Blue smoke come out of my exhaust, typically in first gear or reverse. But have seen it come out when reving in neutral. I have tried to do a compression test, were everything looked fine. My next step is to check the PCV valve, i think. Does anyone have another leak/bad part that can cause this? Open for all suggestions, might take compression test one more time.
Thanks in advance!

So my 320D e46 has been stopped for 9 years last time it started was in 2024 back in 2018 the car smoked black but way too much and in 2024 the car started with a rough idle and this black smoke