AUDI TT COUPE 2016 User Guide
Page 11 of 322
Downloaded from www.Manualslib.com manuals search engine indicator light will turn on ¢page 16. The bot
tom LED blinks  red when the fuel level  is very 
low. 
The 
fuel tank capacity of your  vehicle  is listed  in 
the Technical  Data section¢ page 299. 
0 Note 
Never drive until the tank is completely emp
ty. 
The irregular suppl y of fuel that results 
from that can cause engine misfi res. Uncom
busted fuel will then enter the exhaust sys
tem. Th is  can cause overheating and damage 
to the catalytic converter. 
Indicator Lights 
Description 
The indicator lights in the instrument cluster 
blink or turn on.  They  indicate functions or mal
functions. 
Wit h some ind icator lights, messages may ap
pear and warning signals may sound. The indica 
tor lights and messages in the display can be cov
ered by other displays. To show them again, se
lect the tab for the indicator lights and messages 
using the multifunction steering wheel 
¢page 19. If there are several malfunctions, 
you can display them one at a time using the 
thumbwheel. 
Some indicators lights in the display  can turn on 
in several colors. 
Overview 
Some indicator lights turn on briefly as a function 
check when you switch the ignition on. These sys
tems are marked with a./ in the following tables. 
I f 
one of these indicator lights does not turn on, 
there is  a malfunction  in that system. 
Red indicator lights ~~~~~~~~~~~~~~-
US A  models: 
Brake system 
¢page 11 
Instruments and indicator lights 
Canada models: 
Brake system 
¢page 11 
USA models: 
Electromechanical parking  brake 
¢page 12 
Canada models: 
Electromechanical parking  brake 
¢page 12 
Cooling system 
¢page 12 
Engine oil pressure 
¢ page 13 
Alternator 
¢page 13 
Engine stop while  driving 
¢page 13 
Front safety belt 
¢page 13 
Electromechanical steering ./ 
¢ page 90 
Steering lock 
¢page 13 
Central indicator light 
¢page 14 
Engine start system 
¢page 14 
USA models: 
Speed warning system* 
¢page 72 
Canada models: 
Speed warning system* 
¢page 72 
Transmission malfunction 
¢page 70 
Rear spoiler 
¢page 91 
Yellow  indicator lights 
USA models: safety systems ./ 
¢page 15 
Canada models: safety systems ./ 
¢page 15 
9   
Page 12 of 322
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Electronic Stabilization Control (ESC) 
../¢page 14 
Electronic  Stabilization Control (ESC) 
../¢page 14 
USA models: anti-lock braking  sys
tem (ABS)../ 
¢page 14 
Canada mod els : anti- lock  braking 
system 
(ABS)  ../ 
¢page 14 
• Brake 
p
ads 
¢page 15 
10 
Elect romechan ical park ing  bra ke 
¢ page 12 
Tire  pressure monitoring system../ 
¢page268 
Tire  pressure monitoring  system 
¢page268 
Engi ne control 
¢ page 15 
System indicator  light (MIL) 
¢page 15 
Engine  speed limitation 
¢page 15 
Engine oil level 
¢ page 15 
Engine oil senso r 
¢page 16 
Battery  charge 
¢page 13 
Tank  system 
¢page 16 
Was her fluid level 
¢page 16 
W indshield  wipers 
¢ page 16 
Remote control key 
¢page 60 
Battery  in remote control key 
¢page27 
Bulb failure indicator* 
¢ page 16 
Head light range control system 
¢page 16 
Adaptive light* 
¢ page 17 
Light/rain sensor * 
¢page 17 
Transmission 
¢ page 70 
Steering  lock 
¢page 13 
Engine  start  system 
¢ page 14 
Central indicator light 
¢page 14 
Electromechanical steering../ 
¢ page 90 
Dampe r control* 
¢ page 17 
Rear spoiler 
¢page 91 
Speed warning  system* 
¢page 72 
Other  indicator lights 
•
~ Turn signals 
~ !!11!.i ¢page 17 
CRUISE 
USA models: cruise  contro l system* 
¢ page 72 
Canada models: cruise  contro l sys
tem* 
¢ page 72 
Active  lane  assist* 
¢ page 75 
Convenie nce key 
¢page 60 
Electromechanical  parking brake 
¢ page 12 
Active  lane assist* 
¢page 75 
Audi  side ass ist* 
¢page 79 
• Transmission 
.W¢page70   
Page 13 of 322
Downloaded from www.Manualslib.com manuals search engine Electromechanical parking brake 
c::>page 12 
Rear safety belt./ 
c::>page 17 
Rear safety belt./ 
c::> page 17 
High beams 
c::> page 37 
BRAKE/((D) Brake  system 
If this indicator light turns on, there is a malfunc
tion in the brake  system. 
