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Old 09-17-2020, 12:43 PM   #1
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Join Date: Sep 2015
Location: St. Petersburg, Florida
Posts: 345
LN IMS Bearing Service Life

The IMS bearing in my '98 Boxster was preemptively replaced by the original owner in 2011 when the car had 27K miles on it. The car now has around 37K miles on it, and in looking at the LN Engineering recommended service intervals, they indicate 6 years or 75,000 miles.

I'm clearly beyond the recommended 6 year service interval, but well below the mileage interval. I'm having trouble understanding why there's a time interval. Do the ceramic balls deteriorate with age? Is there any reason that the bearing should be replaced again?
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