BMW X5 AC problem

[upallnight]

Originally Posted by AceWynn

Hey guys,

I'm having trouble with my 2002 bmw x5 that I purchased back in March of 2010. I'll start off explaining the situation and hopefully I can get some input.

My AC start off being a little cool on the drivers side and the passenger side was running warm. I added more refrigerant in there and the AC was cool on both sides. After having it run for pretty cool for a month or so, it just stopped be cold. The AC is blowing as the same temp as it is outside of the SUV. I researched it and this site came up and many folks suggested a aux fan replacement and also replacing the FSU, which i did. It still blows hot.

What should I try next? I rather not take it to a place to look at it because most places around my area charge for looking at it and I'm planning to fix it myself to save on costs. Any suggestions would be a big help. Thanks!

Buy a manifold gauge set, not the single gauge that you get with a can to recharge the system. Connect the gauges to the system and tell us what the low reading, high reading and ambient air temp was when you took the readings.

Buy a refrigerant recovery machine to recover any refrigerant in the system. Replace the defective part(s) base on the pressure reading that you got.

Buy a vacuum pump to evacuate the system for about an hour. Shut off the pump and wait another hour to see if there are any leaks. Locate any leaks and vacuum the system again. Once you have confirmed that the system is not leaking, buy yourself a set of accurate scale to weight the refrigerant as you recharge the system. Only put in the amount of refrigerant as specified for your car.

Don't want to spend all that money to fix the ac system, drive with the windows opened.