.. (USA models)  /.  (Canada  models) 
Brakes:  stop vehicle  and 
check brake fluid level 
Stop the vehicle  and check the brake fluid level. 
See an authorized  Audi dealer  or authorized  Audi 
Service  Facility 
for assistance if necessary. 
.. (USA models)  /. (Canada  models) 
Warning! 
No brake  booster 
If brake assist  (brake  booster)  is not working,  you 
have to use much more force when  braking  the 
vehicle. 
See an authorized  Audi dealer or author
ized  Audi  Service  Facility 
for assistance. 
.. (USA models)  /. (Canada  models) 
Brakes:  malfunction! 
Stop vehicle safely 
If the ABS indicator light fJ]l (USA models) I 
¢G» (Canada models), the ESC indicator light J;]. 
and the brake system  indicator light .. (USA 
models) I. (Canada models) turn on  and this 
message  appears, then the ABS, ESC and braking 
distribution are malfunctioning c::> .&.. 
Drive to your  authorized  Audi dealer or author
ized  Audi  Service  Facility immediately 
to have the 
malfunction  corrected c::> .&.. 
.. (USA models) /. (Canada  models) Park
ing brake:  malfunction! Safely stop vehicle. 
Please  contact 
Service 
-If the indicator light and the message  appear 
when the vehicle  is stationary  or after switch
ing  the  ignition  on, check if you can release the 
parking brake. If you cannot  release the park
ing brake, see your  authorized  Audi dealer  or 
Instruments and indicator lights 
authorized  Audi Service  Facility. If you can re
lease 
the parking  brake and the message still 
appears, see an authorized  Audi dealer or au
thorized  Audi Service  Facility immediately 
to 
have the malfunction  corrected. 
-
If the indicator light and  message  appear while 
driving, 
the hill start assist  or emergency  brak
ing  function  may be malfunctioning. 
It may not 
be possible to set  the  parking  brake or release 
it once it has been set. Do not park your  vehicle 
on  hills  and 
see an authorized  Audi dealer  or 
authorized  Audi Service  Facility 
for assistance. 
(USA models): if the .. and Ill indicator 
lights turn on together, have the brake  system 
checked  immediately  by 
an authorized Audi deal
er or  authorized  Audi Service  Facility 
c::> page 15. 
There is also a warning  tone when the lights turn 
on . 
.&. WARNING 
-Read and follow the  warnings  in 
c::> page 236, Working in the engine com
partment before opening the hood and 
checking  the brake 
fluid level. 
-
If the brake  system  indicator light does not 
turn off or it turns on while  driving, the 
brake fluid level in the  reservoir is too low, 
and 
this increases the risk of an accident. 
Stop 
the vehicle  and do not continue  driv
ing. 
See an authorized  Audi dealer or au
thorized  Audi Service  Facility 
for assistance. 
-
If the brake  system  indicator light turns on 
together with the ABS and ESC indicator 
lights, 
the ABS/ESC regulating  function may 
be malfunctioning.  Functions that stabilize 
the vehicle are no longer  available.  This 
could  cause  the rear 
of the vehicle to 
swerve,  which increases the risk that the ve
hicle 
will slide.  Drive carefully to the nearest 
authorized  Audi dealer 
or authorized  Audi 
Service  Facility and have 
the malfunction 
corrected. 
