Hey zoners would a 1993 518i m40 engine that had a manual gearbox be a direct engine replacement into my 1990 318i auto without any problems, would the automatic gearbox i have in my 1990 318i bolt directly to the engine from the 1993 518i without any problems occuring even tho the 1993 518i m40 engine had a manual gearbox attached to it originally ?
thanks 2 everyone in advance
m40 engine replacement
Moderator: martauto
if its the same engine as some later m40's were actually m43's with a timing chain rather than a belt I'm not sure if this would fit or not.. but if it is defo an m40 with a belt it should be a simple engine swap. you'll need to remove the flywheel and remove the spigot bearing from the new engine and replace this with the flywheel and torque converter from your old engine
