Fuel Level Sensor G , checking

Special tools, testers and auxiliary items required

Fig 1: Portable Multimeter V.A.G 1526C

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Fig 2: Identifying Connector Test Set V.A.G 1594 C

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Test sequence

Remove rear seat bench →
- 72 - SEAT - FRAMES
- 72 - SEAT - FRAMES for BODY INTERIOR - CABRIOLET
.

Fig 3: Removing Cover Bolts For Locking Flange

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Audi RS4:

Fig 4: Removing Electrical Wires With Connector From Locking Flange Opening

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Remove electrical wires with connector - arrow - from locking flange opening and lay them aside.

All:

Fig 5: Disconnecting Electrical Harness Connector At Right Locking Flange

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Fig 6: Connecting Hand Multimeter V.A.G 1526 C Between Terminal For Resistance Measurement

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Connect hand multimeter V.A.G 1526 C between terminal - 2 - and - 3 - for resistance measurement.

Sensor installed	Sensor at lower stop	Sensor at upper stop
Fuel Level Sensor G	295 to 305 Ω	56 to 68 Ω

NOTE:

If measured value is 0 Ω there is a short circuit. If measured value is ∞ Ω there is and open circuit in the wiring.
To check resistance values "tank full" or "tank empty" , the fuel level sensor G must be removed → Fuel Level Sensor G , removing and installing and the floater of the sensor must be pivoted to the upper or lower end position.
With fuel level sensor G removed, the following values are obtained because of the greater deflection of the floater arm:

Sensor removed	Sensor at lower stop	Sensor at upper stop
Fuel Level Sensor G	295 to 305 Ω	52.7 to 57.9 Ω