2007 Audi A3 Base, StandardFACTORY OEM SERVICE PROCEDURE

Fuel Level Sensor, Connector Assignment

Procedure 

Fig 1: Identifying Retaining Tabs For Sealing Flange Cover
GWWA20-1066Courtesy of AUDI OF AMERICA, LLC

The fuel level sensor -G- is located under the right side of the rear seat bench.

-- Remove rear seat bench. Refer to Removal and Installation .

-- Unclip right locking flange cover retaining tabs -arrows-.

-- Carefully release and disconnect the connector -arrow- on the connector flange.

Fig 2: Identifying Fuel Delivery Unit Connector
GWWA20-1067Courtesy of AUDI OF AMERICA, LLC

Terminal assignment of the 5-pin harness connector at fuel level sensor - vehicles through approximately 11.04 

Fig 3: Connecting Multimeter Between Terminal Of Harness Connector For Voltage Measurement
GWWA28-0020Courtesy of AUDI OF AMERICA, LLC
  1. Transfer fuel pump -G6- switched positive
  2. Fuel level sensor ground (sensor ground)
  3. Wire connection from fuel level sensor to instrument cluster (fuel gauge)
  4. Not used
  5. Transfer fuel pump ground

Terminal assignment of the 5-pin harness connector at fuel level sensor - vehicles from approximately 11.04 

Fig 4: Connecting Multimeter Between Terminal Of Harness Connector For Voltage Measurement
GWWA28-0020Courtesy of AUDI OF AMERICA, LLC
  1. Transfer fuel pump switched positive
  2. Fuel level sensor ground (sensor ground)
  3. Wire connection from fuel level sensor to instrument cluster (fuel gauge)
  4. Tank sensor total resistance
  5. Transfer fuel pump ground

FSI/TFSI engines 

Fig 5: Identifying Fuel Pump (FP) Control Module
GWWA20-1145Courtesy of AUDI OF AMERICA, LLC
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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