FUEL PUMP DELIVERY RATE OF Transfer Fuel Pump - G6-, CHECKING IN ENGINE/MOTOR COMPARTMENT

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

The fuel delivery rate is checked using the Vehicle Diagnostic Tester.

Select repair group 20 - Fuel Supply System on the Vehicle Diagnostic Tester and follow the instructions.

The required preliminary work and the connecting of testing equipment are described in the procedure.

Special tools and workshop equipment required

Pressure Tester Kit:VAS 6550

Fig 1: Identifying Pressure Tester Kit VAS 6550
Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.
Pressure Tester Kit - Regulator Valve:VAS 6550/4

Fig 2: Identifying Pressure Regulator Valve VAS 6550/4
Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.
Pressure Tester Kit - Adapter Set:VAS 6550/3

Fig 3: Identifying Pressure Tester Kit - Adapter Set VAS 6550/3
Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.
Fuel-resistant measuring container, greater than or equal to three liters
Vehicle Diagnostic Tester

Connecting the testers:

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.

-- Remove the fuel supply line from the high pressure pump. Refer to OVERVIEW - HIGH PRESSURE PUMP . Disconnect the connector couplings. Refer to CONNECTOR COUPLINGS, DISCONNECTING .

-- Collect leaking fuel with a cleaning cloth.

Vehicles with fuel supply lines without connector couplings on the high pressure pump:

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Connect the Pressure Tester Kit - Adapter Set - Fitting:VAS 6550/3-1 -3- from the Pressure Tester Kit - Adapter Set:VAS 6550/3 to the fuel supply line -1-.

-- Secure the connection with a hose clamp -2-.

-- Connect the Pressure Tester Kit - Hose 2:VAS 6550/2 -4- to the Pressure Tester Kit - Adapter Set - Fitting:VAS 6550/3-1 -3-.

-- Connect the Pressure Tester Kit - Hose 2:VAS 6550/2 to the connection -A- on the Pressure Tester Kit:VAS 6550 -1-.

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

Vehicles with connector couplings on the fuel supply lines:

-- Connect the fuel supply line -2- to the connection -A- from the Pressure Tester Kit:VAS 6550 -1-.

Continuation for All Vehicles:

-- Connect the Pressure Regulator Valve:VAS 6550/4 -3- to the connection -B- on the Pressure Tester Kit:VAS 6550 .

-- Hold the open end of the hose coming from the pressure regulating valve in a measuring container -4-. Have a second technician hold the measuring container and hose so they are secure.

-- Make sure the drain valves -A- through -C- are sealed on the Pressure Tester Kit -1-.

CAUTION:

Risk of a fire due to leaking fuel.

Severe injuries and burns are possible.

- Before the test, check if all connected lines are securely connected by pulling on them.

- Remove any cleaning cloths soaked in fuel from the vehicle area.

- Place the measuring container outside of the vehicle and make sure it is securely positioned.

- With the help of a second technician, make sure the end of the hose stays in the measuring container and the measuring container does not tip over during the test.

Continue the test with the Vehicle Diagnostic Tester.

NOTE:

To prevent the fuel pump from activating, disconnect the battery before removing the Fuel Tester Kit:VAS 6550 . Refer to BATTERY, DISCONNECTING AND CONNECTING .

Reduce the pressure in the system before removing the connector couplings. To do this, hold the drain hose at connection -C- in a suitable container. Then carefully open the shut-off valve.