Hello, I would like to open a thread here in which everyone who has repaired or replaced his vanos can briefly share his experiences with the others. The replacement of the vanos unit (min 450€ material at double vanos) or the repair with new sealing rings from www.beisansystems.com (under 100€ material) eliminates the bad speed ingress during warm-up on the M52TU engines from BJ98-00. But also with all other BMW 6Zyl. Engines BJ92-06 improves the engine characteristics In order for other drivers to know how the vehicle behaved before and after the repair, only the following should be briefly described: 1. Vehicle type, BJ, km 2. briefly describe the problem 3. Vanos or sealing rings?, costs?, how much work? 4. Vehicle behavior after a run-in time of about 500km? Please ask questions in other threads, as otherwise it will quickly become confusing. Many information e.g. here: http://www.bmw-syndikat.de/…/topic.asp?… Feedback on the sealing rings in the US Forum: http://www.bimmerboard.com/forums/vanos Greetings Jörg