how to fix P0302 code in BMW X5 G05 (2019-2024)

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the negative battery terminal to prevent electrical shock.
• Allow the engine to cool down before starting repairs.

2. Inspect and Replace Spark Plug

• Remove the engine cover (if applicable) using a socket set.
• Locate and remove the spark plug wire or ignition coil for cylinder 2.
• Use a spark plug socket to remove the spark plug.
• Inspect the spark plug for wear; replace if necessary.
• Install a new spark plug, ensuring it is gapped according to manufacturer specifications (typically around 0.030 inches).
• Reconnect the ignition coil or spark plug wire.

3. Check and Replace Ignition Coil (if needed)

• If the ignition coil appears damaged or if the spark plug replacement does not resolve the issue, proceed to replace the ignition coil.
• Remove the mounting bolts securing the ignition coil.
• Disconnect the electrical connector from the ignition coil.
• Install the new ignition coil, ensuring it is seated properly.
• Reconnect the electrical connector and secure with mounting bolts.

4. Inspect and Replace Fuel Injector (if needed)

• If the ignition coil and spark plug are functioning properly, check the fuel injector.
• Disconnect the fuel injector connector and line (be cautious of fuel spillage).
• Remove the fuel injector from the rail using the appropriate tool.
• Install a new fuel injector and reconnect the fuel lines and electrical connector.
• Ensure all connections are secure and free of leaks.

5. Clear Codes and Test Drive

• Reconnect the negative battery terminal.
• Use an OBD-II scanner to clear the P0302 code from the system.
• Start the engine and monitor for smooth operation. Test drive to verify that the issue has been resolved.