How do I check the motor for the driver side seat?
The seat does not move up or down on the right rear of the seat. It can go up and down only on the left rear and up and down on both sides of the front. Based on this problem, I'm guessing 4 different motors run just the horizontal part of the seat. The back rest works, and headrest goes up and down as it should.

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87' 300E champagne - Euro headlights and corners, 8-hole rims, 140,000miles/220,00km.