09-08-2014, 11:29 PM | #1 |
Colonel
344
Rep 2,928
Posts
Drives: 328i, 335i, M3, 535i, X5, 36M
Join Date: Oct 2010
Location: OC
iTrader: (3)
Garage List 2014 Ford Raptor [0.00]
2012 328i E92 [10.00] 2013 X5 [0.00] 2013 335i F30 [8.00] 1990 Toyota Previa [0.00] 1997 E36 M3 [10.00] 2011 E92 M3 [0.00] 2011 535i [0.00] |
Whining high pitched jet engine sound while braking...
So I test drove another m4 and while braking you get this odd whining noise that can be heard through the cabin when windows are rolled up.
Is this normal? Sounds like a jet engine winding down. I though it was the engine but as I kept stop and go braking even at parking lot speeds I could hear it... Anyone experience this? Normal brakes not ceramic |
09-09-2014, 12:09 AM | #2 |
Second Lieutenant
64
Rep 256
Posts |
If the noise you've described is the same as the following video (go to 6:15):
Then it's fine. Eventually it goes away.
__________________
BMW M4: Mineral White. DCT. Exec Package. Optional 19". Full leather.
7/7/14: On the waiting list | 9/8/14: Order submitted | 10/2/14: Order approved. Production number received | 11/7/14: In Production | 11/15/14: End of production | 11/21/14: En route to the US | 12/7/14: Finishing touches | 12/13/14: At the dealer | 12/15/14: Car in garage |
Appreciate
0
|
09-09-2014, 01:51 PM | #4 |
Private
9
Rep 80
Posts |
Ive noticed it to sound like a loud fan.
Mostly present when in sport plus throttle setting. I think its the extra cooling on the radiators but goes away quite quickly after stopping at a light. First i thought it was the turbos spinning down ( ball bearing turbos usually make this sound when spinning down). If anyone knows what is causing this sound, id like to know..
__________________
2009 E92 M3 DCT - Sold
2015 F80 M3 AW/ SO 6MT- Sold 2015 F82 M4 SSII DCT - Sold 2006 Carerra 4S 6MT 2020 M240i Xdrive |
Appreciate
0
|
09-09-2014, 05:13 PM | #7 |
Private First Class
10
Rep 106
Posts |
I noticed the same sound, and at 1100 miles it seems like its a lot more subtle now (or did I just get used to it?)
Curious to know what it is/was too. Is it really the brakes? |
Appreciate
0
|
09-09-2014, 05:46 PM | #8 |
Colonel
749
Rep 2,108
Posts |
I just took delivery of my car and noticed the same sound right after leaving the dealership. Good to know that it eventually goes away.
__________________
2015 BMW F80 M3: Tractive EDC Suspension / Dinan Anti-Roll Bars / GC Camber Plates / KMP Dual Diff Mount / Girodisc Rotors / GT4 Brake Cooling Kit / PTF Flash Tune / Eisenmann Downpipes / CSF Heat Exchanger / BMS Charge Pipes
2007 BMW E92 335i (SOLD): BMS JB4 / Quaife LSD / Riss Racing DPs / Helix Intercooler / BMS Intake / STETT Charge Pipe / Forge DVs |
Appreciate
0
|
01-04-2015, 03:16 PM | #10 | |
Major
331
Rep 1,268
Posts |
Quote:
__________________
Past: BMW (22 G20 M340i, 15 F80 ///M3, 12 E92 335i, 08 E90 335i, 02 E46 325i)
Mercedes-Benz, Porsche, VW, Lexus Present: 24 992 C2 |
|
Appreciate
0
|
Post Reply |
Bookmarks |
|
|