I just gave my 94 sc300 with 50,000 miles to my sister-in-law. She started to have stalling problems recently and it's been fooling everyone. But here's an idea: I sold Mercedes for over 35 years. I sold a friend an older E300 which constantly fired the check engine light. It skunked every MB dealer from NJ to Fla and back. The warranty company finally quit paying the claims when the cost went over $5000.00. It turned out to be the wiring harness. Those old wires get corroded and quit flowing the proper voltage which the ECUs depend on. After hearing about dealers wanting to replace trans, ecus, maf, I have no doubt it's probably in the wiring. Just a thought. I haven't seen anyone even mention it. Look into it.
