I wonder if anyone is aware of how often the Air condition system
>needs to be serviced with with oil and freon change. I have a 2000
>Nissan Sentra (a.k.a. Nissan Sunny). One A/C service shop informed me
>that it needs to be serviced at least every 10000km for smooth
>performance of the system. Appreciate any advice.
>Regards
>CJ
There is nothing in the owner's manual regarding scheduled or periodic maintenance of the air conditioner. Seeing that it is a sealed system, and seeing I went to A/C and heating tech school for a year, it makes perfect sense to me that you don't have to do anything unless you have a leak. The only thing I could find was that Nissan recommends you run the air conditioner for at least ten minutes every six months to circulate the oil. If an A/C shop tells you otherwise, they're scamming you.