Don't flog me hard-core sdl guys....I'm just seeking some knowledge from anyone that has been there and done that.
After all the money and time spent on my wife's 86 300sdl, only to have continuing problems with exhaust in the cooling system, I am considering ALL my options. This car is WAY too nice to part out although that will be a last resort...tons of new parts, like new tires, near perfect interior. Tearing the engine down again is NOT an option - I have spent way too many hours and found and read too much about constant issues and just don't have it in me to go through this again.
What I was wondering, and again, this is just a trying to consider all my options question: Has anyone ever replaced the engine in this car with a gasoline engine? Maybe a 4.3L? I know the resell value will be gone, but it is already at this point. But would it be possible to do and come out with a really dependable ride that is the master of comfort?
Any input? Thanks!

The price of a gas engine swap will out-do a good used OM603. Keep it stock!

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[GONE] - 1995 Mercedes E300 Diesel - 130k miles - Smoke Silver (702) over Mushroom leather (265) - Bladder blasting, coast-to-coast work machine.

A cosmetically wrecked gas W126, preferably a Gen 2, can serve as a side by side donor, and will yield all the required parts. Selections include 280 and 300 six cylinder cars, and 380, 500, 420, and 560 eight cyl. types.
Pricing may be as low as $250 (maybe less even!). Be there at the right time.

Thanks Frank! I appreciate specifics that I can research and consider!