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
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
Other interesting problems are the mind-of-its-own radio antenna, and
the cruise control. I'll cover those in separate posts.