I've just started searching for a 1984 or 85 300D or 300TD, with turbo and preference on a wagon. I saw a very fine example of a 300D tonight, 206K miles, and many of the same problems I've read about on this board. However, the seats got the better of me. I pulled on the height adjustment lever on the driver and passenger seats and nothing happened. How do you work the height adjustments? They seem simple enough but I couldn't get them to work. Do they tend to stick and need greasing or adjustment?