The cheapest way to solve pulley noise from AC Compressor is to bypass the pulley itself with the shorter size of the drive belt. In my case, the AC Compressor pulley not only worn out from the bearing but also the AC Shaft Seal and Seal inside is also leaking! To change all seals is not so cheap and easy DIY for me much and anyway, I don't use AC for 5 years already.

I decided to only spend 10 Eur just to buy a new shorter belt and it works very well!

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