I want to share some information. A week ago something happened with my Volvo. The engine began to run unevenly, appeared to vibrate, and the oil consumption increased. And a whistle can be heard under the hood. I went to the nearest car service. The problem was in the torn membrane. I found a website with repair kits and I bought the membrane. It turned out it can be changed separately, it not necessary to buy the valve cover assembly. I ordered here https://vanos-bmw.com/product/membra...ine-oil-filter. And there are instructions for installation. I saved a lot of money.