Removal & Installation
WARNING: This page does not describe the selected car, but rather 82 other vehicles, including the 2006 BMW M3, 2006 BMW 330Ci, 2006 BMW 325Ci, 2005 BMW M3, and 2005 BMW 745i. However, it is still accessible from the selected car via links, so may be relevant.
- Turn ignition off. Remove nut and bolt. Remove cover. Disconnect plugs from retainer. Disconnect plug connections of positive leads for electronic catalytic converter. Remove nut on negative lead on body. Remove nut on negative lead on catalytic converter. Remove negative lead.
- Cut through exhaust pipe between catalytic converter center muffler down welded seam with a grinder and deburr. Grind off remaining welded bead on center muffler.
- To install, reverse removal procedure. Install new catalytic converter to center muffler with clamp. Ensure nuts point downward. Align exhaust system and clamping sleeve with sufficient distance from adjacent components.