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Recoding of the sound?
How old are the chain tensioners? It's not as bad as the m 62 but n 62 also needs periodic tensioner replacement. I've seen where the chain cut through the timing chain cover like a chain saw through a tree.
I've been surprised how much the injectors can sound like valve follower tap etc. N 52 horrible for this issue.
If you have "lifter" slap it should clear up after 30 minutes drive at ≥ 2500 rpm.
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2011 E70 • N55 (me)
2012 E70 • N63 (wife)
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