I picked up a NOS seat back and seat base on ebay a while back. Haven't got around to installing it. Not sure if one would be better off taking a seat to an upholstery shop and having a modern foam base custom made instead of using the original pad. I think the springs in my seat base are shot which makes for a crummy ride. My seat is extra bouncy and easily collapsible.

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Old Blue - '83 240D 6 speed manual trans, OM648
Green Machine - 2001 Europa G500
'87 300SDL Bought on Peachparts
'02 E320 4matic wagon

Patchouli Wagon - 2004 E500 - SOLD
333k mile 97 BMW 750il V12. - SOLD
The Californian - 85 300TD - SOLD
Daily Super Sedan - 03 Audi S8 - SOLD
Family Truckster - 2012 VW Touareg TDI - SOLD