Q7 Quattro V8-4.2L (BAR) (2008)
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Connect multi meter between terminal - 2 - and - 3 - for resistance measurement.
Fuel level sensor 1 (G) installed:
‹› Sensor at lower stop: 863 to 960 ohms.
‹› Sensor at upper stop: 67 to 86 ohms.
‹› If measured value is 0 ohms there is a short circuit. If measured value is infinite ohms there is and open circuit in the wiring.
‹› To check resistance values "tank full" or "tank empty", the fuel level sensor 1 (G) must be removed => [ Fuel Level Sensor 1 ] See: Service and
Repair/Fuel Level Sensor 1 and the floater of the sensor must be placed in upper or lower end position.
‹› 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:
‹› Sensor at lower stop: approximately 990 ohms.
‹› 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.