Anyone out there know how to remove the side mirrror housing on a '97 E320. I've been monkeying with it all day.

I have the touch of blacksmith, and I'm afraid I'll break something off (the car).

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'97 E320 Black Opal
'86 300E Smoke Silver / Burgundy (retired at 198K)
'63 Austin Healey 3000 Mk II (BJ7) (reluctantly retired)