I did get a spot of rust back there; as I understand it the window gasket back there shrinks & lets in water that stays right in that area.

I had the window removed, and the area properly repaired. No recurrence, and it's been a year

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"If God had meant for us to walk, why did he give us feet that fit car pedals?" Sir Sterling Moss

Michael
2014 E63S Estate
2006 SLK55
1995 E500
1986 Porsche 944 turbo