A4 Cabriolet L4-1.8L Turbo (AMB) (2005)
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Disconnect electrical harness connector -1- at locking flange.
NOTE: Ignore - Pos. 2 -.
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Connect hand multimeter V.A.G 1526 B between terminal -2- and -3- for resistance measurement.
NOTE:
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If measured value is 0 Ohm there is a short circuit. If measured value is infinite Ohms there is and open circuit in the wiring.
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To check resistance values "tank full" or "tank empty", the fuel delivery unit must be removed and the floater of the sensor must be placed in
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:
