https://www.tunemyeuro.com/bmw-335d-x5d-valve-cover-gasket-kit-vcg-aar2336/
If your car is leaking oil and your turbos are not working, you may just need to replace your valve cover gasket! Check out TuneMyEuro.com for all your European diesel needs!
Here is the link to the Vacuum pump seal how to video
https://youtu.be/_jBspbeV8U4
new J-line with 4 new washers
https://www.tunemyeuro.com/j-oil-feed-line-kit-oil-distributor-to-hp-turbo-for-bmw-335d-x5-aar2225/