climate control
 

I've read a few post on climate control issues, sounds like a lot of problems:confused: My 1987 300E works like it suppose to but it has to warm up first. Otherwise it is dead not even defrost works first thing in AM.Does this sound like a coolant temp. issue I tried to ground the green wire in climate control this only pegs coolant gauge in dash. What sensor on engine is climate control looking at I can see 3 on head one is a single wire, one is 2 wires and one is 3 wires.:confused: