1. Disconnect the fuel hose from the fuel filter, release the clamp of its fastening, as shown in the figure below.
2. Connect a suitable hose to the fuel filter fitting, as shown in the figure below. Then drain the fuel through this hose into a suitable container, as shown in the figure below.
3. Fix the fuel hose to the high pressure fuel pump seal.
4. Connect a special scanner to the diagnostic connector.
5. Enable the fuel pump test function.