Hi and thanks to all for information I gotten in these forums. I have just bought a 91 300d 2.5 l turbo diesel. I love the car. Really, often I catch myself gazing out the window at it. I sit in it for no reason. Its fast gets almost 30 mpg U.S. gal and rides nice on the highway. However the ac doesn't work well. When it does work it does not modulate. The thing just blows full cool until it stops and then it does not start again until the next day maybe. Some times after the car sits it will come back to life. I try running it on high or low manual but that doesent work either.
Is there a fan relay that may be fouled? could it be the sampling fan I tried the piece of paper sticking to the sensor by the dome light it did not stick. So I am guessing this may be one of the problems. My questions are
1) where might I find this sampling fan which draws cabin air over the sensor?
2) where is the fan relay.
thanks all for any help....tk