broken seat

front seat back will only lift one side up the other will not follow,any help out there

I have a broken passenger headrest and posted almost the exact same question, I got a lot of lookers but No answers. If you do find out about the electric seats andit is a easy repair, please pass along the info.
Thanx
KB528i

It is an easy repair, first feel under the seat for the motor that runs the seat in the direction that it does not move. go to the cable on the side that isnt moving, remove it from the motor, remove the drive cable from the center of the plastic housing, shorten the housing by cutting a piece of it out, generally about an inch, spice the housing back together with a piece of 3/8 fuel line, reinstall the drive cable and reinstall to the motor housing. that will work of any of the cables of this type on the seat. Oh and make sure the seat is level when reinstalling the cable, you can do this by moving it with the cable unhooked.

the 3/8 hose is locked in place with 2 screw clamps.

I have the same problem with my seat but don't understand what the problem is. The motor sounds like it's trying to lift but just can't. Also, why removing the cable then shortening it? Thanks so much for your help.