One of the bigger changes with the inclusion of the B58 is the internals of the engine
http://youwheel.com/home/2016/03/27/...linder-engine/
Lots of really cool features to this engine, liquid to air intercooler, closed block design yada yada yada.....and its fun to drive
This is admittedly the first vehicle I've had that doesnt have sleeved cylinders which got me thinking about what happens down the road in the event of needing to rebuild the engine.
With a sleeved block engine its a pretty straightforward and not cost prohibitive process......
The B58 has a coating on the cylinder walls......the cylinder lining process is an electric wire arc/lds spray coating that is less than .5mm thick
Doesnt appear that boring it out is an option nor is re-application of the coating seemingly all that practical.....at least not yet.....seems like the equipment required is going to preclude your local engine rebuilder from being able to get set up for this
So what are the options long term?
New long block?
Is BMW going to be offering replacement short blocks with a core charge?