PeachParts Mercedes-Benz Forum - View Single Post - M103 Idle/Sputter/Stall Intermittent Issue

JamesDean · #12 10-07-2015, 12:22 PM

Hi Benz Mondi!

When you say DTC plug, are your referring to the round plug on the driver's fender? I think its also called X11 port. If so, that was one of the first things I checked. It was reading, at op temp, at idle, floating between 19-25%. If memory serves fault codes are read out as solid percentages. I.E stuck at 50% would mean O2 sensor fault.

19-25% is pretty rich if I recall correctly.

I do also have this issue where the car, when cold, never wants to start up on the first time. It'll stall out immediately, second time it will start but run harsh until rpm's pick up. Then its fine.

Awesome news on the cruise! I'm glad to hear it! My 190's was one of first or second units I did, its still running! My 300D's has the most miles (of any that I know of) at 71K, still going strong!