26 Dr ive r information display
This indicates that the MIL is working proper-
ly.
If the light doe s not go out after the eng ine
is sta rted, or illuminates whi le you are driv-
ing, a ma lfunction may exist in the engine sys-
tem .
If the light illum inates, 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 author ized Audi dealer.
If the light illuminates, the electronic speed
limiter may also be ma lfunctioning. For more
information
c::> page 26, Electronic speed
limiter.
An improperly closed fuel filler cap may also
cause the MIL light to illuminate
c::>page 230.
On-Board Diagnostics
Fig. 21 Locati on of Data Link Conn ector (DLC)
On-Board Diagnostics moni tors the compo-
nents of you r emission control system. Each
monitored component in your engine system
has been assigned a code. In case of a ma l-
function, the component will be ident ified
and the fault stored as a code in the control
module memory .
The MIL light may a lso illum inate if there is a
leak in the on-board fue l vapor recovery sys-
tem. If the light illuminates after a refueling,
stop the veh icle and make sure the fuel filler
cap is proper ly closed
c::> page 230 .
In order to make an accurate d iagnosis, the
stored data can only be displayed using spe-
cial diagnostic equipment (generic scan tool
for OBD).
In order to connect the special diagnostic
equipmen t , push the plug into the Data Link
Connector (DLC). The DLC is located to the
right of the hood release
r:::>fig. 21.
Your authorized Audi dea ler or qualified work-
shop can interpret the code and perform the
necessary repair.
Electronic speed
Limiter
Your vehicle may be factory equipped with
t ires that are rated for a maximum speed of
130 mph (210 km/h). This is less than the
maximum speed of your veh icle. To reduce the
risk of sudden tire fa ilure and loss of control if
the vehicle is operated at excessive speeds,
yo ur vehicle also has an e lectronic speed limit-
er . The e lectronic speed limiter prevents your
vehicle from going faster than the tire speed
rating. For more information
c::> page 258.
If the engine control unit receives faulty veh i-
cle road speed signa ls, the Malfunction Indi-
cator Lamp (MIL)
¢,.ij wi ll illuminate. If this
occurs, contact the nearest authorized Audi
dealer for assistance.
A WARNING
- -
Always observe the posted speed lim its
and adjust your speed to suit prevailing
road, traffic and weather cond itions . Never
drive your vehicle faster than the maxi-
mum speed rating of the tires installed .
Speed warning system
, Overview
The speed warning system helps you to keep
your driving speed below a set speed limit.
The speed warn ing system warns if the driver
exceeds a previously stored max imum speed.
A warn ing tone will sound as soon as the vehi -
cle speed exceeds the set speed by about
3 mph (3 km/h). At the same time, a warning .,.
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