In Reply to: '88 735i electrical system posted by Rob on April 04, 2001 at 17:12:47:
You'll need: Cable snips, Phillips (I think) screwdriver, 3-4" of rubber gas line 10mm, 2 small clamps for the gas line.
1. Sit it the seat and using the tilt motor, move the one side which is working frontwards/backwards to get it aligned. (You'll have another opportunity as well to align it later.)
2. Raise the seat as high as it will go for easier access.
3. Locate the motor which powers the tilt. It's in the middle right under the front edge of the seat.
4. There are 2 (maybe 3) screws which hold the cable to the motor. Remove these and pull the cable out of the motor.
5. Pull the center drive cable out of the nylon sheathing and set aside.
6. About 5 inches from the motor end of the sheathing (about where it makes it's curve back) cut the sheathing with snips. It's not critical where you cut it, but you don't want it too close to the end, and you want easy access to where you've cut it because of step 8.
7. Snip off about 1/2" of the piece you cut off, on the cut end.
8. Cut about 2" of gas line and slide over the cut end of the sheathing, and over the end of the sheathing still on the car. Butt the 2 ends together and secure with hose clamps over the gas line. You've now shortened the sheathing by 1/2 inch.
9. Slide the center drive shaft back into the sheathing. You should be able to manually turn the drive cable to tweek the alignment.
10. Reattach the drive cable to the motor.
As I say, I've used this method from an earlier post, and it works well, is fast, cheap, and you don't have to remove the seat.