2.3-16 | A3 2.0T | 986 Boxster
Welcome to the forum. I'm confused... You took you car to a diesel mechanic to have it fixed. He band-aid fixed it and it failed when you got home. Then you go to the junkyard to find a fuel pump and the yard attendant tries selling you a new motor. I'd believe the mechanic, unless the yard attendant is a MB diesel expert. I don't know what would be "lifted" besides a fuel line that would cause the pump to fail. You are sure it's not the injection pump? I can think of several things you can lift on the IP to get it running. A new fuel pump should be $200 or less, a new IP I bet, is well over $1000. Besides cold and a bad glow plug system the next thing that would prevent a diesel from starting and running is air in the fuel system or a vacuum leak (which would put air in the fuel system). Is it an auto or manual? How long have you had this diesel?