I'm having the same issue - one of my pins is missing as well so I took it to my mechanic and he said he will try soldering some new pins to the wire's on the body side connector and see if that work's. I was thinking I could try to do this myself so I found a website http://parts.bmwofsouthatlanta.com/showAssembly.aspx?ukey_product=1441869&ukey_assemb ly=257676 that has the pins and I'm just waiting for them to come in i'll let you know what happens.