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post #1 of 6 Old 2nd March 2019, 02:31 PM Thread Starter
clee911
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BMW software for VANOS removal

Does anyone in the DMV area have the BMW software to help setup the engine for the vanos removal? I need to send it away for a rebuild but need a hand with the procedure. I am in the Arlington, VA area. Thank you in advance.

James
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post #2 of 6 Old 16th April 2019, 01:26 AM
kikimouse
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Was your Vanos Cap oil leak resolved?

Hello James,

I saw your M5 Vanos cap oil leak post.
Was this resolved?
Or are you rebuilding your Vanos due to this issue?
My e46 M3, which uses same Vanos cap, has exactly same issue.
I replaced my Vanos from Dr. Vanos 6 years ago and this issue developed now.
No engine code. Just bad leak from exhaust cylinder cap.
Let me know what you had to go through.
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post #3 of 6 Old 16th April 2019, 01:45 AM
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Nevermind. I saw your post saying you had to replace not only the o ring but also the cap.
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post #4 of 6 Old 16th April 2019, 02:26 AM Thread Starter
clee911
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So miraculously that has been resolved. I’ve been dealing with a slow leak in the cap for years and have been able to patch it with some sealant before repeating the process every few years. This time the bolts holding the cap broke (spraying oil everywhere) so I had my mechanic pull out the broken thread.

I had plans to send the unit to Dr. VANOS for a rebuild but asked him for a set of end caps and new O rings as a cheap fix just in case. This worked and hasn’t leaked in the last few weeks.

Send me a PM with your info if you want to chat about it some more.
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kikimouse (23rd May 2019)
post #5 of 6 Old 23rd May 2019, 12:39 AM
kikimouse
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Hello Clee911,

Sorry for posting reply here. (I wasn't able to send you PM.)
And Thx alot for your vanos oil leak posting!!!

This is kikimouse (Kyung).
I have an e46 M3 that had vanos cap oil leak. (exactly same as your M5 oil leak.)
I think my car have same part for vanos cap and cap oring as your M5. I just have less since it is inline 6.
My vanos is from Dr vanos (replaced 7 years ago) and it developed slow leak 6 months ago at the cap, and it became really bad last month.
And, thx alot to you, I found your post, and I fixed it.
I ordered the whole set of vanos rebuild kit just to get the two Orings. (No one cells the oring seperate.)
Opened the vanos cap, and found that previous oring was so flat and brittle, when I bent it, it snapped. The oring became like hard plastic in 7 years!
After replacing the oring there is no leak, and car runs perfect.

But I'm thinking... although oil is not leaking anymore, the other orings in the vanos pistons cannot be in good shape.
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post #6 of 6 Old 23rd May 2019, 02:01 AM Thread Starter
clee911
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I ended up having my mechanic remove my vanos and send it to the Dr for a full rebuild. The unit came back looking good as new! Everything looks buttoned up so far and there are no leaks. I’m curious how many vanos units get sent back for repair in order for drvanos to stay in business since this looks like it needs to be addressed on older cars.

Glad you were able to get back on the road with the new orings. I love this car, but may have to retire it from daily driving duties soon.
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