driver seat moves only so far forward then stops,moves so far rear and stops, as if it hits something, checked underneath and behind seat nothing there, has anyone had this problem, 2013 sl550

 

The seat will only go so far up and back, but the question is how far up and back does yours go before stopping? You might want to post a vid to show the seat in action.
A few years ago my Range Rover drivers seat would stop within 2 seconds of moving forward. It was a dime that fell in-between the seat and somehow got lodged in the track.

 

checked under seat nothing seat goes almost all the way back but comes forward only 11/2 inches there is still at least 11/2 inches showing on the track its like set on memory works fine then stop instantly and using memory it still travels same distance

 

what happens when you press the button on the seatbelt guide?

see:
https://mbworld.org/forums/sl-class-...er-s-seat.html
https://mbworld.org/forums/sl-class-...h-problem.html

 

i will check that tonight but i think i did pull seat belt when i was working seat

 

worked the seat belt guide seat still moved same distance it still seems like it is on a memory setting it just stops moving got my hand underneath and unplugged the motor will reconnect tomorrow