S-Class (W220) 1999-2006: S 320 CDI, S 320, S430, S 500, S 600

W220 S Class Catalytic Converter Write Up

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Old Mar 20, 2014 | 09:19 AM
  #26  
wallyp's Avatar
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From: Ball Ground, GA (N of Atlanta)
2003 S500 2007 GL450
Sometimes you can hit the cat with a rubber or dead-blow hammer to see if it rattles.
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Old Mar 1, 2016 | 12:37 PM
  #27  
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S320L 2001 W220
Originally Posted by CarboyS
How do you go through inspection (smog, emissions, etc.)?
I went without trouble, emissions within OK range, without two rear carbs
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Old Mar 1, 2016 | 04:07 PM
  #28  
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From: Aurora, CO
06' W220 4MATIC (sold) 08'ml63 AMG
A common thing from the import tuner world is to have the cats installed with a flange on each side and have them sell you a straight "Test pipe" for ummm.... Dyno Testing This makes an easy swap.
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Old Feb 7, 2018 | 08:57 AM
  #29  
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From: South Florida
2005 S500 4Matic
Originally Posted by shellshock
Mine were rattling, and I had them removed and straight pipe installed in place. Total cost = $30.

Exhaust sounds exactly the same, minus the rattle!
I know this is a super old thread but I am having the same rattling on my 2005 S500. When you went to straight pipe, you didn't have any computer codes or any problems? Also, no loud exhaust noise?
Thanks for the help
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Old Jan 3, 2019 | 08:50 PM
  #30  
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S55 AMG
Universal Fit

I have the right side going out (probably soon to be followed by the left) The mechanic I was talking too side it would be difficult to fit universal's. Does anyone know if this is true. I'm considering using the Walker 82503 and 82600 units. Is there anything unusual about the OEM units? From the earlier posts, there doens't seem to be an issue. I am in California though.
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