Which motor and since half the people on this forum drive right hand drive best to say right/starboard side vs passenger side.

The chain tensioner seal when it fails will leak quite a lot of oil. On the 3.0 if the oil filter o-ring isn't replaced every change you can expect quarts of oil to be trailing you around.

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