On-Board Diagnostic system (08D)
On-Board Diagnostics
Fig. 10 location of
Data Link Connecto r
( DL C)
On-Board Diagnostics monitors the components of your emission
control system . Each controlled component in your engine system
has been assigned a code. In case of a malfunction , the component
will be identified and the fault stored as a code in the control
module memory .
The Mil lamp may also illuminate if there is a leak in the on-board
fuel vapor recovery system . If the light illuminates after a refuelling,
pull off the road and stop the vehicle, then check that the fuel filler
cap is properly closed
=> page 220 .
In order to make an accurate diagnosis, the stored data can only be
displayed using special diagnostic equipment (generic scan tool for
OBDl.
In order to connect the special diagnostic equipment, push the plug
into the Data Link Connector (DLC). The DLC is located to the right of
the engine hood re lease lever=> fig. 10.
Your authorized Audi dealer or a qualified service station can inter
pret the code and perform the necessary repair. •
Contro ls and eq uip
ment
Driver information display
Malfunction Indicator Lamp (MIL) (USA
models)/ (Canada models)
The Malfunction Indicator Lamp (MIU in the instrument cluster
=> page 11, fig . 5 is part of the On-Board Diagnostic (OBD II) system .
The warning/indicator light illuminates when the ignition is
switched on and goes out after the engine starts and the idle has
stabilized. This indicates that the Mil is working properly .
If the light does not go out after the engine is started, or illuminates
while you are driving, a ma lfunction may exist in the engine system.
If the light illuminates, the catalytic converter could be damaged.
Continue driving
with reduced power (avoiding sustained high
speeds and/or rapid accelerations) and have the condition
corrected . Contact your authorized Audi dealer.
If the light illuminates , the electronic speed limiter may also be
malfunctioning. For more information=>
page 21, "Electronic speed
limiter".
An improperly closed fuel filler cap may also cause the MIL light to
illuminate
=> page 220. •
Electronic speed limiter
Your vehicle may be factory equipped with tires that are rated for a
maximum speed of 130 mph (210 km/h) . This is less than the
maximum speed of your vehicle. To reduce the risk of sudden tire
failure and loss of control if the vehicle is operated at excessive
speeds, yo ur vehicle also has an electronic speed limiter. The elec
tronic speed limiter prevents your vehicle from going faster than the
tire speed rating. For more information
=> page 256, "Speed rating
(letter code)".
If the engine control unit receives faulty vehicle roadspeed signals,
the Malfun cti on Indicator Light (MIU will illuminate . If this
occurs, contact the nearest authori zed Audi dealer for assistance. _.,
Vehicle care I I irechnical data
Driver informati on displ ay
Selecting settings
The Driver Information System settings are menu-guided.
Select your settings as follows:
Fig . 17 Dis play: Men u
Sett ings, co mputer
sel ected (page 1)
- Press the !Reset) button. The Start menu appears
~ page 24, fig. 14.
- Press the rocker switch until
Set is displayed.
- Press the
(Reset] button. All the menus appear.
- Press the rocker switc h until the desired line is hig h-
lighted (cursor)~ fig. 17.
- Press the
!Reset] button .
- If necessa ry, scroll by selecting and activating t he
symbol for "Next page" or "Previous page".
When you have selected the Computer menu and activated it by
pressing the
I Reset] button, two computer levels appear (computer
1 and computer 2) . Now you have to select the level you want using
the rocker switch and activate it with the [R ese t] button. •
Speed warning system
Overview
The speed warning system hel ps you to keep your driv ing
speed below a set speed limit.
F ig. 18 Disp lay : sp ee d
w arni ng s yste m
The speed warning system warns the dr iver if he exceeds a previ
ous ly stored maximum speed . A warning tone will sound as soon as
the vehicle speed exceeds the set speed by about 3 mph (3 km/h). At
the same time, a warning symbol appears in the display=> fig. 18.
The speed war ning system has
two warn ing thre shold s that func
tion independently of each other and that have somewhat different
purposes :
Spee d warning 1 ~ / (Canad a mod els)
You can use speed warning 1 to set the maximum speed whi le you
are driving. This setting will remain in effect until you turn off the
ignition, assuming that you have not changed or reset the set ting.
