I made a recent thread about an oil pressure warning in a 2004 Audi A4 3.0 V6.
https://bobistheoilguy.com/forums/ubbthr...arn#Post4641862
My plan is to replace the sensor first (~$15). If that doesn't work, I am dropping the pan and cleaning the pump screen as well as an oil change. (I normally use vw502 oil and a Mann filter.)
Would there be any issues with a few short cleaning OCI's with a 5w30 synthetic? A Mann filter would be used. I have a large stash of the stuff and let's face it, it's less valuable then an A3/B4.