190E Stall/die
 

I have a 1986 190e 2.3 that has a strange problem. (Gremlins I suppose) The car was running fine and then all of a sudden it started to die intermittently. Let it set a few minutes and it would start again. Replaced the following: 1. fuel filter, 2. Fuel pump relay, 3. OVP After replacing OVP, car ran well for about 100 miles. no stall, no die, etc... and then all of a sudden it started it again. I have noticed before it dies that the tach kind of goes erratic!! When it stalls I can crank engine and it will run about 5 seconds, enough to get it off the road!!! This is very frustrating!
Could this possibly be some sort of vacum leak or maybe losing ground in the wiring? I do hear something under the dash like a heater vent or air vent or something with a flapper closing when I let off the accelerator but I dont think this has anything to do with my problem as the car has done this since I got it. Please help. Any suggestions would be appreciated. I am to the point of basically selling the car for salvage if I cant find the problem. I am not going to drive anything that I cant rely on.

Thanks

1980 450SL (best car I ever owned)
1983 380SEL (very comfortable ride)
1986 190-E (not for long)

Check the contact of CPS sensor on the EZL. The EZL is on top of the driver's side front wheel well. Right behind ABS pump (if equipped with ABS).
It's a plug (green wire) on a black metal looking box. Try to check if it is loose. "Open" up inside contacts (with a pick) for good contact.

Vin

My guess would be the ignition coil going bad. Give it a try before you go to extremes.