Fuel Tank, Draining With Fuel Pump Installed

WARNING: This page is about a different car, the 2023 Volkswagen Atlas. However, it is still accessible from the selected car via links, so may be relevant.

Special tools and workshop equipment required

Trim Removal Wedge:3409
Injection Rate Comparison Meter Kit - Remote Cable:VAG1348/3A
Connector Test Set:VAG1549D
Vehicle Diagnostic Tester - Test Adapter - 5 Pin:VAS5565
Fuel Extractor:VAS5190A
Fuel Extraction - Adapter 3:VAS5190/3

NOTE:

If the :VAS5190A has a suction hose with a mounted tip, then replace the hose with the version that has a tip that is screwed on.

Fig 1: Fuel Extracting Device

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

CAUTION:

The fuel system is under pressure.

Risk of injury from fuel spraying out.

- Wear protective eyewear.

- Wear safety gloves.

- Reduce the pressure: place clean cloths around the connection point and carefully open the connection point.

-- Disconnect the fuel supply line -1-. Disconnect the connector couplings. Refer to CONNECTOR COUPLINGS, DISCONNECTING .

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

NOTE:

Ignore -2-.

-- Collect leaking fuel with a cleaning cloth.

-- Connect the :VAS5190A and :VAS5190/3 to the fuel supply line.

Fig 2: Identifying Fuel Extraction - Adapter

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-- Attach the ground wire of the :VAS5190A to a bare area on the body.

-- Remove the installation opening cover. Refer to FUEL DELIVERY UNIT COVER, REMOVING AND INSTALLING .

-- Unlock and disconnect the connector -1- from the sealing flange.

Fig 3: Fuel Pump Control Module Connector

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-- Connect the :VAS5565 to the fuel delivery unit -1-.

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-- Connect the :VAG1348/3A to the :VAS5565 and the battery positive terminal clamp in the engine compartment.

-- Connect the connection -5- (yellow) on the :VAS5565 to the battery negative terminal using suitable service equipment -3-.

-- To do so, use the :VAG1549D also.

NOTE:

This step allows the fuel pump to run when the engine is not running.

-- Open the fuel filler door unit -2-.

Fig 4: Identifying Fuel Filler Door Unit And Cover

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-- Clean the area around the fuel filler neck.

-- Remove the cap -1- for the fuel filler neck.

CAUTION:

There is a risk of destroying the fuel pump if it runs dry.

- Never let the fuel pump run >>dry<<.

-- Press the :VAG1348/3A and the shut-off valve on the :VAS5190A until the fuel tank is empty.