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I'm installing some full leather 14 way heated full leather comfort seats in my 997.1 and all went well until I tried to activate the forward/aft movement of the drivers seat. (I should note that the seats I am replacing had the same functions as the ones I'm installing but were only partial leather.) All the other functions seem to work, but the left side (drivers) rail will not go forward or backwards. The right side rail moves normally. These seats are supposed to be a plug and play according to the Porsche parts catalog, so I'm thinking a motor problem might be the issue. There are three (3) motors on the bottom of the seat and I am unsure which on controls the left rail. I've got a replacement motor on my old seats, so parts availability isn't the issue. Any ideas Loren???

Thx,

Lyn

 

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my initial suggestion would be since you have the other seat, disconnect motor, and swap it to the new seat. see if it fixes it. 

 

however thinking on it more I've rewired my seats after the plugs were removed by PO but I luckily didn't have to deal with motors but my guess, is that each motor is for a different axis of movement. so it's more likely you've got a cable or wire disconnected or crimped. I would guess fore/aft is one motor for both rails and that rail is simply not connected to the work drive? 

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So after looking at it closely, I have determined that the jack screw on the left side rail of the driver seat is jammed. The motor was strong enough to twist in half, the cable from the motor to the screw jack on the rail. The rail does not appear to come apart, so I'm a bit lost as to what to do. I've taken the seat to an upholstery shop for evaluation and they speculate that a coin has slipped into the track at some point and is jamming the jack screw. They'll try and free it up, but no guarantees.Bummer

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In answer to my own question, there was a dime in the track. Once that was removed and a new cable (997.521.901.00) installed, it all works well now.  

The cable kit was over $100, which is a pain, but after all it is a Porsche.

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