The speed warning symbo l / (Canada models) in the warning 1
display appears when you exceed the maximum speed. It goes out
when the speed falls below the stored maximum speed.
T he speed warning symbol wi ll also go out if the speed
exceeds the
stored maximum speed by more than about 25 mph (40 km/h) for at
leas t 10 seconds . The stored maximum speed is deleted. .,_
Setting speed warning 1 ~ page 27.
Speed warning 2 ,,. / (Canada models)
Storing warning 2 is recommended if you always want to be
reminded of a certain speed, for example when you are traveling in
a country that has a general maximum speed limit, or if you do not
want to exceed a specified speed for winter tires.
The speed warning 2 symbol, /
,J. (Canada models) appears in the
display when you exceed the stored speed limit. Unlike warning 1,
it will not go out until the vehicle speed drops below the stored
speed limit.
Setting speed warning 2
~ page 27.
[ i ] Tips
Even though your vehicle is equipped with a speed warning system,
you should still watch the speedometer to make sure you are not
driving faster than the speed limit. •
Speed warning 1: setting a speed limit
Warning threshold 1 is set by the button.
Storing the maximum speed
-Drive at the desired maximum speed .
Contro ls and eq uip
ment
Fig . 19 Section of
instrument cluster:
Set/Check button
Driver information display
- Press the knob button~ fig. 19 until the~ page 26,
fig. 18 symbol appears.
Resetting the maximum speed
- Drive the vehicle at a speed of at least 3 mph (5 km/h)
- Press the knob for more than 2 seconds.
The speed warning symbol·-(USA models) /- (Canada models) will
appear briefly in the display when you release the button to indicate
that the maximum speed has been stored successfully.
The maximum speed remains stored until it is changed by pressing
the button again briefly or until it is deleted by a lengthy push on the
button. •
Speed warning 2: setting a speed limit
Switches in the wiper arm are used to operate warning
threshold 2.
To store maximum speed
- Turn off the ignition.
Vehicle care I I
Fig. 20 Wiper lever:
Trip computer controls
irechnical data
Yellow symbols
A yellow symbol means WARNING.
Contro ls and eq uip
ment Low fuel level
Check engine oi l level
Engine oil sensor malfunction
Engine speed limitation
Diesel particulate filter
Worn brake pads
USA models:
Speed warning 1
Canada models:
Speed warning 1
USA models:
Speed warning 2
Canada models:
Speed warning 2
Dynamic headlight range con -
trol * defective
W indshield washer fluid level low
Battery voltage too high or too
low
Defective light bulb
=> page 32
=> page33
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=> page33
=> page32
=> page32
=> page33
=> page 33
=> page33
=> page33
=> page33
=> page33
=> page33
...
=> page 33
=> page34
-
-
-
Driver information display
USA models: => page34
Defective brake light
Canada models: => page 34
Defective brake light
Light/rain sensor defective (auto-
=> page 34
matic headlights)* defective
-Adaptive Light * defective => page34
Tire pressure monitoring system * => page 35
When a yellow symbol appears, a warning tone will sound once.
Check the displayed function as soon as possible. If more than one
malfunction is d etected, all symbols will appear one after the other
for about two seconds. •
Driver information
In addition to the warning/indicator lights and the
symbols in the instrument cluster display, driver informa tion is displayed .
Vehicle care I I
Fig. 21 Section of
instrument cluster:
Set/Check button
irechnical data
Driver information display
Driver information appears in the display when a defective light
bulb is reported by the defective light bulb warning~
page 34,
when the brake pads are worn and before you engage a gear on
vehicles with S tronic.
In addition, driver information may appear when a red symbol
flashes in the driver display .
To display Driver information
As an example, the~ symbol appears in the display. If you now
press the button~
page 29, fig. 21 , the following driver message
appears in the display:
Switch off engine and check oil level
The driver message in the display goes out after about 5 seconds.
