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  1. #1
    Active Member One Ring
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    Jul 04 2022
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    Morocco

    Audi A4 B8 SWAP sq5 engine

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    Anyone knows what would i need to swap in a SQ5 engine bitdi (beside the engine, trans and ECU) i mean is it a plug and play sort of thing ? the A4 B8 is already a quattro and a V6 3l tdi sorry im new to this project

  2. #2
    Veteran Member Four Rings
    Join Date
    Jul 16 2018
    AZ Member #
    422473
    Location
    Atlanta

    Different engine swaps are never "plug and play".
    What year is your A4? B8.0 or B8.5?
    What is the actual engine code on the 3.0 TDI you have now? What is the actual engine code on the 3.0 "biTDI" you are looking to install?
    The SQ5 only used the type 0BK (ZF 8-speed) Tiptronic. Which transmission is in your A4 now?
    2009 A4 Avant 2.0T quattro Prestige, 275k miles

  3. #3
    Active Member One Ring
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    Jul 04 2022
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    b8 I guess since it's 2011-2012, engine code must be CDUC or CKVC idk tbh and the engine on the sq5 is a CGQB

  4. #4
    Senior Member Three Rings
    Join Date
    Apr 20 2020
    AZ Member #
    545782
    My Garage
    '04 allroad 2.7T, '07 A4 2.0T qt, '10 A4 2.0T, '10 TT 2.0T qt, '02 Ford Ranger 3.0L.
    Location
    Chino, CA

    You can find the engine code in multiple places if you open the hood.

    CGQB 3.0L turbo diesel is never a factory option for B8 sedan. By comparison, if you swap in a 3.0T supercharger, you have a S4, which is a factory option for B8. If you have not make the purchase, the latter obviously better choice.

    Turbo diesel, seriously?

  5. #5
    Veteran Member Four Rings
    Join Date
    Jul 16 2018
    AZ Member #
    422473
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    Atlanta

    As mentioned, the S4 and S5 only used FSI engines, even in RoW markets. The SQ5 used the same supercharged 3.0T. But it also had the 3.0 biturbo TDI in some markets. So will a type 8K (B8 A4) cozy up to a 3.0 biTDI ECM? No idea. Be up to whoever you have doing the immobilizer adaptation to be able to massage it through. The rest of the chassis electronics are pretty much the same between a type 8K and a type 8R (B8 Q5).

    The location of the engine code on a TDI seems to be a lot more tedious than the clear label on the timing cover of T-FSI engines, for whatever reason.
    But you need to confirm details when asking technical questions. CDUC and CKVC appear to be B8.5 3.0 TDIs. A4 B8.0 3.0 TDI seem to be the set of {CAPA (240PS), CCLA (239PS), CCWA (239PS), CCWB (211PS)}.
    Find your PR codes sticker on that A4 and post an image of that. Too many details to bother asking one by one.

    One concern if the A4 in question is a B8.0, it'll have a hydraulic steering rack. B8.5 does not have a hydraulic steering rack, and therefore has no accommodation for mounting a power steering pump. The B8.0 appear to use EA896evo engines, while B8.5 used EA897 engines. Who know if the power steering pump bracket (059 145 167 AE) even has a place to go on a EA897 engine. Not to mention determining a useful serpentine belt length if other pulley changes were made between the engine generations.

    You're probably going to have to bring the matching rear diff and drive shaft too.
    2009 A4 Avant 2.0T quattro Prestige, 275k miles

  6. #6
    Active Member One Ring
    Join Date
    Jul 04 2022
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    Yep, medium perf with good fuel eco works for me

    - - - Updated - - -

    Hmm so i should just forget about it and sell it and get me an a6 c7 4g with a 3l tdi and do the swap probably

  7. #7
    Veteran Member Four Rings
    Join Date
    Jul 16 2018
    AZ Member #
    422473
    Location
    Atlanta

    A type 4G would be a more natural home for a CGQB than any B8.0.
    2009 A4 Avant 2.0T quattro Prestige, 275k miles

  8. #8
    Active Member One Ring
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    Jul 04 2022
    AZ Member #
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    Location
    Morocco

    So it would be a simple swap engine+box ? Or would there be any other electrics necessary ? Cause the cables are all the same ..

  9. #9
    Veteran Member Four Rings
    Join Date
    Jul 16 2018
    AZ Member #
    422473
    Location
    Atlanta

    No idea myself. You'd need to find someone who's done it to know what all it'll actually take. I'm sure one can put whatever into whatever with enough effort. If they can put a Telsa motor into an A5/S5/RS5 (can't remember which it was), ....
    2009 A4 Avant 2.0T quattro Prestige, 275k miles

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