1991 Mercedes 500SL Issue with the seats only moving forward PLEASE HELP!!!

[ron59b]

Good evening all

My 1991 500SL (94,000 Mmiles) is new to me and I am working the bugs out. Both of my seats will only move forward when using the adjustment switches on the doors. Weather the switch is set to move forward or backwards, the seats move forward. I am lucky that the memory function has one number that is set to move the seat partially back, but not completely.

I have read on the forum about a relay box under the seats. Can someone provide more information on what to check? Is there a DIY method/ hack to move the seats back? Again this happens with both seats. When moving some of the other seat adjustments, the seats will occassionally move the bottoms back.

Thanks for your time reading my rant. Any assistance will be appreciated.

Thank you

Ron
(Richmond, VA)