A6 Quattro Wagon V6-3.2L (BKH) (2006)
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Disconnect electrical harness connector - arrow - at locking flange.
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Connect multimeter between terminal - 3 - and - 4 - for resistance measurement.
Fuel Level Sensor 2 G169 installed:
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Sensor at lower stop:approx. 790 to 975 ohms.
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Sensor at upper stop:approx. 50 to 86 ohms.
NOTE:
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If measured value is 0 ohm 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 2 G169 must be removed and the sensor floater must be placed in
upper or lower end position.
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With fuel gauge sensor removed, the following values are obtained because of the greater deflection of the floater arm:
Fuel Level Sensor 2 G169 removed:
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Sensor at lower stop:approx. 1004 ohms.
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Sensor at upper stop:approx. 50 ohms.
Assembly is in reverse order of removal, note the following:
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Install rear seat bench.