You can display the driver message again by briefly pressing the
button. •
Brake system malfunction
BRAKE (USA models) /((D) (Canada models )
The indicator light flashes if the brake fluid level is too
low, if there is a malfunction in the ABS system or when
the parking brake is engaged.
If the BRA KE/(CD) symbol flashes in the display with the
parking brake released, there is a malfunction in the brake
system. In addition to the symbol, one of two messages
appears in the display:
Stop vehicle and check brake fluid
ABS fault
! See owner's manual
- Pull off the road and stop the vehicle.
- Obtain professional assistance.
USA models: if there is a malfunction in the ABS system, the • c:::;
warning/indicator light illuminates along with the BRAKE system
malfunction warning/indicator light~
/.1.
Canada models: if there is a malfunction in the ABS system, the
warning/indicator light illuminates together with the
CCD) brake
system malfunction warning/indicator light~
/.1.
Parking brake set
The parking brake warning light Brake /«D> (Canada models) illumi
nates when the parking brake is set . In addition, a warning tone will
sound after you have driven for longer than 3 seconds and faster
than 3 mph (5 km/h).
& WARNING
• Always observe the warnings in~ page 215, "Engine compart
ment", before opening the engine hood and checking the brake
fluid.
• Driving with low brake fluid is a safety hazard! Stop the car and
get professional assistance.
• If the brake system warning/indicator light illuminates
together with the ABS warning/indicator light, then the ABS
system is malfunctioning. The rear wheels could quickly lock up
when you apply the brakes. This could lead to loss of control and
your vehicle could slide! Drive carefully to the nearest authorized
Audi dealer and have the malfunction corrected. •
Engine cooling system malfunction _t_
A malfunction in the engine cooling system must be
repaired as soon as possible.
When the J_ symbol in the display flashes, then either the
engine coolant temperature is too high, or the coolant level
~
If the '-" symbol comes on, add 1 quart (1 liter) of oil at the next
opportunity =>
page 230. •
Checking the engine oil level r.,
When the symbol illuminates, check the engine oil level as soon
as possible=>
page 229. Top off the oil at your earliest opportunity
=>
page 230. •
Engine oil sensor defective -;...
If the symbol illuminates, contact your authorized Audi dealer
and have the oil sensor inspected.•
Worn brake pads ~ :;
rt. Brake pads!
If the warning light illuminates, immediately contact your autho
rized Audi dealer or qualified workshop to have all brake pads
inspected. On USA models the warning light? comes on together
with the warning light
BRAKE. Both sets of brake pads on an axle must
always be replaced at the same time.
& WARNING
Driving with bad brakes can cause a collision and serious personal
injury.
• If the warning light and the warning light
BRAKE11 with the
message Brake pads! comes on in the instrument cluster display,
immediately contact your authorized Audi dealer or qualified
workshop to have all brake pads checked or replaced if
necessary. •
11 BRAKE : USA models only
Controls and equip
ment
Speed warning
models) 1
· ,I'""'
Driver information display
(USA models> IP (Canada
If the ~ symbol illuminates, this means you are driving faster than
the set vehicle speed. Slow down!=>
page 26. •
Speed warning 2 r (USA models) /,.__, (Canada
models)
If the C) symbol illuminates, this means you have driven faster than
the second set vehicle speed. Slow down! =>
page 26. •
Applies to veh icles : wi th dynamic head light range ad justment
Headlight range control defective
If the illuminates, the dynamic headlight range control is no
longer working properly. Have the system checked and repaired at
your authorized Audi dealer. •
Windshield washer fluid level too low .-_j
If the ~ symbol illuminates, add windshield washer fluid to the
washer system =>
page 240. •
Battery voltage low ~
If the C symbol illuminates, contact your authorized Audi dealer
and have the following components inspected:
• drive belt
• battery charge
Also see if the generator warning/indicator light illuminates
=>
page 14. •
I • •
Driver information display
Defective light bulb warning U
The defective light bulb warning tells you when a vehicle
light bulb has become defective.
