You should post this question in the SL section of this forum. You said everything got "reset". Can you synchonize the windows? 129 SL's over the years have several different versions of the soft top controller and roll bar controller which are all "reset" differently. I believe that in 1998 you can still read codes which will indicate where the fault in the system is. It is highly unlikely that just changing the battery has damaged the controller, they are not that fragile.

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