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Old 12-16-2007, 05:53 PM   #59
Rajaie
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Join Date: Nov 2007
Location: Raleigh, NC
Posts: 1,268
My Ride: 528i 06/00
Quote:
Originally Posted by TX View Post
Does anyone have any estimates of how much power is actually lost due to these seals failing? I think I might be anticipating the replacement for the potential restoration of power even more than fixing the idling issues. If all of the information posted here is accurate regarding the chemical and temperature resistance of Buna, it sounds like each and every VANOS' has its seals pretty much begin failing as soon as they're used. If that's the case, nearly every E46 is suffering from and has been suffering from a noticeable loss of power since early on in its life, no? Maybe these Viton seals will become the next big thing for all of the M52TU/M54/M56 based BMWs.
You've got it! This is the situation.
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