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  #1  
Old 05-15-2009, 01:28 PM
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1987 300TD Flex Pipe

Mine has broken. What options do I have. Does anyone know the diameter of the exhaust inlet and outlet for the flex pipe?

The Mercedes part is WAY too expensive!
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  #2  
Old 05-15-2009, 01:57 PM
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I was able to find a flex repair pipe at Napa - you may have to order it based on the diameter you need.

The part I purchased was about $35 - it looked exactly like the OEM Ford part it replaced - I cut out the old and welded in the new, sold the car to a friend about a year later - it's still nice and quiet.
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Old 05-15-2009, 02:52 PM
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What Size was the flex pipe? Inlet and outlet?
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1987 300TD 440K - My car
2005 Jeep Grand Cherokee Laredo 107K - Tim's car
2000 - CLK320 100K - Deb's car
1994 C230 150K - Josh's Car
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  #4  
Old 05-15-2009, 03:06 PM
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the inlet and outlet where the same diameter.... I believe it was 2" but it's been a long time - I'm guessing Napa likely has them available in several different diameters.
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  #5  
Old 05-15-2009, 03:11 PM
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I just welded in the flex pipe on my 84 300SD (126). I got a 2.5" flex piece and it was the same diameter as the pipe the flex tube butts up against. I'm not sure if your 124 is the same but I would guess that it is the same size.

Then I just cut the old flex pipe out, grind the edges clean and welded the new one in place. I attached the ends of the pipe on both sides (engine side and rear side) and just tacked the welds from flex pipe to tube. Then I took it off and welded the rest together.

A whole new section would cost at least $125 (cheapest I found online). I did it for about 1/10th of that.
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1982 300TD
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1998 E430
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1980 300SD
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  #6  
Old 05-15-2009, 04:09 PM
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Just got back from NAPA. No luck. They only go to 2" on their flex pipes.
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1987 300TD 440K - My car
2005 Jeep Grand Cherokee Laredo 107K - Tim's car
2000 - CLK320 100K - Deb's car
1994 C230 150K - Josh's Car
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  #7  
Old 05-15-2009, 04:26 PM
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Quote:
Originally Posted by jfikentscher View Post
Just got back from NAPA. No luck. They only go to 2" on their flex pipes.
First thing you need to do is double check the size. Wait until the exhaust has cooled and measure the circumference....then do some math. Or measure the diameter of the split portion.
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2004 E320 Wagon

Past Mercedes
1979 300TD
1982 300TD
2000 E320 4Matic Wagon
1998 E430
1984 300SD
1980 300SD
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  #8  
Old 05-15-2009, 08:43 PM
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See if this is any good then let us know -

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=320176133449

The nice thing is it doesn't have a cat. The not nice thing is it might not be a bolt-on deal if it has a trap style 3-bolt flange for the muffler pipe. MB might have changed the flange position too. And JimmyL will take you to task on 300TDT

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87 300D
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