11   
Page 14 of 322
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PARK/(®l/~ Electromechanical parking 
brake 
If the -(USA models) I. (Canada models) 
indicator light turns on, the parking  brake was 
set. 
-(USA models)  /. (Canad a  models) Park
ing brake: caution! Vehicle parked t o o steep 
If the indicator light blinks and the message ap
pears, there is not enough braking power to se
cure 
the vehicle.  The brakes have overheated. The 
vehicle  could roll away  even on a 
small incline . 
-
(USA mode ls) I. (Canada models) 
Please press brake p edal to re lease parking 
brake 
T o release the park ing  brake, press the brake 
pedal and press the Iii button at the same time, 
or start driving  with hill start assist¢ page  62, 
Starting  from a stop. 
llJ Parking brake: malfunction! See owner's 
manual 
There is a  malfunction in the parking  brake. Drive 
to an authorized Audi dealer or authorized Audi 
Service  Facility 
immediately to have the malfunc
tion corrected. 
Im Parking brake: malfunction! Safe ly stop ve
hicle . Please contact Service 
There  is a malfunction 
in the parking  brake. Drive 
to an authorized Audi dealer or authorized Audi 
Serv ice  Facility  i
mmediately to have the malfunc
tion  corr
ected. 
llJ;!:t:)jJJJ~ (USA models) I Im (Canada models) 
Please release parking brake. 
Release the parking  brake if this message ap
pears. 
!f1;!:t:l;fJJj (USA mod els) I K@j (Canada models) 
Park ing  brake auto release unavailable 
If this message appears, press the brake pedal 
first and then release the parking  brake. 
llJ;!:t:)j(13~ (USA models) I Im (Can ad a models) 
Parking brake:  caution! V ehicle  parked too 
steep 
12 
If the indicator light blinks  and the message ap
pears, there is not enough braking  power to se
cure 
the vehicle.  The brakes have overheated. The 
vehicle  could roll away  even on a 
small incline. 
11;1;!:t:ljtJ:O ( U SA models) I [@j (C anada models) 
Park in g brake: applied 
If this message appears, press the brake pedal 
first and then release the parking  brake if neces
sary. 
(D Tips 
For additional information  on the parking 
b rake, 
refer to ¢page 61. 
- L Cooling syste m 
• Turn off engine and check coolant level 
T he  coo l
ant level is too low. 
Do not continue driving  and switch the engine 
off. Check the coolant level ¢ page 242. 
-If the coolant level is too low, add coolant 
¢page 242. Only continue driving  once the in
dicator light turns off. 
• Coolant temperature: too high.  Let  eng ine 
run  with vehicle stationary 
Let the engine run at idle for a few minutes to 
cool  off, until the indicator light turns off. 
-
If the indicator light does not turn off, do not 
conti nue  driving the vehicle. See an authorized 
Audi dealer or authorized  Audi  Service  Facility 
for assistance. 
A WARNING 
[.=-
-Never open the hood  if you  can see or hear 
steam or coolant escaping from the engine 
compartment. This  increases the risk of 
burns. Wait until  you no longer see or hear 
steam or coolant escaping. 
- The 
engine compartment in any  vehicle  can 
be  a 
dangerous area. Stop the engine and 
allow  it to cool before working in the engine 
compartment. Always  follow the informa
tion found in ¢page 236, Working in the 
engine  compartment.   
Page 15 of 322
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G'. CX) 
..... ID IJ' ..... ID ..... 
CD Note 
Do not continue driving if the. indicator 
light turns on -this increases the risk of en
gine damage. 
~ Engine oil pressure 
• Turn off engine. Oil pressure too low 
Stop the engine and  do not continue  driving. 
Check the engine oil level~ page 240. 
-If the engine oil level is too low, add engine oil 
~page 240. Only continue driving once the in
dicator 
light turns off. 
-
If the engine  oil level is correct and the indica 
tor light still blinks, turn the eng ine off and do 
not continue  driving. See an authorized Audi 
dealer or authorized  Audi Service Facility for as
sistance. 
