Fuel Level Sensor 2 -G169-, CHECKING

WARNING: This page is about a different variant/trim than selected.

Special tools and workshop equipment required

Analog/Digital Multimeter FLU83III
Connector Test SetVAG1594D
Carpet knife, commercially available

Procedure

-- Remove the left single seat and the left 2/3 seat bench seat cushion in the second row of seats, refer to Seat Frames .

WARNING:

Risk of injury.

Wear safety gloves

-- Cut the floor covering along the perforation -arrows- on the left side with a carpet knife -1-.

Fig 1: Cut The Floor Covering Along The Perforation

Courtesy of AUDI OF AMERICA, LLC

-- Fold carpet cut-out to side in direction of -arrow-.

Fig 2: Identifying Locking Flange Cover - Tightening Specifications

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-- Remove the nuts -1 to 4- and remove left locking flange cover.

-- Disconnect the connector -arrow- on the left locking flange.

Fig 3: Connecting Connector -Arrow- At Left Locking Flange

Courtesy of AUDI OF AMERICA, LLC

NOTE:

Ignore items -2 and 3-.

-- Connect multimeter between terminals -2 and 3- to measure resistance.

Fig 4: Fuel Level Sensor 2 Components Location

Courtesy of AUDI OF AMERICA, LLC

Fuel level sensor 2 -G169- is installed:

Sensor at lower stop: 760 to 842 Ω.
Sensor at upper stop: 67 to 86 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 2 -G169- must be removed (Refer to Fuel Level Sensor 2 -G169-, REMOVING AND INSTALLING .) and the sensor floater must be placed in upper or lower end position.

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- is removed:

Sensor at lower stop: approximately 990 Ω.
Sensor at upper stop: approximately 51 Ω.

Assemble in reverse order of disassembling. Note the following:

-- Install the left locking flange cover, refer to Figure.

-- Insert the frame into the floor covering, refer to the Parts Catalog and Interior Trim .

-- Install the left single seat and the left 2/3 seat bench seat cushion in the second row of seats, refer to Seat Frames .