My 95 e320 wagon's check engine light came on a while ago... Around the same time my built-in phone system (Benz part above the rearview mirror) started going wacky and sending me random messages and the antena would go up and down randomly. There is no phone in the car, although it had a factory phone installed in the armrest compartment.

I remove the phone system fuse near the battery that stopped the messages and the antena problems, however the car stared idling poorly when coming to stop or decelerating to go around a corner. The idle smoothes out again after about 10 second, and then the car runs perfect again. It doesn't always do it.

I made the code reader as described in the forum and pulled the following codes;
Pin 4 code 10
Pin 8 code 4, 13
Pin 14 code 11

The wiring harness looks poor around the temp sensor. It probably has not been replaced.

I realize I should replace the harness first, but since the car actually runs great except for the 10 seconds of poor idle when I come to a stop, maybe someone can tell me what I am facing based on the codes....

One other thing; the cruise control used to work perfect but it now is sporadic, sometimes it works, sometimes it doesn't.

Thanks in advance