1. beanie

    Honking noise and more - M52TU PCV, Disa?

    Hi all, I recently noticed this noise on our 2.0 M52TU. The rhythmic honking/beeping noise I assumed to be the PCV, but when revved there’s a rough, rattly sucking kind of noise. I haven’t checked the DISA in quite a few years but I don’t remember the car making this noise before. It only...