how to fix the catalytic converter issue in my BMW X3 G01 (2018-2024)

Solution

1. Preparation

• Gather tools and parts required for the repair.
• Disconnect the battery (negative terminal) to ensure safety while working on electrical components.

2. Remove Exhaust Components

• Tools Required: Socket set, wrench set, penetrating oil.
• Apply penetrating oil to exhaust bolts to prevent rust damage.
• Remove any heat shields covering the catalytic converter.
• Unbolt and remove the exhaust pipe sections connected to the catalytic converter.
• Carefully detach the catalytic converter from the exhaust system.

3. Inspect and Replace Catalytic Converter

• Examine the catalytic converter for signs of clogging or physical damage.
• If replacement is necessary, install the new catalytic converter according to manufacturer's specifications.
• Parts Required: OEM catalytic converter or high-quality aftermarket converter.
• Use a torque wrench to tighten bolts to manufacturer-specified torque settings.

4. Reinstall Exhaust Components

• Reattach the exhaust components removed earlier.
• Ensure all connections are secure and properly aligned.
• Reinstall any heat shields that were removed.

5. Reconnect Battery and Clear Codes

• Reconnect the negative battery terminal.
• Use the OBD-II scanner to clear any stored error codes related to the catalytic converter.