Hi, I recently had the same problem with drivers seat in my 2006 Reg Mondeo 2.0D Tdci 130 LX 5DR. I read about the problem with the plastic cog wheel, in this section, however, that was not the problem with my motorized seat. I undid the 6 seat mounting bolts, unclipped the electric connection plugs, turned the seat on it's side to get to and remove the seat belt attachment bolt, (which unfortunately, was a quite large headed security type bolt, so you might need one of them), then removed the seat completely out of the car. I found the problem to be that the traverse on the long metal worm drive had obviously gone to far on the uplift. Hence the motor was jammed and just buzzed initially on either up or down selection of the side switch. So I removed the scerated cir-clip by pulling it off with small inserted srcewdriver and back spacer washer, carefully from the metal anchor bracket on the end of the longish metal worm drive, which attaches over a spigot on the corner of the metal lever bar which operates the positioning of the seat. You can then pivot this long worm drive (cos the motor is hinged on a cotter pin) so as to be able to screw the metal anchor bar attached onto this metal worm, a couple or more turns, to get it into a position, short of it's maximum over-travel ( which ever way it may have gone faulty) Then manually and with a bit of force, slightly re-position the leverage bar which is fixed on the underside of the seat, to suit the new slightly modified position of the worm drive and attachment anchor bracket, so that the hole in it will then fit back over the protruding securing stud, so that you realign and re-fit the spacer washer and serated cir clip. Place the seat back into the car and re-attach the connecting electric plug, so that you can test the operation before you fix everything back into place. If it works, then lay the seat on it's side re-thread the seat belt end through the side of the seat and re-attach the seat belt to it's fixing bracket with the one securing bolt. DO MAKE SURE that you have correctly re-fixed this seat belt, securely in it's right position. Then just place the seat onto it's floor mountings and re-fix all 6 mounting bolts. (by the way for these mounting bolts you will find it easy to use both a small No 10 socket set and a 10 m m ring spanner) Again, make sure that the seat is securely bolted to the floor. If this was the nature of your probem, then make sure that you don't try and lift or drop the car seat too far in future!
murphy61, August 2011
