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Old 08-23-2011, 02:03 PM
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Join Date: Jan 2009
Location: Napa Ca
Posts: 75
catalytic converter on 1989 300sel

How can I find out if my cat is bad/going bad? Options if it is...Live in wonderful california!

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Old 08-24-2011, 01:08 AM
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Join Date: Sep 2004
Posts: 9,037
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Well these cats last a long, long time. Mine has nearly 300k and works just fine.

What issues are you exhibiting?
I'm not a doctor, but I'll have a look.

'85 300SD 244k
'87 300SDL 251k
'90 300SEL 325k
'91 560SEL 189k

Eight others from IH, BMW, GM, Ford, and Volvo.

Liberty will not descend to a people; a people must raise themselves to liberty.
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Old 08-24-2011, 01:42 AM
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Join Date: Jan 2009
Location: Napa Ca
Posts: 75
I am getting ready for calif smog and it just sounds funny...a guy told me the cat could be causing it,,, so I am just looking into the possibility of cause. They say over time the little holes get blocked...

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