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post #11 of 15 Unread 9th April 2019, 07:50 PM
Pav
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You can check your cat adaptations on ISTA if they bigger than 1.0 then you can run cat diagnostic procedure, I think there is lambda check procedure as well.

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post #12 of 15 Unread 10th April 2019, 09:22 AM Thread Starter
Andrej89
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Originally Posted by Pav View Post
You can check your cat adaptations on ISTA if they bigger than 1.0 then you can run cat diagnostic procedure, I think there is lambda check procedure as well.

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Thanks!

Have actually done recently the cat diagnostics.

Bank 1 cat - 1,0
Bank 2 cat - 0,6
Overall - 0,8

Do not like Bank 1.
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post #13 of 15 Unread 10th April 2019, 04:07 PM
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Can you discribe in more details what kind of vibrations you got, I got feeling that they are similar to my case and they are vanos related.
Here is thread from 2006:


https://www.m5board.com/vbulletin/e6...s/67675?page=1

Here is my thread, all engine mount replaced, vibration still there

https://www.google.com/amp/s/www.m5b...m.html%3famp=1

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post #14 of 15 Unread 10th April 2019, 07:57 PM
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I believe this is what many S85 owners call oscillating idle. I started a thread about it few months ago - check it out, some good theories there.

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post #15 of 15 Unread 10th April 2019, 08:13 PM
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I am new to E60 M5's but based on all of my years of BMW experience I would say it is a small vacuum leak. So small that it only happens when the engine is hot. If you are not getting codes just wait. You could do a smoke test and see if you can find it on a hot engine. Don't throw parts, the codes will tell you if you need O2 sensors.
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