I would appreciate help from anyone with information.

Just bought my first mercedes (1995 S320) and the power lock button on the console does not work. Checked the fuse box in the trunk. The #11 fuse controlling the Central Locking System is blown EVERYTIME the power lock button is hit. Right now the fuse is in and working fine as long as I don't hit the power lock button.
The key opens the doors fine. I can even use the key to lock/unlock all four doors.

Any information on this problem would be helpful.

Thanks!

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1995 MB S320