Hey guys, new to the forum and new to Audi. I have a 2000 A4 Quattro with an AC problem. I diagnosed it to be the clutch slipping on the compressor, I dont believe the compressor is bad but I ordered a rebuilt comp and clutch anyway. I also want to replace the filter while I have the system discharged. I am not sure if the receiver/dryer has a filter in it? I found it for $30 so its not a bad idea to just replace it anyway, but I hate to replace it if it doesn't even have a filter in it. Any insight?

Thanks, Kev