Audi A3 Sportback, Service, Page: 49 / 60

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Onboard computer
The optional Driver Information System (FIS) will be
extended to an onboard computer. In the onboard
computer, the following functions can be
programmed:
–
auxiliary heating/ventilation
– clock
– computer (FIS menu)
– speed alarm (speed warning)
– radio display in FIS
– language
– units
Function selector switch 2 E272 in the centre
console is used only to operate the basic navigation
functions which are displayed on the central display
of the dash panel insert.
3-wire fuel tank sender
From week 45/04, 3-wire fuel tank senders will be
installed.
In this configuration, the fuel tank sender evaluates
the two components of the fuel tank sender
between the middle signal pickup and the
respective outer connection.
The dash panel insert computes from both
measured values and the known overall resistance
of the fuel tank sender ohmic value R11, ohmic
value R12 and lining resistance R1s. A lining
resistance R1s > 150
Ω is registered in the fault
memory. The following message appears on the
central display of the dash panel insert: "Tank
system faulty - Please visit workshop". In this case,
the fuel tank sender (both fuel tank senders in the
case of quattro models) must be replaced.
All fuel tank resistance and litre values can be read
out as measured data using the diagnostic tester.
With quattro models, the values R21, R22 and R2s
are evaluated for fuel gauge sender -2- G169.
Diagnosis
The radio controlled clock test mode (See SSP 312,
page 43) now displays the result "Test in progress",
"Test OK" or "Test NOK" and "Measurement
completed". If no test has been performed during
the current diagnosis, "Measurement completed" is
displayed. Further new measured values are available for
diagnosis of various components on the dash panel
insert. These are explained in "Guided Fault
Finding".
332_044
Dash panel insert J285
Fuel gauge sender G
Float
332_045
SET
AUXILIARY
HEATER
/VENTILATION
CLOCK
COMPUTER
SPEED ALARM
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