I just purchased a '97 SL500 40th Anniversary, and reading in the manual it talks about having to re-syncronize the windows and the soft top in the event of a power failure.
Do you have the owners manual? If not, I will read it and reply back tomorrow>

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Regards

Mino Erhan Dallas, TX
'97 SL500 40th A.E.
'97 S320
'01 ML320
'85 Peugeot 505 SW
'07 BMW R1200RT
'74 Suzuki GT750