I'm having a problem with the check engine light.
The light will come on when the weather (SF Bay Area) (warm and dry except during the winter) changes to colder and more humid. The light was on and while the car was in Nevada, i.e., dry environment, for a weekend the light turned off by itself. If the light is turned off by a service tech, the time delay before it comes back is directly related to the environment - the colder and more humid the sooner it will come back on.
MB has looked at it several times. The codes doen't seem to be consistent.
One time the codes were: 004, 019, 035, 084. Another time the service tech wrote:"found trouble codes for fuel injectors, air injection pump, collant temp sensor, and o2 sensor. Only symptom is air injection pump is running at all times. Installed new sensor but problem continues. Suspect engine control module is faulty - suggest replacement. Estimate = $1860."
My intution says moisture is getting somewhere that it shouldn't. Before I allow the stealer to throw parts at the problem, I wonder what you all think.
Other interesting problems are the mind-of-its-own radio antenna, and the cruise control. I'll cover those in separate posts.
Thanks!
Rod