Q7 Quattro V8-4.2L (BAR) (2008)
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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 1 G must removed and the floater of the sensor must be placed in inner
or lower end position.
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With fuel level sensor 1 G removed, the following values are obtained because of the greater deflection of the floater arm:
Fuel level sensor 1 G removed:
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Sensor at lower stop: approximately 990 ohms.
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Sensor at upper stop: approximately 51 ohms.
Assembly is in reverse order of removal, note the following:
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Install locking flange cover.
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Install tank access carpet frame in floor covering.
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Install right seat frame in 2nd row.