w211 diagnostic socket battery drain

Discussion in 'Electronics' started by 4life211, Oct 5, 2016.

  1. 4life211

    4life211 Hardcore MB Enthusiast

    Jul 14, 2015
    mercedes 211
    My E270 cdi 2003 had battery drain .When tested with amp meter it drops to 0.18A.then I followed the procedure of removing all fuses 1 by 1 .The fuse of "Diagnostic socket" seems to be the one ,it drops to 0.03-0.08A .Why is Diagnostic socket cause this problem ???

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