A4 catalytic convertor

2004 AUDI A4
43,000 MILES • 4 CYL • 2WD • AUTOMATIC
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ROGERB363
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There is a metal clanging noise periodically from the engine. I'm being told it is the casing for the catalytic convertor, so it is not a warranty item. Does it make sense to replace this casing?
Jan 7, 2011 at 5:53 PM
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MHPAUTOS
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If the cat has collapsed, it must be replaced as a unit, you can't just do the housing.

mark (mhpautos)
Jan 7, 2011 at 6:28 PM
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ROGERB363
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Thanks Mark, but I may not have described this correctly - I should have said that I'm being told to replace the "shield". I assume they mean heat shield.
Does that make sense?
Jan 7, 2011 at 6:36 PM
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MHPAUTOS
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  • 31,937 POSTS
If there is a cracked or broken heat shield, this can be replaced, just make suer that it attach bolts just have not come loose.

Mark (mhpautos)
Jan 7, 2011 at 7:44 PM
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ROGERB363
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Mark - thanks a lot!!! This is a big help!!!
Jan 8, 2011 at 4:08 AM
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