N53 squeak noise

Dormermike · 08-02-2018, 06:12 PM

Hi guys

I noticed if i blip the throttle on my 2012 57k n53 it makes a chirp or squeak noise. It sounds totally like a belt slipping but it seems to be coming from the rear of the engine under the manifold. Pretty sure it's not coming from CCV as I had the top cover off and listened.

In the clip it sounds like an air leak but up close it sounds more like a belt type chirp or squeal.

Any ideas please? Hoping someone recognises from the description.

Thanks
Mike

Clip. https://www.dropbox.com/s/fdxyfhz0se...93813.mp4?dl=0

Dormermike · 08-06-2018, 09:28 AM

Am I being an hypochondriac ?

LucasAry · 08-06-2018, 09:37 AM

Great One, UP

Phil325i · 08-06-2018, 01:54 PM

Sounds normal to me. Just the usual noisy piezo injectors.

Dormermike · 08-06-2018, 02:44 PM

Ah ok thanks Phil. That wheeze noise happens on yours too? Just as the throttle is opened? Swear I'd not noticed that before. .. maybe it's just induction

Phil325i · 08-07-2018, 12:07 PM

Yeah it's normal. Do a search on YouTube for N53 engine and you'll hear the same noise...

Will_460cs · 08-13-2018, 08:14 PM

The chirp is the PCV valve.. probably ok but worth testing... if you pout your finger over the breath hole on the pcv... if it sucks hard then the diaphragm is bad, the diaphragm maybe just starting to tear.. Mine made that noise prior to me changing it when the rubber was really perished when i took it out.

08-02-2018, 06:12 PM	#1
Dormermike Captain 102 Rep 681 Posts Drives: Bmw f10 Join Date: Dec 2015 Location: Uk iTrader: (0)	N53 squeak noise Hi guys I noticed if i blip the throttle on my 2012 57k n53 it makes a chirp or squeak noise. It sounds totally like a belt slipping but it seems to be coming from the rear of the engine under the manifold. Pretty sure it's not coming from CCV as I had the top cover off and listened. In the clip it sounds like an air leak but up close it sounds more like a belt type chirp or squeal. Any ideas please? Hoping someone recognises from the description. Thanks Mike Clip. https://www.dropbox.com/s/fdxyfhz0se...93813.mp4?dl=0
	Appreciate 0 Tweet Quote

08-06-2018, 09:28 AM	#2
Dormermike Captain 102 Rep 681 Posts Drives: Bmw f10 Join Date: Dec 2015 Location: Uk iTrader: (0)	Am I being an hypochondriac ?
	Appreciate 0 Quote

08-06-2018, 09:37 AM	#3
LucasAry Banned 11 Rep 65 Posts Drives: BMW 3 Series (E90 Join Date: Apr 2018 Location: US iTrader: (0)	Great One, UP
	Appreciate 0 Quote

08-06-2018, 01:54 PM	#4
Phil325i Brigadier General 615 Rep 3,193 Posts Drives: E92 325i MSport Coupe Join Date: Apr 2012 Location: UK South East iTrader: (1) Garage List 2009 BMW 325i Coupe [6.00]	Sounds normal to me. Just the usual noisy piezo injectors. __________________ E92 pre-LCI 325i - Ohlins R&T; H&R spacers; M3 strut brace; Swift thrust sheets; 3 x chassis braces; diff brace; N53 V-brace; 034 subframe inserts; BMS clutch stop; BMS CDV; RE g/box mounts; Delrin shift bushes; Saikoumichi OCC; Cyba scoops; BMW Perf Exhaust; HEL s/steel brake hoses; M3 rear spoiler; Recaro Sportster CSs; M3 white dash LEDs; LED Angels; LED side repeaters; BMW Perf black grille; CSL reps; SSDD carbon diffuser; Monster Wrap black roof/clear front
	Appreciate 0 Quote

08-06-2018, 02:44 PM	#5
Dormermike Captain 102 Rep 681 Posts Drives: Bmw f10 Join Date: Dec 2015 Location: Uk iTrader: (0)	Ah ok thanks Phil. That wheeze noise happens on yours too? Just as the throttle is opened? Swear I'd not noticed that before. .. maybe it's just induction
	Appreciate 0 Quote

08-07-2018, 12:07 PM	#6
Phil325i Brigadier General 615 Rep 3,193 Posts Drives: E92 325i MSport Coupe Join Date: Apr 2012 Location: UK South East iTrader: (1) Garage List 2009 BMW 325i Coupe [6.00]	Yeah it's normal. Do a search on YouTube for N53 engine and you'll hear the same noise... __________________ E92 pre-LCI 325i - Ohlins R&T; H&R spacers; M3 strut brace; Swift thrust sheets; 3 x chassis braces; diff brace; N53 V-brace; 034 subframe inserts; BMS clutch stop; BMS CDV; RE g/box mounts; Delrin shift bushes; Saikoumichi OCC; Cyba scoops; BMW Perf Exhaust; HEL s/steel brake hoses; M3 rear spoiler; Recaro Sportster CSs; M3 white dash LEDs; LED Angels; LED side repeaters; BMW Perf black grille; CSL reps; SSDD carbon diffuser; Monster Wrap black roof/clear front
	Appreciate 0 Quote

08-13-2018, 08:14 PM	#7
Will_460cs Lieutenant 209 Rep 461 Posts Drives: E46m3 e91 N53 e90 n55 Join Date: Dec 2011 Location: Cambridgeshire iTrader: (0)	The chirp is the PCV valve.. probably ok but worth testing... if you pout your finger over the breath hole on the pcv... if it sucks hard then the diaphragm is bad, the diaphragm maybe just starting to tear.. Mine made that noise prior to me changing it when the rubber was really perished when i took it out.
	Appreciate 0 Quote