air conditioner upkeep
i live in AZ and it is alrdy in the 90s currently. I bought my 740i 2010 August and no problems in 2010 and the summer of 2011 no issues. but I want to make sure I do the proper upkeep for the AC.
anything I need to know? coolant is always full
the car make a slight "hum" noise but no real issues, blows ice cold.
do I need to regas it ever?