DrVanos now offers their rebuild service for the 1993 - 1999 E36 M3 - 3.0l (S50b30) and M3/MZ3 3.2l (S50b32) Vanos units.The Euro M3 Vanos is well known for having problems with the main seals and O-rings failing, causing various problems such as poor performance, hesitation, or rough idle. There are no less than 19 seals and O-rings within the Euro vanos which are all made from a material not well suited to the heat of the engine. We have addressed these shortcomings by replacing these seals and O-rings with high quality, custom made Viton parts. This material is much more suited to the harsh environment and high temperatures seen in the vanos, and will easily last the life of the engine.
The factory Euro vanos units are also well known for the annoying rattling or diesel sound heard at idle and low RPM's. It needs mentioning that the rattling noise is not directly related to the failing seals, and is a separate issue of it's own. It will not harm the engine and is not an indication of the health of the vanos, but is simply an engineering oversight that can be easily fixed with some minor internal modifications.
Klippet ut fra drVANOS.. Så med mao er ikke noe annet enn ulyden.. Ingen effekttap etc når det er litt tikking i vanos?