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      05-12-2018, 05:46 PM   #205
maddmatth
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Drives: F82 M4, E92 335i
Join Date: Jun 2015
Location: New Zealand

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Quote:
Originally Posted by xxMike61 View Post
So in the past week or so I've noticed that my engine sounds louder than usual. Not the exhaust or anything related to that but I hear things spinning more I guess. Like the higher RPMs I go the louder it is (duh) but I haven't heard anything like this before. There's almost a rhythmic rock/ knock to it. I've taken logs and looked under the hood and all seems well. I am running Mobil 1 0w40 and I am about 5k into this oil run. Since I am very paranoid I will be changing the oil this week and sending in a sample wish me luck.
Take it to a BMW specialist, or dealer if you have to, and have them listen to it. They should know right away if something is wrong.
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