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  #11  
Old 10-06-2016, 12:42 PM
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Thank you for your insight jrd1971vw.
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  #12  
Old 07-02-2017, 02:08 AM
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Solved (for me anyway)

It wound up being a bad low pressure EGR vacuum controller. Part # 11747805391

-jrd1971vw
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  #13  
Old 07-02-2017, 09:33 AM
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Thank you for the update. Did you replace it yourself or have it done?
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  #14  
Old 07-02-2017, 10:27 AM
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No. A friend of mine (who is a BMW tech) did it for me. It was a couple months ago and there's been no new codes so I'm confident that was it. (So is he) It is under the intake.
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  #15  
Old 07-02-2017, 09:49 PM
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Agreed - this is the primary cause of this fault if the vacuum system is otherwise good.
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  #16  
Old 08-12-2017, 06:12 PM
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Where is this part located? How are the lines routed? I'm fighting the exact same thing now. I replaced the pressure converter that the egr vacuum line goes to. The diagrams for this system seem incorrect.
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  #17  
Old 08-12-2017, 08:07 PM
ard ard is offline
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Keep in mind that the vacuum diagram may be a 'schematic', and not a perfect depiction of the actual hose routings. I don't know for sure, just a comment....
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  #18  
Old 08-13-2017, 05:29 PM
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I was wondering the same thing. Where is the pressure converter?
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  #19  
Old 08-13-2017, 05:43 PM
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Fixed! Someone had switched the hoses. The pressure converter is on the drivers side under the lip of the intake manifold. Tricky to see with everything attached.
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  #20  
Old 06-08-2018, 03:54 PM
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Wow thanks to y'all for this thread. Was exactly my issue from those codes. Had to go through taking off the intake manifold to see the part & replace it; what a terrible place to put the part.
Car is a champ again.
Saved $500 labor.
I ended up not bolting the part to the engine, and left it more outward so as to have easier access next time in case it breaks again; no need to take off the intake manifold again.
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