DIY M52 M54 引擎的雙可變氣門升級油封（Twin Double Dual VANOS seals repair upgrade kit）

[完顏明]

作者: djzeke

我是看到國外網站下面這一段寫的，請ST大大你可以斟酌考慮換了吧，
所以我認為應該已經內漏了，拆下來沒內漏的話，來鹿港我請你吃道地小吃。

The following is an E46 & E39 double vanos piston seals R&R (remove and replace) procedure.

If the valve cover gaskets are over 40k miles (64k kilometers) old, then it’s prudent to replace them during this repair. If they are over 80k miles (128k kilometers) old, then it is a requirement to replace them during this repair, otherwise they might leak due to being dismounted and reused. These gaskets have an estimated lifespan of ~60k miles (96k kilometers) and replacing them during this repair requires no extra effort. The needed parts and replacement procedure are included as optional.

大哥也住鹿港啊．．．