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2.0TDI BRD to 3.0TDI ASB Swap?

nafnaforiginal12 Apr 19, 2019

  1. nafnaforiginal12

    nafnaforiginal12 Registered User

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    Hi, just as above, wondered if anyone had swapped a 3.0TDI into a 2.0TDI B7?

    I have a B7 Avant 2.0TDI PD170 S-Line Special Edition Quattro

    Its got fairly high miles in terms of resale appeal at 155k and i always wished I'd gone for the 3.0TDI but they never came in special edition trim and wondered if i could just drop a 3.0TDI ASB in mine onto existing gearbox and drivetrain with associated wiring etc or is the suspension etc different on a 3.0TDI vehicle?

    Would probably upgrade to S4 brakes too if i went down that road.
     
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  3. RS4B5

    RS4B5 5 pots

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    keep the 2.0 mine had 240k on it lol
    there shouldnt be too much for the engine swap
    engine,gearbox,mounts,ecu diff?, i dont think you will need coding
     
  4. nafnaforiginal12

    nafnaforiginal12 Registered User

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    It'd probably be easier to get a donor car id imagine, mine is a manual box so wonder if the 3.0 would mate up to it.
     
  5. b6ben

    b6ben Registered User

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    I would say just tune the 2.0tdi tbh, no problem with getting power out of it. That's coming from a 3.0tdi owner. Easier if you ever needed to sell it too.

    Sent from my Pixel 3 XL using Tapatalk
     
  6. OliNix

    OliNix Registered User

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    Suspension is different, subframes are different. Wiring looms are completely different.

    Then you need to get the rest of the car to play with an alien engine, which is easier said than done!
     
  7. RS4B5

    RS4B5 5 pots

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    id imagine youd need the drive shafts and a manual box from a 3.0
     
  8. Pedrödelabongo

    Pedrödelabongo Guest

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    Maybe easier and cheaper to get the Special Edition trim into a 3.0 V6?
     
  9. Nollywood

    Nollywood B7 420-R Avant

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    There’s nothing complex about the conversion.

    The 3.0 TDI engine bolts straight up to the 2.0 TDI transmission.

    The 3.0 TDI engine bolts straight up to the 2.0 TDI engine mounts.

    The 2.0 TDI transmission is compatible with the 3.0 TDI.

    The 3.0 TDI wiring harness plugs directly to the connectors under the 2.0 TDI ECU.

    The 2.0 I4 TDI instrument cluster can be coded for 3.0 V6 TDI rpm pulses (tachometer).

    I have done this swap for a friend, it was completed in a weekend, there was nothing complicated about it. This was into a 2007 B7 2.0 TDI FWD. the donor car was a 2006 B7 3.0 TDI quattro, and everything was used in the 2007 car, including quattro.
     
    tr7 and BakPak like this.
  10. BakPak

    BakPak No Gear

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    Does this work the other way? If the engine failed in my 3.0tdi Quattro could a 2.0tdi engine be fitted?
     
  11. Nollywood

    Nollywood B7 420-R Avant

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    Yes.
     
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  13. Sid2go

    Sid2go Member

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    definitely need a guide/write up for this swap
     
    BakPak likes this.

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