Cracked Manifold c230 Kompressor 1999 - Mercedes-Benz Forum

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post #1 of 2 (permalink) Old 08-25-2009, 12:16 PM Thread Starter
BenzWorld Newbie
Date registered: Aug 2009
Vehicle: c230 Kompressor 1999
Location: south africa
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Cracked Manifold c230 Kompressor 1999

As a newbie, Hi. My c230 Komp 1999, with 80000KMS has 3 cracks in the welded by MB repair shop...reason they say.." heat"..which i do not believe. Any comments or suggestions? I never saw the cracks (pre or post repair)..the car was just idling a little rough at funny blowing noises! Cheers. Milez
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post #2 of 2 (permalink) Old 08-25-2009, 12:31 PM
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Date registered: Jun 2008
Vehicle: 2000 w203 c200k (Yes, it's a w203 from Germany)
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They do crack because of heat. They can heat up, want to warp, but they are bolted or restricted, so they crack. Can also happen while unevenly cooling.

Hopefully the weld was done right. They need to drill the ends of the crack to stop it, and heat the manifold before welding in an oven, or something, and then let it cool gradually after the weld job, then plane the mating surfaces.
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