My M5 F10 Makes a worrying noise, PLEASE HELP!

FANBMWM · 07-07-2020, 06:07 PM

Hi Everyone,
My 2016 M5 F10 makes a chirping noise, please watch my video and help me find the source of this annoying noise
Absolutely no modifications

Thank you in advance for any input

M5Yams · 07-08-2020, 11:24 AM

Quote:

Originally Posted by FANBMWM

Hi Everyone,
My 2016 M5 F10 makes a chirping noise, please watch my video and help me find the source of this annoying noise
Absolutely no modifications

Thank you in advance for any input

Hey man I tried listening to your video but I'm at work and had no headphones available. But I had a chirp sound happening as well, it is the exhaust flaps on the tailpipes, you can pipe strap them open, which will give you a touch me aggressive sound, or you can use a graphite grease on them.
Once I get home I'll try giving it another listen.

M5Yams · 07-08-2020, 06:16 PM

Alright so I gave it another listen, its definitely not those rear valves. Those valves give off a very short chirp. So after listening on headphones you can here a sustained sound at low rpm, kinda like a squeak. First guess is the serpentine belt is starting to go bad, which generally starts with a squeak. Easy way to check that is to get a can of lightweight lubricant (WD40) and spray on one of the pulleys that the belt rides along, when you give it a quick shot if it is the belt squeaking it will change pitch or stop all together. Note that this isn't the fix but will tell you if that's your issue.
Next guess would be that you possible have an intake leak, high vacuum caused by a turbo leaking through a crack could squeal, check your hose clamps and the 7 torx head screws that go around your intake air boxes, when I did my charcoal filter delete I noticed one of mine was almost entirely out.
Let me know what you find. Good luck!

07-07-2020, 06:07 PM	#1
FANBMWM If in doubt flat out - Colin Mcrae 127 Rep 261 Posts Drives: BMW M5 F10 LCI SMB M2 LCI LBB Join Date: Oct 2010 Location: Warsaw iTrader: (0) Garage List 2010 BMW 760li [10.00]	My M5 F10 Makes a worrying noise, PLEASE HELP! Hi Everyone, My 2016 M5 F10 makes a chirping noise, please watch my video and help me find the source of this annoying noise Absolutely no modifications Thank you in advance for any input
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07-08-2020, 06:16 PM	#3
M5Yams Private First Class 91 Rep 127 Posts Drives: 2015 bmw m5 competition Join Date: Apr 2020 Location: Fort wayne, Indiana iTrader: (0)	Alright so I gave it another listen, its definitely not those rear valves. Those valves give off a very short chirp. So after listening on headphones you can here a sustained sound at low rpm, kinda like a squeak. First guess is the serpentine belt is starting to go bad, which generally starts with a squeak. Easy way to check that is to get a can of lightweight lubricant (WD40) and spray on one of the pulleys that the belt rides along, when you give it a quick shot if it is the belt squeaking it will change pitch or stop all together. Note that this isn't the fix but will tell you if that's your issue. Next guess would be that you possible have an intake leak, high vacuum caused by a turbo leaking through a crack could squeal, check your hose clamps and the 7 torx head screws that go around your intake air boxes, when I did my charcoal filter delete I noticed one of mine was almost entirely out. Let me know what you find. Good luck!
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