I would like to install a N52K petrol engine (manual gearbox)

Hello

Ok this is a pretty ambitous project

the engine should bolt up to the transmisson OK but you will need the N52 engine ECU and this is where it will become very complicated as the later engine used a different ECU and compleltly different calibration and coding plus the engine ecu will need to be in communication with the transmisson and the manual versions won't be set up for this
so you'd need an ECU for the N52 engine from an auto car

exhaust manifolds are different but not so far apart you couldn't modify your current exhaust to match up and engine mounts are slightly different but again this is easliy fixed

teh real show stopper will be getting the two ECU's talking and thinking that everything is all OK as the engine ECU runs the show and the entire car

so it needs to be happy that everything its expecting to see (body control module, immobiliser, ABS module etc etc) is all in place

and this simply won't be the case


if you really want to make this combination work I suggest transplanting all the engine sensors off the old E60 engine onto the N52 and then have the car re-mapped all on the original E60 ECU's

Hello

I did already mention this

the gearbox should bolt up so it should physically fit the engine but it won't talk to the N52 engine ECU

you will either need to replace the engine ECU and then get it re-coded to work with the older car and transmisson ECU

OR

keep the standard engine and transmisson ECUs and transfer all the engine sensors from the M60 engine to the N52 engine and then re-map it


I would strongly reccommend the 2nd option