Ignition Switch Plug Retaining Clip, HELP

So I was working on my ignition switch on my E39, in the cold, I guess that little retaining clip that you need to slide out to unplug it didn't like the cold and broke. Is there a part number for a new one??? Been looking on realoem and can't seem to find anything.



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This is it here, that little tab you pull out. Mine isn't fully broken so it still works, but it's bugging the hell out of me

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Ignition Switch Plug Retaining Clip, HELP