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28
Dr ive r information
d is play
On-Board Diagnostics
Fig. 22
Location of Data Link Connector (DLC)
On-Board Diagnostics monitors the compo-
nents of your emission control 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 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 fue l vapor recovery sys-
tem. If the light illuminates after a refuelling ,
stop the veh icle and make sure the fuel filler
cap is proper ly closed (on ly vehicles with gaso-
line engine) c::> page 250.
In o rder to make an accurate d iagnosis, t he
stored data can only be displayed using spe-
cial diagnostic equipment (generic scan tool
for OBD).
In o rder 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
c::>
fig .
22.
Your author ized Audi dealer or qualified work-
shop can interpret the code and perform the
necessary repai r.
A
WARNING
Do not use the diagnostic connector for
personal use. Incorrect usage can cause
ma lfunctions, which can increase the risk
of a collis ion!
Electronic
speed
limiter
Your vehicle may be factory equipped w ith
t ires 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 fa ilure a nd loss of contro l if
the vehicle is operated at excessive speeds,
your vehicle also has an e lect ronic speed limit-
er . The e lectronic speed limiter prevents your
vehicle from going faster than the tire speed
rating . For more information
c::>
page 291.
If the engine control unit receives fa ulty vehi-
cle roadspeed signals, the Malfunction Indica -
tor Lamp (MIL)
¢4
will illuminate . If this oc-
curs, contact the nearest authorized Audi
dealer for assistance.
A
WARNING
-
Always observe the posted speed limits
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 the driver if
he exceeds a previo usly stored maximum
speed . A warning tone will so und 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.
The speed warning system has two warning
thresholds that function independently of
each other and that have somewhat different
purposes:
Speed warning 1
You can use speed warning 1 to set the maxi-
mum speed while you are driving. This setting
"'
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