I believe that the spring clip you reference is the clip I see with the mirror folded toward the front. I will get back to it a bit later today when (if) it warms up some. It is currently hovering around zero degrees (f), a bit chilly in our unheated garage.

Thanks again,
Jim

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2005 C240 4matic wagon (daily driver)
87 190D - 225K (on loan)
85 190D - 312K (on loan)
2011 Subaru Legacy AWD (Wife's)