Hey all me again! Well today i tried to tackle the heater in my S250. Problem is it doesnt blow air hard out of the vents. You can barely feel it coming out. So I pulled the hvac system down, pulled the fan out, and tried to blow the condenser and heater core out with my air compressor. I thought it was better so I put it all back together, tried the fan again and it's worse than when I started! So I think I need to pull the heater core out and condenser and wash them out with water good and blow then out better. Problem is I don't know how to pull them out of the hvac housing. Anybody pull one before? How's it done? Thanks a buch you guys have been super helpful!