I think you have to stick to the AEB engine. From 2000 they're equipped with Aww engine which is a bit different
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I think I lost a crank bearing or something in the low end of the motor in my A-4, So now would be the time to upgrade, does anyone know of a compatable engine that I could put in place of the stock one, maybe a bigger one or one of better quality? Thank you for your help.