Help! What's Missing in the Picture?

[Koopman]

I am trying to repair this E9 manual window regulator but don't know what's missing?

Thanks in advance.

 

[bavbob]

Harry, bring it to me when you are in town, you have some broken bits. I think you know the coil spring is also missing since I saw you inquired about one for sale.

 

[Koopman]

Thanks Doc. See you soon.

 

[Wladek]

Harry, as was said - middle rotating pin & spring is missing.
Pay attention, if i remember correctly - springs from rear window mechanism are not interchangeable with springs from door window mechanism (different clock position).

 

[Koopman]

Thanks so much. The best photo yet.