I posted this issue a while ago and I have a couple more questions. While working on the center vent of the 85 300d, I broke a small fingernail sized circuit board attached to a small wire. Consequently, I have to now keep the air conditioning in Max mode to get cold air. Any other setting on the wheel blows hot air. What type of sensor did I break, where is it located, and where can I buy another? Anyone have a different solution?
85 300d W123 188k miles