Tips 
The  oil pressure warning is not an oil  level  in
dicator.  Always check 
the oil level  regularly. 
t:3 Alternator/battery 
• Electric system: malfunction! Battery is not 
being charged 
There is a malfunction in the alternator or the ve 
hicle  electrical  system. 
Drive 
to an  authorized Audi dealer or author ized 
Audi Service  Facility immediately.  Turn off all un
n
ecessar y electrica l equipment because  it will 
drain 
the battery. See your authorized Audi  deal
er or authorized Audi Service Facility  if the bat
tery charge level is too low. 
f•l Electrical system: low battery charge. Please 
turn on ignition 
The starting ability may be impaired. 
If this message turns off after a little while, the 
battery charged enough while driving. 
If the message does not turn off, have and au
thorized  Audi 
dealer or authorized Audi Service 
Facility repair the malfunction . 
Instruments and indicator lights 
~Engine stop while driving 
• Engine stopped: no power steering or brake 
servo possible 
There is a malfunction in the engine or in the fuel 
supply system. 
More  force 
is needed to steer and brake the mov
ing  vehicle 
when the engine is stopped. If the ve
hicle 
is rolling,  try to bring it to a stop off to the 
side from moving  traffic. See an authorized Audi 
dealer or authorized Audi Service Facility for as
sistance. 
.& WARNING r-= ____, 
If the engine stops while  driving,  you will 
need 
to use more f orce to brake the vehicle. 
This  i
ncreases th e risk of an  acc ident. There 
will  still 
be power steering if the ignition is 
switched on  while the vehicle is rolling and 
there is sufficient battery charge.  Otherwise, 
you 
must use greater force when steering. 
~ Front safety belt 
The . indicator light stays on until the driver's 
and front passenger's• safety belts are fastened . 
Above  a certain 
speed, there will  also be a warn
ing 
tone. 
© Tips 
For  additional  information on safety belts, re
fer 
to~ page 180. 
@-e Steering lock 
• Steering: malfunction! Please stop vehicle 
There  is  a  malfunction 
in the electronic steering 
lock. You cannot turn the ignition  on. 
Do not tow your vehicle  because  it cannot be 
steered. See an authorized Audi dealer or author
ized Audi Service Facility for assistance. 
ml Steering lock: malfunction! Please contact 
Service 
There 
is a  malfunction in the electronic steering 
lock . ~ 
13   
Page 16 of 322
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Drive to an authorized  Audi dealer or authorized 
Audi  Service  Facility  immediately 
to have the 
malfunction  corrected. 
A WARNING 
Do not tow your vehicle  when there is a mal
function in the electronic  steering lock -this 
increases the risk of an accident. 
~Central indicator light 
If the. or II indicator light turns on, check 
the message  in the instrument cluster. 
©-Engine start system 
• Engine  start sy ste m : malfunction!  Please 
c ontac t Service 
Do not switch the ignition off because  you may 
not be able to switch it on again. 
Drive 
to an  authorized  Audi dealer or authorized 
Audi  Service  Facility  immediately 
to have the 
malfunction  corrected. 
ml Engine  start system:  malfunct ion ! Please 
conta ct  Serv
ice 
There is a  malfunction  in the  engine  starting sys
tem. 
Drive 
to an authorized  Audi dealer  or authorized 
Audi  Service  Facility immediately 
to have the 
malfunction  corrected. 
nlfJ Electronic stabilization control (ESC) 
and (§)anti-lock braking system (ABS) 
If the DJ i ndicator light blinks  while  driving, the 
ESC or ASR (Anti-Slip  Regulation) is actively regu
lating. 
If the GI indicator light turns on, the system  has 
switched 
the ESC off. In this case, you  can switch 
the ignition off and  then  on to switch the ESC on 
again.  The indicator 
light turns off when the sys
tem is functioning  fully. 
Stabili za tion  contro l (ESC): sport . Warning! Re
duc ed  stability 
14 
If the II indicator light turns  on, ESC sport 
mode  was switched  on using 
the I-" OFFI button 
¢page 88. You can turn the ESC on again  by 
press 
the l.e OFFI button again. 
