30 Instruments and warning/indicator lights
Display brightness
You can adjust the display brightness in the
MMI. The display brightness decreases auto
matica lly as the amo unt of light decreases.
The basic leve l of brightness is adjusted with
the instrument illumination
c:> page 47.
(D Note
To prevent scratches on the glass covering
the Head-up Disp lay, do not place any ob
jects in the projection opening.
@ Tips
- Sunglasses with polarization fi lters and
unfavorable lighting conditions can af
fect the display.
- A specia l windshield is needed for the
Head-up Display function.
- For information on cleaning, refer to
c:> table on poge 215.
On-Board Diagnostic
system (OBD)
Malfunction Indicator Lamp (MIL)
The Malfunction Indicator Lamp (MIL) II! in
the instrument cluster is part of the On-Board
Diagnostic (OBD II) system.
The warning/indicator light illuminates when
the ignition is switched on and goes o ut after
the engine starts and the idle has stabilized.
This indicates that the MIL is working proper
ly .
If the light does not go out after the engine
is started, or illuminates while you are driv
ing, a ma lfunction may exist in the engine sys
tem. If the light illuminates, the catalytic con
verter could be damaged.
Continue driving
with reduced power (avoid
ing sustained high speeds and/or rapid accel
erations) 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
r=.> page 31,
Electronic speed
limiter .
An improperly closed fuel filler cap may also
cause the MIL light to illuminate
c:> page 221.
On-Board Diagnostics
Fig. 16 Locat ion of Data L ink Con nector (DLC)
On-Board D iagnost ics monitors the compo
nents of your em iss ion control system . Each
monitored component in your engine system
has been assigned a code . In case of a mal
function, the component will be identified
and the fault stored as a code in the control
module memory.
T he MIL light may also illuminate if there is a
leak in the on-board fuel vapor recovery sys
tem.
If the light illum inates after a refuelling,
stop the vehicle and make sure the fuel filler
cap is properly closed
c:> page 221.
In order to make an accurate diagnosis, the
stored data can only be displayed using spe
cial diagnostic equipment (generic scan tool
for OBD).
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 hood release
r=.> fig . 16 .
Your authorized Audi dea ler or a qualified
serv ice station can interpret the code and per
form the necessary repair.
A WARNING
Do not use the diagnostic connector for
personal use. Incorrect usage can cause
container meets industry standards (ANSI/
ASTM F852 -86).
(D Note
Never drive your vehicle until the fuel tank
is complete ly empty. The irregular supp ly
of fuel can cause misfiring . Gasoline could
enter the exhaust system and damage the
catalyt ic converter.
Refuelling
Fig. 184 Right rear veh icle s ide: Opening t he fue l fill er
flap
F ig. 185 Fu el filler flap with at tached fue l cap
When activating the central locking, the fuel
filler flap is automatically un locked or locked .
Refuel the vehicle with the ign ition switched
off .
Taking the fuel cap off
.,. Press the left side of the fuel filler flap to
open it ¢
fig . 184 -arrow -.
.,. Unscrew fuel filler cap counter-clockwise
and hang it on the fuel fille r flap ¢
fig. 185 .
.,. Check the label on the inside of the fuel fi ll
er flap to determine if the vehicle must be
fueled with gasoline or diesel fu el.
Fuel supply and filling your fuel tank 221
Refuelling procedure
.,. Insert the fuel nozzle from the gasoline
pump into the fuel filler neck as far as it wi ll
go .
.,. Select a medium refuelling rate so that the
nozz le switches off automatically when the
tank is full.
Putting the fuel cap back on
.,. After filling your tank, twist the fuel filler
cap clockwise as far as it wi ll go.
.,. Close the fue l filler flap.
T o avoid fuel spilling or evaporating from the
fuel tank always close fuel filler cap properly
and completely . An improperly closed fuel fill
er cap may also cause the MIL lamp¢
page 30
to come on.
A WARNING
Improper refue ling or handling of fuel can
cause fire, explosion and severe burns.
- Fuel is highly flammable and can cause
severe burns and other injur ies .
- Failure to shut the engine off while refu
eling and/or to insert the pump nozzle
fully into the fuel filler neck could cause
fue l to spray out of filler neck or to over
flow. Fuel spray and overflowing fuel can
cause a fire.
- Never use a cellular telephone while re
fue ling. The electromagnet ic rad iation
can cause spa rks that can ignite fuel va
pors and cause a fire.
- Never get back into yo ur vehicle while re
fueling.
If in exceptional circumstances
you must get back in your vehicle while
refueling, make certain that you close
the door and touch metal to discharge stat ic electricity before touching the fill
er nozzle again. Static electricity can
cause sparks that can ignite fuel vapors
released during refueling.
- Never smoke or have an open f lame any
where in or near your veh icle when refu-
eling or filling a portab le fuel conta iner. .,.
