Have a terrific 240D sedan with standard transmission and gear box on the floor......shifter/gear box appears to be shot....it gets stuck now in one gear or another and will not disengage despite repeated pumping of clutch and efforts to disengage. Local MB mechanic who is good says that this part is no longer available as OEM and cannot be replaced. He worked briefly on linkage, freed it up, oiled it up and sent me on my way. This lasted for one day or two drives before it seized up again.

Any ideas on how to fix the shifter to make it work properly once again (what parts and where to find them) or where I might get a replacement part to fix this problem. Thanks.

Car has about 140,000 miles on odometer and the rest of the car works just fine but this is a big PROBLEM.......would get new car if I could afford it but between jobs and this is my only solution for now.....