Hi guys im new here, i just got myself a free merc 307D and its a beast but none of the electrics work and i cant find a wiring loom pdf anywhere so i wandered if anyone knew where i could get one online so i can print it off.

thanks

That's going to be tough. Mercedes trucks are a world apart. If you're in the U.S., there's an outfit called Eurotrucks in GA that might be able to help.