SL/R129: Intermittent heat...'99 SL500
So here's the deal...I've searched the threads and can't find anything to assist in correcting this issue. When the heat is on it will blow "normally" for a period of time and then the fans run full speed but it's like the air is blocked off suddenly and heat sort of 'seeps' out of the vents. Stopping the car, shutting down the system and restarting doesn't seem to help. The ONLY thing that really seems to help is put down the windows and allow the enterior to 'cool off' and like I said that just isn't going to work!
Any suggestions, ideas, help???????



