BenzWorld Junior Member
Date registered: Jun 2010
Vehicle: 1997 E320, silver
Location: Columbia, SC USA area
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OK, will move the post. I am not up on 'W' numbers although I remember W196!
Actually, it is the anti-theft pin that drops into place if the key switch, etc. is 'tampered with.' In this case, when my son finally succeeded in removing the old tumber, he had trouble installing the replacement, which seems related to this pin, which must be drilled out.