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Old 07-07-2012, 04:40 PM   #1
Registered User
Join Date: Apr 2011
Location: Albuquerque, NM
Posts: 171
My Ride: '00 323i, 07 TL-S
So I have a bad vanos

So the rebuilt motor I bought and installed a week or so ago obviously wasn't rebuilt right. After a week of driving, and having a gut feeling about it, I rediagnosed it at my work. and of course, a long laundry list of faults got pulled up. The obvious ones I knew of before hand were from my headers, I have yet to intall the O2 sim, but on top of that, I got about 6 vanos related faults from both intake and exhaust.

The diagnostic machine was pretty cool, it showed the postioning of both vanos solenoids in real time, and I found that the exhaust side is faulty and not moving at all.

This whole engine replacement has been probably the biggest F up and headache I've ever dealt with and am getting tired of having one thing after another get in my way of getting my car running legit again. Anyways, I happen to have my old vanos, which I had a feeling would come in handy, so my next plan is to try to swap them out.

I have read the beisan vanos seal replacement diy, and am just wondering how many of you have done it. Are there any snags involved with removing/installing a vanos? I know they are very delicate and the last thing I wanna do is destroy another motor. I plan on most likely replacing the seals in my original vanos then just swapping the whole unit over. Any input from experience would be much appreciated guys thanks again!

Last edited by threetwentyfizzle; 07-07-2012 at 04:53 PM.
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