Originally Posted by Maxi
My friend try to fit an engine of 1.8 z3 in his 318is, it's same. and he said that the z3 gearbox & engine same like e36.
That's because the Z3's 1.8 is the same engine as the 318is. I believe they're both the M43 (depending on the years of the cars, I could be wrong on that number). And the Z3 is basically an E36.