failed catalystic converter

2003 BMW 325I
76,000 MILES • 6 CYL • 2WD • AUTOMATIC
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ERAHME
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  • 1 POST
HOW I KNOW IF THE CATALYST CONVERTER IN MY BMW 325I 2003 IS BAD?
May 28, 2011 at 9:02 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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RASMATAZ
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Get a 5gas analysis test this will tell if its scrubbing the gases or not-
May 28, 2011 at 9:30 AM
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WRENCHTECH
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Also, your car's PCM monitors this for you. It will set a code PO420 or PO430 for the other side.
May 28, 2011 at 11:46 AM
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DOCHAGERTY
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And report back here straightaway with the readout numbers from the 5 gas analysis.
Jul 5, 2011 at 9:38 PM