If it's the same as a 123, the line with the threaded fitting is the fuel feed line, and the one fastened with just a hose clamp is the return line. The feed line should be threaded into the strainer, which is, I think, about a 46 mm hex.

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Palangi

2004 C240 Wagon 203.261 Baby Benz
2008 ML320 CDI Highway Cruiser
2006 Toyota Prius, Saving the Planet @ 48 mpg
2000 F-150, Destroying the Planet @ 20 mpg



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