why does my Volkswagen Passat B8 (2015-2022) smell like gasoline

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a level surface and the engine is cool.
• Disconnect the battery to prevent any electrical issues.

2. Inspect and Replace Damaged Fuel Lines

• Sub-steps:
  • Locate the fuel lines running from the fuel tank to the engine.
  • Visually inspect the lines for cracks or wear.
  • If damaged, use a socket set to remove the affected sections.
  • Replace with OEM-spec fuel lines, ensuring proper fitment.
  • Tighten all connections to the manufacturer’s specified torque.

3. Check and Replace Fuel Injectors

• Sub-steps:
  • Access the fuel rail by removing any components obstructing it (e.g., engine cover).
  • Disconnect the electrical connectors from the fuel injectors.
  • Remove the fuel rail using a socket set.
  • Inspect the injectors for leaks; if leaking, replace them with new OEM injectors.
  • Reinstall the fuel rail and reconnect the electrical connectors.

4. Inspect and Replace Seals and Gaskets

• Sub-steps:
  • Identify and remove any components that cover the fuel system seals (e.g., intake manifold).
  • Inspect O-rings and gaskets for wear or damage.
  • Replace any degraded seals with new OEM parts.
  • Reassemble components securely.

5. Test Fuel System Pressure

• Sub-steps:
  • Connect a fuel pressure gauge to the fuel rail.
  • Turn the ignition to the "on" position (do not start the engine) to pressurize the system.
  • Check the gauge reading; it should be within the manufacturer’s specifications.
  • If pressure is low, check for additional leaks or faulty components.