You are head-on.
Removed one of the shims and cooling back to normal.

Thanks.

Yes it's original system came with the car. Can it be the clutch not engaging properly? Before this issue, on & off the belt slipping screeches were heard but not continuously. But cooling was not affected. Now it's not making such noises & the belt is fairly new. The ratio you mention, is i...

Yes, it's an expansion valve system. What could be the reason/s to have high low side / low high side pressures?

It's 1996 june.

Oops. Forgot add.
My car is BMW 525TDS with ND 10PA17 compressor.

Also, noted that with AC off, after about few minutes LOW = 120 PSI & HIGH = 120 PSI.

Hi all, Recently changed my car's AC compressor clutch bearing. All went week & afterwards cooling was perfect for only 3 days. Now the cooling has reduced to a very low level. Here are my observations; Outside temp = 32 C When idling @ 750 RPM low = 75 PSI HIGH = 170 PSI, Interior temp = 27 C 1...

No the car is not in USA.
I have the software and through that only increased the idle RPM. No point in going to the dealer, they don't care about older vehicles.

It seems no one experienced this type of behaviour before.

Hi, My car is a BMW 525TDS diesel . The AC functions normal with very cold air. Since recently when AC on the engine RPM fluctuates up & down. This has no effect on the cooling efficiency but very annoying. I got the idle RPM increased from standard 750 to 800 , but the problem remains. The comp...

Hi,
Did you get the seal tool?
What is the part no for that?

thanks in advance.