fuel cap release AUDI Q7 2012 Owner´s Manual

28 Driver information d isplay
On-Board Diagnostics
Fig. 22 Locat ion 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)
¢page 253.
In o rder to make an accurate d iagnosis, the
stored data can only be displayed using spe­
cial diagnostic equipment (generic scan tool
for OBD).
I n 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¢
fig . 22.
Your author ized Audi dealer or qualified work­
shop can interpret the code and perform the
necessary repair.
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 ir es 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 elec tronic speed limit­
er . The e lectronic speed limiter prevents your
vehicle from going faster than the tire speed
rating . For more information ¢
page 285.
If the engine control unit receives faulty vehi­
cle roadspeed signals, the Malfunction Indica ­
tor Lamp (MIL)
II will ill uminate. 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.
T he speed warning system warns the driver if
he exceeds a previo usly stored maximum
speed . A warning tone wi ll 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 "'