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International Automotive Technicians Network
Re: 'Fracture' (use once and throw away) connecting rods
Posted to Technical Discussion Forum on 7/25/2018

I think it's a Mercedes thing. This is straight out of Chrysler service info for a 2007 WK with a 3.0 Mercedes diesel:

WARNING:The connecting rods are not serviceable, and must be replaced every time the end caps bolts are loosened or removed. Otherwise, the... Login to read more.