S4 Quattro Wagon V8-4.2L (BHF) (2008)
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Remove electrical wires with connector - arrow - from locking flange opening and lay them aside.
All:
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Disconnect electrical harness connector - arrow - at right locking flange.
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Connect hand multimeter V.A.G 1526 C between terminal - 2 - and - 3 - for resistance measurement.
NOTE:
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If measured value is there is a short circuit. If measured value is infinity Ohms there is and open circuit in the wiring.
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To check resistance values "tank full" or "tank empty" , the fuel level sensor G must be removed and the floater of the sensor must be pivoted
to the upper or lower end position.
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With fuel level sensor G removed, the following values are obtained because of the greater deflection of the floater arm:
