Mechanics

CATALYTIC CONVERTOR

2004 Audi A4 • 4 cylinder 2WD Automatic • 43,000 miles

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?
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Rogerb363
January 8, 2011.




If the cat has collapsed, it must be replaced as a unit, you can't just do the housing.

Mark (mhpautos)

Mhpautos
Jan 8, 2011.
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?

Tiny
Rogerb363
Jan 8, 2011.
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)
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Mhpautos
Jan 8, 2011.
Mark - thanks a lot! This is a big help!

Tiny
Rogerb363
Jan 8, 2011.

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