my BMW X5 F15 (2014-2019) has a strong smell of gasoline, what could it be?

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a flat surface.
• Disconnect the battery to prevent any electrical sparks.

2. Inspect and Repair Fuel Lines

• Tools Required: Socket set, wrench set, fuel line removal tool
• Sub-steps:
  1. Locate the fuel lines running from the fuel tank to the engine.
  2. Use the fuel line removal tool to disconnect the fuel lines carefully.
  3. Inspect the lines for cracks or damage; replace any damaged sections with new lines.
  4. Reconnect the fuel lines and ensure they are secured tightly.

3. Replace Faulty Fuel Injectors

• Tools Required: Socket set, injector puller, torque wrench
• Sub-steps:
  1. Remove the engine cover if necessary to access the fuel rail.
  2. Disconnect the electrical connectors from the fuel injectors.
  3. Remove the fuel rail bolts and gently lift the fuel rail to access the injectors.
  4. Pull out the faulty injectors (using the injector puller if necessary) and replace them with new ones.
  5. Reinstall the fuel rail and reconnect the electrical connectors.

4. Inspect and Repair Fuel Tank

• Tools Required: Socket set, flashlight, fuel tank removal tool (if necessary)
• Sub-steps:
  1. If a leak is suspected, carefully inspect the fuel tank for damage or rust.
  2. If needed, remove the tank by disconnecting the fuel lines and support straps.
  3. Repair any leaks using a fuel tank repair kit or replace the tank if severely damaged.
  4. Reinstall the tank and reconnect all components.

5. Check and Repair EVAP System

• Tools Required: Vacuum pump, multimeter
• Sub-steps:
  1. Inspect the EVAP hoses for cracks or disconnections.
  2. Use a vacuum pump to test the integrity of the EVAP system components.
  3. Replace any faulty parts, such as the charcoal canister or solenoid.