Hello Everyone, The other day i got in my 2004 300m and i was getting no heat at all, just cold air. The temperature was going up normally and there was plenty of antifreeze and it was not overheating. It was like that for a few days. Well the other day when i was in it I messed with the climate control and put the temp all the was down to low and then back up to high. Low and behold the heat started blasting HOT and has working ever since. Is this something i should be concerned about? Would this be the actuator starting to go bad? Should I just let it go and see what happens? Is there any knowledge base on procedures to replace? Thanks!
Somewhat common and annoying for the blend door actuator to hang up. All summer in A/C mode now asked to provide heat.
There is a reset procedure in the KB that may work.
Last 2 years of my Pro-Am’s life even the family knew the reset procedure. I was just to cheep and lazy to change the Blend Door Actuator