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Faults, Fixes and DIY Please share your experience and knowledge with other members by contributing your own DIY, or by helping another member find the elusive fix!


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Old Fri, Jun-04-2010, 03:48:56 AM   #1
excessive
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Thumbs up DIY: Fix your lose VANOS bolts! LOTS O' PICS!

Some of you may have read my Thread about loose VANOS bolts. Well, I decided to go ahead and attempt the DIY repair myself. With the help of a great BMW master tech I met on here, Jorge, I was able to do this without any of the expensive BMW tools. Here is my old thread for reference.

http://www.m3forum.net/m3forum/showthread.php?t=319590

The DIY is found below. I really hope this helps somebody. I sure was shocked to see that my bolts were so loose they were literally being eaten away. It was only at matter of time before the bolts sheared, causing catastrophic engine damage. I am in disbelief that a recall has not been issued for this.

NOTE: SEE POST #93 in this thread for a mini-DIY of how I checked for loose bolts.


NOTE #2: I already put a disclaimer below, but I'm putting another one here as well. I would STRONGLY recommend having access to the BMW timing tool when doing this DIY. It is VERY, VERY EASY to mess up your timing and your whole motor if you are not extremely careful. I just apparently got lucky with mine with I did this DIY. Read this whole thread in its entirety before even thinking about doing this DIY. Honestly, this procedure is probably best left to a professional. If you decide to do it, the BMW timing tool can be borrowed from a shop or members on this message board.

Last edited by excessive; Mon, Sep-27-2010 at 09:41:03 PM.
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Old Fri, Jun-04-2010, 03:49:19 AM   #2
excessive
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Last edited by excessive; Tue, Apr-17-2012 at 01:35:42 AM. Reason: bandwidth limit exceeded
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Old Fri, Jun-04-2010, 03:49:44 AM   #3
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Old Fri, Jun-04-2010, 03:50:04 AM   #4
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Old Fri, Jun-04-2010, 03:55:12 AM   #5
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Looks like fun. Nice writeup.
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Old Fri, Jun-04-2010, 04:05:27 AM   #6
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oh man!! long wait is finallyy ended!!
Subscribed!!
you are a savior!
now i'll take time to read this in details!!
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Old Fri, Jun-04-2010, 04:07:48 AM   #7
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very detailed writeup. the most thorough writeup to date in my opinion. good job. i'm sure this will help others with the VANOS failure.
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Old Fri, Jun-04-2010, 04:31:25 AM   #8
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Very nice writeup. Meticulous sand thorough.

I have one question though, for those of us that don't know much about the vanos system. Can you tell us what the special tools do to the vanos, and which steps worked around needing those tools?
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Old Fri, Jun-04-2010, 05:01:26 AM   #9
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Wow, kudos to you. This is the most involved and detailed write up I've seen. What year is your car? Thanks for taking the time to do this.
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Old Fri, Jun-04-2010, 05:59:38 AM   #10
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Great writeup!
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Discussing DIY: Fix your lose VANOS bolts! LOTS O' PICS! in the Faults, Fixes and DIY Forum - Please share your experience and knowledge with other members by contributing your own DIY, or by helping another member find the elusive fix! at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)