Palangi,

Why do yuo think the fuel return line is attached to the fuel filter? It is because there is a bleed hole in th etop of the filter to get the air out. Therefore, you don't have top loosen any thing to bleed the air out of the fuel system.

Coldwar,

I also liked the old style filters for the same reasons as Palangi. MB actually recommended cleaning instead of replacing them and had a tool to do it. The tool held the filter and pumped solvent thru the filter in reverse.

If your engine develops full power on a hill, the filter doesn't require cleaning or replacing. Just remove the lower bolt to let any water or dirt out.

You also have an inline filter. The filter is inside an aluminum can with a screw on top to hold it close. The filter screws out of its seat.

Are you sure you don't have a primer pump? I thought all the MB Diesels built before 1986 had a primer pump.

P E H