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      11-04-2019, 08:37 PM   #12
BurrNinja
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Drives: 2017 540i Bluestone Metallic
Join Date: Jul 2016
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Quote:
Originally Posted by Andrreee View Post
Quote:
Originally Posted by BurrNinja View Post
Open oil cap you will hear it louder, it's completely normal to hear that.
What does it makes this sound?
Tbh havent looked into it. From what I understand this noise is possibly from the vacuum pump.
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