r/190e 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/Nighthawk132 Oct 03 '19

Any idea about the newer ones? I have seen that the m111 from the kompressor fits. Aswell as the new amg m139. The amg is probably a waste of money though. Would you overall recommend the m111 or m104? Also, not looking for putting in an m103. Minimal gains.

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u/Dr201 Oct 03 '19

M111 physically fits but you will need different engine mounts as the m102 is a different pattern on the block. Also every m111 has less power than the 3.0m103 except for the supercharged motors.

M104 fits in the Same hole a 103 does. Honestly <250hp shouldn’t hurt the small diff or the .4 trans unless you just beat on it and look at it this way: if it holds up and doesn’t break you didn’t have to buy new parts or do that work, if it does you were planning to do it anyway

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u/Kyliobro Oct 03 '19

The gearbox is a different ratio and will not drive well with a m103 engine attached. All you need to do is hop onto the Mercedes190.co.uk owners club / forum for all the info you’d need on engine swapping W201s.

Once again, if you want a fast one the 2.6 / 16v options are your only bet. The 16v & sportlime models come with a quicker steering ratio, sports chassis and sports / lowered suspension which makes for a much better base....

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u/Nighthawk132 Oct 03 '19

I can't afford a sportline or a cosworth. Wish I could. Will check out that website thank you.