3-Series (E46, E90)Chat relating to the BMW 3-Series from 1999 to Current. Models include: BMW 316i, BMW 318i, BMW 318Ci, BMW 320i, BMW 323i, BMW 325i, BMW 330i, BMW 328 Ci, BMW 328i, BMW 325i/xi, BMW 330Ci, BMW 320d, BMW 330d, BMW 335d.
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My 01 330ci started acting up a few days ago. First the passenger half stopped cooling and now the driver's half of the a/c is slowly warming up. the fans sound like they are running. it does not have dual zone temp control, however this is how it started to mess up.
when the refrigerant charge gets low sometimes 1 side will cool more than the other. I would get it to a qualified repair shop and have the refrigerant level checked and then go from there.
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A/c Issues 
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