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  #1  
Old 02-24-2011, 07:55 AM
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Removing part of the exhaust.... my 87 300d

In this picture,



you can see the part of the exhaust I would like to remove. That big tube with the shiny metal on it. My car has the ERG already removed and a cap there, but is there a way for me to just get rid of this pipe all together?

Sorry for my dumbness here, but I don't even know what that pipe is. I think it's something like a catalytic converter? Is the another Manifold available that doesn't have it and if so, does anyone have one?

I figured if I'm going to do all this work to the engine anyways I might as well do all the stuff I like.

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Old 02-24-2011, 08:25 AM
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Item #404 is called a "pipe elbow", item #401 is the "soot filter". It's part of the intake manifold set up.

There was a recall about that, soot filter, consult your local MB dealer to see if that car went through the recall process.
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Removing part of the exhaust.... my 87 300d-screen-shot-2011-02-24-8.20.27-am.jpg  
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  #3  
Old 02-24-2011, 12:35 PM
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That is the replacement pipe from the Trap-Ox recall. You're pretty much stuck with it unless you can find an OM603.971 (W140 S 300 turbodiesel) exhaust setup to swap (entire manifold, likely custom downpipe, turbo plumbing, etc.).
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Old 02-26-2011, 10:25 PM
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That new pipe is hollow (with a heat shield) and circulates the exhaust air around and into your turbo manifold.....for boost. You need to keep it! I would remove the big heat shield on the left side of the engine bay to make life a lot easier working on the exhaust side.
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Old 02-27-2011, 12:35 AM
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The W140 exhaust manifold looks like this:



Supposedly it flows a bit better. Whether that is true or not, it definitely cleans up the exhaust side! I have mine and I am waiting to install it along with a larger turbo. They are hard to come by however. Once you swap it out, you will also have to have the exhaust modified because it will change the location of the turbo.
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Old 02-27-2011, 02:26 PM
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Gimme gimme gimme!

I wonder if my neighbor would notice if I took it off of his daughter's S 300 diesel, ...
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Old 02-27-2011, 07:52 PM
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That is clean and simple! I have not seen that one before - I have to keep my eyes peeled. Is that on many other diesel with the 603?
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Old 02-27-2011, 08:07 PM
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From my notes I have:
91-96 300sd or s350

Mine came off of a w140 body. I have not installed it yet but this one doesn't have the EGR port!
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Old 03-01-2011, 05:27 PM
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Not on the '91 (W126), only on the W140 body.

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