Quote:
Originally Posted by Longwong
but just replacing the bearings if they wear out seems like a ridiculous fix to have to keep doing and again does not alleviate the problem. BMW really dropped the ball here. You never see any other high revving engines have these problems.
And replacing the bearings is no easy job. If you had to pay a mechanic its a 5k job. Not pocket change
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To the contrary, s14s, s50b30s, s52b32s, and s54s all wear out bearings. Mine needed replacement (and got it) at 110,000 miles. Some need it much sooner. Some go over 200,000 without needed them.
Not that bad of a job, certainly not $5000! Support engine from above, drop front subframe, drop oil pan, replace bearings, reassemble. Or, step by step e46 guide:
http://www.m3forum.net/m3forum/showthread.php?t=414678
If everyone was wearing them out at, say, 50,000... That would seem like a problem to me. But, there's lots of high mileage cars out there ready. I'd say watch the oil analysis and replace when necessary. Cost of having a high revving engine.