I noticed this slight noise behind the dash while driving home today. It's very faint and generally only audible while stopped. I turned the AC and music off completely and the noise persisted. It sort of sounds like an old mechanical hard drive seeking. I know that's not it, but it is the closest similar sound that comes to mind. I wonder if a fan is failing or if a cable is getting into the blades of a fan. My MCU was recently replaced a week and a half ago, so I'm wondering if that's it.
Is there a fan on anything ehind the dash or is everything passively cooled?
Is there a fan on anything ehind the dash or is everything passively cooled?