tom r

I have a 1990 300sl .Beautiful machine but mh.Latest problem is fuse B keeps blowing.This does not happen till the engine runs.The engine runs good.I have a lot of info diagrams etc but can not locate all the gizmos connected to this fuse.Info on cover says,air pump clutch', ac clutch and kick down solenoid,these to me do not seem to be the problem any ideas anyone ,thanks tom r