F56 Cooper S Whine Noise (video)
#1
F56 Cooper S Whine Noise (video)
I have had my mini for 5 months now and every once in awhile a whine noise comes from under the hood. Almost sounds like a bad bearing or weird supercharger whine. Its quite loud and pronounced, it raises and lowers with engine RPMs, however it doesn't appear to match RPMs, as once it raises with RPMs it stays there for a few seconds and comes back down to match the engine RPM.
I know this sounds weird, but engine noises are hard to explain. I have had a JB4 Stage 2 and Stage1 run on it and stock as well. All seem to have the same issue, but its random or at the very least not reproducible regularly. I am looking for thoughts or ideas on what it is before it goes to the dealer for this issue.
There is another issue that may be related and is performance related. The car feels like it is not producing all of the boost it should, and is around the same time this noise happens (sometimes). Under normal operation at 2500 RPMs you can floor the throttle til 3k RPMs then let off and hear the blowoff/bypass of the turbo air pressure, but when the issue persists, the sound cant be heard. Under heavy acceleration from 3k - 6k in any gear (more pronounced when in 3/4/5/6th gear). The acceleration is lackluster and never throws me in my seat. It also feels like it stutters or surges through the RPM range when doing a WOT run.
The video is here and towards 0:30 til the end you can CLEARLY hear the noise and that it sorta matches the engine RPMs. I then am able to put it into gear (manual trans) and the noise stops. Maybe coincidence or maybe its not turbo related.
I know this sounds weird, but engine noises are hard to explain. I have had a JB4 Stage 2 and Stage1 run on it and stock as well. All seem to have the same issue, but its random or at the very least not reproducible regularly. I am looking for thoughts or ideas on what it is before it goes to the dealer for this issue.
There is another issue that may be related and is performance related. The car feels like it is not producing all of the boost it should, and is around the same time this noise happens (sometimes). Under normal operation at 2500 RPMs you can floor the throttle til 3k RPMs then let off and hear the blowoff/bypass of the turbo air pressure, but when the issue persists, the sound cant be heard. Under heavy acceleration from 3k - 6k in any gear (more pronounced when in 3/4/5/6th gear). The acceleration is lackluster and never throws me in my seat. It also feels like it stutters or surges through the RPM range when doing a WOT run.
The video is here and towards 0:30 til the end you can CLEARLY hear the noise and that it sorta matches the engine RPMs. I then am able to put it into gear (manual trans) and the noise stops. Maybe coincidence or maybe its not turbo related.
Thoughts?