My 500E doesn't have the electric rear window sun shade and I'd like to retrofit one.

Does anyone know how easy or difficult this is and what the cost of the OEM part is?

Also I'd like to see some pics of the original part.

Flavio

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1993 Toyota Supra MKIV (6-speed Targa top) - SP67 Single Turbo - 540rwhp (with SP57)
1992 Mercedes Benz 500E (Almandine Red) - complete E500 look - 268rwhp
2001 Alpina BMW D10 Biturbo diesel sedan - 245bhp

'search'- there's posts on this subject with USD dealer costs

I'm aware that the parts are readily available but very expensive from the factory.

Perhaps the used route maybe of interest. But you'll need at minimum:
>rear parcel shelf (sunshade shelf is different vs. standard shelf)
>sunshade
>motor
>armature assemblys
>rocker swith
>wiring

I wanted to add this to my '94 E320 Coupe and figured that the cost route (new + labor to install) was more than it was worth.

good luck
-fad