I think I've managed to talk myself into giving this a shot... Everything I can find points to this being relatively easy, as far as engine swaps go, so... With any luck I'll be able to pick up both cars next week, assuming I hear back from the seller of the 300 and the dealership with the 190 manages to get their act together. I probably won't attempt the swap right away; I'm sure the 190 has been neglected (a lot of older Mercedes, particularly 190s and diesels seem to get run into the ground in my experience
) and there are a few other issues that I want to address before I go putting another ~50hp and 100lb-ft of torque under the hood, namely the laughable diesel brakes, the suspension (including wheels and tires) and the steering.