BMW Questions? Ask a BMW Repair Expert for Answers.
Is this the valve you are speaking of here https://www.dropbox.com/s/bcj9y7x1fgkdr9x/va-12-06.gif?dl=0?
I apologize.With my info being limited on this here I will have to see if anyone else can assist further.
I will open your question up for others here to see if someone else can assist further on this as there may be others here that may have more info on what to check or do with this issue.I hope you can get this resolved with ease.No need to reply to my last post here unless it is a last resort as it will keep your question locked to me and others will not be able to view it.If you feel you want to continue to work with me on this feel free to reply at any time but keep in mind in some cases it can be difficult to fully diagnose or help repair this without seeing your vehicle.