Loud whistling at high speed
07-28-2011, 01:02 PM
#11
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My Ride: 2007 530i. Purchased 6/28/07. Titanium Silver Metallic, Black Dakota Leather, Dark Poplar Trim, Steptronic, Premium Package, Cold Weather Package, Bluetooth, Adaptive Control Xenons. 10/30/07 Added OEM 124s with 245/40/18 & 275/35/18 Michelin Pilot Sport A/S tires. Installed red Cal Covers� from BavAuto. 11/21/07 Added OEM all-weather floor mats (for winter, carpet in summer) and coat rack. 6/26/08 installed M5-style rear spoiler. 6/30/08 put on red reflectors. 8/22/08 Euro turn signal stickers applied. 3/20/09 Installed Shadowline Trim. 3/27/09 Added Matte Black Kidney Grilles from Trinity. 4/03/09 Installed Bimmian Shadow Matte Black 530i Badges. 4/04/09 Installed LED license plate lights from Trinity. 5/01/09 Installed Brabus Interior LED Kit and White Angel Eyes. 5/02/09 Put in Brabus 6K Fogs. 5/14/09 Removed charcoal filter. 5/15/09 Installed light smoke LED side marker lamps from Trinity. 5/21/09 Sprint Booster. 6/12/09 Painted exhaust tips flat black. 6/13/09 Pulled red Cal Covers and painted calipers low gloss black. 6/27/09 RPI Ram Air Scoop from Trinity. 8/15/09 Installed Brabus's silver invisibulbs front and rear. 9/24/09 Installed R-Dash license plate LEDs from Brabaus (John).
I occasionally get a whistle from the front of the car as well. I started noticing it after I installed my RPi scoop. I'm not sure that's the cause, just saying that's about when I noticed it. It looks like some of you guys have RPi scoops as well. 
07-28-2011, 01:17 PM
#12
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I am not saying it's the scoop causing noise but...
07-28-2011, 01:25 PM
#13
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My Ride: 2009 M3
I'm not running the scoop but have the same issue. I'm going to get some painters tape and put around the windshield this evening an make a few runs. Hopefully I can track down the source.
07-28-2011, 02:19 PM
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My Ride: 2008 535i LCI with sports/premium package, Sports trans with paddle shifters, CF emblems, JB4 Software, Dinan Exhaust, Navigation, M5Tech body kit, Carbon wrap interrior trim and CIC Controller.
No scoop on my car either. The noise just started around four weeks ago...
07-28-2011, 05:14 PM
#15
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I'm beginning to think it's not the windshield. I'm positive that my windshield hasn't been replaced in the past, but it has sat outside on plenty of hot Texas day's. I've read that one way to diagnose if it's the windshield is to apply force to the windshield when the sound is present to see if it goes away/ alters pitch. On my way home, I heard the whistle and pushed on every part of the windshield, there not a change in the whistle at all. I mean, I put some force into the windshield and the whistle just laughed back at me... so I think it's form something underneath the car. Again, I'm hearing a very course/rough whistle from the center of the dashboard, near the center speaker (I have L7). Next step is to put some tape around the windshield and see if it still appears.
07-28-2011, 06:10 PM
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My Ride: 2008 550i M-Sport
No noise but new windshield in 2010. I did have to have one of the molding replaced after they replaced the windshield. The sunroof has some wind noise from 80-? but I can close the shade and the noise goes away.
07-29-2011, 03:19 AM
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My Ride: 2007 530xi: Sport, NAV, PDC, HUD, Cold Wthr, CA, Logic 7, HD Radio, SAT, Custom NCS coded options 2008 535xi: Sport, Night Vision, NAV, PDC, HUD, Cold Wthr, CA, Logic 7, SAT, Custom NCS coded options, Rear Seat Heat Retrofit, Passport 9500ci
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Noise in the center dash is somtimes attributed to the strut bar. Maybe getting a highspeed vibration or harmonic?
Try attaching a spring clamp to the bar to see if it affects the noise.
Try attaching a spring clamp to the bar to see if it affects the noise.
07-29-2011, 04:16 AM
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My Ride: 2008 535i LCI with sports/premium package, Sports trans with paddle shifters, CF emblems, JB4 Software, Dinan Exhaust, Navigation, M5Tech body kit, Carbon wrap interrior trim and CIC Controller.
Another good idea that I will look into this weekend. I haven't actually looked under the IP yet, but is the IP strut accessible or visible? I'm thinking I will need to remove a few panels...
07-29-2011, 05:44 AM
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My Ride: Black 2006 BMW 530i with sport and prem package, staggered 124 wheels, 50% tint, AC Schnitzer aluminum pedals, black interior w/ alum trim set, M style body kit and sound upgrade: Alpine PDX-5, PXE-H660, sub, MBQuart speakers.