Thanks for the info. The repair worked perfectly on my wifes 1985 300SD. I had the instrument cluster out looking for the cruise control speed transducer. Thought I may as well dive into the clock while I was at it. Only took about an hour after the instrument cluster was on the bench. After taking the 3 screws out that hold the tack face plate on, I removed the 3 screws on the back that hold the tack to the mounting plate. This gave me more room to get the clock out without removing the tack pointer. One other thing....The clock has a solder joint on the mounting plate. That is where the clock gets it ground. You have to unsolder this to remove the clock. I still have not found cruise control speed transducer...Where is it??
Roger