The N62 has a solid chain guide design that doesn't usually shatter like M62 so I'm very curious to see what happened to allow this to happen. I'm guessing chain guide broke to give enough slack and allow the chain maybe to take a shorter path around a corner that used the solinoid as a make shift chain guide.

It's really a miracle something far worse didn't happen.

Query: why was the tensioner replaced 30k km ago? And how many km on the odometer now? My consern is that something done during that repair caused the lack of oil/tensioner pressure that usually is the start of this type of failure.

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