2nd Gen R56 Cooper S Most liked posts in thread: 2010 AC Noise

Yeah well, now your MINI weighs 10 pounds more than it needed.....

 

If you are talking about a change in pitch, almost a whine that can be heard with the AC on, especially noticeable when accelerating, then I know what you are talking about. But I also had a 3 series wagon loaner car, and it did the exact same thing, so I figured that all current BMW's and MINIs exhibit this sound..though my R53 didn't.

Richard

 

Haven't noticed any AC sounds on mine. Would you post a sound clip of it?

 

Easiest way to hear this is to let the engine idle in neutral, and listen (windows closed). Now turn on the AC, and compare. Rev the motor a bit, and you will hear a change in sound. That's what I'm talking about..not sure if the OP is talking about the same thing.

 

Not necessarily.......just because you hear a noise that someone else doesn't does not mean your car is defective. Every MINI is different than every other, due to option difference, tolerances, and so on.....

What I heard in your clip was normal noise to me - you might find it objectionable, others might not even hear it. It doesn't mean they have to fix it, cause there might not be anything wrong to fix.

Your warranty applies to defects in materials or workmanship, there may not be a defect to fix in your car's case.

My A/C does make a similar whirring noise when on, I'm pretty sure it's compressor noise since it follows the engine RPM - it doesn't bother me, and my A/C system works exactly as it's intended.....

OTOH, yours might be a compressor bearing that's noisier than most - I'm only guessing here - and maybe somewhere down the road it will fail and they'll repace the compressor. The new one might make the same or even more noise.

If you want Lexus quiet, you're gonna hafta buy a Lexus.....

 

A owner on the other MINI site has now posted that there is a fix for this problem. His car is in the shop right now and MINI is installing some kind of weight to fix/reduce the vibration.

 

The person posted again and said that the fix worked, here is what MINI put on his receipt.

Here' what they wrote up on my service paperwork:
INSTALLED DAMPER PER BULLETIN 64 01 10

 

How did the application of the DAMPER BULLETIN 64 01 10 go? Still working as desired?

Thank you

 

Just saw this. Mine makes an AWEFUL racket when the compressor first kicks on. After that it's fine. I just thought it was they way they made them. I've never had another A/C compressor make that sort of noise on being lit off...

 

I just got this applied to my mini and am so happy to have gotten rid of that irritating noise. Appreciate the post to help others become aware that there was a known remedy. Sure did make the process easier to be able to go in saying that I think I need this bulletin applied.

Sorry to hear about your other problem with your mini.

 

I have the same issue on my '10 MCS, but I never really thought much about it.
It's good to know there's a solution for it though

 

That is really odd 07-09 MINIs did not have this noise. Wonder if this is a band-aide fix to get a batch of bad compressors out to the end of warranty.

 

64 50 9 231 714 Vibration Damper..... $94.32
Apparently it's a weight that gets clamped to one of the refrigerant lines.
Anyone snap a picture? It's listed in RealOEM but no picture. It's a common fix used on E89 through E92 3 series BMW's where it was originally developed as a fix for their AC noise issues. So we're getting big brother's hand me down fix. Hey as long as it works. Seems kind of strange that a part that's no more that a bolt-on weight would go for $100.00???

 

Maybe it's gold plated...

 

Well it cost me $0.00 so I don't care what the MSRP is.

 

Oddly enough, my '07 sounded identical to that when it was new. The AC noise went away when I fixed my dash rattles. In my case the heater core fitment was a bit loose - I pulled it out, jammed foam around it and stuffed it back in.
Never had a problem after that.