Moin…a few weeks ago, I removed the shock of my vacuum pump, because the cracking was no longer possible, and a new pump was too expensive. I recently read somewhere in the forum, which you can also completely dismantle the pump. The hole is then closed with a cover (original VAG part). In the article was also the part number, unfortunately I can’t find this one for screwing up…Can one help me? Thank you in advance… Until greeting… Sebastian