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

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the negative battery terminal to prevent electrical shorts.
• Allow the engine to cool down if it was running.

2. Inspect and Replace Ignition Coil

• Tools Required: Socket set, torque wrench
• Remove the engine cover (if applicable).
• Disconnect the electrical connector from the ignition coil on cylinder 2.
• Remove the ignition coil bolt using a socket wrench.
• Carefully pull the ignition coil out of the cylinder head.
• Install the new ignition coil by reversing the removal steps. Torque the bolt to the manufacturer's specifications (usually around 10 Nm).
• Reconnect the electrical connector.

3. Replace Spark Plug

• Tools Required: Spark plug socket, torque wrench
• Remove the ignition coil again to access the spark plug.
• Use a spark plug socket to remove the old spark plug.
• Inspect the spark plug gap and condition; replace with a new spark plug if worn or damaged.
• Torque the new spark plug to the manufacturer’s specifications (typically around 20 Nm).
• Reinstall the ignition coil.

4. Check and Clean Fuel Injector

• Tools Required: Fuel injector cleaner, cleaning tool (if needed)
• Disconnect the fuel injector connector and remove the injector from cylinder 2.
• Inspect the fuel injector for clogs or carbon buildup.
• Clean the fuel injector using a fuel injector cleaner or replace it if necessary.
• Reinstall the fuel injector and reconnect the electrical connector.

5. Reassemble and Test

• Reinstall any engine covers or components removed during the process.
• Reconnect the negative battery terminal.
• Start the engine and allow it to reach operating temperature.