall. 
G ross A xle Weight  Rating 
("GAWR ") 
means  the  load-carrying  capacity 
of  a  single  axle  system , measured 
at  the  tire-ground  interfaces . 
Gross Vehicle Weight  Rating 
( "GVWR" ) 
means  the  max imum  total  loaded 
weight  of  the  vehicle . 
Groove 
means  the  space  between  two  ad
jacent  tread  ribs . 
Load rating (code ) 
means  the  max imum  load  that  a 
tire  is rated  to  carry  for  a  given  in
flation  pressure . You may  not  find 
this  information  on  all  tires  be cause  it  is not  required  by  law. 
Ma ximum  load  rating 
means  the  load  rating  for  a tire  at 
the  maximum  permissible  infla
tion  pressure  for  that  tire . 
Maximum  loaded vehicle 
w eight 
means  the  sum  of: ...  
         
        
        
     
        
        Page 239 of 294

(a) Curb  weight 
(b) Accessory  weight 
(c) Vehicle  capacity  weight,  and 
(d)  Product ion  options  weight 
Maximum  (permissible) 
inflation  pressure 
means  the  max im um  cold  infla
tion  pressu re  to  which  a  tire  may 
be  inflated . Also  called  "ma xi
mum  inflation  pressure ." 
Normal  occupant weight 
means 150 lbs . (68 kilog rams) 
times  the  number  of  occupants 
seated  in the  veh ic le  up  to  the  to
tal  seating  capacity  of  yo ur vehi
c le. 
Occupant distribution 
means  d istr ibution  of  occupants 
in  a vehicle. 
Outer  diameter 
means  the  overall  diameter  of  an 
inflated  new  tire . 
Overall width 
means  the  linear  dis tance  be
tween  the  exter iors  of  the  side
walls  of  an  inflated  tire , including 
elevations  d ue to  labe ling,  deco
rations , or  protective  bands  or 
ribs . 
Whee ls 
Ply 
means  a  layer  of  rubbe r-coated 
parallel  cords . 
Production  options  weight 
means  the  comb ined  weight  o f 
those  installed  regular  production 
options  weighing  over  5  lbs . (2 .3 
kg)  in excess  o f those  s tandard 
items  which  they  re place , not  pre 
viously  conside red  in c urb weight 
or  accessory  weight,  including  heavy  duty  brakes,  ride  levelers, 
roof  rac k, heavy  d uty  batte ry, and 
specia l trim . 
Radial  ply tire 
means  a  pneumat ic t ire  in which 
the  ply  cords  that  ex tend  to  the 
beads  are  la id  at  substantially  90 
degrees  to  the  centerli ne  of  the 
tread . 
Recommended  inflation 
pressure 
see ~ page  2 36,  Cold tire  infla
tion  pressure . 
Reinforced tire 
means  a tire  designed  to  operate 
at  higher  loads  and  at  h igher  in
flat ion  pressures  than  the  corre
spon ding  standard  tire . Rein
f orced  tires  may  be  identified  as 
23 7  
         
        
        
     
        
        Page 240 of 294

Wheels 
"XL"  "xl" "EXTRA LOAD" or  "RF" I I  I 
on  the  sidewal l. 
Rim 
means  a  metal  support  for  a  tire 
or  a tire  and  tube  assembly  upon 
which  the  tire  beads  are  seated . 
Rim diameter 
means  nominal  diameter  of  the 
bead  seat. If you  change  yo ur 
wheel  size , you  w ill have  to  pur
chase  new  tires  to  match  the  new  rim  diameter . 
Rim size designation 
means  rim  diameter  and  width. 
Rim width 
means  nomina l distance  between 
rim  flanges . 
Sidewall 
means  that  port ion  o f a t ire  be
tween  the  tread  and  bead . 
Speed rating  (letter  code) 
means  the  speed  at  which  a tire  is 
designed  to  be  driven  for  extend 
ed  periods  of  t ime.  The  rat ings 
range  from  93  mph  (150  km/h) 
to  186  mph  (298  km/h) 
¢ table 
on page  234 . 
You may  not  find 
this  information  on  all  tires  be
cause  it  is  not  required  by  la w. 
238 
The  speed  rating  letter  code , 
where  applicable , is  mo lded  on 
the  tire  sidewall  and  indicates  the  maximum  permiss ible  road 
speeds 
¢ .&. in  Winter  tires  on 
page  248. 
Tire  pressure monitoring 
system* 
means  a  system  that  detects 
when  one  or  mo re  of  a  ve hic le's 
tires  are  under inflated  and  illumi 
na tes  a  low  tire  p ressu re warning 
tellta le . 
Tread 
means  that  portion  of  a tire  that 
comes into contact w ith the  road. 
Tread separation 
means  pu lling  away  of  the  tread 
from  the  t ire  carcass. 
Treadwear  indicators  (TWI) 
means  the  projections  wi thin  the 
principal  grooves  designed  to  give 
a visua l indication  of  the  deg rees 
of  wear  of  the  tread . See 
¢ page  242 , Treadwear  indicator 
for  mo re  information  on  measur
ing  t ire  wear.