Thanks for the advice. I went ahead and replaced the driver's seat bottom with a used passenger seat bottom. Works great and feels right.

I posted the procedure here: 190E Swapping seat bottoms

Haasman

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'03 E320 Wagon-Sold
'95 E320 Wagon-Went to Ex
'93 190E 2.6-Wrecked
'91 300E-Went to Ex
'65 911 Coupe (#302580)