1994 E320 Engine Electrical Chain of Events

[ChipJ]

My E320 Wagon with 135,000 miles went into limp home mode a couple of months ago and the (very good) shop I go to (European Auto Solutions in Waltham) diagnosed the codes and replaced the ETA. Six weeks later the same sort of problem shows up and EAS replaced the brake light switch but warned me that the HFM may also be suspect. Sure enough, now it goes into limp home mode more often, resets after shutting off the car and restarting, and I am probably looking at another $1000+ repair to replace the HFM. Is it just bad luck or are these stupid things related somehow? My wife is ready to trade in the car for something more reliable. Already replaced the wiring harness a couple of years ago.