why does my Volkswagen Golf MK7 (2015-2019) have a fuel pump relay clicking sound?

Solution

1. Preparation

• Gather tools and parts required for the repair.
• Disconnect the battery to ensure safety while working on electrical components.

2. Replace Fuel Pump Relay

• Tools Required: Socket set, flathead screwdriver, multimeter
• Locate the fuel pump relay in the fuse box (check the owner’s manual for exact location).
• Use the socket set to remove the fuse box cover.
• Remove the faulty fuel pump relay by pulling it straight out of the socket.
• Insert the new relay into the socket, ensuring it is seated properly.

3. Inspect and Test the Fuel Pump

• Reconnect the battery.
• Turn the ignition to the "ON" position without starting the engine; listen for the fuel pump to prime.
• Use the multimeter to check the voltage at the fuel pump connector (should be around 12V).
• If the voltage is present but the pump does not operate, replace the fuel pump.

4. Reassemble and Test

• Reinstall the fuse box cover.
• Start the engine to ensure it runs smoothly without clicking from the relay.
• Conduct a test drive to verify repair success.