This is what happens when you forget to replace your E9X M3 S65 V8 rod bearings - Blown S65 V8 pictures
Rod bearing wear issues in the 4.0 liter S65 V8 in the E9X M3 are well known. Rod bearings also wear prematurely on the S85 V10 on which the S65 V8 is based but do to the superior oiling system of the V10 the problem is not exacerbated as it is on the V8.
Things vary based on use as well. A car that is tracked or supercharged will see more wear than a stock car used for commuting. The bottom line however is that owners should replace their rod bearings before it is too late so that they can avoid what is pictured below.
shared pictures of a blown S65 V8 from an E92 M3:
Originally Posted by German Auto Werks
Unfortunately, BMW has a history of mistakes with M3 engines dating back to the E46 M3 S54 and all the way up to the current F80 M3 S55
. Someone should hold BMW accountable for knowingly selling motors with defects.