Some have gone a million though. I think eventually most bearings will have hit enough hard bumps you'll have failure by 200k. Depending where you live the MTBF might be under 100k miles.

That said my 01 never needed a new rear bearing through 205k. I don't remember if I ever changed left front but did right front twice about 2 years apart.

There's a TSB from bmw basically indicated that impact will damage the bearing. Specifically that if a wheel it's impacted in an accident you must change the bearing presumptive damage.

Wife's e53 i think in 180,000 3/4 of hers were changed.

My point is you don't have to replace any that aren't showing signs of damage. When my right front went out after less than two years many would have assumed it must be the other side rather than diagnose the same side failed quickly. (surely from pot hole during a turn).


–awr–

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2011 E70 • N55 (me)
2012 E70 • N63 (wife)