I know little about MBs much less diesels. My beloved 1983 240D has some problems with doors, fuel flap, and trunk. My fuel flap won't open. No problems with driver door, but Lrear won't unlock by any means; Rrear and Rfront doors usually don't lock/unlock when using key on driver door; gansts flap just began to refuse to open; and trunk, which has never opened with key during my ownership, is no longer opening when I unlock the driver door, and the key won't turn in it - and the button just pushes in with no effect. I understand that there is some sort of vacuum system that ties all of these together, but I know nothing about it. I have just enough fuel to make it to my regular mechanic's on Monday, but I can't even get in the trunk to try the workaround that's been described elsewhere (of messing with some sort of device that opens the fuel door, and is under the trunk lining somewhere?). This leaves me stuck w/o a car until some time on Monday or even after that. What can I do? TX for any help!