Hey guys,

I'm having an issue with my N15 SSS where I seem to be getting an irritating whine/buzz noise above 4k rpm.

I have only noticed it since the car was recently stolen. At first I thought it was alternator noise coming through the stereo (which helps explain what it sounds like) however I completely disconnected the stereo from the harness to isolate it and determined it's not the source of the irritating noise.

The noise is directly relative to rpm and seems to worsen as rpms rise above that 4k-ish mark. It occurs under all conditions, stationary, full load and everywhere in between.

At this stage, I haven't been able to locate which area the noise is coming from as it's obviously very difficult to hear anything at those revs under the bonnet and I'm none the wiser poking my head around different areas of the interior.

I was hoping one of the resident gurus might have come across this before and could perhaps point me in the right direction. I'll try to get a video tomorrow and see if the noise is apparent in it.

Cheers,
Ben.