Here's the low-down: 1990 190E 2.6 with front pwer seats.

The driverside seat has all functions working EXCEPT that it won't reverse! I can go forward but it will stay there. I've been driving with the seat just barely at comfort position (though a pain to get in and out) and moving the seat anymore forward will make it nearly impossible to sit in the seat. I understand it may be a contact issue somewhere in the controls. I've been thinking about one of those cold dust sprays w/ straw nozzle that Office Depot sells or I've read something in the archives about using an electrical spray? But even with a thin nozzle, how does one spray inside the controls? I dunno, it's about time I fix this seat problem.