Quote:
Originally Posted by DriverDaily
Those rod bearings you mention weren't failing en mass until the vehicles were out of warranty. Now they're done as preventative maintenance.
One M2 after two years of production. Who knows what percentage of M2s will eventually succumb to the issue. Maybe you will need two M2Cs to keep one on the road in 10 years. The only thing we know now is BMW doesn't have a great track record compared to, say, Lexus.
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I get what you are saying, but here are my thoughts. The S55 has been in circulation since 2014 as a 2015 model year in the M3/M4. Not going to make a claim that this engine is ultra reliable, but it seems to be holding up better than others. There are examples that are well over 100K. Seems as though if the crank hub doesn’t fail, this is a pretty reliable motor. However, to your point, time will tell.