Originally Posted by Jack M

Hello to all you mechanical minds. My 560Sl 1986 Speedometer just plain stopped today. Working fine all day, looked down after turning on the lights and needle is at 0mph. The odometer and Tach work fine, all other gauges work fine.

I understand this is an electrical speedo. is there a fuse that may be an issue? What fuse number should I check??

Other suggestions appreciated

Thanks, Jack M.