I had decided a while ago to repair the Vanos with the Beisan kit. On this page I put up the pictures on taking apart the engine parts to access the Vanos.
The Beisan Kit instructions are online and I believe that anyone can tackle this job. just takes some time but otherwise it is easy to do.
My pictures are in addition to the Beisan kit instructions. The Beisan kit includes all O-rings that get replaced and you you option for the anti-rattle kit you will get the 2 thinner machined rings.
The pictures are in order from left to right, as you go down. This should visually help you with the Vanos job.
Remember that the picture that says “Reverse torx bolt” that means the bolt needs to be turned to the right to break loose, righty loosy.