Q7 Quattro V6-3.6L (BHK) (2007)
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Fold carpet cut-out to side - arrow -.
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Remove nuts -1 to 4 - and remove left locking flange cover.
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Disconnect electrical harness connector -1 - at left locking flange.
NOTE: Ignore - 2 -.
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Connect multimeter between terminal - 2 - and - 3 - for resistance measurement.
Fuel Level Sensor 2 G169 installed:
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Sensor at lower stop: 760 to 842 ohms.
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Sensor at upper stop: 67 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 "tank full" or "tank empty" resistance values, 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 Level Sensor 2 G169 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. 990 ohms.
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Sensor at upper stop: approx. 51 ohms.
Assembly is in reverse order of removal, note the following:
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Install locking flange cover.
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Insert service tank access carpet frame in floor covering.
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Install 2nd row left seat cushion.