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My bad cat was replaced! (archive)

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Posted by Neil on August 03, 2001 at 14:16:23:

The "gravel bouncing around a tin can" noise that afflicted my car between 1,500 and 2,000 rpm was neither VANOS nor a loose heatshield , but a bad catalytic converter. Not only did it suffer from broken ceramic substrate, but an interior baffle was also loose. My dealer (BMW of Arlington, formerly known as Heishman BMW in VA)replaced it under warranty. Me and my M Coupe are quietly happy once again!

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