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Z3 engine compatibility

Discussion in 'Z3 Roadster & Coupé' started by Tyler the aviator, Mar 26, 2014.

  1. Tyler the aviator

    Mar 26, 2014
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    Hey guys, I'm pretty new to these forums and had a question about my z3.
    Unfortunately, I experienced a "money shift" otherwise known as mechanical over-revving.
    I am going to try and salvage the car with the current engine, but if that doesn't work I'm going to need to swap.
    My question is: "What engines can I swap into my car without replacing the transmission or other important components?"
    will I have to stick with the same 2.5i engine? or can i use the 2.8, 3.0, 3.2, etc
    I don't necessarily need more power, I just see these engine pop up a lot more.
  2. GazHyde

    GazHyde The Gaz Monkey
    Staff Member Administrator Global Moderator British Zeds

    Dec 2, 2011
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    Newbury, Berkshire
    Model of Z:
    BMW Z4 3.0Si Sport
    Welcome Tyler,

    A straight like for like swap is always going to be the easiest & cheapest option. I'm sure someone more proficient with a spanner will give you better guidance than I ;)

    • Like Like x 1
  3. zedonist

    zedonist Guest

    Other than the //M engine and the 1.9, all will fit mechanically, but you will need to confirm gear box and final drive ratio. Electronically you will need the ECU as a minimum, plus extra or less sensors / modules specific to the engine, trawling realoem may help confirm the differences.
    • Like Like x 1