If a defective bulb has been detected by the system or a light bulb
burns out, the symbol with a message appears in the display to
tell you which bulb is burnt out and where it is located. For example:
Rear left turn signal
After 5 seconds, the message disappears . If you want to recall the
message into the display, press the CHECK button=>
page 8, fig. 2
©-
There are three reasons why the defective bulb message would
appear in the display:
• The light bulb has burnt out=>
page 283.
• The fuse is "blown" => page 278, "Replacing a fuse".
• The wire connection to the light bulb is defective .
Have the bulb replaced or the connection repaired by your autho
rized Audi Service department.
& WARNING
• Light bulbs are pressurized and could explode while they are
being changed causing serious personal injury.
• Work with due care when handling the high-voltage section of
gas discharge (xenon) lamps. Failing to do so could result in death
or serious injury! •
Brake light defective " U'lf" (USA
models) / (Canada models)
In case of a malfunction or component failure, the symbol
(USA models)/ (Canada models) can appear . The following elec- trical components should be checked, repaired or replaced, as
necessary:
• Brake light bulbs
• All wiring connections
• Brake light switch
Contact your authorized Audi dealer for assistance if necessary.
[ i] Tips
The brake light switch is only inspected as part of the functional
check after the engine is started .•
A pplies to vehi cles : w it h a uto mati c he adl ights
Light /rain sensor defective _,
The indicator light indicates a defect in the automatic
headlights/automatic wiper system.
If the symbol illuminates, the light sensor has failed. For safety
reasons, the low beams are turned on permanently with the switch
in
AUTO. However, you can continue to turn the lights on and off
using the light switch . In the case of a defect in the rain sensor, the
windshield wiper lever functions are still available. Have the
light/rain sensor checked as soon as possible at an authorized Audi
dealer. •
Applies t o vehi cles: with Ad aptive Ligh t
Adaptive Light defective ~{)
C: Adaptive light defective
When this symbol J illuminates, it means that Adaptive Light is
defective. Go to a qualified workshop to have the headlights or the
control unit for the Adaptive Light repaired. •
Clear vision
- P lace th e su n bl ind aga inst the sp ring f orc e in to the
c e n te r br ac ke t :::::,
page 67, fi g. 6 0 @ of th e p arcel s helf.
& WARNING
The sun blind must not be u sed to secure cargo . The luggage
compartment cover is not a luggage ra ck . Objects placed on the
c over pose a danger for all vehicle occupant s during sudden
b rak ing or in an accident . •
Wiper and washer system
tY -.
Wind shi eld wip er ~
The win dshield wi per lever c ontrols both the windshield
w ip ers and the was her sys tem.
Fig. 61 Wiper le ver ;
windshi eld wip er l eve r
po sit io n s
The win dshield wiper le ver :::::, fig. 6 1 has t he foll owing posi
t io ns:
Intermittent wiping \\7 ! (activating rain sensor) *
- Move the lever up to position G) .
Move the in te rva l set switch @, to change the inte rva ls.
Low wiper speed
- Move t he lever u p to pos ition ® ·
High wiper speed
- Mov e the lever up t o po sition G) .
One -touch wiping
- Move the lever to posi tion ©, when you wa nt to wipe the
windshield
briefly.
Automatic w iper /washer
- Pull the lever to pos ition G) (towar d th e ste ering wheel)
and hold.
- Re lease t he lever. The was her stops a nd th e w ipers kee p
g oing f or ab out fo ur secon ds.
Turning off the wipers
- Move t he lever bac k to positio n ®·
The windshield wipers and washer only work when the ignition is
turned on . If you sw itch off the ignitio n with the windshield wiper
lever still in the interval wipe position and then come back a while
l ater and drive off, the rain sensor wil l reactivate i tse lf after the
vehic le speed has exceeded 4 mp h (6 km/h).
The rain sensor * is only activated with the wiper lever set to posi
tion @. When i t star ts to rain, the rain s ensor wil l automatically ac ti
vate the int ermi tte nt wiping mode.
To reduce the sensi tiv ity of the sensor, move switch
@ down . To
increase the sensitivity, move the switch up . The higher you adjust
the sensitivity, the fas ter the sensor will react whe n it senses mois -
ture on the windshield. .,