how to fix the P0455 code on my BMW X3 G01 (2018-2024)?

Solution

1. Preparation

• Gather tools and parts required for the repair.
• Ensure the vehicle is parked on a level surface and the engine is turned off.
• Disconnect the battery to avoid any electrical issues during the repair.

2. Inspect and Replace the Gas Cap

• Tools Required: None specific
• Instructions:
  1. Remove the gas cap and inspect for any visible damage or debris.
  2. Clean the sealing surface on the fuel filler neck.
  3. Replace the gas cap with a new, OEM part if any damage is found.

3. Repair or Replace Damaged EVAP Hoses

• Tools Required: Socket set, pliers
• Instructions:
  1. Locate the EVAP hoses connected to the canister and purge valve.
  2. Disconnect any damaged hoses using pliers and replace them with new ones.
  3. Secure the new hoses with appropriate clamps.

4. Test and Replace the EVAP Purge Valve (if necessary)

• Tools Required: Multimeter, socket set
• Instructions:
  1. Disconnect the electrical connector from the purge valve.
  2. Use a multimeter to test the valve's resistance; reference the service manual for specifications.
  3. If the valve is faulty, remove it from the vehicle by unscrewing the mounting bolts.
  4. Install a new EVAP purge valve and reconnect the electrical connector.

5. Evaporative Emission Control Canister Inspection

• Tools Required: Socket set, flashlight
• Instructions:
  1. Locate the EVAP canister under the vehicle or in the engine bay.
  2. Inspect for cracks or signs of damage; replace if necessary.
  3. Ensure that the canister is properly connected to the EVAP lines.