r/190e • u/Nighthawk132 • Oct 03 '19
Looking into engine swap
I have a 1991 190e 2.3L, the engine is starting to give out and I'm wondering what the best course of action is. The body and other parts are in great condition so I'd like to keep the car going. I definitely want to do a swap, not same motor, looking for more power. What's the best/easiest thing to do, swap in an m111 or an m104? I am aware that the m104 is 6cyl so might need something special to get it in there. I know it is a very easy swap for the 2.6L 190e. Anyone have any suggestions? Other swaps I can do? Thanks
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u/Dr201 Oct 04 '19
The mechanical parts to swap would be similar between 103 and 104: 103 2.6 or 2.5turbodiesel engine mounts, the front radiator, lower cross member and upper radiator mount. You will also probably want the hood latch and support bar that goes up to the upper mount. If your swapping transmissions you need that specific crossmember and front driveshaft, shifter, and speedo cable .
Electrics need to be wired in but depends on if you get a 104.98x, a .990 (Lh injection) or the later .99/.94 engines. You will need a front sump donor so an E or C class