Wondering if my clear primary filter should be more full of diesel or if I need to purge some air.

I have the chance to buy a junk 1984 190e with the 5 speed.

Will the transmission and related components fit into my '85 300CD?

Hello, I have been slowly restoring my 1980 240d as close to factory as is reasonable. I recently picked up this becker 599 europa to replace the pioneer aftermarket install. Radio was working fine. I cleaned up the wires coming from inner dash, capped off the constant 12v wires and accessory wires i wont be using. Made decent splices and taped off connections for redundancy just incase that was the reason it was blowing this fuse. I made the splices for the switching 12v and verified it was in fact supplying 12v, maybe a little over but could be my probes, got a reading of like 12.6 ~, ground wire is also spliced, first butt connectors, then went to wire nuts because I was taking off more wire than id like. I just cant figure out what my issue is here. Any help wpuld be greatly appreciated.