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In s trument
s a nd warning
/ indicator
lights
29
(D
Note
To prevent scratches on the glass covering
the Head-up Display, do not place any ob-
jects in the projection opening.
(D}
Tips
- Sunglasses with polarizat ion fi lters and
unf avorable lighting condit ions can af-
fect the display.
- A special windshield is needed for the
Head-up Display funct ion .
- For information on cleaning, refe r to
c:!) t able on page
216 .
Open door/hood/rear
lid warning
Fig. 16 Display: door s and rear lid open
W ith t he ignition swit ched on, the warning il-
lum inat es when at least one door or t he hood
or the rear lid is not closed. The symbol also
shows you which door(s) or li d is not closed.
I n the illus tr ati on
Q
fig.
1 6
it is t he drive r's
door and the left rear door.
On-Board
Diagnostic
system
(OBD)
Malfunction Indicator Lamp (MIL)
The Malfunction In dicator Lamp (MIL)
¢..ifl
in
the inst rument clust er is part of the On-Board
Diagnostic (OBD II) system .
The warning/ind icator light ill um inat es when
the ign ition is switc hed on and goes out afte r
the engine starts and t he idle has stabilized.
This indicates that t he MIL is working proper ·
L y.
If the light does not go out
afte r t he engine
is starte d, or illumi nates while you are driv-
ing, a malf unction may exist in the engine sys-
tem .
If
the light illumi nates, t he catalytic con-
verter could be damaged .
Contin ue driving
with reduced power
(avoid-
ing susta ined high speeds and/or rapid accel-
erations) and have the cond ition corrected .
Contact your authori zed Audi dealer.
If the light illuminates, the electronic speed
li miter may also be malfunct ioning. For more
information Q page 30 , Elect ronic speed
limiter.
An imprope rly closed fuel fille r cap may also
cause the MIL light to ill uminate
~
page
223.
On-Board Diagnostics
Fig. 17 Locat ion of Data Link Conn ector (DLC)
On-Board Diagnost ics monitors t he compo-
nents of your emiss ion cont rol system. Each
monitored component in your engine system
has been assigned a code. In case of a mal-
funct ion, the component will be identified
and the fault stored as a code in the control
module memory.
The MIL light may also illuminate if there is a
leak in the on-board fuel vapor recovery sys-
tem. If the lig ht illuminates after a refueling,
stop the vehicle and make sure the fuel fi ll er
cap is prope rly closed c:!) page
223.
In order to make an accurate diagnosis, the
stored data can on ly be displayed using spe-
cial diagnostic equipment (generic scan tool
furOBru.
~
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