*

Please note I strive to provide the best answers that I can.

If you need more information please use the reply link, please do not select a low rating - Please just let me know if you need clarification or have additional questions or concerns.

*

If you select either of the lower two ratings this is a NEGATIVE for me. I would be happy to help you until you are satisfied with my help, please use the reply link.

*

If you expected more in terms of good news, please do not select either of the lower two ratings as this PUNISHES ME for my honest answer. Thank you.

*

Hello and welcome to JustAnswer BMW,

Thank you for the further information. You could definitely inspect the CCV valves but they usually cause a check engine light and some running issues or even a whistle noise when failing. If the diaphragm is torn then this would be the first place to start.

However, I think the problem on your vehicle will be the valve seals. I have traced the main failure to the exhaust valve seals which leak directly into the exhaust manifold causing smoking. This can also lead to a clog in the secondary air ports in which the result is a very difficult to clean cylinder head secondary air ports. The only fix is to have the valve seals replaced which is the high cost due to the heads need to be removed.

I have a link for a video I have made for CCV replacement. It is on a 6 series but the engine and procedure is the same:

http://www.youtube.com/watch?v=FBy0tRn2xLw

Please use the reply link if you would like clarification or more information. Other wise please select a POSITIVE FEEDBACK RATING (FAR RIGHT) so I can be compensated for the help I provided. An EXCELLENT RATING is greatly appreciated!

Please do not select either of the left hand ratings. Simply reply back if you require anything additional and I will be happy help with any follow up questions.

Thank you and I wish you the best with your vehicle and repairs.