A3 L4-2.0L Turbo (BPY) (2006)
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Disconnect electrical harness connector - arrow - at locking flange.
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Connect multimeter between terminal - 2 - and - 3 - for resistance measurement.
Fuel Level Sensor G installed:
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Sensor at lower stop: approx. 270 Ohms.
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Sensor at upper stop: approx. 70 Ohms.
NOTE:
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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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If measured value is 0 ohm there is a short circuit. If measured value is infinity ohm there is and open circuit in the wiring.
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With Fuel Level Sensor G removed, the following values are obtained because of the greater deflection of the floater arm:
Fuel Level Sensor G removed:
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Sensor at lower stop: approx. 290 Ohms.
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Sensor at upper stop: approx. 50 Ohms.
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Connect multimeter between terminal - 3 - and - 4 - for resistance measurement.
Fuel Level Sensor G installed or removed:
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Arbitrary sensor position: approx. 340 Ohms.
Assembly is in reverse order of removal, note the following:
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Install rear seat bench.