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06 e320 CDI 245k miles and climbing
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Discussion Starter #1
Guys, have a son in VA with a 97 C280 - WDBHA28E1VF477695 that the wiper does not function at all. The fuse is good, the motor is good, the combo relay was replaced and still no results. Reading around and looking at my MB manuals, it looks like the SAM (signal acquisition Module) could be the problem. Need someone who know more than me to advise. Any way to check the SAM? Where do we get it? Does it need programming? Please help!!

Thanks guys,
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