Seat Problems

[MBFAN]

I have a 1992 SL. For some reason, after not driving the car for a couple of months. The battery went flat and since then lots of electrics gone haywire. Drivers seat gone adjusted backwards and will not come forwards again. Outside temp showing +50 degrees (dont think my garage is that hot)!

Any advice have charged battery and reconnected - still same.

How do i get to the electric motors under the front seat squabs to check for connection problems?

thanks in advance
Stuart