I have a somewhat related question. I am finding some green residue on the ground under where the Air Conditioning Condensation drains out thru the two hoses.. I initially feared it was Green Anti freeze leaking into the air box from faulty heater core o-rings then I realized my Windshield Washer Fluid is also Green but the dripping is not really where the washer Reservoir is located. I then realized it is perhaps just washer fluid from the excessive use due to many insect suicides on my windshield which has been sucked into the air intake at the base of the windshield and is mixing in the air box with condensation and draining out . The residue is not smelling like antifreeze and is not really oily like that.. am I correct that this is probably washer fluid that has splashed up and been sucked into the Air box?
Heck,while I'm asking... With all settings on the manual climate control set to full cold, center wheel all the way down, two dials all the way to the left(blue) and the AC button the Manual says to keep the bottom(foot well) slider slightly open for the temp sensor but I then get Hot Air to my feet which is very uncomfortable in the summer when I want the AC. is this a stepper motor /Mixing Flap issue or it the Heater valves faulty? When I turn the center vent wheel the temp will change but I thought when the wheel was all the way to cold the water valves were shutting completely and should't allow any heated coolant into the Heater Core at all which must be happening if I feel heat to my feet even with all setting to cold....
1995 540i Manual build 1/95