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  1. #1
    Established Member Two Rings
    Join Date
    Mar 30 2018
    AZ Member #
    416330
    Location
    Kentucky

    Intake Manifold - P2015

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    Swapped my b8 for b8.5 engine earlier this year, 5 months later got my first CEL. So I didn't have to upgrade my ECU, I opted to keep the plastic intake manifold. When researching on the swap from b8 to b8.5 I remembered reading about all the intake manifold failures so I successfully predicted this to be the first thing to go after my swap.

    Anyways, any thoughts on the code? Should I just go for a new intake manifold or attempt a repair? Since I last cleared the code, its been about 6 weeks since a light has been on, but I recently got it for a second time the other day.

    Can I really get one for $150? https://www.shopdap.com/vw-2-0-t-int...j133201bd.html
    ECS $550: https://www.ecstuning.com/b-genuine-...d/06h133201at/

  2. #2
    Active Member Two Rings
    Join Date
    Jul 16 2018
    AZ Member #
    422473
    Location
    Atlanta

    Some say you can use the transverse manifold (the BD part number, which is outdated; it's rev BH these days), but I prefer to use the proper longitudinal manifold (the AN part number).
    https://www.shopdap.com/catalog/prod...ategory/29566/

    Search here; there was some long thread on this topic a month or two back.

    I assume the AT part number is a replacement for AN (which parts.audiusa.com lists as no longer available), but there's no excuse for that price.
    No idea what ECS is trying to say about "3 ports" and need for some "fresh air hose".

    edit: shopdap at least provides a little more insight on that fresh air hose:
    https://www.shopdap.com/intake-manif...-2-0t-tsi.html
    The part number for that install kit is "BH", so you might need that hose also for BH, vs the prior BD.
    2009 A4 Avant 2.0T quattro Prestige, 177k miles

  3. #3
    Established Member Two Rings
    Join Date
    Mar 30 2018
    AZ Member #
    416330
    Location
    Kentucky

    Thanks for your input Smac. I think I found that thread you were talking about: https://www.audizine.com/forum/showt...ntake+manifold

    This guy replaced the entire manifold and still got the code: https://www.audizine.com/forum/showt...561-P2015-Help!

    I guess my options are as follows:
    1. Attempt a repair, though it may be difficult to identify the exact problem. Looks like it could be a couple of different things.
    2. Replace the manifold with either the BH or AN. In that first post I linked, the guy ended up using the BH. Do you know if I would need that fresh air hose for the BH; looks like I definitely would for the AN.
    3. Replace with "metal" manifold (I've got two from my swap this summer sitting in my garage. Looks like I have two of the "fresh air hoses" as well.)

    I'm leaning towards option 2. Unsure of BH or AN though.

  4. #4
    Active Member Two Rings
    Join Date
    Jul 16 2018
    AZ Member #
    422473
    Location
    Atlanta

    My understanding is that when swapping a B8.5 CAEx motor (from a manual tranny donor), you'll already have the plastic manifold and relevant ECU on the donor. If you swapped in a B8.5 CPMx motor (from an auto tranny donor), you'll need to replace the metal intake manifold and ECU with the ones from your original B8.0 CAEB motor.

    I replaced my manifold years ago so I just used the AN, which was only $180 or something like that back then. Mine had popped P2015 from time to time, in the middle of very long trips usually, but there was no functional impact. Clear the MIL and move on. Eventually it broke and the engine idled very poorly. It was broken in the manner that the plug on the backside that attaches to the arm had popped out; the plastic that held it in was broken. I made a bracket that I attached to the back engine hoist bracket and it ran fine until I finally bought a replacement.

    A call to your dealership service department should be able to clarify the AN/BD vs AT/BH in regards to this fresh air hose. AN certainly doesn't need the hose. AT is the revision that introduced that requirement (and I suspect the matching transverse engine revision is BH).
    2009 A4 Avant 2.0T quattro Prestige, 177k miles



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