Stabilization  con trol (ESC): off. Wa rn ing ! Re· 
duced  stability 
If them indicator light turns  on, the ESC was re
stricted 
or switched off using the 1.n OFFI button 
¢page 88. The  message ESC OFF also  appears. 
You can turn  the ESC on again  by press  the 
j.P, OFFI button again. 
The  system  switches  on when 
the ignition is 
swi tched  on. The. indicator light turns off 
when the system  is  functioning  fully. 
Stabilization  control (ESC): malfunction! See 
owner's manual 
Stabilization  control 
(ESC/ ABS):  malfunction! 
See owner's  manual 
ABS: malfunct ion!  See owner 's manua l 
If the J;.j indicator light and the ABS indicator 
light~ (USA models) I rlJ (Canada models) 
turn on and  this message  appears, there is a mal
function in the ABS system or electronic  differen
tial lock. This also causes  the ESC to malfunction. 
The  brakes 
still function with their normal  power, 
but ABS is not active. 
Drive 
to an authorized  Audi dealer  or authorized 
Audi  Service  Facility  immediately 
to have the 
malfunction  corrected. 
A WARNING 
If  t he .. (USA models) •  (Canada mod
e l
s) bra ke  system  indicator light turns on to
gether with the ABS and ESC indicator lights, 
the ABS/ESC regulating  function may have 
fai led.  Functions 
that stabilize the vehicle  are 
no  longer  available.  This could  cause 
the vehi
cle 
to swerve,  which increases the risk that 
the vehicle will slide. Drive carefully to the 
nearest  authorized  Audi dealer or authorized 
Audi  Service  Facility and 
have the malfunction 
corrected.   
Page 17 of 322
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a: 
@ Tips 
For additional information on ESC and ABS, 
refer to ¢page 87. 
BRAKE!<O; Brake  pads 
.. (USA models) I rl] (Canada models) 
Brake  pads! 
If the warning light turns on, immediately  con
tact your authorized Audi dealer or authorized 
Audi  Service  Facility 
to have all brake pads in
spected . Both  sets 
of brake  pads on an axle must 
always be replaced at the same  time. 
A WARNING 
Driving with bad brakes can cause  a collision 
and  serious  personal  injury. 
-
If the rl] warning light or the .. warning 
light l) with the message Brake pads! 
comes  on in the instrument cluster  display, 
immediately  contact your authorized  Audi 
dealer 
or authorized  Audi Service  Facility to 
have all brake pads checked or replaced if 
necessary. 
ffl;f !f Safety systems 
-1 
The II (USA models) Im (Canada models)  indi
cator 
light monitors the safety  systems. 
Safety system 
If the II (USA models) Im (Canada models)  in
dicator 
light turns  on or blinks,  there is a mal
function  in a safety  system. 
Drive 
to an authorized  Audi dealer or authorized 
Audi  Service  Facility immediately 
to have the 
malfunction  corrected. 
A WARNING 
-Have the safety systems  inspected  immedi-
ately.  Otherwise,  there 
is a risk that the  sys
tems may not activate  during a collision, 
which  increases 
the risk of serious  injury or 
death. 
co ..... <J:) Lil 
..... 
:=: 1) - : USA models only 
Instruments and indicator lights 
~ Engine  control 
If the II indicator light turns on if there is a mal
function  in 
the engine control. 
Drive  slowly 
to an authorized  Audi dealer or au
thorized  Audi Service  Facility 
to have the engine 
checked  . 
o System  indicator light (MIL) 
The system  indicator light (MIL) is part of the On 
Board Diagnostic  system (OBD II). The ¢.j sym
bol turns on when the ignition is switched  on and 
turns 
off again  once the engine is started  and 
running 
at a  steady  idle speed.  This indicates that 
the MIL is functioning  correctly. 
The  indicator 
light turns  on if there is a malfunc
tion in the  engine  electronics. See an authorized 
Audi  dealer  or authorized  Audi Service  Facility 
to 
have the malfunction  corrected. 
For  additional 
information, refer to¢ page 17. 
