what are common issues with the fuel pump in a Volkswagen Passat B8 (2015-2022)?

Learn how to diagnose and fix P0087 fuel pump issues in Volkswagen Passat B8 (2015-2022). Step-by-step guide with diagnostic procedures and repair instructions.

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is on a flat, stable surface.
• Disconnect the negative terminal of the battery.

2. Remove the Fuel Pump

• Sub-steps:
  1. Relieve fuel system pressure by removing the fuel pump fuse and starting the engine until it stalls.
  2. Disconnect the fuel lines from the fuel pump assembly; use a line wrench to prevent damage.
  3. Remove the access cover (if applicable) to the fuel pump located under the rear seat or in the trunk.
  4. Unplug the electrical connector from the fuel pump.
  5. Remove the retaining ring that holds the pump in place using a suitable tool.
  6. Carefully lift the fuel pump assembly out of the tank.

3. Inspect and Replace Components

• Sub-steps:
  1. Inspect the old fuel pump for signs of wear or damage.
  2. Replace the fuel pump with a new unit, ensuring it is compatible with the Passat B8.
  3. Install a new fuel filter if necessary.
  4. Reinstall the fuel pump assembly in reverse order, ensuring all seals are properly seated.

4. Reassemble and Test

• Sub-steps:
  1. Reconnect the electrical connector and fuel lines securely.
  2. Install the access cover and secure it.
  3. Reconnect the battery terminal.
  4. Turn the ignition key to the "on" position several times to prime the fuel system.
  5. Start the engine and check for leaks.