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Discussion Starter · #1 · (Edited)
Just finished the Vanos accumulator upgrade on my 5/2000 for the slapping noise on startup from the Vanos system. It's ashamed that the previous owner didn't have it done. It would have been covered under warranty. I believe BMW made this permanent on models 12/2000 and up. For you guys with cars built before 12/2000 you should check into whether the upgrade was done. It definitely takes the slapping noise away.

Wonder if BMWNA would absorb any of the cost? I'm thinking about sending them a letter. Any thoughts would be appreciated. Thanks.

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