!?\Engine speed limitation 
Applies to vehicles  wit h  en gi ne  speed  lim itation 
(I! Maximum  engine speed: XXXX rpm 
The engine  speed is automatically limited to the 
speed displayed  in the  driver information system. 
This  protects 
the engine from overheating. 
The  engine  speed 
limitation deactivates  once the 
engine is no longer  in the critical temperature 
range and you  have  released the accelerator  ped
al  once. 
If the engine  speed limitation was activated  by 
an  engine 
control malfunction, the II indicator 
light also  turns  on. Make  sure the engine  speed 
does 
not go  above  the speed  displayed, for exam
ple  when  downshifting.  Drive 
to an authorized 
Audi  dealer  or authori z
ed Audi Service  Facility im
mediately to have the malfunction  corrected. 
~ Engine oil level (min.) 
II Please check oil level 
15   
Page 18 of 322
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You may continue  driving for the time being. 
Check the engine oil  level as soon as possible 
<:!)page 239. 
-If the engine oil  level is too low, add engine o il 
<:!)page 240. 
-If the engine oil  level is correct and the indica
tor light still turns on, drive  at  low engine 
speed to an authorized Audi dealer or author
ized  Audi  Service  Facility. 
X;:';,,, Engine oil sensor 
• Oil le vel  system:  malfunction!  Please con· 
tact  Service 
The sensor to check the engine oil  level has 
failed. Drive to an authorized  Audi deale r or a u
thorized Audi  Service  Facility immediately to have 
the malfunction corrected. 
[JlJ Tank system 
D Ple a se  r efuel 
If the indicator light turns on for the first time 
and the message appears, there are about 1.9 
gal  (7 L) of fuel left in the tank. 
D Plea se  refuel  immediately 
If  t he indicator lig ht  turns on the message ap
pears, the fuel tank is almost empty. Refuel the 
vehicle immediately. 
D Tank sy ste m : malfun ction!  Please  contact 
Servic e 
If the indicator light  t urns on and this message 
appears, there is  a malfunction  in the tank sys
tem. 
Drive to an author ized  Audi dealer or authorized 
Audi Serv ice  Facility  immediately to have th e 
malfunction corrected. 
@l For the sake of the environment 
Fuel should never enter the sewer system or 
come into contact w ith the ground. 
(Di Tips 
More  information on refueling is  available on 
page¢ page 232. 
16 
· ,_Washer fluid level 
m Pleas e add  washer  fluid 
Fill the washer fluid for the windshield washer 
system and the headlight washer system* when 
the ignit ion is switched off<:!) page 248. 
\9 ! Windshield wipers 
@Windshield wiper s: malfunction!  Plea se 
conta ct  Servi ce 
There is  a malfunction with the windshield wip
e r
s. 
Drive to an authorized Audi dealer or authorized 
Audi  Service  Facility immediately to have the 
malfunction corrected. 
-:q>.-Bulb failure  indicator 
If the II indicator light turns on, a bulb has 
failed.  The message indica tes the location of the 
bulb. 
Replace 
the bu lb immediately . 
Vehicle  lights:  malfunction!  Please contact 
Service 
There i s a malfunction in the headlights or the 
light switch. Drive to an authorized Audi dealer or 
authorized Aud i Serv ice  Facility  immediately to 
have the malfunction corrected. 
&. WARNING 
-Light bulbs are  under pressure and can ex· 
plode when bulbs are replaced, whic h  in
creases the risk of injury. 
-
With gas-discharge lamps* (xenon head
lights), the high-vo ltage component must 
be handled appropriately. Otherwise, there 
is  a risk of fatal injury. 
~CD Headlight range control system 
II Headlight range  control: malfunction!  See 
owne
r's manual 
There i s  a mal f u nction  in the headlight range 
control system, which may cause glare for other 
drive rs. .,..   
Page 19 of 322
Downloaded from www.Manualslib.com manuals search engine Drive to an authorized Audi dealer or authorized 
Audi Service  Facility immediately to have the 
malfunction corrected. 
~O Audi adaptive light 
Applies  to: vehicles  with  Audi  adaptive  light 
rJJ Audi adaptive  light: malfunction! See own
er's manual 
There is a malfunction in the adaptive lights. The 
headlights still function. 
