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can you guys tell me where the valve is on my 740 il so I can fill with freon.also do I need any special freon for the car .can I just buy it at walmart?
 

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I just looked at www.e38.org and down at the bottom of the page on the left hand side is a section titled "Air Conditioning". There are several articles dealing with the location of the high and low side of the system. Call your local dealer and find out which type refrigerant to use (older cars used a different type than that in use today, R12 I believe)....and then just buy it from them or from your local parts supplier.

You should troubleshoot the system to find out where your refrigerant has gone.

jake
 
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