OMG!! that was my problem. the dealer told me i was crazy and said they fixed it. 4 times. then they finally put an entire new heater in the car and it has been fine ever since. what a nightmare that was. the car was at the dealer 5 weeks of the first 8 i owned it. i did extensive research. contact me offline at
[email protected] (only spell it correctly) if you want the info. maybe i can save you some trouble.
(did you buy your car in march of last year? so did i. maybe they were manufactured around the same time and there were a bunch of bad heaters in the batch in mexico? just a weird thought.)