The guy cut and welded a merge to connect the exhaust manifold to the Magnaflow diesel cat. He welded a flange to the cat so it could bolt up to the center OEM muffler. The center muffler is clamped to the rear OEM muffler. The special mercedes-only muffler gasket fits between cat and center muffler.

The reason this was all replaced was that the tailpipe rusted off. There was other serious rust on the pipes from the cat back. The old set up rattled a lot. No sound difference, no mileage difference, but it accelerates better at highway speed. Going from 60 - 80 is much faster now.

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2009 E320 Bluetec 117,000
1995 E300D 306,000 Sold
1996 Ford Taurus LX 130,000 Sold
1985 300TD Still 225,000 Sold
2016 Ford Fusion 24,900

I have used this exact same CAT, but the merge collector in my car is a little ham handed I would say and makes the cat sit about 6 inches to the rear. This flange is supposed to be present in the exhaust for easy servicing, was it missing on your car?

any pricing on the mufflers?..

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2012 BMW X5 (Beef + Granite suspension model)

1995 E300D - The original humming machine (consumed by Flood 2017)
2000 E320 - The evolution (consumed by flood 2017)

The replacement cat was shorter than the original cat. The guy added a piece to the back of the cat and welded on the old 3-bolt flange so it could mate up with the center muffler.
costs:
Magnaflow diesel cat: $100 from Advance Auto or Autozone (I found an internet coupon for $40 off)
Center muffler: $294
Rear muffler: $310
Installation: $180

Mufflers and rubber hangers purchased from Peachparts. The cost of an oem replacment cat was outrageous.
Total around $890.

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2009 E320 Bluetec 117,000
1995 E300D 306,000 Sold
1996 Ford Taurus LX 130,000 Sold
1985 300TD Still 225,000 Sold
2016 Ford Fusion 24,900

Good job, thanks. I'll keep this for future use, if and when.

Jeremy

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"Buster" in the '95

Our all-Diesel family
1996 E300D (W210) . .338,000 miles Wife's car
2005 E320 CDI . . 113,000 miles My car
Santa Rosa population 176,762 (2022)
Total. . . . . . . . . . . . 627,762
"Oh lord won't you buy me a Mercedes Benz."
-- Janis Joplin, October 1, 1970

I have heard that it is pretty easy to clean the original huge CAT with some organic acid solution, never done it though.

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2012 BMW X5 (Beef + Granite suspension model)

1995 E300D - The original humming machine (consumed by Flood 2017)
2000 E320 - The evolution (consumed by flood 2017)