30 Driver in formation sy ste m
On-Board Diagnostics
Fig. 15 Lo cat ion of D ata Link Connec tor (D LC)
On-Board Diagnostics monitors the compo
nents of your emission con trol system. Each
monitored component in your engine system
has been assigned a code . In case of a mal
function, the component will be ident ified
and the fau lt stored as a code in the control
module memory .
The MIL light may also illuminate if there is a
leak in the on-board fue l vapor recovery sys
tem.
If the lig ht illuminates after a refuelling ,
stop the veh icle and ma ke sure the fuel filler
cap is proper ly closed
<> page 212.
I n o rder to make an accurate d iagnosis, the
stored data can only be displayed using spe
cia l diagnostic eq uipment (gener ic s can tool
for OBD).
I n o rder to connect the special diagnostic
equipment, push the p lug i nto the Data Link
Connector (DLC). The DLC is located to the
right of the hood release¢
fig. 15 .
Your author ized A udi dealer or a qualified
service station can interp ret the code and pe r
form the necessary repa ir .
A WARNING
Do not use the diagnostic con nector for
personal use. Incorrect usage can ca use
ma lf u nctions, which can increase the risk
of a coll ision!
-
Electronic speed limiter*
Applies to vehicles: with electronic speed limiter
Your vehicle may be factory eq uipped w ith
t ir es that are rated fo r a max imum speed of
130 mph (210 km/h) . This is less than the
maximum speed of your vehicle. To reduce the
risk of sudden tire fa ilure and loss of contro l if
the vehicle is operated at excessive speeds,
your vehicle a lso has an electronic speed limit
er . The elec tronic speed limi ter prevents your
vehicle from going faster than the tire speed rating . For more information ¢
page 248.
If the engine control unit receives faulty veh i
cle road speed signa ls, the Malfunction Ind i
cator Lamp (M IL)
¢..fi will illuminate . If this
occurs, contact the nea rest authorized A udi
dealer for assistance .
A WARNING
Always observe the posted speed lim its
a nd adjust your speed to suit prevai ling
road, traffic and weather cond itions. Never
d rive your vehicle faster than the maxi
mum speed rating of the tires installed. -
