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Thread: Swap a TDI Engine into a Petrol A2?

  1. #1
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    Swap a TDI Engine into a Petrol A2?

    Can you put a TDI engine straight into a petrol A2.
    obviously the ecu im assuming wont recognise it and will also need changing wouldnt it?

  2. #2
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    Money no object i am sure it is possible you would also need to change the fuel pumping, front springs/shocks and possibly more besides. why not just buy an a2 TDi?!
    eh tu

    Never argue with an idiot......they will always beat you with experience!

  3. #3
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    Quote Originally Posted by LeeLee View Post
    Can you put a TDI engine straight into a petrol A2.
    obviously the ecu im assuming wont recognise it and will also need changing wouldnt it?
    Here's a list of some of the things I can think of -
    Wiring loom
    Instrument cluster
    Battery and possibly battery cables
    Suspension springs (fronts and possibly the rears)
    Exhaust system
    Fuel system from tank to engine
    Aftercooler and possibly the radiator /cooling system
    Engine ECU (as you thought)
    Webasto auxiliary heater if the diesel is a pre 2003 model
    Turbo wastegate and egr control valves plus vacuum pipework

    For a more detailed assessment use the Vagcat parts catalogue to compare petrol and diesel models - http://www.vagcat.com/epc/

    Cheers Spike

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    Quote Originally Posted by spike View Post
    Here's a list of some of the things I can think of -
    Wiring loom
    Instrument cluster
    Battery and possibly battery cables
    Suspension springs (fronts and possibly the rears)
    Exhaust system
    Fuel system from tank to engine
    Aftercooler and possibly the radiator /cooling system
    Engine ECU (as you thought)
    Webasto auxiliary heater if the diesel is a pre 2003 model
    Turbo wastegate and egr control valves plus vacuum pipework

    For a more detailed assessment use the Vagcat parts catalogue to compare petrol and diesel models - http://www.vagcat.com/epc/

    Cheers Spike
    ive got the whole car so im not too concerened about the parts spike
    but im just thinking is it worth the hassle transfering a low mileage diesel into and high mileage petrol.
    ive got 1 high mileage petrol and 1 low mileage petrol and 1 low mileage diesel but the diesel has had the front end smashed.
    do you think a grand for a engine transplant is too much?

  5. #5
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    That price all depends on what work they will do for it!!!

    If they swap over all the necessary parts, wiring, dash, fuel system etc then i would say its pretty good, as it then leaves you to sort the other parts, like suspension etc.

    Changing the main wiring loom(s) will be one hell of a job though.

    John

  6. #6
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    Transplanting the engine is probably the least of your problems. I think you would be better off simply selling the parts and buying another car. Unless you intend running the resulting car to the death you would probably not find it easy to sell. Strikes me as a project that unless you have the skill to do it all yourself is not one to be embarked upon.
    eh tu

    Never argue with an idiot......they will always beat you with experience!

  7. #7
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    If you're going to go to the bother of doing an engine transplant, I think it would be better to consider putting in one of the current generation Audi/ VW diesels, or perhaps that 1.4TFSI turbo/supercharger petrol engine rather than swapping in an old diesel? Seems like a heck of a lot of expense for very little end gain to me, and would give you massive issues with re-sell later on I'm sure.


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  8. #8
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    I doubt your budget is sufficient unless you really know what you are doing.....
    eh tu

    Never argue with an idiot......they will always beat you with experience!

  9. #9
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    Why not...

    ... Make a Audi A2 3.0TDi QUATTRO? That would move! hahahaa
    CHEERS!!

    Edward Larsen

    Audi A2 1.4 TDi -03
    http://www.a2oc.net/forum/album.php?albumid=118
    Porsche 911 Strosek MEGA -77
    http://www.a2oc.net/forum/album.php?albumid=120

  10. #10
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    ... because there's no space for the propshaft. I think that's a pretty good argument
    Even the 1.9TDI lump is heavy and would ruin handling.

    Bret
    Do not expect spoonfeeding, you will be disappointed.

    2002 Petrol. Modded inside. 'nuff said.
    German A2 Forum Administrator.

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