Drive to an authorized Audi dealer or authorized 
Audi  Service  Facility immediately to have the 
malfunction corrected. 
li,D Light/rain sensor 
El Automatic  headlights:  malfunction! See 
owner's manual 
II Automatic  wipers: malfunction! See owner's 
manual 
The light/rain sensor is malfunctioning. 
The  low 
beams remain switched on at all times 
for safety reasons when the light switch  is in the 
AUTO position. You can continue to turn the 
lights on and off using the light switch. You can 
still control all wiper functions that are inde
pendent of the rain sensor. 
Drive to an authorized Audi dealer or authorized 
Audi  Service  Facility immediately to have the 
malfunction corrected. 
; Damper  control 
App lies  to: vehicles  with  Audi  drive select 
R Suspension:  malfunction! You may continue 
driving 
There is an adaptive damper malfunction. 
Drive to an authorized Audi dealer or authorized 
Audi  Service  Facility immediately to have the 
malfunction corrected. 
Instruments and indicator lights 
¢ Q Turn signals 
If the. or B indicator light blinks,  a turn sig
nal is turned on. If both indicator lights are blink
ing, 
the emergency flashers are on. 
In 
an indicator light blinks twice as fast as usual, 
then a turn signal bulb has failed. Replace the 
bulb immediately. 
CJ! 4f. Rear  safety belt 
Applies  to: vehicles with rear safety belt detection 
The respective indicator light will turn on briefly 
when a safety belt on the rear seats is fastened 
or unfastened. 
f!l-If this indicator light turns on briefly, the 
safety belt on the rear seat is not fastened. 
II-If this indicator light turns on briefly, the 
safety belt on the rear seat was fastened. 
·-If this indicator light blinks, the safety belt 
was unfastened while  driving.  Above a certain 
speed, there will also be a warning tone. 
(D Tips 
For additional information on safety belts, re
fer to ~page 180. 
On-Board Diagnostic 
system (OBD) 
System  indicator light (MIL) 
The system indicator light (MIL) Ill in the instru
ment cluster is part of the On Board Diagnostic 
System (OBD II). 
The 
warning/indicator light turns on when the ig
nition  is 
switched on and turns off once the en
gine is started and is running in idle at a stable 
speed. This indicates that the MIL is functioning 
correctly. 
If the  light does not turn off after  starting the 
engine or turns on while  driving, this may indi
cate there is a malfunction in the engine. If the 
indicator turns on, the catalytic converter may be 
damaged. ..,. 
17   
Page 20 of 322
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Drive with reduced engine performance (avoid 
high 
speeds for extended periods of time and/ or 
fast acceleration) and have the malfunction cor
rected. See an authorized Audi dealer or author
ized  Audi  Service  Facility. 
The 
indicator may turn on if the electronic speed 
lim iter is faulty.  For additional information, refer 
to c:> page 72, Electronic  speed limiter. 
On-Board  Diagnostics 
Fig. 4 Locat ion of Data  Link Connector (DLC) 
On-Board Diagnostics monitors the components 
of your emission control system. Each monitored 
component in your engine system has been as
signed a code. In case of a malfunction, the com-
18 
ponent will be identified and the fault stored as a 
code in the control module memory. 
The MIL light may also illum inate if there is  a 
l
eak in the on-boar d fuel vapor recovery system. 
If the light illuminates after a refuelling, stop 
the vehicle and make sure the fuel  filler cap is 
properly closed c:> page 233. 
In order to make an accurate diagnosis, the stor
ed data can only be displayed using special d iag
nostic equipment (generic scan tool for OBD). 
In order to connect the special diagnostic equip
ment, push the plug into the Data Link Connector 
(DLC). The DLC is located to the right of the hood 
release c:> fig.  4. 
Your authorized Audi dealer or a qualified  service 
station can interpret the code and perform the 
necessary repair. 
11. WARNING 
Do not use the diagnostic connector for per
sonal use. Incorrect usage can cause malfunc
tions, which can increase the risk of a colli
sion! 
- I